**************************************************************************/
//
// This class Defines the Geometry for the ITS services and support cones
-// outside of the ceneteral volume (except for the Ceneteral support
-// cylinders. Other classes define the rest of the ITS. Specificaly the ITS
-// The SSD support cone, SSD Support central cylinder, SDD support cone,
-// The SDD cupport central cylinder, the SPD Thermal Sheald, The supports
+// outside of the central volume (except for the Central support
+// cylinders). Other classes define the rest of the ITS, specifically the
+// SSD support cone, the SSD Support central cylinder, the SDD support cone,
+// the SDD support central cylinder, the SPD Thermal Shield, The supports
// and cable trays on both the RB26 (muon dump) and RB24 sides, and all of
// the cabling from the ladders/stave ends out past the TPC.
//
+// Here is the calling sequence associated with this file
+// SPDSector(TGeoVolume *moth,TGeoManager *mgr)
+// -----CarbonFiberSector(TGeoVolume *moth,Double_t &xAAtubeCenter0,
+// Double_t &yAAtubeCenter0,TGeoManager *mgr)
+// -----2* SPDsectorShape(Int_t n,const Double_t *xc,const Double_t *yc,
+// | const Double_t *r,const Double_t *ths,
+// | const Double_t *the,Int_t npr,Int_t &m,
+// | Double_t **xp,Double_t **yp)
+// -----StavesInSector(TGeoVolume *moth,TGeoManager *mgr)
+// -----3* CreaeStave(Int_t layer,TArrayD &sizes,Bool_t addClips,
+// | TGeoManager *mgr)
+// | -----2* CreateHalfStave(Boot_t isRight,Int_t layer,
+// | Int_t idxCentral,Int_t idxSide,
+// | TArrayD &sizes,Bool_t addClips,
+// | TGeoManager *mgr)
+// | -----CreateGrondingFoil(Bool_t isRight,TArrayD &sizes,
+// | | TGeoManager *mgr)
+// | | -----4* CreateGroundingFoilSingle(Int_t type,
+// | | TArrayD &sizes,
+// | | TGeoManger *mgr)
+// | |----CreateLadder(Int_t layer, TArrayD &sizes,
+// | | TGeoManager *mgr)
+// | |----CreateMCM(Bool_t isRight,TArrayD &sizes,
+// | | TGeoManger *mgr)
+// | |----CreatePixelBus(Bool_t isRight,TArrayD &sizes,
+// | | TGeoManager *mgr)
+// | -----CreateClip(TArrayD &sizes,TGeoManager *mgr)
+// |----GetSectorMountingPoints(Int_t index,Double_t &x0,
+// | Double_t &y0,Double_t &x1,
+// | Double_t y1)
+// -----3* ParallelPosition(Double_t dist1,Double_t dist2,
+// Double_t phi,Double_t &x,Double_t &y)
+//
+// Obsoleate or presently unused routines are: setAddStave(Bool_t *mask),
+// CreatePixelBusAndExtensions(...) which calles CreateExtender(...).
+
+/* $Id$ */
+
+
+// General Root includes
+#include <Riostream.h>
+#include <TMath.h>
+#include <TLatex.h>
+#include <TCanvas.h>
+#include <TPolyLine.h>
+#include <TPolyMarker.h>
+
+// Root Geometry includes
+#include <TGeoCompositeShape.h>
+#include <TGeoEltu.h>
+#include <TGeoGlobalMagField.h>
+#include <TGeoMaterial.h>
+#include <TGeoMatrix.h>
+#include <TGeoMedium.h>
+#include <TGeoTube.h> // contains TGeoTubeSeg
+#include <TGeoVolume.h>
+#include <TGeoXtru.h>
+#include <TGeoPcon.h>
+
+// AliRoot includes
+#include "AliLog.h"
+#include "AliMagF.h"
+#include "AliRun.h"
+
+// Declaration file
+#include "AliITSv11GeometrySPD.h"
+
+// Constant definistions
+const Double_t AliITSv11GeometrySPD::fgkGapLadder =
+ AliITSv11Geometry::fgkmicron*75.; // 75 microns
+const Double_t AliITSv11GeometrySPD::fgkGapHalfStave =
+ AliITSv11Geometry::fgkmicron*120.; // 120 microns
+
+ClassImp(AliITSv11GeometrySPD)
+//______________________________________________________________________
+AliITSv11GeometrySPD::AliITSv11GeometrySPD(/*Double_t gap*/):
+AliITSv11Geometry(),// Default constructor of base class
+fAddStave(), // [DEBUG] must be TRUE for all staves which will be
+ // mounted in the sector (used to check overlaps)
+fSPDsectorX0(0), // X of first edge of sector plane for stave
+fSPDsectorY0(0), // Y of first edge of sector plane for stave
+fSPDsectorX1(0), // X of second edge of sector plane for stave
+fSPDsectorY1(0), // Y of second edge of sector plane for stave
+fTubeEndSector() // coordinate of cooling tube ends
+{
+ //
+ // Default constructor.
+ // This does not initialize anything and is provided just for
+ // completeness. It is recommended to use the other one.
+ // The alignment gap is specified as argument (default = 0.0075 cm).
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // A default constructed AliITSv11GeometrySPD class.
+ //
+ Int_t i = 0,j=0,k=0;
+
+ for (i = 0; i < 6; i++) fAddStave[i] = kTRUE;
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
+ this->fTubeEndSector[k][0][i][j] = 0.0;
+ this->fTubeEndSector[k][1][i][j] = 0.0;
+ } // end for i,j
+}
+//______________________________________________________________________
+AliITSv11GeometrySPD::AliITSv11GeometrySPD(Int_t debug/*, Double_t gap*/):
+AliITSv11Geometry(debug),// Default constructor of base class
+fAddStave(), // [DEBUG] must be TRUE for all staves which will be
+ // mounted in the sector (used to check overlaps)
+fSPDsectorX0(0), // X of first edge of sector plane for stave
+fSPDsectorY0(0), // Y of first edge of sector plane for stave
+fSPDsectorX1(0), // X of second edge of sector plane for stave
+fSPDsectorY1(0), // Y of second edge of sector plane for stave
+fTubeEndSector() // coordinate of cooling tube ends
+{
+ //
+ // Constructor with debug setting argument
+ // This is the constructor which is recommended to be used.
+ // It sets a debug level, and initializes the name of the object.
+ // The alignment gap is specified as argument (default = 0.0075 cm).
+ // Inputs:
+ // Int_t debug Debug level, 0= no debug output.
+ // Outputs:
+ // none.
+ // Return:
+ // A default constructed AliITSv11GeometrySPD class.
+ //
+ Int_t i = 0,j=0,k=0;
+
+ for (i = 0; i < 6; i++) fAddStave[i] = kTRUE;
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
+ this->fTubeEndSector[k][0][i][j] = 0.0;
+ this->fTubeEndSector[k][1][i][j] = 0.0;
+ } // end for i,j
+}
+//______________________________________________________________________
+AliITSv11GeometrySPD::AliITSv11GeometrySPD(const AliITSv11GeometrySPD &s):
+AliITSv11Geometry(s),// Base Class Copy constructor
+fAddStave(), // [DEBUG] must be TRUE for all staves which will be
+ // mounted in the sector (used to check overlaps)
+fSPDsectorX0(s.fSPDsectorX0), // X of first edge of sector plane for stave
+fSPDsectorY0(s.fSPDsectorY0), // Y of first edge of sector plane for stave
+fSPDsectorX1(s.fSPDsectorX1), // X of second edge of sector plane for stave
+fSPDsectorY1(s.fSPDsectorY1) // Y of second edge of sector plane for stave
+{
+ //
+ // Copy Constructor
+ // Inputs:
+ // AliITSv11GeometrySPD &s source class
+ // Outputs:
+ // none.
+ // Return:
+ // A copy of a AliITSv11GeometrySPD class.
+ //
+ Int_t i=0,j=0,k=0;
+
+ for (i = 0; i < 6; i++) this->fAddStave[i] = s.fAddStave[i];
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
+ this->fTubeEndSector[k][0][i][j] = s.fTubeEndSector[k][0][i][j];
+ this->fTubeEndSector[k][1][i][j] = s.fTubeEndSector[k][1][i][j];
+ } // end for i,j
+}
+//______________________________________________________________________
+AliITSv11GeometrySPD& AliITSv11GeometrySPD::operator=(const
+ AliITSv11GeometrySPD &s)
+{
+ //
+ // = operator
+ // Inputs:
+ // AliITSv11GeometrySPD &s source class
+ // Outputs:
+ // none.
+ // Return:
+ // A copy of a AliITSv11GeometrySPD class.
+ //
+ Int_t i=0,j=0,k=0;
+
+ if(this==&s) return *this;
+ for (i = 0; i < 6; i++) this->fAddStave[i] = s.fAddStave[i];
+ this->fSPDsectorX0=s.fSPDsectorX0;
+ this->fSPDsectorY0=s.fSPDsectorY0;
+ this->fSPDsectorX1=s.fSPDsectorX1;
+ this->fSPDsectorY1=s.fSPDsectorY1;
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
+ this->fTubeEndSector[k][0][i][j] = s.fTubeEndSector[k][0][i][j];
+ this->fTubeEndSector[k][1][i][j] = s.fTubeEndSector[k][1][i][j];
+ } // end for i,j
+ return *this;
+}
+//______________________________________________________________________
+TGeoMedium* AliITSv11GeometrySPD::GetMedium(const char* mediumName,
+ TGeoManager *mgr) const
+{
+ //
+ // This function is used to recovery any medium
+ // used to build the geometry volumes.
+ // If the required medium does not exists,
+ // a NULL pointer is returned, and an error message is written.
+ //
+ Char_t itsMediumName[30];
+
+ snprintf(itsMediumName, 30, "ITS_%s", mediumName);
+ TGeoMedium* medium = mgr->GetMedium(itsMediumName);
+ if (!medium) AliError(Form("Medium <%s> not found", mediumName));
+
+ return medium;
+}
+
+//______________________________________________________________________
+void AliITSv11GeometrySPD::SPDSector(TGeoVolume *moth, TGeoManager *mgr)
+{
+ //
+ // Creates a single SPD carbon fiber sector and places it
+ // in a container volume passed as first argument ('moth').
+ // Second argument points to the TGeoManager which coordinates
+ // the overall volume creation.
+ // The position of the sector is based on distance of
+ // closest point of SPD stave to beam pipe
+ // (figures all-sections-modules.ps) of 7.22mm at section A-A.
+ //
+
+ // Begin_Html
+ /*
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.ps"
+ title="SPD Sector drawing with all cross sections defined">
+ <p>The SPD Sector definition. In
+ <a href="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.hpgl">HPGL</a> format.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly-10-modules.ps"
+ titile="SPD All Sectors end view with thermal sheald">
+ <p>The SPD all sector end view with thermal sheald.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.ps"
+ title="SPD side view cross section">
+ <p>SPD side view cross section with condes and thermal shealds.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-A_A.jpg"
+ title="Cross section A-A"><p>Cross section A-A.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-B_B.jpg"
+ title="Cross updated section A-A"><p>Cross updated section A-A.
+ <img src="http://physics.mps.ohio-state.edu/~nilsen/ITSfigures/Sezione_layerAA.pdf"
+ title="Cross section B-B"><p>Cross section B-B.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-C_C.jpg"
+ title-"Cross section C-C"><p>Cross section C-C.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-D_D.jpg"
+ title="Cross section D-D"><p>Cross section D-D.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-E_E.jpg"
+ title="Cross section E-E"><p>Cross section E-E.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-F_F.jpg"
+ title="Cross section F-F"><p>Cross section F-F.
+ <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-G_G.jpg"
+ title="Cross section G-G"><p>Cross section G-G.
+ */
+ // End_Html
+
+ // Inputs:
+ // TGeoVolume *moth Pointer to mother volume where this object
+ // is to be placed in
+ // TGeoManager *mgr Pointer to the TGeoManager used, defaule is
+ // gGeoManager.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ // Updated values for kSPDclossesStaveAA, kBeamPipeRadius, and
+ // staveThicknessAA are taken from
+ // http://physics.mps.ohio-state.edu/~nilsen/ITSfigures/Sezione_layerAA.pdf
+ //
+ const Double_t kSPDclossesStaveAA = 7.25* fgkmm;
+ const Double_t kSectorStartingAngle = -72.0 * fgkDegree;
+ const Int_t kNSectorsTotal = 10;
+ const Double_t kSectorRelativeAngle = 36.0 * fgkDegree; // = 360.0 / 10
+ const Double_t kBeamPipeRadius = 0.5 * 59.6 * fgkmm; // diam. = 59.6 mm
+ //const Double_t staveThicknessAA = 0.9 *fgkmm; // nominal thickness
+ const Double_t staveThicknessAA = 1.02 * fgkmm; // get from stave geometry.
+
+ Int_t i, j, k;
+ Double_t angle, radiusSector, xAAtubeCenter0, yAAtubeCenter0;
+ TGeoCombiTrans *secRot = new TGeoCombiTrans(), *comrot;
+ TGeoVolume *vCarbonFiberSector[10];
+ TGeoMedium *medSPDcf;
+
+ // Define an assembly and fill it with the support of
+ // a single carbon fiber sector and staves in it
+ medSPDcf = GetMedium("SPD C (M55J)$", mgr);
+ for(Int_t is=0; is<10; is++)
+ {
+ vCarbonFiberSector[is] = new TGeoVolumeAssembly("ITSSPDCarbonFiberSectorV");
+ vCarbonFiberSector[is]->SetMedium(medSPDcf);
+ CarbonFiberSector(vCarbonFiberSector[is], is, xAAtubeCenter0, yAAtubeCenter0, mgr);
+ }
+
+ // Compute the radial shift out of the sectors
+ radiusSector = kBeamPipeRadius + kSPDclossesStaveAA + staveThicknessAA;
+ radiusSector = GetSPDSectorTranslation(fSPDsectorX0.At(1), fSPDsectorY0.At(1),
+ fSPDsectorX1.At(1), fSPDsectorY1.At(1), radiusSector);
+ //radiusSector *= radiusSector; // squaring;
+ //radiusSector -= xAAtubeCenter0 * xAAtubeCenter0;
+ //radiusSector = -yAAtubeCenter0 + TMath::Sqrt(radiusSector);
+
+ AliDebug(1, Form("SPDSector : radiusSector=%f\n",radiusSector));
+ i = 1;
+ AliDebug(1, Form("i= %d x0=%f y0=%f x1=%f y1=%f\n", i,
+ fSPDsectorX0.At(i), fSPDsectorY0.At(i),
+ fSPDsectorX1.At(i),fSPDsectorY1.At(i)));
+
+ // add 10 single sectors, by replicating the virtual sector defined above
+ // and placing at different angles
+ Double_t shiftX, shiftY, tub[2][6][3];
+ for(i=0;i<2;i++)for(j=0;j<6;j++)for(k=0;k<3;k++) tub[i][j][k] = fTubeEndSector[0][i][j][k];
+ angle = kSectorStartingAngle;
+ secRot->RotateZ(angle);
+ TGeoVolumeAssembly *vcenteral = new TGeoVolumeAssembly("ITSSPD");
+ moth->AddNode(vcenteral, 1, 0);
+ for(i = 0; i < kNSectorsTotal; i++) {
+ shiftX = -radiusSector * TMath::Sin(angle/fgkRadian);
+ shiftY = radiusSector * TMath::Cos(angle/fgkRadian);
+ //cout << "ANGLE = " << angle << endl;
+ shiftX += 0.1094 * TMath::Cos((angle + 196.)/fgkRadian);
+ shiftY += 0.1094 * TMath::Sin((angle + 196.)/fgkRadian);
+ //shiftX -= 0.105;
+ //shiftY -= 0.031;
+ //shiftX -= 0.11 * TMath::Cos(angle/fgkRadian); // add by Alberto
+ //shiftY -= 0.11 * TMath::Sin(angle/fgkRadian); // don't ask me where that 0.11 comes from!
+ secRot->SetDx(shiftX);
+ secRot->SetDy(shiftY);
+ comrot = new TGeoCombiTrans(*secRot);
+ vcenteral->AddNode(vCarbonFiberSector[i],i+1,comrot);
+ for(j=0;j<2;j++)for(k=0;k<6;k++) // Transform Tube ends for each sector
+ comrot->LocalToMaster(tub[j][k],fTubeEndSector[i][j][k]);
+ if(GetDebug(5)) {
+ AliInfo(Form("i=%d angle=%g angle[rad]=%g radiusSector=%g "
+ "x=%g y=%g \n",i, angle, angle/fgkRadian,
+ radiusSector, shiftX, shiftY));
+ } // end if GetDebug(5)
+ angle += kSectorRelativeAngle;
+ secRot->RotateZ(kSectorRelativeAngle);
+ } // end for i
+ if(GetDebug(3)) moth->PrintNodes();
+ delete secRot;
+
+ CreateCones(moth);
+}
+//______________________________________________________________________
+void AliITSv11GeometrySPD::CarbonFiberSector(TGeoVolume *moth, Int_t sect,
+ Double_t &xAAtubeCenter0, Double_t &yAAtubeCenter0, TGeoManager *mgr)
+{
+ // The method has been modified in order to build a support sector
+ // whose shape is dependent on the sector number; the aim is to get
+ // as close as possible to the shape inferred from alignment
+ // and avoid as much as possible overlaps generated by alignment.
+ //
+ // Define the detail SPD Carbon fiber support Sector geometry.
+ // Based on the drawings:
+ /*
+ http:///QA-construzione-profilo-modulo.ps
+ */
+ // - ALICE-Pixel "Costruzione Profilo Modulo" (march 25 2004)
+ // - ALICE-SUPPORTO "Costruzione Profilo Modulo"
+ // ---
+ // Define outside radii as negative, where "outside" means that the
+ // center of the arc is outside of the object (feb 16 2004).
+ // ---
+ // Arguments [the one passed by ref contain output values]:
+ // Inputs:
+ // TGeoVolume *moth the voulme which will contain this object
+ // TGeoManager *mgr TGeo builder defauls is gGeoManager
+ // Outputs:
+ // Double_t &xAAtubeCenter0 (by ref) x location of the outer surface
+ // of the cooling tube center for tube 0.
+ // Double_t &yAAtubeCenter0 (by ref) y location of the outer surface
+ // of the cooling tube center for tube 0.
+ // Return:
+ // none.
+ // ---
+ // Int the two variables passed by reference values will be stored
+ // which will then be used to correctly locate this sector.
+ // The information used for this is the distance between the
+ // center of the #0 detector and the beam pipe.
+ // Measurements are taken at cross section A-A.
+ //
+
+ //TGeoMedium *medSPDfs = 0;//SPD support cone inserto stesalite 4411w
+ //TGeoMedium *medSPDfo = 0;//SPD support cone foam, Rohacell 50A.
+ //TGeoMedium *medSPDal = 0;//SPD support cone SDD mounting bracket Al
+ TGeoMedium *medSPDcf = GetMedium("SPD C (M55J)$", mgr);
+ TGeoMedium *medSPDss = GetMedium("INOX$", mgr);
+ TGeoMedium *medSPDair = GetMedium("AIR$", mgr);
+ TGeoMedium *medSPDcoolfl = GetMedium("Freon$", mgr); //ITSspdCoolingFluid
+ //
+ const Double_t ksecDz = 0.5 * 500.0 * fgkmm;
+ //const Double_t ksecLen = 30.0 * fgkmm;
+ const Double_t ksecCthick = 0.2 * fgkmm;
+ const Double_t ksecDipLength = 3.2 * fgkmm;
+ const Double_t ksecDipRadii = 0.4 * fgkmm;
+ //const Double_t ksecCoolingTubeExtraDepth = 0.86 * fgkmm;
+ //
+ // The following positions ('ksecX#' and 'ksecY#') and radii ('ksecR#')
+ // are the centers and radii of curvature of all the rounded corners
+ // between the straight borders of the SPD sector shape.
+ // To draw this SPD sector, the following steps are followed:
+ // 1) the (ksecX, ksecY) points are plotted
+ // and circles of the specified radii are drawn around them.
+ // 2) each pair of consecutive circles is connected by a line
+ // tangent to them, in accordance with the radii being "internal"
+ // or "external" with respect to the closed shape which describes
+ // the sector itself.
+ // The resulting connected shape is the section
+ // of the SPD sector surface in the transverse plane (XY).
+ //
+ const Double_t ksecX0 = -10.725 * fgkmm;
+ const Double_t ksecY0 = -14.853 * fgkmm;
+ const Double_t ksecR0 = -0.8 * fgkmm; // external
+
+ const Double_t ksecR1 = +0.6 * fgkmm;
+ const Double_t ksecR2 = +0.6 * fgkmm;
+ const Double_t ksecR3 = -0.6 * fgkmm;
+ const Double_t ksecR4 = +0.8 * fgkmm;
+ const Double_t ksecR5 = +0.8 * fgkmm;
+ const Double_t ksecR6 = +0.6 * fgkmm;
+ const Double_t ksecR7 = -0.6 * fgkmm;
+ const Double_t ksecR8 = +0.6 * fgkmm;
+ const Double_t ksecR9 = -0.6 * fgkmm;
+ const Double_t ksecR10 = +0.6 * fgkmm;
+ const Double_t ksecR11 = -0.6 * fgkmm;
+ const Double_t ksecR12 = +0.85 * fgkmm;
+
+// // IDEAL GEOMETRY
+// const Double_t ksecX1[10] ={-1.3187,-1.3187,-1.3187,-1.3187,-1.3187,-1.3187,-1.3187,-1.3187,-1.3187,-1.3187};
+// const Double_t ksecY1[10] ={-1.9964,-1.9964,-1.9964,-1.9964,-1.9964,-1.9964,-1.9964,-1.9964,-1.9964,-1.9964};
+// const Double_t ksecX2[10] ={-0.3833,-0.3833,-0.3833,-0.3833,-0.3833,-0.3833,-0.3833,-0.3833,-0.3833,-0.3833};
+// const Double_t ksecY2[10] ={-1.7805,-1.7805,-1.7805,-1.7805,-1.7805,-1.7805,-1.7805,-1.7805,-1.7805,-1.7805};
+// const Double_t ksecX3[10] ={-0.3123,-0.3123,-0.3123,-0.3123,-0.3123,-0.3123,-0.3123,-0.3123,-0.3123,-0.3123};
+// const Double_t ksecY3[10] ={-1.4618,-1.4618,-1.4618,-1.4618,-1.4618,-1.4618,-1.4618,-1.4618,-1.4618,-1.4618};
+// const Double_t ksecX4[10] ={+1.1280,+1.1280,+1.1280,+1.1280,+1.1280,+1.1280,+1.1280,+1.1280,+1.1280,+1.1280};
+// const Double_t ksecY4[10] ={-1.4473,-1.4473,-1.4473,-1.4473,-1.4473,-1.4473,-1.4473,-1.4473,-1.4473,-1.4473};
+// const Double_t ksecX5[10] ={+1.9544,+1.9544,+1.9544,+1.9544,+1.9544,+1.9544,+1.9544,+1.9544,+1.9544,+1.9544};
+// const Double_t ksecY5[10] ={+1.0961,+1.0961,+1.0961,+1.0961,+1.0961,+1.0961,+1.0961,+1.0961,+1.0961,+1.0961};
+// const Double_t ksecX6[10] ={+1.0830,+1.0830,+1.0830,+1.0830,+1.0830,+1.0830,+1.0830,+1.0830,+1.0830,+1.0830};
+// const Double_t ksecY6[10] ={+1.6868,+1.6868,+1.6868,+1.6868,+1.6868,+1.6868,+1.6868,+1.6868,+1.6868,+1.6868};
+// const Double_t ksecX7[10] ={+1.1581,+1.1581,+1.1581,+1.1581,+1.1581,+1.1581,+1.1581,+1.1581,+1.1581,+1.1581};
+// const Double_t ksecY7[10] ={+1.3317,+1.3317,+1.3317,+1.3317,+1.3317,+1.3317,+1.3317,+1.3317,+1.3317,+1.3317};
+// const Double_t ksecX8[10] ={-0.0733,-0.0733,-0.0733,-0.0733,-0.0733,-0.0733,-0.0733,-0.0733,-0.0733,-0.0733};
+// const Double_t ksecY8[10] ={+1.7486,+1.7486,+1.7486,+1.7486,+1.7486,+1.7486,+1.7486,+1.7486,+1.7486,+1.7486};
+// const Double_t ksecX9[10] ={+0.0562,+0.0562,+0.0562,+0.0562,+0.0562,+0.0562,+0.0562,+0.0562,+0.0562,+0.0562};
+// const Double_t ksecY9[10] ={+1.4107,+1.4107,+1.4107,+1.4107,+1.4107,+1.4107,+1.4107,+1.4107,+1.4107,+1.4107};
+// const Double_t ksecX10[10]={-1.2252,-1.2252,-1.2252,-1.2252,-1.2252,-1.2252,-1.2252,-1.2252,-1.2252,-1.2252};
+// const Double_t ksecY10[10]={+1.6298,+1.6298,+1.6298,+1.6298,+1.6298,+1.6298,+1.6298,+1.6298,+1.6298,+1.6298};
+// const Double_t ksecX11[10]={-1.0445,-1.0445,-1.0445,-1.0445,-1.0445,-1.0445,-1.0445,-1.0445,-1.0445,-1.0445};
+// const Double_t ksecY11[10]={+1.3162,+1.3162,+1.3162,+1.3162,+1.3162,+1.3162,+1.3162,+1.3162,+1.3162,+1.3162};
+// const Double_t ksecX12[10]={-2.2276,-2.2276,-2.2276,-2.2276,-2.2276,-2.2276,-2.2276,-2.2276,-2.2276,-2.2276};
+// const Double_t ksecY12[10]={+1.2948,+1.2948,+1.2948,+1.2948,+1.2948,+1.2948,+1.2948,+1.2948,+1.2948,+1.2948};
+
+
+// MODIFIED GEOMETRY according with partial alignment of Staves relative to Sectors
+// last numbers: 2010/06/11 (ML)
+
+ const Double_t ksecX1[10]={-1.305917, -1.322242, -1.300649, -1.298700, -1.290830, -1.274307, -1.276433, -1.286468, -1.274381, -1.314864};
+ const Double_t ksecY1[10]={-1.997857, -2.018611, -2.005854, -2.004897, -1.995517, -2.002552, -1.995860, -2.021062, -2.012931, -2.043967};
+ const Double_t ksecX2[10]={-0.366115, -0.385562, -0.372689, -0.365682, -0.348432, -0.348442, -0.342468, -0.354071, -0.346900, -0.381275};
+ const Double_t ksecY2[10]={-1.801679, -1.808306, -1.759315, -1.778851, -1.811655, -1.747888, -1.773811, -1.792427, -1.764514, -1.820324};
+// const Double_t ksecX1[10]={-1.305917, -1.322242, -1.300649, -1.298700, -1.290830, -1.274307, -1.276433, -1.286468, -1.274381, -1.325864};
+// const Double_t ksecY1[10]={-1.997857, -2.018611, -2.005854, -2.004897, -1.995517, -2.002552, -1.995860, -2.021062, -2.012931, -2.032967};
+// const Double_t ksecX2[10]={-0.366115, -0.385562, -0.372689, -0.365682, -0.348432, -0.348442, -0.342468, -0.354071, -0.346900, -0.392275};
+// const Double_t ksecY2[10]={-1.801679, -1.808306, -1.759315, -1.778851, -1.811655, -1.747888, -1.773811, -1.792427, -1.764514, -1.809324};
+ const Double_t ksecX3[10]={-0.314030, -0.315531, -0.347521, -0.337675, -0.300420, -0.378487, -0.330729, -0.330850, -0.362360, -0.321097};
+ const Double_t ksecY3[10]={-1.452488, -1.460418, -1.447060, -1.443146, -1.472410, -1.430019, -1.469073, -1.472048, -1.462010, -1.444355};
+ const Double_t ksecX4[10]={1.124299, 1.124162, 1.089523, 1.095520, 1.136171, 1.058616, 1.105626, 1.106433, 1.077455, 1.117946};
+ const Double_t ksecY4[10]={-1.458714, -1.452649, -1.465297, -1.492717, -1.494665, -1.447732, -1.493369, -1.488126, -1.452925, -1.443447};
+ const Double_t ksecX5[10]={1.951621, 1.939284, 1.931830, 1.935235, 1.952206, 1.939082, 1.924822, 1.940114, 1.918160, 1.960017};
+ const Double_t ksecY5[10]={1.092731, 1.118870, 1.129765, 1.129422, 1.081511, 1.127387, 1.103960, 1.101784, 1.121428, 1.150110};
+ const Double_t ksecX6[10]={1.070070, 1.048297, 1.035920, 1.049049, 1.083621, 1.045882, 1.050399, 1.067823, 1.037967, 1.070850};
+ const Double_t ksecY6[10]={1.667590, 1.678571, 1.681383, 1.696892, 1.676520, 1.683470, 1.689988, 1.691111, 1.698432, 1.712770};
+ const Double_t ksecX7[10]={1.139398, 1.150471, 1.150074, 1.132807, 1.150192, 1.124064, 1.124335, 1.137723, 1.143056, 1.130568};
+ const Double_t ksecY7[10]={1.345588, 1.356062, 1.342468, 1.320467, 1.335807, 1.334477, 1.328622, 1.347184, 1.319861, 1.308420};
+ const Double_t ksecX8[10]={-0.096963, -0.098603, -0.095286, -0.099990, -0.075132, -0.121593, -0.108673, -0.104237, -0.092082, -0.104044};
+ const Double_t ksecY8[10]={1.751207, 1.731467, 1.726908, 1.734219, 1.766159, 1.718203, 1.741891, 1.739743, 1.728288, 1.718046};
+ const Double_t ksecX9[10]={0.047615, 0.087875, 0.034917, 0.071603, 0.026468, 0.091619, 0.051994, 0.059947, 0.079785, 0.043443};
+ const Double_t ksecY9[10]={1.414699, 1.403187, 1.399061, 1.403430, 1.435056, 1.384557, 1.397692, 1.420269, 1.391372, 1.398954};
+ const Double_t ksecX10[10]={-1.233255, -1.186874, -1.246702, -1.213368, -1.259425, -1.190067, -1.225655, -1.224171, -1.197833, -1.237182};
+ const Double_t ksecY10[10]={1.635767, 1.646249, 1.617336, 1.608928, 1.636944, 1.602583, 1.630504, 1.629065, 1.624295, 1.620934};
+ const Double_t ksecX11[10]={-1.018270, -1.031317, -0.960524, -1.001155, -1.045437, -0.986867, -1.002685, -1.017369, -1.005614, -0.985385};
+ const Double_t ksecY11[10]={1.318108, 1.330683, 1.301572, 1.314410, 1.326680, 1.295226, 1.306372, 1.309414, 1.306542, 1.307086};
+ const Double_t ksecX12[10]={-2.199004, -2.214964, -2.139247, -2.180547, -2.224505, -2.165324, -2.175883, -2.193485, -2.183227, -2.161570};
+ const Double_t ksecY12[10]={1.317677, 1.303982, 1.317057, 1.324766, 1.339537, 1.312715, 1.359642, 1.343638, 1.330234, 1.340836};
+
+
+ const Double_t ksecR13 = -0.8 * fgkmm; // external
+ const Double_t ksecAngleSide13 = 36.0 * fgkDegree;
+ //
+ const Int_t ksecNRadii = 20;
+ const Int_t ksecNPointsPerRadii = 4;
+ const Int_t ksecNCoolingTubeDips = 6;
+ //
+ // Since the rounded parts are approximated by a regular polygon
+ // and a cooling tube of the propper diameter must fit, a scaling factor
+ // increases the size of the polygon for the tube to fit.
+ //const Double_t ksecRCoolScale = 1./TMath::Cos(TMath::Pi()/
+ // (Double_t)ksecNPointsPerRadii);
+ const Double_t ksecZEndLen = 30.000 * fgkmm;
+ //const Double_t ksecZFlangLen = 45.000 * fgkmm;
+ const Double_t ksecTl = 0.860 * fgkmm;
+ const Double_t ksecCthick2 = 0.600 * fgkmm;
+ //const Double_t ksecCthick3 = 1.80 * fgkmm;
+ //const Double_t ksecSidelen = 22.0 * fgkmm;
+ //const Double_t ksecSideD5 = 3.679 * fgkmm;
+ //const Double_t ksecSideD12 = 7.066 * fgkmm;
+ const Double_t ksecRCoolOut = 2.400 * fgkmm;
+ const Double_t ksecRCoolIn = 2.000 * fgkmm;
+ const Double_t ksecDl1 = 5.900 * fgkmm;
+ const Double_t ksecDl2 = 8.035 * fgkmm;
+ const Double_t ksecDl3 = 4.553 * fgkmm;
+ const Double_t ksecDl4 = 6.978 * fgkmm;
+ const Double_t ksecDl5 = 6.978 * fgkmm;
+ const Double_t ksecDl6 = 6.978 * fgkmm;
+ const Double_t ksecCoolTubeThick = 0.04 * fgkmm;
+ const Double_t ksecCoolTubeROuter = 2.6 * fgkmm;
+ const Double_t ksecCoolTubeFlatX = 3.696 * fgkmm;
+ const Double_t ksecCoolTubeFlatY = 0.68 * fgkmm;
+ //const Double_t ksecBeamX0 = 0.0 * fgkmm; // guess
+ //const Double_t ksecBeamY0 = (15.223 + 40.) * fgkmm; // guess
+ //
+ // redefine some of the points already defined above
+ // in the format of arrays (???)
+ const Int_t ksecNPoints = (ksecNPointsPerRadii + 1) * ksecNRadii + 8;
+ Double_t secX[ksecNRadii] = {
+ ksecX0, ksecX1[sect], -1000.0,
+ ksecX2[sect], ksecX3[sect], -1000.0,
+ ksecX4[sect], ksecX5[sect], -1000.0,
+ ksecX6[sect], ksecX7[sect], -1000.0,
+ ksecX8[sect], ksecX9[sect], -1000.0,
+ ksecX10[sect], ksecX11[sect], -1000.0,
+ ksecX12[sect], -1000.0
+ };
+ Double_t secY[ksecNRadii] = {
+ ksecY0, ksecY1[sect], -1000.0,
+ ksecY2[sect], ksecY3[sect], -1000.0,
+ ksecY4[sect], ksecY5[sect], -1000.0,
+ ksecY6[sect], ksecY7[sect], -1000.0,
+ ksecY8[sect], ksecY9[sect], -1000.0,
+ ksecY10[sect], ksecY11[sect], -1000.0,
+ ksecY12[sect], -1000.0
+ };
+ Double_t secR[ksecNRadii] = {
+ ksecR0, ksecR1, -.5 * ksecDipLength - ksecDipRadii,
+ ksecR2, ksecR3, -.5 * ksecDipLength - ksecDipRadii,
+ ksecR4, ksecR5, -.5 * ksecDipLength - ksecDipRadii,
+ ksecR6, ksecR7, -.5 * ksecDipLength - ksecDipRadii,
+ ksecR8, ksecR9, -.5 * ksecDipLength - ksecDipRadii,
+ ksecR10, ksecR11, -.5 * ksecDipLength - ksecDipRadii,
+ ksecR12, ksecR13
+ };
+
+ Double_t secX2[ksecNRadii];
+ Double_t secY2[ksecNRadii];
+ Double_t secR2[ksecNRadii] = {
+ ksecR0, ksecR1, ksecRCoolOut,
+ ksecR2, ksecR3, ksecRCoolOut,
+ ksecR4, ksecR5, ksecRCoolOut,
+ ksecR6, ksecR7, ksecRCoolOut,
+ ksecR8, ksecR9, ksecRCoolOut,
+ ksecR10, ksecR11, ksecRCoolOut,
+ ksecR12, ksecR13
+ };
+ Double_t secDip2[ksecNCoolingTubeDips] = {
+ ksecDl1, ksecDl2, ksecDl3,
+ ksecDl4, ksecDl5, ksecDl6
+ };
+ Double_t secX3[ksecNRadii];
+ Double_t secY3[ksecNRadii];
+ const Int_t ksecDipIndex[ksecNCoolingTubeDips] = {2, 5, 8, 11, 14, 17};
+ Double_t secAngleStart[ksecNRadii];
+ Double_t secAngleEnd[ksecNRadii];
+ for(Int_t i = 0; i < ksecNRadii; i++)secAngleEnd[i] = 0.;
+ Double_t secAngleStart2[ksecNRadii];
+ Double_t secAngleEnd2[ksecNRadii];
+ Double_t secAngleTurbo[ksecNCoolingTubeDips] = {0., 0., 0., 0., 0., 0.0};
+ //Double_t secAngleStart3[ksecNRadii];
+ //Double_t secAngleEnd3[ksecNRadii];
+ Double_t xpp[ksecNPoints], ypp[ksecNPoints];
+ Double_t xpp2[ksecNPoints], ypp2[ksecNPoints];
+ Double_t *xp[ksecNRadii], *xp2[ksecNRadii];
+ Double_t *yp[ksecNRadii], *yp2[ksecNRadii];
+ TGeoXtru *sA0, *sA1, *sB0, *sB1,*sB2;
+ TGeoBBox *sB3;
+ TGeoEltu *sTA0, *sTA1;
+ TGeoTube *sTB0, *sTB1; //,*sM0;
+ TGeoRotation *rot;
+ TGeoTranslation *trans;
+ TGeoCombiTrans *rotrans;
+ Double_t t, t0, t1, a, b, x0, y0,z0, x1, y1;
+ Int_t i, j, k, m;
+ Bool_t tst;
+
+ if(!moth) {
+ AliError("Container volume (argument) is NULL");
+ return;
+ } // end if(!moth)
+ for(i = 0; i < ksecNRadii; i++) {
+ xp[i] = &(xpp[i*(ksecNPointsPerRadii+1)]);
+ yp[i] = &(ypp[i*(ksecNPointsPerRadii+1)]);
+ xp2[i] = &(xpp2[i*(ksecNPointsPerRadii+1)]);
+ yp2[i] = &(ypp2[i*(ksecNPointsPerRadii+1)]);
+ secX2[i] = secX[i];
+ secY2[i] = secY[i];
+ secX3[i] = secX[i];
+ secY3[i] = secY[i];
+ } // end for i
+ //
+ // find starting and ending angles for all but cooling tube sections
+ secAngleStart[0] = 0.5 * ksecAngleSide13;
+ for(i = 0; i < ksecNRadii - 2; i++) {
+ tst = kFALSE;
+ for(j=0;j<ksecNCoolingTubeDips;j++) tst = (tst||i==ksecDipIndex[j]);
+ if (tst) continue;
+ tst = kFALSE;
+ for(j=0;j<ksecNCoolingTubeDips;j++) tst =(tst||(i+1)==ksecDipIndex[j]);
+ if (tst) j = i+2; else j = i+1;
+ AnglesForRoundedCorners(secX[i],secY[i],secR[i],secX[j],secY[j],
+ secR[j],t0,t1);
+ secAngleEnd[i] = t0;
+ secAngleStart[j] = t1;
+ if(secR[i] > 0.0 && secR[j] > 0.0) {
+ if(secAngleStart[i] > secAngleEnd[i]) secAngleEnd[i] += 360.0;
+ } // end if(secR[i]>0.0 && secR[j]>0.0)
+ secAngleStart2[i] = secAngleStart[i];
+ secAngleEnd2[i] = secAngleEnd[i];
+ } // end for i
+ secAngleEnd[ksecNRadii-2] = secAngleStart[ksecNRadii-2] +
+ (secAngleEnd[ksecNRadii-5] - secAngleStart[ksecNRadii-5]);
+ if (secAngleEnd[ksecNRadii-2] < 0.0) secAngleEnd[ksecNRadii-2] += 360.0;
+ secAngleStart[ksecNRadii-1] = secAngleEnd[ksecNRadii-2] - 180.0;
+ secAngleEnd[ksecNRadii-1] = secAngleStart[0];
+ secAngleStart2[ksecNRadii-2] = secAngleStart[ksecNRadii-2];
+ secAngleEnd2[ksecNRadii-2] = secAngleEnd[ksecNRadii-2];
+ secAngleStart2[ksecNRadii-1] = secAngleStart[ksecNRadii-1];
+ secAngleEnd2[ksecNRadii-1] = secAngleEnd[ksecNRadii-1];
+ //
+ // find location of circle last rounded corner.
+ i = 0;
+ j = ksecNRadii - 2;
+ t0 = TanD(secAngleStart[i]-90.);
+ t1 = TanD(secAngleEnd[j]-90.);
+ t = secY[i] - secY[j];
+ // NOTE: secR[i=0] < 0; secR[j=18] > 0; and secR[j+1=19] < 0
+ t += (-secR[i]+secR[j+1]) * SinD(secAngleStart[i]);
+ t -= (secR[j]-secR[j+1]) * SinD(secAngleEnd[j]);
+ t += t1 * secX[j] - t0*secX[i];
+ t += t1 * (secR[j] - secR[j+1]) * CosD(secAngleEnd[j]);
+ t -= t0 * (-secR[i]+secR[j+1]) * CosD(secAngleStart[i]);
+ secX[ksecNRadii-1] = t / (t1-t0);
+ secY[ksecNRadii-1] = TanD(90.0+0.5*ksecAngleSide13)*
+ (secX[ksecNRadii-1]-secX[0])+secY[0];
+ secX2[ksecNRadii-1] = secX[ksecNRadii-1];
+ secY2[ksecNRadii-1] = secY[ksecNRadii-1];
+ secX3[ksecNRadii-1] = secX[ksecNRadii-1];
+ secY3[ksecNRadii-1] = secY[ksecNRadii-1];
+
+ // find location of cooling tube centers
+ for(i = 0; i < ksecNCoolingTubeDips; i++) {
+ j = ksecDipIndex[i];
+ x0 = secX[j-1] + TMath::Abs(secR[j-1]) * CosD(secAngleEnd[j-1]);
+ y0 = secY[j-1] + TMath::Abs(secR[j-1]) * SinD(secAngleEnd[j-1]);
+ x1 = secX[j+1] + TMath::Abs(secR[j+1]) * CosD(secAngleStart[j+1]);
+ y1 = secY[j+1] + TMath::Abs(secR[j+1]) * SinD(secAngleStart[j+1]);
+ t0 = TMath::Sqrt((x0-x1)*(x0-x1)+(y0-y1)*(y0-y1));
+ t = secDip2[i] / t0;
+ a = x0+(x1-x0) * t;
+ b = y0+(y1-y0) * t;
+ if(i == 0) {
+ // get location of tube center->Surface for locating
+ // this sector around the beam pipe.
+ // This needs to be double checked, but I need my notes for that.
+ // (Bjorn Nilsen)
+ xAAtubeCenter0 = x0 + (x1 - x0) * t * 0.5;
+ yAAtubeCenter0 = y0 + (y1 - y0) * t * 0.5;
+ }// end if i==0
+ if(a + b*(a - x0) / (b - y0) > 0.0) {
+ secX[j] = a + TMath::Abs(y1-y0) * 2.0 * ksecDipRadii/t0;
+ secY[j] = b - TMath::Sign(2.0*ksecDipRadii,y1-y0) * (x1-x0)/t0;
+ secX2[j] = a + TMath::Abs(y1-y0) * ksecTl/t0;
+ secY2[j] = b - TMath::Sign(ksecTl,y1-y0) * (x1-x0) / t0;
+ secX3[j] = a + TMath::Abs(y1-y0) *
+ (2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY)/t0;
+ secY3[j] = b - TMath::Sign(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY,
+ y1-y0)*(x1-x0)/t0;
+ } else {
+ secX[j] = a - TMath::Abs(y1-y0)*2.0*ksecDipRadii/t0;
+ secY[j] = b + TMath::Sign(2.0*ksecDipRadii,y1-y0)*(x1-x0)/t0;
+ secX2[j] = a - TMath::Abs(y1-y0)*ksecTl/t0;
+ secY2[j] = b + TMath::Sign(ksecTl,y1-y0)*(x1-x0)/t0;
+ secX3[j] = a - TMath::Abs(y1-y0)*(2.0*ksecDipRadii-0.5*
+ ksecCoolTubeFlatY)/t0;
+ secY3[j] = b + TMath::Sign(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY,
+ y1-y0)*(x1-x0)/t0;
+ } // end if(a+b*(a-x0)/(b-y0)>0.0)
+
+ // Set up Start and End angles to correspond to start/end of dips.
+ t1 = (secDip2[i]-TMath::Abs(secR[j])) / t0;
+ secAngleStart[j] =TMath::RadToDeg()*TMath::ATan2(y0+(y1-y0)*t1-secY[j],
+ x0+(x1-x0)*t1-secX[j]);
+ if (secAngleStart[j]<0.0) secAngleStart[j] += 360.0;
+ secAngleStart2[j] = secAngleStart[j];
+ t1 = (secDip2[i]+TMath::Abs(secR[j]))/t0;
+ secAngleEnd[j] = TMath::RadToDeg()*TMath::ATan2(y0+(y1-y0)*t1-secY[j],
+ x0+(x1-x0)*t1-secX[j]);
+ if (secAngleEnd[j]<0.0) secAngleEnd[j] += 360.0;
+ secAngleEnd2[j] = secAngleEnd[j];
+ if (secAngleEnd[j]>secAngleStart[j]) secAngleEnd[j] -= 360.0;
+ secR[j] = TMath::Sqrt(secR[j]*secR[j]+4.0*ksecDipRadii*ksecDipRadii);
+ } // end for i
+
+ // Special cases
+ secAngleStart2[8] -= 360.;
+ secAngleStart2[11] -= 360.;
+
+ SPDsectorShape(ksecNRadii, secX, secY, secR, secAngleStart, secAngleEnd,
+ ksecNPointsPerRadii, m, xp, yp);
+
+ // Fix up dips to be square.
+ for(i = 0; i < ksecNCoolingTubeDips; i++) {
+ j = ksecDipIndex[i];
+ t = 0.5*ksecDipLength+ksecDipRadii;
+ t0 = TMath::RadToDeg()*TMath::ATan(2.0*ksecDipRadii/t);
+ t1 = secAngleEnd[j] + t0;
+ t0 = secAngleStart[j] - t0;
+ x0 = xp[j][1] = secX[j] + t*CosD(t0);
+ y0 = yp[j][1] = secY[j] + t*SinD(t0);
+ x1 = xp[j][ksecNPointsPerRadii-1] = secX[j] + t*CosD(t1);
+ y1 = yp[j][ksecNPointsPerRadii-1] = secY[j] + t*SinD(t1);
+ t0 = 1./((Double_t)(ksecNPointsPerRadii-2));
+ for(k = 2; k < ksecNPointsPerRadii - 1; k++) {
+ // extra points spread them out.
+ t = ((Double_t)(k-1)) * t0;
+ xp[j][k] = x0+(x1-x0) * t;
+ yp[j][k] = y0+(y1-y0) * t;
+ } // end for k
+ secAngleTurbo[i] = -TMath::RadToDeg() * TMath::ATan2(y1-y0, x1-x0);
+ if(GetDebug(3)) {
+ AliInfo(
+ Form("i=%d -- angle=%f -- x0,y0=(%f, %f) -- x1,y1=(%f, %f)",
+ i, secAngleTurbo[i], x0, y0, x1, y1));
+ } // end if GetDebug(3)
+ } // end for i
+ sA0 = new TGeoXtru(2);
+ sA0->SetName("ITS SPD Carbon fiber support Sector A0");
+ sA0->DefinePolygon(m, xpp, ypp);
+ sA0->DefineSection(0, -ksecDz);
+ sA0->DefineSection(1, ksecDz);
+
+ // store the edges of each XY segment which defines
+ // one of the plane zones where staves will have to be placed
+ fSPDsectorX0.Set(ksecNCoolingTubeDips);
+ fSPDsectorY0.Set(ksecNCoolingTubeDips);
+ fSPDsectorX1.Set(ksecNCoolingTubeDips);
+ fSPDsectorY1.Set(ksecNCoolingTubeDips);
+ Int_t ixy0, ixy1;
+ for(i = 0; i < ksecNCoolingTubeDips; i++) {
+ // Find index in xpp[] and ypp[] corresponding to where the
+ // SPD ladders are to be attached. Order them according to
+ // the ALICE numbering schema. Using array of indexes (+-1 for
+ // cooling tubes. For any "bend/dip/edge, there are
+ // ksecNPointsPerRadii+1 points involved.
+ if(i == 0) j = 1;
+ else if (i == 1) j = 0;
+ else j = i;
+ ixy0 = (ksecDipIndex[j]-1)*(ksecNPointsPerRadii+1)+
+ (ksecNPointsPerRadii);
+ ixy1 = (ksecDipIndex[j]+1) * (ksecNPointsPerRadii+1);
+ fSPDsectorX0[i] = sA0->GetX(ixy0);
+ fSPDsectorY0[i] = sA0->GetY(ixy0);
+ fSPDsectorX1[i] = sA0->GetX(ixy1);
+ fSPDsectorY1[i] = sA0->GetY(ixy1);
+ } // end for i
+
+ //printf("SectorA#%d ",0);
+ InsidePoint(xpp[m-1],ypp[m-1],xpp[0],ypp[0],xpp[1],ypp[1],ksecCthick,
+ xpp2[0],ypp2[0]);
+ for(i = 1; i < m - 1; i++) {
+ j = i / (ksecNPointsPerRadii+1);
+ //printf("SectorA#%d ",i);
+ InsidePoint(xpp[i-1],ypp[i-1],xpp[i],ypp[i],xpp[i+1],ypp[i+1],
+ ksecCthick,xpp2[i],ypp2[i]);
+ } // end for i
+ //printf("SectorA#%d ",m);
+ InsidePoint(xpp[m-2],ypp[m-2],xpp[m-1],ypp[m-1],xpp[0],ypp[0],
+ ksecCthick,xpp2[m-1],ypp2[m-1]);
+ // Fix center value of cooling tube dip and
+ // find location of cooling tube centers
+ for(i = 0; i < ksecNCoolingTubeDips; i++) {
+ j = ksecDipIndex[i];
+ x0 = xp2[j][1];
+ y0 = yp2[j][1];
+ x1 = xp2[j][ksecNPointsPerRadii-1];
+ y1 = yp2[j][ksecNPointsPerRadii-1];
+ t0 = TMath::Sqrt((x0-x1)*(x0-x1)+(y0-y1)*(y0-y1));
+ t = secDip2[i]/t0;
+ for(k = 2; k < ksecNPointsPerRadii - 1; k++) {
+ // extra points spread them out.
+ t = ((Double_t)(k-1)) * t0;
+ xp2[j][k] = x0+(x1-x0) * t;
+ yp2[j][k] = y0+(y1-y0) * t;
+ } // end for k
+ } // end for i
+ sA1 = new TGeoXtru(2);
+ sA1->SetName("ITS SPD Carbon fiber support Sector Air A1");
+ sA1->DefinePolygon(m, xpp2, ypp2);
+ sA1->DefineSection(0, -ksecDz);
+ sA1->DefineSection(1, ksecDz);
+ //
+ // Error in TGeoEltu. Semi-axis X must be < Semi-axis Y (?).
+ sTA0 = new TGeoEltu("ITS SPD Cooling Tube TA0", 0.5 * ksecCoolTubeFlatY,
+ 0.5 * ksecCoolTubeFlatX, ksecDz);
+ sTA1 = new TGeoEltu("ITS SPD Cooling Tube coolant TA1",
+ sTA0->GetA() - ksecCoolTubeThick,
+ sTA0->GetB()-ksecCoolTubeThick,ksecDz);
+ SPDsectorShape(ksecNRadii,secX2,secY2,secR2,secAngleStart2,secAngleEnd2,
+ ksecNPointsPerRadii, m, xp, yp);
+ sB0 = new TGeoXtru(2);
+ sB0->SetName("ITS SPD Carbon fiber support Sector End B0");
+ sB0->DefinePolygon(m, xpp, ypp);
+ sB0->DefineSection(0, ksecDz);
+ sB0->DefineSection(1, ksecDz + ksecZEndLen);
+
+ //printf("SectorB#%d ",0);
+ // Points around the most sharpened tips have to be avoided - M.S. 24 feb 09
+ const Int_t nSpecialPoints = 5;
+ const Int_t kSpecialPoints[nSpecialPoints] = {7, 17, 47, 62, 77};
+ Int_t i2 = 0;
+ InsidePoint(xpp[m-1],ypp[m-1],xpp[0],ypp[0],xpp[1],ypp[1],
+ ksecCthick2,xpp2[i2],ypp2[i2]);
+ for(i = 1; i < m - 1; i++) {
+ t = ksecCthick2;
+ for(k = 0; k < ksecNCoolingTubeDips; k++)
+ if((i/(ksecNPointsPerRadii+1))==ksecDipIndex[k])
+ if(!(ksecDipIndex[k]*(ksecNPointsPerRadii+1) == i ||
+ ksecDipIndex[k]*(ksecNPointsPerRadii+1) +
+ ksecNPointsPerRadii == i))
+ t = ksecRCoolOut-ksecRCoolIn;
+ //printf("SectorB#%d ",i);
+ Bool_t useThisPoint = kTRUE;
+ for(Int_t ii = 0; ii < nSpecialPoints; ii++)
+ if ( (i == kSpecialPoints[ii] - 1) ||
+ (i == kSpecialPoints[ii] + 1) ) useThisPoint = kFALSE;
+ if (useThisPoint) {
+ i2++;
+ InsidePoint(xpp[i-1],ypp[i-1],xpp[i],ypp[i],xpp[i+1],ypp[i+1],t,
+ xpp2[i2],ypp2[i2]);
+ }
+ }// end for i
+ //printf("SectorB#%d ",m);
+ i2++;
+ InsidePoint(xpp[m-2],ypp[m-2],xpp[m-1],ypp[m-1],xpp[0],ypp[0],
+ ksecCthick2,xpp2[i2],ypp2[i2]);
+ sB1 = new TGeoXtru(2);
+ sB1->SetName("ITS SPD Carbon fiber support Sector Air End B1");
+ sB1->DefinePolygon(i2+1, xpp2, ypp2);
+ sB1->DefineSection(0,sB0->GetZ(0));
+ sB1->DefineSection(1,sB0->GetZ(1)-ksecCthick2);
+ const Double_t kspdEndHoleRadius1=5.698*fgkmm;
+ const Double_t kspdEndHoleRadius2=2.336*fgkmm;
+ const Double_t kspdEndHoleDisplacement=6.29*fgkmm;
+ k = (m-1)/4;
+ for(i=0;i<=k;i++){
+ t= ((Double_t)i)/((Double_t)(k));
+ if(!CFHolePoints(t,kspdEndHoleRadius1,kspdEndHoleRadius2,
+ kspdEndHoleDisplacement,xpp2[i],ypp2[i])){
+ Warning("CarbonFiberSector","CFHolePoints failed "
+ "i=%d m=%d k=%d t=%e",i,m,k,t);
+ } // end if
+ // simitry in each quadrant.
+ xpp2[2*k-i] = -xpp2[i];
+ ypp2[2*k-i] = ypp2[i];
+ xpp2[2*k+i] = -xpp2[i];
+ ypp2[2*k+i] = -ypp2[i];
+ xpp2[4*k-i] = xpp2[i];
+ ypp2[4*k-i] = -ypp2[i];
+ }// end for i
+ //xpp2[m-1] = xpp2[0]; // begining point in
+ //ypp2[m-1] = ypp2[0]; // comment with end point
+ sB2 = new TGeoXtru(2);
+ sB2->SetName("ITS SPD Hole in Carbon fiber support End plate");
+ sB2->DefinePolygon(4*k, xpp2, ypp2);
+ sB2->DefineSection(0,sB1->GetZ(1));
+ sB2->DefineSection(1,sB0->GetZ(1));
+ // SPD sector mount blocks
+ const Double_t kMountBlock[3] = {0.5*(1.8-0.2)*fgkmm,0.5*22.0*fgkmm,
+ 0.5*45.0*fgkmm};
+ sB3 = new TGeoBBox((Double_t*)kMountBlock);
+ // SPD sector cooling tubes
+ sTB0 = new TGeoTube("ITS SPD Cooling Tube End TB0", 0.0,
+ 0.5*ksecCoolTubeROuter,0.5*(sB1->GetZ(1)-sB1->GetZ(0)));
+ sTB1 = new TGeoTube("ITS SPD Cooling Tube End coolant TB0", 0.0,
+ sTB0->GetRmax() - ksecCoolTubeThick,sTB0->GetDz());
+ //
+ if(GetDebug(3)) {
+ if(medSPDcf) medSPDcf->Dump(); else AliInfo("medSPDcf = 0");
+ if(medSPDss) medSPDss->Dump(); else AliInfo("medSPDss = 0");
+ if(medSPDair) medSPDair->Dump(); else AliInfo("medSPDAir = 0");
+ if(medSPDcoolfl) medSPDcoolfl->Dump();else AliInfo("medSPDcoolfl = 0");
+ sA0->InspectShape();
+ sA1->InspectShape();
+ sB0->InspectShape();
+ sB1->InspectShape();
+ sB2->InspectShape();
+ } // end if(GetDebug(3))
+
+ // create the assembly of the support and place staves on it
+ TGeoVolumeAssembly *vM0 = new TGeoVolumeAssembly(
+ "ITSSPDSensitiveVirtualvolumeM0");
+ StavesInSector(vM0);
+ // create other volumes with some graphical settings
+ TGeoVolume *vA0 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorA0",
+ sA0, medSPDcf);
+ vA0->SetVisibility(kTRUE);
+ vA0->SetLineColor(4); // Blue
+ vA0->SetLineWidth(1);
+ vA0->SetFillColor(vA0->GetLineColor());
+ vA0->SetFillStyle(4010); // 10% transparent
+ TGeoVolume *vA1 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorAirA1",
+ sA1, medSPDair);
+ vA1->SetVisibility(kTRUE);
+ vA1->SetLineColor(7); // light Blue
+ vA1->SetLineWidth(1);
+ vA1->SetFillColor(vA1->GetLineColor());
+ vA1->SetFillStyle(4090); // 90% transparent
+ TGeoVolume *vTA0 = new TGeoVolume("ITSSPDCoolingTubeTA0", sTA0, medSPDss);
+ vTA0->SetVisibility(kTRUE);
+ vTA0->SetLineColor(15); // gray
+ vTA0->SetLineWidth(1);
+ vTA0->SetFillColor(vTA0->GetLineColor());
+ vTA0->SetFillStyle(4000); // 0% transparent
+ TGeoVolume *vTA1 = new TGeoVolume("ITSSPDCoolingTubeFluidTA1",
+ sTA1, medSPDcoolfl);
+ vTA1->SetVisibility(kTRUE);
+ vTA1->SetLineColor(6); // Purple
+ vTA1->SetLineWidth(1);
+ vTA1->SetFillColor(vTA1->GetLineColor());
+ vTA1->SetFillStyle(4000); // 0% transparent
+ TGeoVolume *vB0 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndB0",
+ sB0, medSPDcf);
+ vB0->SetVisibility(kTRUE);
+ vB0->SetLineColor(1); // Black
+ vB0->SetLineWidth(1);
+ vB0->SetFillColor(vB0->GetLineColor());
+ vB0->SetFillStyle(4000); // 0% transparent
+ TGeoVolume *vB1 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndAirB1",
+ sB1, medSPDair);
+ vB1->SetVisibility(kTRUE);
+ vB1->SetLineColor(0); // white
+ vB1->SetLineWidth(1);
+ vB1->SetFillColor(vB1->GetLineColor());
+ vB1->SetFillStyle(4100); // 100% transparent
+ TGeoVolume *vB2 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndAirB2",
+ sB2, medSPDair);
+ vB2->SetVisibility(kTRUE);
+ vB2->SetLineColor(0); // white
+ vB2->SetLineWidth(1);
+ vB2->SetFillColor(vB2->GetLineColor());
+ vB2->SetFillStyle(4100); // 100% transparent
+ TGeoVolume *vB3 = new TGeoVolume(
+ "ITSSPDCarbonFiberSupportSectorMountBlockB3",sB3, medSPDcf);
+ vB3->SetVisibility(kTRUE);
+ vB3->SetLineColor(1); // Black
+ vB3->SetLineWidth(1);
+ vB3->SetFillColor(vB3->GetLineColor());
+ vB3->SetFillStyle(4000); // 0% transparent
+ TGeoVolume *vTB0 = new TGeoVolume("ITSSPDCoolingTubeEndTB0",sTB0,medSPDss);
+ vTB0->SetVisibility(kTRUE);
+ vTB0->SetLineColor(15); // gray
+ vTB0->SetLineWidth(1);
+ vTB0->SetFillColor(vTB0->GetLineColor());
+ vTB0->SetFillStyle(4000); // 0% transparent
+ TGeoVolume *vTB1 = new TGeoVolume("ITSSPDCoolingTubeEndFluidTB1",sTB1,
+ medSPDcoolfl);
+ vTB1->SetVisibility(kTRUE);
+ vTB1->SetLineColor(7); // light blue
+ vTB1->SetLineWidth(1);
+ vTB1->SetFillColor(vTB1->GetLineColor());
+ vTB1->SetFillStyle(4050); // 0% transparent
+
+ // add volumes to mother container passed as argument of this method
+ moth->AddNode(vM0,1,0); // Add virtual volume to mother
+ vA0->AddNode(vA1,1,0); // Put air inside carbon fiber.
+ vB0->AddNode(vB1,1,0); // Put air inside carbon fiber ends.
+ vB0->AddNode(vB2,1,0); // Put air wholes inside carbon fiber ends
+ vTA0->AddNode(vTA1,1,0); // Put cooling liquid indide tube middel.
+ vTB0->AddNode(vTB1,1,0); // Put cooling liquid inside tube end.
+ Double_t tubeEndLocal[3]={0.0,0.0,sTA0->GetDz()};
+ for(i = 0; i < ksecNCoolingTubeDips; i++) {
+ x0 = secX3[ksecDipIndex[i]];
+ y0 = secY3[ksecDipIndex[i]];
+ t = 90.0 - secAngleTurbo[i];
+ trans = new TGeoTranslation("",x0,y0,0.5*(sB1->GetZ(0)+sB1->GetZ(1)));
+ vB1->AddNode(vTB0, i+1, trans);
+ // Find location of tube ends for later use.
+ trans->LocalToMaster(tubeEndLocal,fTubeEndSector[0][0][i]);
+ rot = new TGeoRotation("", 0.0, 0.0, t);
+ rotrans = new TGeoCombiTrans("", x0, y0, 0.0, rot);
+ vM0->AddNode(vTA0, i+1, rotrans);
+ } // end for i
+ vM0->AddNode(vA0, 1, 0);
+ vM0->AddNode(vB0, 1, 0);
+ // Reflection.
+ rot = new TGeoRotation("", 90., 0., 90., 90., 180., 0.);
+ vM0->AddNode(vB0,2,rot);
+ // Find location of tube ends for later use.
+ for(i=0;i<ksecNCoolingTubeDips;i++) rot->LocalToMaster(
+ fTubeEndSector[0][0][i],fTubeEndSector[0][1][i]);
+ // left side
+ t = -TMath::RadToDeg()*TMath::ATan2(
+ sB0->GetX(0)-sB0->GetX(sB0->GetNvert()-1),
+ sB0->GetY(0)-sB0->GetY(sB0->GetNvert()-1));
+ rot = new TGeoRotation("",t,0.0,0.0);// z axis rotation
+ x0 = 0.5*(sB0->GetX(0)+sB0->GetX(sB0->GetNvert()-1))+
+ sB3->GetDX()*TMath::Cos(t*TMath::DegToRad());
+ y0 = 0.5*(sB0->GetY(0)+sB0->GetY(sB0->GetNvert()-1))+
+ sB3->GetDX()*TMath::Sin(t*TMath::DegToRad());
+ z0 = sB0->GetZ(0)+sB3->GetDZ();
+ rotrans = new TGeoCombiTrans("",x0,y0,z0,rot);
+ vM0->AddNode(vB3,1,rotrans); // Put Mounting bracket on sector
+ rotrans = new TGeoCombiTrans("",x0,y0,-z0,rot);
+ vM0->AddNode(vB3,2,rotrans); // Put Mounting bracket on sector
+ t *= -1.0;
+ rot = new TGeoRotation("",t,0.0,0.0); // z axis rotation
+
+ x0 = -0.5*(sB0->GetX(0)+sB0->GetX(sB0->GetNvert()-1))-3.5*
+ sB3->GetDX()*TMath::Cos(t*TMath::DegToRad());
+ y0 = 0.5*(sB0->GetY(0)+sB0->GetY(sB0->GetNvert()-1))-3.5*
+ sB3->GetDX()*TMath::Sin(t*TMath::DegToRad());
+ rotrans = new TGeoCombiTrans("",1.01*x0,y0,z0,rot);
+ vM0->AddNode(vB3,3,rotrans); // Put Mounting bracket on sector
+ rotrans = new TGeoCombiTrans("",1.01*x0,y0,-z0,rot);
+ vM0->AddNode(vB3,4,rotrans); // Put Mounting bracket on sector
+ if(GetDebug(3)){
+ vM0->PrintNodes();
+ vA0->PrintNodes();
+ vA1->PrintNodes();
+ vB0->PrintNodes();
+ vB1->PrintNodes();
+ vB2->PrintNodes();
+ vB3->PrintNodes();
+ vTA0->PrintNodes();
+ vTA1->PrintNodes();
+ vTB0->PrintNodes();
+ vTB1->PrintNodes();
+ } // end if(GetDebug(3))
+}
+//______________________________________________________________________
+Bool_t AliITSv11GeometrySPD::CFHolePoints(Double_t s,Double_t r1,
+ Double_t r2,Double_t l,Double_t &x,Double_t &y) const
+{
+ //
+ // Step along arck a distancs ds and compute boundry of
+ // two holes (radius r1 and r2) a distance l apart (along
+ // x-axis).
+ // Inputs:
+ // Double_t s fractional Distance along arcs [0-1]
+ // where 0-> alpha=beta=0, 1-> alpha=90 degrees.
+ // Double_t r1 radius at center circle
+ // Double_t r2 radius of displaced circle
+ // Double_t l Distance displaced circle is displaces (x-axis)
+ // Output:
+ // Double_t x x coordinate along double circle.
+ // Double_t y y coordinate along double circle.
+ // Return:
+ // logical, kFALSE if an error
+ //
+ Double_t alpha,beta;
+ Double_t ac,bc,scb,sca,t,alphac,betac; // at intersection of two circles
+
+ x=y=0.0;
+ ac = r1*r1-l*l-r2*r2;
+ bc = 2.*l*r2;
+ if(bc==0.0) {printf("bc=0 l=%e r2=%e\n",l,r2);return kFALSE;}
+ betac = TMath::ACos(ac/bc);
+ alphac = TMath::Sqrt((bc-ac)*(bc+ac))/(2.*l*r1);
+ scb = r2*betac;
+ sca = r1*alphac;
+ t = r1*0.5*TMath::Pi() - sca + scb;
+ if(s<= scb/t){
+ beta = s*t/r2;
+ x = r2*TMath::Cos(beta) + l;
+ y = r2*TMath::Sin(beta);
+ //printf("betac=%e scb=%e t=%e s=%e beta=%e x=%e y=%e\n",
+ // betac,scb,t,s,beta,x,y);
+ return kTRUE;
+ }else{
+ beta = (s*t-scb+sca)/(r1*0.5*TMath::Pi());
+ alpha = beta*0.5*TMath::Pi();
+ x = r1*TMath::Cos(alpha);
+ y = r1*TMath::Sin(alpha);
+ //printf("alphac=%e sca=%e t=%e s=%e beta=%e alpha=%e x=%e y=%e\n",
+ // alphac,sca,t,s,beta,alpha,x,y);
+ return kTRUE;
+ } // end if
+ return kFALSE;
+}
+//______________________________________________________________________
+Bool_t AliITSv11GeometrySPD::GetSectorMountingPoints(Int_t index,Double_t &x0,
+ Double_t &y0, Double_t &x1, Double_t &y1) const
+{
+ //
+ // Returns the edges of the straight borders in the SPD sector shape,
+ // which are used to mount staves on them.
+ // Coordinate system is that of the carbon fiber sector volume.
+ // ---
+ // Index numbering is as follows:
+ // /5
+ // /\/4
+ // 1\ \/3
+ // 0|___\/2
+ // ---
+ // Arguments [the ones passed by reference contain output values]:
+ // Int_t index --> location index according to above scheme [0-5]
+ // Double_t &x0 --> (by ref) x0 location or the ladder sector [cm]
+ // Double_t &y0 --> (by ref) y0 location of the ladder sector [cm]
+ // Double_t &x1 --> (by ref) x1 location or the ladder sector [cm]
+ // Double_t &y1 --> (by ref) y1 location of the ladder sector [cm]
+ // TGeoManager *mgr --> The TGeo builder
+ // ---
+ // The location is described by a line going from (x0, y0) to (x1, y1)
+ // ---
+ // Returns kTRUE if no problems encountered.
+ // Returns kFALSE if a problem was encountered (e.g.: shape not found).
+ //
+ Int_t isize = fSPDsectorX0.GetSize();
+
+ x0 = x1 = y0 = y1 = 0.0;
+ if(index < 0 || index > isize) {
+ AliError(Form("index = %d: allowed 0 --> %d", index, isize));
+ return kFALSE;
+ } // end if(index<0||index>isize)
+ x0 = fSPDsectorX0[index];
+ x1 = fSPDsectorX1[index];
+ y0 = fSPDsectorY0[index];
+ y1 = fSPDsectorY1[index];
+ return kTRUE;
+}
+//______________________________________________________________________
+void AliITSv11GeometrySPD::SPDsectorShape(Int_t n,const Double_t *xc,
+ const Double_t *yc, const Double_t *r,
+ const Double_t *ths, const Double_t *the,
+ Int_t npr, Int_t &m, Double_t **xp, Double_t **yp) const
+{
+ //
+ // Code to compute the points that make up the shape of the SPD
+ // Carbon fiber support sections
+ // Inputs:
+ // Int_t n size of arrays xc,yc, and r.
+ // Double_t *xc array of x values for radii centers.
+ // Double_t *yc array of y values for radii centers.
+ // Double_t *r array of signed radii values.
+ // Double_t *ths array of starting angles [degrees].
+ // Double_t *the array of ending angles [degrees].
+ // Int_t npr the number of lines segments to aproximate the arc.
+ // Outputs (arguments passed by reference):
+ // Int_t m the number of enetries in the arrays *xp[npr+1]
+ // and *yp[npr+1].
+ // Double_t **xp array of x coordinate values of the line segments
+ // which make up the SPD support sector shape.
+ // Double_t **yp array of y coordinate values of the line segments
+ // which make up the SPD support sector shape.
+ //
+ Int_t i, k;
+ Double_t t, t0, t1;
+
+ m = n*(npr + 1);
+ if(GetDebug(2)) {
+ cout <<" X \t Y \t R \t S \t E" << m << endl;
+ for(i = 0; i < n; i++) {
+ cout << "{" << xc[i] << ", ";
+ cout << yc[i] << ", ";
+ cout << r[i] << ", ";
+ cout << ths[i] << ", ";
+ cout << the[i] << "}, " << endl;
+ } // end for i
+ } // end if(GetDebug(2))
+ if (GetDebug(3)) cout << "Double_t sA0 = [" << n*(npr+1)+1<<"][";
+ if (GetDebug(4)) cout << "3] {";
+ else if(GetDebug(3)) cout <<"2] {";
+ t0 = (Double_t)npr;
+ for(i = 0; i < n; i++) {
+ t1 = (the[i] - ths[i]) / t0;
+ if(GetDebug(5)) cout << "t1 = " << t1 << endl;
+ for(k = 0; k <= npr; k++) {
+ t = ths[i] + ((Double_t)k) * t1;
+ xp[i][k] = TMath::Abs(r[i]) * CosD(t) + xc[i];
+ yp[i][k] = TMath::Abs(r[i]) * SinD(t) + yc[i];
+ if(GetDebug(3)) {
+ cout << "{" << xp[i][k] << "," << yp[i][k];
+ if (GetDebug(4)) cout << "," << t;
+ cout << "},";
+ } // end if GetDebug
+ } // end for k
+ if(GetDebug(3)) cout << endl;
+ } // end of i
+ if(GetDebug(3)) cout << "{" << xp[0][0] << ", " << yp[0][0];
+ if(GetDebug(4)) cout << "," << ths[0];
+ if(GetDebug(3)) cout << "}}" << endl;
+}
+
+//______________________________________________________________________
+TGeoVolume* AliITSv11GeometrySPD::CreateLadder(Int_t layer,TArrayD &sizes,
+ TGeoManager *mgr) const
+{
+ //
+ // Creates the "ladder" = silicon sensor + 5 chips.
+ // Returns a TGeoVolume containing the following components:
+ // - the sensor (TGeoBBox), whose name depends on the layer
+ // - 5 identical chips (TGeoBBox)
+ // - a guard ring around the sensor (subtraction of TGeoBBoxes),
+ // which is separated from the rest of sensor because it is not
+ // a sensitive part
+ // - bump bondings (TGeoBBox stripes for the whole width of the
+ // sensor, one per column).
+ // ---
+ // Arguments:
+ // 1 - the owner layer (MUST be 1 or 2 or a fatal error is raised)
+ // 2 - a TArrayD passed by reference, which will contain relevant
+ // dimensions related to this object:
+ // size[0] = 'thickness' (the smallest dimension)
+ // size[1] = 'length' (the direction along the ALICE Z axis)
+ // size[2] = 'width' (extension in the direction perp. to the
+ // above ones)
+ // 3 - the used TGeoManager
+
+ // ** CRITICAL CHECK **
+ // layer number can be ONLY 1 or 2
+ if (layer != 1 && layer != 2) AliFatal("Layer number MUST be 1 or 2");
+
+ // ** MEDIA **
+ TGeoMedium *medAir = GetMedium("AIR$",mgr);
+ TGeoMedium *medSPDSiChip = GetMedium("SPD SI CHIP$",mgr); // SPD SI CHIP
+ TGeoMedium *medSi = GetMedium("SI$",mgr);
+ TGeoMedium *medBumpBond = GetMedium("COPPER$",mgr); // ??? BumpBond
+
+ // ** SIZES **
+ Double_t chipThickness = fgkmm * 0.150;
+ Double_t chipWidth = fgkmm * 15.950;
+ Double_t chipLength = fgkmm * 13.600;
+ Double_t chipSpacing = fgkmm * 0.400; // separation of chips along Z
+ Double_t sensThickness = fgkmm * 0.200;
+ Double_t sensLength = fgkmm * 69.600;
+ Double_t sensWidth = fgkmm * 12.800;
+ Double_t guardRingWidth = fgkmm * 0.560; // a border of this thickness
+ // all around the sensor
+ Double_t bbLength = fgkmm * 0.042;
+ Double_t bbWidth = sensWidth;
+ Double_t bbThickness = fgkmm * 0.012;
+ Double_t bbPos = 0.080; // Z position w.r. to left pixel edge
+ // compute the size of the container volume which
+ // will also be returned in the referenced TArrayD;
+ // for readability, they are linked by reference to a more meaningful name
+ sizes.Set(3);
+ Double_t &thickness = sizes[0];
+ Double_t &length = sizes[1];
+ Double_t &width = sizes[2];
+ // the container is a box which exactly enclose all the stuff;
+ width = chipWidth;
+ length = sensLength + 2.0*guardRingWidth;
+ thickness = sensThickness + chipThickness + bbThickness;
+
+ // ** VOLUMES **
+ // While creating this volume, since it is a sensitive volume,
+ // we must respect some standard criteria for its local reference frame.
+ // Local X must correspond to x coordinate of the sensitive volume:
+ // this means that we are going to create the container with a local
+ // reference system that is **not** in the middle of the box.
+ // This is accomplished by calling the shape constructor with an
+ // additional option ('originShift'):
+ Double_t xSens = 0.5 * (width - sensWidth - 2.0*guardRingWidth);
+ Double_t originShift[3] = {-xSens, 0., 0.};
+ TGeoBBox *shapeContainer = new TGeoBBox(0.5*width,0.5*thickness,
+ 0.5*length,originShift);
+ // then the volume is made of air, and using this shape
+ TGeoVolume *container = new TGeoVolume(Form("ITSSPDlay%d-Ladder",layer),
+ shapeContainer, medAir);
+ // the chip is a common box
+ TGeoVolume *volChip = mgr->MakeBox("ITSSPDchip",medSPDSiChip,
+ 0.5*chipWidth,0.5*chipThickness,0.5*chipLength);
+ // the sensor as well
+ TGeoVolume *volSens = mgr->MakeBox(GetSenstiveVolumeName(layer),medSi,
+ 0.5*sensWidth,0.5*sensThickness,0.5*sensLength);
+ // the guard ring shape is the subtraction of two boxes with the
+ // same center.
+ TGeoBBox *shIn = new TGeoBBox(0.5*sensWidth,sensThickness,0.5*sensLength);
+ TGeoBBox *shOut = new TGeoBBox(0.5*sensWidth+guardRingWidth,
+ 0.5*sensThickness,0.5*sensLength+guardRingWidth);
+ shIn->SetName("ITSSPDinnerBox");
+ shOut->SetName("ITSSPDouterBox");
+ TGeoCompositeShape *shBorder = new TGeoCompositeShape(
+ "ITSSPDgaurdRingBorder",Form("%s-%s",shOut->GetName(),shIn->GetName()));
+ TGeoVolume *volBorder = new TGeoVolume("ITSSPDgaurdRing",shBorder,medSi);
+ // bump bonds for one whole column
+ TGeoVolume *volBB = mgr->MakeBox("ITSSPDbb",medBumpBond,0.5*bbWidth,
+ 0.5*bbThickness,0.5*bbLength);
+ // set colors of all objects for visualization
+ volSens->SetLineColor(kYellow + 1);
+ volChip->SetLineColor(kGreen);
+ volBorder->SetLineColor(kYellow + 3);
+ volBB->SetLineColor(kGray);
+
+ // ** MOVEMENTS **
+ // sensor is translated along thickness (X) and width (Y)
+ Double_t ySens = 0.5 * (thickness - sensThickness);
+ Double_t zSens = 0.0;
+ // we want that the x of the ladder is the same as the one of
+ // its sensitive volume
+ TGeoTranslation *trSens = new TGeoTranslation(0.0, ySens, zSens);
+ // bump bonds are translated along all axes:
+ // keep same Y used for sensors, but change the Z
+ TGeoTranslation *trBB[160];
+ Double_t x = 0.0;
+ Double_t y = 0.5 * (thickness - bbThickness) - sensThickness;
+ Double_t z = -0.5 * sensLength + guardRingWidth + fgkmm*0.425 - bbPos;
+ Int_t i;
+ for (i = 0; i < 160; i++) {
+ trBB[i] = new TGeoTranslation(x, y, z);
+ switch(i) {
+ case 31:case 63:case 95:case 127:
+ z += fgkmm * 0.625 + fgkmm * 0.2;
+ break;
+ default:
+ z += fgkmm * 0.425;
+ } // end switch
+ } // end for i
+ // the chips are translated along the length (Z) and thickness (X)
+ TGeoTranslation *trChip[5] = {0, 0, 0, 0, 0};
+ x = -xSens;
+ y = 0.5 * (chipThickness - thickness);
+ z = 0.0;
+ for (i = 0; i < 5; i++) {
+ z = -0.5*length + guardRingWidth
+ + (Double_t)i*chipSpacing + ((Double_t)(i) + 0.5)*chipLength;
+ trChip[i] = new TGeoTranslation(x, y, z);
+ } // end ofr i
+
+ // add nodes to container
+ container->AddNode(volSens, 1, trSens);
+ container->AddNode(volBorder, 1, trSens);
+ for (i = 0; i < 160; i++) container->AddNode(volBB,i+1,trBB[i]);
+ for (i = 0; i < 5; i++) container->AddNode(volChip,i+3,trChip[i]);
+ // return the container
+ return container;
+}
+
+//______________________________________________________________________
+TGeoVolume* AliITSv11GeometrySPD::CreateClip(TArrayD &sizes,Bool_t isDummy,
+ TGeoManager *mgr) const
+{
+ //
+ // Creates the carbon fiber clips which are added to the central ladders.
+ // They have a complicated shape which is approximated by a TGeoXtru
+ // Implementation of a single clip over an half-stave.
+ // It has a complicated shape which is approximated to a section like this:
+ //
+ // 6
+ // /\ .
+ // 7 //\\ 5
+ // / 1\\___________________4
+ // 0 \___________________
+ // 2 3
+ // with a finite thickness for all the shape
+ // Its local reference frame is such that point A corresponds to origin.
+ //
+
+ // MODIFIED geometry
+ Double_t sposty = fgkmm * -0.5; // lower internal side to avoid overlaps with modified geometry
+
+ Double_t fullLength = fgkmm * 12.6; // = x4 - x0
+ Double_t flatLength = fgkmm * 5.4; // = x4 - x3
+ Double_t inclLongLength = fgkmm * 5.0; // = 5-6
+ Double_t inclShortLength = fgkmm * 2.0; // = 6-7
+ Double_t fullHeight = fgkmm * 2.8; // = y6 - y3
+ Double_t thickness = fgkmm * 0.18; // thickness
+ Double_t totalLength = fgkmm * 52.0; // total length in Z
+ Double_t holeSize = fgkmm * 5.0; // dimension of cubic
+ // hole inserted for pt1000
+ Double_t angle1 = 27.0; // supplementary of angle DCB
+ Double_t angle2; // angle DCB
+ Double_t angle3; // angle of GH with vertical
+
+ angle2 = 0.5 * (180.0 - angle1);
+ angle3 = 90.0 - TMath::ACos(fullLength - flatLength -
+ inclLongLength*TMath::Cos(angle1)) *
+ TMath::RadToDeg();
+ angle1 *= TMath::DegToRad();
+ angle2 *= TMath::DegToRad();
+ angle3 *= TMath::DegToRad();
+
+ Double_t x[8], y[8];
+
+ x[0] = 0.0;
+ x[1] = x[0] + fullLength - flatLength - inclLongLength*TMath::Cos(angle1);
+ x[2] = x[0] + fullLength - flatLength;
+ x[3] = x[0] + fullLength;
+ x[4] = x[3];
+ x[5] = x[4] - flatLength + thickness * TMath::Cos(angle2);
+ x[6] = x[1];
+ x[7] = x[0];
+
+ y[0] = 0.0;
+ y[1] = y[0] + inclShortLength * TMath::Cos(angle3);
+ y[2] = y[1] - inclLongLength * TMath::Sin(angle1);
+ y[3] = y[2];
+ y[4] = y[3] + thickness;
+ y[5] = y[4];
+ y[6] = y[1] + thickness;
+ y[7] = y[0] + thickness;
+
+ y[0] += sposty;
+ y[7] += sposty;
+
+ sizes.Set(7);
+ sizes[0] = totalLength;
+ sizes[1] = fullHeight;
+ sizes[2] = y[2];
+ sizes[3] = y[6];
+ sizes[4] = x[0];
+ sizes[5] = x[3];
+ sizes[6] = x[2];
+
+ if(isDummy){// use this argument when on ewant just the
+ // positions without create any volume
+ return NULL;
+ } // end if isDummy
+
+ TGeoXtru *shClip = new TGeoXtru(2);
+ shClip->SetName("ITSSPDshclip");
+ shClip->DefinePolygon(8, x, y);
+ shClip->DefineSection(0, -0.5*totalLength, 0., 0., 1.0);
+ shClip->DefineSection(1, 0.5*totalLength, 0., 0., 1.0);
+
+ TGeoBBox *shHole = new TGeoBBox("ITSSPDSHClipHole",0.5*holeSize,
+ 0.5*holeSize,0.5*holeSize);
+ TGeoTranslation *tr1 = new TGeoTranslation("ITSSPDTRClipHole1",x[2],0.0,
+ fgkmm*14.);
+ TGeoTranslation *tr2 = new TGeoTranslation("ITSSPDTRClipHole2",x[2],0.0,
+ 0.0);
+ TGeoTranslation *tr3 = new TGeoTranslation("ITSSPDTRClipHole3",x[2],0.0,
+ -fgkmm*14.);
+ tr1->RegisterYourself();
+ tr2->RegisterYourself();
+ tr3->RegisterYourself();
+
+ //TString strExpr("ITSSPDshclip-(");
+ TString strExpr(shClip->GetName());
+ strExpr.Append("-(");
+ strExpr.Append(Form("%s:%s+", shHole->GetName(), tr1->GetName()));
+ strExpr.Append(Form("%s:%s+", shHole->GetName(), tr2->GetName()));
+ strExpr.Append(Form("%s:%s)", shHole->GetName(), tr3->GetName()));
+ TGeoCompositeShape *shClipHole = new TGeoCompositeShape(
+ "ITSSPDSHClipHoles",strExpr.Data());
+
+ TGeoMedium *mat = GetMedium("SPD C (M55J)$", mgr);
+ TGeoVolume *vClip = new TGeoVolume("ITSSPDclip", shClipHole, mat);
+ vClip->SetLineColor(kGray + 2);
+ return vClip;
+}
+
+//______________________________________________________________________
+TGeoVolume* AliITSv11GeometrySPD::CreatePatchPanel(TArrayD &sizes,
+ TGeoManager *mgr) const
+{
+ //
+ // Creates the patch panel approximated with a "L"-shaped TGeoXtru
+ // with a finite thickness for all the shape
+ // Its local reference frame is such that point A corresponds to origin.
+ //
+ Double_t hLength = fgkmm * 50.0; // horizontal length
+ Double_t vLength = fgkmm * 50.0; // vertical length
+ Double_t angle = 88.3; // angle between hor and vert
+ Double_t thickness = fgkmm * 4.0; // thickness
+ Double_t width = fgkmm * 100.0; // width looking from cone
+
+ Double_t x[7], y[7];
+
+ y[0] = 0.0;
+ y[1] = y[0] + hLength;
+ y[2] = y[1];
+ y[3] = y[0] + thickness;
+ y[4] = y[3] + vLength * TMath::Cos(angle*TMath::DegToRad());
+ y[5] = y[4] - thickness / TMath::Sin(angle*TMath::DegToRad());
+ y[6] = y[0];
+
+ x[0] = 0.0;
+ x[1] = x[0];
+ x[2] = x[1] + thickness;
+ x[3] = x[2];
+ x[4] = x[3] + vLength * TMath::Sin(angle*TMath::DegToRad());
+ x[5] = x[4];
+ x[6] = x[0] + thickness;
+
+ sizes.Set(3);
+ sizes[0] = hLength;
+ sizes[1] = vLength;
+ sizes[2] = thickness;
+
+ TGeoXtru *shPatch = new TGeoXtru(2);
+ shPatch->SetName("ITSSPDpatchShape1");
+ shPatch->DefinePolygon(7, x, y);
+ shPatch->DefineSection(0, -0.5*width, 0., 0., 1.0);
+ shPatch->DefineSection(1, 0.5*width, 0., 0., 1.0);
+
+ /*
+ Double_t subThickness = 10.0 * fgkmm;
+ Double_t subWidth = 55.0 * fgkmm;
+ new TGeoBBox("ITSSPDpatchShape2", 0.5*subThickness, 60.0 * fgkmm, 0.5*subWidth);
+ TGeoRotation *rotSub = new TGeoRotation(*gGeoIdentity);
+ rotSub->SetName("shPatchSubRot");
+ rotSub->RotateZ(50.0);
+ rotSub->RegisterYourself();
+ TGeoCombiTrans *trSub = new TGeoCombiTrans(0.26*hLength, 0.26*vLength, 0.0, rotSub);
+ trSub->SetName("shPatchSubTr");
+ trSub->RegisterYourself();
+
+ TGeoCompositeShape *shPatchFinal = new TGeoCompositeShape("ITSSPDpatchShape1-(ITSSPDpatchShape2:shPatchSubTr)");
+ */
+
+ TGeoMedium *mat = GetMedium("AL$", mgr);
+ //TGeoVolume *vPatch = new TGeoVolume("ITSSPDpatchPanel", shPatchFinal, mat);
+ TGeoVolume *vPatch = new TGeoVolume("ITSSPDpatchPanel", shPatch, mat);
+ vPatch->SetLineColor(kAzure);
+
+ return vPatch;
+}
+
+//___________________________________________________________________
+TGeoCompositeShape* AliITSv11GeometrySPD::CreateGroundingFoilShape
+ (Int_t itype,Double_t &length,Double_t &width,
+ Double_t thickness,TArrayD &sizes)
+{
+ //
+ // Creates the typical composite shape of the grounding foil:
+ //
+ // +---------------------------------------------------------+
+ // | 5 6 9 |
+ // | +-----------+ +------------+ 10
+ // | O | | |
+ // | 3 /-----+ 4 +------+
+ // | 1 / 7 8
+ // | /----------/
+ // +-----/ 2 +
+ // 0
+ // Z + 11
+ //
+ // This shape is used 4 times: two layers of glue, one in kapton
+ // and one in aluminum, taking into account that the aliminum
+ // layer has small differences in the size of some parts.
+ // ---
+ // In order to overcome problems apparently due to a large number
+ // of points, the shape creation is done according the following
+ // steps:
+ // 1) a TGeoBBox is created with a size right enough to contain
+ // the whole shape (0-1-X-13)
+ // 2) holes are defined as other TGeoBBox which are subtracted
+ // from the main shape
+ // 3) a TGeoXtru is defined connecting the points (0-->11-->0)
+ // and is also subtracted from the main shape
+ // ---
+ // The argument ("type") is used to choose between all these
+ // possibilities:
+ // - type = 0 --> kapton layer
+ // - type = 1 --> aluminum layer
+ // - type = 2 --> glue layer between support and GF
+ // - type = 3 --> glue layer between GF and ladders
+ // Returns: a TGeoCompositeShape which will then be used to shape
+ // several volumes. Since TGeoXtru is used, the local reference
+ // frame of this object has X horizontal and Y vertical w.r to
+ // the shape drawn above, and Z axis going perpendicularly to the screen.
+ // This is not the correct reference for the half stave, for which
+ // the "long" dimension is Z and the "short" is X, while Y goes in
+ // the direction of thickness. This will imply some rotations when
+ // using the volumes created with this shape.
+
+ // suffix to differentiate names
+ Char_t type[10];
+
+ // size of the virtual box containing exactly this volume
+ length = fgkmm * 243.18;
+ width = fgkmm * 15.95;
+ if (itype == 1) {
+ length -= fgkmm * 0.4;
+ width -= fgkmm * 0.4;
+ } // end if itype==1
+ switch (itype) {
+ case 0:
+ snprintf(type,10,"Kap");
+ break;
+ case 1:
+ snprintf(type,10, "Alu");
+ break;
+ case 2:
+ snprintf(type,10,"Glue1");
+ break;
+ case 3:
+ snprintf(type,10,"Glue2");
+ break;
+ }
+ // we divide the shape in several slices along the horizontal
+ // direction (local X) here we define define the length of all
+ // sectors (from leftmost to rightmost)
+ Int_t i;
+ Double_t sliceLength[] = { 140.71, 2.48, 26.78, 4.00,
+ 10.00, 24.40, 10.00, 24.81 };
+ for (i = 0; i < 8; i++) sliceLength[i] *= fgkmm;
+ if (itype == 1) {
+ sliceLength[0] -= fgkmm * 0.2;
+ sliceLength[4] -= fgkmm * 0.2;
+ sliceLength[5] += fgkmm * 0.4;
+ sliceLength[6] -= fgkmm * 0.4;
+ } // end if itype ==1
+
+ // as shown in the drawing, we have four different widths
+ // (along local Y) in this shape:
+ Double_t widthMax = fgkmm * 15.95;
+ Double_t widthMed1 = fgkmm * 15.00;
+ Double_t widthMed2 = fgkmm * 11.00;
+ Double_t widthMin = fgkmm * 4.40;
+ if (itype == 1) {
+ widthMax -= fgkmm * 0.4;
+ widthMed1 -= fgkmm * 0.4;
+ widthMed2 -= fgkmm * 0.4;
+ widthMin -= fgkmm * 0.4;
+ } // end if itype==1
+
+ // create the main shape
+ TGeoBBox *shGroundFull = 0;
+ shGroundFull = new TGeoBBox(Form("ITSSPDSHgFoil%sFull", type),
+ 0.5*length,0.5*width, 0.5*thickness);
+
+ if(GetDebug(5)) shGroundFull->Print(); // Avoid Coverity warning
+
+ // create the polygonal shape to be subtracted to give the correct
+ // shape to the borders its vertices are defined in sugh a way that
+ // this polygonal will be placed in the correct place considered
+ // that the origin of the local reference frame is in the center
+ // of the main box: we fix the starting point at the lower-left
+ // edge of the shape (point 12), and add all points in order,
+ // following a clockwise rotation
+
+ Double_t x[13], y[13];
+ x[ 0] = -0.5 * length + sliceLength[0];
+ y[ 0] = -0.5 * widthMax;
+
+ x[ 1] = x[0] + sliceLength[1];
+ y[ 1] = y[0] + (widthMax - widthMed1);
+
+ x[ 2] = x[1] + sliceLength[2];
+ y[ 2] = y[1];
+
+ x[ 3] = x[2] + sliceLength[3];
+ y[ 3] = y[2] + (widthMed1 - widthMed2);
+
+ x[ 4] = x[3] + sliceLength[4];
+ y[ 4] = y[3];
+
+ x[ 5] = x[4];
+ y[ 5] = y[4] + (widthMed2 - widthMin);
+
+ x[ 6] = x[5] + sliceLength[5];
+ y[ 6] = y[5];
+
+ x[ 7] = x[6];
+ y[ 7] = y[4];
+
+ x[ 8] = x[7] + sliceLength[6];
+ y[ 8] = y[7];
+
+ x[ 9] = x[8];
+ y[ 9] = y[6];
+
+ x[10] = x[9] + sliceLength[7] + 0.5;
+ y[10] = y[9];
+
+ x[11] = x[10];
+ y[11] = y[0] - 0.5;
+
+ x[12] = x[0];
+ y[12] = y[11];
+
+ // create the shape
+ TGeoXtru *shGroundXtru = new TGeoXtru(2);
+ shGroundXtru->SetName(Form("ITSSPDSHgFoil%sXtru", type));
+ shGroundXtru->DefinePolygon(13, x, y);
+ shGroundXtru->DefineSection(0, -thickness, 0., 0., 1.0);
+ shGroundXtru->DefineSection(1, thickness, 0., 0., 1.0);
+
+ // define a string which will express the algebric operations among volumes
+ // and add the subtraction of this shape from the main one
+ TString strComposite(Form("ITSSPDSHgFoil%sFull-(%s+", type,
+ shGroundXtru->GetName()));
+
+ // define the holes according to size information coming from drawings:
+ Double_t holeLength = fgkmm * 10.00;
+ Double_t holeWidth = fgkmm * 7.50;
+ Double_t holeSepX0 = fgkmm * 7.05; // separation between center
+ // of first hole and left border
+ Double_t holeSepXC = fgkmm * 14.00; // separation between the centers
+ // of two consecutive holes
+ Double_t holeSepX1 = fgkmm * 15.42; // separation between centers of
+ // 5th and 6th hole
+ Double_t holeSepX2 = fgkmm * 22.00; // separation between centers of
+ // 10th and 11th hole
+ if (itype == 1) {
+ holeSepX0 -= fgkmm * 0.2;
+ holeLength += fgkmm * 0.4;
+ holeWidth += fgkmm * 0.4;
+ } // end if itype==1
+ sizes.Set(7);
+ sizes[0] = holeLength;
+ sizes[1] = holeWidth;
+ sizes[2] = holeSepX0;
+ sizes[3] = holeSepXC;
+ sizes[4] = holeSepX1;
+ sizes[5] = holeSepX2;
+ sizes[6] = fgkmm * 4.40;
+
+ // X position of hole center (will change for each hole)
+ Double_t holeX = -0.5*length;
+ // Y position of center of all holes (= 4.4 mm from upper border)
+ Double_t holeY = 0.5*(width - holeWidth) - widthMin;
+
+ // create a shape for the holes (common)
+ new TGeoBBox(Form("ITSSPD%sGfoilHole", type),0.5*holeLength,
+ 0.5*holeWidth, thickness);
+
+ // insert the holes in the XTRU shape:
+ // starting from the first value of X, they are simply
+ // shifted along this axis
+ char name[200];
+ TGeoTranslation *transHole[11];
+ for (i = 0; i < 11; i++) {
+ // set the position of the hole, depending on index
+ if (i == 0) {
+ holeX += holeSepX0;
+ }else if (i < 5) {
+ holeX += holeSepXC;
+ }else if (i == 5) {
+ holeX += holeSepX1;
+ }else if (i < 10) {
+ holeX += holeSepXC;
+ }else {
+ holeX += holeSepX2;
+ } // end if else if's
+ //cout << i << " --> X = " << holeX << endl;
+ snprintf(name,200,"ITSSPDTRgFoil%sHole%d", type, i);
+ transHole[i] = new TGeoTranslation(name, holeX, holeY, 0.0);
+ transHole[i]->RegisterYourself();
+ strComposite.Append(Form("ITSSPD%sGfoilHole:%s", type, name));
+ if (i < 10) strComposite.Append("+"); else strComposite.Append(")");
+ } // end for i
+
+ // create composite shape
+ TGeoCompositeShape *shGround = new TGeoCompositeShape(
+ Form("ITSSPDSHgFoil%s", type), strComposite.Data());
+
+ return shGround;
+}
+//______________________________________________________________________
+TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateGroundingFoil(Bool_t isRight,
+ TArrayD &sizes, TGeoManager *mgr)
+{
+ //
+ // Create a volume containing all parts of the grounding foil a
+ // for a half-stave.
+ // It consists of 4 layers with the same shape but different thickness:
+ // 1) a layer of glue
+ // 2) the aluminum layer
+ // 3) the kapton layer
+ // 4) another layer of glue
+ // ---
+ // Arguments:
+ // 1: a boolean value to know if it is the grounding foir for
+ // the right or left side
+ // 2: a TArrayD which will contain the dimension of the container box:
+ // - size[0] = length along Z (the beam line direction)
+ // - size[1] = the 'width' of the stave, which defines, together
+ // with Z, the plane of the carbon fiber support
+ // - size[2] = 'thickness' (= the direction along which all
+ // stave components are superimposed)
+ // 3: the TGeoManager
+ // ---
+ // The return value is a TGeoBBox volume containing all grounding
+ // foil components.
+ // to avoid strange behaviour of the geometry manager,
+ // create a suffix to be used in the names of all shapes
+ //
+ char suf[5];
+ if (isRight) strncpy(suf, "R", 5); else strncpy(suf, "L", 5);
+ // this volume will be created in order to ease its placement in
+ // the half-stave; then, it is added here the small distance of
+ // the "central" edge of each volume from the Z=0 plane in the stave
+ // reference (which coincides with ALICE one)
+ Double_t dist = fgkmm * 0.71;
+
+ // define materials
+ TGeoMedium *medKap = GetMedium("SPD KAPTON(POLYCH2)$", mgr);
+ TGeoMedium *medAlu = GetMedium("AL$", mgr);
+ TGeoMedium *medGlue = GetMedium("EPOXY$", mgr); //??? GLUE_GF_SUPPORT
+
+ // compute the volume shapes (thicknesses change from one to the other)
+ Double_t kpLength, kpWidth, alLength, alWidth;
+ TArrayD kpSize, alSize, glSize;
+ Double_t kpThickness = fgkmm * 0.04;
+ Double_t alThickness = fgkmm * 0.01;
+//cout << "AL THICKNESS" << alThickness << endl;
+ //Double_t g0Thickness = fgkmm * 0.1175 - fgkGapHalfStave;
+ //Double_t g1Thickness = fgkmm * 0.1175 - fgkGapLadder;
+ Double_t g0Thickness = fgkmm * 0.1275 - fgkGapHalfStave;
+ Double_t g1Thickness = fgkmm * 0.1275 - fgkGapLadder;
+ TGeoCompositeShape *kpShape = CreateGroundingFoilShape(0,kpLength,kpWidth,
+ kpThickness, kpSize);
+ TGeoCompositeShape *alShape = CreateGroundingFoilShape(1,alLength,alWidth,
+ alThickness, alSize);
+ TGeoCompositeShape *g0Shape = CreateGroundingFoilShape(2,kpLength,kpWidth,
+ g0Thickness, glSize);
+ TGeoCompositeShape *g1Shape = CreateGroundingFoilShape(3,kpLength,kpWidth,
+ g1Thickness, glSize);
+ // create the component volumes and register their sizes in the
+ // passed arrays for readability reasons, some reference variables
+ // explicit the meaning of the array slots
+ TGeoVolume *kpVol = new TGeoVolume(Form("ITSSPDgFoilKap%s",suf),
+ kpShape, medKap);
+ TGeoVolume *alVol = new TGeoVolume(Form("ITSSPDgFoilAlu%s",suf),
+ alShape, medAlu);
+ TGeoVolume *g0Vol = new TGeoVolume(Form("ITSSPDgFoilGlue%s",suf),
+ g0Shape, medGlue);
+ TGeoVolume *g1Vol = new TGeoVolume(Form("ITSSPDgFoilGlue%s",suf),
+ g1Shape, medGlue);
+ // set colors for the volumes
+ kpVol->SetLineColor(kRed);
+ alVol->SetLineColor(kGray);
+ g0Vol->SetLineColor(kYellow);
+ g1Vol->SetLineColor(kYellow);
+ // create references for the final size object
+ if (sizes.GetSize() != 3) sizes.Set(3);
+ Double_t &fullThickness = sizes[0];
+ Double_t &fullLength = sizes[1];
+ Double_t &fullWidth = sizes[2];
+ // kapton leads the larger dimensions of the foil
+ // (including the cited small distance from Z=0 stave reference plane)
+ // the thickness is the sum of the ones of all components
+ fullLength = kpLength + dist;
+ fullWidth = kpWidth;
+ fullThickness = kpThickness + alThickness + g0Thickness + g1Thickness;
+ // create the container
+// TGeoMedium *air = GetMedium("AIR$", mgr);
+ TGeoVolumeAssembly *container = new TGeoVolumeAssembly(Form("ITSSPDgFOIL-%s",suf));
+// TGeoVolume *container = mgr->MakeBox(Form("ITSSPDgFOIL-%s",suf),
+// air, 0.5*fullThickness, 0.5*fullWidth, 0.5*fullLength);
+ // create the common correction rotation (which depends of what side
+ // we are building)
+ TGeoRotation *rotCorr = new TGeoRotation(*gGeoIdentity);
+ if (isRight) rotCorr->RotateY(90.0);
+ else rotCorr->RotateY(-90.0);
+ // compute the translations, which are in the length and
+ // thickness directions
+ Double_t x, y, z, shift = 0.0;
+ if (isRight) shift = dist;
+ // glue (bottom)
+ x = -0.5*(fullThickness - g0Thickness);
+ z = 0.5*(fullLength - kpLength) - shift;
+ TGeoCombiTrans *glTrans0 = new TGeoCombiTrans(x, 0.0, z, rotCorr);
+ // kapton
+ x += 0.5*(g0Thickness + kpThickness);
+ TGeoCombiTrans *kpTrans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
+ // aluminum
+ x += 0.5*(kpThickness + alThickness);
+ z = 0.5*(fullLength - alLength) - shift - 0.5*(kpLength - alLength);
+ TGeoCombiTrans *alTrans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
+ // glue (top)
+ x += 0.5*(alThickness + g1Thickness);
+ z = 0.5*(fullLength - kpLength) - shift;
+ TGeoCombiTrans *glTrans1 = new TGeoCombiTrans(x, 0.0, z, rotCorr);
+
+ //cout << fgkGapHalfStave << endl;
+ //cout << g0Thickness << endl;
+ //cout << kpThickness << endl;
+ //cout << alThickness << endl;
+ //cout << g1Thickness << endl;
+
+ // add to container
+ container->SetLineColor(kMagenta-10);
+ container->AddNode(kpVol, 1, kpTrans);
+ container->AddNode(alVol, 1, alTrans);
+ container->AddNode(g0Vol, 1, glTrans0);
+ container->AddNode(g1Vol, 2, glTrans1);
+ // to add the grease we remember the sizes of the holes, stored as
+ // additional parameters in the kapton layer size:
+ // - sizes[3] = hole length
+ // - sizes[4] = hole width
+ // - sizes[5] = position of first hole center
+ // - sizes[6] = standard separation between holes
+ // - sizes[7] = separation between 5th and 6th hole
+ // - sizes[8] = separation between 10th and 11th hole
+ // - sizes[9] = separation between the upper hole border and
+ // the foil border
+ Double_t holeLength = kpSize[0];
+ Double_t holeWidth = kpSize[1];
+ Double_t holeFirstZ = kpSize[2];
+ Double_t holeSepZ = kpSize[3];
+ Double_t holeSep5th6th = kpSize[4];
+ Double_t holeSep10th11th = kpSize[5];
+ Double_t holeSepY = kpSize[6];
+ // volume (common)
+ // Grease has not been defined to date. Need much more information
+ // no this material!
+ TGeoMedium *grease = GetMedium("SPD KAPTON(POLYCH2)$", mgr); // ??? GREASE
+ TGeoVolume *hVol = mgr->MakeBox("ITSSPDGrease", grease,
+ 0.5*fullThickness, 0.5*holeWidth, 0.5*holeLength);
+ hVol->SetLineColor(kBlue);
+ // displacement of volumes in the container
+ Int_t idx = 1; // copy numbers start from 1.
+ x = 0.0;
+ y = 0.5*(fullWidth - holeWidth) - holeSepY;
+ if (isRight) z = holeFirstZ - 0.5*fullLength + dist;
+ else z = 0.5*fullLength - holeFirstZ - dist;
+ for (Int_t i = 0; i < 11; i++) {
+ TGeoTranslation *t = 0;
+ t = new TGeoTranslation(x, y, -z);
+ container->AddNode(hVol, idx++, t);
+ if (i < 4) shift = holeSepZ;
+ else if (i == 4) shift = holeSep5th6th;
+ else if (i < 9) shift = holeSepZ;
+ else shift = holeSep10th11th;
+ if (isRight) z += shift;
+ else z -= shift;
+ } // end for i
+ return container;
+}
+//___________________________________________________________________
+TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateMCM(Bool_t isRight,
+ TArrayD &sizes, TGeoManager *mgr) const
+{
+ //
+ // Create a TGeoAssembly containing all the components of the MCM.
+ // The TGeoVolume container is rejected due to the possibility of overlaps
+ // when placing this object on the carbon fiber sector.
+ // The assembly contains:
+ // - the thin part of the MCM (integrated circuit)
+ // - the MCM chips (specifications from EDMS)
+ // - the cap which covers the zone where chips are bound to MCM
+ // ---
+ // The local reference frame of this assembly is defined in such a way
+ // that all volumes are contained in a virtual box whose center
+ // is placed exactly in the middle of the occupied space w.r to all
+ // directions. This will ease the positioning of this object in the
+ // half-stave. The sizes of this virtual box are stored in
+ // the array passed by reference.
+ // ---
+ // Arguments:
+ // - a boolean flag to know if this is the "left" or "right" MCM, when
+ // looking at the stave from above (i.e. the direction from which
+ // one sees bus over ladders over grounding foil) and keeping the
+ // continuous border in the upper part, one sees the thicker part
+ // on the left or right.
+ // - an array passed by reference which will contain the size of
+ // the virtual container.
+ // - a pointer to the used TGeoManager.
+ //
+
+ // to distinguish the "left" and "right" objects, a suffix is created
+ char suf[5];
+ if (isRight) strncpy(suf, "R", 5); else strncpy(suf, "L", 5);
+
+ // ** MEDIA **
+ TGeoMedium *medBase = GetMedium("SPD KAPTON(POLYCH2)$",mgr);// ??? MCM BASE
+ TGeoMedium *medChip = GetMedium("SPD SI CHIP$",mgr);
+ TGeoMedium *medCap = GetMedium("AL$",mgr);
+
+ // The shape of the MCM is divided into 3 sectors with different
+ // widths (Y) and lengths (X), like in this sketch:
+ //
+ // 0 1 2
+ // +---------------------+-----------------------------------+
+ // | 4 sect 2 |
+ // | 6 sect 1 /-------------------+
+ // | sect 0 /--------------/ 3
+ // +--------------------/ 5
+ // 8 7
+ //
+ // the inclination of all oblique borders (6-7, 4-5) is always 45 degrees.
+ // From drawings we can parametrize the dimensions of all these sectors,
+ // then the shape of this part of the MCM is implemented as a
+ // TGeoXtru centerd in the virtual XY space.
+ // The first step is definig the relevant sizes of this shape:
+ Int_t i, j;
+ Double_t mcmThickness = fgkmm * 0.35;
+ Double_t sizeXtot = fgkmm * 105.6; // total distance (0-2)
+ // resp. 7-8, 5-6 and 3-4
+ Double_t sizeXsector[3] = {fgkmm * 28.4, fgkmm * 41.4, fgkmm * 28.8};
+ // resp. 0-8, 1-6 and 2-3
+ Double_t sizeYsector[3] = {fgkmm * 15.0, fgkmm * 11.0, fgkmm * 8.0};
+ Double_t sizeSep01 = fgkmm * 4.0; // x(6)-x(7)
+ Double_t sizeSep12 = fgkmm * 3.0; // x(4)-x(5)
+
+ // define sizes of chips (last is the thickest)
+ Double_t chipLength[5] = { 4.00, 6.15, 3.85, 5.60, 18.00 };
+ Double_t chipWidth[5] = { 3.00, 4.10, 3.85, 5.60, 5.45 };
+ Double_t chipThickness[5] = { 0.60, 0.30, 0.30, 1.00, 1.20 };
+ TString name[5];
+ name[0] = "ITSSPDanalog";
+ name[1] = "ITSSPDpilot";
+ name[2] = "ITSSPDgol";
+ name[3] = "ITSSPDrx40";
+ name[4] = "ITSSPDoptical";
+ Color_t color[5] = { kCyan, kGreen, kYellow, kBlue, kOrange };
+
+ // define the sizes of the cover
+ Double_t capThickness = fgkmm * 0.3;
+ Double_t capHeight = fgkmm * 1.7;
+
+ // compute the total size of the virtual container box
+ sizes.Set(3);
+ Double_t &thickness = sizes[0];
+ Double_t &length = sizes[1];
+ Double_t &width = sizes[2];
+ length = sizeXtot;
+ width = sizeYsector[0];
+ thickness = mcmThickness + capHeight;
+
+ // define all the relevant vertices of the polygon
+ // which defines the transverse shape of the MCM.
+ // These values are used to several purposes, and
+ // for each one, some points must be excluded
+ Double_t xRef[9], yRef[9];
+ xRef[0] = -0.5*sizeXtot;
+ yRef[0] = 0.5*sizeYsector[0];
+ xRef[1] = xRef[0] + sizeXsector[0] + sizeSep01;
+ yRef[1] = yRef[0];
+ xRef[2] = -xRef[0];
+ yRef[2] = yRef[0];
+ xRef[3] = xRef[2];
+ yRef[3] = yRef[2] - sizeYsector[2];
+ xRef[4] = xRef[3] - sizeXsector[2];
+ yRef[4] = yRef[3];
+ xRef[5] = xRef[4] - sizeSep12;
+ yRef[5] = yRef[4] - sizeSep12;
+ xRef[6] = xRef[5] - sizeXsector[1];
+ yRef[6] = yRef[5];
+ xRef[7] = xRef[6] - sizeSep01;
+ yRef[7] = yRef[6] - sizeSep01;
+ xRef[8] = xRef[0];
+ yRef[8] = -yRef[0];
+
+ // the above points are defined for the "right" MCM (if ve view the
+ // stave from above) in order to change to the "left" one, we must
+ // change the sign to all X values:
+ if (isRight) for (i = 0; i < 9; i++) xRef[i] = -xRef[i];
+
+ // the shape of the MCM and glue layer are done excluding point 1,
+ // which is not necessary and cause the geometry builder to get confused
+ j = 0;
+ Double_t xBase[8], yBase[8];
+ for (i = 0; i < 9; i++) {
+ if (i == 1) continue;
+ xBase[j] = xRef[i];
+ yBase[j] = yRef[i];
+ j++;
+ } // end for i
+
+ // the MCM cover is superimposed over the zones 1 and 2 only
+ Double_t xCap[6], yCap[6];
+ j = 0;
+ for (i = 1; i <= 6; i++) {
+ xCap[j] = xRef[i];
+ yCap[j] = yRef[i];
+ j++;
+ } // end for i
+
+ // define positions of chips,
+ // which must be added to the bottom-left corner of MCM
+ // and divided by 1E4;
+ Double_t chipX[5], chipY[5];
+ if (isRight) {
+ chipX[0] = 666320.;
+ chipX[1] = 508320.;
+ chipX[2] = 381320.;
+ chipX[3] = 295320.;
+ chipX[4] = 150320.;
+ chipY[0] = 23750.;
+ chipY[1] = 27750.;
+ chipY[2] = 20750.;
+ chipY[3] = 42750.;
+ chipY[4] = 39750.;
+ } else {
+ chipX[0] = 389730.;
+ chipX[1] = 548630.;
+ chipX[2] = 674930.;
+ chipX[3] = 761430.;
+ chipX[4] = 905430.;
+ chipY[0] = 96250.;
+ chipY[1] = 91950.;
+ chipY[2] = 99250.;
+ chipY[3] = 107250.;
+ chipY[4] = 109750.;
+ } // end if isRight
+ for (i = 0; i < 5; i++) {
+ chipX[i] *= 0.00001;
+ chipY[i] *= 0.00001;
+ if (isRight) {
+ chipX[i] += xRef[3];
+ chipY[i] += yRef[3];
+ } else {
+ chipX[i] += xRef[8];
+ chipY[i] += yRef[8];
+ } // end for isRight
+ chipLength[i] *= fgkmm;
+ chipWidth[i] *= fgkmm;
+ chipThickness[i] *= fgkmm;
+ } // end for i
+
+ // create shapes for MCM
+ Double_t z1, z2;
+ TGeoXtru *shBase = new TGeoXtru(2);
+ z1 = -0.5*thickness;
+ z2 = z1 + mcmThickness;
+ shBase->DefinePolygon(8, xBase, yBase);
+ shBase->DefineSection(0, z1, 0., 0., 1.0);
+ shBase->DefineSection(1, z2, 0., 0., 1.0);
+
+ // create volumes of MCM
+ TGeoVolume *volBase = new TGeoVolume("ITSSPDbase", shBase, medBase);
+ volBase->SetLineColor(kRed);
+
+ // to create the border of the MCM cover, it is required the
+ // subtraction of two shapes the outer is created using the
+ // reference points defined here
+ TGeoXtru *shCapOut = new TGeoXtru(2);
+ shCapOut->SetName(Form("ITSSPDshCAPOUT%s", suf));
+ z1 = z2;
+ z2 = z1 + capHeight - capThickness;
+ shCapOut->DefinePolygon(6, xCap, yCap);
+ shCapOut->DefineSection(0, z1, 0., 0., 1.0);
+ shCapOut->DefineSection(1, z2, 0., 0., 1.0);
+ // the inner is built similarly but subtracting the thickness
+ Double_t angle, cs;
+ Double_t xin[6], yin[6];
+ if (!isRight) {
+ angle = 45.0;
+ cs = TMath::Cos( 0.5*(TMath::Pi() - angle*TMath::DegToRad()) );
+ xin[0] = xCap[0] + capThickness;
+ yin[0] = yCap[0] - capThickness;
+ xin[1] = xCap[1] - capThickness;
+ yin[1] = yin[0];
+ xin[2] = xin[1];
+ yin[2] = yCap[2] + capThickness;
+ xin[3] = xCap[3] - capThickness*cs;
+ yin[3] = yin[2];
+ xin[4] = xin[3] - sizeSep12;
+ yin[4] = yCap[4] + capThickness;
+ xin[5] = xin[0];
+ yin[5] = yin[4];
+ } else {
+ angle = 45.0;
+ cs = TMath::Cos( 0.5*(TMath::Pi() - angle*TMath::DegToRad()) );
+ xin[0] = xCap[0] - capThickness;
+ yin[0] = yCap[0] - capThickness;
+ xin[1] = xCap[1] + capThickness;
+ yin[1] = yin[0];
+ xin[2] = xin[1];
+ yin[2] = yCap[2] + capThickness;
+ xin[3] = xCap[3] - capThickness*cs;
+ yin[3] = yin[2];
+ xin[4] = xin[3] + sizeSep12;
+ yin[4] = yCap[4] + capThickness;
+ xin[5] = xin[0];
+ yin[5] = yin[4];
+ } // end if !isRight
+ TGeoXtru *shCapIn = new TGeoXtru(2);
+ shCapIn->SetName(Form("ITSSPDshCAPIN%s", suf));
+ shCapIn->DefinePolygon(6, xin, yin);
+ shCapIn->DefineSection(0, z1 - 0.01, 0., 0., 1.0);
+ shCapIn->DefineSection(1, z2 + 0.01, 0., 0., 1.0);
+ // compose shapes
+ TGeoCompositeShape *shCapBorder = new TGeoCompositeShape(
+ Form("ITSSPDshBORDER%s", suf),
+ Form("%s-%s", shCapOut->GetName(),
+ shCapIn->GetName()));
+ // create volume
+ TGeoVolume *volCapBorder = new TGeoVolume("ITSSPDcapBoarder",
+ shCapBorder,medCap);
+ volCapBorder->SetLineColor(kGreen);
+ // finally, we create the top of the cover, which has the same
+ // shape of outer border and a thickness equal of the one othe
+ // cover border one
+ TGeoXtru *shCapTop = new TGeoXtru(2);
+ z1 = z2;
+ z2 = z1 + capThickness;
+ shCapTop->DefinePolygon(6, xCap, yCap);
+ shCapTop->DefineSection(0, z1, 0., 0., 1.0);
+ shCapTop->DefineSection(1, z2, 0., 0., 1.0);
+ TGeoVolume *volCapTop = new TGeoVolume("ITSSPDcapTop", shCapTop, medCap);
+ volCapTop->SetLineColor(kBlue);
+
+ // create container assembly with right suffix
+ TGeoVolumeAssembly *mcmAssembly = new TGeoVolumeAssembly(
+ Form("ITSSPDmcm%s", suf));
+
+ // add mcm layer
+ mcmAssembly->AddNode(volBase, 1, gGeoIdentity);
+ // add chips
+ for (i = 0; i < 5; i++) {
+ TGeoVolume *box = gGeoManager->MakeBox(name[i],medChip,
+ 0.5*chipLength[i], 0.5*chipWidth[i], 0.5*chipThickness[i]);
+ TGeoTranslation *tr = new TGeoTranslation(chipX[i],chipY[i],
+ 0.5*(-thickness + chipThickness[i]) + mcmThickness);
+ box->SetLineColor(color[i]);
+ mcmAssembly->AddNode(box, 1, tr);
+ } // end for i
+ // add cap border
+ mcmAssembly->AddNode(volCapBorder, 1, gGeoIdentity);
+ // add cap top
+ mcmAssembly->AddNode(volCapTop, 1, gGeoIdentity);
+
+ return mcmAssembly;
+}
+
+//______________________________________________________________________
+TGeoVolumeAssembly* AliITSv11GeometrySPD::CreatePixelBus
+(Bool_t isRight, Int_t ilayer, TArrayD &sizes, TGeoManager *mgr) const
+{
+ //
+ // The pixel bus is implemented as a TGeoBBox with some objects on it,
+ // which could affect the particle energy loss.
+ // ---
+ // In order to avoid confusion, the bus is directly displaced
+ // according to the axis orientations which are used in the final stave:
+ // X --> thickness direction
+ // Y --> width direction
+ // Z --> length direction
+ //
+
+ // ** CRITICAL CHECK ******************************************************
+ // layer number can be ONLY 1 or 2
+ if (ilayer != 1 && ilayer != 2) AliFatal("Layer number MUST be 1 or 2");
+
+ // ** MEDIA **
+ //PIXEL BUS
+ TGeoMedium *medBus = GetMedium("SPDBUS(AL+KPT+EPOX)$",mgr);
+ TGeoMedium *medPt1000 = GetMedium("CERAMICS$",mgr); // ??? PT1000
+ // Capacity
+ TGeoMedium *medCap = GetMedium("SDD X7R capacitors$",mgr);
+ // ??? Resistance
+ //TGeoMedium *medRes = GetMedium("SDD X7R capacitors$",mgr);
+ TGeoMedium *medRes = GetMedium("ALUMINUM$",mgr);
+ //TGeoMedium *medExt = GetMedium("SDDKAPTON (POLYCH2)$", mgr);
+ TGeoMedium *medExt = GetMedium("SPD-MIX CU KAPTON$", mgr);
+ // ** SIZES & POSITIONS **
+ Double_t busLength = 170.501 * fgkmm; // length of plane part
+ Double_t busWidth = 13.800 * fgkmm; // width
+ Double_t busThickness = 0.280 * fgkmm; // thickness
+ Double_t pt1000Length = fgkmm * 1.50;
+ Double_t pt1000Width = fgkmm * 3.10;
+ Double_t pt1000Thickness = fgkmm * 0.60;
+ Double_t pt1000Y, pt1000Z[10];// position of the pt1000's along the bus
+ Double_t capLength = fgkmm * 2.55;
+ Double_t capWidth = fgkmm * 1.50;
+ Double_t capThickness = fgkmm * 1.35;
+ Double_t capY[2], capZ[2];
+
+ Double_t resLength = fgkmm * 2.20;
+ Double_t resWidth = fgkmm * 0.80;
+ Double_t resThickness = fgkmm * 0.35;
+ Double_t resY[2], resZ[2];
+
+ Double_t extThickness = fgkmm * 0.25;
+ Double_t ext1Length = fgkmm * (26.7 - 10.0);
+ Double_t ext2Length = fgkmm * 284.0 - ext1Length + extThickness;
+ Double_t extWidth = fgkmm * 11.0;
+ Double_t extHeight = fgkmm * 2.5;
+
+ // position of pt1000, resistors and capacitors depends on the
+ // bus if it's left or right one
+ if (!isRight) {
+ pt1000Y = 64400.;
+ pt1000Z[0] = 66160.;
+ pt1000Z[1] = 206200.;
+ pt1000Z[2] = 346200.;
+ pt1000Z[3] = 486200.;
+ pt1000Z[4] = 626200.;
+ pt1000Z[5] = 776200.;
+ pt1000Z[6] = 916200.;
+ pt1000Z[7] = 1056200.;
+ pt1000Z[8] = 1196200.;
+ pt1000Z[9] = 1336200.;
+ resZ[0] = 1397500.;
+ resY[0] = 26900.;
+ resZ[1] = 682500.;
+ resY[1] = 27800.;
+ capZ[0] = 1395700.;
+ capY[0] = 45700.;
+ capZ[1] = 692600.;
+ capY[1] = 45400.;
+ } else {
+ pt1000Y = 66100.;
+ pt1000Z[0] = 319700.;
+ pt1000Z[1] = 459700.;
+ pt1000Z[2] = 599700.;
+ pt1000Z[3] = 739700.;
+ pt1000Z[4] = 879700.;
+ pt1000Z[5] = 1029700.;
+ pt1000Z[6] = 1169700.;
+ pt1000Z[7] = 1309700.;
+ pt1000Z[8] = 1449700.;
+ pt1000Z[9] = 1589700.;
+ capY[0] = 44500.;
+ capZ[0] = 266700.;
+ capY[1] = 44300.;
+ capZ[1] = 974700.;
+ resZ[0] = 266500.;
+ resY[0] = 29200.;
+ resZ[1] = 974600.;
+ resY[1] = 29900.;
+ } // end if isRight
+ Int_t i;
+ pt1000Y *= 1E-4 * fgkmm;
+ for (i = 0; i < 10; i++) {
+ pt1000Z[i] *= 1E-4 * fgkmm;
+ if (i < 2) {
+ capZ[i] *= 1E-4 * fgkmm;
+ capY[i] *= 1E-4 * fgkmm;
+ resZ[i] *= 1E-4 * fgkmm;
+ resY[i] *= 1E-4 * fgkmm;
+ } // end if iM2
+ } // end for i
+
+ Double_t &fullLength = sizes[1];
+ Double_t &fullWidth = sizes[2];
+ Double_t &fullThickness = sizes[0];
+ fullLength = busLength;
+ fullWidth = busWidth;
+ // add the thickness of the thickest component on bus (capacity)
+ fullThickness = busThickness + capThickness;
+
+ // ** VOLUMES **
+ TGeoVolumeAssembly *container = new TGeoVolumeAssembly("ITSSPDpixelBus");
+ TGeoVolume *bus = mgr->MakeBox("ITSSPDbus", medBus, 0.5*busThickness,
+ 0.5*busWidth, 0.5*busLength);
+ TGeoVolume *pt1000 = mgr->MakeBox("ITSSPDpt1000",medPt1000,
+ 0.5*pt1000Thickness,0.5*pt1000Width, 0.5*pt1000Length);
+ TGeoVolume *res = mgr->MakeBox("ITSSPDresistor", medRes, 0.5*resThickness,
+ 0.5*resWidth, 0.5*resLength);
+ TGeoVolume *cap = mgr->MakeBox("ITSSPDcapacitor", medCap, 0.5*capThickness,
+ 0.5*capWidth, 0.5*capLength);
+
+ char extname[12];
+ snprintf(extname,12,"Extender1l%d",ilayer);
+ TGeoVolume *ext1 = mgr->MakeBox(extname, medExt, 0.5*extThickness, 0.5*extWidth, 0.5*ext1Length);
+ snprintf(extname,12,"Extender2l%d",ilayer);
+ TGeoVolume *ext2 = mgr->MakeBox(extname, medExt, 0.5*extHeight - 2.*extThickness, 0.5*extWidth, 0.5*extThickness);
+ TGeoVolume *ext3=0;
+ snprintf(extname,12,"Extender3l%d",ilayer);
+ if (ilayer==1) {
+ Double_t halflen=(0.5*ext2Length + extThickness);
+ Double_t xprof[6],yprof[6];
+ Double_t alpha=24;
+ xprof[0] = -halflen;
+ yprof[0] = -0.5*extThickness;
+ xprof[1] = halflen/2;
+ yprof[1] = yprof[0];
+ xprof[2] = xprof[1] + 0.5*halflen*CosD(alpha);
+ yprof[2] = yprof[1] + 0.5*halflen*SinD(alpha);
+ xprof[3] = xprof[2] - extThickness*SinD(alpha);
+ yprof[3] = yprof[2] + extThickness*CosD(alpha);
+ InsidePoint(xprof[0], yprof[0], xprof[1], yprof[1], xprof[2], yprof[2],
+ extThickness, xprof[4], yprof[4]);
+ xprof[5] = xprof[0];
+ yprof[5] = 0.5*extThickness;
+ TGeoXtru *ext3sh = new TGeoXtru(2);
+ ext3sh->DefinePolygon(6, xprof, yprof);
+ ext3sh->DefineSection(0, -0.5*(extWidth-0.8*fgkmm));
+ ext3sh->DefineSection(1, 0.5*(extWidth-0.8*fgkmm));
+ ext3 = new TGeoVolume(extname, ext3sh, medExt);
+ } else
+ ext3 = mgr->MakeBox(extname, medExt, 0.5*extThickness, 0.5*(extWidth-0.8*fgkmm), 0.5*ext2Length + extThickness); // Hardcode fix of a small overlap
+ bus->SetLineColor(kYellow + 2);
+ pt1000->SetLineColor(kGreen + 3);
+ res->SetLineColor(kRed + 1);
+ cap->SetLineColor(kBlue - 7);
+ ext1->SetLineColor(kGray);
+ ext2->SetLineColor(kGray);
+ ext3->SetLineColor(kGray);
+
+ // ** MOVEMENTS AND POSITIONEMENT **
+ // bus
+ TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
+ fullThickness), 0.0, 0.0);
+ container->AddNode(bus, 1, trBus);
+ Double_t zRef, yRef, x, y, z;
+ if (isRight) {
+ zRef = -0.5*fullLength;
+ yRef = -0.5*fullWidth;
+ } else {
+ zRef = -0.5*fullLength;
+ yRef = -0.5*fullWidth;
+ } // end if isRight
+ // pt1000
+ x = 0.5*(pt1000Thickness - fullThickness) + busThickness;
+ for (i = 0; i < 10; i++) {
+ y = yRef + pt1000Y;
+ z = zRef + pt1000Z[i];
+ TGeoTranslation *tr = new TGeoTranslation(x, y, z);
+ container->AddNode(pt1000, i+1, tr);
+ } // end for i
+ // capacitors
+ x = 0.5*(capThickness - fullThickness) + busThickness;
+ for (i = 0; i < 2; i++) {
+ y = yRef + capY[i];
+ z = zRef + capZ[i];
+ TGeoTranslation *tr = new TGeoTranslation(x, y, z);
+ container->AddNode(cap, i+1, tr);
+ } // end for i
+ // resistors
+ x = 0.5*(resThickness - fullThickness) + busThickness;
+ for (i = 0; i < 2; i++) {
+ y = yRef + resY[i];
+ z = zRef + resZ[i];
+ TGeoTranslation *tr = new TGeoTranslation(x, y, z);
+ container->AddNode(res, i+1, tr);
+ } // end for i
+
+ // extender
+ if (ilayer == 2) {
+ if (isRight) {
+ y = 0.5 * (fullWidth - extWidth) - 0.1;
+ z = 0.5 * (-fullLength + fgkmm * 10.0);
+ }
+ else {
+ y = 0.5 * (fullWidth - extWidth) - 0.1;
+ z = 0.5 * ( fullLength - fgkmm * 10.0);
+ }
+ }
+ else {
+ if (isRight) {
+ y = -0.5 * (fullWidth - extWidth);
+ z = 0.5 * (-fullLength + fgkmm * 10.0);
+ }
+ else {
+ y = -0.5 * (fullWidth - extWidth);
+ z = 0.5 * ( fullLength - fgkmm * 10.0);
+ }
+ }
+ x = 0.5 * (extThickness - fullThickness) + busThickness;
+ //y = 0.5 * (fullWidth - extWidth);
+ TGeoTranslation *trExt1 = new TGeoTranslation(x, y, z);
+ if (isRight) {
+ z -= 0.5 * (ext1Length - extThickness);
+ }
+ else {
+ z += 0.5 * (ext1Length - extThickness);
+ }
+ x += 0.5*(extHeight - 3.*extThickness);
+ TGeoTranslation *trExt2 = new TGeoTranslation(x, y, z);
+ if (isRight) {
+ z -= 0.5 * (ext2Length - extThickness) + 2.5*extThickness;
+ }
+ else {
+ z += 0.5 * (ext2Length - extThickness) + 2.5*extThickness;
+ }
+ x += 0.5*(extHeight - extThickness) - 2.*extThickness;
+ TGeoCombiTrans *trExt3=0;
+ if (ilayer==1) {
+ if (isRight)
+ trExt3 = new TGeoCombiTrans(x, y, z, new TGeoRotation("",0.,-90.,90.));
+ else
+ trExt3 = new TGeoCombiTrans(x, y, z, new TGeoRotation("",0., 90.,90.));
+ } else
+ trExt3 = new TGeoCombiTrans(x, y, z, 0);
+ container->AddNode(ext1, 0, trExt1);
+ container->AddNode(ext2, 0, trExt2);
+ container->AddNode(ext3, 0, trExt3);
+
+ sizes[3] = yRef + pt1000Y;
+ sizes[4] = zRef + pt1000Z[2];
+ sizes[5] = zRef + pt1000Z[7];
+
+ return container;
+}
+
+//______________________________________________________________________
+TList* AliITSv11GeometrySPD::CreateConeModule(Bool_t sideC, const Double_t angrot,
+ TGeoManager *mgr) const
+{
+ //
+ // Creates all services modules and places them in a TList
+ // angrot is the rotation angle (passed as an argument to avoid
+ // defining the same quantity in two different places)
+ //
+ // Created: ?? ??? 2008 A. Pulvirenti
+ // Updated: 03 May 2010 M. Sitta
+ // Updated: 20 Jun 2010 A. Pulvirenti Optical patch panels
+ // Updated: 22 Jun 2010 M. Sitta Fiber cables
+ // Updated: 04 Jul 2010 M. Sitta Water cooling
+ // Updated: 08 Jul 2010 A. Pulvirenti Air cooling on Side C
+ //
+
+ TGeoMedium *medInox = GetMedium("INOX$",mgr);
+ //TGeoMedium *medExt = GetMedium("SDDKAPTON (POLYCH2)$", mgr);
+ TGeoMedium *medExtB = GetMedium("SPD-BUS CU KAPTON$", mgr);
+ TGeoMedium *medExtM = GetMedium("SPD-MCM CU KAPTON$", mgr);
+ TGeoMedium *medPlate = GetMedium("SPD C (M55J)$", mgr);
+ TGeoMedium *medFreon = GetMedium("Freon$", mgr);
+ TGeoMedium *medGas = GetMedium("GASEOUS FREON$", mgr);
+ TGeoMedium *medFibs = GetMedium("SDD OPTICFIB$",mgr);
+ TGeoMedium *medCopper= GetMedium("COPPER$",mgr);
+ TGeoMedium *medPVC = GetMedium("PVC$",mgr);
+
+ Double_t extThickness = fgkmm * 0.25;
+ Double_t ext1Length = fgkmm * (26.7 - 10.0);
+// Double_t ext2Length = fgkmm * (285.0 - ext1Length + extThickness);
+ Double_t ext2Length = fgkmm * 285.0 - ext1Length + extThickness;
+
+ const Double_t kCableThickness = 1.5 *fgkmm;
+ Double_t cableL0 = 10.0 * fgkmm;
+ Double_t cableL1 = 340.0 * fgkmm - extThickness - ext1Length - ext2Length;
+ Double_t cableL2 = 300.0 * fgkmm;
+ //Double_t cableL3 = 570.0 * fgkmm;
+ Double_t cableL3 = 57.0 * fgkmm;
+ Double_t cableW1 = 11.0 * fgkmm;
+ Double_t cableW2 = 30.0 * fgkmm;
+ Double_t cableW3 = 50.0 * fgkmm;
+
+ const Double_t kMCMLength = cableL0 + cableL1 + cableL2 + cableL3;
+ const Double_t kMCMWidth = cableW1;
+ const Double_t kMCMThickness = 1.2 *fgkmm;
+
+ const Double_t kPlateLength = 200.0 *fgkmm;
+ const Double_t kPlateWidth = 50.0 *fgkmm;
+ const Double_t kPlateThickness = 5.0 *fgkmm;
+
+ const Double_t kConeTubeRmin = 2.0 *fgkmm;
+ const Double_t kConeTubeRmax = 3.0 *fgkmm;
+
+ const Double_t kHorizTubeLen = 150.0 *fgkmm;
+ const Double_t kYtoHalfStave = 9.5 *fgkmm;
+
+ const Double_t kWaterCoolRMax = 2.6 *fgkmm;
+ const Double_t kWaterCoolThick = 0.04 *fgkmm;
+ const Double_t kWaterCoolLen = 250.0 *fgkmm;
+ const Double_t kWCPlateThick = 0.5 *fgkmm;
+ const Double_t kWCPlateWide = 33.0 *fgkmm;
+ const Double_t kWCPlateLen = 230.0 *fgkmm;
+ const Double_t kWCFittingRext1 = 2.4 *fgkmm;
+ const Double_t kWCFittingRext2 = 3.7 *fgkmm;
+ const Double_t kWCFittingRint1 = 1.9 *fgkmm;
+ const Double_t kWCFittingRint2 = kWaterCoolRMax;
+ const Double_t kWCFittingLen1 = 7.0 *fgkmm;
+ const Double_t kWCFittingLen2 = 8.0 *fgkmm;
+
+ const Double_t kCollWidth = 40.0 *fgkmm;
+ const Double_t kCollLength = 60.0 *fgkmm;
+ const Double_t kCollThickness = 10.0 *fgkmm;
+ const Double_t kCollTubeThick = 1.0 *fgkmm;
+ const Double_t kCollTubeRadius = 7.0 *fgkmm;
+ const Double_t kCollTubeLength = 190.0 *fgkmm;
+
+ const Double_t kOptFibDiamet = 4.5 *fgkmm;
+
+ Double_t x[12], y[12];
+ Double_t xloc, yloc, zloc;
+
+ Int_t kPurple = 6; // Purple (Root does not define it)
+
+ TGeoVolumeAssembly* container[5];
+ container[0] = new TGeoVolumeAssembly("ITSSPDConeModule");
+ container[1] = new TGeoVolumeAssembly("ITSSPDCoolingModuleSideA");
+ container[2] = new TGeoVolumeAssembly("ITSSPDCoolingModuleSideC");
+ container[3] = new TGeoVolumeAssembly("ITSSPDPatchPanelModule");
+ container[4] = new TGeoVolumeAssembly("ITSSPDWaterCooling");
+
+ // The extender on the cone as a Xtru
+ x[0] = -cableL0;
+ y[0] = 0.0 + 0.5 * cableW1;
+
+ x[1] = x[0] + cableL0 + cableL1 - 0.5*(cableW2 - cableW1);
+ y[1] = y[0];
+
+ x[2] = x[0] + cableL0 + cableL1;
+ y[2] = y[1] + 0.5*(cableW2 - cableW1);
+
+ x[3] = x[2] + cableL2;
+ y[3] = y[2];
+
+ x[4] = x[3] + 0.5*(cableW3 - cableW2);
+ y[4] = y[3] + 0.5*(cableW3 - cableW2);
+
+ x[5] = x[4] + cableL3 - 0.5*(cableW3 - cableW2);
+ y[5] = y[4];
+
+ for (Int_t i = 6; i < 12; i++) {
+ x[i] = x[11 - i];
+ y[i] = -y[11 - i];
+ }
+
+ TGeoXtru *shCable = new TGeoXtru(2);
+ shCable->DefinePolygon(12, x, y);
+ shCable->DefineSection(0, 0.0);
+ shCable->DefineSection(1, kCableThickness);
+
+ TGeoVolume *volCable = new TGeoVolume("ITSSPDExtender", shCable, medExtB);
+ volCable->SetLineColor(kGreen);
+
+ // The MCM extender on the cone as a Xtru
+ TGeoBBox *shMCMExt = new TGeoBBox(0.5*kMCMLength,
+ 0.5*kMCMWidth,
+ 0.5*kMCMThickness);
+
+ TGeoVolume *volMCMExt = new TGeoVolume("ITSSPDExtenderMCM",
+ shMCMExt, medExtM);
+ volMCMExt->SetLineColor(kGreen+3);
+
+ // The support plate on the cone as a composite shape
+ Double_t thickness = kCableThickness + kMCMThickness;
+ TGeoBBox *shOut = new TGeoBBox("ITSSPD_shape_plateout",
+ 0.5*kPlateLength,
+ 0.5*kPlateWidth,
+ 0.5*kPlateThickness);
+ TGeoBBox *shIn = new TGeoBBox("ITSSPD_shape_platein" ,
+ 0.5*kPlateLength,
+ 0.5*cableW2,
+ 0.5*thickness);
+ Char_t string[255];
+ snprintf(string, 255, "%s-%s", shOut->GetName(), shIn->GetName());
+ TGeoCompositeShape *shPlate = new TGeoCompositeShape("ITSSPDPlate_shape",
+ string);
+
+ TGeoVolume *volPlate = new TGeoVolume("ITSSPDPlate",
+ shPlate, medPlate);
+ volPlate->SetLineColor(kRed);
+
+ // The air cooling tubes
+ TGeoBBox *shCollBox = new TGeoBBox("ITSSPD_shape_collector_box", 0.5*kCollLength, 0.5*kCollWidth, 0.5*kCollThickness);
+ TGeoTube *shCollTube = new TGeoTube("ITSSPD_shape_collector_tube",kCollTubeRadius - kCollTubeThick, kCollTubeRadius, 0.5*kCollTubeLength);
+ TGeoVolume *volCollBox = new TGeoVolume("ITSSPDCollectorBox", shCollBox, medPVC);
+ TGeoVolume *volCollTube = new TGeoVolume("ITSSPDCollectorTube", shCollTube, medPVC);
+ volCollBox->SetLineColor(kAzure);
+ volCollTube->SetLineColor(kAzure);
+
+ // The cooling tube on the cone as a Ctub
+ Double_t tubeLength = shCable->GetX(5) - shCable->GetX(0) + kYtoHalfStave;
+ TGeoCtub *shTube = new TGeoCtub(0, kConeTubeRmax, 0.5*tubeLength, 0, 360,
+ 0, SinD(angrot/2), -CosD(angrot/2),
+ 0, 0, 1);
+
+ TGeoVolume *volTubeA = new TGeoVolume("ITSSPDCoolingTubeOnConeA",
+ shTube, medInox);
+ volTubeA->SetLineColor(kGray);
+
+ TGeoVolume *volTubeC = new TGeoVolume("ITSSPDCoolingTubeOnConeC",
+ shTube, medInox);
+ volTubeC->SetLineColor(kGray);
+
+ // The freon in the cooling tubes on the cone as a Ctub
+ TGeoCtub *shFreon = new TGeoCtub(0, kConeTubeRmin, 0.5*tubeLength, 0, 360,
+ 0, SinD(angrot/2), -CosD(angrot/2),
+ 0, 0, 1);
+
+ TGeoVolume *volFreon = new TGeoVolume("ITSSPDCoolingFreonOnCone",
+ shFreon, medFreon);
+ volFreon->SetLineColor(kPurple);
+
+ TGeoVolume *volGasFr = new TGeoVolume("ITSSPDCoolingFreonGasOnCone",
+ shFreon, medGas);
+ volGasFr->SetLineColor(kPurple);
+
+ // The cooling tube inside the cylinder as a Ctub
+ TGeoCtub *shCylTub = new TGeoCtub(0, kConeTubeRmax,
+ 0.5*kHorizTubeLen, 0, 360,
+ 0, 0, -1,
+ 0, SinD(angrot/2), CosD(angrot/2));
+
+ TGeoVolume *volCylTubA = new TGeoVolume("ITSSPDCoolingTubeOnCylA",
+ shCylTub, medInox);
+ volCylTubA->SetLineColor(kGray);
+
+ TGeoVolume *volCylTubC = new TGeoVolume("ITSSPDCoolingTubeOnCylC",
+ shCylTub, medInox);
+ volCylTubC->SetLineColor(kGray);
+
+ // The freon in the cooling tubes in the cylinder as a Ctub
+ TGeoCtub *shCylFr = new TGeoCtub(0, kConeTubeRmin,
+ 0.5*kHorizTubeLen, 0, 360,
+ 0, 0, -1,
+ 0, SinD(angrot/2), CosD(angrot/2));
+
+ TGeoVolume *volCylFr = new TGeoVolume("ITSSPDCoolingFreonOnCyl",
+ shCylFr, medFreon);
+ volCylFr->SetLineColor(kPurple);
+
+ TGeoVolume *volCylGasFr = new TGeoVolume("ITSSPDCoolingFreonGasOnCyl",
+ shCylFr, medGas);
+ volCylGasFr->SetLineColor(kPurple);
+
+ // The optical fibers bundle on the cone as a Tube
+ Double_t optLength = shCable->GetX(5) - shCable->GetX(0) + kYtoHalfStave;
+ TGeoTube *shOptFibs = new TGeoTube(0., 0.5*kOptFibDiamet, 0.5*optLength);
+
+ TGeoVolume *volOptFibs = new TGeoVolume("ITSSPDOpticalFibersOnCone",
+ shOptFibs, medFibs);
+ volOptFibs->SetLineColor(kOrange);
+
+ // The optical patch panels
+ TArrayD psizes;
+ TGeoVolume *volPatch = CreatePatchPanel(psizes, mgr);
+
+ // The water cooling tube as a Tube
+ TGeoTube *shWatCool = new TGeoTube(kWaterCoolRMax-kWaterCoolThick,
+ kWaterCoolRMax, kWaterCoolLen/2);
+
+ TGeoVolume *volWatCool = new TGeoVolume("ITSSPDWaterCoolingOnCone",
+ shWatCool, medInox);
+ volWatCool->SetLineColor(kGray);
+
+ // The support plate for the water tubes: a Tubs and a BBox
+ TGeoTubeSeg *shWCPltT = new TGeoTubeSeg(kWaterCoolRMax,
+ kWaterCoolRMax+kWCPlateThick,
+ kWCPlateLen/2, 180., 360.);
+
+ Double_t plateBoxWide = (kWCPlateWide - 2*kWaterCoolRMax)/2;
+ TGeoBBox *shWCPltB = new TGeoBBox(plateBoxWide/2,
+ kWCPlateThick/2,
+ kWCPlateLen/2);
+
+ TGeoVolume *volWCPltT = new TGeoVolume("ITSSPDWaterCoolingTubsPlate",
+ shWCPltT, medPlate);
+ volWCPltT->SetLineColor(kRed);
+
+ TGeoVolume *volWCPltB = new TGeoVolume("ITSSPDWaterCoolingBoxPlate",
+ shWCPltB, medPlate);
+ volWCPltB->SetLineColor(kRed);
+
+ // The fitting for the water cooling tube: a Pcon
+ TGeoPcon *shFitt = new TGeoPcon(0., 360., 4);
+ shFitt->Z(0) = -kWCFittingLen1;
+ shFitt->Rmin(0) = kWCFittingRint1;
+ shFitt->Rmax(0) = kWCFittingRext1;
+
+ shFitt->Z(1) = 0;
+ shFitt->Rmin(1) = kWCFittingRint1;
+ shFitt->Rmax(1) = kWCFittingRext1;
-/* $Id$ */
+ shFitt->Z(2) = 0;
+ shFitt->Rmin(2) = kWCFittingRint2;
+ shFitt->Rmax(2) = kWCFittingRext2;
-// General Root includes
-#include <Riostream.h>
-#include <TMath.h>
-#include <TLatex.h>
-#include <TCanvas.h>
-#include <TPolyLine.h>
-#include <TPolyMarker.h>
+ shFitt->Z(3) = kWCFittingLen2;
+ shFitt->Rmin(3) = kWCFittingRint2;
+ shFitt->Rmax(3) = kWCFittingRext2;
-// Root Geometry includes
-#include <TGeoVolume.h>
-#include <TGeoPcon.h>
-#include <TGeoCone.h>
-#include <TGeoTube.h> // contains TGeoTubeSeg
-#include <TGeoArb8.h>
-#include <TGeoEltu.h>
-#include <TGeoXtru.h>
-#include <TGeoMatrix.h>
-#include <TGeoMaterial.h>
-#include <TGeoMedium.h>
-#include <TGeoCompositeShape.h>
+ TGeoVolume *volFitt = new TGeoVolume("ITSSPDWaterCoolingFitting",
+ shFitt, medCopper);
+ volFitt->SetLineColor(kOrange);
-// AliRoot includes
-#include "AliLog.h"
-#include "AliMagF.h"
-#include "AliRun.h"
+ // Now place everything in the containers
+ volTubeA->AddNode(volGasFr, 1, 0);
+ volTubeC->AddNode(volFreon, 1, 0);
-// Declaration file
-#include "AliITSv11GeometrySPD.h"
+ volCylTubA->AddNode(volCylGasFr, 1, 0);
+ volCylTubC->AddNode(volCylFr , 1, 0);
-ClassImp(AliITSv11GeometrySPD)
+ container[0]->AddNode(volCable, 1, 0);
-//#define SQ(A) (A)*(A)
+ xloc = shMCMExt->GetDX() - cableL0;
+ zloc = shMCMExt->GetDZ();
+ container[0]->AddNode(volMCMExt, 1,
+ new TGeoTranslation( xloc, 0.,-zloc));
-AliITSv11GeometrySPD::AliITSv11GeometrySPD(Double_t gap) :
- AliITSv11Geometry(), fAlignmentGap(gap),
- fSPDsectorX0(0), fSPDsectorY0(0), fSPDsectorX1(0), fSPDsectorY1(0)
-{
- //
- // Default constructor.
- // This does not initialize anything and is provided just for completeness.
- // It is recommended to use the other one.
- // The alignment gap is specified as argument (default = 0.0075 cm).
- //
- Int_t i = 0;
- for (i = 0; i < 6; i++) fAddStave[i] = kTRUE;
-}
-//
-//__________________________________________________________________________________________
-AliITSv11GeometrySPD::AliITSv11GeometrySPD(Int_t debug, Double_t gap):
- AliITSv11Geometry(debug), fAlignmentGap(gap),
- fSPDsectorX0(0), fSPDsectorY0(0), fSPDsectorX1(0), fSPDsectorY1(0)
-{
- //
- // Constructor with debug setting argument
- // This is the constructor which is recommended to be used.
- // It sets a debug level, and initializes the name of the object.
- // The alignment gap is specified as argument (default = 0.0075 cm).
- //
- Int_t i = 0;
- for (i = 0; i < 6; i++) fAddStave[i] = kTRUE;
-}
-//
-//__________________________________________________________________________________________
-TGeoMedium* AliITSv11GeometrySPD::GetMedium(const char* mediumName, TGeoManager *mgr) const
-{
- //
- // This function is used to recovery any medium
- // used to build the geometry volumes.
- // If the required medium does not exists,
- // a NULL pointer is returned, and an error message is written.
- //
-
- Char_t itsMediumName[30];
- sprintf(itsMediumName, "ITS_%s", mediumName);
- TGeoMedium* medium = mgr->GetMedium(itsMediumName);
- if (!medium) AliError(Form("Medium <%s> not found", mediumName));
-
- return medium;
-}
-//
-//__________________________________________________________________________________________
-Int_t AliITSv11GeometrySPD::CreateSPDCentralMaterials(Int_t &medOffset, Int_t &matOffset) const
-{
- //
- // Define the specific materials used for the ITS SPD central detectors.
- // ---
- // NOTE: These are the same old names.
- // By the ALICE naming conventions, they start with "ITS SPD ...."
- // Data taken from ** AliITSvPPRasymmFMD::CreateMaterials() **.
- // ---
- // Arguments [the ones passed by reference contain output values]:
- // - medOffset --> (by ref) starting number of the list of media
- // - matOffset --> (by ref) starting number of the list of Materials
- // ---
- // Return value:
- // - the last material index used + 1 (= next avaiable material index)
- // ---
- // Begin_Html
- /*
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.ps"
- title="SPD Sector drawing with all cross sections defined">
- <p>The SPD Sector definition. In
- <a href="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.hpgl">HPGL</a> format.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly-10-modules.ps"
- titile="SPD All Sectors end view with thermal sheald">
- <p>The SPD all sector end view with thermal sheald.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.ps"
- title="SPD side view cross section">
- <p>SPD side view cross section with condes and thermal shealds.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-A_A.jpg"
- title="Cross section A-A"><p>Cross section A-A.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-B_B.jpg"
- title="Cross section B-B"><p>Cross section B-B.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-C_C.jpg"
- title-"Cross section C-C"><p>Cross section C-C.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-D_D.jpg"
- title="Cross section D-D"><p>Cross section D-D.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-E_E.jpg"
- title="Cross section E-E"><p>Cross section E-E.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-F_F.jpg"
- title="Cross section F-F"><p>Cross section F-F.
- <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-G_G.jpg"
- title="Cross section G-G"><p>Cross section G-G.
- */
- // End_Html
- //
- const Double_t ktmaxfd = 0.1 * fgkDegree; // Degree
- const Double_t kstemax = 1.0 * fgkcm; // cm
- const Double_t kdeemax = 0.1;//Fraction of particle's energy 0<deemax<=1
- const Double_t kepsil = 1.0E-4; //
- const Double_t kstmin = 0.0 * fgkcm; // cm "Default value used"
- const Double_t ktmaxfdAir = 0.1 * fgkDegree; // Degree
- const Double_t kstemaxAir = 1.0000E+00 * fgkcm; // cm
- const Double_t kdeemaxAir = 0.1; // Fraction of particle's energy 0<deemax<=1
- const Double_t kepsilAir = 1.0E-4;//
- const Double_t kstminAir = 0.0 * fgkcm; // cm "Default value used"
- const Double_t ktmaxfdSi = 0.1 * fgkDegree; // .10000E+01; // Degree
- const Double_t kstemaxSi = 0.0075 * fgkcm; // .10000E+01; // cm
- const Double_t kdeemaxSi = 0.1; // Fraction of particle's energy 0<deemax<=1
- const Double_t kepsilSi = 1.0E-4;//
- const Double_t kstminSi = 0.0 * fgkcm; // cm "Default value used"
-
- Int_t matindex = matOffset;
- Int_t medindex = medOffset;
- TGeoMaterial *mat;
- TGeoMixture *mix;
- TGeoMedium *med;
-
- Int_t ifield = (gAlice->Field()->Integ());
- Double_t fieldm = (gAlice->Field()->Max());
- Double_t params[8] = {8 * 0.0};
- params[1] = (Double_t) ifield;
- params[2] = fieldm;
- params[3] = ktmaxfdSi;
- params[4] = kstemaxSi;
- params[5] = kdeemaxSi;
- params[6] = kepsilSi;
- params[7] = kstminSi;
-
- //
- // Definition of materials and mediums.
- // Last argument in material definition is its pressure,
- // which is initialized to ZERO.
- // For better readability, it is simply set to zero.
- // Then the writing "0.0 * fgkPascal" is replaced by "0."
- // (Alberto)
- //
-
- // silicon definition for ITS (overall)
- mat = new TGeoMaterial("ITS_SI", 28.086, 14.0, 2.33 * fgkgcm3,
- TGeoMaterial::kMatStateSolid, 25.0 * fgkCelsius, 0.);
- mat->SetIndex(matindex);
- med = new TGeoMedium("SI", medindex++, mat, params);
-
- // silicon for ladder chips
- mat = new TGeoMaterial("SPD SI CHIP", 28.086, 14.0, 2.33 * fgkgcm3,
- TGeoMaterial::kMatStateSolid, 25.0 * fgkCelsius, 0.);
- mat->SetIndex(matindex);
- med = new TGeoMedium("SPD SI CHIP", medindex++, mat, params);
-
- // silicon for pixel bus
- mat = new TGeoMaterial("SPD SI BUS", 28.086, 14.0, 2.33 * fgkgcm3,
- TGeoMaterial::kMatStateSolid, 25.0 * fgkCelsius, 0.);
- mat->SetIndex(matindex);
- med = new TGeoMedium("SPD SI BUS", medindex++, mat, params);
-
- // carbon fiber material is defined as a mix of C-O-N-H
- // defined in terms of fractional weights according to 'C (M55J)'
- // it is used for the support and clips
- mix = new TGeoMixture("C (M55J)", 4, 1.9866 * fgkgcm3);
- mix->SetIndex(matindex);
- mix->DefineElement(0, 12.01070, 6.0, 0.908508078); // C by fractional weight
- mix->DefineElement(1, 14.00670, 7.0, 0.010387573); // N by fractional weight
- mix->DefineElement(2, 15.99940, 8.0, 0.055957585); // O by fractional weight
- mix->DefineElement(3, 1.00794, 1.0, 0.025146765); // H by fractional weight
- mix->SetPressure(0.0 * fgkPascal);
- mix->SetTemperature(25.0 * fgkCelsius);
- mix->SetState(TGeoMaterial::kMatStateSolid);
- params[3] = ktmaxfd;
- params[4] = kstemax;
- params[5] = kdeemax;
- params[6] = kepsil;
- params[7] = kstmin;
- med = new TGeoMedium("ITSspdCarbonFiber", medindex++, mix, params);
-
- // air defined as a mixture of C-N-O-Ar:
- // it is used to fill all containers
- mix = new TGeoMixture("Air", 4, 1.20479E-3 * fgkgcm3);
- mix->SetIndex(matindex);
- mix->DefineElement(0, 12.0107, 6.0, 0.000124); // C by fractional weight
- mix->DefineElement(1, 14.0067, 7.0, 0.755267); // N by fractional weight
- mix->DefineElement(2, 15.9994, 8.0, 0.231781); // O by fractional weight
- mix->DefineElement(3, 39.9480, 18.0, 0.012827); // Ar by fractional weight
- mix->SetPressure(101325.0 * fgkPascal); // = 1 atmosphere
- mix->SetTemperature(25.0 * fgkCelsius);
- mix->SetState(TGeoMaterial::kMatStateGas);
- params[3] = ktmaxfdAir;
- params[4] = kstemaxAir;
- params[5] = kdeemaxAir;
- params[6] = kepsilAir;
- params[7] = kstminAir;
- med = new TGeoMedium("ITSspdAir", medindex++, mix, params);
-
- // inox stainless steel, defined as a mixture
- // used for all metallic parts
- mix = new TGeoMixture("INOX", 9, 8.03 * fgkgcm3);
- mix->SetIndex(matindex);
- mix->DefineElement(0, 12.0107, 6., .0003); // C by fractional weight
- mix->DefineElement(1, 54.9380, 25., .02); // Fe by fractional weight
- mix->DefineElement(2, 28.0855, 14., .01); // Na by fractional weight
- mix->DefineElement(3, 30.9738, 15., .00045); // P by fractional weight
- mix->DefineElement(4, 32.066 , 16., .0003); // S by fractional weight
- mix->DefineElement(5, 58.6928, 28., .12); // Ni by fractional weight
- mix->DefineElement(6, 55.9961, 24., .17); // by fractional weight
- mix->DefineElement(7, 95.84 , 42., .025); // by fractional weight
- mix->DefineElement(8, 55.845 , 26., .654); // by fractional weight
- mix->SetPressure(0.0 * fgkPascal);
- mix->SetTemperature(25.0 * fgkCelsius);
- mix->SetState(TGeoMaterial::kMatStateSolid);
- params[3] = ktmaxfdAir;
- params[4] = kstemaxAir;
- params[5] = kdeemaxAir;
- params[6] = kepsilAir;
- params[7] = kstminAir;
- med = new TGeoMedium("ITSspdStainlessSteel", medindex++, mix, params);
-
- // freon gas which fills the cooling system (C+F)
- mix = new TGeoMixture("Freon", 2, 1.63 * fgkgcm3);
- mix->SetIndex(matindex);
- mix->DefineElement(0, 12.0107 , 6.0, 4); // C by fractional weight
- mix->DefineElement(1, 18.9984032, 9.0, 10); // F by fractional weight
- mix->SetPressure(101325.0 * fgkPascal); // = 1 atmosphere
- mix->SetTemperature(25.0 * fgkCelsius);
- mix->SetState(TGeoMaterial::kMatStateLiquid);
- params[3] = ktmaxfdAir;
- params[4] = kstemaxAir;
- params[5] = kdeemaxAir;
- params[6] = kepsilAir;
- params[7] = kstminAir;
- med = new TGeoMedium("ITSspdCoolingFluid", medindex++, mix, params);
-
- // return the next index to be used in case of adding new materials
- medOffset = medindex;
- matOffset = matindex;
- return matOffset;
-}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::InitSPDCentral(Int_t offset, TVirtualMC *vmc) const
-{
- //
- // Do all SPD Central detector initializations (e.g.: transport cuts).
- // ---
- // Here follow some GEANT3 physics switches, which are interesting
- // for these settings to be defined:
- // - "MULTS" (MULtiple Scattering):
- // the variable IMULS controls this process. See [PHYS320/325/328]
- // 0 - No multiple scattering.
- // 1 - (DEFAULT) Multiple scattering according to Moliere theory.
- // 2 - Same as 1. Kept for backward compatibility.
- // 3 - Pure Gaussian scattering according to the Rossi formula.
- // - "DRAY" (Delta RAY production)
- // The variable IDRAY controls this process. See [PHYS430]
- // 0 - No delta rays production.
- // 1 - (DEFAULT) Delta rays production with generation of.
- // 2 - Delta rays production without generation of.
- // - "LOSS" (continuous energy loss)
- // The variable ILOSS controls this process.
- // 0 - No continuous energy loss, IDRAY is set to 0.
- // 1 - Continuous energy loss with generation of delta rays above
- // DCUTE (common/GCUTS/) and restricted Landau fluctuations below DCUTE.
- // 2 - (DEFAULT) Continuous energy loss without generation of delta rays
- // and full Landau-Vavilov-Gauss fluctuations.
- // In this case the variable IDRAY is forced to 0 to avoid
- // double counting of fluctuations.
- // 3 - Same as 1, kept for backward compatibility.
- // 4 - Energy loss without fluctuation.
- // The value obtained from the tables is used directly.
- // ---
- // Arguments:
- // Int_t offset --> the material/medium index offset
- // TVirtualMC *vmc --> pointer to the virtual Monte Carlo default gMC
- //
-
- Int_t i, n = 4;
-
- for(i=0;i<n;i++) {
- vmc->Gstpar(i+offset, "CUTGAM", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "CUTELE", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "CUTNEU", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "CUTHAD", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "CUTMUO", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "BCUTE", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "BCUTM", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "DCUTE", 30.0 * fgkKeV);
- vmc->Gstpar(i+offset, "DCUTM", 30.0 * fgkKeV);
- //vmc->Gstpar(i+offset, "PPCUTM", );
- //vmc->Gstpar(i+offset, "PAIR", );
- //vmc->Gstpar(i+offset, "COMPT", );
- //vmc->Gstpar(i+offset, "PHOT", );
- //vmc->Gstpar(i+offset, "PFIS", );
- vmc->Gstpar(i+offset, "DRAY", 1);
- //vmc->Gstpar(i+offset, "ANNI", );
- //vmc->Gstpar(i+offset, "BREM", );
- //vmc->Gstpar(i+offset, "HADR", );
- //vmc->Gstpar(i+offset, "MUNU", );
- //vmc->Gstpar(i+offset, "DCAY", );
- vmc->Gstpar(i+offset, "LOSS", 1);
- //vmc->Gstpar(i+offset, "MULS", );
- //vmc->Gstpar(i+offset, "GHCOR1", );
- //vmc->Gstpar(i+offset, "BIRK1", );
- //vmc->Gstpar(i+offset, "BRIK2", );
- //vmc->Gstpar(i+offset, "BRIK3", );
- //vmc->Gstpar(i+offset, "LABS", );
- //vmc->Gstpar(i+offset, "SYNC", );
- //vmc->Gstpar(i+offset, "STRA", );
- }
-}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::SPDSector(TGeoVolume *moth, TGeoManager *mgr)
-{
- //
- // Creates a single SPD carbon fiber sector and places it
- // in a container volume passed as first argument ('moth').
- // Second argument points to the TGeoManager which coordinates
- // the overall volume creation.
- // The position of the sector is based on distance of
- // closest point of SPD stave to beam pipe
- // (figures all-sections-modules.ps) of 7.22mm at section A-A.
- //
-
- const Double_t kSPDclossesStaveAA = 7.22 * fgkmm;
- const Double_t kSectorStartingAngle = -72.0 * fgkDegree;
- const Double_t kNSectorsTotal = 10.0;
- const Double_t kSectorRelativeAngle = 360.0 / kNSectorsTotal * fgkDegree;
- const Double_t kBeamPipeRadius = 0.5 * 60.0 * fgkmm;
-
- Int_t i;
- Double_t angle, radiusSector, xAAtubeCenter0, yAAtubeCenter0;
- Double_t staveThicknessAA = 1.03 * fgkmm; // get from stave geometry.
- TGeoCombiTrans *secRot = new TGeoCombiTrans();
- TGeoVolume *vCarbonFiberSector;
- TGeoMedium *medSPDcf;
-
- // define an assembly and fill it with the support of
- // a single carbon fiber sector and staves in it
- medSPDcf = GetMedium("SPD C (M55J)$", mgr);
- vCarbonFiberSector = new TGeoVolumeAssembly("ITSSPDCarbonFiberSectorV");
- vCarbonFiberSector->SetMedium(medSPDcf);
- CarbonFiberSector(vCarbonFiberSector, xAAtubeCenter0, yAAtubeCenter0, mgr);
- vCarbonFiberSector->SetVisibility(kTRUE); // logical volume
-
- // Compute the radial shift out of the sectors
- radiusSector = kBeamPipeRadius + kSPDclossesStaveAA + staveThicknessAA;
- radiusSector *= radiusSector; // squaring;
- radiusSector -= xAAtubeCenter0 * xAAtubeCenter0;
- radiusSector = -yAAtubeCenter0 + TMath::Sqrt(radiusSector);
-
- // add 10 single sectors, by replicating the virtual sector defined above
- // and placing at different angles
- Double_t shiftX, shiftY;
- angle = kSectorStartingAngle;
- secRot->RotateZ(angle);
- for(i = 0; i < (Int_t)kNSectorsTotal; i++) {
- shiftX = -radiusSector * TMath::Sin(angle/fgkRadian);
- shiftY = radiusSector * TMath::Cos(angle/fgkRadian);
- secRot->SetDx(shiftX);
- secRot->SetDy(shiftY);
- moth->AddNode(vCarbonFiberSector, i+1, new TGeoCombiTrans(*secRot));
- if(GetDebug(5)) {
- AliInfo(Form("i=%d angle=%g angle[rad]=%g radiusSector=%g x=%g y=%g \n",
- i, angle, angle/fgkRadian, radiusSector, shiftX, shiftY));
- }
- angle += kSectorRelativeAngle;
- secRot->RotateZ(kSectorRelativeAngle);
- }
- if(GetDebug(3)) moth->PrintNodes();
+ xloc = shMCMExt->GetDX();
+ zloc = shCable->GetZ(1)/2 - shMCMExt->GetDZ();
+ container[0]->AddNode(volPlate, 1,
+ new TGeoTranslation( xloc, 0., zloc));
- delete secRot;
-}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::CarbonFiberSector
-(TGeoVolume *moth, Double_t &xAAtubeCenter0, Double_t &yAAtubeCenter0, TGeoManager *mgr)
-{
- //
- // Define the detail SPD Carbon fiber support Sector geometry.
- // Based on the drawings:
- // - ALICE-Pixel "Costruzione Profilo Modulo" (march 25 2004)
- // - ALICE-SUPPORTO "Costruzione Profilo Modulo"
- // ---
- // Define outside radii as negative, where "outside" means that the
- // center of the arc is outside of the object (feb 16 2004).
- // ---
- // Arguments [the one passed by ref contain output values]:
- // TGeoVolume *moth --> the voulme which will contain this object
- // Double_t &xAAtubeCenter0 --> (by ref) x location of the outer surface
- // of the cooling tube center for tube 0.
- // Double_t &yAAtubeCenter0 --> (by ref) y location of the outer surface
- // of the cooling tube center for tube 0.
- // TGeoManager *mgr --> TGeo builder
- // ---
- // Int the two variables passed by reference values will be stored
- // which will then be used to correctly locate this sector.
- // The information used for this is the distance between the
- // center of the #0 detector and the beam pipe.
- // Measurements are taken at cross section A-A.
- //
-
- //TGeoMedium *medSPDfs = 0; // SPD support cone inserto stesalite 4411w.
- //TGeoMedium *medSPDfo = 0; // SPD support cone foam, Rohacell 50A.
- //TGeoMedium *medSPDal = 0; // SPD support cone SDD mounting bracket Al
- TGeoMedium *medSPDcf = GetMedium("SPD C (M55J)$", mgr);
- TGeoMedium *medSPDss = GetMedium("INOX$", mgr);
- TGeoMedium *medSPDair = GetMedium("AIR$", mgr);
- TGeoMedium *medSPDcoolfl = GetMedium("Freon$", mgr); //ITSspdCoolingFluid
-
- const Double_t ksecDz = 0.5 * 500.0 * fgkmm;
- const Double_t ksecLen = 30.0 * fgkmm;
- const Double_t ksecCthick = 0.2 * fgkmm;
- const Double_t ksecDipLength = 3.2 * fgkmm;
- const Double_t ksecDipRadii = 0.4 * fgkmm;
- //const Double_t ksecCoolingTubeExtraDepth = 0.86 * fgkmm;
-
- // The following positions ('ksecX#' and 'ksecY#') and radii ('ksecR#')
- // are the centers and radii of curvature of all the rounded corners
- // between the straight borders of the SPD sector shape.
- // To draw this SPD sector, the following steps are followed:
- // 1) the (ksecX, ksecY) points are plotted
- // and circles of the specified radii are drawn around them.
- // 2) each pair of consecutive circles is connected by a line
- // tangent to them, in accordance with the radii being "internal" or "external"
- // with respect to the closed shape which describes the sector itself.
- // The resulting connected shape is the section
- // of the SPD sector surface in the transverse plane (XY).
-
- const Double_t ksecX0 = -10.725 * fgkmm;
- const Double_t ksecY0 = -14.853 * fgkmm;
- const Double_t ksecR0 = -0.8 * fgkmm; // external
- const Double_t ksecX1 = -13.187 * fgkmm;
- const Double_t ksecY1 = -19.964 * fgkmm;
- const Double_t ksecR1 = +0.6 * fgkmm; // internal
- // const Double_t ksecDip0 = 5.9 * fgkmm;
-
- const Double_t ksecX2 = -3.883 * fgkmm;
- const Double_t ksecY2 = -17.805 * fgkmm;
- const Double_t ksecR2 = +0.80 * fgkmm; // internal (guess)
- const Double_t ksecX3 = -3.123 * fgkmm;
- const Double_t ksecY3 = -14.618 * fgkmm;
- const Double_t ksecR3 = -0.6 * fgkmm; // external
- //const Double_t ksecDip1 = 8.035 * fgkmm;
-
- const Double_t ksecX4 = +11.280 * fgkmm;
- const Double_t ksecY4 = -14.473 * fgkmm;
- const Double_t ksecR4 = +0.8 * fgkmm; // internal
- const Double_t ksecX5 = +19.544 * fgkmm;
- const Double_t ksecY5 = +10.961 * fgkmm;
- const Double_t ksecR5 = +0.8 * fgkmm; // internal
- //const Double_t ksecDip2 = 4.553 * fgkmm;
-
- const Double_t ksecX6 = +10.830 * fgkmm;
- const Double_t ksecY6 = +16.858 * fgkmm;
- const Double_t ksecR6 = +0.6 * fgkmm; // internal
- const Double_t ksecX7 = +11.581 * fgkmm;
- const Double_t ksecY7 = +13.317 * fgkmm;
- const Double_t ksecR7 = -0.6 * fgkmm; // external
- //const Double_t ksecDip3 = 6.978 * fgkmm;
-
- const Double_t ksecX8 = -0.733 * fgkmm;
- const Double_t ksecY8 = +17.486 * fgkmm;
- const Double_t ksecR8 = +0.6 * fgkmm; // internal
- const Double_t ksecX9 = +0.562 * fgkmm;
- //const Double_t ksecY9 = +14.486 * fgkmm; // correction by
- const Double_t ksecY9 = +14.107 * fgkmm; // Alberto
- const Double_t ksecR9 = -0.6 * fgkmm; // external
- //const Double_t ksecDip4 = 6.978 * fgkmm;
-
- const Double_t ksecX10 = -12.252 * fgkmm;
- const Double_t ksecY10 = +16.298 * fgkmm;
- const Double_t ksecR10 = +0.6 * fgkmm; // internal
- const Double_t ksecX11 = -10.445 * fgkmm;
- const Double_t ksecY11 = +13.162 * fgkmm;
- const Double_t ksecR11 = -0.6 * fgkmm; // external
- //const Double_t ksecDip5 = 6.978 * fgkmm;
-
- const Double_t ksecX12 = -22.276 * fgkmm;
- const Double_t ksecY12 = +12.948 * fgkmm;
- const Double_t ksecR12 = +0.85 * fgkmm; // internal
- const Double_t ksecR13 = -0.8 * fgkmm; // external
- const Double_t ksecAngleSide13 = 36.0 * fgkDegree;
-
- const Int_t ksecNRadii = 20;
- const Int_t ksecNPointsPerRadii = 4;
- const Int_t ksecNCoolingTubeDips = 6;
-
- // Since the rounded parts are approximated by a regular polygon
- // and a cooling tube of the propper diameter must fit, a scaling factor
- // increases the size of the polygon for the tube to fit.
- //const Double_t ksecRCoolScale = 1./TMath::Cos(TMath::Pi()/(Double_t)ksecNPointsPerRadii);
- const Double_t ksecZEndLen = 30.000 * fgkmm;
- //const Double_t ksecZFlangLen = 45.000 * fgkmm;
- const Double_t ksecTl = 0.860 * fgkmm;
- const Double_t ksecCthick2 = 0.600 * fgkmm;
- //const Double_t ksecCthick3 = 1.80 * fgkmm;
- //const Double_t ksecSidelen = 22.0 * fgkmm;
- //const Double_t ksecSideD5 = 3.679 * fgkmm;
- //const Double_t ksecSideD12 = 7.066 * fgkmm;
- const Double_t ksecRCoolOut = 2.400 * fgkmm;
- const Double_t ksecRCoolIn = 2.000 * fgkmm;
- const Double_t ksecDl1 = 5.900 * fgkmm;
- const Double_t ksecDl2 = 8.035 * fgkmm;
- const Double_t ksecDl3 = 4.553 * fgkmm;
- const Double_t ksecDl4 = 6.978 * fgkmm;
- const Double_t ksecDl5 = 6.978 * fgkmm;
- const Double_t ksecDl6 = 6.978 * fgkmm;
- const Double_t ksecCoolTubeThick = 0.04 * fgkmm;
- const Double_t ksecCoolTubeROuter = 2.6 * fgkmm;
- const Double_t ksecCoolTubeFlatX = 3.696 * fgkmm;
- const Double_t ksecCoolTubeFlatY = 0.68 * fgkmm;
- //const Double_t ksecBeamX0 = 0.0 * fgkmm; // guess
- //const Double_t ksecBeamY0 = (15.223 + 40.) * fgkmm; // guess
-
- // redefine some of the points already defined above
- // in the format of arrays (???)
- const Int_t ksecNPoints = (ksecNPointsPerRadii + 1) * ksecNRadii + 8;
- Double_t secX[ksecNRadii] = {
- ksecX0, ksecX1, -1000.0,
- ksecX2, ksecX3, -1000.0,
- ksecX4, ksecX5, -1000.0,
- ksecX6, ksecX7, -1000.0,
- ksecX8, ksecX9, -1000.0,
- ksecX10, ksecX11, -1000.0,
- ksecX12, -1000.0
- };
- Double_t secY[ksecNRadii] = {
- ksecY0, ksecY1, -1000.0,
- ksecY2, ksecY3, -1000.0,
- ksecY4, ksecY5, -1000.0,
- ksecY6, ksecY7, -1000.0,
- ksecY8, ksecY9, -1000.0,
- ksecY10, ksecY11, -1000.0,
- ksecY12, -1000.0
- };
- Double_t secR[ksecNRadii] = {
- ksecR0, ksecR1, -.5 * ksecDipLength - ksecDipRadii,
- ksecR2, ksecR3, -.5 * ksecDipLength - ksecDipRadii,
- ksecR4, ksecR5, -.5 * ksecDipLength - ksecDipRadii,
- ksecR6, ksecR7, -.5 * ksecDipLength - ksecDipRadii,
- ksecR8, ksecR9, -.5 * ksecDipLength - ksecDipRadii,
- ksecR10, ksecR11, -.5 * ksecDipLength - ksecDipRadii,
- ksecR12, ksecR13
- };
- /*
- Double_t secDip[ksecNRadii] = {
- 0., 0., ksecDip0, 0., 0., ksecDip1,
- 0., 0., ksecDip2, 0., 0., ksecDip3,
- 0., 0., ksecDip4, 0., 0., ksecDip5,
- 0., 0.
- };
- */
- Double_t secX2[ksecNRadii];
- Double_t secY2[ksecNRadii];
- Double_t secR2[ksecNRadii] = {
- ksecR0, ksecR1, ksecRCoolOut,
- ksecR2, ksecR3, ksecRCoolOut,
- ksecR4, ksecR5, ksecRCoolOut,
- ksecR6, ksecR7, ksecRCoolOut,
- ksecR8, ksecR9, ksecRCoolOut,
- ksecR10, ksecR11, ksecRCoolOut,
- ksecR12, ksecR13
- };
- Double_t secDip2[ksecNCoolingTubeDips] = {
- ksecDl1, ksecDl2, ksecDl3,
- ksecDl4, ksecDl5, ksecDl6
- };
- Double_t secX3[ksecNRadii];
- Double_t secY3[ksecNRadii];
- const Int_t ksecDipIndex[ksecNCoolingTubeDips] = {2, 5, 8, 11, 14, 17};
- Double_t secAngleStart[ksecNRadii];
- Double_t secAngleEnd[ksecNRadii];
- Double_t secAngleStart2[ksecNRadii];
- Double_t secAngleEnd2[ksecNRadii];
- Double_t secAngleTurbo[ksecNCoolingTubeDips] = {0., 0., 0., 0., 0., 0.0};
- //Double_t secAngleStart3[ksecNRadii];
- //Double_t secAngleEnd3[ksecNRadii];
- Double_t xpp[ksecNPoints], ypp[ksecNPoints];
- Double_t xpp2[ksecNPoints], ypp2[ksecNPoints];
- Double_t *xp[ksecNRadii], *xp2[ksecNRadii];
- Double_t *yp[ksecNRadii], *yp2[ksecNRadii];
- TGeoXtru *sA0, *sA1, *sB0, *sB1;
- TGeoEltu *sTA0, *sTA1;
- TGeoTube *sTB0, *sTB1; //,*sM0;
- TGeoRotation *rot;
- TGeoTranslation *trans;
- TGeoCombiTrans *rotrans;
- Double_t t, t0, t1, a, b, x0, y0, x1, y1;
- Int_t i, j, k, m;
- Bool_t tst;
-
- if(!moth) {
- AliError("Container volume (argument) is NULL");
- return;
- }
- for(i = 0; i < ksecNRadii; i++) {
- xp[i] = &(xpp[i*(ksecNPointsPerRadii+1)]);
- yp[i] = &(ypp[i*(ksecNPointsPerRadii+1)]);
- xp2[i] = &(xpp2[i*(ksecNPointsPerRadii+1)]);
- yp2[i] = &(ypp2[i*(ksecNPointsPerRadii+1)]);
- secX2[i] = secX[i];
- secY2[i] = secY[i];
- secX3[i] = secX[i];
- secY3[i] = secY[i];
- }
-
- // find starting and ending angles for all but cooling tube sections
- secAngleStart[0] = 0.5 * ksecAngleSide13;
- for(i = 0; i < ksecNRadii - 2; i++) {
- tst = kFALSE;
- for(j = 0; j < ksecNCoolingTubeDips; j++) tst = (tst || i == ksecDipIndex[j]);
- if (tst) continue;
- tst = kFALSE;
- for(j = 0; j < ksecNCoolingTubeDips; j++) tst = (tst || (i+1) == ksecDipIndex[j]);
- if (tst) j = i+2; else j = i+1;
- AnglesForRoundedCorners(secX[i], secY[i], secR[i], secX[j], secY[j], secR[j], t0, t1);
- secAngleEnd[i] = t0;
- secAngleStart[j] = t1;
- if(secR[i] > 0.0 && secR[j] > 0.0) {
- if(secAngleStart[i] > secAngleEnd[i]) secAngleEnd[i] += 360.0;
- }
- secAngleStart2[i] = secAngleStart[i];
- secAngleEnd2[i] = secAngleEnd[i];
- } // end for i
- secAngleEnd[ksecNRadii-2] = secAngleStart[ksecNRadii-2]
- + (secAngleEnd[ksecNRadii-5] - secAngleStart[ksecNRadii-5]);
- if (secAngleEnd[ksecNRadii-2] < 0.0) secAngleEnd[ksecNRadii-2] += 360.0;
- secAngleStart[ksecNRadii-1] = secAngleEnd[ksecNRadii-2] - 180.0;
- secAngleEnd[ksecNRadii-1] = secAngleStart[0];
- secAngleStart2[ksecNRadii-2] = secAngleStart[ksecNRadii-2];
- secAngleEnd2[ksecNRadii-2] = secAngleEnd[ksecNRadii-2];
- secAngleStart2[ksecNRadii-1] = secAngleStart[ksecNRadii-1];
- secAngleEnd2[ksecNRadii-1] = secAngleEnd[ksecNRadii-1];
-
- // find location of circle last rounded corner.
- i = 0;
- j = ksecNRadii - 2;
- t0 = TanD(secAngleStart[i]-90.);
- t1 = TanD(secAngleEnd[j]-90.);
- t = secY[i] - secY[j];
- // NOTE: secR[i=0] < 0; secR[j=18] > 0; and secR[j+1=19] < 0
- t += (-secR[i]+secR[j+1]) * SinD(secAngleStart[i]);
- t -= (secR[j]-secR[j+1]) * SinD(secAngleEnd[j]);
- t += t1 * secX[j] - t0*secX[i];
- t += t1 * (secR[j] - secR[j+1]) * CosD(secAngleEnd[j]);
- t -= t0 * (-secR[i]+secR[j+1]) * CosD(secAngleStart[i]);
- secX[ksecNRadii-1] = t / (t1-t0);
- secY[ksecNRadii-1] = TanD(90. + 0.5*ksecAngleSide13) * (secX[ksecNRadii-1] - secX[0]) + secY[0];
- secX2[ksecNRadii-1] = secX[ksecNRadii-1];
- secY2[ksecNRadii-1] = secY[ksecNRadii-1];
- secX3[ksecNRadii-1] = secX[ksecNRadii-1];
- secY3[ksecNRadii-1] = secY[ksecNRadii-1];
-
- // find location of cooling tube centers
- for(i = 0; i < ksecNCoolingTubeDips; i++) {
- j = ksecDipIndex[i];
- x0 = secX[j-1] + TMath::Abs(secR[j-1]) * CosD(secAngleEnd[j-1]);
- y0 = secY[j-1] + TMath::Abs(secR[j-1]) * SinD(secAngleEnd[j-1]);
- x1 = secX[j+1] + TMath::Abs(secR[j+1]) * CosD(secAngleStart[j+1]);
- y1 = secY[j+1] + TMath::Abs(secR[j+1]) * SinD(secAngleStart[j+1]);
- t0 = TMath::Sqrt((x0-x1)*(x0-x1)+(y0-y1)*(y0-y1));
- t = secDip2[i] / t0;
- a = x0+(x1-x0) * t;
- b = y0+(y1-y0) * t;
- if(i == 0) {
- // get location of tube center->Surface for locating
- // this sector around the beam pipe.
- // This needs to be double checked, but I need my notes for that.
- // (Bjorn Nilsen)
- xAAtubeCenter0 = x0 + (x1 - x0) * t * 0.5;
- yAAtubeCenter0 = y0 + (y1 - y0) * t * 0.5;
- }
- if(a + b*(a - x0) / (b - y0) > 0.0) {
- secX[j] = a + TMath::Abs(y1-y0) * 2.0 * ksecDipRadii/t0;
- secY[j] = b - TMath::Sign(2.0*ksecDipRadii,y1-y0) * (x1-x0)/t0;
- secX2[j] = a + TMath::Abs(y1-y0) * ksecTl/t0;
- secY2[j] = b - TMath::Sign(ksecTl,y1-y0) * (x1-x0) / t0;
- secX3[j] = a + TMath::Abs(y1-y0) * (2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY)/t0;
- secY3[j] = b - TMath::Sign(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY,y1-y0)*(x1-x0)/t0;
- }
- else {
- secX[j] = a - TMath::Abs(y1-y0)*2.0*ksecDipRadii/t0;
- secY[j] = b + TMath::Sign(2.0*ksecDipRadii,y1-y0)*(x1-x0)/t0;
- secX2[j] = a - TMath::Abs(y1-y0)*ksecTl/t0;
- secY2[j] = b + TMath::Sign(ksecTl,y1-y0)*(x1-x0)/t0;
- secX3[j] = a - TMath::Abs(y1-y0)*(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY)/t0;
- secY3[j] = b + TMath::Sign(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY,y1-y0)*(x1-x0)/t0;
- }
-
- // Set up Start and End angles to correspond to start/end of dips.
- t1 = (secDip2[i]-TMath::Abs(secR[j])) / t0;
- secAngleStart[j] = TMath::RadToDeg()*TMath::ATan2(y0+(y1-y0)*t1-secY[j],x0+(x1-x0)*t1-secX[j]);
- if (secAngleStart[j]<0.0) secAngleStart[j] += 360.0;
- secAngleStart2[j] = secAngleStart[j];
- t1 = (secDip2[i]+TMath::Abs(secR[j]))/t0;
- secAngleEnd[j] = TMath::RadToDeg()*TMath::ATan2(y0+(y1-y0)*t1-secY[j],x0+(x1-x0)*t1-secX[j]);
- if (secAngleEnd[j]<0.0) secAngleEnd[j] += 360.0;
- secAngleEnd2[j] = secAngleEnd[j];
- if (secAngleEnd[j]>secAngleStart[j]) secAngleEnd[j] -= 360.0;
- secR[j] = TMath::Sqrt(secR[j]*secR[j]+4.0*ksecDipRadii*ksecDipRadii);
- } // end for i
-
- // Special cases
- secAngleStart2[8] -= 360.;
- secAngleStart2[11] -= 360.;
-
- SPDsectorShape(ksecNRadii, secX, secY, secR, secAngleStart, secAngleEnd,
- ksecNPointsPerRadii, m, xp, yp);
-
- // Fix up dips to be square.
- for(i = 0; i < ksecNCoolingTubeDips; i++) {
- j = ksecDipIndex[i];
- t = 0.5*ksecDipLength+ksecDipRadii;
- t0 = TMath::RadToDeg()*TMath::ATan(2.0*ksecDipRadii/t);
- t1 = secAngleEnd[j] + t0;
- t0 = secAngleStart[j] - t0;
- x0 = xp[j][1] = secX[j] + t*CosD(t0);
- y0 = yp[j][1] = secY[j] + t*SinD(t0);
- x1 = xp[j][ksecNPointsPerRadii-1] = secX[j] + t*CosD(t1);
- y1 = yp[j][ksecNPointsPerRadii-1] = secY[j] + t*SinD(t1);
- t0 = 1./((Double_t)(ksecNPointsPerRadii-2));
- for(k = 2; k < ksecNPointsPerRadii - 1; k++) {
- // extra points spread them out.
- t = ((Double_t)(k-1)) * t0;
- xp[j][k] = x0+(x1-x0) * t;
- yp[j][k] = y0+(y1-y0) * t;
- } // end for k
- secAngleTurbo[i] = -TMath::RadToDeg() * TMath::ATan2(y1-y0, x1-x0);
- if(GetDebug(3)) {
- AliInfo(Form("i=%d -- angle=%f -- x0,y0=(%f, %f) -- x1,y1=(%f, %f)", i, secAngleTurbo[i], x0, y0, x1, y1));
- }
- } // end for i
- sA0 = new TGeoXtru(2);
- sA0->SetName("ITS SPD Carbon fiber support Sector A0");
- sA0->DefinePolygon(m, xpp, ypp);
- sA0->DefineSection(0, -ksecDz);
- sA0->DefineSection(1, ksecDz);
-
- // store the edges of each XY segment which defines
- // one of the plane zones where staves will have to be placed
- fSPDsectorX0.Set(ksecNCoolingTubeDips);
- fSPDsectorY0.Set(ksecNCoolingTubeDips);
- fSPDsectorX1.Set(ksecNCoolingTubeDips);
- fSPDsectorY1.Set(ksecNCoolingTubeDips);
- Int_t ixy0, ixy1;
- for(i = 0; i < ksecNCoolingTubeDips; i++) {
- // Find index in xpp[] and ypp[] corresponding to where the
- // SPD ladders are to be attached. Order them according to
- // the ALICE numbering schema. Using array of indexes (+-1 for
- // cooling tubes. For any "bend/dip/edge, there are
- // ksecNPointsPerRadii+1 points involved.
- if(i == 0) j = 1;
- else if (i == 1) j = 0;
- else j = i;
- ixy0 = (ksecDipIndex[j]-1) * (ksecNPointsPerRadii+1) + (ksecNPointsPerRadii);
- ixy1 = (ksecDipIndex[j]+1) * (ksecNPointsPerRadii+1);
- fSPDsectorX0[i] = sA0->GetX(ixy0);
- fSPDsectorY0[i] = sA0->GetY(ixy0);
- fSPDsectorX1[i] = sA0->GetX(ixy1);
- fSPDsectorY1[i] = sA0->GetY(ixy1);
- }
-
- //printf("SectorA#%d ",0);
- InsidePoint(xpp[m-1], ypp[m-1], xpp[0], ypp[0], xpp[1], ypp[1], ksecCthick, xpp2[0], ypp2[0]);
- for(i = 1; i < m - 1; i++) {
- j = i / (ksecNPointsPerRadii+1);
- //printf("SectorA#%d ",i);
- InsidePoint(xpp[i-1], ypp[i-1], xpp[i], ypp[i], xpp[i+1], ypp[i+1], ksecCthick, xpp2[i], ypp2[i]);
- }
- //printf("SectorA#%d ",m);
- InsidePoint(xpp[m-2], ypp[m-2], xpp[m-1], ypp[m-1], xpp[0], ypp[0], ksecCthick, xpp2[m-1], ypp2[m-1]);
- // Fix center value of cooling tube dip and
- // find location of cooling tube centers
- for(i = 0; i < ksecNCoolingTubeDips; i++) {
- j = ksecDipIndex[i];
- x0 = xp2[j][1];
- y0 = yp2[j][1];
- x1 = xp2[j][ksecNPointsPerRadii-1];
- y1 = yp2[j][ksecNPointsPerRadii-1];
- t0 = TMath::Sqrt((x0-x1)*(x0-x1)+(y0-y1)*(y0-y1));
- t = secDip2[i]/t0;
- for(k = 2; k < ksecNPointsPerRadii - 1; k++) {
- // extra points spread them out.
- t = ((Double_t)(k-1)) * t0;
- xp2[j][k] = x0+(x1-x0) * t;
- yp2[j][k] = y0+(y1-y0) * t;
- }
- } // end for i
- sA1 = new TGeoXtru(2);
- sA1->SetName("ITS SPD Carbon fiber support Sector Air A1");
- sA1->DefinePolygon(m, xpp2, ypp2);
- sA1->DefineSection(0, -ksecDz);
- sA1->DefineSection(1, ksecDz);
-
- // Error in TGeoEltu. Semi-axis X must be < Semi-axis Y (?).
- sTA0 = new TGeoEltu("ITS SPD Cooling Tube TA0", 0.5 * ksecCoolTubeFlatY, 0.5 * ksecCoolTubeFlatX, ksecDz);
- sTA1 = new TGeoEltu("ITS SPD Cooling Tube coolant TA1",
- sTA0->GetA() - ksecCoolTubeThick,
- sTA0->GetB()-ksecCoolTubeThick,ksecDz);
-
- SPDsectorShape(ksecNRadii, secX2, secY2, secR2, secAngleStart2, secAngleEnd2,
- ksecNPointsPerRadii, m, xp, yp);
-
- sB0 = new TGeoXtru(2);
- sB0->SetName("ITS SPD Carbon fiber support Sector End B0");
- sB0->DefinePolygon(m, xpp, ypp);
- sB0->DefineSection(0, ksecDz);
- sB0->DefineSection(1, ksecDz + ksecZEndLen);
-
- //printf("SectorB#%d ",0);
- InsidePoint(xpp[m-1], ypp[m-1], xpp[0], ypp[0], xpp[1], ypp[1], ksecCthick2, xpp2[0], ypp2[0]);
- for(i = 1; i < m - 1; i++) {
- t = ksecCthick2;
- for(k = 0; k < ksecNCoolingTubeDips; k++)
- if((i/(ksecNPointsPerRadii+1))==ksecDipIndex[k])
- if(!(ksecDipIndex[k]*(ksecNPointsPerRadii+1) == i ||
- ksecDipIndex[k]*(ksecNPointsPerRadii+1) + ksecNPointsPerRadii == i))
- t = ksecRCoolOut-ksecRCoolIn;
- //printf("SectorB#%d ",i);
- InsidePoint(xpp[i-1], ypp[i-1], xpp[i], ypp[i], xpp[i+1], ypp[i+1], t, xpp2[i], ypp2[i]);
- }
- //printf("SectorB#%d ",m);
- InsidePoint(xpp[m-2], ypp[m-2], xpp[m-1], ypp[m-1], xpp[0], ypp[0], ksecCthick2, xpp2[m-1], ypp2[m-1]);
- sB1 = new TGeoXtru(2);
- sB1->SetName("ITS SPD Carbon fiber support Sector Air End B1");
- sB1->DefinePolygon(m, xpp2, ypp2);
- sB1->DefineSection(0, ksecDz);
- sB1->DefineSection(1, ksecDz + ksecLen);
- sTB0 = new TGeoTube("ITS SPD Cooling Tube End TB0", 0.0,
- 0.5 * ksecCoolTubeROuter, 0.5 * ksecLen);
- sTB1 = new TGeoTube("ITS SPD Cooling Tube End coolant TB0", 0.0,
- sTB0->GetRmax() - ksecCoolTubeThick, 0.5 * ksecLen);
-
- if(GetDebug(3)) {
- if(medSPDcf) medSPDcf->Dump(); else AliInfo("medSPDcf = 0");
- if(medSPDss) medSPDss->Dump(); else AliInfo("medSPDss = 0");
- if(medSPDair) medSPDair->Dump(); else AliInfo("medSPDAir = 0");
- if(medSPDcoolfl) medSPDcoolfl->Dump(); else AliInfo("medSPDcoolfl = 0");
- sA0->InspectShape();
- sA1->InspectShape();
- sB0->InspectShape();
- sB1->InspectShape();
- }
-
- // create the assembly of the support and place staves on it
- TGeoVolumeAssembly *vM0 = new TGeoVolumeAssembly("ITSSPDSensitiveVirtualvolumeM0");
- StavesInSector(vM0);
- // create other volumes with some graphical settings
- TGeoVolume *vA0 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorA0", sA0, medSPDcf);
- vA0->SetVisibility(kTRUE);
- vA0->SetLineColor(4); // Blue
- vA0->SetLineWidth(1);
- vA0->SetFillColor(vA0->GetLineColor());
- vA0->SetFillStyle(4010); // 10% transparent
- TGeoVolume *vA1 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorAirA1", sA1, medSPDair);
- vA1->SetVisibility(kTRUE);
- vA1->SetLineColor(7); // light Blue
- vA1->SetLineWidth(1);
- vA1->SetFillColor(vA1->GetLineColor());
- vA1->SetFillStyle(4090); // 90% transparent
- TGeoVolume *vTA0 = new TGeoVolume("ITSSPDCoolingTubeTA0", sTA0, medSPDss);
- vTA0->SetVisibility(kTRUE);
- vTA0->SetLineColor(1); // Black
- vTA0->SetLineWidth(1);
- vTA0->SetFillColor(vTA0->GetLineColor());
- vTA0->SetFillStyle(4000); // 0% transparent
- TGeoVolume *vTA1 = new TGeoVolume("ITSSPDCoolingTubeFluidTA1", sTA1, medSPDcoolfl);
- vTA1->SetVisibility(kTRUE);
- vTA1->SetLineColor(6); // Purple
- vTA1->SetLineWidth(1);
- vTA1->SetFillColor(vTA1->GetLineColor());
- vTA1->SetFillStyle(4000); // 0% transparent
- TGeoVolume *vB0 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndB0", sB0, medSPDcf);
- vB0->SetVisibility(kTRUE);
- vB0->SetLineColor(4); // Blue
- vB0->SetLineWidth(1);
- vB0->SetFillColor(vB0->GetLineColor());
- vB0->SetFillStyle(4010); // 10% transparent
- TGeoVolume *vB1 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndAirB1", sB1, medSPDair);
- vB1->SetVisibility(kTRUE);
- vB1->SetLineColor(7); // light Blue
- vB1->SetLineWidth(1);
- vB1->SetFillColor(vB1->GetLineColor());
- vB1->SetFillStyle(4090); // 90% transparent
- TGeoVolume *vTB0 = new TGeoVolume("ITSSPDCoolingTubeEndTB0", sTB0, medSPDss);
- vTB0->SetVisibility(kTRUE);
- vTB0->SetLineColor(1); // Black
- vTB0->SetLineWidth(1);
- vTB0->SetFillColor(vTB0->GetLineColor());
- vTB0->SetFillStyle(4000); // 0% transparent
- TGeoVolume *vTB1 = new TGeoVolume("ITSSPDCoolingTubeEndFluidTB1", sTB1, medSPDcoolfl);
- vTB1->SetVisibility(kTRUE);
- vTB1->SetLineColor(6); // Purple
- vTB1->SetLineWidth(1);
- vTB1->SetFillColor(vTB1->GetLineColor());
- vTB1->SetFillStyle(4000); // 0% transparent
-
- // add volumes to mother container passed as argument of this method
- moth->AddNode(vM0,1,0); // Add virtual volume to mother
- vA0->AddNode(vA1,1,0); // Put air inside carbon fiber.
- vB0->AddNode(vB1,1,0); // Put air inside carbon fiber.
- vTA0->AddNode(vTA1,1,0); // Put air inside carbon fiber.
- vTB0->AddNode(vTB1,1,0); // Put air inside carbon fiber.
- for(i = 0; i < ksecNCoolingTubeDips; i++) {
- x0 = secX3[ksecDipIndex[i]];
- y0 = secY3[ksecDipIndex[i]];
- t = 90.0 - secAngleTurbo[i];
- trans = new TGeoTranslation("", x0, y0, 0.5 * (sB1->GetZ(0) + sB1->GetZ(1)));
- vB1->AddNode(vTB0, i+1, trans);
- rot = new TGeoRotation("", 0.0, 0.0, t);
- rotrans = new TGeoCombiTrans("", x0, y0, 0.0, rot);
- vM0->AddNode(vTA0, i+1, rotrans);
- } // end for i
- vM0->AddNode(vA0, 1, 0);
- vM0->AddNode(vB0, 1, 0);
- // Reflection.
- vM0->AddNode(vB0, 2, new TGeoRotation("", 90., 0., 90., 90., 180., 0.));
- if(GetDebug(3)){
- vM0->PrintNodes();
- vA0->PrintNodes();
- vA1->PrintNodes();
- vB0->PrintNodes();
- vB1->PrintNodes();
- vTA0->PrintNodes();
- vTA1->PrintNodes();
- vTB0->PrintNodes();
- vTB1->PrintNodes();
- }
-}
-//
-//__________________________________________________________________________________________
-Bool_t AliITSv11GeometrySPD::GetSectorMountingPoints
-(Int_t index, Double_t &x0, Double_t &y0, Double_t &x1, Double_t &y1) const
-{
- //
- // Returns the edges of the straight borders in the SPD sector shape,
- // which are used to mount staves on them.
- // Coordinate system is that of the carbon fiber sector volume.
- // ---
- // Index numbering is as follows:
- // /5
- // /\/4
- // 1\ \/3
- // 0|___\/2
- // ---
- // Arguments [the ones passed by reference contain output values]:
- // Int_t index --> location index according to above scheme [0-5]
- // Double_t &x0 --> (by ref) x0 location or the ladder sector [cm]
- // Double_t &y0 --> (by ref) y0 location of the ladder sector [cm]
- // Double_t &x1 --> (by ref) x1 location or the ladder sector [cm]
- // Double_t &y1 --> (by ref) y1 location of the ladder sector [cm]
- // TGeoManager *mgr --> The TGeo builder
- // ---
- // The location is described by a line going from (x0, y0) to (x1, y1)
- // ---
- // Returns kTRUE if no problems encountered.
- // Returns kFALSE if a problem was encountered (e.g.: shape not found).
- //
-
- Int_t isize = fSPDsectorX0.GetSize();
- x0 = x1 = y0 = y1 = 0.0;
- if(index < 0 || index > isize) {
- AliError(Form("index = %d: allowed 0 --> %", index, isize));
- return kFALSE;
- }
-
- x0 = fSPDsectorX0[index];
- x1 = fSPDsectorX1[index];
- y0 = fSPDsectorY0[index];
- y1 = fSPDsectorY1[index];
-
- return kTRUE;
+ TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
+ rot2->SetName("rotPatch");
+ rot2->RotateX(90.0);
+ rot2->RotateY(163.0);
+ //rot2->RotateZ(132.5);
+
+ // add collectors only on side C
+ if (sideC)
+ {
+ TGeoTranslation *trCollBox = new TGeoTranslation(xloc - 0.5*kPlateLength + 0.5*kCollLength, 0.0, +0.5*(kPlateThickness+1.1*kCollThickness));
+ TGeoRotation *rotCollTube = new TGeoRotation(*gGeoIdentity);
+ rotCollTube->RotateY(90.0);
+ TGeoCombiTrans *trCollTube = new TGeoCombiTrans(xloc + 0.5*kCollTubeLength - (0.5*kPlateLength - kCollLength), 0.0, +0.5*(kPlateThickness+2.0*kCollTubeRadius+kCollTubeThick), rotCollTube);
+ container[0]->AddNode(volCollBox, 1, trCollBox);
+ container[0]->AddNode(volCollTube, 1, trCollTube);
+ }
+
+ Double_t dxPatch = 2.9;
+ Double_t dzPatch = 2.8;
+ TGeoCombiTrans *tr2 = new TGeoCombiTrans(1.7*ext2Length - dxPatch, 0.0, dzPatch, rot2);
+ container[3]->AddNode(volPatch, 0, tr2);
+
+ xloc = shTube->GetRmax();
+ yloc = shTube->GetRmax();
+ zloc = shTube->GetDz() - shTube->GetRmax() - kYtoHalfStave;
+ container[1]->AddNode(volTubeA, 1,
+ new TGeoTranslation(-xloc, -yloc, zloc));
+ container[2]->AddNode(volTubeC, 1,
+ new TGeoTranslation(-xloc, -yloc, zloc));
+
+ xloc = shTube->GetRmax();
+ yloc = (shCylTub->GetDz())*SinD(angrot) - shTube->GetRmax();
+ zloc = (shCylTub->GetDz())*CosD(angrot) + shTube->GetRmax() +kYtoHalfStave;
+ container[1]->AddNode(volCylTubA, 1,
+ new TGeoCombiTrans(-xloc, yloc,-zloc,
+ new TGeoRotation("",0.,angrot,0.)));
+ container[2]->AddNode(volCylTubC, 1,
+ new TGeoCombiTrans(-xloc, yloc,-zloc,
+ new TGeoRotation("",0.,angrot,0.)));
+
+ xloc = shOptFibs->GetRmax() + 2*shTube->GetRmax();
+ yloc = 1.6*shOptFibs->GetRmax();
+ zloc = shOptFibs->GetDZ() - shTube->GetRmax() - kYtoHalfStave;
+ container[1]->AddNode(volOptFibs, 1,
+ new TGeoTranslation(-xloc, -yloc, zloc));
+ container[2]->AddNode(volOptFibs, 1,
+ new TGeoTranslation(-xloc, -yloc, zloc));
+
+ yloc = shWatCool->GetRmax();
+ zloc = (2*shTube->GetDz() - shTube->GetRmax() - kYtoHalfStave)/2;
+ container[4]->AddNode(volWatCool, 1,
+ new TGeoTranslation(0, -yloc, zloc));
+
+ container[4]->AddNode(volWCPltT, 1,
+ new TGeoTranslation(0, -yloc, zloc));
+
+ yloc -= shWCPltB->GetDY();
+ xloc = shWatCool->GetRmax() + shWCPltB->GetDX();
+ container[4]->AddNode(volWCPltB, 1,
+ new TGeoTranslation( xloc, -yloc, zloc));
+ container[4]->AddNode(volWCPltB, 2,
+ new TGeoTranslation(-xloc, -yloc, zloc));
+
+ yloc = shWatCool->GetRmax();
+ zloc -= shWatCool->GetDz();
+ container[4]->AddNode(volFitt, 1,
+ new TGeoTranslation(0, -yloc, zloc));
+
+ // Finally create the list of assemblies and return it to the caller
+ TList* conemodulelist = new TList();
+ conemodulelist->Add(container[0]);
+ conemodulelist->Add(container[1]);
+ conemodulelist->Add(container[2]);
+ conemodulelist->Add(container[3]);
+ conemodulelist->Add(container[4]);
+
+ return conemodulelist;
}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::SPDsectorShape
-(Int_t n,
- const Double_t *xc, const Double_t *yc, const Double_t *r,
- const Double_t *ths, const Double_t *the,
- Int_t npr, Int_t &m, Double_t **xp, Double_t **yp) const
+
+//______________________________________________________________________
+void AliITSv11GeometrySPD::CreateCones(TGeoVolume *moth) const
{
-
- // Code to compute the points that make up the shape of the SPD
- // Carbon fiber support sections
- // Inputs:
- // Int_t n size of arrays xc,yc, and r.
- // Double_t *xc array of x values for radii centers.
- // Double_t *yc array of y values for radii centers.
- // Double_t *r array of signed radii values.
- // Double_t *ths array of starting angles [degrees].
- // Double_t *the array of ending angles [degrees].
- // Int_t npr the number of lines segments to aproximate the arc.
- // Outputs (arguments passed by reference):
- // Int_t m the number of enetries in the arrays *xp[npr+1] and *yp[npr+1].
- // Double_t **xp array of x coordinate values of the line segments
- // which make up the SPD support sector shape.
- // Double_t **yp array of y coordinate values of the line segments
- // which make up the SPD support sector shape.
- //
-
- Int_t i, k;
- Double_t t, t0, t1;
-
- m = n*(npr + 1);
- if(GetDebug(2)) {
- cout <<" X \t Y \t R \t S \t E" << m << endl;
- for(i = 0; i < n; i++) {
- cout << "{" << xc[i] << ", ";
- cout << yc[i] << ", ";
- cout << r[i] << ", ";
- cout << ths[i] << ", ";
- cout << the[i] << "}, " << endl;
- }
+ //
+ // Places all services modules in the mother reference system
+ //
+ // Created: ?? ??? 2008 Alberto Pulvirenti
+ // Updated: 03 May 2010 Mario Sitta
+ // Updated: 04 Jul 2010 Mario Sitta Water cooling
+ //
+
+ const Int_t kNumberOfModules = 10;
+
+ const Double_t kInnerRadius = 80.775*fgkmm;
+ const Double_t kZTrans = 452.000*fgkmm;
+ const Double_t kAlphaRot = 46.500*fgkDegree;
+ const Double_t kAlphaSpaceCool = 9.200*fgkDegree;
+
+ TList* modulelistA = CreateConeModule(kFALSE, 90-kAlphaRot);
+ TList* modulelistC = CreateConeModule(kTRUE , 90-kAlphaRot);
+ TList* &modulelist = modulelistC;
+ TGeoVolumeAssembly* module, *moduleA, *moduleC;
+
+ Double_t xloc, yloc, zloc;
+
+ //Double_t angle[10] = {18., 54., 90., 126., 162., -18., -54., -90., -126., -162.};
+ // anglem for cone modules (cables and cooling tubes)
+ // anglep for pathc panels
+ Double_t anglem[10] = {18., 54., 90., 126., 162., 198., 234., 270., 306., 342.};
+ Double_t anglep[10] = {18., 62., 90., 115., 162., 198., 242., 270., 295., 342.};
+// Double_t angle1m[10] = {23., 53., 90., 127., 157., 203.0, 233.0, 270.0, 307.0, 337.0};
+// Double_t angle2m[10] = {18., 53., 90., 126., 162., 198.0, 233.0, 270.0, 309.0, 342.0};
+// Double_t angle1c[10] = {23., 53., 90., 124., 157., 203.0, 233.0, 270.0, 304.0, 337.0};
+// Double_t angle2c[10] = {18., 44., 90., 126., 162., 198.0, 223.0, 270.0, 309.0, 342.0};
+
+ // First add the cables
+ moduleA = (TGeoVolumeAssembly*)modulelistA->At(0);
+ moduleC = (TGeoVolumeAssembly*)modulelistC->At(0);
+ for (Int_t i = 0; i < kNumberOfModules; i++) {
+ TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
+ rot1->RotateY(-kAlphaRot);
+ rot1->RotateZ(anglem[i]);
+ xloc = kInnerRadius*CosD(anglem[i]);
+ yloc = kInnerRadius*SinD(anglem[i]);
+ zloc = kZTrans;
+ moth->AddNode(moduleA, 2*i+2,
+ new TGeoCombiTrans( xloc, yloc, zloc, rot1));
+
+ TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
+ rot2->RotateY(180.-kAlphaRot);
+ rot2->RotateZ(anglem[i]);
+ xloc = kInnerRadius*CosD(anglem[i]);
+ yloc = kInnerRadius*SinD(anglem[i]);
+ zloc = kZTrans;
+ moth->AddNode(moduleC, 2*i+1,
+ new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
+ }
+
+ // Then the cooling tubes on Side A
+ module = (TGeoVolumeAssembly*)modulelist->At(1);
+ Double_t anglec;
+ for (Int_t i = 0; i < kNumberOfModules; i++) {
+ anglec = anglem[i] + kAlphaSpaceCool;
+ TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
+ rot1->RotateX(-90.0+kAlphaRot-0.04); // 0.04 fixes small overlap
+ rot1->RotateZ(-90.0+anglec);
+ xloc = kInnerRadius*CosD(anglec);
+ yloc = kInnerRadius*SinD(anglec);
+ zloc = kZTrans+0.162; // 0.162 fixes small overlap
+ moth->AddNode(module, 2*i+2,
+ new TGeoCombiTrans( xloc, yloc, zloc, rot1));
+ }
+
+ // And the cooling tubes on Side C
+ module = (TGeoVolumeAssembly*)modulelist->At(2);
+ for (Int_t i = 0; i < kNumberOfModules; i++) {
+ anglec = anglem[i] - kAlphaSpaceCool;
+ TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
+ rot2->RotateX(-90.0+kAlphaRot-0.04); // 0.04 fixes small overlap
+ rot2->RotateY(180.);
+ rot2->RotateZ(90.0+anglec);
+ xloc = kInnerRadius*CosD(anglec);
+ yloc = kInnerRadius*SinD(anglec);
+ zloc = kZTrans+0.162; // 0.162 fixes small overlap
+ moth->AddNode(module, 2*i+1,
+ new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
+ }
+
+ // Then the water cooling tubes
+ module = (TGeoVolumeAssembly*)modulelist->At(4);
+ for (Int_t i = 1; i < kNumberOfModules; i++) { // i = 1,2,...,9
+ if (i != 5) { // There is no tube in this position
+ anglec = (anglem[i-1]+anglem[i])/2;
+ TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
+ rot1->RotateX(-90.0+kAlphaRot);
+ rot1->RotateZ(-90.0+anglec);
+ xloc = kInnerRadius*CosD(anglec);
+ yloc = kInnerRadius*SinD(anglec);
+ zloc = kZTrans;
+ moth->AddNode(module, 2*i+2,
+ new TGeoCombiTrans( xloc, yloc, zloc, rot1));
+
+ TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
+ rot2->RotateX(-90.0+kAlphaRot);
+ rot2->RotateY(180.);
+ rot2->RotateZ(90.0+anglec);
+ xloc = kInnerRadius*CosD(anglec);
+ yloc = kInnerRadius*SinD(anglec);
+ zloc = kZTrans;
+ moth->AddNode(module, 2*i+1,
+ new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
}
-
- if (GetDebug(3)) cout << "Double_t sA0 = [" << n*(npr+1)+1<<"][";
- if (GetDebug(4)) cout << "3] {";
- else if(GetDebug(3)) cout <<"2] {";
- t0 = (Double_t)npr;
- for(i = 0; i < n; i++) {
- t1 = (the[i] - ths[i]) / t0;
- if(GetDebug(5)) cout << "t1 = " << t1 << endl;
- for(k = 0; k <= npr; k++) {
- t = ths[i] + ((Double_t)k) * t1;
- xp[i][k] = TMath::Abs(r[i]) * CosD(t) + xc[i];
- yp[i][k] = TMath::Abs(r[i]) * SinD(t) + yc[i];
- if(GetDebug(3)) {
- cout << "{" << xp[i][k] << "," << yp[i][k];
- if (GetDebug(4)) cout << "," << t;
- cout << "},";
- } // end if GetDebug
- } // end for k
- if(GetDebug(3)) cout << endl;
- } // end of i
- if(GetDebug(3)) cout << "{" << xp[0][0] << ", " << yp[0][0];
- if(GetDebug(4)) cout << "," << ths[0];
- if(GetDebug(3)) cout << "}}" << endl;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolume* AliITSv11GeometrySPD::CreateLadder
-(Int_t layer,TArrayD &sizes, TGeoManager *mgr) const
-{
- // Creates the "ladder" = silicon sensor + 5 chips.
- // Returns a TGeoVolume containing the following components:
- // - the sensor (TGeoBBox), whose name depends on the layer
- // - 5 identical chips (TGeoBBox)
- // - a guard ring around the sensor (subtraction of TGeoBBoxes),
- // which is separated from the rest of sensor because it is not
- // a sensitive part
- // - bump bondings (TGeoBBox stripes for the whole width of the
- // sensor, one per column).
- // ---
- // Arguments:
- // 1 - the owner layer (MUST be 1 or 2 or a fatal error is raised)
- // 2 - a TArrayD passed by reference, which contains some relevant
- // sizes of this object:
- // size[0] = 'thickness' (the direction orthogonal to the ALICE
- // Z axis, along which the different parts of the
- // stave are superimposed on each other)
- // size[1] = 'length' (the direction along the ALICE Z axis)
- // size[2] = 'width' (the direction orthogonal to both the
- // above ones)
- // 3 - the used TGeoManager
-
- // ** CRITICAL CHECK **
- // layer number can be ONLY 1 or 2
- if (layer != 1 && layer != 2) AliFatal("Layer number MUST be 1 or 2");
-
- // ** MEDIA **
- // instantiate all required media
- TGeoMedium *medAir = GetMedium("AIR$",mgr);
- TGeoMedium *medSPDSiChip = GetMedium("SPD SI CHIP$",mgr);// SPD SI CHIP
- TGeoMedium *medSi = GetMedium("SI$",mgr);
- TGeoMedium *medBumpBond = GetMedium("COPPER$",mgr); // ??? BumpBond
-
- // ** SIZES **
- // for the chip, also the spacing between them is required
- Double_t chipThickness = fgkmm * 0.150;
- Double_t chipWidth = fgkmm * 15.950;
- Double_t chipLength = fgkmm * 13.600;
- Double_t chipSpacing = fgkmm * 0.400;
- // for the sensor, we define the area of sensitive volume
- // while the guard ring is added as a separate piece
- Double_t sensThickness = fgkmm * 0.200;
- Double_t sensLength = fgkmm * 69.600;
- Double_t sensWidth = fgkmm * 12.800;
- Double_t guardRingWidth = fgkmm * 0.560;
- // bump bond is defined as a small stripe of height = 0.012 mm
- // and a suitable width to keep the same volume it has
- // before being compressed (a line of spheres of 0.025 mm radius)
- Double_t bbLength = fgkmm * 0.042;
- Double_t bbWidth = sensWidth;
- Double_t bbThickness = fgkmm * 0.012;
- Double_t bbPos = 0.080; // Z position w.r. to left pixel edge
-
- // ** VOLUMES **
- // for readability reasons, create references to
- // the overall sizes which will be returned in the TArrayD
- if (sizes.GetSize() != 3) sizes.Set(3);
- Double_t &thickness = sizes[0];
- Double_t &length = sizes[1];
- Double_t &width = sizes[2];
- // the container is a box which exactly enclose all the stuff;
- // it is filled with air and named according to the layer number
- width = chipWidth;
- length = sensLength + 2.0*guardRingWidth;
- thickness = sensThickness + chipThickness + bbThickness;
- //TGeoVolume *container = mgr->MakeBox(Form("LAY%d_LADDER", layer),
- // medAir, 0.5*width, 0.5*thickness, 0.5*length);
- // We must have the x coordinate of this container conresponding to
- // the x corrdinate of the sensitive volume. In order to do that we
- // are going to create the container with a local reference system
- // that is not in the middle of the box. This need to call directly
- // the constructor of the shape, with an option :
- Double_t xSens = 0.5 * (width - sensWidth - 2.0*guardRingWidth);
- Double_t originShift[3] = {-xSens, 0., 0.};
- TGeoBBox *shapeContainer = new TGeoBBox(0.5*width, 0.5*thickness, 0.5*length, originShift);
- TGeoVolume *container = new TGeoVolume(Form("LAY%d_LADDER",layer), shapeContainer, medAir);
- // the chip
- TGeoVolume *volChip = mgr->MakeBox
- ("CHIP", medSPDSiChip, 0.5*chipWidth, 0.5*chipThickness, 0.5*chipLength);
- // the sensor
- TGeoVolume *volSens = mgr->MakeBox
- (GetSenstiveVolumeName(layer), medSi, 0.5*sensWidth, 0.5*sensThickness, 0.5*sensLength);
- // the guard ring shape is the subtraction of two boxes with the same center.
- TGeoBBox *shIn = new TGeoBBox(0.5*sensWidth, sensThickness, 0.5*sensLength);
- TGeoBBox *shOut = new TGeoBBox
- (0.5*sensWidth + guardRingWidth, 0.5*sensThickness, 0.5*sensLength + guardRingWidth);
- shIn->SetName("innerBox");
- shOut->SetName("outerBox");
- TGeoCompositeShape *shBorder = new TGeoCompositeShape("", "outerBox-innerBox");
- TGeoVolume *volBorder = new TGeoVolume("GUARD_RING", shBorder, medSi);
- // bump bonds for one whole column
- TGeoVolume *volBB = mgr->MakeBox
- ("BB", medBumpBond, 0.5*bbWidth, 0.5*bbThickness, 0.5*bbLength);
- // set colors of all objects for visualization
- volSens->SetLineColor(kYellow + 1);
- volChip->SetLineColor(kGreen);
- volBorder->SetLineColor(kYellow + 3);
-
- // ** MOVEMENTS **
- // translation for the sensor parts: direction of width and
- // thickness (moved up)
- Double_t ySens = 0.5 * (thickness - sensThickness);
- Double_t zSens = 0.0;
- // We want that the x of the ladder is the same as the one of its sensitive volume
- TGeoTranslation *trSens = new TGeoTranslation(xSens - xSens, ySens, zSens);
- // translation for the bump bonds:
- // keep same y used for sensors, but change the Z
- TGeoTranslation *trBB[160];
- Double_t x = xSens - xSens;
- Double_t y = 0.5 * (thickness - bbThickness) - sensThickness;
- Double_t z = -0.5 * sensLength + guardRingWidth + fgkmm*0.425 - bbPos;
- Int_t i;
- for (i = 0; i < 160; i++) {
- trBB[i] = new TGeoTranslation(x, y, z);
- switch(i) {
- case 31:
- case 63:
- case 95:
- case 127:
- z += fgkmm * 0.625 + fgkmm * 0.2;
- break;
- default:
- z += fgkmm * 0.425;
- } // end switch
- } // end for i
- // translations for the chip box: direction of length and
- // thickness (moved down)
- TGeoTranslation *trChip[5] = {0, 0, 0, 0, 0};
- x = -xSens;
- y = 0.5 * (chipThickness - thickness);
- z = 0.0;
- for (i = 0; i < 5; i++) {
- z = -0.5*length + guardRingWidth
- + (Double_t)i*chipSpacing + ((Double_t)(i) + 0.5)*chipLength;
- trChip[i] = new TGeoTranslation(x, y, z);
- } // end for i
-
- // add nodes to container
- container->AddNode(volSens, 1, trSens);
- container->AddNode(volBorder, 1, trSens);
- for (i = 0; i < 160; i++) container->AddNode(volBB, i, trBB[i]);
- for (i = 0; i < 5; i++) container->AddNode(volChip, i + 2, trChip[i]);
-
- // return the container
- return container;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolume* AliITSv11GeometrySPD::CreateClip
-(TArrayD &sizes, TGeoManager *mgr) const
-{
- //
- // Creates the carbon fiber clips which are added to the central ladders.
- // They have a complicated shape which is approximated by a TGeoXtru
- // Implementation of a single clip over an half-stave.
- // It has a complicated shape which is approximated to a section like this:
- //
- // 6
- // /\ .
- // 7 //\\ 5
- // / 1\\___________________4
- // 0 \___________________
- // 2 3
- // with a finite thickness for all the shape
- // Its local reference frame is such that point A corresponds to origin.
- //
-
- Double_t fullLength = fgkmm * 12.6; // = x4 - x0
- Double_t flatLength = fgkmm * 5.4; // = x4 - x3
- Double_t inclLongLength = fgkmm * 5.0; // = 5-6
- Double_t inclShortLength = fgkmm * 2.0; // = 6-7
- Double_t fullHeight = fgkmm * 2.8; // = y6 - y3
- Double_t thickness = fgkmm * 0.2; // thickness
- Double_t totalLength = fgkmm * 52.0; // total length in Z
- Double_t holeSize = fgkmm * 4.0; // dimension of cubic hole inserted for pt1000
- Double_t angle1 = 27.0; // supplementary of angle DCB
- Double_t angle2; // angle DCB
- Double_t angle3; // angle of GH with vertical
-
- angle2 = 0.5 * (180.0 - angle1);
- angle3 = 90.0 - TMath::ACos(fullLength - flatLength - inclLongLength*TMath::Cos(angle1)) * TMath::RadToDeg();
-
- angle1 *= TMath::DegToRad();
- angle2 *= TMath::DegToRad();
- angle3 *= TMath::DegToRad();
-
- Double_t x[8], y[8];
-
- x[0] = 0.0;
- x[1] = x[0] + fullLength - flatLength - inclLongLength*TMath::Cos(angle1);
- x[2] = x[0] + fullLength - flatLength;
- x[3] = x[0] + fullLength;
- x[4] = x[3];
- x[5] = x[4] - flatLength + thickness * TMath::Cos(angle2);
- x[6] = x[1];
- x[7] = x[0];
-
- y[0] = 0.0;
- y[1] = y[0] + inclShortLength * TMath::Cos(angle3);
- y[2] = y[1] - inclLongLength * TMath::Sin(angle1);
- y[3] = y[2];
- y[4] = y[3] + thickness;
- y[5] = y[4];
- y[6] = y[1] + thickness;
- y[7] = y[0] + thickness;
-
- sizes.Set(7);
- sizes[0] = totalLength;
- sizes[1] = fullHeight;
- sizes[2] = y[2];
- sizes[3] = y[6];
- sizes[4] = x[0];
- sizes[5] = x[3];
- sizes[6] = x[2];
-
- TGeoXtru *shClip = new TGeoXtru(2);
- shClip->SetName("SHCLIP");
- shClip->DefinePolygon(8, x, y);
- shClip->DefineSection(0, -0.5*totalLength, 0., 0., 1.0);
- shClip->DefineSection(1, 0.5*totalLength, 0., 0., 1.0);
-
- TGeoBBox *shHole = new TGeoBBox("SH_CLIPHOLE", 0.5*holeSize, 0.5*holeSize, 0.5*holeSize);
- TGeoTranslation *tr1 = new TGeoTranslation("TR_CLIPHOLE1", x[2], 0.0, fgkmm*14.);
- TGeoTranslation *tr2 = new TGeoTranslation("TR_CLIPHOLE2", x[2], 0.0, 0.0);
- TGeoTranslation *tr3 = new TGeoTranslation("TR_CLIPHOLE3", x[2], 0.0, -fgkmm*14.);
- tr1->RegisterYourself();
- tr2->RegisterYourself();
- tr3->RegisterYourself();
-
- TString strExpr("SHCLIP-(");
- strExpr.Append(Form("%s:%s+", shHole->GetName(), tr1->GetName()));
- strExpr.Append(Form("%s:%s+", shHole->GetName(), tr2->GetName()));
- strExpr.Append(Form("%s:%s)", shHole->GetName(), tr3->GetName()));
- TGeoCompositeShape *shClipHole = new TGeoCompositeShape("SHCLIPHOLES", strExpr.Data());
-
- TGeoMedium *mat = GetMedium("ITSspdCarbonFiber", mgr);
- TGeoVolume *vClip = new TGeoVolume("clip", shClipHole, mat);
- vClip->SetLineColor(kGray + 2);
- return vClip;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateGroundingFoilSingle
-(Int_t type, TArrayD &sizes, TGeoManager *mgr) const
-{
- // Returns a TGeoVolume representing a single grounding foil layer.
- // This shape is used to create the two real foils of the GF (one in
- // kapton, and one in aluminum), and also to implement the glue
- // layers which link the GF to the carbon fiber support, and to the
- // ladders.
- // ---
- // The glue and kapton layers have exactly the same size, while
- // the aluminum foil has some small differences in its overall size
- // and in the dimensions of its holes. The first argument passed to
- // the function ("type") is used to choose between all these
- // possibilities:
- // - type = 0 --> kapton layer
- // - type = 1 --> aluminum layer
- // - type = 2 --> glue layer between support and GF
- // - type = 3 --> glue layer between GF and ladders
- // ---
- // The complete object is created as the sum of the following parts:
- // 1) the part which is connected to the chips, which is a
- // simple box with some box-shaped holes at regular intervals
- // 2) a trapezoidal connection where the Y size changes
- // 3) another box with a unique hole of the same shape and size as above
- // 4) another trapezoidal connection where the Y size changes
- // 5) a final part which is built as a sequence of 4 BOX volumes
- // where the first and the third are equal and the others have
- // same size in Y.
- // ---
- // The sizes of all parts are parameterized with variable names,
- // even if their value is fixed according to engineers' drawings.
- // ---
- // The returns value is a TGeoVolume object which contains all parts
- // of this layer. The 'sizes' argument passed by reference will
- // contain the three dimensions of the container and some other
- // values which upper level methods (stave assemblier) must know:
- // - sizes[0] = full thickness
- // - sizes[1] = full length
- // - sizes[2] = full width
- // - sizes[3] = hole length
- // - sizes[4] = hole width
- // - sizes[5] = position of first hole center
- // - sizes[6] = standard separation between holes
- // - sizes[7] = separation between 5th and 6th hole
- // - sizes[8] = separation between 10th and 11th hole
- // - sizes[9] = separation between the upper hole border and the
- // foil border
- // ** MEDIA **
- // - vacuum for the container volume
- // - kapton/aluminum/glue for the pysical volume
- TGeoMedium *mat = GetMedium("SPD KAPTON(POLYCH2)$", mgr);
- // ** SIZES **
- Double_t sizeZ = fgkmm * 0.05;
- Double_t part1X = fgkmm * 140.71;
- Double_t part2X = fgkmm * 2.48;
- Double_t part3X = fgkmm * 26.78;
- Double_t part4X = fgkmm * 4.00;
- Double_t part5X = fgkmm * 10.00;
- Double_t part6X = fgkmm * 24.40;
- Double_t part7X = fgkmm * 10.00;
- Double_t part8X = fgkmm * 24.81;
- Double_t sizeYMax = fgkmm * 15.95;
- Double_t sizeYMed1 = fgkmm * 15.00;
- Double_t sizeYMed2 = fgkmm * 11.00;
- Double_t sizeYMin = fgkmm * 4.40;
- Double_t holeX = fgkmm * 10.00;
- Double_t holeY = fgkmm * 7.50;
- Double_t holeFirstX = fgkmm * 7.05; // position of center of first hole
- Double_t holeSepX = fgkmm * 14.00; // separation between the
- // centers of two consecutive holes
- Double_t holeSepX1 = fgkmm * 1.42; // to be added after 4th hole in
- // volume 1
- Double_t holeSepY = fgkmm * 4.40; // dist between hole's and
- // volume's upper border
- Double_t holeAloneX = fgkmm * 13.28; // position of hole center in
- // box "part 3"
- // correct sizes/material in case we are on Aluminum foil
- if (type == 1) {
- mat = GetMedium("AL$", mgr);
- sizeZ = fgkmm * 0.025;
- part1X -= fgkmm * 0.2;
- part5X -= fgkmm * 0.2;
- part6X += fgkmm * 0.4;
- part7X -= fgkmm * 0.4;
- sizeYMax -= fgkmm * 0.4;
- sizeYMed1 -= fgkmm * 0.4;
- sizeYMed2 -= fgkmm * 0.4;
- sizeYMin -= fgkmm * 0.4;
- holeX += fgkmm * 0.4;
- holeY += fgkmm * 0.4;
- holeFirstX -= fgkmm * 0.2;
- holeSepY -= fgkmm * 0.4;
- } // end if type==1
-
- // correct sizes/material in case we are in a glue layer
- if (type == 2) {
- mat = GetMedium("EPOXY$", mgr); //??? GLUE_GF_SUPPORT
- sizeZ = fgkmm * 0.1175;
- } // end if type ==2
- if (type == 3) {
- mat = GetMedium("EPOXY$", mgr); //??? GLUE_GF_SUPPORT
- sizeZ = fgkmm * 0.1175 - fAlignmentGap;
- if (sizeZ <= 0.0) {
- AliFatal("Too large gap thickness.");
- return 0;
- } // end if sizeZ<=0
- }// end if type==3
- // initialize the argument TArrayD
- if (sizes.GetSize() != 10) sizes.Set(10);
- Double_t &thickness = sizes[0];
- Double_t &length = sizes[1];
- Double_t &width = sizes[2];
- // compute full length and width
- length = part1X+part2X+part3X+part4X+part5X+part6X+part7X+part8X;
- width = sizeYMax;
- thickness = sizeZ;
- sizes[3] = holeX;
- sizes[4] = holeY;
- sizes[5] = holeFirstX;
- sizes[6] = holeSepX;
- sizes[7] = holeSepX + holeSepX1;
- sizes[8] = fgkmm * 22.0; // the last separation is not used in the
- // rest, and is implemented from scratch
- sizes[9] = holeSepY;
- // ** OBJECT NAMES **
- // define names for the object
- char stype[20];
- if (type == 0) strcpy(stype, "KAP");
- else if (type == 1) strcpy(stype, "ALU");
- else if (type == 2) strcpy(stype, "GLUE1");
- else if (type == 3) strcpy(stype, "GLUE2");
- else {
- AliFatal(Form("Type %d not allowed for grounding foil", type));
- } // end if else
- // ** VOLUMES **
- // grounding foil world, bounded exactly around the limits of the structure
- // TGeoVolume *container = mgr->MakeBox(Form("GFOIL_%s", stype),
- // air, 0.5*length, 0.5*sizeYMax, 0.5*sizeZ);
- TGeoVolumeAssembly *container = new TGeoVolumeAssembly(Form("GFOIL_%s",
- stype));
- // === PART 1: box with holes ===
- TGeoBBox *shBox1 = 0, *shHole = 0;
- shBox1 = new TGeoBBox(Form("GF%s_BOX1", stype), 0.5*part1X, 0.5*sizeYMax,
- 0.5*sizeZ);
- shHole = new TGeoBBox(Form("GF%s_HOLE", stype), 0.5*holeX, 0.5*holeY,
- 0.5*sizeZ + 0.01);
- // define the position of all holes and compose the expression
- // to define the composite shape (box - holes)
- Double_t firstX = -0.5*part1X + holeFirstX;
- Double_t transY = 0.5*sizeYMax - holeSepY - 0.5*holeY;
- Double_t transX;
- TGeoTranslation *transHole[10];
- TString strComposite(Form("%s - (", shBox1->GetName()));
- for (Int_t i = 0; i < 10; i++) {
- transX = firstX + (Double_t)i * holeSepX;
- if (i > 4) transX += holeSepX1;
- transHole[i] = new TGeoTranslation(Form("TGF%s_HOLE%d", stype, i),
- transX, transY, 0.0);
- transHole[i]->RegisterYourself();
- strComposite.Append(Form("%s:%s", shHole->GetName(),
- transHole[i]->GetName()));
- if (i < 9) strComposite.Append("+"); else strComposite.Append(")");
- } // end for i
- // create composite shape
- TGeoCompositeShape *shPart1 = new TGeoCompositeShape(
- Form("GF%s_PART1_SHAPE", stype), strComposite.Data());
- // create the volume
- TGeoVolume *volPart1 = new TGeoVolume(Form("GF%s_PART1", stype),
- shPart1, mat);
- // === PART 2: first trapezoidal connection
- TGeoArb8 *shTrap1 = new TGeoArb8(0.5*sizeZ);
- shTrap1->SetVertex(0, -0.5*part2X, 0.5*sizeYMax);
- shTrap1->SetVertex(1, 0.5*part2X, 0.5*sizeYMax);
- shTrap1->SetVertex(2, 0.5*part2X, 0.5*sizeYMax - sizeYMed1);
- shTrap1->SetVertex(3, -0.5*part2X, -0.5*sizeYMax);
- shTrap1->SetVertex(4, -0.5*part2X, 0.5*sizeYMax);
- shTrap1->SetVertex(5, 0.5*part2X, 0.5*sizeYMax);
- shTrap1->SetVertex(6, 0.5*part2X, 0.5*sizeYMax - sizeYMed1);
- shTrap1->SetVertex(7, -0.5*part2X, -0.5*sizeYMax);
- TGeoVolume *volPart2 = new TGeoVolume(Form("GF%s_PART2", stype),
- shTrap1, mat);
- // === PART 3: other box with one hole
- TGeoBBox *shBox2 = 0;
- shBox2 = new TGeoBBox(Form("GF%s_BOX2", stype), 0.5*part3X,
- 0.5*sizeYMed1, 0.5*sizeZ);
- // define the position of the hole
- transX = holeAloneX - 0.5*part3X;
- transY -= 0.5*(sizeYMax - sizeYMed1);
- TGeoTranslation *transHoleAlone = new TGeoTranslation(
- Form("TGF%s_HOLE_ALONE", stype), transX, transY, 0.0);
- transHoleAlone->RegisterYourself();
- // create composite shape
- TGeoCompositeShape *shPart3 = new TGeoCompositeShape(
- Form("GF%sPART3_SHAPE", stype),
- Form("%s - %s:%s", shBox2->GetName(),
- shHole->GetName(), transHoleAlone->GetName()));
- // create the volume
- TGeoVolume *volPart3 = new TGeoVolume(Form("GF%s_PART3", stype),
- shPart3, mat);
- // === PART 4: second trapezoidal connection
- TGeoArb8 *shTrap2 = new TGeoArb8(0.5*sizeZ);
- shTrap2->SetVertex(0, -0.5*part4X, 0.5*sizeYMed1);
- shTrap2->SetVertex(1, 0.5*part4X, 0.5*sizeYMed1);
- shTrap2->SetVertex(2, 0.5*part4X, 0.5*sizeYMed1 - sizeYMed2);
- shTrap2->SetVertex(3, -0.5*part4X, -0.5*sizeYMed1);
- shTrap2->SetVertex(4, -0.5*part4X, 0.5*sizeYMed1);
- shTrap2->SetVertex(5, 0.5*part4X, 0.5*sizeYMed1);
- shTrap2->SetVertex(6, 0.5*part4X, 0.5*sizeYMed1 - sizeYMed2);
- shTrap2->SetVertex(7, -0.5*part4X, -0.5*sizeYMed1);
- TGeoVolume *volPart4 = new TGeoVolume(Form("GF%s_PART4", stype),
- shTrap2, mat);
- // === PART 5 --> 8: sequence of boxes ===
- TGeoVolume *volPart5 = mgr->MakeBox(Form("GF%s_BOX3", stype), mat,
- 0.5*part5X, 0.5*sizeYMed2, 0.5*sizeZ);
- TGeoVolume *volPart6 = mgr->MakeBox(Form("GF%s_BOX4", stype), mat,
- 0.5*part6X, 0.5*sizeYMin , 0.5*sizeZ);
- TGeoVolume *volPart7 = mgr->MakeBox(Form("GF%s_BOX5", stype), mat,
- 0.5*part7X, 0.5*sizeYMed2, 0.5*sizeZ);
- TGeoVolume *volPart8 = mgr->MakeBox(Form("GF%s_BOX6", stype), mat,
- 0.5*part8X, 0.5*sizeYMin , 0.5*sizeZ);
- // === SET COLOR ===
- Color_t color = kRed + 3;
- if (type == 1) color = kGreen;
- if (type == 2 || type == 3) color = kYellow;
- volPart1->SetLineColor(color);
- volPart2->SetLineColor(color);
- volPart3->SetLineColor(color);
- volPart4->SetLineColor(color);
- volPart5->SetLineColor(color);
- volPart6->SetLineColor(color);
- volPart7->SetLineColor(color);
- volPart8->SetLineColor(color);
- // ** MOVEMENTS **
- transX = 0.5*(part1X - length);
- TGeoTranslation *transPart1 = new TGeoTranslation(transX, 0.0, 0.0);
- transX += 0.5*(part1X + part2X);
- TGeoTranslation *transPart2 = new TGeoTranslation(transX, 0.0, 0.0);
- transX += 0.5*(part2X + part3X);
- transY = 0.5*(sizeYMax - sizeYMed1);
- TGeoTranslation *transPart3 = new TGeoTranslation(transX, transY, 0.0);
- transX += 0.5*(part3X + part4X);
- TGeoTranslation *transPart4 = new TGeoTranslation(transX, transY, 0.0);
- transX += 0.5*(part4X + part5X);
- transY = 0.5*(sizeYMax - sizeYMed2);
- TGeoTranslation *transPart5 = new TGeoTranslation(transX, transY, 0.0);
- transX += 0.5*(part5X + part6X);
- transY = 0.5*(sizeYMax - sizeYMin);
- TGeoTranslation *transPart6 = new TGeoTranslation(transX, transY, 0.0);
- transX += 0.5*(part6X + part7X);
- transY = 0.5*(sizeYMax - sizeYMed2);
- TGeoTranslation *transPart7 = new TGeoTranslation(transX, transY, 0.0);
- transX += 0.5*(part7X + part8X);
- transY = 0.5*(sizeYMax - sizeYMin);
- TGeoTranslation *transPart8 = new TGeoTranslation(transX, transY, 0.0);
- // add the partial volumes to the container
- container->AddNode(volPart1, 1, transPart1);
- container->AddNode(volPart2, 2, transPart2);
- container->AddNode(volPart3, 3, transPart3);
- container->AddNode(volPart4, 4, transPart4);
- container->AddNode(volPart5, 5, transPart5);
- container->AddNode(volPart6, 6, transPart6);
- container->AddNode(volPart7, 7, transPart7);
- container->AddNode(volPart8, 8, transPart8);
- return container;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolume* AliITSv11GeometrySPD::CreateGroundingFoil
-(Bool_t isRight, TArrayD &sizes, TGeoManager *mgr) const
-{
- // Create a volume containing all parts of the grounding foil a
- // half-stave. The use of the TGeoXtru shape causes that in each
- // single component volume the Z axis lies perpendicularly to the
- // polygonal basis of this shape. Since we want that the Z axis
- // of this volume must coincide with the one of the ALICE global
- // reference frame, this requires some rotations of each component,
- // besides the necessary translations to place it correctly with
- // respect to the whole stave volume.
- // ---
- // Arguments:
- // 1: a boolean value to know if it is the grounding foir for
- // the right or left side
- // 2: a TArrayD which will contain the dimension of the container box:
- // - size[0] = length along Z (the beam line direction)
- // - size[1] = the 'width' of the stave, which defines, together
- // with Z, the plane of the carbon fiber support
- // - size[2] = 'thickness' (= the direction along which all
- // stave components are superimposed)
- // 3: the TGeoManager
- // ---
- // The return value is a TGeoBBox volume containing all grounding
- // foil components.
- // to avoid strange behaviour of the geometry manager,
- // create a suffix to be used in the names of all shapes
- char suf[5];
- if (isRight) strcpy(suf, "R"); else strcpy(suf, "L");
- // this volume will be created in order to ease its placement in
- // the half-stave; then, it is added here the small distance of
- // the "central" edge of each volume from the Z=0 plane in the stave
- // reference (which coincides with ALICE one)
- Double_t dist = fgkmm * 0.71;
- // create the component volumes and register their sizes in the
- // passed arrays for readability reasons, some reference variables
- // explicit the meaning of the array slots
- TArrayD kpSize(9), alSize(9), g1Size(9), g2Size(9);
- TGeoVolume *kpVol = CreateGroundingFoilSingle(0, kpSize, mgr);
- TGeoVolume *alVol = CreateGroundingFoilSingle(1, alSize, mgr);
- TGeoVolume *g1Vol = CreateGroundingFoilSingle(2, g1Size, mgr);
- TGeoVolume *g2Vol = CreateGroundingFoilSingle(3, g2Size, mgr);
- Double_t &kpLength = kpSize[1],&kpThickness=kpSize[0];//,&kpWidth=kpSize[2];
- Double_t &alLength = alSize[1],&alThickness=alSize[0];//,&alWidth=alSize[2];
- Double_t &g1Thickness = g1Size[0], &g2Thickness = g2Size[0];
-
- // create references for the final size object
- if (sizes.GetSize() != 3) sizes.Set(3);
- Double_t &fullThickness = sizes[0];
- Double_t &fullLength = sizes[1];
- Double_t &fullWidth = sizes[2];
- // kapton leads the larger dimensions of the foil
- // (including the cited small distance from Z=0 stave reference plane)
- // the thickness is the sum of the ones of all components
- fullLength = kpSize[1] + dist;
- fullWidth = kpSize[2];
- fullThickness = kpSize[0] + alSize[0] + g1Size[0] + g2Size[0];
- // create the container
- TGeoMedium *air = GetMedium("AIR$", mgr);
- TGeoVolume *container = mgr->MakeBox(Form("GFOIL_%s", suf), air,
- 0.5*fullThickness, 0.5*fullWidth, 0.5*fullLength);
- // create the common correction rotation (which depends of what side
- // we are building)
- TGeoRotation *rotCorr = new TGeoRotation(*gGeoIdentity);
- if (isRight) rotCorr->RotateY(90.0);
- else rotCorr->RotateY(-90.0);
- // compute the translations, which are in the length and thickness
- // directions
- Double_t x, y, z, shift = 0.0;
- if (isRight) shift = dist;
- // glue (bottom)
- x = -0.5*(fullThickness - g1Thickness);
- z = 0.5*(fullLength - kpLength) - shift;
- TGeoCombiTrans *g1Trans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
- // kapton
- x += 0.5*(g1Thickness + kpThickness);
- TGeoCombiTrans *kpTrans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
- // aluminum
- x += 0.5*(kpThickness + alThickness);
- z = 0.5*(fullLength - alLength) - shift - 0.5*(kpLength - alLength);
- TGeoCombiTrans *alTrans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
- // glue (top)
- x += 0.5*(alThickness + g2Thickness);
- z = 0.5*(fullLength - kpLength) - shift;
- TGeoCombiTrans *g2Trans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
-
- // add to container
- container->AddNode(kpVol, 0, kpTrans);
- container->AddNode(alVol, 0, alTrans);
- container->AddNode(g1Vol, 0, g1Trans);
- container->AddNode(g2Vol, 0, g2Trans);
- // to add the grease we remember the sizes of the holes, stored as
- // additional parameters in the kapton layer size:
- // - sizes[3] = hole length
- // - sizes[4] = hole width
- // - sizes[5] = position of first hole center
- // - sizes[6] = standard separation between holes
- // - sizes[7] = separation between 5th and 6th hole
- // - sizes[8] = separation between 10th and 11th hole
- // - sizes[9] = separation between the upper hole border and
- // the foil border
- Double_t holeLength = kpSize[3];
- Double_t holeWidth = kpSize[4];
- Double_t holeFirstZ = kpSize[5];
- Double_t holeSepZ = kpSize[6];
- Double_t holeSep5th6th = kpSize[7];
- Double_t holeSep10th11th = kpSize[8];
- Double_t holeSepY = kpSize[9];
- // volume (common)
- TGeoMedium *grease = GetMedium("SPD KAPTON(POLYCH2)$", mgr); // ??? GREASE
- TGeoVolume *hVol = mgr->MakeBox("GREASE", grease, 0.5*fullThickness,
- 0.5*holeWidth, 0.5*holeLength);
- hVol->SetLineColor(kBlue);
- // displacement of volumes in the container
- Int_t idx = 0;
- x = 0.0;
- y = 0.5*(fullWidth - holeWidth) - holeSepY;
- if (isRight) z = holeFirstZ - 0.5*fullLength + dist;
- else z = 0.5*fullLength - holeFirstZ - dist;
- for (Int_t i = 0; i < 11; i++) {
- TGeoTranslation *t = 0;
- t = new TGeoTranslation(x, y, -z);
- container->AddNode(hVol, idx++, t);
- if (i < 4) shift = holeSepZ;
- else if (i == 4) shift = holeSep5th6th;
- else if (i < 9) shift = holeSepZ;
- else shift = holeSep10th11th;
- if (isRight) z += shift;
- else z -= shift;
- }// end for i
- return container;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateMCM
-(Bool_t isRight, TArrayD &sizes, TGeoManager *mgr) const
-{
- // Assemblies all the components of the MCM and builds it as an
- // assembly, because its large thickness could cause inexistent
- // overlaps if all components were put into a true TGeoBBox.
- // This assembly contains:
- // - a layer of glue which has the same size of the MCM itself,
- // and it the lowest part
- // - the thin part of the MCM
- // - the chips on the MCM, according to the specifications from EDMS
- // - the cover which is superimposed to the part of the MCM with the chips
- // ---
- // Even if this is an assembly, the placement of objects is made in
- // such a way that they are virtually contained in an imaginary box
- // whose center is placed exactly in the middle of the occupied space
- // in all directions. This will ease the positioning of this object
- // in the final stave. The sizes of this virtual box are stored in
- // the array passed by reference.
- // ---
- // Arguments:
- // - a boolean flag to know if this is the left or right MCM, when
- // looking at the stave from above (i.e. the direction from which
- // one sees bus over ladders over grounding foil) and keeping the
- // upper border continuous.
- // - an array passed by reference which will contain the size of a
- // virtual box containing all this stuff
- // - a pointer to the used TGeoManager.
- // to avoid strange behaviour of the geometry manager,
- // create a suffix to be used in the names of all shapes
- char suf[5];
- if (isRight) strcpy(suf, "R"); else strcpy(suf, "L");
- // ** MEDIA **
- TGeoMedium *medBase = GetMedium("SPD KAPTON(POLYCH2)$",mgr);// ??? MCM BASE
- TGeoMedium *medGlue = GetMedium("EPOXY$",mgr); // ??? GlueMCM
- TGeoMedium *medChip = GetMedium("SPD SI CHIP$",mgr);
- TGeoMedium *medCap = GetMedium("AL$",mgr);
- // The shape of the MCM is divided into 3 sectors with different
- // widths (Y) and lengths (X), like in this sketch:
- //
- // 0 1 2
- // +---------------------+-----------------------------------+
- // | 4 sect 2 |
- // | 6 sect 1 /-------------------+
- // | sect 0 /--------------/ 3
- // +--------------------/ 5
- // 8 7
- //
- // the inclination of all oblique borders (6-7, 4-5) is always 45 degrees.
- // From drawings we can parametrize the dimensions of all these sectors,
- // then the shape of this part of the MCM is implemented as a
- // TGeoXtru centerd in the virtual XY space. Since this shape
- // is used twice (to define the MCM itself and the glue below it),
- // we need to define two different shapes with different thicknesses
- // and, since we place them in an assembly, we displace them
- // directly in the right place with respect to the local Z axis
- // (which is in the direction of thickness). The first step is
- // definig the relevant sizes of this shape:
- Int_t i, j;
- Double_t mcmThickness = fgkmm * 0.35;
- Double_t glueThickness = fAlignmentGap;
- Double_t sizeXtot = fgkmm * 105.6; // total distance 0-2
- // resp. 7-8, 5-6 and 3-4
- Double_t sizeXsector[3] = {fgkmm * 28.4, fgkmm * 41.4, fgkmm * 28.8};
- // resp. 0-8, 1-6 and 2-3
- Double_t sizeYsector[3] = {fgkmm * 15.0, fgkmm * 11.0, fgkmm * 8.0};
- Double_t sizeSep01 = fgkmm * 4.0; // x(6)-x(7)
- Double_t sizeSep12 = fgkmm * 3.0; // x(4)-x(5)
- // define sizes of chips (last is the thickest)
- Double_t chipLength[5] = { 4.00, 6.15, 3.85, 5.60, 18.00 };
- Double_t chipWidth[5] = { 3.00, 4.10, 3.85, 5.60, 5.45 };
- Double_t chipThickness[5] = { 0.60, 0.30, 0.30, 1.00, 1.20 };
- TString name[5];
- name[0] = "ANALOG";
- name[1] = "PILOT";
- name[2] = "GOL";
- name[3] = "RX40";
- name[4] = "OPTICAL";
- Color_t color[5] = { kCyan, kGreen, kYellow, kBlue, kOrange };
-
- // define the sizes of the cover
- Double_t capThickness = fgkmm * 0.3;
- Double_t capHeight = fgkmm * 1.7;
- // compute the total size of the virtual container box
- Double_t &thickness = sizes[0];
- Double_t &length = sizes[1];
- Double_t &width = sizes[2];
- length = sizeXtot;
- width = sizeYsector[0];
- thickness = glueThickness + mcmThickness + capHeight;
- // define all the relevant vertices of the polygon
- // which defines the transverse shape of the MCM.
- // These values are used to several purposes, and
- // for each one, some points must be excluded
- Double_t xRef[9], yRef[9];
- xRef[0] = -0.5*sizeXtot;
- yRef[0] = 0.5*sizeYsector[0];
- xRef[1] = xRef[0] + sizeXsector[0] + sizeSep01;
- yRef[1] = yRef[0];
- xRef[2] = -xRef[0];
- yRef[2] = yRef[0];
- xRef[3] = xRef[2];
- yRef[3] = yRef[2] - sizeYsector[2];
- xRef[4] = xRef[3] - sizeXsector[2];
- yRef[4] = yRef[3];
- xRef[5] = xRef[4] - sizeSep12;
- yRef[5] = yRef[4] - sizeSep12;
- xRef[6] = xRef[5] - sizeXsector[1];
- yRef[6] = yRef[5];
- xRef[7] = xRef[6] - sizeSep01;
- yRef[7] = yRef[6] - sizeSep01;
- xRef[8] = xRef[0];
- yRef[8] = -yRef[0];
- // the above points are defined for the "right" MCM (if ve view the
- // stave from above) in order to change to the "left" one, we must
- // change the sign to all X values:
- if (isRight) for (i = 0; i < 9; i++) xRef[i] = -xRef[i];
- // the shape of the MCM and glue layer are done excluding point 1,
- // which is not necessary and cause the geometry builder to get confused
- j = 0;
- Double_t xBase[8], yBase[8];
- for (i = 0; i < 9; i++) {
- if (i == 1) continue;
- xBase[j] = xRef[i];
- yBase[j] = yRef[i];
- j++;
- } // end for i
-
- // the MCM cover is superimposed over the sectors 1 and 2 only
- Double_t xCap[6], yCap[6];
- j = 0;
- for (i = 1; i <= 6; i++) {
- xCap[j] = xRef[i];
- yCap[j] = yRef[i];
- j++;
- } // end for i
-
- // define positions of chips,
- // which must be added to the bottom-left corner of MCM
- // and divided by 1E4;
- Double_t chipX[5], chipY[5];
- if (isRight) {
- chipX[0] = 666320.;
- chipX[1] = 508320.;
- chipX[2] = 381320.;
- chipX[3] = 295320.;
- chipX[4] = 150320.;
- chipY[0] = 23750.;
- chipY[1] = 27750.;
- chipY[2] = 20750.;
- chipY[3] = 42750.;
- chipY[4] = 39750.;
- } else {
- chipX[0] = 389730.;
- chipX[1] = 548630.;
- chipX[2] = 674930.;
- chipX[3] = 761430.;
- chipX[4] = 905430.;
- chipY[0] = 96250.;
- chipY[1] = 91950.;
- chipY[2] = 99250.;
- chipY[3] = 107250.;
- chipY[4] = 109750.;
- } // end for isRight
- for (i = 0; i < 5; i++) {
- chipX[i] *= 0.00001;
- chipY[i] *= 0.00001;
- if (isRight) {
- chipX[i] += xRef[3];
- chipY[i] += yRef[3];
- } else {
- chipX[i] += xRef[8];
- chipY[i] += yRef[8];
- } // end for isRight
- chipLength[i] *= fgkmm;
- chipWidth[i] *= fgkmm;
- chipThickness[i] *= fgkmm;
- } // end for i
- // create shapes for MCM
- Double_t z1, z2;
- TGeoXtru *shBase = new TGeoXtru(2);
- TGeoXtru *shGlue = new TGeoXtru(2);
- z1 = -0.5*thickness;
- z2 = z1 + glueThickness;
- shGlue->DefinePolygon(8, xBase, yBase);
- shGlue->DefineSection(0, z1, 0., 0., 1.0);
- shGlue->DefineSection(1, z2, 0., 0., 1.0);
- z1 = z2;
- z2 = z1 + mcmThickness;
- shBase->DefinePolygon(8, xBase, yBase);
- shBase->DefineSection(0, z1, 0., 0., 1.0);
- shBase->DefineSection(1, z2, 0., 0., 1.0);
-
- // create volumes of MCM
- TGeoVolume *volBase = new TGeoVolume("BASE", shBase, medBase);
- volBase->SetLineColor(kRed);
- TGeoVolume *volGlue = new TGeoVolume("GLUE", shGlue, medGlue);
- volGlue->SetLineColor(kYellow + 1);
-
- // to create the border of the MCM cover, it is required the
- // subtraction of two shapes the outer is created using the
- // reference points defined here
- TGeoXtru *shCapOut = new TGeoXtru(2);
- shCapOut->SetName(Form("SHCAPOUT%s", suf));
- z1 = z2;
- z2 = z1 + capHeight - capThickness;
- shCapOut->DefinePolygon(6, xCap, yCap);
- shCapOut->DefineSection(0, z1, 0., 0., 1.0);
- shCapOut->DefineSection(1, z2, 0., 0., 1.0);
- // the inner is built similarly but subtracting the thickness
- Double_t angle, cs;
- Double_t xin[6], yin[6];
- if (!isRight) {
- angle = 45.0;
- cs = TMath::Cos( 0.5*(TMath::Pi() - angle*TMath::DegToRad()) );
- xin[0] = xCap[0] + capThickness;
- yin[0] = yCap[0] - capThickness;
- xin[1] = xCap[1] - capThickness;
- yin[1] = yin[0];
- xin[2] = xin[1];
- yin[2] = yCap[2] + capThickness;
- xin[3] = xCap[3] - capThickness*cs;
- yin[3] = yin[2];
- xin[4] = xin[3] - sizeSep12;
- yin[4] = yCap[4] + capThickness;
- xin[5] = xin[0];
- yin[5] = yin[4];
- } else {
- angle = 45.0;
- cs = TMath::Cos( 0.5*(TMath::Pi() - angle*TMath::DegToRad()) );
- xin[0] = xCap[0] - capThickness;
- yin[0] = yCap[0] - capThickness;
- xin[1] = xCap[1] + capThickness;
- yin[1] = yin[0];
- xin[2] = xin[1];
- yin[2] = yCap[2] + capThickness;
- xin[3] = xCap[3] - capThickness*cs;
- yin[3] = yin[2];
- xin[4] = xin[3] + sizeSep12;
- yin[4] = yCap[4] + capThickness;
- xin[5] = xin[0];
- yin[5] = yin[4];
- } // end if isRight
- TGeoXtru *shCapIn = new TGeoXtru(2);
- shCapIn->SetName(Form("SHCAPIN%s", suf));
- shCapIn->DefinePolygon(6, xin, yin);
- shCapIn->DefineSection(0, z1 - 0.01, 0., 0., 1.0);
- shCapIn->DefineSection(1, z2 + 0.01, 0., 0., 1.0);
- // compose shapes
- TGeoCompositeShape *shCapBorder = new TGeoCompositeShape(
- Form("SHBORDER%s", suf),
- Form("%s-%s", shCapOut->GetName(),
- shCapIn->GetName()));
- // create volume
- TGeoVolume *volCapBorder = new TGeoVolume("CAPBORDER",shCapBorder,medCap);
- volCapBorder->SetLineColor(kGreen);
- // finally, we create the top of the cover, which has the same
- // shape of outer border and a thickness equal of the one othe
- // cover border one
- TGeoXtru *shCapTop = new TGeoXtru(2);
- z1 = z2;
- z2 = z1 + capThickness;
- shCapTop->DefinePolygon(6, xCap, yCap);
- shCapTop->DefineSection(0, z1, 0., 0., 1.0);
- shCapTop->DefineSection(1, z2, 0., 0., 1.0);
- TGeoVolume *volCapTop = new TGeoVolume("CAPTOP", shCapTop, medCap);
- volCapTop->SetLineColor(kBlue);
-
- // create container assembly
- TGeoVolumeAssembly *mcmAssembly = new TGeoVolumeAssembly("MCM");
-
- // add objects in the assembly
-
- // glue
- mcmAssembly->AddNode(volGlue, 0, gGeoIdentity);
- // mcm layer
- mcmAssembly->AddNode(volBase, 0, gGeoIdentity);
- // chips
- for (i = 0; i < 5; i++) {
- TGeoVolume *box = gGeoManager->MakeBox(name[i], medChip,
- 0.5*chipLength[i], 0.5*chipWidth[i], 0.5*chipThickness[i]);
- TGeoTranslation *tr = new TGeoTranslation(chipX[i], chipY[i],
- 0.5*(-thickness + chipThickness[i]) + mcmThickness +
- glueThickness);
- box->SetLineColor(color[i]);
- mcmAssembly->AddNode(box, 0, tr);
- } // end for i
- // cap border
- mcmAssembly->AddNode(volCapBorder, 0, gGeoIdentity);
- // cap top
- mcmAssembly->AddNode(volCapTop, 0, gGeoIdentity);
- return mcmAssembly;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolumeAssembly* AliITSv11GeometrySPD::CreatePixelBus
-(Bool_t isRight, TArrayD &sizes, TGeoManager *mgr) const
-{
- //
- // The pixel bus is implemented as a TGeoBBox with some objects on it,
- // which could affect the particle energy loss.
- // ---
- // In order to avoid confusion, the bus is directly displaced
- // according to the axis orientations which are used in the final stave:
- // X --> thickness direction
- // Y --> width direction
- // Z --> length direction
- //
-
-
- // ** MEDIA **
-
- //PIXEL BUS
- TGeoMedium *medBus = GetMedium("SPDBUS(AL+KPT+EPOX)$",mgr);
- TGeoMedium *medPt1000 = GetMedium("CERAMICS$",mgr); // ??? PT1000
- // Capacity
- TGeoMedium *medCap = GetMedium("SDD X7R capacitors$",mgr);
- // ??? Resistance
- TGeoMedium *medRes = GetMedium("SDD X7R capacitors$",mgr);
- // ** SIZES & POSITIONS **
- Double_t busLength = 170.501 * fgkmm; // length of plane part
- Double_t busWidth = 13.800 * fgkmm; // width
- Double_t busThickness = 0.280 * fgkmm; // thickness
- Double_t pt1000Length = fgkmm * 1.50;
- Double_t pt1000Width = fgkmm * 3.10;
- Double_t pt1000Thickness = fgkmm * 0.60;
- Double_t pt1000Y, pt1000Z[10];// position of the pt1000's along the bus
- Double_t capLength = fgkmm * 2.55;
- Double_t capWidth = fgkmm * 1.50;
- Double_t capThickness = fgkmm * 1.35;
- Double_t capY[2], capZ[2];
-
- Double_t resLength = fgkmm * 2.20;
- Double_t resWidth = fgkmm * 0.80;
- Double_t resThickness = fgkmm * 0.35;
- Double_t resY[2], resZ[2];
-
- // position of pt1000, resistors and capacitors depends on the
- // bus if it's left or right one
- if (!isRight) {
- pt1000Y = 64400.;
- pt1000Z[0] = 66160.;
- pt1000Z[1] = 206200.;
- pt1000Z[2] = 346200.;
- pt1000Z[3] = 486200.;
- pt1000Z[4] = 626200.;
- pt1000Z[5] = 776200.;
- pt1000Z[6] = 916200.;
- pt1000Z[7] = 1056200.;
- pt1000Z[8] = 1196200.;
- pt1000Z[9] = 1336200.;
- resZ[0] = 1397500.;
- resY[0] = 26900.;
- resZ[1] = 682500.;
- resY[1] = 27800.;
- capZ[0] = 1395700.;
- capY[0] = 45700.;
- capZ[1] = 692600.;
- capY[1] = 45400.;
- } else {
- pt1000Y = 66100.;
- pt1000Z[0] = 319700.;
- pt1000Z[1] = 459700.;
- pt1000Z[2] = 599700.;
- pt1000Z[3] = 739700.;
- pt1000Z[4] = 879700.;
- pt1000Z[5] = 1029700.;
- pt1000Z[6] = 1169700.;
- pt1000Z[7] = 1309700.;
- pt1000Z[8] = 1449700.;
- pt1000Z[9] = 1589700.;
- capY[0] = 44500.;
- capZ[0] = 266700.;
- capY[1] = 44300.;
- capZ[1] = 974700.;
- resZ[0] = 266500.;
- resY[0] = 29200.;
- resZ[1] = 974600.;
- resY[1] = 29900.;
- } // end if isRight
- Int_t i;
- pt1000Y *= 1E-4 * fgkmm;
- for (i = 0; i < 10; i++) {
- pt1000Z[i] *= 1E-4 * fgkmm;
- if (i < 2) {
- capZ[i] *= 1E-4 * fgkmm;
- capY[i] *= 1E-4 * fgkmm;
- resZ[i] *= 1E-4 * fgkmm;
- resY[i] *= 1E-4 * fgkmm;
- } // end if iM2
- } // end for i
-
- Double_t &fullLength = sizes[1];
- Double_t &fullWidth = sizes[2];
- Double_t &fullThickness = sizes[0];
- fullLength = busLength;
- fullWidth = busWidth;
- // add the thickness of the thickest component on bus (capacity)
- fullThickness = busThickness + capThickness;
- // ** VOLUMES **
- TGeoVolumeAssembly *container = new TGeoVolumeAssembly("PixelBus");
- TGeoVolume *bus = mgr->MakeBox("Bus", medBus, 0.5*busThickness,
- 0.5*busWidth, 0.5*busLength);
- TGeoVolume *pt1000 = mgr->MakeBox("PT1000", medPt1000,
- 0.5*pt1000Thickness, 0.5*pt1000Width, 0.5*pt1000Length);
- TGeoVolume *res = mgr->MakeBox("Resistor", medRes, 0.5*resThickness,
- 0.5*resWidth, 0.5*resLength);
- TGeoVolume *cap = mgr->MakeBox("Capacitor", medCap, 0.5*capThickness,
- 0.5*capWidth, 0.5*capLength);
- bus->SetLineColor(kYellow + 2);
- pt1000->SetLineColor(kGreen + 3);
- res->SetLineColor(kRed + 1);
- cap->SetLineColor(kBlue - 7);
- // ** MOVEMENTS AND POSITIONEMENT **
- // bus
- TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
- fullThickness), 0.0, 0.0);
- container->AddNode(bus, 0, trBus);
- Double_t zRef, yRef, x, y, z;
- if (isRight) {
- zRef = -0.5*fullLength;
- yRef = -0.5*fullWidth;
- } else {
- zRef = -0.5*fullLength;
- yRef = -0.5*fullWidth;
- } // end if isRight
- // pt1000
- x = 0.5*(pt1000Thickness - fullThickness) + busThickness;
- for (i = 0; i < 10; i++) {
- y = yRef + pt1000Y;
- z = zRef + pt1000Z[i];
- TGeoTranslation *tr = new TGeoTranslation(x, y, z);
- container->AddNode(pt1000, i, tr);
- } // end for i
- // capacitors
- x = 0.5*(capThickness - fullThickness) + busThickness;
- for (i = 0; i < 2; i++) {
- y = yRef + capY[i];
- z = zRef + capZ[i];
- TGeoTranslation *tr = new TGeoTranslation(x, y, z);
- container->AddNode(cap, i, tr);
- } // end for i
- // resistors
- x = 0.5*(resThickness - fullThickness) + busThickness;
- for (i = 0; i < 2; i++) {
- y = yRef + resY[i];
- z = zRef + resZ[i];
- TGeoTranslation *tr = new TGeoTranslation(x, y, z);
- container->AddNode(res, i, tr);
- } // end for i
-
- sizes[3] = yRef + pt1000Y;
- sizes[4] = zRef + pt1000Z[2];
- sizes[5] = zRef + pt1000Z[7];
-
- return container;
+ }
+
+ // Finally the optical patch panels
+ module = (TGeoVolumeAssembly*)modulelist->At(3);
+ for (Int_t i = 0; i < kNumberOfModules; i++) {
+ TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
+ rot1->RotateY(-kAlphaRot);
+ rot1->RotateZ(anglep[i]);
+ xloc = kInnerRadius*CosD(anglep[i]);
+ yloc = kInnerRadius*SinD(anglep[i]);
+ zloc = kZTrans;
+ moth->AddNode(module, 2*i+2,
+ new TGeoCombiTrans( xloc, yloc, zloc, rot1));
+
+ TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
+ rot2->RotateY(180.-kAlphaRot);
+ rot2->RotateZ(anglep[i]);
+ xloc = kInnerRadius*CosD(anglep[i]);
+ yloc = kInnerRadius*SinD(anglep[i]);
+ zloc = kZTrans;
+ moth->AddNode(module, 2*i+1,
+ new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
+ }
+
}
-//
-//__________________________________________________________________________________________
-TGeoVolume* AliITSv11GeometrySPD::CreateExtender
-(const Double_t *extenderParams, const TGeoMedium *extenderMedium, TArrayD& sizes) const
+
+
+//______________________________________________________________________
+TGeoVolume* AliITSv11GeometrySPD::CreateExtender(
+ const Double_t *extenderParams, const TGeoMedium *extenderMedium,
+ TArrayD& sizes) const
{
- // ------------------ CREATE AN EXTENDER ------------------------
- //
- // This function creates the following picture (in plane xOy)
- // Should be useful for the definition of the pixel bus and MCM extenders
- // The origin corresponds to point 0 on the picture, at half-width in Z direction
- //
- // Y 7 6 5
- // ^ +---+---------------------+
- // | / |
- // | / |
- // 0------> X / +---------------------+
- // / / 3 4
- // / /
- // 9 8 / /
- // +-----------+ /
- // | /
- // | /
- // ---> +-----------+---+
- // | 0 1 2
- // |
- // origin (0,0,0)
- //
- //
- // Takes 6 parameters in the following order :
- // |--> par 0 : inner length [0-1] / [9-8]
- // |--> par 1 : thickness ( = [0-9] / [4-5])
- // |--> par 2 : angle of the slope
- // |--> par 3 : total height in local Y direction
- // |--> par 4 : outer length [3-4] / [6-5]
- // |--> par 5 : width in local Z direction
- //
-
-
- Double_t slopeDeltaX = (extenderParams[3] - extenderParams[1] * TMath::Cos(extenderParams[2])) / TMath::Tan(extenderParams[2]);
-
- Double_t extenderXtruX[10] = {
- 0 ,
- extenderParams[0] ,
- extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) ,
- extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) + slopeDeltaX ,
- extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) + slopeDeltaX + extenderParams[4],
- extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) + slopeDeltaX + extenderParams[4],
- extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) + slopeDeltaX ,
- extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) + slopeDeltaX - extenderParams[1] * TMath::Sin(extenderParams[2]) ,
- extenderParams[0] ,
- 0
- } ;
-
- Double_t extenderXtruY[10] = {
- 0 ,
- 0 ,
- extenderParams[1] * (1-TMath::Cos(extenderParams[2])) ,
- extenderParams[3] - extenderParams[1] ,
- extenderParams[3] - extenderParams[1] ,
- extenderParams[3] ,
- extenderParams[3] ,
- extenderParams[3] - extenderParams[1] * (1-TMath::Cos(extenderParams[2])) ,
- extenderParams[1] ,
- extenderParams[1]
- } ;
-
- if (sizes.GetSize() != 3) sizes.Set(3);
- Double_t &thickness = sizes[0] ;
- Double_t &length = sizes[1] ;
- Double_t &width = sizes[2] ;
-
- thickness = extenderParams[3] ;
- width = extenderParams[5] ;
- length = extenderParams[0] + extenderParams[1] * TMath::Sin(extenderParams[2]) + slopeDeltaX + extenderParams[4] ;
-
- // creation of the volume
- TGeoXtru *extenderXtru = new TGeoXtru(2);
- TGeoVolume *extenderXtruVol = new TGeoVolume("EXTENDER",extenderXtru,extenderMedium) ;
- extenderXtru->DefinePolygon(10,extenderXtruX,extenderXtruY);
- extenderXtru->DefineSection(0,-0.5*extenderParams[4]);
- extenderXtru->DefineSection(1, 0.5*extenderParams[4]);
- return extenderXtruVol ;
+ //
+ // ------------------ CREATE AN EXTENDER ------------------------
+ //
+ // This function creates the following picture (in plane xOy)
+ // Should be useful for the definition of the pixel bus and MCM extenders
+ // The origin corresponds to point 0 on the picture, at half-width
+ // in Z direction
+ //
+ // Y 7 6 5
+ // ^ +---+---------------------+
+ // | / |
+ // | / |
+ // 0------> X / +---------------------+
+ // / / 3 4
+ // / /
+ // 9 8 / /
+ // +-----------+ /
+ // | /
+ // | /
+ // ---> +-----------+---+
+ // | 0 1 2
+ // |
+ // origin (0,0,0)
+ //
+ //
+ // Takes 6 parameters in the following order :
+ // |--> par 0 : inner length [0-1] / [9-8]
+ // |--> par 1 : thickness ( = [0-9] / [4-5])
+ // |--> par 2 : angle of the slope
+ // |--> par 3 : total height in local Y direction
+ // |--> par 4 : outer length [3-4] / [6-5]
+ // |--> par 5 : width in local Z direction
+ //
+ Double_t slopeDeltaX = (extenderParams[3] - extenderParams[1]
+ * TMath::Cos(extenderParams[2])) /
+ TMath::Tan(extenderParams[2]);
+ Double_t extenderXtruX[10] = {
+ 0 ,
+ extenderParams[0] ,
+ extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2]) ,
+ extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
+ slopeDeltaX ,
+ extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
+ slopeDeltaX + extenderParams[4],
+ extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
+ slopeDeltaX + extenderParams[4],
+ extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
+ slopeDeltaX ,
+ extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
+ slopeDeltaX - extenderParams[1] * TMath::Sin(extenderParams[2]) ,
+ extenderParams[0] ,
+ 0
+ };
+ Double_t extenderXtruY[10] = {
+ 0 ,
+ 0 ,
+ extenderParams[1] * (1-TMath::Cos(extenderParams[2])) ,
+ extenderParams[3] - extenderParams[1] ,
+ extenderParams[3] - extenderParams[1] ,
+ extenderParams[3] ,
+ extenderParams[3] ,
+ extenderParams[3]-extenderParams[1]*(1-TMath::Cos(extenderParams[2])) ,
+ extenderParams[1] ,
+ extenderParams[1]
+ };
+
+ if (sizes.GetSize() != 3) sizes.Set(3);
+ Double_t &thickness = sizes[0];
+ Double_t &length = sizes[1];
+ Double_t &width = sizes[2];
+
+ thickness = extenderParams[3];
+ width = extenderParams[5];
+ length = extenderParams[0]+extenderParams[1]*
+ TMath::Sin(extenderParams[2])+slopeDeltaX+extenderParams[4];
+
+ // creation of the volume
+ TGeoXtru *extenderXtru = new TGeoXtru(2);
+ TGeoVolume *extenderXtruVol = new TGeoVolume("ITSSPDextender",extenderXtru,
+ extenderMedium);
+ extenderXtru->DefinePolygon(10,extenderXtruX,extenderXtruY);
+ extenderXtru->DefineSection(0,-0.5*extenderParams[4]);
+ extenderXtru->DefineSection(1, 0.5*extenderParams[4]);
+ return extenderXtruVol;
}
//______________________________________________________________________
-TGeoVolumeAssembly* AliITSv11GeometrySPD::CreatePixelBusAndExtensions
-(Bool_t /*zpos*/, TGeoManager *mgr) const
+TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateHalfStave(Bool_t isRight,
+Int_t layer,Int_t idxCentral,Int_t idxSide,TArrayD &sizes,TGeoManager *mgr)
{
- //
- // Creates an assembly which contains the pixel bus and its extension
- // and the extension of the MCM.
- // By: Renaud Vernet
- // NOTE: to be defined its material and its extension in the outside direction
- //
-
- // ==== constants =====
-
- //get the media
- //TGeoMedium *medPixelBus = GetMedium("SPDBUS(AL+KPT+EPOX)$",mgr) ; // ??? PIXEL BUS
- TGeoMedium *medPBExtender = GetMedium("SDDKAPTON (POLYCH2)$",mgr) ; // ??? IXEL BUS EXTENDER
- TGeoMedium *medMCMExtender = GetMedium("SDDKAPTON (POLYCH2)$",mgr) ; // ??? MCM EXTENDER
-
- // //geometrical constants
- const Double_t kPbextenderThickness = 0.07 * fgkmm ;
- const Double_t kPbExtenderSlopeAngle = 70.0 * TMath::Pi()/180. ; //design=?? 70 deg. seems OK
- const Double_t kPbExtenderHeight = 1.92 * fgkmm ; // = 2.6 - (0.28+0.05+0.35) cf design
- const Double_t kPbExtenderWidthY = 11.0 * fgkmm ;
- const Double_t kMcmExtenderSlopeAngle = 70.0 * TMath::Pi()/180. ; //design=?? 70 deg. seems OK
- const Double_t kMcmExtenderThickness = 0.10 * fgkmm ;
- const Double_t kMcmExtenderHeight = 1.8 * fgkmm ;
- const Double_t kMcmExtenderWidthY = kPbExtenderWidthY ;
- // const Double_t groundingThickness = 0.07 * fgkmm ;
- // const Double_t grounding2pixelBusDz = 0.625 * fgkmm ;
- // const Double_t pixelBusThickness = 0.28 * fgkmm ;
- // const Double_t groundingWidthX = 170.501 * fgkmm ;
- // const Double_t pixelBusContactDx = 1.099 * fgkmm ;
- // const Double_t pixelBusWidthY = 13.8 * fgkmm ;
- // const Double_t pixelBusContactPhi = 20.0 * TMath::Pi()/180. ; //design=20 deg.
- // const Double_t pbExtenderTopZ = 2.72 * fgkmm ;
- // const Double_t mcmThickness = 0.35 * fgkmm ;
- // const Double_t halfStaveTotalLength = 247.64 * fgkmm ;
- // const Double_t deltaYOrigin = 15.95/2.* fgkmm ;
- // const Double_t deltaXOrigin = 1.1 * fgkmm ;
- // const Double_t deltaZOrigin = halfStaveTotalLength / 2. ;
- // const Double_t grounding2pixelBusDz2 = grounding2pixelBusDz+groundingThickness/2. + pixelBusThickness/2. ;
- // const Double_t pixelBusWidthX = groundingWidthX ;
- // const Double_t pixelBusRaiseLength = (pixelBusContactDx-pixelBusThickness*TMath::Sin(pixelBusContactPhi))/TMath::Cos(pixelBusContactPhi) ;
-
- // const Double_t pbExtenderBaseZ = grounding2pixelBusDz2 + pixelBusRaiseLength*TMath::Sin(pixelBusContactPhi) + 2*pixelBusThickness*TMath::Sin(pixelBusContactPhi)*TMath::Tan(pixelBusContactPhi) ;
- // const Double_t pbExtenderDeltaZ = pbExtenderTopZ-pbExtenderBaseZ ;
- // const Double_t pbExtenderEndPointX = 2*deltaZOrigin - groundingWidthX - 2*pixelBusThickness*TMath::Sin(pixelBusContactPhi) ;
- // const Double_t pbExtenderXtru3L = 1.5 * fgkmm ; //arbitrary ?
- // const Double_t pbExtenderXtru4L = (pbExtenderDeltaZ + pixelBusThickness*(TMath::Cos(extenderSlope)-2))/TMath::Sin(extenderSlope) ;
-
- // const Double_t kMcmExtenderEndPointX = deltaZOrigin - 48.2 * fgkmm ;
- // const Double_t kMcmExtenderXtru3L = 1.5 * fgkmm ;
-
- // //===== end constants =====
-
-
- const Double_t kPbExtenderInnerLength = 10. * fgkmm ;
- const Double_t kPbExtenderOuterLength = 15. * fgkmm ;
- const Double_t kMcmExtenderInnerLength = 10. * fgkmm ;
- const Double_t kMcmExtenderOuterLength = 15. * fgkmm ;
-
- Double_t pbExtenderParams[6] = {kPbExtenderInnerLength, //0
- kPbextenderThickness, //1
- kPbExtenderSlopeAngle, //2
- kPbExtenderHeight, //3
- kPbExtenderOuterLength, //4
- kPbExtenderWidthY}; //5
-
- Double_t mcmExtenderParams[6] = {kMcmExtenderInnerLength, //0
- kMcmExtenderThickness, //1
- kMcmExtenderSlopeAngle, //2
- kMcmExtenderHeight, //3
- kMcmExtenderOuterLength, //4
- kMcmExtenderWidthY}; //5
-
- TArrayD sizes(3);
- TGeoVolume* pbExtender = CreateExtender(pbExtenderParams, medPBExtender, sizes) ;
- printf("CREATED AN EXTENDER : THICKNESS = %5.5f cm\tLENGTH=%5.5f cm\tWIDTH=%5.5f cm\n",sizes[0],sizes[1],sizes[2]);
- TGeoVolume* mcmExtender = CreateExtender(mcmExtenderParams, medMCMExtender, sizes) ;
- printf("CREATED AN EXTENDER : THICKNESS = %5.5f cm\tLENGTH=%5.5f cm\tWIDTH=%5.5f cm\n",sizes[0],sizes[1],sizes[2]);
-
-
-
- // Double_t pixelBusValues[5] = {pixelBusWidthX, //0
- // pixelBusThickness, //1
- // pixelBusContactPhi, //2
- // pixelBusRaiseLength, //3
- // pixelBusWidthY} ; //4
-
- // Double_t pbExtenderValues[8] = {pixelBusRaiseLength, //0
- // pixelBusContactPhi, //1
- // pbExtenderXtru3L, //2
- // pixelBusThickness, //3
- // extenderSlope, //4
- // pbExtenderXtru4L, //5
- // pbExtenderEndPointX, //6
- // kPbExtenderWidthY} ; //7
-
- // Double_t mcmExtenderValues[6] = {mcmExtenderXtru3L, //0
- // mcmExtenderThickness, //1
- // extenderSlope, //2
- // deltaMcmMcmExtender, //3
- // mcmExtenderEndPointX, //4
- // mcmExtenderWidthY}; //5
-
- // TGeoVolumeAssembly *pixelBus = new TGeoVolumeAssembly("PIXEL BUS");
- // CreatePixelBus(pixelBus,pixelBusValues,medPixelBus) ;
- // TGeoVolumeAssembly *pbExtender = new TGeoVolumeAssembly("PIXEL BUS EXTENDER");
- // CreatePixelBusExtender(pbExtender,pbExtenderValues,medPBExtender) ;
- // TGeoVolumeAssembly *mcmExtender = new TGeoVolumeAssembly("MCM EXTENDER");
- // CreateMCMExtender(mcmExtender,mcmExtenderValues,medMCMExtender) ;
-
- // //-------------- DEFINITION OF GEOMETRICAL TRANSFORMATIONS -------------------
- // TGeoRotation * commonRot = new TGeoRotation("commonRot",0,90,0);
- // commonRot->MultiplyBy(new TGeoRotation("rot",-90,0,0)) ;
- // TGeoTranslation * pixelBusTrans = new TGeoTranslation(pixelBusThickness/2. - deltaXOrigin + 0.52*fgkmm ,
- // -pixelBusWidthY/2. + deltaYOrigin ,
- // -groundingWidthX/2. + deltaZOrigin) ;
- // TGeoRotation * pixelBusRot = new TGeoRotation(*commonRot);
- // TGeoTranslation * pbExtenderTrans = new TGeoTranslation(*pixelBusTrans) ;
- // TGeoRotation * pbExtenderRot = new TGeoRotation(*pixelBusRot) ;
- // pbExtenderTrans->SetDz(*(pbExtenderTrans->GetTranslation()+2) - pixelBusWidthX/2. - 2*pixelBusThickness*TMath::Sin(pixelBusContactPhi)) ;
- // if (!zpos) {
- // pbExtenderTrans->SetDy(*(pbExtenderTrans->GetTranslation()+1) - (pixelBusWidthY - kPbExtenderWidthY)/2.);
- // }
- // else {
- // pbExtenderTrans->SetDy(*(pbExtenderTrans->GetTranslation()+1) + (pixelBusWidthY - kPbExtenderWidthY)/2.);
- // }
- // pbExtenderTrans->SetDx(*(pbExtenderTrans->GetTranslation()) + pixelBusThickness/2 + 2*pixelBusThickness*TMath::Sin(pixelBusContactPhi)*TMath::Tan(pixelBusContactPhi)) ;
- // TGeoTranslation * mcmExtenderTrans = new TGeoTranslation(0.12*fgkmm + mcmThickness - deltaXOrigin,
- // pbExtenderTrans->GetTranslation()[1],
- // -4.82);
- // TGeoRotation * mcmExtenderRot = new TGeoRotation(*pbExtenderRot);
-
- // // add pt1000 components
- // Double_t pt1000Z = fgkmm * 64400. * 1E-4;
- // //Double_t pt1000X[10] = {319700., 459700., 599700., 739700., 879700., 1029700., 1169700., 1309700., 1449700., 1589700.};
- // Double_t pt1000X[10] = {66160., 206200., 346200., 486200., 626200., 776200., 916200., 1056200., 1196200., 1336200.};
- // Double_t pt1000size[3] = {fgkmm*1.5, fgkmm*0.6, fgkmm*3.1};
- // Int_t i;
- // for (i = 0; i < 10; i++) {
- // pt1000X[i] *= fgkmm * 1E-4;
- // }
- // TGeoVolume *pt1000 = mgr->MakeBox("PT1000", 0, 0.5*pt1000size[0], 0.5*pt1000size[1], 0.5*pt1000size[2]);
- // pt1000->SetLineColor(kGray);
- // Double_t refThickness = - pixelBusThickness ;
- // for (i = 0; i < 10; i++) {
- // TGeoTranslation *tr = new TGeoTranslation(pt1000X[i]-0.5*pixelBusWidthX, 0.002+0.5*(-3.*refThickness+pt1000size[3]), pt1000Z -0.5*pixelBusWidthY);
- // pixelBus->AddNode(pt1000, i, tr);
- // }
-
- //CREATE FINAL VOLUME ASSEMBLY AND ROTATE IT
- TGeoVolumeAssembly *assembly = new TGeoVolumeAssembly("EXTENDERS");
- // assembly->AddNode((TGeoVolume*)pixelBus ,0, new TGeoCombiTrans(*pixelBusTrans,*pixelBusRot));
- // assembly->AddNode((TGeoVolume*)pbExtender ,0, new TGeoCombiTrans(*pbExtenderTrans,*pbExtenderRot));
- // assembly->AddNode((TGeoVolume*)mcmExtender ,0, new TGeoCombiTrans(*mcmExtenderTrans,*mcmExtenderRot));
- // assembly->AddNode(mcmExtender,0,new TGeoIdentity());
- assembly->AddNode(pbExtender,0);
- assembly->AddNode(mcmExtender,0);
- // assembly->SetTransparency(50);
-
- return assembly ;
+ //
+ // Implementation of an half-stave, which depends on the side where
+ // we are on the stave. The convention for "left" and "right" is the
+ // same as for the MCM. The return value is a TGeoAssembly which is
+ // structured in such a way that the origin of its local reference
+ // frame coincides with the origin of the whole stave.
+ // The TArrayD passed by reference will contain details of the shape:
+ // - sizes[0] = thickness
+ // - sizes[1] = length
+ // - sizes[2] = width
+ // - sizes[3] = common 'x' position for eventual clips
+ // - sizes[4] = common 'y' position for eventual clips
+ // - sizes[5] = 'z' position of first clip
+ // - sizes[6] = 'z' position of second clip
+ //
+
+ // ** CHECK **
+
+ // idxCentral and idxSide must be different
+ if (idxCentral == idxSide) {
+ AliInfo("Ladders must be inserted in half-stave with "
+ "different indexes.");
+ idxSide = idxCentral + 1;
+ AliInfo(Form("Central ladder will be inserted with index %d",
+ idxCentral));
+ AliInfo(Form("Side ladder will be inserted with index %d",idxSide));
+ } // end if
+
+ // define the separations along Z direction between the objects
+ Double_t sepLadderLadder = fgkmm * 0.2; // sep. btw the 2 ladders
+ Double_t sepLadderCenter = fgkmm * 0.4; // sep. btw the "central" ladder
+ // and the Z=0 plane in stave ref.
+ Double_t sepLadderMCM = fgkmm * 0.3; // sep. btw the "external" ladder
+ // and MCM
+ Double_t sepBusCenter = fgkmm * 0.3; // sep. btw the bus central edge
+ // and the Z=0 plane in stave ref.
+
+ // ** VOLUMES **
+
+ // grounding foil
+ TArrayD grndSize(3);
+ // This one line repalces the 3 bellow, BNS.
+ TGeoVolume *grndVol = CreateGroundingFoil(isRight, grndSize, mgr);
+ Double_t &grndThickness = grndSize[0];
+ Double_t &grndLength = grndSize[1];
+
+ // ladder
+ TArrayD ladderSize(3);
+ TGeoVolume *ladder = CreateLadder(layer, ladderSize, mgr);
+ Double_t ladderThickness = ladderSize[0];
+ Double_t ladderLength = ladderSize[1];
+ Double_t ladderWidth = ladderSize[2];
+
+ // MCM
+ TArrayD mcmSize(3);
+ TGeoVolumeAssembly *mcm = CreateMCM(!isRight,mcmSize,mgr);
+ Double_t mcmThickness = mcmSize[0];
+ Double_t mcmLength = mcmSize[1];
+ Double_t mcmWidth = mcmSize[2];
+
+ // bus
+ TArrayD busSize(6);
+ TGeoVolumeAssembly *bus = CreatePixelBus(isRight, layer, busSize, mgr);
+ Double_t busThickness = busSize[0];
+ Double_t busLength = busSize[1];
+ Double_t busWidth = busSize[2];
+
+ // glue between ladders and pixel bus
+ TGeoMedium *medLadGlue = GetMedium("EPOXY$", mgr);
+ Double_t ladGlueThickness = fgkmm * 0.1175 - fgkGapLadder;
+ TGeoVolume *ladderGlue = mgr->MakeBox("ITSSPDladderGlue",medLadGlue,
+ 0.5*ladGlueThickness, 0.5*busWidth, 0.5*busLength);
+ ladderGlue->SetLineColor(kYellow + 5);
+
+ // create references for the whole object, as usual
+ sizes.Set(7);
+ Double_t &fullThickness = sizes[0];
+ Double_t &fullLength = sizes[1];
+ Double_t &fullWidth = sizes[2];
+
+ // compute the full size of the container
+ fullLength = sepLadderCenter+2.0*ladderLength+sepLadderMCM+
+ sepLadderLadder+mcmLength;
+ fullWidth = ladderWidth;
+ fullThickness = grndThickness + fgkGapLadder + mcmThickness + busThickness;
+ //cout << "HSTAVE FULL THICKNESS = " << fullThickness << endl;
+
+ // ** MOVEMENTS **
+
+ // grounding foil (shifted only along thickness)
+ Double_t xGrnd = -0.5*fullThickness + 0.5*grndThickness;
+ Double_t zGrnd = -0.5*grndLength;
+ if (!isRight) zGrnd = -zGrnd;
+ TGeoTranslation *grndTrans = new TGeoTranslation(xGrnd, 0.0, zGrnd);
+
+ // ladders (translations along thickness and length)
+ // layers must be sorted going from the one at largest Z to the
+ // one at smallest Z:
+ // -|Zmax| ------> |Zmax|
+ // 3 2 1 0
+ // then, for layer 1 ladders they must be placed exactly this way,
+ // and in layer 2 at the opposite. In order to remember the placements,
+ // we define as "inner" and "outer" ladder respectively the one close
+ // to barrel center, and the one closer to MCM, respectively.
+ Double_t xLad, zLadIn, zLadOut;
+ xLad = xGrnd + 0.5*(grndThickness + ladderThickness) +
+ 0.01175 - fgkGapLadder;
+ zLadIn = -sepLadderCenter - 0.5*ladderLength;
+ zLadOut = zLadIn - sepLadderLadder - ladderLength;
+ if (!isRight) {
+ zLadIn = -zLadIn;
+ zLadOut = -zLadOut;
+ } // end if !isRight
+ TGeoRotation *rotLad = new TGeoRotation(*gGeoIdentity);
+ rotLad->RotateZ(90.0);
+ rotLad->RotateY(180.0);
+ Double_t sensWidth = fgkmm * 12.800;
+ Double_t chipWidth = fgkmm * 15.950;
+ Double_t guardRingWidth = fgkmm * 0.560;
+ Double_t ladderShift = 0.5 * (chipWidth - sensWidth - 2.0*guardRingWidth);
+ TGeoCombiTrans *trLadIn = new TGeoCombiTrans(xLad,ladderShift,zLadIn,
+ rotLad);
+ TGeoCombiTrans *trLadOut = new TGeoCombiTrans(xLad,ladderShift,zLadOut,
+ rotLad);
+
+ // MCM (length and thickness direction, placing at same level as the
+ // ladder, which implies to recompute the position of center, because
+ // ladder and MCM have NOT the same thickness) the two copies of the
+ // MCM are placed at the same distance from the center, on both sides
+ Double_t xMCM = xGrnd + 0.5*grndThickness + 0.5*mcmThickness +
+ 0.01175 - fgkGapLadder;
+ Double_t yMCM = 0.5*(fullWidth - mcmWidth);
+ Double_t zMCM = zLadOut - 0.5*ladderLength - 0.5*mcmLength - sepLadderMCM;
+ if (!isRight) zMCM = zLadOut + 0.5*ladderLength + 0.5*mcmLength +
+ sepLadderMCM;
+
+ // create the correction rotations
+ TGeoRotation *rotMCM = new TGeoRotation(*gGeoIdentity);
+ rotMCM->RotateY(90.0);
+ TGeoCombiTrans *trMCM = new TGeoCombiTrans(xMCM, yMCM, zMCM, rotMCM);
+
+ // glue between ladders and pixel bus
+ Double_t xLadGlue = xLad + 0.5*ladderThickness + 0.01175 -
+ fgkGapLadder + 0.5*ladGlueThickness;
+
+ // bus (length and thickness direction)
+ Double_t xBus = xLadGlue + 0.5*ladGlueThickness + 0.5*busThickness;
+ Double_t yBus = 0.5*(fullWidth - busWidth) + 0.075; // Hardcode fix of a small overlap
+ Double_t zBus = -0.5*busLength - sepBusCenter;
+ if (!isRight) zBus = -zBus;
+ TGeoTranslation *trBus = new TGeoTranslation(xBus, yBus, zBus);
+
+ TGeoTranslation *trLadGlue = new TGeoTranslation(xLadGlue, 0.0, zBus);
+
+ // create the container
+ TGeoVolumeAssembly *container = 0;
+ if (idxCentral+idxSide==5) {
+ container = new TGeoVolumeAssembly("ITSSPDhalf-Stave1");
+ } else {
+ container = new TGeoVolumeAssembly("ITSSPDhalf-Stave0");
+ } // end if
+
+ // add to container all objects
+ container->AddNode(grndVol, 1, grndTrans);
+ // ladders are inserted in different order to respect numbering scheme
+ // which is inverted when going from outer to inner layer
+ container->AddNode(ladder, idxCentral+1, trLadIn);
+ container->AddNode(ladder, idxSide+1, trLadOut);
+ container->AddNode(ladderGlue, 1, trLadGlue);
+ container->AddNode(mcm, 1, trMCM);
+ container->AddNode(bus, 1, trBus);
+
+ // since the clips are placed in correspondence of two pt1000s,
+ // their position is computed here, but they are not added by default
+ // it will be the StavesInSector method which will decide to add them
+ // anyway, to recovery some size informations on the clip, it must be
+ // created
+ TArrayD clipSize;
+ // TGeoVolume *clipDummy = CreateClip(clipSize, kTRUE, mgr);
+ CreateClip(clipSize, kTRUE, mgr);
+ // define clip movements (width direction)
+ sizes[3] = xBus + 0.5*busThickness;
+ sizes[4] = 0.5 * (fullWidth - busWidth) - clipSize[6] - fgkmm*0.48;
+ sizes[5] = zBus + busSize[4];
+ sizes[6] = zBus + busSize[5];
+
+ return container;
}
-//
-//__________________________________________________________________________________________
-TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateHalfStave
-(Bool_t isRight,
- Int_t layer, Int_t idxCentral, Int_t idxSide,
- TArrayD &sizes, Bool_t addClips, TGeoManager *mgr)
+//______________________________________________________________________
+TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateStave(Int_t layer,
+ TArrayD &sizes, TGeoManager *mgr)
{
- //
- // Implementation of an half-stave, which depends on the side where we are on the stave.
- // The convention for "left" and "right" is the same as for the MCM.
- // The return value is a TGeoAssembly which is structured in such a way that the origin
- // of its local reference frame coincides with the origin of the whole stave.
- //
-
- // ** CHECK **
-
- // idxCentral and idxSide must be different
- if (idxCentral == idxSide) {
- AliInfo("Ladders must be inserted in half-stave with different indexes.");
- idxSide = idxCentral + 1;
- AliInfo(Form("Central ladder will be inserted with index %d", idxCentral));
- AliInfo(Form("Side ladder will be inserted with index %d", idxSide));
- }
-
- // define the separations along Z direction between the objects
- Double_t sepLadderLadder = fgkmm * 0.2; // sep. btw the 2 ladders
- Double_t sepLadderCenter = fgkmm * 0.4; // sep. btw the "central" ladder and the Z=0 plane in stave ref.
- Double_t sepLadderMCM = fgkmm * 0.3; // sep. btw the "external" ladder and MCM
- Double_t sepBusCenter = fgkmm * 0.3; // sep. btw the bus central edge and the Z=0 plane in stave ref.
-
- // ** VOLUMES **
-
- // grounding foil
- TArrayD grndSize(3);
- // This one line repalces the 3 bellow, BNS.
- TGeoVolume *grndVol = CreateGroundingFoil(isRight,grndSize,mgr);
- //TGeoVolume *grndVol = 0;
- //if (isRight) grndVol = CreateGroundingFoil(kTRUE, grndSize, mgr);
- //else grndVol = CreateGroundingFoil(kFALSE, grndSize, mgr);
- Double_t &grndThickness = grndSize[0];
- Double_t &grndLength = grndSize[1];
-
- // ladder
- TArrayD ladderSize(3);
- TGeoVolume *ladder = CreateLadder(layer, ladderSize, mgr);
- Double_t ladderThickness = ladderSize[0];
- Double_t ladderLength = ladderSize[1];
- Double_t ladderWidth = ladderSize[2];
-
- // glue between ladders and pixel bus
- TGeoMedium *medLadGlue = GetMedium("EPOXY$", mgr); // ??? LadderBusGlue
- Double_t ladGlueThickness = fgkmm * 0.12 - fAlignmentGap;
- TGeoVolume *ladderGlue = mgr->MakeBox("LADDER_GLUE", medLadGlue, 0.5*ladGlueThickness, 0.5*ladderWidth, 0.5*ladderLength);
- ladderGlue->SetLineColor(kRed);
-
- // MCM
- TArrayD mcmSize(3);
- TGeoVolumeAssembly *mcm = CreateMCM(!isRight,mcmSize,mgr);
- //TGeoVolumeAssembly *mcm = 0;
- //if (isRight) mcm = CreateMCM(kFALSE, mcmSize, mgr);
- //else mcm = CreateMCM(kTRUE, mcmSize, mgr);
- Double_t mcmThickness = mcmSize[0];
- Double_t mcmLength = mcmSize[1];
- Double_t mcmWidth = mcmSize[2];
-
- // bus
- TArrayD busSize(6);
- TGeoVolumeAssembly *bus = CreatePixelBus(isRight, busSize, mgr);
- //TGeoVolume *bus = 0;
- //if (isRight) bus = CreatePixelBus(kTRUE, busSize, mgr);
- //else bus = CreatePixelBus(kFALSE, busSize, mgr);
- Double_t busThickness = busSize[0];
- Double_t busLength = busSize[1];
- Double_t busWidth = busSize[2];
-
- // create references for the whole object, as usual
- if (sizes.GetSize() != 3) sizes.Set(3);
- Double_t &fullThickness = sizes[0];
- Double_t &fullLength = sizes[1];
- Double_t &fullWidth = sizes[2];
-
- // compute the full size of the container
- fullLength = sepLadderCenter + 2.0*ladderLength + sepLadderMCM + sepLadderLadder + mcmLength;
- fullWidth = ladderWidth;
- fullThickness = grndThickness + fAlignmentGap + mcmThickness + busThickness;
-
- // ** MOVEMENTS **
-
- // grounding foil (shifted only along thickness)
- Double_t xGrnd = -0.5*fullThickness + 0.5*grndThickness;
- Double_t zGrnd = -0.5*grndLength;
- if (!isRight) zGrnd = -zGrnd;
- TGeoTranslation *grndTrans = new TGeoTranslation(xGrnd, 0.0, zGrnd);
-
- // ladders (translations along thickness and length)
- // layers must be sorted going from the one at largest Z to the one at smallest Z:
- // -|Zmax| ------> |Zmax|
- // 3 2 1 0
- // then, for layer 1 ladders they must be placed exactly this way, and in layer 2 at the opposite.
- // In order to remember the placements, we define as "inner" and "outer" ladder respectively
- // the one close to barrel center, and the one closer to MCM, respectively.
- Double_t xLad, zLadIn, zLadOut;
- xLad = xGrnd + 0.5*(grndThickness + ladderThickness) + 0.01175 - fAlignmentGap;
- zLadIn = -sepLadderCenter - 0.5*ladderLength;
- zLadOut = zLadIn - sepLadderLadder - ladderLength;
- if (!isRight) {
- zLadIn = -zLadIn;
- zLadOut = -zLadOut;
- }
- TGeoRotation *rotLad = new TGeoRotation(*gGeoIdentity);
- rotLad->RotateZ(90.0);
- rotLad->RotateY(180.0);
- Double_t sensWidth = fgkmm * 12.800;
- Double_t chipWidth = fgkmm * 15.950;
- Double_t guardRingWidth = fgkmm * 0.560;
- Double_t ladderShift = 0.5 * (chipWidth - sensWidth - 2.0*guardRingWidth);
- TGeoCombiTrans *trLadIn = new TGeoCombiTrans(xLad, ladderShift, zLadIn, rotLad);
- TGeoCombiTrans *trLadOut = new TGeoCombiTrans(xLad, ladderShift, zLadOut, rotLad);
-
- // glue between ladders and pixel bus
- Double_t xLadGlue = xLad + 0.5*ladderThickness + fAlignmentGap - 0.5*ladGlueThickness;
- TGeoTranslation *trLadGlueIn = new TGeoTranslation(xLadGlue, 0.0, zLadIn);
- TGeoTranslation *trLadGlueOut = new TGeoTranslation(xLadGlue, 0.0, zLadOut);
-
- // MCM (length and thickness direction, placing at same level as the ladder, which implies to
- // recompute the position of center, because ladder and MCM have NOT the same thickness)
- // the two copies of the MCM are placed at the same distance from the center, on both sides
- Double_t xMCM = xGrnd + 0.5*grndThickness + 0.5*mcmThickness + fAlignmentGap;
- Double_t yMCM = 0.5*(fullWidth - mcmWidth);
- Double_t zMCM = zLadOut - 0.5*ladderLength - 0.5*mcmLength - sepLadderMCM;
- if (!isRight) zMCM = zLadOut + 0.5*ladderLength + 0.5*mcmLength + sepLadderMCM;
-
- // create the correction rotations
- TGeoRotation *rotMCM = new TGeoRotation(*gGeoIdentity);
- rotMCM->RotateY(90.0);
- TGeoCombiTrans *trMCM = new TGeoCombiTrans(xMCM, yMCM, zMCM, rotMCM);
-
- // bus (length and thickness direction)
- Double_t xBus = xLad + 0.5*ladderThickness + 0.5*busThickness + fAlignmentGap + ladGlueThickness;
- Double_t yBus = 0.5*(fullWidth - busWidth);
- Double_t zBus = -0.5*busLength - sepBusCenter;
- if (!isRight) zBus = -zBus;
- TGeoTranslation *trBus = new TGeoTranslation(xBus, yBus, zBus);
-
- // create the container
- TGeoVolumeAssembly *container = 0;
- if (idxCentral+idxSide==5) {
- container = new TGeoVolumeAssembly("HALF-STAVE1");
- } else {
- container = new TGeoVolumeAssembly("HALF-STAVE0");
- }
+ //
+ // This method uses all other ones which create pieces of the stave
+ // and assemblies everything together, in order to return the whole
+ // stave implementation, which is returned as a TGeoVolumeAssembly,
+ // due to the presence of some parts which could generate fake overlaps
+ // when put on the sector.
+ // This assembly contains, going from bottom to top in the thickness
+ // direction:
+ // - the complete grounding foil, defined by the "CreateGroundingFoil"
+ // method which already joins some glue and real groudning foil
+ // layers for the whole stave (left + right);
+ // - 4 ladders, which are sorted according to the ALICE numbering
+ // scheme, which depends on the layer we are building this stave for;
+ // - 2 MCMs (a left and a right one);
+ // - 2 pixel buses (a left and a right one);
+ // ---
+ // Arguments:
+ // - the layer number, which determines the displacement and naming
+ // of sensitive volumes
+ // - a TArrayD passed by reference which will contain the size
+ // of virtual box containing the stave
+ // - the TGeoManager
+ //
- // add to container all objects
- container->AddNode(grndVol, 1, grndTrans);
- // ladders are inserted in different order to respect numbering scheme
- // which is inverted when going from outer to inner layer
- container->AddNode(ladder, idxCentral, trLadIn);
- container->AddNode(ladder, idxSide, trLadOut);
- container->AddNode(ladderGlue, 0, trLadGlueIn);
- container->AddNode(ladderGlue, 1, trLadGlueOut);
- container->AddNode(mcm, 0, trMCM);
- container->AddNode(bus, 0, trBus);
-
- if (addClips) {
-
- // ad clips if requested
- // create clip volume
- TArrayD clipSize(3);
- TGeoVolume *clip = CreateClip(clipSize, mgr);
-
- // define clip movements (width direction)
- TGeoRotation *rotClip = new TGeoRotation(*gGeoIdentity);
- rotClip->RotateZ(-90.0);
- rotClip->RotateX(180.0);
- Double_t x = xBus + 0.5*busThickness;//clipSize[3] - clipSize[2];
- Double_t y = 0.5 * (fullWidth - busWidth) - clipSize[6] - fgkmm*0.48;
- Double_t z1 = zBus + busSize[4];
- Double_t z2 = zBus + busSize[5];
- cout << z1 << ' ' << z2 << endl;
- TGeoCombiTrans *trClip1 = new TGeoCombiTrans(x, y, z1, rotClip);
- TGeoCombiTrans *trClip2 = new TGeoCombiTrans(x, y, z2, rotClip);
- container->AddNode(clip, 0, trClip1);
- container->AddNode(clip, 1, trClip2);
- }
-
-
- return container;
-}
-//
-//__________________________________________________________________________________________
-TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateStave
-(Int_t layer,
- TArrayD &sizes, Bool_t addClips, TGeoManager *mgr) {
- // This method uses all other ones which create pieces of the stave
- // and assemblies everything together, in order to return the whole
- // stave implementation, which is returned as a TGeoVolumeAssembly,
- // due to the presence of some parts which could generate fake overlaps
- // when put on the sector.
- // This assembly contains, going from bottom to top in the thickness direction:
- // - the complete grounding foil, defined by the "CreateGroundingFoil" method which
- // already joins some glue and real groudning foil layers for the whole stave (left + right);
- // - 4 ladders, which are sorted according to the ALICE numbering scheme, which depends
- // on the layer we are building this stave for;
- // - 2 MCMs (a left and a right one);
- // - 2 pixel buses (a left and a right one);
- // ---
- // Arguments:
- // - the layer number, which determines the displacement and naming of sensitive volumes
- // - a TArrayD passed by reference which will contain the size of virtual box containing the stave
- // - the TGeoManager
- //
-
- // create the container
- TGeoVolumeAssembly *container = new TGeoVolumeAssembly(Form("LAY%d_STAVE", layer));
-
- // define the indexes of the ladders in order to have the correct order
- // keeping in mind that the staves will be inserted as they are on layer 2, while
- // they are rotated around their local Y axis when inserted on layer 1, so in this case
- // they must be put in the "wrong" order to turn out to be right at the end
- // The convention is:
- // -|Zmax| ------> |Zmax|
- // 3 2 1 0
- // with respect to the "native" stave reference frame, "left" is in the positive Z
- // this leads the definition of these indexes:
-
- Int_t idxCentralL, idxSideL, idxCentralR, idxSideR;
- if (layer == 1) {
- idxSideL = 3;
- idxCentralL = 2;
- idxCentralR = 1;
- idxSideR = 0;
- }
- else {
- idxSideL = 0;
- idxCentralL = 1;
- idxCentralR = 2;
- idxSideR = 3;
- }
-
- // create the two half-staves
- TArrayD sizeL(3), sizeR(3);
- TGeoVolumeAssembly *hstaveL = CreateHalfStave(kFALSE, layer, idxCentralL, idxSideL, sizeL, addClips, mgr);
- TGeoVolumeAssembly *hstaveR = CreateHalfStave(kTRUE, layer, idxCentralR, idxSideR, sizeR, addClips, mgr);
-
- // copy the size to the stave's one
- sizes[0] = sizeL[0];
- sizes[1] = sizeR[1] + sizeL[1];
- sizes[2] = sizeL[2];
-
- // add to container all objects
- container->AddNode(hstaveL, 1);
- container->AddNode(hstaveR, 1);
-
- return container;
+ // create the container
+ TGeoVolumeAssembly *container = new TGeoVolumeAssembly(Form(
+ "ITSSPDlay%d-Stave",layer));
+ // define the indexes of the ladders in order to have the correct order
+ // keeping in mind that the staves will be inserted as they are on layer
+ // 2, while they are rotated around their local Y axis when inserted
+ // on layer 1, so in this case they must be put in the "wrong" order
+ // to turn out to be right at the end. The convention is:
+ // -|Zmax| ------> |Zmax|
+ // 3 2 1 0
+ // with respect to the "native" stave reference frame, "left" is in
+ // the positive Z this leads the definition of these indexes:
+ Int_t idxCentralL, idxSideL, idxCentralR, idxSideR;
+
+ if (layer == 1) {
+ idxSideL = 3;
+ idxCentralL = 2;
+ idxCentralR = 1;
+ idxSideR = 0;
+ } else {
+ idxSideL = 0;
+ idxCentralL = 1;
+ idxCentralR = 2;
+ idxSideR = 3;
+ } // end if layer ==1
+
+ // create the two half-staves
+ TArrayD sizeL, sizeR;
+ TGeoVolumeAssembly *hstaveL = CreateHalfStave(kFALSE, layer, idxCentralL,
+ idxSideL, sizeL,mgr);
+ TGeoVolumeAssembly *hstaveR = CreateHalfStave(kTRUE, layer, idxCentralR,
+ idxSideR, sizeR, mgr);
+ // copy the size to the stave's one
+ sizes.Set(9);
+ sizes[0] = sizeL[0];
+ sizes[1] = sizeR[1] + sizeL[1];
+ sizes[2] = sizeL[2];
+ sizes[3] = sizeL[3];
+ sizes[4] = sizeL[4];
+ sizes[5] = sizeL[5];
+ sizes[6] = sizeL[6];
+ sizes[7] = sizeR[5];
+ sizes[8] = sizeR[6];
+
+ // add to container all objects
+ container->AddNode(hstaveL, 1);
+ container->AddNode(hstaveR, 1);
+
+ return container;
}
-//
-//__________________________________________________________________________________________
+//______________________________________________________________________
void AliITSv11GeometrySPD::SetAddStave(Bool_t *mask)
{
- //
- // Define a mask which states qhich staves must be placed.
- // It is a string which must contain '0' or '1' depending if
- // a stave must be placed or not.
- // Each place is referred to one of the staves, so the first
- // six characters of the string will be checked.
- //
-
- Int_t i;
- for (i = 0; i < 6; i++) fAddStave[i] = mask[i];
+ //
+ // Define a mask which states qhich staves must be placed.
+ // It is a string which must contain '0' or '1' depending if
+ // a stave must be placed or not.
+ // Each place is referred to one of the staves, so the first
+ // six characters of the string will be checked.
+ //
+ Int_t i;
+
+ for (i = 0; i < 6; i++) fAddStave[i] = mask[i];
}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::StavesInSector(TGeoVolume *moth, TGeoManager *mgr) {
- //
- // Unification of essentially two methods:
- // - the one which creates the sector structure
- // - the one which returns the complete stave
- // ---
- // For compatibility, this method requires the same arguments
- // asked by "CarbonFiberSector" method, which is recalled here.
- // Like this cited method, this one does not return any value,
- // but it inserts in the mother volume (argument 'moth') all the stuff
- // which composes the complete SPD sector.
- // ---
- // In the following, the stave numbering order used for arrays is the same as
- // defined in the GetSectorMountingPoints():
- // /5
- // /\/4
- // 1\ \/3
- // 0|___\/2
- // ---
- // Arguments: see description of "CarbonFiberSector" method.
- //
-
- Double_t shift[6]; // shift from the innermost position in the sector placement plane
- // (where the stave edge is in the point where the rounded corner begins)
-
- shift[0] = fgkmm * -0.691;
- shift[1] = fgkmm * 1.300;
- shift[2] = fgkmm * 1.816;
- shift[3] = fgkmm * -0.610;
- shift[4] = fgkmm * -0.610;
- shift[5] = fgkmm * -0.610;
-
- // create stave volumes (different for layer 1 and 2)
- TArrayD staveSizes1(3), staveSizes2(3);
- Double_t &staveHeight = staveSizes1[2], &staveThickness = staveSizes1[0];
- TGeoVolume *stave1 = CreateStave(1, staveSizes1, kFALSE, mgr);
- //TGeoVolume *stave2clips = CreateStave(2, staveSizes2, kTRUE, mgr);
- TGeoVolume *stave2noclips = CreateStave(2, staveSizes2, kFALSE, mgr);
-
- Double_t xL, yL; // leftmost edge of mounting point (XY projection)
- Double_t xR, yR; // rightmost edge of mounting point (XY projection)
- Double_t xM, yM; // middle point of the segment L-R
- Double_t dx, dy; // (xL - xR) and (yL - yR)
- Double_t widthLR; // width of the segment L-R
- Double_t angle; // stave rotation angle in degrees
- Double_t diffWidth; // difference between mounting plane width and stave width (smaller)
- Double_t xPos, yPos; // final translation of the stave
- Double_t parMovement; // translation in the LR plane direction
-
- // loop on staves
- for (Int_t i = 0; i < 6; i++) {
- // in debug mode, if this stave is not required, it is skipped
- if (!fAddStave[i]) continue;
- // retrieve reference points
- GetSectorMountingPoints(i, xL, yL, xR, yR);
- xM = 0.5 * (xL + xR);
- yM = 0.5 * (yL + yR);
- dx = xL - xR;
- dy = yL - yR;
- angle = TMath::ATan2(dy, dx);
- widthLR = TMath::Sqrt(dx*dx + dy*dy);
- diffWidth = 0.5*(widthLR - staveHeight);
- // first, a movement along this plane must be done
- // by an amount equal to the width difference
- // and then the fixed shift must also be added
- parMovement = diffWidth + shift[i];
- // due to stave thickness, another movement must be done
- // in the direction normal to the mounting plane
- // which is computed using an internal method, in a reference frame where the LR segment
- // has its middle point in the origin and axes parallel to the master reference frame
- if (i == 0) {
- ParallelPosition(-0.5*staveThickness, -parMovement, angle, xPos, yPos);
- }
- if (i == 1) {
- ParallelPosition( 0.5*staveThickness, -parMovement, angle, xPos, yPos);
- }
- else {
- ParallelPosition( 0.5*staveThickness, parMovement, angle, xPos, yPos);
- }
- // then we go into the true reference frame
- xPos += xM;
- yPos += yM;
- // using the parameters found here, compute the
- // translation and rotation of this stave:
- TGeoRotation *rot = new TGeoRotation(*gGeoIdentity);
- if (i == 0 || i == 1) rot->RotateX(180.0);
- rot->RotateZ(90.0 + angle * TMath::RadToDeg());
- TGeoCombiTrans *trans = new TGeoCombiTrans(xPos, yPos, 0.0, rot);
- if (i == 0 || i == 1) {
- moth->AddNode(stave1, i, trans);
- }
- else {
- if (i == 2) {
- moth->AddNode(stave2noclips, i - 2, trans);
- }
- else {
- moth->AddNode(stave2noclips, i - 2, trans);
- }
- }
- }
+//______________________________________________________________________
+void AliITSv11GeometrySPD::StavesInSector(TGeoVolume *moth, TGeoManager *mgr)
+{
+ //
+ // Unification of essentially two methods:
+ // - the one which creates the sector structure
+ // - the one which returns the complete stave
+ // ---
+ // For compatibility, this method requires the same arguments
+ // asked by "CarbonFiberSector" method, which is recalled here.
+ // Like this cited method, this one does not return any value,
+ // but it inserts in the mother volume (argument 'moth') all the stuff
+ // which composes the complete SPD sector.
+ // ---
+ // In the following, the stave numbering order used for arrays is the
+ // same as defined in the GetSectorMountingPoints():
+ // /5
+ // /\/4
+ // 1\ \/3
+ // 0|___\/2
+ // ---
+ // Arguments: see description of "CarbonFiberSector" method.
+ //
+
+ Double_t shift[6]; // shift from the innermost position in the
+ // sector placement plane (where the stave
+ // edge is in the point where the rounded
+ // corner begins)
+
+ shift[0] = fgkmm * -0.691;
+ shift[1] = fgkmm * 5.041;
+ shift[2] = fgkmm * 1.816;
+ shift[3] = fgkmm * -0.610;
+ shift[4] = fgkmm * -0.610;
+ shift[5] = fgkmm * -0.610;
+
+ // corrections after interaction with Andrea and CAD
+ Double_t corrX[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
+ Double_t corrY[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
+
+ corrX[0] = 0.0046;
+ corrX[1] = -0.0041;
+ corrX[2] = corrX[3] = corrX[4] = corrX[5] = -0.0016;
+
+ corrY[0] = -0.0007;
+ corrY[1] = -0.0009;
+ corrY[2] = corrY[3] = corrY[4] = corrY[5] = -0.0003;
+
+ corrX[0] += 0.00026;
+ corrY[0] += -0.00080;
+
+ corrX[1] += 0.00018;
+ corrY[1] += -0.00086;
+
+ corrX[2] += 0.00020;
+ corrY[2] += -0.00062;
+
+ corrX[3] += 0.00017;
+ corrY[3] += -0.00076;
+
+ corrX[4] += 0.00016;
+ corrY[4] += -0.00096;
+
+ corrX[5] += 0.00018;
+ corrY[5] += -0.00107;
+
+ // create stave volumes (different for layer 1 and 2)
+ TArrayD staveSizes1(9), staveSizes2(9), clipSize(5);
+ Double_t &staveHeight = staveSizes1[2], &staveThickness = staveSizes1[0];
+ TGeoVolume *stave1 = CreateStave(1, staveSizes1, mgr);
+ TGeoVolume *stave2 = CreateStave(2, staveSizes2, mgr);
+ TGeoVolume *clip = CreateClip(clipSize, kFALSE, mgr);
+
+ Double_t xL, yL; // leftmost edge of mounting point (XY projection)
+ Double_t xR, yR; // rightmost edge of mounting point (XY projection)
+ Double_t xM, yM; // middle point of the segment L-R
+ Double_t dx, dy; // (xL - xR) and (yL - yR)
+ Double_t widthLR; // width of the segment L-R
+ Double_t angle; // stave rotation angle in degrees
+ Double_t diffWidth; // difference between mounting plane width and
+ // stave width (smaller)
+ Double_t xPos, yPos; // final translation of the stave
+ Double_t parMovement; // translation in the LR plane direction
+
+ staveThickness += fgkGapHalfStave;
+
+ // loop on staves
+ Int_t i, iclip = 1;
+ for (i = 0; i < 6; i++) {
+ // in debug mode, if this stave is not required, it is skipped
+ if (!fAddStave[i]) continue;
+ // retrieve reference points
+ GetSectorMountingPoints(i, xL, yL, xR, yR);
+ xM = 0.5 * (xL + xR);
+ yM = 0.5 * (yL + yR);
+ dx = xL - xR;
+ dy = yL - yR;
+ angle = TMath::ATan2(dy, dx);
+ widthLR = TMath::Sqrt(dx*dx + dy*dy);
+ diffWidth = 0.5*(widthLR - staveHeight);
+ // first, a movement along this plane must be done
+ // by an amount equal to the width difference
+ // and then the fixed shift must also be added
+ parMovement = diffWidth + shift[i];
+ // due to stave thickness, another movement must be done
+ // in the direction normal to the mounting plane
+ // which is computed using an internal method, in a reference
+ // frame where the LR segment has its middle point in the origin
+ // and axes parallel to the master reference frame
+ if (i == 0) {
+ ParallelPosition(-0.5*staveThickness, -parMovement, angle,
+ xPos, yPos);
+ } // end if i==0
+ if (i == 1) {
+ ParallelPosition( 0.5*staveThickness, -parMovement, angle,
+ xPos, yPos);
+ }else {
+ ParallelPosition( 0.5*staveThickness, parMovement, angle,
+ xPos, yPos);
+ } // end if i==1
+ // then we go into the true reference frame
+ xPos += xM;
+ yPos += yM;
+ xPos += corrX[i];
+ yPos += corrY[i];
+ // using the parameters found here, compute the
+ // translation and rotation of this stave:
+ TGeoRotation *rot = new TGeoRotation(*gGeoIdentity);
+ if (i == 0 || i == 1) rot->RotateX(180.0);
+ rot->RotateZ(90.0 + angle * TMath::RadToDeg());
+ TGeoCombiTrans *trans = new TGeoCombiTrans(xPos, yPos, 0.0, rot);
+ if (i == 0 || i == 1) {
+ moth->AddNode(stave1, i+1, trans);
+ }else {
+ moth->AddNode(stave2, i - 1, trans);
+ if (i != 2) {
+ // except in the case of stave #2,
+ // clips must be added, and this is done directly on the sector
+ Int_t j;
+ //TArrayD clipSize;
+ TGeoRotation *rotClip = new TGeoRotation(*gGeoIdentity);
+ rotClip->RotateZ(-90.0);
+ rotClip->RotateX(180.0);
+ Double_t x = staveSizes2[3] + fgkGapHalfStave;
+ Double_t y = staveSizes2[4];
+ Double_t z[4] = { staveSizes2[5], staveSizes2[6],
+ staveSizes2[7], staveSizes2[8] };
+ for (j = 0; j < 4; j++) {
+ TGeoCombiTrans *trClip = new TGeoCombiTrans(x, y, z[j],
+ rotClip);
+ *trClip = *trans * *trClip;
+ moth->AddNode(clip, iclip++, trClip);
+ } // end for j
+ } // end if i!=2
+ } // end if i==0||i==1 else
+ } // end for i
+
+
+ // Add a box representing the collector for cooling tubes
+ Double_t collWidth = fgkmm * 22.0;
+ Double_t collLength = fgkmm * 50.0;
+ Double_t collThickness = fgkmm * 7.0;
+ Double_t collInSize = fgkmm * 10.5;
+
+ TGeoMedium *medColl = GetMedium("INOX$");
+ TGeoMedium *medCollIn = GetMedium("COPPER$");
+ TGeoVolume *vColl = mgr->MakeBox("ITSSPDSectorTubeColl" , medColl, 0.5*collWidth, 0.5*collThickness, 0.5*collLength);
+ TGeoVolume *vCollIn = mgr->MakeBox("ITSSPDSectorTubeCollIn", medCollIn, 0.5*collInSize, 0.5*collInSize, 0.5*collInSize);
+ vColl->SetLineColor(kGreen+2);
+ vCollIn->SetLineColor(kYellow);
+
+ TGeoTranslation *tr1 = new TGeoTranslation( 0.1, 1.2, 35.0);
+ TGeoTranslation *tr2 = new TGeoTranslation(-0.1, 1.2, -35.0);
+ TGeoTranslation *tr3 = new TGeoTranslation( 0.1, 1.2 - 0.5*(collThickness+collInSize), 35.0 + 0.5*(collLength - collInSize));
+ TGeoTranslation *tr4 = new TGeoTranslation(-0.1, 1.2 - 0.5*(collThickness+collInSize), -35.0 - 0.5*(collLength - collInSize));
+
+ moth->AddNode(vColl, 0, tr1);
+ moth->AddNode(vColl, 1, tr2);
+ moth->AddNode(vCollIn, 0, tr3);
+ moth->AddNode(vCollIn, 1, tr4);
+
}
-//
-//__________________________________________________________________________________________
+//______________________________________________________________________
void AliITSv11GeometrySPD::ParallelPosition(Double_t dist1, Double_t dist2,
- Double_t phi, Double_t &x, Double_t &y) const {
- // Performs the following steps:
- // 1 - finds a straight line parallel to the one passing through the origin and with angle 'phi' with X axis
- // (phi in RADIANS);
- // 2 - finds another line parallel to the previous one, with a distance 'dist1' from it
- // 3 - takes a reference point in the second line in the intersection between the normal to both lines
- // passing through the origin
- // 4 - finds a point whith has distance 'dist2' from this reference, in the second line (point 2)
- // ----
- // According to the signs given to dist1 and dist2, the point is found in different position w.r. to the origin
- //
-
- // compute the point
- Double_t cs = TMath::Cos(phi);
- Double_t sn = TMath::Sin(phi);
-
- x = dist2*cs - dist1*sn;
- y = dist1*cs + dist2*sn;
+ Double_t phi, Double_t &x, Double_t &y) const
+{
+ //
+ // Performs the following steps:
+ // 1 - finds a straight line parallel to the one passing through
+ // the origin and with angle 'phi' with X axis(phi in RADIANS);
+ // 2 - finds another line parallel to the previous one, with a
+ // distance 'dist1' from it
+ // 3 - takes a reference point in the second line in the intersection
+ // between the normal to both lines passing through the origin
+ // 4 - finds a point whith has distance 'dist2' from this reference,
+ // in the second line (point 2)
+ // ----
+ // According to the signs given to dist1 and dist2, the point is
+ // found in different position w.r. to the origin
+ // compute the point
+ //
+ Double_t cs = TMath::Cos(phi);
+ Double_t sn = TMath::Sin(phi);
+
+ x = dist2*cs - dist1*sn;
+ y = dist1*cs + dist2*sn;
}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::CreateFigure0(const Char_t *filepath,
- const Char_t *type,
- TGeoManager *mgr) const {
- // Creates Figure 0 for the documentation of this class. In this
- // specific case, it creates the X,Y cross section of the SPD suport
- // section, center and ends. The output is written to a standard
- // file name to the path specificed.
+//______________________________________________________________________
+Double_t AliITSv11GeometrySPD::GetSPDSectorTranslation(
+ Double_t x0,Double_t y0,Double_t x1,Double_t y1,Double_t r) const
+{
+ //
+ // Comutes the radial translation of a sector to give the
+ // proper distance between SPD detectors and the beam pipe.
+ // Units in are units out.
+ //
+
+ //Begin_Html
+ /*
+ <A HREF="http://www.physics.ohio-state.edu/HIRG/SoftWareDoc/SPD_Sector_Position.png">
+ Figure showing the geometry used in the computation below. </A>
+ */
+ //End_Html
+
// Inputs:
- // const Char_t *filepath Path where the figure is to be drawn
- // const Char_t *type The type of file, default is gif.
- // TGeoManager *mgr The TGeoManager default gGeoManager
- // Output:
+ // Double_t x0 Point x0 on Sector surface for the inner
+ // most detector mounting
+ // Double_t y0 Point y0 on Sector surface for the innor
+ // most detector mounting
+ // Double_t x1 Point x1 on Sector surface for the inner
+ // most detector mounting
+ // Double_t y1 Point y1 on Sector surface for the innor
+ // most detector mounting
+ // Double_t r The radial distance this mounting surface
+ // should be from the center of the beam pipe.
+ // Outputs:
// none.
// Return:
- // none.
- TGeoXtru *sA0,*sA1,*sB0,*sB1;
- //TPolyMarker *pmA,*pmB;
- TPolyLine plA0,plA1,plB0,plB1;
- TCanvas *canvas;
- TLatex txt;
- Double_t x=0.0,y=0.0;
- Int_t i,kNRadii=6;
-
- if(strcmp(filepath,"")){
- Error("CreateFigure0","filepath=%s type=%s",filepath,type);
- } // end if
- //
- sA0 = (TGeoXtru*) mgr->GetVolume(
- "ITSSPDCarbonFiberSupportSectorA0_1")->GetShape();
- sA1 = (TGeoXtru*) mgr->GetVolume(
- "ITSSPDCarbonFiberSupportSectorAirA1_1")->GetShape();
- sB0 = (TGeoXtru*) mgr->GetVolume(
- "ITSSPDCarbonFiberSupportSectorEndB0_1")->GetShape();
- sB1 = (TGeoXtru*) mgr->GetVolume(
- "ITSSPDCarbonFiberSupportSectorEndAirB1_1")->GetShape();
- //pmA = new TPolyMarker();
- //pmA.SetMarkerStyle(2); // +
- //pmA.SetMarkerColor(7); // light blue
- //pmB = new TPolyMarker();
- //pmB.SetMarkerStyle(5); // X
- //pmB.SetMarkerColor(6); // purple
- plA0.SetPolyLine(sA0->GetNvert());
- plA0.SetLineColor(1); // black
- plA0.SetLineStyle(1);
- plA1.SetPolyLine(sA1->GetNvert());
- plA1.SetLineColor(2); // red
- plA1.SetLineStyle(1);
- plB0.SetPolyLine(sB0->GetNvert());
- plB0.SetLineColor(3); // Green
- plB0.SetLineStyle(2);
- plB1.SetPolyLine(sB1->GetNvert());
- plB1.SetLineColor(4); // Blue
- plB1.SetLineStyle(2);
- //for(i=0;i<kNRadii;i++) pmA.SetPoint(i,xyB1p[i][0],xyB1p[i][1]);
- //for(i=0;i<kNRadii;i++) pmB.SetPoint(i,xyB1p[i][0],xyB1p[i][1]);
- for(i=0;i<sA0->GetNvert();i++) plA0.SetPoint(i,sA0->GetX(i),sA0->GetY(i));
- for(i=0;i<sA1->GetNvert();i++) plA1.SetPoint(i,sA1->GetX(i),sA1->GetY(i));
- for(i=0;i<sB0->GetNvert();i++) plB0.SetPoint(i,sB0->GetX(i),sB0->GetY(i));
- for(i=0;i<sB1->GetNvert();i++) plB1.SetPoint(i,sB1->GetX(i),sB1->GetY(i));
- canvas = new TCanvas("AliITSv11GeometrySPDFig0","",1000,1000);
- canvas->Range(-3.,-3.,3.,3.);
- txt.SetTextSize(0.05);
- txt.SetTextAlign(33);
- txt.SetTextColor(1);
- txt.DrawLatex(2.9,2.9,"Section A-A outer Carbon Fiber surface");
- txt.SetTextColor(2);
- txt.DrawLatex(2.9,2.5,"Section A-A Inner Carbon Fiber surface");
- txt.SetTextColor(3);
- txt.DrawLatex(2.9,2.1,"Section E-E outer Carbon Fiber surface");
- txt.SetTextColor(4);
- txt.DrawLatex(2.9,1.7,"Section E-E Inner Carbon Fiber surface");
- plA0.Draw();
- plA1.Draw();
- plB0.Draw();
- plB1.Draw();
- //pmA.Draw();
- //pmB.Draw();
- //
- x = 1.0;
- y = -2.5;
- Char_t chr[3];
- for(i=0;i<kNRadii;i++){
- sprintf(chr,"%2d",i);txt.DrawLatex(x-0.1,y,chr);
- sprintf(chr,"%8.4f",5.000);txt.DrawLatex(x,y,chr);
- sprintf(chr,"%8.4f",5.000);txt.DrawLatex(x+0.5,y,chr);
- sprintf(chr,"%8.4f",5.000);txt.DrawLatex(x+1.0,y,chr);
- sprintf(chr,"%8.4f",5.000);txt.DrawLatex(x+1.5,y,chr);
- sprintf(chr,"%8.4f",5.000);txt.DrawLatex(x+2.0,y,chr);
- if(kTRUE) txt.DrawLatex(x+2.5,y,"A-A/E-E");
- else txt.DrawLatex(x+2.5,y,"E-E");
- } // end for i
- txt.DrawLatex(x,y,"x_{c} mm");
- txt.DrawLatex(x+0.5,y,"y_{c} mm");
- txt.DrawLatex(x+1.0,y,"R mm");
- txt.DrawLatex(x+1.5,y,"#theta_{start}^{#circle}");
- txt.DrawLatex(x+2.0,y,"#theta_{end}^{#circle}");
- txt.DrawLatex(x+2.5,y,"Section");
+ // The distance the SPD sector should be displaced radialy.
//
+ Double_t a,b,c;
+
+ a = x0-x1;
+ if(a==0.0) return 0.0;
+ a = (y0-y1)/a;
+ b = TMath::Sqrt(1.0+a*a);
+ c = y0-a*x0-r*b;
+ return -c;
}
-//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::PrintAscii(ostream *os)const{
+
+//______________________________________________________________________
+void AliITSv11GeometrySPD::PrintAscii(ostream *os) const
+{
+ //
// Print out class data values in Ascii Form to output stream
// Inputs:
// ostream *os Output stream where Ascii data is to be writen
// none.
// Return:
// none.
+ //
+ Int_t i,j,k;
#if defined __GNUC__
#if __GNUC__ > 2
ios::fmtflags fmt = cout.flags();
Int_t fmt;
#endif
#endif
+
+ *os<< fgkGapLadder <<" "<< fgkGapHalfStave<<" "<< 6 <<" ";
+ for(i=0;i<6;i++) *os<< fAddStave[i] <<" "<<fSPDsectorX0.GetSize();
+ for(i=0;i<fSPDsectorX0.GetSize();i++) *os<< fSPDsectorX0.GetAt(i) << " ";
+ for(i=0;i<fSPDsectorX0.GetSize();i++) *os<< fSPDsectorY0.GetAt(i) << " ";
+ for(i=0;i<fSPDsectorX1.GetSize();i++) *os<< fSPDsectorX1.GetAt(i) << " ";
+ for(i=0;i<fSPDsectorX1.GetSize();i++) *os<< fSPDsectorY1.GetAt(i) << " ";
+ *os<<10<<" "<< 2 <<" " << 6 << " "<< 3 <<" ";
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
+ *os<<fTubeEndSector[k][0][i][j]<<" ";
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
+ *os<<fTubeEndSector[k][1][i][j]<<" ";
os->flags(fmt); // reset back to old Formating.
return;
}
//
-//__________________________________________________________________________________________
-void AliITSv11GeometrySPD::ReadAscii(istream* /* is */){
+//______________________________________________________________________
+void AliITSv11GeometrySPD::ReadAscii(istream* is)
+{
+ //
// Read in class data values in Ascii Form to output stream
// Inputs:
// istream *is Input stream where Ascii data is to be read in from
// none.
// Return:
// none.
+ //
+ Int_t i,j,k,n;
+ Double_t gapLadder,GapHalfStave;
+ const Int_t kLimits = 100;
+ *is>>gapLadder>>GapHalfStave>>n;
+ if(n!=6){
+ AliError(Form("fAddStave Array !=6 n=%d",n));
+ return;
+ } // end if
+ for(i=0;i<n;i++) *is>>fAddStave[i];
+ *is>>n;
+ if(n<0 || n> kLimits){
+ AliError("Anomalous value for parameter n");
+ return;
+ }
+ fSPDsectorX0.Set(n);
+ fSPDsectorY0.Set(n);
+ fSPDsectorX1.Set(n);
+ fSPDsectorY1.Set(n);
+ for(i=0;i<n;i++) *is>>fSPDsectorX0[i];
+ for(i=0;i<n;i++) *is>>fSPDsectorY0[i];
+ for(i=0;i<n;i++) *is>>fSPDsectorX1[i];
+ for(i=0;i<n;i++) *is>>fSPDsectorY1[i];
+ *is>> i>>j>>n;
+ if(i!=2||j!=6||n!=3){
+ Warning("ReadAscii","fTubeEndSector array wrong size [2][6][3],"
+ "found [%d][%d][%d]",i,j,n);
+ return;
+ } // end if
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
+ *is>>fTubeEndSector[k][0][i][j];
+ for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
+ *is>>fTubeEndSector[k][1][i][j];
+ return;
}
//
-//__________________________________________________________________________________________
-ostream &operator<<(ostream &os,const AliITSv11GeometrySPD &s){
+//______________________________________________________________________
+ostream &operator<<(ostream &os,const AliITSv11GeometrySPD &s)
+{
+ //
// Standard output streaming function
// Inputs:
// ostream &os output steam
// none.
// Return:
// ostream &os The stream pointer
-
+ //
s.PrintAscii(&os);
return os;
}
//
-//__________________________________________________________________________________________
-istream &operator>>(istream &is,AliITSv11GeometrySPD &s){
+//______________________________________________________________________
+istream &operator>>(istream &is,AliITSv11GeometrySPD &s)
+{
+ //
// Standard inputput streaming function
// Inputs:
// istream &is input steam
// none.
// Return:
// ostream &os The stream pointer
-
+ //
s.ReadAscii(&is);
return is;
}
-//
-//__________________________________________________________________________________________
-Bool_t AliITSv11GeometrySPD::Make2DCrossSections(TPolyLine &a0,TPolyLine &a1,
- TPolyLine &b0,TPolyLine &b1,TPolyMarker &p)const{
- // Fill the objects with the points representing
- // a0 the outer carbon fiber SPD sector shape Cross Section A
- // a1 the inner carbon fiber SPD sector shape Cross Section A
- // b0 the outer carbon fiber SPD sector shape Cross Section B
- // b1 the inner carbon fiber SPD sector shape Cross Section B
- //
- // Inputs:
- // TPolyLine &a0 The outer carbon fiber SPD sector shape
- // TPolyLine &a1 The Inner carbon fiber SPD sector shape
- // TPolyLine &b0 The outer carbon fiber SPD sector shape
- // TPolyLine &b1 The Inner carbon fiber SPD sector shape
- // TPolyMarker &p The points where the ladders are to be placed
- // Outputs:
- // TPolyLine &a0 The shape filled with the points
- // TPolyLine &a1 The shape filled with the points
- // TPolyLine &b0 The shape filled with the points
- // TPolyLine &b1 The shape filled with the points
- // TPolyMarker &p The filled array of points
- // Return:
- // An error flag.
- Int_t n0,n1,i;
- Double_t x,y;
- TGeoVolume *a0V,*a1V,*b0V,*b1V;
- TGeoXtru *a0S,*a1S,*b0S,*b1S;
- TGeoManager *mgr = gGeoManager;
-
- a0V = mgr->GetVolume("ITS SPD Carbon fiber support Sector A0");
- a0S = dynamic_cast<TGeoXtru*>(a0V->GetShape());
- n0 = a0S->GetNvert();
- a0.SetPolyLine(n0+1);
- //for(i=0;i<fSPDsectorPoints0.GetSize();i++)
- // printf("%d %d %d\n",i,fSPDsectorPoints0[i],fSPDsectorPoints1[i]);
- for(i=0;i<n0;i++){
- x = a0S->GetX(i);
- y = a0S->GetY(i);
- //printf("%d %g %g\n",i,x,y);
- a0.SetPoint(i,x,y);
- if(i==0) a0.SetPoint(n0,x,y);
- } // end for i
- a1V = mgr->GetVolume("ITSSPDCarbonFiberSupportSectorAirA1");
- a1S = dynamic_cast<TGeoXtru*>(a1V->GetShape());
- n1 = a1S->GetNvert();
- a1.SetPolyLine(n1+1);
- for(i=0;i<n1;i++){
- x = a1S->GetX(i);
- y = a1S->GetY(i);
- a1.SetPoint(i,x,y);
- if(i==0) a1.SetPoint(n1,x,y);
- } // end for i
- // Cross Section B
- b0V = mgr->GetVolume("ITSSPDCarbonFiberSupportSectorEndB0");
- b0S = dynamic_cast<TGeoXtru*>(b0V->GetShape());
- n0 = b0S->GetNvert();
- b0.SetPolyLine(n0+1);
- for(i=0;i<n0;i++){
- x = b0S->GetX(i);
- y = b0S->GetY(i);
- b0.SetPoint(i,x,y);
- if(i==0) b0.SetPoint(n0,x,y);
- } // end for i
- b1V = mgr->GetVolume("ITSSPDCarbonFiberSupportSectorEndAirB1");
- b1S = dynamic_cast<TGeoXtru*>(b1V->GetShape());
- n1 = b1S->GetNvert();
- b1.SetPolyLine(n1+1);
- for(i=0;i<n1;i++){
- x = b1S->GetX(i);
- y = b1S->GetY(i);
- b1.SetPoint(i,x,y);
- if(i==0) b1.SetPoint(n1,x,y);
- } // end for i
- //
- Double_t x0,y0,x1,y1;
- p.SetPolyMarker(2*fSPDsectorX0.GetSize());
- for(i=0;i<fSPDsectorX0.GetSize();i++){
- GetSectorMountingPoints(i,x0,y0,x1,y1);
- p.SetPoint(2*i,x0,y0);
- p.SetPoint(2*i+1,x1,y1);
- } // end for i
- return kTRUE;
-}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff