**************************************************************************/
//
// This class Defines the Geometry for the ITS services and support cones
-// outside of the central volume (except for the Central support
+// 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
#include "AliITSv11GeometrySPD.h"
// Constant definistions
-const Double_t AliITSv11GeometrySPD::fgkGapLadder =
+const Double_t AliITSv11GeometrySPD::fgkGapLadder =
AliITSv11Geometry::fgkmicron*75.; // 75 microns
-const Double_t AliITSv11GeometrySPD::fgkGapHalfStave =
+const Double_t AliITSv11GeometrySPD::fgkGapHalfStave =
AliITSv11Geometry::fgkmicron*120.; // 120 microns
ClassImp(AliITSv11GeometrySPD)
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
+fTubeEndSector() // coordinate of cooling tube ends
{
//
// Default constructor.
- // This does not initialize anything and is provided just for
+ // 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:
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
+fTubeEndSector() // coordinate of cooling tube ends
{
//
// Constructor with debug setting argument
} // end for i,j
}
//______________________________________________________________________
-AliITSv11GeometrySPD& AliITSv11GeometrySPD::operator=(const
+AliITSv11GeometrySPD& AliITSv11GeometrySPD::operator=(const
AliITSv11GeometrySPD &s)
{
//
TGeoManager *mgr) const
{
//
- // This function is used to recovery any medium
- // used to build the geometry volumes.
- // If the required medium does not exists,
+ // 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];
//
// Define the specific materials used for the ITS SPD central detectors.
// ---
- // NOTE: These are the same old names.
+ // NOTE: These are the same old names.
// By the ALICE naming conventions, they start with "ITS SPD ...."
// Data taken from ** AliITSvPPRasymmFMD::CreateMaterials() **.
// ---
// 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
params[7] = kstmin;
med = new TGeoMedium("ITSspdCarbonFiber", medindex++, mix, params);
- // air defined as a mixture of C-N-O-Ar:
+ // 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);
//
// Do all SPD Central detector initializations (e.g.: transport cuts).
// ---
- // Here follow some GEANT3 physics switches, which are interesting
+ // 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]
// - "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
+ // 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
+ // 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.
//
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);
void AliITSv11GeometrySPD::SPDSector(TGeoVolume *moth, TGeoManager *mgr)
{
//
- // Creates a single SPD carbon fiber sector and places it
+ // 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
+ // 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.
//
/*
<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
+ <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">
// Return:
// none.
// Updated values for kSPDclossesStaveAA, kBeamPipeRadius, and
- // staveThicknessAA are taken from
+ // 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 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;
TGeoMedium *medSPDcf;
- // Define an assembly and fill it with the support of
+ // 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");
//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 < kNSectorsTotal; i++) {
shiftX = -radiusSector * TMath::Sin(angle/fgkRadian);
shiftY = radiusSector * TMath::Cos(angle/fgkRadian);
- //cout << "ANGLE = " << angle << endl;
+ //cout << "ANGLE = " << angle << endl;
shiftX += 0.1094 * TMath::Cos((angle + 196.)/fgkRadian);
shiftY += 0.1094 * TMath::Sin((angle + 196.)/fgkRadian);
//shiftX -= 0.105;
} // end for i
if(GetDebug(3)) moth->PrintNodes();
delete secRot;
-
+
CreateCones(moth);
}
//______________________________________________________________________
// 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
// 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
+ // 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
+ // 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 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
ksecY10, ksecY11, -1000.0,
ksecY12, -1000.0
};
- Double_t secR[ksecNRadii] = {
+ Double_t secR[ksecNRadii] = {
ksecR0, ksecR1, -.5 * ksecDipLength - ksecDipRadii,
ksecR2, ksecR3, -.5 * ksecDipLength - ksecDipRadii,
ksecR4, ksecR5, -.5 * ksecDipLength - ksecDipRadii,
ksecR10, ksecR11, ksecRCoolOut,
ksecR12, ksecR13
};
- Double_t secDip2[ksecNCoolingTubeDips] = {
- ksecDl1, ksecDl2, ksecDl3,
- ksecDl4, ksecDl5, ksecDl6
+ Double_t secDip2[ksecNCoolingTubeDips] = {
+ ksecDl1, ksecDl2, ksecDl3,
+ ksecDl4, ksecDl5, ksecDl6
};
Double_t secX3[ksecNRadii];
Double_t secY3[ksecNRadii];
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];
t = secDip2[i] / t0;
a = x0+(x1-x0) * t;
b = y0+(y1-y0) * t;
- if(i == 0) {
+ 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.
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) *
+ 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;
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],
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.;
yp[j][k] = y0+(y1-y0) * t;
} // end for k
secAngleTurbo[i] = -TMath::RadToDeg() * TMath::ATan2(y1-y0, x1-x0);
- if(GetDebug(3)) {
+ if(GetDebug(3)) {
AliInfo(
Form("i=%d -- angle=%f -- x0,y0=(%f, %f) -- x1,y1=(%f, %f)",
i, secAngleTurbo[i], x0, y0, x1, y1));
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);
// 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
+ // cooling tubes. For any "bend/dip/edge, there are
// ksecNPointsPerRadii+1 points involved.
if(i == 0) j = 1;
else if (i == 1) j = 0;
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]);
// 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",
+ sTA1 = new TGeoEltu("ITS SPD Cooling Tube coolant TA1",
sTA0->GetA() - ksecCoolTubeThick,
sTA0->GetB()-ksecCoolTubeThick,ksecDz);
SPDsectorShape(ksecNRadii,secX2,secY2,secR2,secAngleStart2,secAngleEnd2,
sB1->InspectShape();
sB2->InspectShape();
} // end if(GetDebug(3))
-
+
// create the assembly of the support and place staves on it
TGeoVolumeAssembly *vM0 = new TGeoVolumeAssembly(
"ITSSPDSensitiveVirtualvolumeM0");
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.
// ---
// 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;
return kTRUE;
}
//______________________________________________________________________
-void AliITSv11GeometrySPD::SPDsectorShape(Int_t n,const Double_t *xc,
+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,
+ const Double_t *ths, const Double_t *the,
Int_t npr, Int_t &m, Double_t **xp, Double_t **yp) const
{
//
// 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]
+ // 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.
// 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
+ // size[2] = 'width' (extension in the direction perp. to the
// above ones)
// 3 - the used TGeoManager
- // ** CRITICAL CHECK **
+ // ** CRITICAL CHECK **
// layer number can be ONLY 1 or 2
if (layer != 1 && layer != 2) AliFatal("Layer number MUST be 1 or 2");
TGeoMedium *medSPDSiChip = GetMedium("SPD SI CHIP$",mgr); // SPD SI CHIP
TGeoMedium *medSi = GetMedium("SI$",mgr);
TGeoMedium *medBumpBond = GetMedium("COPPER$",mgr); // ??? BumpBond
-
- // ** SIZES **
+
+ // ** SIZES **
Double_t chipThickness = fgkmm * 0.150;
Double_t chipWidth = fgkmm * 15.950;
Double_t chipLength = fgkmm * 13.600;
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
+ 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;
// 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
+ // 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
+ // 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.};
// 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
+ // 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,
// 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
+ // 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:
y = 0.5 * (chipThickness - thickness);
z = 0.0;
for (i = 0; i < 5; i++) {
- z = -0.5*length + guardRingWidth
+ 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);
// 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
+ // size[2] = 'width' (extension in the direction perp. to the
// above ones)
// 3 - the used TGeoManager
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 bbWidth = sensWidth;
Double_t bbThickness = fgkmm * 0.012;
Double_t bbPos = 0.080; // Z position w.r. to left pixel edge
-
+
// the three dimensions of the box which contains the ladder
// are returned in the 'sizes' argument, and are used for volumes positionement
// for readability purpose, they are linked by reference to a more meaningful name
thickness = sensThickness + chipThickness + bbThickness;
// ** VOLUMES *************************************************************
-
+
// This is a sensitive volume.
// Local X must correspond to x coordinate of the sensitive volume:
- // to respect this, the origin of the local reference system
- // must be shifted from the middle of the box, using
+ // to respect this, the origin of the local reference system
+ // must be shifted from the middle of the box, using
// an additional option ('originShift') when creating the container shape:
Double_t xSens = 0.5 * (width - sensWidth - 2.0*guardRingWidth);
Double_t originShift[3] = {-xSens, 0., 0.};
-
+
// now the container is a TGeoBBox with this shift,
// and the volume is made of air (it does not exist in reality)
TGeoBBox *shLadder = new TGeoBBox(0.5*width, 0.5*thickness, 0.5*length, originShift);
TGeoVolume *vLadder = new TGeoVolume(Form("ITSSPDlay%d-Ladder", layer), shLadder, medAir);
-
+
// the chip is a common box
- TGeoVolume *vChip = mgr->MakeBox("ITSSPDchip", medSPDSiChip,
+ TGeoVolume *vChip = mgr->MakeBox("ITSSPDchip", medSPDSiChip,
0.5*chipWidth, 0.5*chipThickness, 0.5*chipLength);
-
+
// to build the sensor with its guard ring, we create a TGeoBBox with the size
- // of the sensor + guard ring, and we insert the true sensor into it as an
+ // of the sensor + guard ring, and we insert the true sensor into it as an
// internal node: this simplifies the implementation with the same result
TGeoVolume *vSensGuard = mgr->MakeBox(Form("%s-guardRing", GetSenstiveVolumeName(layer)),
- medSi,
+ medSi,
0.5*sensWidth + guardRingWidth,
0.5*sensThickness,
0.5*sensLength + guardRingWidth);
0.5*sensWidth,0.5*sensThickness,0.5*sensLength);
vSensGuard->AddNode(vSens, 0);
vSensGuard->SetTransparency(50);
-
+
// bump bond is a common box for one whole column
TGeoVolume *vBB = mgr->MakeBox("ITSSPDbb", medBumpBond,
0.5*bbWidth, 0.5*bbThickness, 0.5*bbLength);
-
+
// set colors of all objects for visualization
vLadder->SetLineColor(kRed);
vSens->SetLineColor(kYellow + 1);
// sensor is translated along thickness (Y) and width (X)
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
+ // 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:
y = 0.5 * (chipThickness - thickness);
z = 0.0;
for (i = 0; i < 5; i++) {
- z = -0.5*length + guardRingWidth
+ 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
vLadder->AddNode(vSensGuard, 1, trSens);
//vLadderAddNode(volBorder, 1, trSens);
// 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
+ // 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 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
+ 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)) *
+ 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[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[5] = y[4];
y[6] = y[1] + thickness;
y[7] = y[0] + thickness;
-
+
sizes.Set(7);
sizes[0] = totalLength;
sizes[1] = fullHeight;
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,
Double_t thickness,TArrayD &sizes)
{
//
- // Creates the typical composite shape of the grounding foil:
- //
+ // Creates the typical composite shape of the grounding foil:
+ //
// +---------------------------------------------------------+
// | 5 6 9 |
// | +-----------+ +------------+ 10
// 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
+ // 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
+ // 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
+ // 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
+ // 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)
+ // 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
+ // 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
+ // 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
+ // 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;
sprintf(type,"Glue2");
break;
}
- // we divide the shape in several slices along the horizontal
- // direction (local X) here we define define the length of all
+ // 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,
sliceLength[5] += fgkmm * 0.4;
sliceLength[6] -= fgkmm * 0.4;
} // end if itype ==1
-
- // as shown in the drawing, we have four different widths
+
+ // 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;
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);
-
- // 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,
+
+ // 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;
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
+ 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
+ Double_t holeSepXC = fgkmm * 14.00; // separation between the centers
// of two consecutive holes
- Double_t holeSepX1 = fgkmm * 15.42; // separation between centers of
+ Double_t holeSepX1 = fgkmm * 15.42; // separation between centers of
// 5th and 6th hole
- Double_t holeSepX2 = fgkmm * 22.00; // separation between centers of
+ Double_t holeSepX2 = fgkmm * 22.00; // separation between centers of
// 10th and 11th hole
if (itype == 1) {
holeSepX0 -= fgkmm * 0.2;
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)
TGeoBBox *shHole = 0;
shHole = 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
+ // starting from the first value of X, they are simply
// shifted along this axis
char name[200];
TGeoTranslation *transHole[11];
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;
}
//______________________________________________________________________
-TGeoVolume* AliITSv11GeometrySPD::CreateGroundingFoil(Bool_t isRight,
+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.
+ // 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
// 4) another layer of glue
// ---
// Arguments:
- // 1: a boolean value to know if it is the grounding foir for
+ // 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
+ // - 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
+ // - 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
+ // 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
+ // 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$", mgr); //??? GLUE_GF_SUPPORT
-
+
// compute the volume shapes (thicknesses change from one to the other)
Double_t kpLength, kpWidth, alLength, alWidth;
TArrayD kpSize, alSize, glSize;
g0Thickness, glSize);
TGeoCompositeShape *g1Shape = CreateGroundingFoilShape(3,kpLength,kpWidth,
g1Thickness, glSize);
- // create the component volumes and register their sizes in the
- // passed arrays for readability reasons, some reference variables
+ // create the component volumes and register their sizes in the
+ // passed arrays for readability reasons, some reference variables
// explicit the meaning of the array slots
TGeoVolume *kpVol = new TGeoVolume(Form("ITSSPDgFoilKap%s",suf),
kpShape, medKap);
Double_t &fullThickness = sizes[0];
Double_t &fullLength = sizes[1];
Double_t &fullWidth = sizes[2];
- // kapton leads the larger dimensions of the foil
+ // kapton leads the larger dimensions of the foil
// (including the cited small distance from Z=0 stave reference plane)
// the thickness is the sum of the ones of all components
fullLength = kpLength + dist;
fullWidth = kpWidth;
fullThickness = kpThickness + alThickness + g0Thickness + g1Thickness;
// create the container
- TGeoMedium *air = GetMedium("AIR$", mgr);
- 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
+// 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
+ 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;
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;
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
+ 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[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
+ // - sizes[9] = separation between the upper hole border and
// the foil border
Double_t holeLength = kpSize[0];
Double_t holeWidth = kpSize[1];
// - 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 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
+ // - 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
+ // - an array passed by reference which will contain the size of
// the virtual container.
// - a pointer to the used TGeoManager.
//
TGeoMedium *medChip = GetMedium("SPD SI CHIP$",mgr);
TGeoMedium *medCap = GetMedium("AL$",mgr);
- // The shape of the MCM is divided into 3 sectors with different
+ // The shape of the MCM is divided into 3 sectors with different
// widths (Y) and lengths (X), like in this sketch:
//
- // 0 1 2
+ // 0 1 2
// +---------------------+-----------------------------------+
// | 4 sect 2 |
// | 6 sect 1 /-------------------+
// 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.
+ // 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;
width = sizeYsector[0];
thickness = mcmThickness + capHeight;
- // define all the relevant vertices of the polygon
+ // define all the relevant vertices of the polygon
// which defines the transverse shape of the MCM.
- // These values are used to several purposes, and
+ // 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;
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
+ // 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,
+
+ // 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];
j++;
} // end for i
- // define positions of chips,
+ // 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];
chipThickness[i] *= fgkmm;
} // end for i
- // create shapes for MCM
+ // create shapes for MCM
Double_t z1, z2;
TGeoXtru *shBase = new TGeoXtru(2);
z1 = -0.5*thickness;
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
+ // 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));
shCapIn->DefineSection(1, z2 + 0.01, 0., 0., 1.0);
// compose shapes
TGeoCompositeShape *shCapBorder = new TGeoCompositeShape(
- Form("ITSSPDshBORDER%s", suf),
+ 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
+ // 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;
// add cap border
mcmAssembly->AddNode(volCapBorder, 1, gGeoIdentity);
// add cap top
- mcmAssembly->AddNode(volCapTop, 1, gGeoIdentity);
+ mcmAssembly->AddNode(volCapTop, 1, gGeoIdentity);
return mcmAssembly;
}
(Bool_t isRight, TArrayD &sizes, TGeoManager *mgr) const
{
//
- // The pixel bus is implemented as a TGeoBBox with some objects on it,
+ // 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
+ // 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
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 * (285.0 - ext1Length + extThickness);
Double_t extWidth = fgkmm * 11.0;
Double_t extHeight = fgkmm * 2.5;
-
-
- // position of pt1000, resistors and capacitors depends on the
+
+
+ // position of pt1000, resistors and capacitors depends on the
// bus if it's left or right one
if (!isRight) {
pt1000Y = 64400.;
pt1000Z[6] = 916200.;
pt1000Z[7] = 1056200.;
pt1000Z[8] = 1196200.;
- pt1000Z[9] = 1336200.;
+ pt1000Z[9] = 1336200.;
resZ[0] = 1397500.;
resY[0] = 26900.;
resZ[1] = 682500.;
pt1000Z[6] = 1169700.;
pt1000Z[7] = 1309700.;
pt1000Z[8] = 1449700.;
- pt1000Z[9] = 1589700.;
+ pt1000Z[9] = 1589700.;
capY[0] = 44500.;
capZ[0] = 266700.;
capY[1] = 44300.;
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;
+ fullThickness = busThickness + capThickness;
// ** VOLUMES **
TGeoVolumeAssembly *container = new TGeoVolumeAssembly("PixelBus");
TGeoVolume *bus = mgr->MakeBox("Bus", medBus, 0.5*busThickness, 0.5*busWidth, 0.5*busLength);
ext1->SetLineColor(kGray);
ext2->SetLineColor(kGray);
ext3->SetLineColor(kGray);
-
+
// ** MOVEMENTS AND POSITIONEMENT **
// bus
- TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
+ TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
fullThickness), 0.0, 0.0);
container->AddNode(bus, 0, trBus);
Double_t zRef, yRef, x, y, z;
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;
}
*/
(Bool_t isRight, Int_t ilayer, TArrayD &sizes, TGeoManager *mgr) const
{
//
- // The pixel bus is implemented as a TGeoBBox with some objects on it,
+ // 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
+ // 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");
// Capacity
TGeoMedium *medCap = GetMedium("SDD X7R capacitors$",mgr);
// ??? Resistance
- //TGeoMedium *medRes = GetMedium("SDD X7R capacitors$",mgr);
+ //TGeoMedium *medRes = GetMedium("SDD X7R capacitors$",mgr);
TGeoMedium *medRes = GetMedium("ALUMINUM$",mgr);
TGeoMedium *medExt = GetMedium("SDDKAPTON (POLYCH2)$", mgr);
// ** SIZES & POSITIONS **
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
+
+ // position of pt1000, resistors and capacitors depends on the
// bus if it's left or right one
if (!isRight) {
pt1000Y = 64400.;
pt1000Z[6] = 916200.;
pt1000Z[7] = 1056200.;
pt1000Z[8] = 1196200.;
- pt1000Z[9] = 1336200.;
+ pt1000Z[9] = 1336200.;
resZ[0] = 1397500.;
resY[0] = 26900.;
resZ[1] = 682500.;
pt1000Z[6] = 1169700.;
pt1000Z[7] = 1309700.;
pt1000Z[8] = 1449700.;
- pt1000Z[9] = 1589700.;
+ pt1000Z[9] = 1589700.;
capY[0] = 44500.;
capZ[0] = 266700.;
capY[1] = 44300.;
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;
+ fullThickness = busThickness + capThickness;
// ** VOLUMES **
TGeoVolumeAssembly *container = new TGeoVolumeAssembly("ITSSPDpixelBus");
- TGeoVolume *bus = mgr->MakeBox("ITSSPDbus", medBus, 0.5*busThickness,
+ 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);
0.5*resWidth, 0.5*resLength);
TGeoVolume *cap = mgr->MakeBox("ITSSPDcapacitor", medCap, 0.5*capThickness,
0.5*capWidth, 0.5*capLength);
-
+
TGeoVolume *ext1 = mgr->MakeBox("Extender1", medExt, 0.5*extThickness, 0.5*extWidth, 0.5*ext1Length);
TGeoVolume *ext2 = mgr->MakeBox("Extender2", medExt, 0.5*extHeight - 2.*extThickness, 0.5*extWidth, 0.5*extThickness);
TGeoVolume *ext3 = mgr->MakeBox("Extender3", medExt, 0.5*extThickness, 0.5*(extWidth-0.8*fgkmm), 0.5*ext2Length + extThickness); // Hardcode fix of a small overlap
// ** MOVEMENTS AND POSITIONEMENT **
// bus
- TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
+ TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
fullThickness), 0.0, 0.0);
container->AddNode(bus, 1, trBus);
Double_t zRef, yRef, x, y, z;
TGeoTranslation *tr = new TGeoTranslation(x, y, z);
container->AddNode(res, i+1, tr);
} // end for i
-
+
// extender
if (ilayer == 2) {
if (isRight) {
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;
}
TGeoMedium *medInox = GetMedium("INOX$",mgr);
TGeoMedium *medExt = GetMedium("SDDKAPTON (POLYCH2)$", mgr);
TGeoMedium *medPlate = GetMedium("SPD C (M55J)$", 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 cableThickness = 1.5 * fgkmm;
Double_t cableL1 = 350.0 * fgkmm - extThickness - ext1Length - ext2Length;
Double_t cableL2 = 340.0 * fgkmm;
Double_t cableW1 = 11.0 * fgkmm;
Double_t cableW2 = 30.0 * fgkmm;
Double_t cableW3 = 50.0 * fgkmm;
-
+
Double_t mcmThickness = 1.2 *fgkmm;
Double_t mcmLength = cableL1 + cableL2 + cableL3;
Double_t mcmWidth = cableW1;
-
+
Double_t plateLength = 200.0 * fgkmm;
Double_t plateWidth = 50.0 * fgkmm;
Double_t plateThickness = 5.0 * fgkmm;
-
+
Double_t x[12], y[12];
-
+
x[0] = 7.5;
y[0] = 0.0 + 0.5 * cableW1;
-
+
x[1] = x[0] + cableL1 - 0.5*(cableW2 - cableW1);
y[1] = y[0];
-
- x[2] = x[0] + cableL1;
+
+ x[2] = x[0] + 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];
}
-
+
TGeoVolumeAssembly* container[2];
container[0] = new TGeoVolumeAssembly("ITSSPDConeModule");
container[1] = new TGeoVolumeAssembly("ITSSPDCoolingModule");
-
+
TGeoXtru *shCable = new TGeoXtru(2);
shCable->DefinePolygon(12, x, y);
shCable->DefineSection(0, 0., 0., 0., 1.0);
shCable->DefineSection(1, cableThickness, 0., 0., 1.0);
-
+
TGeoVolume *volCable = new TGeoVolume("ITSSPDExtender", shCable, medExt);
volCable->SetLineColor(kGreen);
-
+
TGeoVolume *volTube = gGeoManager->MakeTube("ITSSPDCoolingTubeCone", medInox, 5.*fgkmm, 6.*fgkmm, 0.5*(x[5] - x[0]));
volTube->SetLineColor(kGray);
-
+
Double_t thickness = cableThickness + mcmThickness;
TGeoBBox *shOut = new TGeoBBox("ITSSPD_shape_plateout", 0.5*plateThickness, 0.5*plateLength, 0.5*plateWidth);
TGeoBBox *shIn = new TGeoBBox("ITSSPD_shape_platein", 0.5*thickness, 0.52*plateLength, 0.5*cableW2);
TGeoCompositeShape *shPlate = new TGeoCompositeShape("ITSSPDPlate_shape", string);
TGeoVolume *volPlate = new TGeoVolume("ITSSPDPlate", shPlate, medPlate);
volPlate->SetLineColor(kRed);
-
+
TGeoVolume *volMCMExt = gGeoManager->MakeBox("ITSSPDextenderMCM", medExt, 0.5*mcmThickness, 0.5*mcmLength, 0.5*mcmWidth);
volMCMExt->SetLineColor(kGreen+3);
-
+
TGeoRotation *rot = new TGeoRotation(*gGeoIdentity);
rot->RotateX(90.0);
rot->RotateZ(90.0);
container[0]->AddNode(volCable, 0, rot);
-
+
TGeoTranslation *combi = new TGeoTranslation(cableThickness + 0.5*mcmThickness, x[0] + 0.5*mcmLength, 0.0);
container[0]->AddNode(volMCMExt, 0, combi);
-
+
TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
rot1->RotateX(87.5);
TGeoCombiTrans *tr = new TGeoCombiTrans(1.15, x[0] + 0.5*(x[5] - x[0]), -2.95, rot1);
container[1]->AddNode(volTube, 0, tr);
-
+
TGeoTranslation *tr1 = new TGeoTranslation(0.5*plateThickness - 0.5*(plateThickness-thickness), x[3] - x[0] - 0.52*plateLength, 0.0);
container[0]->AddNode(volPlate, 0, tr1);
-
+
TList* conemodulelist = new TList();
conemodulelist->Add(container[0]);
conemodulelist->Add(container[1]);
-
+
return conemodulelist;
}
//______________________________________________________________________
void AliITSv11GeometrySPD::CreateCones(TGeoVolume *moth) const
{
-
+
TList* modulelist = CreateConeModule(gGeoManager);
TGeoVolumeAssembly* module;
-
+
//Double_t angle[10] = {18., 54., 90., 126., 162., -18., -54., -90., -126., -162.};
// angleNm for cone modules (cables), angleNc for cooling tubes
Double_t angle1m[10] = {18., 54., 90., 129., 165., 201.0, 237.0, 273.0, 309.0, 345.0};
//
// 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
+ // The origin corresponds to point 0 on the picture, at half-width
+ // in Z direction
//
// Y 7 6 5
// ^ +---+---------------------+
// |--> 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])) /
+ 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]) ,
extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
slopeDeltaX ,
extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
- slopeDeltaX + extenderParams[4],
+ slopeDeltaX + extenderParams[4],
extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
- slopeDeltaX + extenderParams[4],
+ slopeDeltaX + extenderParams[4],
extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
- slopeDeltaX ,
+ slopeDeltaX ,
extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
slopeDeltaX - extenderParams[1] * TMath::Sin(extenderParams[2]) ,
extenderParams[0] ,
// 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
+ // NOTE: to be defined its material and its extension in the outside
// direction
//
// ==== constants =====
// 2*pixelBusThickness*TMath::Sin(pixelBusContactPhi)*
// TMath::Tan(pixelBusContactPhi);
// const Double_t pbExtenderDeltaZ = pbExtenderTopZ-pbExtenderBaseZ;
- // const Double_t pbExtenderEndPointX = 2*deltaZOrigin -
+ // 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 +
+ // const Double_t pbExtenderXtru4L = (pbExtenderDeltaZ +
// pixelBusThickness*(TMath::Cos(extenderSlope)-2))/
// TMath::Sin(extenderSlope);
// const Double_t kMcmExtenderEndPointX = deltaZOrigin - 48.2 * fgkmm;
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);
// pixelBusContactPhi, //2
// pixelBusRaiseLength, //3
// pixelBusWidthY}; //4
-
+
// Double_t pbExtenderValues[8] = {pixelBusRaiseLength, //0
// pixelBusContactPhi, //1
// pbExtenderXtru3L, //2
// pbExtenderXtru4L, //5
// pbExtenderEndPointX, //6
// kPbExtenderWidthY}; //7
-
+
// Double_t mcmExtenderValues[6] = {mcmExtenderXtru3L, //0
// mcmExtenderThickness, //1
// extenderSlope, //2
// mcmExtenderEndPointX, //4
// mcmExtenderWidthY}; //5
// TGeoVolumeAssembly *pixelBus=new TGeoVolumeAssembly("ITSSPDpixelBus");
- // CreatePixelBus(pixelBus,pixelBusValues,medPixelBus);
+ // CreatePixelBus(pixelBus,pixelBusValues,medPixelBus);
// TGeoVolumeAssembly *pbExtender = new TGeoVolumeAssembly(
// "ITSSPDpixelBusExtender");
// CreatePixelBusExtender(pbExtender,pbExtenderValues,medPBExtender);
// commonRot->MultiplyBy(new TGeoRotation("rot",-90,0,0));
// TGeoTranslation * pixelBusTrans = new TGeoTranslation(
// pixelBusThickness/2. - deltaXOrigin + 0.52*fgkmm ,
- // -pixelBusWidthY/2. + deltaYOrigin ,
+ // -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));
+ // TMath::Sin(pixelBusContactPhi));
// if (!zpos) {
// pbExtenderTrans->SetDy(*(pbExtenderTrans->GetTranslation()+1) -
// (pixelBusWidthY - kPbExtenderWidthY)/2.);
// TGeoRotation * mcmExtenderRot = new TGeoRotation(*pbExtenderRot);
// // add pt1000 components
// Double_t pt1000Z = fgkmm * 64400. * 1E-4;
- // //Double_t pt1000X[10] = {319700., 459700., 599700., 739700.,
+ // //Double_t pt1000X[10] = {319700., 459700., 599700., 739700.,
// 879700., 1029700., 1169700., 1309700.,
// 1449700., 1589700.};
// Double_t pt1000X[10] ={66160., 206200., 346200., 486200., 626200.,
// pt1000Z -0.5*pixelBusWidthY);
// pixelBus->AddNode(pt1000, i+1, tr);
// }
-
+
//CREATE FINAL VOLUME ASSEMBLY AND ROTATE IT
TGeoVolumeAssembly *assembly = new TGeoVolumeAssembly("ITSSPDextenders");
// assembly->AddNode((TGeoVolume*)pixelBus,1,
assembly->AddNode(pbExtender,1);
assembly->AddNode(mcmExtender,1);
// assembly->SetTransparency(50);
-
+
return assembly;
}
//______________________________________________________________________
Int_t layer,Int_t idxCentral,Int_t idxSide,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
+ // 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
// 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
+ 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
+ Double_t sepBusCenter = fgkmm * 0.3; // sep. btw the bus central edge
// and the Z=0 plane in stave ref.
// ** VOLUMES **
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 &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;
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
+ // 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
+ // 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) +
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 (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 +
+ 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 +
+ if (!isRight) zMCM = zLadOut + 0.5*ladderLength + 0.5*mcmLength +
sepLadderMCM;
// create the correction rotations
TGeoCombiTrans *trMCM = new TGeoCombiTrans(xMCM, yMCM, zMCM, rotMCM);
// glue between ladders and pixel bus
- Double_t xLadGlue = xLad + 0.5*ladderThickness + 0.01175 -
+ Double_t xLadGlue = xLad + 0.5*ladderThickness + 0.01175 -
fgkGapLadder + 0.5*ladGlueThickness;
// bus (length and thickness direction)
// 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
+ // - 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
+ // - 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
+ // - the layer number, which determines the displacement and naming
// of sensitive volumes
- // - a TArrayD passed by reference which will contain the size
+ // - a TArrayD passed by reference which will contain the size
// of virtual box containing the stave
// - the TGeoManager
//
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:
+ // 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
+ // 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;
idxCentralR = 2;
idxSideR = 3;
} // end if layer ==1
-
+
// create the two half-staves
TArrayD sizeL, sizeR;
TGeoVolumeAssembly *hstaveL = CreateHalfStave(kFALSE, layer, idxCentralL,
{
//
// Define a mask which states qhich staves must be placed.
- // It is a string which must contain '0' or '1' depending if
+ // 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
+ // Each place is referred to one of the staves, so the first
// six characters of the string will be checked.
//
Int_t i;
// 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
+ // In the following, the stave numbering order used for arrays is the
// same as defined in the GetSectorMountingPoints():
// /5
// /\/4
// 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
+ 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[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];
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
+ 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++) {
// 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
+ // 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
+ // 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,
+ ParallelPosition(-0.5*staveThickness, -parMovement, angle,
xPos, yPos);
} // end if i==0
if (i == 1) {
- ParallelPosition( 0.5*staveThickness, -parMovement, angle,
+ ParallelPosition( 0.5*staveThickness, -parMovement, angle,
xPos, yPos);
}else {
- ParallelPosition( 0.5*staveThickness, parMovement, angle,
+ ParallelPosition( 0.5*staveThickness, parMovement, angle,
xPos, yPos);
} // end if i==1
// then we go into the true reference frame
yPos += yM;
xPos += corrX[i];
yPos += corrY[i];
- // using the parameters found here, compute the
+ // 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);
rotClip->RotateX(180.0);
Double_t x = staveSizes2[3] + fgkGapHalfStave;
Double_t y = staveSizes2[4];
- Double_t z[4] = { staveSizes2[5], staveSizes2[6],
+ 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],
{
//
// Performs the following steps:
- // 1 - finds a straight line parallel to the one passing through
+ // 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
+ // 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
+ // 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,
+ // 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
+ // According to the signs given to dist1 and dist2, the point is
// found in different position w.r. to the origin
// compute the point
//
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++)
+ 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++)
+ 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;
"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++)
+ 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++)
+ 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;
}
a0S = dynamic_cast<TGeoXtru*>(a0V->GetShape());
n0 = a0S->GetNvert();
a0.SetPolyLine(n0+1);
- //for(i=0;i<fSPDsectorPoints0.GetSize();i++)
+ //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);
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff