1 /**************************************************************************
2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 // This class Defines the Geometry for the ITS services and support cones
17 // outside of the central volume (except for the Central support
18 // cylinders). Other classes define the rest of the ITS, specifically the
19 // SSD support cone, the SSD Support central cylinder, the SDD support cone,
20 // the SDD support central cylinder, the SPD Thermal Shield, The supports
21 // and cable trays on both the RB26 (muon dump) and RB24 sides, and all of
22 // the cabling from the ladders/stave ends out past the TPC.
24 // Here is the calling sequence associated with this file
25 // SPDSector(TGeoVolume *moth,TGeoManager *mgr)
26 // -----CarbonFiberSector(TGeoVolume *moth,Double_t &xAAtubeCenter0,
27 // Double_t &yAAtubeCenter0,TGeoManager *mgr)
28 // -----2* SPDsectorShape(Int_t n,const Double_t *xc,const Double_t *yc,
29 // | const Double_t *r,const Double_t *ths,
30 // | const Double_t *the,Int_t npr,Int_t &m,
31 // | Double_t **xp,Double_t **yp)
32 // -----StavesInSector(TGeoVolume *moth,TGeoManager *mgr)
33 // -----3* CreaeStave(Int_t layer,TArrayD &sizes,Bool_t addClips,
34 // | TGeoManager *mgr)
35 // | -----2* CreateHalfStave(Boot_t isRight,Int_t layer,
36 // | Int_t idxCentral,Int_t idxSide,
37 // | TArrayD &sizes,Bool_t addClips,
38 // | TGeoManager *mgr)
39 // | -----CreateGrondingFoil(Bool_t isRight,TArrayD &sizes,
40 // | | TGeoManager *mgr)
41 // | | -----4* CreateGroundingFoilSingle(Int_t type,
42 // | | TArrayD &sizes,
43 // | | TGeoManger *mgr)
44 // | |----CreateLadder(Int_t layer, TArrayD &sizes,
45 // | | TGeoManager *mgr)
46 // | |----CreateMCM(Bool_t isRight,TArrayD &sizes,
47 // | | TGeoManger *mgr)
48 // | |----CreatePixelBus(Bool_t isRight,TArrayD &sizes,
49 // | | TGeoManager *mgr)
50 // | -----CreateClip(TArrayD &sizes,TGeoManager *mgr)
51 // |----GetSectorMountingPoints(Int_t index,Double_t &x0,
52 // | Double_t &y0,Double_t &x1,
54 // -----3* ParallelPosition(Double_t dist1,Double_t dist2,
55 // Double_t phi,Double_t &x,Double_t &y)
57 // Obsoleate or presently unused routines are: setAddStave(Bool_t *mask),
58 // CreatePixelBusAndExtensions(...) which calles CreateExtender(...).
63 // General Root includes
64 #include <Riostream.h>
68 #include <TPolyLine.h>
69 #include <TPolyMarker.h>
71 // Root Geometry includes
72 #include <TGeoCompositeShape.h>
74 #include <TGeoGlobalMagField.h>
75 #include <TGeoMaterial.h>
76 #include <TGeoMatrix.h>
77 #include <TGeoMedium.h>
78 #include <TGeoTube.h> // contains TGeoTubeSeg
79 #include <TGeoVolume.h>
90 #include "AliITSv11GeometrySPD.h"
91 #include "AliITSv11GeomCableRound.h"
93 // Constant definistions
94 const Double_t AliITSv11GeometrySPD::fgkGapLadder =
95 AliITSv11Geometry::fgkmicron*75.; // 75 microns
96 const Double_t AliITSv11GeometrySPD::fgkGapHalfStave =
97 AliITSv11Geometry::fgkmicron*120.; // 120 microns
102 ClassImp(AliITSv11GeometrySPD)
103 //______________________________________________________________________
104 AliITSv11GeometrySPD::AliITSv11GeometrySPD(/*Double_t gap*/):
105 AliITSv11Geometry(),// Default constructor of base class
106 fAddStave(), // [DEBUG] must be TRUE for all staves which will be
107 // mounted in the sector (used to check overlaps)
108 fSPDsectorX0(0), // X of first edge of sector plane for stave
109 fSPDsectorY0(0), // Y of first edge of sector plane for stave
110 fSPDsectorX1(0), // X of second edge of sector plane for stave
111 fSPDsectorY1(0), // Y of second edge of sector plane for stave
112 fTubeEndSector() // coordinate of cooling tube ends
115 // Default constructor.
116 // This does not initialize anything and is provided just for
117 // completeness. It is recommended to use the other one.
118 // The alignment gap is specified as argument (default = 0.0075 cm).
124 // A default constructed AliITSv11GeometrySPD class.
128 for (i = 0; i < 6; i++) fAddStave[i] = kTRUE;
129 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
130 this->fTubeEndSector[k][0][i][j] = 0.0;
131 this->fTubeEndSector[k][1][i][j] = 0.0;
134 //______________________________________________________________________
135 AliITSv11GeometrySPD::AliITSv11GeometrySPD(Int_t debug/*, Double_t gap*/):
136 AliITSv11Geometry(debug),// Default constructor of base class
137 fAddStave(), // [DEBUG] must be TRUE for all staves which will be
138 // mounted in the sector (used to check overlaps)
139 fSPDsectorX0(0), // X of first edge of sector plane for stave
140 fSPDsectorY0(0), // Y of first edge of sector plane for stave
141 fSPDsectorX1(0), // X of second edge of sector plane for stave
142 fSPDsectorY1(0), // Y of second edge of sector plane for stave
143 fTubeEndSector() // coordinate of cooling tube ends
146 // Constructor with debug setting argument
147 // This is the constructor which is recommended to be used.
148 // It sets a debug level, and initializes the name of the object.
149 // The alignment gap is specified as argument (default = 0.0075 cm).
151 // Int_t debug Debug level, 0= no debug output.
155 // A default constructed AliITSv11GeometrySPD class.
159 for (i = 0; i < 6; i++) fAddStave[i] = kTRUE;
160 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
161 this->fTubeEndSector[k][0][i][j] = 0.0;
162 this->fTubeEndSector[k][1][i][j] = 0.0;
165 //______________________________________________________________________
166 AliITSv11GeometrySPD::AliITSv11GeometrySPD(const AliITSv11GeometrySPD &s):
167 AliITSv11Geometry(s),// Base Class Copy constructor
168 fAddStave(), // [DEBUG] must be TRUE for all staves which will be
169 // mounted in the sector (used to check overlaps)
170 fSPDsectorX0(s.fSPDsectorX0), // X of first edge of sector plane for stave
171 fSPDsectorY0(s.fSPDsectorY0), // Y of first edge of sector plane for stave
172 fSPDsectorX1(s.fSPDsectorX1), // X of second edge of sector plane for stave
173 fSPDsectorY1(s.fSPDsectorY1) // Y of second edge of sector plane for stave
178 // AliITSv11GeometrySPD &s source class
182 // A copy of a AliITSv11GeometrySPD class.
186 for (i = 0; i < 6; i++) this->fAddStave[i] = s.fAddStave[i];
187 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
188 this->fTubeEndSector[k][0][i][j] = s.fTubeEndSector[k][0][i][j];
189 this->fTubeEndSector[k][1][i][j] = s.fTubeEndSector[k][1][i][j];
192 //______________________________________________________________________
193 AliITSv11GeometrySPD& AliITSv11GeometrySPD::operator=(const
194 AliITSv11GeometrySPD &s)
199 // AliITSv11GeometrySPD &s source class
203 // A copy of a AliITSv11GeometrySPD class.
207 if(this==&s) return *this;
208 for (i = 0; i < 6; i++) this->fAddStave[i] = s.fAddStave[i];
209 this->fSPDsectorX0=s.fSPDsectorX0;
210 this->fSPDsectorY0=s.fSPDsectorY0;
211 this->fSPDsectorX1=s.fSPDsectorX1;
212 this->fSPDsectorY1=s.fSPDsectorY1;
213 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++){
214 this->fTubeEndSector[k][0][i][j] = s.fTubeEndSector[k][0][i][j];
215 this->fTubeEndSector[k][1][i][j] = s.fTubeEndSector[k][1][i][j];
219 //______________________________________________________________________
220 TGeoMedium* AliITSv11GeometrySPD::GetMedium(const char* mediumName,
221 const TGeoManager *mgr) const
224 // This function is used to recovery any medium
225 // used to build the geometry volumes.
226 // If the required medium does not exists,
227 // a NULL pointer is returned, and an error message is written.
229 Char_t itsMediumName[30];
231 snprintf(itsMediumName, 30, "ITS_%s", mediumName);
232 TGeoMedium* medium = mgr->GetMedium(itsMediumName);
233 if (!medium) AliError(Form("Medium <%s> not found", mediumName));
238 //______________________________________________________________________
239 void AliITSv11GeometrySPD::SPDSector(TGeoVolume *moth, TGeoManager *mgr)
242 // Creates a single SPD carbon fiber sector and places it
243 // in a container volume passed as first argument ('moth').
244 // Second argument points to the TGeoManager which coordinates
245 // the overall volume creation.
246 // The position of the sector is based on distance of
247 // closest point of SPD stave to beam pipe
248 // (figures all-sections-modules.ps) of 7.22mm at section A-A.
253 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.ps"
254 title="SPD Sector drawing with all cross sections defined">
255 <p>The SPD Sector definition. In
256 <a href="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.hpgl">HPGL</a> format.
257 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly-10-modules.ps"
258 titile="SPD All Sectors end view with thermal sheald">
259 <p>The SPD all sector end view with thermal sheald.
260 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/assembly.ps"
261 title="SPD side view cross section">
262 <p>SPD side view cross section with condes and thermal shealds.
263 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-A_A.jpg"
264 title="Cross section A-A"><p>Cross section A-A.
265 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-B_B.jpg"
266 title="Cross updated section A-A"><p>Cross updated section A-A.
267 <img src="http://physics.mps.ohio-state.edu/~nilsen/ITSfigures/Sezione_layerAA.pdf"
268 title="Cross section B-B"><p>Cross section B-B.
269 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-C_C.jpg"
270 title-"Cross section C-C"><p>Cross section C-C.
271 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-D_D.jpg"
272 title="Cross section D-D"><p>Cross section D-D.
273 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-E_E.jpg"
274 title="Cross section E-E"><p>Cross section E-E.
275 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-F_F.jpg"
276 title="Cross section F-F"><p>Cross section F-F.
277 <img src="http://alice.pd.infn.it/latestdr/Geometric-Revision/SECTION-G_G.jpg"
278 title="Cross section G-G"><p>Cross section G-G.
283 // TGeoVolume *moth Pointer to mother volume where this object
284 // is to be placed in
285 // TGeoManager *mgr Pointer to the TGeoManager used, defaule is
291 // Updated values for kSPDclossesStaveAA, kBeamPipeRadius, and
292 // staveThicknessAA are taken from
293 // http://physics.mps.ohio-state.edu/~nilsen/ITSfigures/Sezione_layerAA.pdf
295 const Double_t kSPDclossesStaveAA = 7.25* fgkmm;
296 const Double_t kSectorStartingAngle = -72.0 * fgkDegree;
297 const Int_t kNSectorsTotal = 10;
298 const Double_t kSectorRelativeAngle = 36.0 * fgkDegree; // = 360.0 / 10
299 const Double_t kBeamPipeRadius = 0.5 * 59.6 * fgkmm; // diam. = 59.6 mm
300 //const Double_t staveThicknessAA = 0.9 *fgkmm; // nominal thickness
301 const Double_t staveThicknessAA = 1.02 * fgkmm; // get from stave geometry.
304 Double_t angle, radiusSector, xAAtubeCenter0, yAAtubeCenter0;
305 TGeoCombiTrans *secRot = new TGeoCombiTrans(), *comrot;
306 TGeoVolume *vCarbonFiberSector[10];
307 TGeoMedium *medSPDcf;
309 // Define an assembly and fill it with the support of
310 // a single carbon fiber sector and staves in it
311 medSPDcf = GetMedium("SPD C (M55J)$", mgr);
312 for(Int_t is=0; is<10; is++)
314 vCarbonFiberSector[is] = new TGeoVolumeAssembly("ITSSPDCarbonFiberSectorV");
315 vCarbonFiberSector[is]->SetMedium(medSPDcf);
316 CarbonFiberSector(vCarbonFiberSector[is], is, xAAtubeCenter0, yAAtubeCenter0, mgr);
319 // Compute the radial shift out of the sectors
320 radiusSector = kBeamPipeRadius + kSPDclossesStaveAA + staveThicknessAA;
321 radiusSector = GetSPDSectorTranslation(fSPDsectorX0.At(1), fSPDsectorY0.At(1),
322 fSPDsectorX1.At(1), fSPDsectorY1.At(1), radiusSector);
323 //radiusSector *= radiusSector; // squaring;
324 //radiusSector -= xAAtubeCenter0 * xAAtubeCenter0;
325 //radiusSector = -yAAtubeCenter0 + TMath::Sqrt(radiusSector);
327 AliDebug(1, Form("SPDSector : radiusSector=%f\n",radiusSector));
329 AliDebug(1, Form("i= %d x0=%f y0=%f x1=%f y1=%f\n", i,
330 fSPDsectorX0.At(i), fSPDsectorY0.At(i),
331 fSPDsectorX1.At(i),fSPDsectorY1.At(i)));
333 // add 10 single sectors, by replicating the virtual sector defined above
334 // and placing at different angles
335 Double_t shiftX, shiftY, tub[2][6][3];
336 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];
337 angle = kSectorStartingAngle;
338 secRot->RotateZ(angle);
339 TGeoVolumeAssembly *vcenteral = new TGeoVolumeAssembly("ITSSPD");
340 moth->AddNode(vcenteral, 1, 0);
341 for(i = 0; i < kNSectorsTotal; i++) {
342 shiftX = -radiusSector * TMath::Sin(angle/fgkRadian);
343 shiftY = radiusSector * TMath::Cos(angle/fgkRadian);
344 //cout << "ANGLE = " << angle << endl;
345 shiftX += 0.1094 * TMath::Cos((angle + 196.)/fgkRadian);
346 shiftY += 0.1094 * TMath::Sin((angle + 196.)/fgkRadian);
349 //shiftX -= 0.11 * TMath::Cos(angle/fgkRadian); // add by Alberto
350 //shiftY -= 0.11 * TMath::Sin(angle/fgkRadian); // don't ask me where that 0.11 comes from!
351 secRot->SetDx(shiftX);
352 secRot->SetDy(shiftY);
353 comrot = new TGeoCombiTrans(*secRot);
354 vcenteral->AddNode(vCarbonFiberSector[i],i+1,comrot);
355 for(j=0;j<2;j++)for(k=0;k<6;k++) // Transform Tube ends for each sector
356 comrot->LocalToMaster(tub[j][k],fTubeEndSector[i][j][k]);
358 AliInfo(Form("i=%d angle=%g angle[rad]=%g radiusSector=%g "
359 "x=%g y=%g \n",i, angle, angle/fgkRadian,
360 radiusSector, shiftX, shiftY));
361 } // end if GetDebug(5)
362 angle += kSectorRelativeAngle;
363 secRot->RotateZ(kSectorRelativeAngle);
365 if(GetDebug(3)) moth->PrintNodes();
369 CreateServices(moth);
371 //______________________________________________________________________
372 void AliITSv11GeometrySPD::CarbonFiberSector(TGeoVolume *moth, Int_t sect,
373 Double_t &xAAtubeCenter0, Double_t &yAAtubeCenter0, TGeoManager *mgr)
375 // The method has been modified in order to build a support sector
376 // whose shape is dependent on the sector number; the aim is to get
377 // as close as possible to the shape inferred from alignment
378 // and avoid as much as possible overlaps generated by alignment.
380 // Define the detail SPD Carbon fiber support Sector geometry.
381 // Based on the drawings:
383 http:///QA-construzione-profilo-modulo.ps
385 // - ALICE-Pixel "Costruzione Profilo Modulo" (march 25 2004)
386 // - ALICE-SUPPORTO "Costruzione Profilo Modulo"
388 // Define outside radii as negative, where "outside" means that the
389 // center of the arc is outside of the object (feb 16 2004).
391 // Arguments [the one passed by ref contain output values]:
393 // TGeoVolume *moth the voulme which will contain this object
394 // TGeoManager *mgr TGeo builder defauls is gGeoManager
396 // Double_t &xAAtubeCenter0 (by ref) x location of the outer surface
397 // of the cooling tube center for tube 0.
398 // Double_t &yAAtubeCenter0 (by ref) y location of the outer surface
399 // of the cooling tube center for tube 0.
403 // Int the two variables passed by reference values will be stored
404 // which will then be used to correctly locate this sector.
405 // The information used for this is the distance between the
406 // center of the #0 detector and the beam pipe.
407 // Measurements are taken at cross section A-A.
410 //TGeoMedium *medSPDfs = 0;//SPD support cone inserto stesalite 4411w
411 //TGeoMedium *medSPDfo = 0;//SPD support cone foam, Rohacell 50A.
412 //TGeoMedium *medSPDal = 0;//SPD support cone SDD mounting bracket Al
413 TGeoMedium *medSPDcf = GetMedium("SPD C (M55J)$", mgr);
414 TGeoMedium *medSPDss = GetMedium("INOX$", mgr);
415 TGeoMedium *medSPDair = GetMedium("AIR$", mgr);
416 TGeoMedium *medSPDcoolfl = GetMedium("Freon$", mgr); //ITSspdCoolingFluid
418 const Double_t ksecDz = 0.5 * 500.0 * fgkmm;
419 //const Double_t ksecLen = 30.0 * fgkmm;
420 const Double_t ksecCthick = 0.2 * fgkmm;
421 const Double_t ksecDipLength = 3.2 * fgkmm;
422 const Double_t ksecDipRadii = 0.4 * fgkmm;
423 //const Double_t ksecCoolingTubeExtraDepth = 0.86 * fgkmm;
425 // The following positions ('ksecX#' and 'ksecY#') and radii ('ksecR#')
426 // are the centers and radii of curvature of all the rounded corners
427 // between the straight borders of the SPD sector shape.
428 // To draw this SPD sector, the following steps are followed:
429 // 1) the (ksecX, ksecY) points are plotted
430 // and circles of the specified radii are drawn around them.
431 // 2) each pair of consecutive circles is connected by a line
432 // tangent to them, in accordance with the radii being "internal"
433 // or "external" with respect to the closed shape which describes
434 // the sector itself.
435 // The resulting connected shape is the section
436 // of the SPD sector surface in the transverse plane (XY).
438 const Double_t ksecX0 = -10.725 * fgkmm;
439 const Double_t ksecY0 = -14.853 * fgkmm;
440 const Double_t ksecR0 = -0.8 * fgkmm; // external
442 const Double_t ksecR1 = +0.6 * fgkmm;
443 const Double_t ksecR2 = +0.6 * fgkmm;
444 const Double_t ksecR3 = -0.6 * fgkmm;
445 const Double_t ksecR4 = +0.8 * fgkmm;
446 const Double_t ksecR5 = +0.8 * fgkmm;
447 const Double_t ksecR6 = +0.6 * fgkmm;
448 const Double_t ksecR7 = -0.6 * fgkmm;
449 const Double_t ksecR8 = +0.6 * fgkmm;
450 const Double_t ksecR9 = -0.6 * fgkmm;
451 const Double_t ksecR10 = +0.6 * fgkmm;
452 const Double_t ksecR11 = -0.6 * fgkmm;
453 const Double_t ksecR12 = +0.85 * fgkmm;
456 // 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};
457 // 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};
458 // 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};
459 // 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};
460 // 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};
461 // 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};
462 // 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};
463 // 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};
464 // 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};
465 // 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};
466 // 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};
467 // 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};
468 // 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};
469 // 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};
470 // 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};
471 // 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};
472 // 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};
473 // 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};
474 // 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};
475 // 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};
476 // 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};
477 // 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};
478 // 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};
479 // 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};
482 // MODIFIED GEOMETRY according with partial alignment of Staves relative to Sectors
483 // last numbers: 2010/06/11 (ML)
485 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};
486 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};
487 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};
488 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};
489 // 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};
490 // 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};
491 // 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};
492 // 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};
493 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};
494 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};
495 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};
496 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};
497 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};
498 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};
499 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};
500 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};
501 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};
502 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};
503 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};
504 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};
505 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};
506 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};
507 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};
508 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};
509 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};
510 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};
511 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};
512 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};
515 const Double_t ksecR13 = -0.8 * fgkmm; // external
516 const Double_t ksecAngleSide13 = 36.0 * fgkDegree;
518 const Int_t ksecNRadii = 20;
519 const Int_t ksecNPointsPerRadii = 4;
520 const Int_t ksecNCoolingTubeDips = 6;
522 // Since the rounded parts are approximated by a regular polygon
523 // and a cooling tube of the propper diameter must fit, a scaling factor
524 // increases the size of the polygon for the tube to fit.
525 //const Double_t ksecRCoolScale = 1./TMath::Cos(TMath::Pi()/
526 // (Double_t)ksecNPointsPerRadii);
527 const Double_t ksecZEndLen = 30.000 * fgkmm;
528 //const Double_t ksecZFlangLen = 45.000 * fgkmm;
529 const Double_t ksecTl = 0.860 * fgkmm;
530 const Double_t ksecCthick2 = 0.600 * fgkmm;
531 //const Double_t ksecCthick3 = 1.80 * fgkmm;
532 //const Double_t ksecSidelen = 22.0 * fgkmm;
533 //const Double_t ksecSideD5 = 3.679 * fgkmm;
534 //const Double_t ksecSideD12 = 7.066 * fgkmm;
535 const Double_t ksecRCoolOut = 2.400 * fgkmm;
536 const Double_t ksecRCoolIn = 2.000 * fgkmm;
537 const Double_t ksecDl1 = 5.900 * fgkmm;
538 const Double_t ksecDl2 = 8.035 * fgkmm;
539 const Double_t ksecDl3 = 4.553 * fgkmm;
540 const Double_t ksecDl4 = 6.978 * fgkmm;
541 const Double_t ksecDl5 = 6.978 * fgkmm;
542 const Double_t ksecDl6 = 6.978 * fgkmm;
543 const Double_t ksecCoolTubeThick = 0.04 * fgkmm;
544 const Double_t ksecCoolTubeROuter = 2.6 * fgkmm;
545 const Double_t ksecCoolTubeFlatX = 3.696 * fgkmm;
546 const Double_t ksecCoolTubeFlatY = 0.68 * fgkmm;
547 //const Double_t ksecBeamX0 = 0.0 * fgkmm; // guess
548 //const Double_t ksecBeamY0 = (15.223 + 40.) * fgkmm; // guess
550 // redefine some of the points already defined above
551 // in the format of arrays (???)
552 const Int_t ksecNPoints = (ksecNPointsPerRadii + 1) * ksecNRadii + 8;
553 Double_t secX[ksecNRadii] = {
554 ksecX0, ksecX1[sect], -1000.0,
555 ksecX2[sect], ksecX3[sect], -1000.0,
556 ksecX4[sect], ksecX5[sect], -1000.0,
557 ksecX6[sect], ksecX7[sect], -1000.0,
558 ksecX8[sect], ksecX9[sect], -1000.0,
559 ksecX10[sect], ksecX11[sect], -1000.0,
560 ksecX12[sect], -1000.0
562 Double_t secY[ksecNRadii] = {
563 ksecY0, ksecY1[sect], -1000.0,
564 ksecY2[sect], ksecY3[sect], -1000.0,
565 ksecY4[sect], ksecY5[sect], -1000.0,
566 ksecY6[sect], ksecY7[sect], -1000.0,
567 ksecY8[sect], ksecY9[sect], -1000.0,
568 ksecY10[sect], ksecY11[sect], -1000.0,
569 ksecY12[sect], -1000.0
571 Double_t secR[ksecNRadii] = {
572 ksecR0, ksecR1, -.5 * ksecDipLength - ksecDipRadii,
573 ksecR2, ksecR3, -.5 * ksecDipLength - ksecDipRadii,
574 ksecR4, ksecR5, -.5 * ksecDipLength - ksecDipRadii,
575 ksecR6, ksecR7, -.5 * ksecDipLength - ksecDipRadii,
576 ksecR8, ksecR9, -.5 * ksecDipLength - ksecDipRadii,
577 ksecR10, ksecR11, -.5 * ksecDipLength - ksecDipRadii,
581 Double_t secX2[ksecNRadii];
582 Double_t secY2[ksecNRadii];
583 Double_t secR2[ksecNRadii] = {
584 ksecR0, ksecR1, ksecRCoolOut,
585 ksecR2, ksecR3, ksecRCoolOut,
586 ksecR4, ksecR5, ksecRCoolOut,
587 ksecR6, ksecR7, ksecRCoolOut,
588 ksecR8, ksecR9, ksecRCoolOut,
589 ksecR10, ksecR11, ksecRCoolOut,
592 Double_t secDip2[ksecNCoolingTubeDips] = {
593 ksecDl1, ksecDl2, ksecDl3,
594 ksecDl4, ksecDl5, ksecDl6
596 Double_t secX3[ksecNRadii];
597 Double_t secY3[ksecNRadii];
598 const Int_t ksecDipIndex[ksecNCoolingTubeDips] = {2, 5, 8, 11, 14, 17};
599 Double_t secAngleStart[ksecNRadii];
600 Double_t secAngleEnd[ksecNRadii];
601 for(Int_t i = 0; i < ksecNRadii; i++)secAngleEnd[i] = 0.;
602 Double_t secAngleStart2[ksecNRadii];
603 Double_t secAngleEnd2[ksecNRadii];
604 Double_t secAngleTurbo[ksecNCoolingTubeDips] = {0., 0., 0., 0., 0., 0.0};
605 //Double_t secAngleStart3[ksecNRadii];
606 //Double_t secAngleEnd3[ksecNRadii];
607 Double_t xpp[ksecNPoints], ypp[ksecNPoints];
608 Double_t xpp2[ksecNPoints], ypp2[ksecNPoints];
609 Double_t *xp[ksecNRadii], *xp2[ksecNRadii];
610 Double_t *yp[ksecNRadii], *yp2[ksecNRadii];
611 TGeoXtru *sA0, *sA1, *sB0, *sB1,*sB2;
613 TGeoEltu *sTA0, *sTA1;
614 TGeoTube *sTB0, *sTB1; //,*sM0;
616 TGeoTranslation *trans;
617 TGeoCombiTrans *rotrans;
618 Double_t t, t0, t1, a, b, x0, y0,z0, x1, y1;
623 AliError("Container volume (argument) is NULL");
626 for(i = 0; i < ksecNRadii; i++) {
627 xp[i] = &(xpp[i*(ksecNPointsPerRadii+1)]);
628 yp[i] = &(ypp[i*(ksecNPointsPerRadii+1)]);
629 xp2[i] = &(xpp2[i*(ksecNPointsPerRadii+1)]);
630 yp2[i] = &(ypp2[i*(ksecNPointsPerRadii+1)]);
637 // find starting and ending angles for all but cooling tube sections
638 secAngleStart[0] = 0.5 * ksecAngleSide13;
639 for(i = 0; i < ksecNRadii - 2; i++) {
641 for(j=0;j<ksecNCoolingTubeDips;j++) tst = (tst||i==ksecDipIndex[j]);
644 for(j=0;j<ksecNCoolingTubeDips;j++) tst =(tst||(i+1)==ksecDipIndex[j]);
645 if (tst) j = i+2; else j = i+1;
646 AnglesForRoundedCorners(secX[i],secY[i],secR[i],secX[j],secY[j],
649 secAngleStart[j] = t1;
650 if(secR[i] > 0.0 && secR[j] > 0.0) {
651 if(secAngleStart[i] > secAngleEnd[i]) secAngleEnd[i] += 360.0;
652 } // end if(secR[i]>0.0 && secR[j]>0.0)
653 secAngleStart2[i] = secAngleStart[i];
654 secAngleEnd2[i] = secAngleEnd[i];
656 secAngleEnd[ksecNRadii-2] = secAngleStart[ksecNRadii-2] +
657 (secAngleEnd[ksecNRadii-5] - secAngleStart[ksecNRadii-5]);
658 if (secAngleEnd[ksecNRadii-2] < 0.0) secAngleEnd[ksecNRadii-2] += 360.0;
659 secAngleStart[ksecNRadii-1] = secAngleEnd[ksecNRadii-2] - 180.0;
660 secAngleEnd[ksecNRadii-1] = secAngleStart[0];
661 secAngleStart2[ksecNRadii-2] = secAngleStart[ksecNRadii-2];
662 secAngleEnd2[ksecNRadii-2] = secAngleEnd[ksecNRadii-2];
663 secAngleStart2[ksecNRadii-1] = secAngleStart[ksecNRadii-1];
664 secAngleEnd2[ksecNRadii-1] = secAngleEnd[ksecNRadii-1];
666 // find location of circle last rounded corner.
669 t0 = TanD(secAngleStart[i]-90.);
670 t1 = TanD(secAngleEnd[j]-90.);
671 t = secY[i] - secY[j];
672 // NOTE: secR[i=0] < 0; secR[j=18] > 0; and secR[j+1=19] < 0
673 t += (-secR[i]+secR[j+1]) * SinD(secAngleStart[i]);
674 t -= (secR[j]-secR[j+1]) * SinD(secAngleEnd[j]);
675 t += t1 * secX[j] - t0*secX[i];
676 t += t1 * (secR[j] - secR[j+1]) * CosD(secAngleEnd[j]);
677 t -= t0 * (-secR[i]+secR[j+1]) * CosD(secAngleStart[i]);
678 secX[ksecNRadii-1] = t / (t1-t0);
679 secY[ksecNRadii-1] = TanD(90.0+0.5*ksecAngleSide13)*
680 (secX[ksecNRadii-1]-secX[0])+secY[0];
681 secX2[ksecNRadii-1] = secX[ksecNRadii-1];
682 secY2[ksecNRadii-1] = secY[ksecNRadii-1];
683 secX3[ksecNRadii-1] = secX[ksecNRadii-1];
684 secY3[ksecNRadii-1] = secY[ksecNRadii-1];
686 // find location of cooling tube centers
687 for(i = 0; i < ksecNCoolingTubeDips; i++) {
689 x0 = secX[j-1] + TMath::Abs(secR[j-1]) * CosD(secAngleEnd[j-1]);
690 y0 = secY[j-1] + TMath::Abs(secR[j-1]) * SinD(secAngleEnd[j-1]);
691 x1 = secX[j+1] + TMath::Abs(secR[j+1]) * CosD(secAngleStart[j+1]);
692 y1 = secY[j+1] + TMath::Abs(secR[j+1]) * SinD(secAngleStart[j+1]);
693 t0 = TMath::Sqrt((x0-x1)*(x0-x1)+(y0-y1)*(y0-y1));
698 // get location of tube center->Surface for locating
699 // this sector around the beam pipe.
700 // This needs to be double checked, but I need my notes for that.
702 xAAtubeCenter0 = x0 + (x1 - x0) * t * 0.5;
703 yAAtubeCenter0 = y0 + (y1 - y0) * t * 0.5;
705 if(a + b*(a - x0) / (b - y0) > 0.0) {
706 secX[j] = a + TMath::Abs(y1-y0) * 2.0 * ksecDipRadii/t0;
707 secY[j] = b - TMath::Sign(2.0*ksecDipRadii,y1-y0) * (x1-x0)/t0;
708 secX2[j] = a + TMath::Abs(y1-y0) * ksecTl/t0;
709 secY2[j] = b - TMath::Sign(ksecTl,y1-y0) * (x1-x0) / t0;
710 secX3[j] = a + TMath::Abs(y1-y0) *
711 (2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY)/t0;
712 secY3[j] = b - TMath::Sign(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY,
715 secX[j] = a - TMath::Abs(y1-y0)*2.0*ksecDipRadii/t0;
716 secY[j] = b + TMath::Sign(2.0*ksecDipRadii,y1-y0)*(x1-x0)/t0;
717 secX2[j] = a - TMath::Abs(y1-y0)*ksecTl/t0;
718 secY2[j] = b + TMath::Sign(ksecTl,y1-y0)*(x1-x0)/t0;
719 secX3[j] = a - TMath::Abs(y1-y0)*(2.0*ksecDipRadii-0.5*
720 ksecCoolTubeFlatY)/t0;
721 secY3[j] = b + TMath::Sign(2.0*ksecDipRadii-0.5*ksecCoolTubeFlatY,
723 } // end if(a+b*(a-x0)/(b-y0)>0.0)
725 // Set up Start and End angles to correspond to start/end of dips.
726 t1 = (secDip2[i]-TMath::Abs(secR[j])) / t0;
727 secAngleStart[j] =TMath::RadToDeg()*TMath::ATan2(y0+(y1-y0)*t1-secY[j],
728 x0+(x1-x0)*t1-secX[j]);
729 if (secAngleStart[j]<0.0) secAngleStart[j] += 360.0;
730 secAngleStart2[j] = secAngleStart[j];
731 t1 = (secDip2[i]+TMath::Abs(secR[j]))/t0;
732 secAngleEnd[j] = TMath::RadToDeg()*TMath::ATan2(y0+(y1-y0)*t1-secY[j],
733 x0+(x1-x0)*t1-secX[j]);
734 if (secAngleEnd[j]<0.0) secAngleEnd[j] += 360.0;
735 secAngleEnd2[j] = secAngleEnd[j];
736 if (secAngleEnd[j]>secAngleStart[j]) secAngleEnd[j] -= 360.0;
737 secR[j] = TMath::Sqrt(secR[j]*secR[j]+4.0*ksecDipRadii*ksecDipRadii);
741 secAngleStart2[8] -= 360.;
742 secAngleStart2[11] -= 360.;
744 SPDsectorShape(ksecNRadii, secX, secY, secR, secAngleStart, secAngleEnd,
745 ksecNPointsPerRadii, m, xp, yp);
747 // Fix up dips to be square.
748 for(i = 0; i < ksecNCoolingTubeDips; i++) {
750 t = 0.5*ksecDipLength+ksecDipRadii;
751 t0 = TMath::RadToDeg()*TMath::ATan(2.0*ksecDipRadii/t);
752 t1 = secAngleEnd[j] + t0;
753 t0 = secAngleStart[j] - t0;
754 x0 = xp[j][1] = secX[j] + t*CosD(t0);
755 y0 = yp[j][1] = secY[j] + t*SinD(t0);
756 x1 = xp[j][ksecNPointsPerRadii-1] = secX[j] + t*CosD(t1);
757 y1 = yp[j][ksecNPointsPerRadii-1] = secY[j] + t*SinD(t1);
758 t0 = 1./((Double_t)(ksecNPointsPerRadii-2));
759 for(k = 2; k < ksecNPointsPerRadii - 1; k++) {
760 // extra points spread them out.
761 t = ((Double_t)(k-1)) * t0;
762 xp[j][k] = x0+(x1-x0) * t;
763 yp[j][k] = y0+(y1-y0) * t;
765 secAngleTurbo[i] = -TMath::RadToDeg() * TMath::ATan2(y1-y0, x1-x0);
768 Form("i=%d -- angle=%f -- x0,y0=(%f, %f) -- x1,y1=(%f, %f)",
769 i, secAngleTurbo[i], x0, y0, x1, y1));
770 } // end if GetDebug(3)
772 sA0 = new TGeoXtru(2);
773 sA0->SetName("ITS SPD Carbon fiber support Sector A0");
774 sA0->DefinePolygon(m, xpp, ypp);
775 sA0->DefineSection(0, -ksecDz);
776 sA0->DefineSection(1, ksecDz);
778 // store the edges of each XY segment which defines
779 // one of the plane zones where staves will have to be placed
780 fSPDsectorX0.Set(ksecNCoolingTubeDips);
781 fSPDsectorY0.Set(ksecNCoolingTubeDips);
782 fSPDsectorX1.Set(ksecNCoolingTubeDips);
783 fSPDsectorY1.Set(ksecNCoolingTubeDips);
785 for(i = 0; i < ksecNCoolingTubeDips; i++) {
786 // Find index in xpp[] and ypp[] corresponding to where the
787 // SPD ladders are to be attached. Order them according to
788 // the ALICE numbering schema. Using array of indexes (+-1 for
789 // cooling tubes. For any "bend/dip/edge, there are
790 // ksecNPointsPerRadii+1 points involved.
792 else if (i == 1) j = 0;
794 ixy0 = (ksecDipIndex[j]-1)*(ksecNPointsPerRadii+1)+
795 (ksecNPointsPerRadii);
796 ixy1 = (ksecDipIndex[j]+1) * (ksecNPointsPerRadii+1);
797 fSPDsectorX0[i] = sA0->GetX(ixy0);
798 fSPDsectorY0[i] = sA0->GetY(ixy0);
799 fSPDsectorX1[i] = sA0->GetX(ixy1);
800 fSPDsectorY1[i] = sA0->GetY(ixy1);
803 //printf("SectorA#%d ",0);
804 InsidePoint(xpp[m-1],ypp[m-1],xpp[0],ypp[0],xpp[1],ypp[1],ksecCthick,
806 for(i = 1; i < m - 1; i++) {
807 j = i / (ksecNPointsPerRadii+1);
808 //printf("SectorA#%d ",i);
809 InsidePoint(xpp[i-1],ypp[i-1],xpp[i],ypp[i],xpp[i+1],ypp[i+1],
810 ksecCthick,xpp2[i],ypp2[i]);
812 //printf("SectorA#%d ",m);
813 InsidePoint(xpp[m-2],ypp[m-2],xpp[m-1],ypp[m-1],xpp[0],ypp[0],
814 ksecCthick,xpp2[m-1],ypp2[m-1]);
815 // Fix center value of cooling tube dip and
816 // find location of cooling tube centers
817 for(i = 0; i < ksecNCoolingTubeDips; i++) {
821 x1 = xp2[j][ksecNPointsPerRadii-1];
822 y1 = yp2[j][ksecNPointsPerRadii-1];
823 t0 = TMath::Sqrt((x0-x1)*(x0-x1)+(y0-y1)*(y0-y1));
825 for(k = 2; k < ksecNPointsPerRadii - 1; k++) {
826 // extra points spread them out.
827 t = ((Double_t)(k-1)) * t0;
828 xp2[j][k] = x0+(x1-x0) * t;
829 yp2[j][k] = y0+(y1-y0) * t;
832 sA1 = new TGeoXtru(2);
833 sA1->SetName("ITS SPD Carbon fiber support Sector Air A1");
834 sA1->DefinePolygon(m, xpp2, ypp2);
835 sA1->DefineSection(0, -ksecDz);
836 sA1->DefineSection(1, ksecDz);
838 // Error in TGeoEltu. Semi-axis X must be < Semi-axis Y (?).
839 sTA0 = new TGeoEltu("ITS SPD Cooling Tube TA0", 0.5 * ksecCoolTubeFlatY,
840 0.5 * ksecCoolTubeFlatX, ksecDz);
841 sTA1 = new TGeoEltu("ITS SPD Cooling Tube coolant TA1",
842 sTA0->GetA() - ksecCoolTubeThick,
843 sTA0->GetB()-ksecCoolTubeThick,ksecDz);
844 SPDsectorShape(ksecNRadii,secX2,secY2,secR2,secAngleStart2,secAngleEnd2,
845 ksecNPointsPerRadii, m, xp, yp);
846 sB0 = new TGeoXtru(2);
847 sB0->SetName("ITS SPD Carbon fiber support Sector End B0");
848 sB0->DefinePolygon(m, xpp, ypp);
849 sB0->DefineSection(0, ksecDz);
850 sB0->DefineSection(1, ksecDz + ksecZEndLen);
852 //printf("SectorB#%d ",0);
853 // Points around the most sharpened tips have to be avoided - M.S. 24 feb 09
854 const Int_t nSpecialPoints = 5;
855 const Int_t kSpecialPoints[nSpecialPoints] = {7, 17, 47, 62, 77};
857 InsidePoint(xpp[m-1],ypp[m-1],xpp[0],ypp[0],xpp[1],ypp[1],
858 ksecCthick2,xpp2[i2],ypp2[i2]);
859 for(i = 1; i < m - 1; i++) {
861 for(k = 0; k < ksecNCoolingTubeDips; k++)
862 if((i/(ksecNPointsPerRadii+1))==ksecDipIndex[k])
863 if(!(ksecDipIndex[k]*(ksecNPointsPerRadii+1) == i ||
864 ksecDipIndex[k]*(ksecNPointsPerRadii+1) +
865 ksecNPointsPerRadii == i))
866 t = ksecRCoolOut-ksecRCoolIn;
867 //printf("SectorB#%d ",i);
868 Bool_t useThisPoint = kTRUE;
869 for(Int_t ii = 0; ii < nSpecialPoints; ii++)
870 if ( (i == kSpecialPoints[ii] - 1) ||
871 (i == kSpecialPoints[ii] + 1) ) useThisPoint = kFALSE;
874 InsidePoint(xpp[i-1],ypp[i-1],xpp[i],ypp[i],xpp[i+1],ypp[i+1],t,
878 //printf("SectorB#%d ",m);
880 InsidePoint(xpp[m-2],ypp[m-2],xpp[m-1],ypp[m-1],xpp[0],ypp[0],
881 ksecCthick2,xpp2[i2],ypp2[i2]);
882 sB1 = new TGeoXtru(2);
883 sB1->SetName("ITS SPD Carbon fiber support Sector Air End B1");
884 sB1->DefinePolygon(i2+1, xpp2, ypp2);
885 sB1->DefineSection(0,sB0->GetZ(0));
886 sB1->DefineSection(1,sB0->GetZ(1)-ksecCthick2);
887 const Double_t kspdEndHoleRadius1=5.698*fgkmm;
888 const Double_t kspdEndHoleRadius2=2.336*fgkmm;
889 const Double_t kspdEndHoleDisplacement=6.29*fgkmm;
892 t= ((Double_t)i)/((Double_t)(k));
893 if(!CFHolePoints(t,kspdEndHoleRadius1,kspdEndHoleRadius2,
894 kspdEndHoleDisplacement,xpp2[i],ypp2[i])){
895 Warning("CarbonFiberSector","CFHolePoints failed "
896 "i=%d m=%d k=%d t=%e",i,m,k,t);
898 // simitry in each quadrant.
899 xpp2[2*k-i] = -xpp2[i];
900 ypp2[2*k-i] = ypp2[i];
901 xpp2[2*k+i] = -xpp2[i];
902 ypp2[2*k+i] = -ypp2[i];
903 xpp2[4*k-i] = xpp2[i];
904 ypp2[4*k-i] = -ypp2[i];
906 //xpp2[m-1] = xpp2[0]; // begining point in
907 //ypp2[m-1] = ypp2[0]; // comment with end point
908 sB2 = new TGeoXtru(2);
909 sB2->SetName("ITS SPD Hole in Carbon fiber support End plate");
910 sB2->DefinePolygon(4*k, xpp2, ypp2);
911 sB2->DefineSection(0,sB1->GetZ(1));
912 sB2->DefineSection(1,sB0->GetZ(1));
913 // SPD sector mount blocks
914 const Double_t kMountBlock[3] = {0.5*(1.8-0.2)*fgkmm,0.5*22.0*fgkmm,
916 sB3 = new TGeoBBox((Double_t*)kMountBlock);
917 // SPD sector cooling tubes
918 sTB0 = new TGeoTube("ITS SPD Cooling Tube End TB0", 0.0,
919 0.5*ksecCoolTubeROuter,0.5*(sB1->GetZ(1)-sB1->GetZ(0)));
920 sTB1 = new TGeoTube("ITS SPD Cooling Tube End coolant TB0", 0.0,
921 sTB0->GetRmax() - ksecCoolTubeThick,sTB0->GetDz());
924 if(medSPDcf) medSPDcf->Dump(); else AliInfo("medSPDcf = 0");
925 if(medSPDss) medSPDss->Dump(); else AliInfo("medSPDss = 0");
926 if(medSPDair) medSPDair->Dump(); else AliInfo("medSPDAir = 0");
927 if(medSPDcoolfl) medSPDcoolfl->Dump();else AliInfo("medSPDcoolfl = 0");
933 } // end if(GetDebug(3))
935 // create the assembly of the support and place staves on it
936 TGeoVolumeAssembly *vM0 = new TGeoVolumeAssembly(
937 "ITSSPDSensitiveVirtualvolumeM0");
939 // create other volumes with some graphical settings
940 TGeoVolume *vA0 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorA0",
942 vA0->SetVisibility(kTRUE);
943 vA0->SetLineColor(4); // Blue
944 vA0->SetLineWidth(1);
945 vA0->SetFillColor(vA0->GetLineColor());
946 vA0->SetFillStyle(4010); // 10% transparent
947 TGeoVolume *vA1 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorAirA1",
949 vA1->SetVisibility(kTRUE);
950 vA1->SetLineColor(7); // light Blue
951 vA1->SetLineWidth(1);
952 vA1->SetFillColor(vA1->GetLineColor());
953 vA1->SetFillStyle(4090); // 90% transparent
954 TGeoVolume *vTA0 = new TGeoVolume("ITSSPDCoolingTubeTA0", sTA0, medSPDss);
955 vTA0->SetVisibility(kTRUE);
956 vTA0->SetLineColor(15); // gray
957 vTA0->SetLineWidth(1);
958 vTA0->SetFillColor(vTA0->GetLineColor());
959 vTA0->SetFillStyle(4000); // 0% transparent
960 TGeoVolume *vTA1 = new TGeoVolume("ITSSPDCoolingTubeFluidTA1",
962 vTA1->SetVisibility(kTRUE);
963 vTA1->SetLineColor(6); // Purple
964 vTA1->SetLineWidth(1);
965 vTA1->SetFillColor(vTA1->GetLineColor());
966 vTA1->SetFillStyle(4000); // 0% transparent
967 TGeoVolume *vB0 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndB0",
969 vB0->SetVisibility(kTRUE);
970 vB0->SetLineColor(1); // Black
971 vB0->SetLineWidth(1);
972 vB0->SetFillColor(vB0->GetLineColor());
973 vB0->SetFillStyle(4000); // 0% transparent
974 TGeoVolume *vB1 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndAirB1",
976 vB1->SetVisibility(kTRUE);
977 vB1->SetLineColor(0); // white
978 vB1->SetLineWidth(1);
979 vB1->SetFillColor(vB1->GetLineColor());
980 vB1->SetFillStyle(4100); // 100% transparent
981 TGeoVolume *vB2 = new TGeoVolume("ITSSPDCarbonFiberSupportSectorEndAirB2",
983 vB2->SetVisibility(kTRUE);
984 vB2->SetLineColor(0); // white
985 vB2->SetLineWidth(1);
986 vB2->SetFillColor(vB2->GetLineColor());
987 vB2->SetFillStyle(4100); // 100% transparent
988 TGeoVolume *vB3 = new TGeoVolume(
989 "ITSSPDCarbonFiberSupportSectorMountBlockB3",sB3, medSPDcf);
990 vB3->SetVisibility(kTRUE);
991 vB3->SetLineColor(1); // Black
992 vB3->SetLineWidth(1);
993 vB3->SetFillColor(vB3->GetLineColor());
994 vB3->SetFillStyle(4000); // 0% transparent
995 TGeoVolume *vTB0 = new TGeoVolume("ITSSPDCoolingTubeEndTB0",sTB0,medSPDss);
996 vTB0->SetVisibility(kTRUE);
997 vTB0->SetLineColor(15); // gray
998 vTB0->SetLineWidth(1);
999 vTB0->SetFillColor(vTB0->GetLineColor());
1000 vTB0->SetFillStyle(4000); // 0% transparent
1001 TGeoVolume *vTB1 = new TGeoVolume("ITSSPDCoolingTubeEndFluidTB1",sTB1,
1003 vTB1->SetVisibility(kTRUE);
1004 vTB1->SetLineColor(7); // light blue
1005 vTB1->SetLineWidth(1);
1006 vTB1->SetFillColor(vTB1->GetLineColor());
1007 vTB1->SetFillStyle(4050); // 0% transparent
1009 // add volumes to mother container passed as argument of this method
1010 moth->AddNode(vM0,1,0); // Add virtual volume to mother
1011 vA0->AddNode(vA1,1,0); // Put air inside carbon fiber.
1012 vB0->AddNode(vB1,1,0); // Put air inside carbon fiber ends.
1013 vB0->AddNode(vB2,1,0); // Put air wholes inside carbon fiber ends
1014 vTA0->AddNode(vTA1,1,0); // Put cooling liquid indide tube middel.
1015 vTB0->AddNode(vTB1,1,0); // Put cooling liquid inside tube end.
1016 Double_t tubeEndLocal[3]={0.0,0.0,sTA0->GetDz()};
1017 for(i = 0; i < ksecNCoolingTubeDips; i++) {
1018 x0 = secX3[ksecDipIndex[i]];
1019 y0 = secY3[ksecDipIndex[i]];
1020 t = 90.0 - secAngleTurbo[i];
1021 trans = new TGeoTranslation("",x0,y0,0.5*(sB1->GetZ(0)+sB1->GetZ(1)));
1022 vB1->AddNode(vTB0, i+1, trans);
1023 // Find location of tube ends for later use.
1024 trans->LocalToMaster(tubeEndLocal,fTubeEndSector[0][0][i]);
1025 rot = new TGeoRotation("", 0.0, 0.0, t);
1026 rotrans = new TGeoCombiTrans("", x0, y0, 0.0, rot);
1027 vM0->AddNode(vTA0, i+1, rotrans);
1029 vM0->AddNode(vA0, 1, 0);
1030 vM0->AddNode(vB0, 1, 0);
1032 rot = new TGeoRotation("", 90., 0., 90., 90., 180., 0.);
1033 vM0->AddNode(vB0,2,rot);
1034 // Find location of tube ends for later use.
1035 for(i=0;i<ksecNCoolingTubeDips;i++) rot->LocalToMaster(
1036 fTubeEndSector[0][0][i],fTubeEndSector[0][1][i]);
1038 t = -TMath::RadToDeg()*TMath::ATan2(
1039 sB0->GetX(0)-sB0->GetX(sB0->GetNvert()-1),
1040 sB0->GetY(0)-sB0->GetY(sB0->GetNvert()-1));
1041 rot = new TGeoRotation("",t,0.0,0.0);// z axis rotation
1042 x0 = 0.5*(sB0->GetX(0)+sB0->GetX(sB0->GetNvert()-1))+
1043 sB3->GetDX()*TMath::Cos(t*TMath::DegToRad());
1044 y0 = 0.5*(sB0->GetY(0)+sB0->GetY(sB0->GetNvert()-1))+
1045 sB3->GetDX()*TMath::Sin(t*TMath::DegToRad());
1046 z0 = sB0->GetZ(0)+sB3->GetDZ();
1047 rotrans = new TGeoCombiTrans("",x0,y0,z0,rot);
1048 vM0->AddNode(vB3,1,rotrans); // Put Mounting bracket on sector
1049 rotrans = new TGeoCombiTrans("",x0,y0,-z0,rot);
1050 vM0->AddNode(vB3,2,rotrans); // Put Mounting bracket on sector
1052 rot = new TGeoRotation("",t,0.0,0.0); // z axis rotation
1054 x0 = -0.5*(sB0->GetX(0)+sB0->GetX(sB0->GetNvert()-1))-3.5*
1055 sB3->GetDX()*TMath::Cos(t*TMath::DegToRad());
1056 y0 = 0.5*(sB0->GetY(0)+sB0->GetY(sB0->GetNvert()-1))-3.5*
1057 sB3->GetDX()*TMath::Sin(t*TMath::DegToRad());
1058 rotrans = new TGeoCombiTrans("",1.01*x0,y0,z0,rot);
1059 vM0->AddNode(vB3,3,rotrans); // Put Mounting bracket on sector
1060 rotrans = new TGeoCombiTrans("",1.01*x0,y0,-z0,rot);
1061 vM0->AddNode(vB3,4,rotrans); // Put Mounting bracket on sector
1074 } // end if(GetDebug(3))
1076 //______________________________________________________________________
1077 Bool_t AliITSv11GeometrySPD::CFHolePoints(Double_t s,Double_t r1,
1078 Double_t r2,Double_t l,Double_t &x,Double_t &y) const
1081 // Step along arck a distancs ds and compute boundry of
1082 // two holes (radius r1 and r2) a distance l apart (along
1085 // Double_t s fractional Distance along arcs [0-1]
1086 // where 0-> alpha=beta=0, 1-> alpha=90 degrees.
1087 // Double_t r1 radius at center circle
1088 // Double_t r2 radius of displaced circle
1089 // Double_t l Distance displaced circle is displaces (x-axis)
1091 // Double_t x x coordinate along double circle.
1092 // Double_t y y coordinate along double circle.
1094 // logical, kFALSE if an error
1096 Double_t alpha,beta;
1097 Double_t ac,bc,scb,sca,t,alphac,betac; // at intersection of two circles
1100 ac = r1*r1-l*l-r2*r2;
1102 if(bc==0.0) {printf("bc=0 l=%e r2=%e\n",l,r2);return kFALSE;}
1103 betac = TMath::ACos(ac/bc);
1104 alphac = TMath::Sqrt((bc-ac)*(bc+ac))/(2.*l*r1);
1107 t = r1*0.5*TMath::Pi() - sca + scb;
1110 x = r2*TMath::Cos(beta) + l;
1111 y = r2*TMath::Sin(beta);
1112 //printf("betac=%e scb=%e t=%e s=%e beta=%e x=%e y=%e\n",
1113 // betac,scb,t,s,beta,x,y);
1116 beta = (s*t-scb+sca)/(r1*0.5*TMath::Pi());
1117 alpha = beta*0.5*TMath::Pi();
1118 x = r1*TMath::Cos(alpha);
1119 y = r1*TMath::Sin(alpha);
1120 //printf("alphac=%e sca=%e t=%e s=%e beta=%e alpha=%e x=%e y=%e\n",
1121 // alphac,sca,t,s,beta,alpha,x,y);
1126 //______________________________________________________________________
1127 Bool_t AliITSv11GeometrySPD::GetSectorMountingPoints(Int_t index,Double_t &x0,
1128 Double_t &y0, Double_t &x1, Double_t &y1) const
1131 // Returns the edges of the straight borders in the SPD sector shape,
1132 // which are used to mount staves on them.
1133 // Coordinate system is that of the carbon fiber sector volume.
1135 // Index numbering is as follows:
1141 // Arguments [the ones passed by reference contain output values]:
1142 // Int_t index --> location index according to above scheme [0-5]
1143 // Double_t &x0 --> (by ref) x0 location or the ladder sector [cm]
1144 // Double_t &y0 --> (by ref) y0 location of the ladder sector [cm]
1145 // Double_t &x1 --> (by ref) x1 location or the ladder sector [cm]
1146 // Double_t &y1 --> (by ref) y1 location of the ladder sector [cm]
1147 // TGeoManager *mgr --> The TGeo builder
1149 // The location is described by a line going from (x0, y0) to (x1, y1)
1151 // Returns kTRUE if no problems encountered.
1152 // Returns kFALSE if a problem was encountered (e.g.: shape not found).
1154 Int_t isize = fSPDsectorX0.GetSize();
1156 x0 = x1 = y0 = y1 = 0.0;
1157 if(index < 0 || index > isize) {
1158 AliError(Form("index = %d: allowed 0 --> %d", index, isize));
1160 } // end if(index<0||index>isize)
1161 x0 = fSPDsectorX0[index];
1162 x1 = fSPDsectorX1[index];
1163 y0 = fSPDsectorY0[index];
1164 y1 = fSPDsectorY1[index];
1167 //______________________________________________________________________
1168 void AliITSv11GeometrySPD::SPDsectorShape(Int_t n,const Double_t *xc,
1169 const Double_t *yc, const Double_t *r,
1170 const Double_t *ths, const Double_t *the,
1171 Int_t npr, Int_t &m, Double_t **xp, Double_t **yp) const
1174 // Code to compute the points that make up the shape of the SPD
1175 // Carbon fiber support sections
1177 // Int_t n size of arrays xc,yc, and r.
1178 // Double_t *xc array of x values for radii centers.
1179 // Double_t *yc array of y values for radii centers.
1180 // Double_t *r array of signed radii values.
1181 // Double_t *ths array of starting angles [degrees].
1182 // Double_t *the array of ending angles [degrees].
1183 // Int_t npr the number of lines segments to aproximate the arc.
1184 // Outputs (arguments passed by reference):
1185 // Int_t m the number of enetries in the arrays *xp[npr+1]
1187 // Double_t **xp array of x coordinate values of the line segments
1188 // which make up the SPD support sector shape.
1189 // Double_t **yp array of y coordinate values of the line segments
1190 // which make up the SPD support sector shape.
1197 cout <<" X \t Y \t R \t S \t E" << m << endl;
1198 for(i = 0; i < n; i++) {
1199 cout << "{" << xc[i] << ", ";
1200 cout << yc[i] << ", ";
1201 cout << r[i] << ", ";
1202 cout << ths[i] << ", ";
1203 cout << the[i] << "}, " << endl;
1205 } // end if(GetDebug(2))
1206 if (GetDebug(3)) cout << "Double_t sA0 = [" << n*(npr+1)+1<<"][";
1207 if (GetDebug(4)) cout << "3] {";
1208 else if(GetDebug(3)) cout <<"2] {";
1210 for(i = 0; i < n; i++) {
1211 t1 = (the[i] - ths[i]) / t0;
1212 if(GetDebug(5)) cout << "t1 = " << t1 << endl;
1213 for(k = 0; k <= npr; k++) {
1214 t = ths[i] + ((Double_t)k) * t1;
1215 xp[i][k] = TMath::Abs(r[i]) * CosD(t) + xc[i];
1216 yp[i][k] = TMath::Abs(r[i]) * SinD(t) + yc[i];
1218 cout << "{" << xp[i][k] << "," << yp[i][k];
1219 if (GetDebug(4)) cout << "," << t;
1221 } // end if GetDebug
1223 if(GetDebug(3)) cout << endl;
1225 if(GetDebug(3)) cout << "{" << xp[0][0] << ", " << yp[0][0];
1226 if(GetDebug(4)) cout << "," << ths[0];
1227 if(GetDebug(3)) cout << "}}" << endl;
1230 //______________________________________________________________________
1231 TGeoVolume* AliITSv11GeometrySPD::CreateLadder(Int_t layer,TArrayD &sizes,
1232 TGeoManager *mgr) const
1235 // Creates the "ladder" = silicon sensor + 5 chips.
1236 // Returns a TGeoVolume containing the following components:
1237 // - the sensor (TGeoBBox), whose name depends on the layer
1238 // - 5 identical chips (TGeoBBox)
1239 // - a guard ring around the sensor (subtraction of TGeoBBoxes),
1240 // which is separated from the rest of sensor because it is not
1242 // - bump bondings (TGeoBBox stripes for the whole width of the
1243 // sensor, one per column).
1246 // 1 - the owner layer (MUST be 1 or 2 or a fatal error is raised)
1247 // 2 - a TArrayD passed by reference, which will contain relevant
1248 // dimensions related to this object:
1249 // size[0] = 'thickness' (the smallest dimension)
1250 // size[1] = 'length' (the direction along the ALICE Z axis)
1251 // size[2] = 'width' (extension in the direction perp. to the
1253 // 3 - the used TGeoManager
1255 // ** CRITICAL CHECK **
1256 // layer number can be ONLY 1 or 2
1257 if (layer != 1 && layer != 2) AliFatal("Layer number MUST be 1 or 2");
1260 TGeoMedium *medAir = GetMedium("AIR$",mgr);
1261 TGeoMedium *medSPDSiChip = GetMedium("SPD SI CHIP$",mgr); // SPD SI CHIP
1262 TGeoMedium *medSi = GetMedium("SI$",mgr);
1263 TGeoMedium *medBumpBond = GetMedium("COPPER$",mgr); // ??? BumpBond
1266 Double_t chipThickness = fgkmm * 0.150;
1267 Double_t chipWidth = fgkmm * 15.950;
1268 Double_t chipLength = fgkmm * 13.600;
1269 Double_t chipSpacing = fgkmm * 0.400; // separation of chips along Z
1270 Double_t sensThickness = fgkmm * 0.200;
1271 Double_t sensLength = fgkmm * 69.600;
1272 Double_t sensWidth = fgkmm * 12.800;
1273 Double_t guardRingWidth = fgkmm * 0.560; // a border of this thickness
1274 // all around the sensor
1275 Double_t bbLength = fgkmm * 0.042;
1276 Double_t bbWidth = sensWidth;
1277 Double_t bbThickness = fgkmm * 0.012;
1278 Double_t bbPos = 0.080; // Z position w.r. to left pixel edge
1279 // compute the size of the container volume which
1280 // will also be returned in the referenced TArrayD;
1281 // for readability, they are linked by reference to a more meaningful name
1283 Double_t &thickness = sizes[0];
1284 Double_t &length = sizes[1];
1285 Double_t &width = sizes[2];
1286 // the container is a box which exactly enclose all the stuff;
1288 length = sensLength + 2.0*guardRingWidth;
1289 thickness = sensThickness + chipThickness + bbThickness;
1292 // While creating this volume, since it is a sensitive volume,
1293 // we must respect some standard criteria for its local reference frame.
1294 // Local X must correspond to x coordinate of the sensitive volume:
1295 // this means that we are going to create the container with a local
1296 // reference system that is **not** in the middle of the box.
1297 // This is accomplished by calling the shape constructor with an
1298 // additional option ('originShift'):
1299 Double_t xSens = 0.5 * (width - sensWidth - 2.0*guardRingWidth);
1300 Double_t originShift[3] = {-xSens, 0., 0.};
1301 TGeoBBox *shapeContainer = new TGeoBBox(0.5*width,0.5*thickness,
1302 0.5*length,originShift);
1303 // then the volume is made of air, and using this shape
1304 TGeoVolume *container = new TGeoVolume(Form("ITSSPDlay%d-Ladder",layer),
1305 shapeContainer, medAir);
1306 // the chip is a common box
1307 TGeoVolume *volChip = mgr->MakeBox("ITSSPDchip",medSPDSiChip,
1308 0.5*chipWidth,0.5*chipThickness,0.5*chipLength);
1309 // the sensor as well
1310 TGeoVolume *volSens = mgr->MakeBox(GetSenstiveVolumeName(layer),medSi,
1311 0.5*sensWidth,0.5*sensThickness,0.5*sensLength);
1312 // the guard ring shape is the subtraction of two boxes with the
1314 TGeoBBox *shIn = new TGeoBBox(0.5*sensWidth,sensThickness,0.5*sensLength);
1315 TGeoBBox *shOut = new TGeoBBox(0.5*sensWidth+guardRingWidth,
1316 0.5*sensThickness,0.5*sensLength+guardRingWidth);
1317 shIn->SetName("ITSSPDinnerBox");
1318 shOut->SetName("ITSSPDouterBox");
1319 TGeoCompositeShape *shBorder = new TGeoCompositeShape(
1320 "ITSSPDgaurdRingBorder",Form("%s-%s",shOut->GetName(),shIn->GetName()));
1321 TGeoVolume *volBorder = new TGeoVolume("ITSSPDgaurdRing",shBorder,medSi);
1322 // bump bonds for one whole column
1323 TGeoVolume *volBB = mgr->MakeBox("ITSSPDbb",medBumpBond,0.5*bbWidth,
1324 0.5*bbThickness,0.5*bbLength);
1325 // set colors of all objects for visualization
1326 volSens->SetLineColor(kYellow + 1);
1327 volChip->SetLineColor(kGreen);
1328 volBorder->SetLineColor(kYellow + 3);
1329 volBB->SetLineColor(kGray);
1332 // sensor is translated along thickness (X) and width (Y)
1333 Double_t ySens = 0.5 * (thickness - sensThickness);
1334 Double_t zSens = 0.0;
1335 // we want that the x of the ladder is the same as the one of
1336 // its sensitive volume
1337 TGeoTranslation *trSens = new TGeoTranslation(0.0, ySens, zSens);
1338 // bump bonds are translated along all axes:
1339 // keep same Y used for sensors, but change the Z
1340 TGeoTranslation *trBB[160];
1342 Double_t y = 0.5 * (thickness - bbThickness) - sensThickness;
1343 Double_t z = -0.5 * sensLength + guardRingWidth + fgkmm*0.425 - bbPos;
1345 for (i = 0; i < 160; i++) {
1346 trBB[i] = new TGeoTranslation(x, y, z);
1348 case 31:case 63:case 95:case 127:
1349 z += fgkmm * 0.625 + fgkmm * 0.2;
1355 // the chips are translated along the length (Z) and thickness (X)
1356 TGeoTranslation *trChip[5] = {0, 0, 0, 0, 0};
1358 y = 0.5 * (chipThickness - thickness);
1360 for (i = 0; i < 5; i++) {
1361 z = -0.5*length + guardRingWidth
1362 + (Double_t)i*chipSpacing + ((Double_t)(i) + 0.5)*chipLength;
1363 trChip[i] = new TGeoTranslation(x, y, z);
1366 // add nodes to container
1367 container->AddNode(volSens, 1, trSens);
1368 container->AddNode(volBorder, 1, trSens);
1369 for (i = 0; i < 160; i++) container->AddNode(volBB,i+1,trBB[i]);
1370 for (i = 0; i < 5; i++) container->AddNode(volChip,i+3,trChip[i]);
1371 // return the container
1375 //______________________________________________________________________
1376 TGeoVolume* AliITSv11GeometrySPD::CreateClip(TArrayD &sizes,Bool_t isDummy,
1377 TGeoManager *mgr) const
1380 // Creates the carbon fiber clips which are added to the central ladders.
1381 // They have a complicated shape which is approximated by a TGeoXtru
1382 // Implementation of a single clip over an half-stave.
1383 // It has a complicated shape which is approximated to a section like this:
1388 // / 1\\___________________4
1389 // 0 \___________________
1391 // with a finite thickness for all the shape
1392 // Its local reference frame is such that point A corresponds to origin.
1395 // MODIFIED geometry
1396 Double_t sposty = fgkmm * -0.5; // lower internal side to avoid overlaps with modified geometry
1398 Double_t fullLength = fgkmm * 12.6; // = x4 - x0
1399 Double_t flatLength = fgkmm * 5.4; // = x4 - x3
1400 Double_t inclLongLength = fgkmm * 5.0; // = 5-6
1401 Double_t inclShortLength = fgkmm * 2.0; // = 6-7
1402 Double_t fullHeight = fgkmm * 2.8; // = y6 - y3
1403 Double_t thickness = fgkmm * 0.18; // thickness
1404 Double_t totalLength = fgkmm * 52.0; // total length in Z
1405 Double_t holeSize = fgkmm * 5.0; // dimension of cubic
1406 // hole inserted for pt1000
1407 Double_t angle1 = 27.0; // supplementary of angle DCB
1408 Double_t angle2; // angle DCB
1409 Double_t angle3; // angle of GH with vertical
1411 angle2 = 0.5 * (180.0 - angle1);
1412 angle3 = 90.0 - TMath::ACos(fullLength - flatLength -
1413 inclLongLength*TMath::Cos(angle1)) *
1415 angle1 *= TMath::DegToRad();
1416 angle2 *= TMath::DegToRad();
1417 angle3 *= TMath::DegToRad();
1419 Double_t x[8], y[8];
1422 x[1] = x[0] + fullLength - flatLength - inclLongLength*TMath::Cos(angle1);
1423 x[2] = x[0] + fullLength - flatLength;
1424 x[3] = x[0] + fullLength;
1426 x[5] = x[4] - flatLength + thickness * TMath::Cos(angle2);
1431 y[1] = y[0] + inclShortLength * TMath::Cos(angle3);
1432 y[2] = y[1] - inclLongLength * TMath::Sin(angle1);
1434 y[4] = y[3] + thickness;
1436 y[6] = y[1] + thickness;
1437 y[7] = y[0] + thickness;
1443 sizes[0] = totalLength;
1444 sizes[1] = fullHeight;
1451 if(isDummy){// use this argument when on ewant just the
1452 // positions without create any volume
1456 TGeoXtru *shClip = new TGeoXtru(2);
1457 shClip->SetName("ITSSPDshclip");
1458 shClip->DefinePolygon(8, x, y);
1459 shClip->DefineSection(0, -0.5*totalLength, 0., 0., 1.0);
1460 shClip->DefineSection(1, 0.5*totalLength, 0., 0., 1.0);
1462 TGeoBBox *shHole = new TGeoBBox("ITSSPDSHClipHole",0.5*holeSize,
1463 0.5*holeSize,0.5*holeSize);
1464 TGeoTranslation *tr1 = new TGeoTranslation("ITSSPDTRClipHole1",x[2],0.0,
1466 TGeoTranslation *tr2 = new TGeoTranslation("ITSSPDTRClipHole2",x[2],0.0,
1468 TGeoTranslation *tr3 = new TGeoTranslation("ITSSPDTRClipHole3",x[2],0.0,
1470 tr1->RegisterYourself();
1471 tr2->RegisterYourself();
1472 tr3->RegisterYourself();
1474 //TString strExpr("ITSSPDshclip-(");
1475 TString strExpr(shClip->GetName());
1476 strExpr.Append("-(");
1477 strExpr.Append(Form("%s:%s+", shHole->GetName(), tr1->GetName()));
1478 strExpr.Append(Form("%s:%s+", shHole->GetName(), tr2->GetName()));
1479 strExpr.Append(Form("%s:%s)", shHole->GetName(), tr3->GetName()));
1480 TGeoCompositeShape *shClipHole = new TGeoCompositeShape(
1481 "ITSSPDSHClipHoles",strExpr.Data());
1483 TGeoMedium *mat = GetMedium("SPD C (M55J)$", mgr);
1484 TGeoVolume *vClip = new TGeoVolume("ITSSPDclip", shClipHole, mat);
1485 vClip->SetLineColor(kGray + 2);
1489 //______________________________________________________________________
1490 TGeoVolume* AliITSv11GeometrySPD::CreatePatchPanel(TArrayD &sizes,
1491 TGeoManager *mgr) const
1494 // Creates the patch panel approximated with a "L"-shaped TGeoXtru
1495 // with a finite thickness for all the shape
1496 // Its local reference frame is such that point A corresponds to origin.
1498 Double_t hLength = fgkmm * 50.0; // horizontal length
1499 Double_t vLength = fgkmm * 50.0; // vertical length
1500 Double_t angle = 88.3; // angle between hor and vert
1501 Double_t thickness = fgkmm * 4.0; // thickness
1502 Double_t width = fgkmm * 100.0; // width looking from cone
1504 Double_t x[7], y[7];
1507 y[1] = y[0] + hLength;
1509 y[3] = y[0] + thickness;
1510 y[4] = y[3] + vLength * TMath::Cos(angle*TMath::DegToRad());
1511 y[5] = y[4] - thickness / TMath::Sin(angle*TMath::DegToRad());
1516 x[2] = x[1] + thickness;
1518 x[4] = x[3] + vLength * TMath::Sin(angle*TMath::DegToRad());
1520 x[6] = x[0] + thickness;
1525 sizes[2] = thickness;
1527 TGeoXtru *shPatch = new TGeoXtru(2);
1528 shPatch->SetName("ITSSPDpatchShape1");
1529 shPatch->DefinePolygon(7, x, y);
1530 shPatch->DefineSection(0, -0.5*width, 0., 0., 1.0);
1531 shPatch->DefineSection(1, 0.5*width, 0., 0., 1.0);
1534 Double_t subThickness = 10.0 * fgkmm;
1535 Double_t subWidth = 55.0 * fgkmm;
1536 new TGeoBBox("ITSSPDpatchShape2", 0.5*subThickness, 60.0 * fgkmm, 0.5*subWidth);
1537 TGeoRotation *rotSub = new TGeoRotation(*gGeoIdentity);
1538 rotSub->SetName("shPatchSubRot");
1539 rotSub->RotateZ(50.0);
1540 rotSub->RegisterYourself();
1541 TGeoCombiTrans *trSub = new TGeoCombiTrans(0.26*hLength, 0.26*vLength, 0.0, rotSub);
1542 trSub->SetName("shPatchSubTr");
1543 trSub->RegisterYourself();
1545 TGeoCompositeShape *shPatchFinal = new TGeoCompositeShape("ITSSPDpatchShape1-(ITSSPDpatchShape2:shPatchSubTr)");
1548 TGeoMedium *mat = GetMedium("AL$", mgr);
1549 //TGeoVolume *vPatch = new TGeoVolume("ITSSPDpatchPanel", shPatchFinal, mat);
1550 TGeoVolume *vPatch = new TGeoVolume("ITSSPDpatchPanel", shPatch, mat);
1551 vPatch->SetLineColor(kAzure);
1556 //___________________________________________________________________
1557 TGeoCompositeShape* AliITSv11GeometrySPD::CreateGroundingFoilShape
1558 (Int_t itype,Double_t &length,Double_t &width,
1559 Double_t thickness,TArrayD &sizes)
1562 // Creates the typical composite shape of the grounding foil:
1564 // +---------------------------------------------------------+
1566 // | +-----------+ +------------+ 10
1568 // | 3 /-----+ 4 +------+
1575 // This shape is used 4 times: two layers of glue, one in kapton
1576 // and one in aluminum, taking into account that the aliminum
1577 // layer has small differences in the size of some parts.
1579 // In order to overcome problems apparently due to a large number
1580 // of points, the shape creation is done according the following
1582 // 1) a TGeoBBox is created with a size right enough to contain
1583 // the whole shape (0-1-X-13)
1584 // 2) holes are defined as other TGeoBBox which are subtracted
1585 // from the main shape
1586 // 3) a TGeoXtru is defined connecting the points (0-->11-->0)
1587 // and is also subtracted from the main shape
1589 // The argument ("type") is used to choose between all these
1591 // - type = 0 --> kapton layer
1592 // - type = 1 --> aluminum layer
1593 // - type = 2 --> glue layer between support and GF
1594 // - type = 3 --> glue layer between GF and ladders
1595 // Returns: a TGeoCompositeShape which will then be used to shape
1596 // several volumes. Since TGeoXtru is used, the local reference
1597 // frame of this object has X horizontal and Y vertical w.r to
1598 // the shape drawn above, and Z axis going perpendicularly to the screen.
1599 // This is not the correct reference for the half stave, for which
1600 // the "long" dimension is Z and the "short" is X, while Y goes in
1601 // the direction of thickness. This will imply some rotations when
1602 // using the volumes created with this shape.
1604 // suffix to differentiate names
1607 // size of the virtual box containing exactly this volume
1608 length = fgkmm * 243.18;
1609 width = fgkmm * 15.95;
1611 length -= fgkmm * 0.4;
1612 width -= fgkmm * 0.4;
1613 } // end if itype==1
1616 snprintf(type,10,"Kap");
1619 snprintf(type,10, "Alu");
1622 snprintf(type,10,"Glue1");
1625 snprintf(type,10,"Glue2");
1628 // we divide the shape in several slices along the horizontal
1629 // direction (local X) here we define define the length of all
1630 // sectors (from leftmost to rightmost)
1632 Double_t sliceLength[] = { 140.71, 2.48, 26.78, 4.00,
1633 10.00, 24.40, 10.00, 24.81 };
1634 for (i = 0; i < 8; i++) sliceLength[i] *= fgkmm;
1636 sliceLength[0] -= fgkmm * 0.2;
1637 sliceLength[4] -= fgkmm * 0.2;
1638 sliceLength[5] += fgkmm * 0.4;
1639 sliceLength[6] -= fgkmm * 0.4;
1640 } // end if itype ==1
1642 // as shown in the drawing, we have four different widths
1643 // (along local Y) in this shape:
1644 Double_t widthMax = fgkmm * 15.95;
1645 Double_t widthMed1 = fgkmm * 15.00;
1646 Double_t widthMed2 = fgkmm * 11.00;
1647 Double_t widthMin = fgkmm * 4.40;
1649 widthMax -= fgkmm * 0.4;
1650 widthMed1 -= fgkmm * 0.4;
1651 widthMed2 -= fgkmm * 0.4;
1652 widthMin -= fgkmm * 0.4;
1653 } // end if itype==1
1655 // create the main shape
1656 TGeoBBox *shGroundFull = 0;
1657 shGroundFull = new TGeoBBox(Form("ITSSPDSHgFoil%sFull", type),
1658 0.5*length,0.5*width, 0.5*thickness);
1660 if(GetDebug(5)) shGroundFull->Print(); // Avoid Coverity warning
1662 // create the polygonal shape to be subtracted to give the correct
1663 // shape to the borders its vertices are defined in sugh a way that
1664 // this polygonal will be placed in the correct place considered
1665 // that the origin of the local reference frame is in the center
1666 // of the main box: we fix the starting point at the lower-left
1667 // edge of the shape (point 12), and add all points in order,
1668 // following a clockwise rotation
1670 Double_t x[13], y[13];
1671 x[ 0] = -0.5 * length + sliceLength[0];
1672 y[ 0] = -0.5 * widthMax;
1674 x[ 1] = x[0] + sliceLength[1];
1675 y[ 1] = y[0] + (widthMax - widthMed1);
1677 x[ 2] = x[1] + sliceLength[2];
1680 x[ 3] = x[2] + sliceLength[3];
1681 y[ 3] = y[2] + (widthMed1 - widthMed2);
1683 x[ 4] = x[3] + sliceLength[4];
1687 y[ 5] = y[4] + (widthMed2 - widthMin);
1689 x[ 6] = x[5] + sliceLength[5];
1695 x[ 8] = x[7] + sliceLength[6];
1701 x[10] = x[9] + sliceLength[7] + 0.5;
1711 TGeoXtru *shGroundXtru = new TGeoXtru(2);
1712 shGroundXtru->SetName(Form("ITSSPDSHgFoil%sXtru", type));
1713 shGroundXtru->DefinePolygon(13, x, y);
1714 shGroundXtru->DefineSection(0, -thickness, 0., 0., 1.0);
1715 shGroundXtru->DefineSection(1, thickness, 0., 0., 1.0);
1717 // define a string which will express the algebric operations among volumes
1718 // and add the subtraction of this shape from the main one
1719 TString strComposite(Form("ITSSPDSHgFoil%sFull-(%s+", type,
1720 shGroundXtru->GetName()));
1722 // define the holes according to size information coming from drawings:
1723 Double_t holeLength = fgkmm * 10.00;
1724 Double_t holeWidth = fgkmm * 7.50;
1725 Double_t holeSepX0 = fgkmm * 7.05; // separation between center
1726 // of first hole and left border
1727 Double_t holeSepXC = fgkmm * 14.00; // separation between the centers
1728 // of two consecutive holes
1729 Double_t holeSepX1 = fgkmm * 15.42; // separation between centers of
1731 Double_t holeSepX2 = fgkmm * 22.00; // separation between centers of
1732 // 10th and 11th hole
1734 holeSepX0 -= fgkmm * 0.2;
1735 holeLength += fgkmm * 0.4;
1736 holeWidth += fgkmm * 0.4;
1737 } // end if itype==1
1739 sizes[0] = holeLength;
1740 sizes[1] = holeWidth;
1741 sizes[2] = holeSepX0;
1742 sizes[3] = holeSepXC;
1743 sizes[4] = holeSepX1;
1744 sizes[5] = holeSepX2;
1745 sizes[6] = fgkmm * 4.40;
1747 // X position of hole center (will change for each hole)
1748 Double_t holeX = -0.5*length;
1749 // Y position of center of all holes (= 4.4 mm from upper border)
1750 Double_t holeY = 0.5*(width - holeWidth) - widthMin;
1752 // create a shape for the holes (common)
1753 new TGeoBBox(Form("ITSSPD%sGfoilHole", type),0.5*holeLength,
1754 0.5*holeWidth, thickness);
1756 // insert the holes in the XTRU shape:
1757 // starting from the first value of X, they are simply
1758 // shifted along this axis
1760 TGeoTranslation *transHole[11];
1761 for (i = 0; i < 11; i++) {
1762 // set the position of the hole, depending on index
1773 } // end if else if's
1774 //cout << i << " --> X = " << holeX << endl;
1775 snprintf(name,200,"ITSSPDTRgFoil%sHole%d", type, i);
1776 transHole[i] = new TGeoTranslation(name, holeX, holeY, 0.0);
1777 transHole[i]->RegisterYourself();
1778 strComposite.Append(Form("ITSSPD%sGfoilHole:%s", type, name));
1779 if (i < 10) strComposite.Append("+"); else strComposite.Append(")");
1782 // create composite shape
1783 TGeoCompositeShape *shGround = new TGeoCompositeShape(
1784 Form("ITSSPDSHgFoil%s", type), strComposite.Data());
1788 //______________________________________________________________________
1789 TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateGroundingFoil(Bool_t isRight,
1790 TArrayD &sizes, TGeoManager *mgr)
1793 // Create a volume containing all parts of the grounding foil a
1794 // for a half-stave.
1795 // It consists of 4 layers with the same shape but different thickness:
1796 // 1) a layer of glue
1797 // 2) the aluminum layer
1798 // 3) the kapton layer
1799 // 4) another layer of glue
1802 // 1: a boolean value to know if it is the grounding foir for
1803 // the right or left side
1804 // 2: a TArrayD which will contain the dimension of the container box:
1805 // - size[0] = length along Z (the beam line direction)
1806 // - size[1] = the 'width' of the stave, which defines, together
1807 // with Z, the plane of the carbon fiber support
1808 // - size[2] = 'thickness' (= the direction along which all
1809 // stave components are superimposed)
1810 // 3: the TGeoManager
1812 // The return value is a TGeoBBox volume containing all grounding
1814 // to avoid strange behaviour of the geometry manager,
1815 // create a suffix to be used in the names of all shapes
1818 if (isRight) strncpy(suf, "R", 5); else strncpy(suf, "L", 5);
1819 // this volume will be created in order to ease its placement in
1820 // the half-stave; then, it is added here the small distance of
1821 // the "central" edge of each volume from the Z=0 plane in the stave
1822 // reference (which coincides with ALICE one)
1823 Double_t dist = fgkmm * 0.71;
1826 TGeoMedium *medKap = GetMedium("SPD KAPTON(POLYCH2)$", mgr);
1827 TGeoMedium *medAlu = GetMedium("AL$", mgr);
1828 TGeoMedium *medGlue = GetMedium("EPOXY$", mgr); //??? GLUE_GF_SUPPORT
1830 // compute the volume shapes (thicknesses change from one to the other)
1831 Double_t kpLength, kpWidth, alLength, alWidth;
1832 TArrayD kpSize, alSize, glSize;
1833 Double_t kpThickness = fgkmm * 0.04;
1834 Double_t alThickness = fgkmm * 0.01;
1835 //cout << "AL THICKNESS" << alThickness << endl;
1836 //Double_t g0Thickness = fgkmm * 0.1175 - fgkGapHalfStave;
1837 //Double_t g1Thickness = fgkmm * 0.1175 - fgkGapLadder;
1838 Double_t g0Thickness = fgkmm * 0.1275 - fgkGapHalfStave;
1839 Double_t g1Thickness = fgkmm * 0.1275 - fgkGapLadder;
1840 TGeoCompositeShape *kpShape = CreateGroundingFoilShape(0,kpLength,kpWidth,
1841 kpThickness, kpSize);
1842 TGeoCompositeShape *alShape = CreateGroundingFoilShape(1,alLength,alWidth,
1843 alThickness, alSize);
1844 TGeoCompositeShape *g0Shape = CreateGroundingFoilShape(2,kpLength,kpWidth,
1845 g0Thickness, glSize);
1846 TGeoCompositeShape *g1Shape = CreateGroundingFoilShape(3,kpLength,kpWidth,
1847 g1Thickness, glSize);
1848 // create the component volumes and register their sizes in the
1849 // passed arrays for readability reasons, some reference variables
1850 // explicit the meaning of the array slots
1851 TGeoVolume *kpVol = new TGeoVolume(Form("ITSSPDgFoilKap%s",suf),
1853 TGeoVolume *alVol = new TGeoVolume(Form("ITSSPDgFoilAlu%s",suf),
1855 TGeoVolume *g0Vol = new TGeoVolume(Form("ITSSPDgFoilGlue%s",suf),
1857 TGeoVolume *g1Vol = new TGeoVolume(Form("ITSSPDgFoilGlue%s",suf),
1859 // set colors for the volumes
1860 kpVol->SetLineColor(kRed);
1861 alVol->SetLineColor(kGray);
1862 g0Vol->SetLineColor(kYellow);
1863 g1Vol->SetLineColor(kYellow);
1864 // create references for the final size object
1865 if (sizes.GetSize() != 3) sizes.Set(3);
1866 Double_t &fullThickness = sizes[0];
1867 Double_t &fullLength = sizes[1];
1868 Double_t &fullWidth = sizes[2];
1869 // kapton leads the larger dimensions of the foil
1870 // (including the cited small distance from Z=0 stave reference plane)
1871 // the thickness is the sum of the ones of all components
1872 fullLength = kpLength + dist;
1873 fullWidth = kpWidth;
1874 fullThickness = kpThickness + alThickness + g0Thickness + g1Thickness;
1875 // create the container
1876 // TGeoMedium *air = GetMedium("AIR$", mgr);
1877 TGeoVolumeAssembly *container = new TGeoVolumeAssembly(Form("ITSSPDgFOIL-%s",suf));
1878 // TGeoVolume *container = mgr->MakeBox(Form("ITSSPDgFOIL-%s",suf),
1879 // air, 0.5*fullThickness, 0.5*fullWidth, 0.5*fullLength);
1880 // create the common correction rotation (which depends of what side
1882 TGeoRotation *rotCorr = new TGeoRotation(*gGeoIdentity);
1883 if (isRight) rotCorr->RotateY(90.0);
1884 else rotCorr->RotateY(-90.0);
1885 // compute the translations, which are in the length and
1886 // thickness directions
1887 Double_t x, y, z, shift = 0.0;
1888 if (isRight) shift = dist;
1890 x = -0.5*(fullThickness - g0Thickness);
1891 z = 0.5*(fullLength - kpLength) - shift;
1892 TGeoCombiTrans *glTrans0 = new TGeoCombiTrans(x, 0.0, z, rotCorr);
1894 x += 0.5*(g0Thickness + kpThickness);
1895 TGeoCombiTrans *kpTrans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
1897 x += 0.5*(kpThickness + alThickness);
1898 z = 0.5*(fullLength - alLength) - shift - 0.5*(kpLength - alLength);
1899 TGeoCombiTrans *alTrans = new TGeoCombiTrans(x, 0.0, z, rotCorr);
1901 x += 0.5*(alThickness + g1Thickness);
1902 z = 0.5*(fullLength - kpLength) - shift;
1903 TGeoCombiTrans *glTrans1 = new TGeoCombiTrans(x, 0.0, z, rotCorr);
1905 //cout << fgkGapHalfStave << endl;
1906 //cout << g0Thickness << endl;
1907 //cout << kpThickness << endl;
1908 //cout << alThickness << endl;
1909 //cout << g1Thickness << endl;
1912 container->SetLineColor(kMagenta-10);
1913 container->AddNode(kpVol, 1, kpTrans);
1914 container->AddNode(alVol, 1, alTrans);
1915 container->AddNode(g0Vol, 1, glTrans0);
1916 container->AddNode(g1Vol, 2, glTrans1);
1917 // to add the grease we remember the sizes of the holes, stored as
1918 // additional parameters in the kapton layer size:
1919 // - sizes[3] = hole length
1920 // - sizes[4] = hole width
1921 // - sizes[5] = position of first hole center
1922 // - sizes[6] = standard separation between holes
1923 // - sizes[7] = separation between 5th and 6th hole
1924 // - sizes[8] = separation between 10th and 11th hole
1925 // - sizes[9] = separation between the upper hole border and
1927 Double_t holeLength = kpSize[0];
1928 Double_t holeWidth = kpSize[1];
1929 Double_t holeFirstZ = kpSize[2];
1930 Double_t holeSepZ = kpSize[3];
1931 Double_t holeSep5th6th = kpSize[4];
1932 Double_t holeSep10th11th = kpSize[5];
1933 Double_t holeSepY = kpSize[6];
1935 // Grease has not been defined to date. Need much more information
1936 // no this material!
1937 TGeoMedium *grease = GetMedium("SPD KAPTON(POLYCH2)$", mgr); // ??? GREASE
1938 TGeoVolume *hVol = mgr->MakeBox("ITSSPDGrease", grease,
1939 0.5*fullThickness, 0.5*holeWidth, 0.5*holeLength);
1940 hVol->SetLineColor(kBlue);
1941 // displacement of volumes in the container
1942 Int_t idx = 1; // copy numbers start from 1.
1944 y = 0.5*(fullWidth - holeWidth) - holeSepY;
1945 if (isRight) z = holeFirstZ - 0.5*fullLength + dist;
1946 else z = 0.5*fullLength - holeFirstZ - dist;
1947 for (Int_t i = 0; i < 11; i++) {
1948 TGeoTranslation *t = 0;
1949 t = new TGeoTranslation(x, y, -z);
1950 container->AddNode(hVol, idx++, t);
1951 if (i < 4) shift = holeSepZ;
1952 else if (i == 4) shift = holeSep5th6th;
1953 else if (i < 9) shift = holeSepZ;
1954 else shift = holeSep10th11th;
1955 if (isRight) z += shift;
1960 //___________________________________________________________________
1961 TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateMCM(Bool_t isRight,
1962 TArrayD &sizes, TGeoManager *mgr) const
1965 // Create a TGeoAssembly containing all the components of the MCM.
1966 // The TGeoVolume container is rejected due to the possibility of overlaps
1967 // when placing this object on the carbon fiber sector.
1968 // The assembly contains:
1969 // - the thin part of the MCM (integrated circuit)
1970 // - the MCM chips (specifications from EDMS)
1971 // - the cap which covers the zone where chips are bound to MCM
1973 // The local reference frame of this assembly is defined in such a way
1974 // that all volumes are contained in a virtual box whose center
1975 // is placed exactly in the middle of the occupied space w.r to all
1976 // directions. This will ease the positioning of this object in the
1977 // half-stave. The sizes of this virtual box are stored in
1978 // the array passed by reference.
1981 // - a boolean flag to know if this is the "left" or "right" MCM, when
1982 // looking at the stave from above (i.e. the direction from which
1983 // one sees bus over ladders over grounding foil) and keeping the
1984 // continuous border in the upper part, one sees the thicker part
1985 // on the left or right.
1986 // - an array passed by reference which will contain the size of
1987 // the virtual container.
1988 // - a pointer to the used TGeoManager.
1991 // to distinguish the "left" and "right" objects, a suffix is created
1993 if (isRight) strncpy(suf, "R", 5); else strncpy(suf, "L", 5);
1996 TGeoMedium *medBase = GetMedium("SPD KAPTON(POLYCH2)$",mgr);// ??? MCM BASE
1997 TGeoMedium *medChip = GetMedium("SPD SI CHIP$",mgr);
1998 TGeoMedium *medCap = GetMedium("AL$",mgr);
2000 // The shape of the MCM is divided into 3 sectors with different
2001 // widths (Y) and lengths (X), like in this sketch:
2004 // +---------------------+-----------------------------------+
2006 // | 6 sect 1 /-------------------+
2007 // | sect 0 /--------------/ 3
2008 // +--------------------/ 5
2011 // the inclination of all oblique borders (6-7, 4-5) is always 45 degrees.
2012 // From drawings we can parametrize the dimensions of all these sectors,
2013 // then the shape of this part of the MCM is implemented as a
2014 // TGeoXtru centerd in the virtual XY space.
2015 // The first step is definig the relevant sizes of this shape:
2017 Double_t mcmThickness = fgkmm * 0.35;
2018 Double_t sizeXtot = fgkmm * 105.6; // total distance (0-2)
2019 // resp. 7-8, 5-6 and 3-4
2020 Double_t sizeXsector[3] = {fgkmm * 28.4, fgkmm * 41.4, fgkmm * 28.8};
2021 // resp. 0-8, 1-6 and 2-3
2022 Double_t sizeYsector[3] = {fgkmm * 15.0, fgkmm * 11.0, fgkmm * 8.0};
2023 Double_t sizeSep01 = fgkmm * 4.0; // x(6)-x(7)
2024 Double_t sizeSep12 = fgkmm * 3.0; // x(4)-x(5)
2026 // define sizes of chips (last is the thickest)
2027 Double_t chipLength[5] = { 4.00, 6.15, 3.85, 5.60, 18.00 };
2028 Double_t chipWidth[5] = { 3.00, 4.10, 3.85, 5.60, 5.45 };
2029 Double_t chipThickness[5] = { 0.60, 0.30, 0.30, 1.00, 1.20 };
2031 name[0] = "ITSSPDanalog";
2032 name[1] = "ITSSPDpilot";
2033 name[2] = "ITSSPDgol";
2034 name[3] = "ITSSPDrx40";
2035 name[4] = "ITSSPDoptical";
2036 Color_t color[5] = { kCyan, kGreen, kYellow, kBlue, kOrange };
2038 // define the sizes of the cover
2039 Double_t capThickness = fgkmm * 0.3;
2040 Double_t capHeight = fgkmm * 1.7;
2042 // compute the total size of the virtual container box
2044 Double_t &thickness = sizes[0];
2045 Double_t &length = sizes[1];
2046 Double_t &width = sizes[2];
2048 width = sizeYsector[0];
2049 thickness = mcmThickness + capHeight;
2051 // define all the relevant vertices of the polygon
2052 // which defines the transverse shape of the MCM.
2053 // These values are used to several purposes, and
2054 // for each one, some points must be excluded
2055 Double_t xRef[9], yRef[9];
2056 xRef[0] = -0.5*sizeXtot;
2057 yRef[0] = 0.5*sizeYsector[0];
2058 xRef[1] = xRef[0] + sizeXsector[0] + sizeSep01;
2063 yRef[3] = yRef[2] - sizeYsector[2];
2064 xRef[4] = xRef[3] - sizeXsector[2];
2066 xRef[5] = xRef[4] - sizeSep12;
2067 yRef[5] = yRef[4] - sizeSep12;
2068 xRef[6] = xRef[5] - sizeXsector[1];
2070 xRef[7] = xRef[6] - sizeSep01;
2071 yRef[7] = yRef[6] - sizeSep01;
2075 // the above points are defined for the "right" MCM (if ve view the
2076 // stave from above) in order to change to the "left" one, we must
2077 // change the sign to all X values:
2078 if (isRight) for (i = 0; i < 9; i++) xRef[i] = -xRef[i];
2080 // the shape of the MCM and glue layer are done excluding point 1,
2081 // which is not necessary and cause the geometry builder to get confused
2083 Double_t xBase[8], yBase[8];
2084 for (i = 0; i < 9; i++) {
2085 if (i == 1) continue;
2091 // the MCM cover is superimposed over the zones 1 and 2 only
2092 Double_t xCap[6], yCap[6];
2094 for (i = 1; i <= 6; i++) {
2100 // define positions of chips,
2101 // which must be added to the bottom-left corner of MCM
2102 // and divided by 1E4;
2103 Double_t chipX[5], chipY[5];
2127 for (i = 0; i < 5; i++) {
2128 chipX[i] *= 0.00001;
2129 chipY[i] *= 0.00001;
2131 chipX[i] += xRef[3];
2132 chipY[i] += yRef[3];
2134 chipX[i] += xRef[8];
2135 chipY[i] += yRef[8];
2136 } // end for isRight
2137 chipLength[i] *= fgkmm;
2138 chipWidth[i] *= fgkmm;
2139 chipThickness[i] *= fgkmm;
2142 // create shapes for MCM
2144 TGeoXtru *shBase = new TGeoXtru(2);
2145 z1 = -0.5*thickness;
2146 z2 = z1 + mcmThickness;
2147 shBase->DefinePolygon(8, xBase, yBase);
2148 shBase->DefineSection(0, z1, 0., 0., 1.0);
2149 shBase->DefineSection(1, z2, 0., 0., 1.0);
2151 // create volumes of MCM
2152 TGeoVolume *volBase = new TGeoVolume("ITSSPDbase", shBase, medBase);
2153 volBase->SetLineColor(kRed);
2155 // to create the border of the MCM cover, it is required the
2156 // subtraction of two shapes the outer is created using the
2157 // reference points defined here
2158 TGeoXtru *shCapOut = new TGeoXtru(2);
2159 shCapOut->SetName(Form("ITSSPDshCAPOUT%s", suf));
2161 z2 = z1 + capHeight - capThickness;
2162 shCapOut->DefinePolygon(6, xCap, yCap);
2163 shCapOut->DefineSection(0, z1, 0., 0., 1.0);
2164 shCapOut->DefineSection(1, z2, 0., 0., 1.0);
2165 // the inner is built similarly but subtracting the thickness
2167 Double_t xin[6], yin[6];
2170 cs = TMath::Cos( 0.5*(TMath::Pi() - angle*TMath::DegToRad()) );
2171 xin[0] = xCap[0] + capThickness;
2172 yin[0] = yCap[0] - capThickness;
2173 xin[1] = xCap[1] - capThickness;
2176 yin[2] = yCap[2] + capThickness;
2177 xin[3] = xCap[3] - capThickness*cs;
2179 xin[4] = xin[3] - sizeSep12;
2180 yin[4] = yCap[4] + capThickness;
2185 cs = TMath::Cos( 0.5*(TMath::Pi() - angle*TMath::DegToRad()) );
2186 xin[0] = xCap[0] - capThickness;
2187 yin[0] = yCap[0] - capThickness;
2188 xin[1] = xCap[1] + capThickness;
2191 yin[2] = yCap[2] + capThickness;
2192 xin[3] = xCap[3] - capThickness*cs;
2194 xin[4] = xin[3] + sizeSep12;
2195 yin[4] = yCap[4] + capThickness;
2198 } // end if !isRight
2199 TGeoXtru *shCapIn = new TGeoXtru(2);
2200 shCapIn->SetName(Form("ITSSPDshCAPIN%s", suf));
2201 shCapIn->DefinePolygon(6, xin, yin);
2202 shCapIn->DefineSection(0, z1 - 0.01, 0., 0., 1.0);
2203 shCapIn->DefineSection(1, z2 + 0.01, 0., 0., 1.0);
2205 TGeoCompositeShape *shCapBorder = new TGeoCompositeShape(
2206 Form("ITSSPDshBORDER%s", suf),
2207 Form("%s-%s", shCapOut->GetName(),
2208 shCapIn->GetName()));
2210 TGeoVolume *volCapBorder = new TGeoVolume("ITSSPDcapBoarder",
2211 shCapBorder,medCap);
2212 volCapBorder->SetLineColor(kGreen);
2213 // finally, we create the top of the cover, which has the same
2214 // shape of outer border and a thickness equal of the one othe
2216 TGeoXtru *shCapTop = new TGeoXtru(2);
2218 z2 = z1 + capThickness;
2219 shCapTop->DefinePolygon(6, xCap, yCap);
2220 shCapTop->DefineSection(0, z1, 0., 0., 1.0);
2221 shCapTop->DefineSection(1, z2, 0., 0., 1.0);
2222 TGeoVolume *volCapTop = new TGeoVolume("ITSSPDcapTop", shCapTop, medCap);
2223 volCapTop->SetLineColor(kBlue);
2225 // create container assembly with right suffix
2226 TGeoVolumeAssembly *mcmAssembly = new TGeoVolumeAssembly(
2227 Form("ITSSPDmcm%s", suf));
2230 mcmAssembly->AddNode(volBase, 1, gGeoIdentity);
2232 for (i = 0; i < 5; i++) {
2233 TGeoVolume *box = gGeoManager->MakeBox(name[i],medChip,
2234 0.5*chipLength[i], 0.5*chipWidth[i], 0.5*chipThickness[i]);
2235 TGeoTranslation *tr = new TGeoTranslation(chipX[i],chipY[i],
2236 0.5*(-thickness + chipThickness[i]) + mcmThickness);
2237 box->SetLineColor(color[i]);
2238 mcmAssembly->AddNode(box, 1, tr);
2241 mcmAssembly->AddNode(volCapBorder, 1, gGeoIdentity);
2243 mcmAssembly->AddNode(volCapTop, 1, gGeoIdentity);
2248 //______________________________________________________________________
2249 TGeoVolumeAssembly* AliITSv11GeometrySPD::CreatePixelBus
2250 (Bool_t isRight, Int_t ilayer, TArrayD &sizes, TGeoManager *mgr) const
2253 // The pixel bus is implemented as a TGeoBBox with some objects on it,
2254 // which could affect the particle energy loss.
2256 // In order to avoid confusion, the bus is directly displaced
2257 // according to the axis orientations which are used in the final stave:
2258 // X --> thickness direction
2259 // Y --> width direction
2260 // Z --> length direction
2263 // ** CRITICAL CHECK ******************************************************
2264 // layer number can be ONLY 1 or 2
2265 if (ilayer != 1 && ilayer != 2) AliFatal("Layer number MUST be 1 or 2");
2269 TGeoMedium *medBus = GetMedium("SPDBUS(AL+KPT+EPOX)$",mgr);
2270 TGeoMedium *medPt1000 = GetMedium("CERAMICS$",mgr); // ??? PT1000
2272 TGeoMedium *medCap = GetMedium("SDD X7R capacitors$",mgr);
2274 //TGeoMedium *medRes = GetMedium("SDD X7R capacitors$",mgr);
2275 TGeoMedium *medRes = GetMedium("ALUMINUM$",mgr);
2276 //TGeoMedium *medExt = GetMedium("SDDKAPTON (POLYCH2)$", mgr);
2277 TGeoMedium *medExt = GetMedium("SPD-MIX CU KAPTON$", mgr);
2278 // ** SIZES & POSITIONS **
2279 Double_t busLength = 170.501 * fgkmm; // length of plane part
2280 Double_t busWidth = 13.800 * fgkmm; // width
2281 Double_t busThickness = 0.280 * fgkmm; // thickness
2282 Double_t pt1000Length = fgkmm * 1.50;
2283 Double_t pt1000Width = fgkmm * 3.10;
2284 Double_t pt1000Thickness = fgkmm * 0.60;
2285 Double_t pt1000Y, pt1000Z[10];// position of the pt1000's along the bus
2286 Double_t capLength = fgkmm * 2.55;
2287 Double_t capWidth = fgkmm * 1.50;
2288 Double_t capThickness = fgkmm * 1.35;
2289 Double_t capY[2], capZ[2];
2291 Double_t resLength = fgkmm * 2.20;
2292 Double_t resWidth = fgkmm * 0.80;
2293 Double_t resThickness = fgkmm * 0.35;
2294 Double_t resY[2], resZ[2];
2296 Double_t extThickness = fgkmm * 0.25;
2297 Double_t ext1Length = fgkmm * (26.7 - 10.0);
2298 Double_t ext2Length = fgkmm * 284.0 - ext1Length + extThickness;
2299 Double_t ext2LengthL2 = fgkmm * 130.0;
2300 Double_t ext4Length = fgkmm * 40.0;
2301 Double_t ext4Twist = 66.54; //deg
2302 Double_t extWidth = fgkmm * 11.0;
2303 Double_t extHeight = fgkmm * 2.5;
2305 // position of pt1000, resistors and capacitors depends on the
2306 // bus if it's left or right one
2309 pt1000Z[0] = 66160.;
2310 pt1000Z[1] = 206200.;
2311 pt1000Z[2] = 346200.;
2312 pt1000Z[3] = 486200.;
2313 pt1000Z[4] = 626200.;
2314 pt1000Z[5] = 776200.;
2315 pt1000Z[6] = 916200.;
2316 pt1000Z[7] = 1056200.;
2317 pt1000Z[8] = 1196200.;
2318 pt1000Z[9] = 1336200.;
2329 pt1000Z[0] = 319700.;
2330 pt1000Z[1] = 459700.;
2331 pt1000Z[2] = 599700.;
2332 pt1000Z[3] = 739700.;
2333 pt1000Z[4] = 879700.;
2334 pt1000Z[5] = 1029700.;
2335 pt1000Z[6] = 1169700.;
2336 pt1000Z[7] = 1309700.;
2337 pt1000Z[8] = 1449700.;
2338 pt1000Z[9] = 1589700.;
2349 pt1000Y *= 1E-4 * fgkmm;
2350 for (i = 0; i < 10; i++) {
2351 pt1000Z[i] *= 1E-4 * fgkmm;
2353 capZ[i] *= 1E-4 * fgkmm;
2354 capY[i] *= 1E-4 * fgkmm;
2355 resZ[i] *= 1E-4 * fgkmm;
2356 resY[i] *= 1E-4 * fgkmm;
2360 Double_t &fullLength = sizes[1];
2361 Double_t &fullWidth = sizes[2];
2362 Double_t &fullThickness = sizes[0];
2363 fullLength = busLength;
2364 fullWidth = busWidth;
2365 // add the thickness of the thickest component on bus (capacity)
2366 fullThickness = busThickness + capThickness;
2369 TGeoVolumeAssembly *container = new TGeoVolumeAssembly("ITSSPDpixelBus");
2370 TGeoVolume *bus = mgr->MakeBox("ITSSPDbus", medBus, 0.5*busThickness,
2371 0.5*busWidth, 0.5*busLength);
2372 TGeoVolume *pt1000 = mgr->MakeBox("ITSSPDpt1000",medPt1000,
2373 0.5*pt1000Thickness,0.5*pt1000Width, 0.5*pt1000Length);
2374 TGeoVolume *res = mgr->MakeBox("ITSSPDresistor", medRes, 0.5*resThickness,
2375 0.5*resWidth, 0.5*resLength);
2376 TGeoVolume *cap = mgr->MakeBox("ITSSPDcapacitor", medCap, 0.5*capThickness,
2377 0.5*capWidth, 0.5*capLength);
2380 snprintf(extname,12,"Extender1l%d",ilayer);
2381 TGeoVolume *ext1 = mgr->MakeBox(extname, medExt, 0.5*extThickness, 0.5*extWidth, 0.5*ext1Length);
2382 snprintf(extname,12,"Extender2l%d",ilayer);
2383 TGeoVolume *ext2 = mgr->MakeBox(extname, medExt, 0.5*extHeight - 2.*extThickness, 0.5*extWidth, 0.5*extThickness);
2385 snprintf(extname,12,"Extender3l%d",ilayer);
2387 snprintf(extname,12,"Extender3l%d",ilayer);
2389 Double_t halflen=(0.5*ext2Length + extThickness);
2390 Double_t xprof[6],yprof[6];
2392 xprof[0] = -halflen;
2393 yprof[0] = -0.5*extThickness;
2394 xprof[1] = halflen/2;
2395 yprof[1] = yprof[0];
2396 xprof[2] = xprof[1] + 0.5*halflen*CosD(alpha);
2397 yprof[2] = yprof[1] + 0.5*halflen*SinD(alpha);
2398 xprof[3] = xprof[2] - extThickness*SinD(alpha);
2399 yprof[3] = yprof[2] + extThickness*CosD(alpha);
2400 InsidePoint(xprof[0], yprof[0], xprof[1], yprof[1], xprof[2], yprof[2],
2401 extThickness, xprof[4], yprof[4]);
2402 xprof[5] = xprof[0];
2403 yprof[5] = 0.5*extThickness;
2404 TGeoXtru *ext3sh = new TGeoXtru(2);
2405 ext3sh->DefinePolygon(6, xprof, yprof);
2406 ext3sh->DefineSection(0, -0.5*(extWidth-0.8*fgkmm));
2407 ext3sh->DefineSection(1, 0.5*(extWidth-0.8*fgkmm));
2408 ext3 = new TGeoVolume(extname, ext3sh, medExt);
2410 ext3 = mgr->MakeBox(extname, medExt, 0.5*extThickness, 0.5*(extWidth-0.8*fgkmm), 0.5*ext2LengthL2 + extThickness); // Hardcode fix of a small overlap
2411 ext4= mgr->MakeGtra("Extender4l2", medExt, 0.5*ext4Length, 0, 0, ext4Twist, 0.5*(extWidth-0.8*fgkmm), 0.5*extThickness, 0.5*extThickness, 0, 0.5*(extWidth-0.8*fgkmm), 0.5*extThickness, 0.5*extThickness, 0);
2412 ext4->SetLineColor(kGray);
2414 bus->SetLineColor(kYellow + 2);
2415 pt1000->SetLineColor(kGreen + 3);
2416 res->SetLineColor(kRed + 1);
2417 cap->SetLineColor(kBlue - 7);
2418 ext1->SetLineColor(kGray);
2419 ext2->SetLineColor(kGray);
2420 ext3->SetLineColor(kGray);
2422 // ** MOVEMENTS AND POSITIONEMENT **
2424 TGeoTranslation *trBus = new TGeoTranslation(0.5 * (busThickness -
2425 fullThickness), 0.0, 0.0);
2426 container->AddNode(bus, 1, trBus);
2427 Double_t zRef, yRef, x, y, z;
2429 zRef = -0.5*fullLength;
2430 yRef = -0.5*fullWidth;
2432 zRef = -0.5*fullLength;
2433 yRef = -0.5*fullWidth;
2436 x = 0.5*(pt1000Thickness - fullThickness) + busThickness;
2437 for (i = 0; i < 10; i++) {
2439 z = zRef + pt1000Z[i];
2440 TGeoTranslation *tr = new TGeoTranslation(x, y, z);
2441 container->AddNode(pt1000, i+1, tr);
2444 x = 0.5*(capThickness - fullThickness) + busThickness;
2445 for (i = 0; i < 2; i++) {
2448 TGeoTranslation *tr = new TGeoTranslation(x, y, z);
2449 container->AddNode(cap, i+1, tr);
2452 x = 0.5*(resThickness - fullThickness) + busThickness;
2453 for (i = 0; i < 2; i++) {
2456 TGeoTranslation *tr = new TGeoTranslation(x, y, z);
2457 container->AddNode(res, i+1, tr);
2463 y = 0.5 * (fullWidth - extWidth) - 0.1;
2464 z = 0.5 * (-fullLength + fgkmm * 10.0);
2467 y = 0.5 * (fullWidth - extWidth) - 0.1;
2468 z = 0.5 * ( fullLength - fgkmm * 10.0);
2473 y = -0.5 * (fullWidth - extWidth);
2474 z = 0.5 * (-fullLength + fgkmm * 10.0);
2477 y = -0.5 * (fullWidth - extWidth);
2478 z = 0.5 * ( fullLength - fgkmm * 10.0);
2481 x = 0.5 * (extThickness - fullThickness) + busThickness;
2482 //y = 0.5 * (fullWidth - extWidth);
2483 TGeoTranslation *trExt1 = new TGeoTranslation(x, y, z);
2485 z -= 0.5 * (ext1Length - extThickness);
2488 z += 0.5 * (ext1Length - extThickness);
2490 x += 0.5*(extHeight - 3.*extThickness);
2491 TGeoTranslation *trExt2 = new TGeoTranslation(x, y, z);
2494 z -= 0.5 * (ext2Length - extThickness) + 2.5*extThickness;
2496 z -= 0.5 * (ext2LengthL2 - extThickness) + 2.5*extThickness;
2500 z += 0.5 * (ext2Length - extThickness) + 2.5*extThickness;
2502 z += 0.5 * (ext2LengthL2 - extThickness) + 2.5*extThickness;
2504 x += 0.5*(extHeight - extThickness) - 2.*extThickness;
2505 TGeoCombiTrans *trExt3=0;
2508 trExt3 = new TGeoCombiTrans(x, y, z, new TGeoRotation("",0.,-90.,90.));
2510 trExt3 = new TGeoCombiTrans(x, y, z, new TGeoRotation("",0., 90.,90.));
2512 trExt3 = new TGeoCombiTrans(x, y, z, 0);
2513 container->AddNode(ext1, 0, trExt1);
2514 container->AddNode(ext2, 0, trExt2);
2515 container->AddNode(ext3, 0, trExt3);
2517 TGeoCombiTrans *trExt4=0;
2519 z -= ( ((TGeoBBox*)ext3->GetShape())->GetDZ() + ((TGeoGtra*)ext4->GetShape())->GetDZ() );
2520 trExt4 = new TGeoCombiTrans(x, y, z, new TGeoRotation("", ext4Twist/2,0,0));
2522 z += ( ((TGeoBBox*)ext3->GetShape())->GetDZ() + ((TGeoGtra*)ext4->GetShape())->GetDZ() );
2523 trExt4 = new TGeoCombiTrans(x, y, z, new TGeoRotation("",-ext4Twist/2,0,0));
2525 container->AddNode(ext4, 0, trExt4);
2527 sizes[3] = yRef + pt1000Y;
2528 sizes[4] = zRef + pt1000Z[2];
2529 sizes[5] = zRef + pt1000Z[7];
2534 //______________________________________________________________________
2535 TList* AliITSv11GeometrySPD::CreateConeModule(Bool_t sideC, const Double_t angrot,
2536 TGeoManager *mgr) const
2539 // Creates all services modules and places them in a TList
2540 // angrot is the rotation angle (passed as an argument to avoid
2541 // defining the same quantity in two different places)
2543 // Created: ?? ??? 2008 A. Pulvirenti
2544 // Updated: 03 May 2010 M. Sitta
2545 // Updated: 20 Jun 2010 A. Pulvirenti Optical patch panels
2546 // Updated: 22 Jun 2010 M. Sitta Fiber cables
2547 // Updated: 04 Jul 2010 M. Sitta Water cooling
2548 // Updated: 08 Jul 2010 A. Pulvirenti Air cooling on Side C
2551 TGeoMedium *medInox = GetMedium("INOX$",mgr);
2552 //TGeoMedium *medExt = GetMedium("SDDKAPTON (POLYCH2)$", mgr);
2553 TGeoMedium *medExtB = GetMedium("SPD-BUS CU KAPTON$", mgr);
2554 TGeoMedium *medExtM = GetMedium("SPD-MCM CU KAPTON$", mgr);
2555 TGeoMedium *medPlate = GetMedium("SPD C (M55J)$", mgr);
2556 TGeoMedium *medFreon = GetMedium("Freon$", mgr);
2557 TGeoMedium *medGas = GetMedium("GASEOUS FREON$", mgr);
2558 TGeoMedium *medFibs = GetMedium("SDD OPTICFIB$",mgr);
2559 TGeoMedium *medCopper= GetMedium("COPPER$",mgr);
2560 TGeoMedium *medPVC = GetMedium("PVC$",mgr);
2562 Double_t extThickness = fgkmm * 0.25;
2563 Double_t ext1Length = fgkmm * (26.7 - 10.0);
2564 // Double_t ext2Length = fgkmm * (285.0 - ext1Length + extThickness);
2565 Double_t ext2Length = fgkmm * 285.0 - ext1Length + extThickness;
2567 const Double_t kCableThickness = 1.5 *fgkmm;
2568 Double_t cableL0 = 10.0 * fgkmm;
2569 Double_t cableL1 = 340.0 * fgkmm - extThickness - ext1Length - ext2Length;
2570 Double_t cableL2 = 300.0 * fgkmm;
2571 //Double_t cableL3 = 570.0 * fgkmm;
2572 Double_t cableL3 = 57.0 * fgkmm;
2573 Double_t cableW1 = 11.0 * fgkmm;
2574 Double_t cableW2 = 30.0 * fgkmm;
2575 Double_t cableW3 = 50.0 * fgkmm;
2577 const Double_t kMCMLength = cableL0 + cableL1 + cableL2 + cableL3;
2578 const Double_t kMCMWidth = cableW1;
2579 const Double_t kMCMThickness = 1.2 *fgkmm;
2581 const Double_t kPlateLength = 200.0 *fgkmm;
2582 const Double_t kPlateWidth = 50.0 *fgkmm;
2583 const Double_t kPlateThickness = 5.0 *fgkmm;
2585 const Double_t kConeTubeRmin = 2.0 *fgkmm;
2586 const Double_t kConeTubeRmax = 3.0 *fgkmm;
2588 const Double_t kHorizTubeLen = 150.0 *fgkmm;
2589 const Double_t kYtoHalfStave = 9.5 *fgkmm;
2591 const Double_t kWaterCoolRMax = 2.6 *fgkmm;
2592 const Double_t kWaterCoolThick = 0.04 *fgkmm;
2593 const Double_t kWaterCoolLen = 250.0 *fgkmm;
2594 const Double_t kWCPlateThick = 0.5 *fgkmm;
2595 const Double_t kWCPlateWide = 33.0 *fgkmm;
2596 const Double_t kWCPlateLen = 230.0 *fgkmm;
2597 const Double_t kWCFittingRext1 = 2.4 *fgkmm;
2598 const Double_t kWCFittingRext2 = 3.7 *fgkmm;
2599 const Double_t kWCFittingRint1 = 1.9 *fgkmm;
2600 const Double_t kWCFittingRint2 = kWaterCoolRMax;
2601 const Double_t kWCFittingLen1 = 7.0 *fgkmm;
2602 const Double_t kWCFittingLen2 = 8.0 *fgkmm;
2604 const Double_t kCollWidth = 40.0 *fgkmm;
2605 const Double_t kCollLength = 60.0 *fgkmm;
2606 const Double_t kCollThickness = 10.0 *fgkmm;
2607 const Double_t kCollTubeThick = 1.0 *fgkmm;
2608 const Double_t kCollTubeRadius = 7.0 *fgkmm;
2609 const Double_t kCollTubeLength = 205.0 *fgkmm;
2611 const Double_t kOptFibDiamet = 4.5 *fgkmm;
2613 Double_t x[12], y[12];
2614 Double_t xloc, yloc, zloc;
2616 Int_t kPurple = 6; // Purple (Root does not define it)
2618 TGeoVolumeAssembly* container[5];
2620 container[0] = new TGeoVolumeAssembly("ITSSPDConeModuleC");
2622 container[0] = new TGeoVolumeAssembly("ITSSPDConeModuleA");
2623 container[1] = new TGeoVolumeAssembly("ITSSPDCoolingModuleSideA");
2624 container[2] = new TGeoVolumeAssembly("ITSSPDCoolingModuleSideC");
2625 container[3] = new TGeoVolumeAssembly("ITSSPDPatchPanelModule");
2626 container[4] = new TGeoVolumeAssembly("ITSSPDWaterCooling");
2628 // The extender on the cone as a Xtru
2630 y[0] = 0.0 + 0.5 * cableW1;
2632 x[1] = x[0] + cableL0 + cableL1 - 0.5*(cableW2 - cableW1);
2635 x[2] = x[0] + cableL0 + cableL1;
2636 y[2] = y[1] + 0.5*(cableW2 - cableW1);
2638 x[3] = x[2] + cableL2;
2641 x[4] = x[3] + 0.5*(cableW3 - cableW2);
2642 y[4] = y[3] + 0.5*(cableW3 - cableW2);
2644 x[5] = x[4] + cableL3 - 0.5*(cableW3 - cableW2);
2647 for (Int_t i = 6; i < 12; i++) {
2652 TGeoXtru *shCable = new TGeoXtru(2);
2653 shCable->DefinePolygon(12, x, y);
2654 shCable->DefineSection(0, 0.0);
2655 shCable->DefineSection(1, kCableThickness);
2657 TGeoVolume *volCable = new TGeoVolume("ITSSPDExtender", shCable, medExtB);
2658 volCable->SetLineColor(kGreen);
2660 // The MCM extender on the cone as a Xtru
2661 TGeoBBox *shMCMExt = new TGeoBBox(0.5*kMCMLength,
2665 TGeoVolume *volMCMExt = new TGeoVolume("ITSSPDExtenderMCM",
2667 volMCMExt->SetLineColor(kGreen+3);
2669 // The support plate on the cone as a composite shape
2670 Double_t thickness = kCableThickness + kMCMThickness;
2671 TGeoBBox *shOut = new TGeoBBox("ITSSPD_shape_plateout",
2674 0.5*kPlateThickness);
2675 TGeoBBox *shIn = new TGeoBBox("ITSSPD_shape_platein" ,
2680 snprintf(string, 255, "%s-%s", shOut->GetName(), shIn->GetName());
2681 TGeoCompositeShape *shPlate = new TGeoCompositeShape("ITSSPDPlate_shape",
2684 TGeoVolume *volPlate = new TGeoVolume("ITSSPDPlate",
2686 volPlate->SetLineColor(kRed);
2688 // The air cooling tubes
2689 TGeoBBox *shCollBox = new TGeoBBox("ITSSPD_shape_collector_box", 0.5*kCollLength, 0.5*kCollWidth, 0.5*kCollThickness);
2690 TGeoTube *shCollTube = new TGeoTube("ITSSPD_shape_collector_tube",kCollTubeRadius - kCollTubeThick, kCollTubeRadius, 0.5*kCollTubeLength);
2691 TGeoVolume *volCollBox = new TGeoVolume("ITSSPDCollectorBox", shCollBox, medPVC);
2692 TGeoVolume *volCollTube = new TGeoVolume("ITSSPDCollectorTube", shCollTube, medPVC);
2693 volCollBox->SetLineColor(kAzure);
2694 volCollTube->SetLineColor(kAzure);
2696 // The cooling tube on the cone as a Ctub
2697 Double_t tubeLength = shCable->GetX(5) - shCable->GetX(0) + kYtoHalfStave -0.85;
2698 TGeoCtub *shTube = new TGeoCtub(0, kConeTubeRmax, 0.5*tubeLength, 0, 360,
2699 0, SinD(angrot/2), -CosD(angrot/2),
2702 TGeoVolume *volTubeA = new TGeoVolume("ITSSPDCoolingTubeOnConeA",
2704 volTubeA->SetLineColor(kGray);
2706 TGeoVolume *volTubeC = new TGeoVolume("ITSSPDCoolingTubeOnConeC",
2708 volTubeC->SetLineColor(kGray);
2710 // The freon in the cooling tubes on the cone as a Ctub
2711 TGeoCtub *shFreon = new TGeoCtub(0, kConeTubeRmin, 0.5*tubeLength, 0, 360,
2712 0, SinD(angrot/2), -CosD(angrot/2),
2715 TGeoVolume *volFreon = new TGeoVolume("ITSSPDCoolingFreonOnCone",
2717 volFreon->SetLineColor(kPurple);
2719 TGeoVolume *volGasFr = new TGeoVolume("ITSSPDCoolingFreonGasOnCone",
2721 volGasFr->SetLineColor(kPurple);
2723 // The cooling tube inside the cylinder as a Ctub
2724 TGeoCtub *shCylTub = new TGeoCtub(0, kConeTubeRmax,
2725 0.5*kHorizTubeLen, 0, 360,
2727 0, SinD(angrot/2), CosD(angrot/2));
2729 TGeoVolume *volCylTubA = new TGeoVolume("ITSSPDCoolingTubeOnCylA",
2731 volCylTubA->SetLineColor(kGray);
2733 TGeoVolume *volCylTubC = new TGeoVolume("ITSSPDCoolingTubeOnCylC",
2735 volCylTubC->SetLineColor(kGray);
2737 // The freon in the cooling tubes in the cylinder as a Ctub
2738 TGeoCtub *shCylFr = new TGeoCtub(0, kConeTubeRmin,
2739 0.5*kHorizTubeLen, 0, 360,
2741 0, SinD(angrot/2), CosD(angrot/2));
2743 TGeoVolume *volCylFr = new TGeoVolume("ITSSPDCoolingFreonOnCyl",
2745 volCylFr->SetLineColor(kPurple);
2747 TGeoVolume *volCylGasFr = new TGeoVolume("ITSSPDCoolingFreonGasOnCyl",
2749 volCylGasFr->SetLineColor(kPurple);
2751 // The optical fibers bundle on the cone as a Tube
2752 Double_t optLength = shCable->GetX(5) - shCable->GetX(0) + kYtoHalfStave -0.85;
2753 TGeoTube *shOptFibs = new TGeoTube(0., 0.5*kOptFibDiamet, 0.5*optLength);
2755 TGeoVolume *volOptFibs = new TGeoVolume("ITSSPDOpticalFibersOnCone",
2756 shOptFibs, medFibs);
2757 volOptFibs->SetLineColor(kOrange);
2759 // The optical patch panels
2761 TGeoVolume *volPatch = CreatePatchPanel(psizes, mgr);
2763 // The water cooling tube as a Tube
2764 TGeoTube *shWatCool = new TGeoTube(kWaterCoolRMax-kWaterCoolThick,
2765 kWaterCoolRMax, kWaterCoolLen/2);
2767 TGeoVolume *volWatCool = new TGeoVolume("ITSSPDWaterCoolingOnCone",
2768 shWatCool, medInox);
2769 volWatCool->SetLineColor(kGray);
2771 // The support plate for the water tubes: a Tubs and a BBox
2772 TGeoTubeSeg *shWCPltT = new TGeoTubeSeg(kWaterCoolRMax,
2773 kWaterCoolRMax+kWCPlateThick,
2774 kWCPlateLen/2, 180., 360.);
2776 Double_t plateBoxWide = (kWCPlateWide - 2*kWaterCoolRMax)/2;
2777 TGeoBBox *shWCPltB = new TGeoBBox(plateBoxWide/2,
2781 TGeoVolume *volWCPltT = new TGeoVolume("ITSSPDWaterCoolingTubsPlate",
2782 shWCPltT, medPlate);
2783 volWCPltT->SetLineColor(kRed);
2785 TGeoVolume *volWCPltB = new TGeoVolume("ITSSPDWaterCoolingBoxPlate",
2786 shWCPltB, medPlate);
2787 volWCPltB->SetLineColor(kRed);
2789 // The fitting for the water cooling tube: a Pcon
2790 TGeoPcon *shFitt = new TGeoPcon(0., 360., 4);
2791 shFitt->Z(0) = -kWCFittingLen1;
2792 shFitt->Rmin(0) = kWCFittingRint1;
2793 shFitt->Rmax(0) = kWCFittingRext1;
2796 shFitt->Rmin(1) = kWCFittingRint1;
2797 shFitt->Rmax(1) = kWCFittingRext1;
2800 shFitt->Rmin(2) = kWCFittingRint2;
2801 shFitt->Rmax(2) = kWCFittingRext2;
2803 shFitt->Z(3) = kWCFittingLen2;
2804 shFitt->Rmin(3) = kWCFittingRint2;
2805 shFitt->Rmax(3) = kWCFittingRext2;
2807 TGeoVolume *volFitt = new TGeoVolume("ITSSPDWaterCoolingFitting",
2809 volFitt->SetLineColor(kOrange);
2811 // Now place everything in the containers
2812 volTubeA->AddNode(volGasFr, 1, 0);
2813 volTubeC->AddNode(volFreon, 1, 0);
2815 volCylTubA->AddNode(volCylGasFr, 1, 0);
2816 volCylTubC->AddNode(volCylFr , 1, 0);
2818 container[0]->AddNode(volCable, 1, 0);
2820 xloc = shMCMExt->GetDX() - cableL0;
2821 zloc = shMCMExt->GetDZ();
2822 container[0]->AddNode(volMCMExt, 1,
2823 new TGeoTranslation( xloc, 0.,-zloc));
2825 xloc = shMCMExt->GetDX();
2826 zloc = shCable->GetZ(1)/2 - shMCMExt->GetDZ();
2827 container[0]->AddNode(volPlate, 1,
2828 new TGeoTranslation( xloc, 0., zloc));
2830 TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
2831 rot2->SetName("rotPatch");
2832 rot2->RotateX(90.0);
2833 rot2->RotateY(163.0);
2834 //rot2->RotateZ(132.5);
2836 // add collectors only on side C
2839 TGeoTranslation *trCollBox = new TGeoTranslation(xloc - 0.5*kPlateLength + 0.5*kCollLength, 0.0, +0.5*(kPlateThickness+1.1*kCollThickness));
2840 TGeoRotation *rotCollTube = new TGeoRotation(*gGeoIdentity);
2841 rotCollTube->RotateY(90.0);
2842 TGeoCombiTrans *trCollTube = new TGeoCombiTrans(xloc + 0.5*kCollTubeLength - (0.5*kPlateLength - kCollLength), 0.0, +0.5*(kPlateThickness+2.0*kCollTubeRadius+kCollTubeThick), rotCollTube);
2843 container[0]->AddNode(volCollBox, 1, trCollBox);
2844 container[0]->AddNode(volCollTube, 1, trCollTube);
2847 Double_t dxPatch = 2.75;
2848 Double_t dzPatch = 2.8;
2849 TGeoCombiTrans *tr2 = new TGeoCombiTrans(1.7*ext2Length - dxPatch, 0.0, dzPatch, rot2);
2850 container[3]->AddNode(volPatch, 0, tr2);
2852 xloc = shTube->GetRmax();
2853 yloc = shTube->GetRmax();
2854 zloc = shTube->GetDz() - shTube->GetRmax() - kYtoHalfStave;
2855 container[1]->AddNode(volTubeA, 1,
2856 new TGeoTranslation(-xloc, -yloc, zloc));
2857 container[2]->AddNode(volTubeC, 1,
2858 new TGeoTranslation(-xloc, -yloc, zloc));
2860 xloc = shTube->GetRmax();
2861 yloc = (shCylTub->GetDz())*SinD(angrot) - shTube->GetRmax();
2862 zloc = (shCylTub->GetDz())*CosD(angrot) + shTube->GetRmax() +kYtoHalfStave;
2863 container[1]->AddNode(volCylTubA, 1,
2864 new TGeoCombiTrans(-xloc, yloc,-zloc,
2865 new TGeoRotation("",0.,angrot,0.)));
2866 container[2]->AddNode(volCylTubC, 1,
2867 new TGeoCombiTrans(-xloc, yloc,-zloc,
2868 new TGeoRotation("",0.,angrot,0.)));
2870 xloc = shOptFibs->GetRmax() + 2*shTube->GetRmax();
2871 yloc = 1.6*shOptFibs->GetRmax();
2872 zloc = shOptFibs->GetDZ() - shTube->GetRmax() - kYtoHalfStave;
2873 container[1]->AddNode(volOptFibs, 1,
2874 new TGeoTranslation(-xloc, -yloc, zloc));
2875 container[2]->AddNode(volOptFibs, 1,
2876 new TGeoTranslation(-xloc, -yloc, zloc));
2878 yloc = shWatCool->GetRmax();
2879 zloc = (2*shTube->GetDz() - shTube->GetRmax() - kYtoHalfStave)/2;
2880 container[4]->AddNode(volWatCool, 1,
2881 new TGeoTranslation(0, -yloc, zloc));
2883 container[4]->AddNode(volWCPltT, 1,
2884 new TGeoTranslation(0, -yloc, zloc));
2886 yloc -= shWCPltB->GetDY();
2887 xloc = shWatCool->GetRmax() + shWCPltB->GetDX();
2888 container[4]->AddNode(volWCPltB, 1,
2889 new TGeoTranslation( xloc, -yloc, zloc));
2890 container[4]->AddNode(volWCPltB, 2,
2891 new TGeoTranslation(-xloc, -yloc, zloc));
2893 yloc = shWatCool->GetRmax();
2894 zloc -= shWatCool->GetDz();
2895 container[4]->AddNode(volFitt, 1,
2896 new TGeoTranslation(0, -yloc, zloc));
2898 // Finally create the list of assemblies and return it to the caller
2899 TList* conemodulelist = new TList();
2900 conemodulelist->Add(container[0]);
2901 conemodulelist->Add(container[1]);
2902 conemodulelist->Add(container[2]);
2903 conemodulelist->Add(container[3]);
2904 conemodulelist->Add(container[4]);
2906 return conemodulelist;
2909 //______________________________________________________________________
2910 void AliITSv11GeometrySPD::CreateCones(TGeoVolume *moth) const
2913 // Places all services modules in the mother reference system
2915 // Created: ?? ??? 2008 Alberto Pulvirenti
2916 // Updated: 03 May 2010 Mario Sitta
2917 // Updated: 04 Jul 2010 Mario Sitta Water cooling
2920 const Int_t kNumberOfModules = 10;
2922 const Double_t kInnerRadius = 80.775*fgkmm;
2923 const Double_t kZTrans = 451.800*fgkmm;
2924 const Double_t kAlphaRot = 46.500*fgkDegree;
2925 const Double_t kAlphaSpaceCool = 9.200*fgkDegree;
2927 TList* modulelistA = CreateConeModule(kFALSE, 90-kAlphaRot);
2928 TList* modulelistC = CreateConeModule(kTRUE , 90-kAlphaRot);
2929 TList* &modulelist = modulelistC;
2930 TGeoVolumeAssembly* module, *moduleA, *moduleC;
2932 Double_t xloc, yloc, zloc;
2934 //Double_t angle[10] = {18., 54., 90., 126., 162., -18., -54., -90., -126., -162.};
2935 // anglem for cone modules (cables and cooling tubes)
2936 // anglep for pathc panels
2937 Double_t anglem[10] = {18., 54., 90., 126., 162., 198., 234., 270., 306., 342.};
2938 Double_t anglep[10] = {18., 62., 90., 115., 162., 198., 242., 270., 295., 342.};
2939 // Double_t angle1m[10] = {23., 53., 90., 127., 157., 203.0, 233.0, 270.0, 307.0, 337.0};
2940 // Double_t angle2m[10] = {18., 53., 90., 126., 162., 198.0, 233.0, 270.0, 309.0, 342.0};
2941 // Double_t angle1c[10] = {23., 53., 90., 124., 157., 203.0, 233.0, 270.0, 304.0, 337.0};
2942 // Double_t angle2c[10] = {18., 44., 90., 126., 162., 198.0, 223.0, 270.0, 309.0, 342.0};
2944 // First add the cables
2945 moduleA = (TGeoVolumeAssembly*)modulelistA->At(0);
2946 moduleC = (TGeoVolumeAssembly*)modulelistC->At(0);
2947 for (Int_t i = 0; i < kNumberOfModules; i++) {
2948 TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
2949 rot1->RotateY(-kAlphaRot);
2950 rot1->RotateZ(anglem[i]);
2951 xloc = kInnerRadius*CosD(anglem[i]);
2952 yloc = kInnerRadius*SinD(anglem[i]);
2954 moth->AddNode(moduleA, 2*i+2,
2955 new TGeoCombiTrans( xloc, yloc, zloc, rot1));
2957 TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
2958 rot2->RotateY(180.-kAlphaRot);
2959 rot2->RotateZ(anglem[i]);
2960 xloc = kInnerRadius*CosD(anglem[i]);
2961 yloc = kInnerRadius*SinD(anglem[i]);
2963 moth->AddNode(moduleC, 2*i+1,
2964 new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
2967 // Then the cooling tubes on Side A
2968 module = (TGeoVolumeAssembly*)modulelist->At(1);
2970 for (Int_t i = 0; i < kNumberOfModules; i++) {
2971 anglec = anglem[i] + kAlphaSpaceCool;
2972 TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
2973 rot1->RotateX(-90.0+kAlphaRot-0.04); // 0.04 fixes small overlap
2974 rot1->RotateZ(-90.0+anglec);
2975 xloc = kInnerRadius*CosD(anglec);
2976 yloc = kInnerRadius*SinD(anglec);
2977 zloc = kZTrans+0.162; // 0.162 fixes small overlap
2978 moth->AddNode(module, 2*i+2,
2979 new TGeoCombiTrans( xloc, yloc, zloc, rot1));
2982 // And the cooling tubes on Side C
2983 module = (TGeoVolumeAssembly*)modulelist->At(2);
2984 for (Int_t i = 0; i < kNumberOfModules; i++) {
2985 anglec = anglem[i] - kAlphaSpaceCool;
2986 TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
2987 rot2->RotateX(-90.0+kAlphaRot-0.04); // 0.04 fixes small overlap
2988 rot2->RotateY(180.);
2989 rot2->RotateZ(90.0+anglec);
2990 xloc = kInnerRadius*CosD(anglec);
2991 yloc = kInnerRadius*SinD(anglec);
2992 zloc = kZTrans+0.162; // 0.162 fixes small overlap
2993 moth->AddNode(module, 2*i+1,
2994 new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
2997 // Then the water cooling tubes
2998 module = (TGeoVolumeAssembly*)modulelist->At(4);
2999 for (Int_t i = 1; i < kNumberOfModules; i++) { // i = 1,2,...,9
3000 if (i != 5) { // There is no tube in this position
3001 anglec = (anglem[i-1]+anglem[i])/2;
3002 TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
3003 rot1->RotateX(-90.0+kAlphaRot);
3004 rot1->RotateZ(-90.0+anglec);
3005 xloc = kInnerRadius*CosD(anglec);
3006 yloc = kInnerRadius*SinD(anglec);
3008 moth->AddNode(module, 2*i+2,
3009 new TGeoCombiTrans( xloc, yloc, zloc, rot1));
3011 TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
3012 rot2->RotateX(-90.0+kAlphaRot);
3013 rot2->RotateY(180.);
3014 rot2->RotateZ(90.0+anglec);
3015 xloc = kInnerRadius*CosD(anglec);
3016 yloc = kInnerRadius*SinD(anglec);
3018 moth->AddNode(module, 2*i+1,
3019 new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
3023 // Finally the optical patch panels
3024 module = (TGeoVolumeAssembly*)modulelist->At(3);
3025 for (Int_t i = 0; i < kNumberOfModules; i++) {
3026 TGeoRotation *rot1 = new TGeoRotation(*gGeoIdentity);
3027 rot1->RotateY(-kAlphaRot);
3028 rot1->RotateZ(anglep[i]);
3029 xloc = kInnerRadius*CosD(anglep[i]);
3030 yloc = kInnerRadius*SinD(anglep[i]);
3032 moth->AddNode(module, 2*i+2,
3033 new TGeoCombiTrans( xloc, yloc, zloc, rot1));
3035 TGeoRotation *rot2 = new TGeoRotation(*gGeoIdentity);
3036 rot2->RotateY(180.-kAlphaRot);
3037 rot2->RotateZ(anglep[i]);
3038 xloc = kInnerRadius*CosD(anglep[i]);
3039 yloc = kInnerRadius*SinD(anglep[i]);
3041 moth->AddNode(module, 2*i+1,
3042 new TGeoCombiTrans(-xloc,-yloc,-zloc, rot2));
3048 //______________________________________________________________________
3049 void AliITSv11GeometrySPD::CreateServices(TGeoVolume *moth) const
3052 // New method to implement SPD services
3054 // Created: 25 Jul 2012 Mario Sitta
3056 // Data provided by C.Gargiulo from CAD
3058 // Cooling manifolds
3059 const Double_t kCoolManifWidth = fgkmm * 22.0;
3060 const Double_t kCoolManifLength = fgkmm * 50.0;
3061 const Double_t kCoolManifThick = fgkmm * 7.0;
3062 const Double_t kCoolManifFitR1out = fgkmm * 4.0;
3063 const Double_t kCoolManifFitH1 = fgkmm * 2.5;
3064 const Double_t kCoolManifFitR2out = fgkmm * 4.0;
3065 const Double_t kCoolManifFitR2in = fgkmm * 3.2;
3066 const Double_t kCoolManifFitH2 = fgkmm * 7.0;
3067 const Double_t kCoolManifFitZPos = fgkmm * 2.0; // TO BE CHECKED!
3068 const Double_t kCoolManifCollR1 = fgkmm * 3.0;
3069 const Double_t kCoolManifCollH1 = fgkmm * 2.5;
3070 const Double_t kCoolManifCollR2 = fgkmm * 1.5;
3071 const Double_t kCoolManifCollH2 = fgkmm * 5.0;
3072 const Double_t kCoolManifCollXPos = fgkmm * 5.0;
3073 const Double_t kCoolManifCollDZ = fgkmm * 13.0;
3074 const Double_t kCoolManifCollZ0 = fgkmm * 9.0;
3076 const Double_t kCoolManifRPosCAD = fgkmm * 76.2;
3077 const Double_t kCoolManifZPos = fgkcm * 33.97;// 34.0 - 0.03 toll.
3078 // Manifold supports
3079 const Double_t kManifSuppWidth = fgkmm * 24.0; // TO BE CHECKED!
3080 const Double_t kManifSuppLen1 = fgkmm * 17.9;
3081 const Double_t kManifSuppLen2 = fgkmm * 54.2;
3082 const Double_t kManifSuppLen3 = fgkmm * 7.9;
3083 const Double_t kManifSuppThick = fgkmm * 1.5;
3084 const Double_t kSuppScrewXPos = fgkmm * 4.0;
3085 const Double_t kSuppScrewZPos = fgkmm * 3.0;
3086 const Double_t kRThermalShield = fgkcm * 9.9255; // MUST match with GeometrySupport
3088 const Double_t kSectSuppWidth = fgkmm * 15.0;
3089 const Double_t kSectSuppLen1 = fgkmm * 16.9; // TO BE CHECKED!
3090 const Double_t kSectSuppLen2 = fgkmm * 35.1; // TO BE CHECKED!
3091 const Double_t kSectSuppThick = fgkmm * 1.5;
3092 const Double_t kSectSuppDepth = fgkmm * 17.78; // MUST match with GeometrySupport
3093 const Double_t kSectScrewZPos = fgkmm * 5.1; // TO BE CHECKED!
3095 const Double_t kSectSuppZPos = fgkcm * 26.5;
3097 const Double_t kSectClipLength = fgkmm * 30.0;
3098 const Double_t kSectClipWidth = fgkmm * 28.53;
3099 const Double_t kSectClipThick1 = fgkmm * 2.0;
3100 const Double_t kSectClipThick2 = fgkmm * 0.715;
3101 const Double_t kSectClipInStave = fgkmm * 11.0; // Tuned
3102 const Double_t kSectClipAngle = 29.0; // Degree. Tuned
3104 const Double_t kScrewM3Diam = fgkmm * 3.0;
3105 const Double_t kScrewM3HeadThick = fgkmm * 2.0;
3106 const Double_t kScrewM3HeadRmin = fgkmm * 1.5;
3107 const Double_t kScrewM3HeadRmax = fgkmm * 2.5;
3108 const Double_t kScrewM3OutManifH = fgkmm * 1.5;
3109 // Central set pin (in sector support)
3110 const Double_t kSetPinDiam = fgkmm * 6.0;
3111 const Double_t kSetPinHeadDiam = fgkmm * 8.0;
3112 const Double_t kSetPinHeadRmin = fgkmm * 1.5;
3113 const Double_t kSetPinHeadThick = fgkmm * 1.5;
3114 const Double_t kSetPinOutClipH = fgkmm * 1.0;
3116 const Double_t kCoolPipeSideARin = fgkmm * 1.5;
3117 const Double_t kCoolPipeSideARout = fgkmm * 1.8;
3118 const Double_t kCoolPipeSideCRin = fgkmm * 0.5;
3119 const Double_t kCoolPipeSideCRout = fgkmm * 0.85;
3120 const Double_t kCoolPipeHeight[3] = {11.0, 14.0, 18.0}; // TO BE CHECKED!
3121 const Double_t kCoolPipeRadius[3] = {12.0, 14.0, 15.0}; // TO BE CHECKED!
3122 const Double_t kCoolPipeZSPD = fgkcm * 8.45; // TO BE CHECKED!
3124 Int_t kPurple = 6; // Purple (Root does not define it)
3127 Double_t xprof[12], yprof[12];
3128 Double_t radius, theta;
3129 Double_t xpos, ypos, zpos;
3133 // The cooling manifold: an Assembly
3134 TGeoVolumeAssembly *coolmanifA = new TGeoVolumeAssembly("ITSSPDCoolManifSideA");
3135 TGeoVolumeAssembly *coolmanifC = new TGeoVolumeAssembly("ITSSPDCoolManifSideC");
3137 // The various parts of the manifold
3138 TGeoBBox *manifblksh = new TGeoBBox(kCoolManifWidth/2,
3140 kCoolManifLength/2);
3142 TGeoBBox *manifinscubesh = new TGeoBBox(kCoolManifFitR2out,
3144 kCoolManifFitR2out);
3146 TGeoTube *manifinscyl1sh = new TGeoTube(0, // TO BE CHECKED!
3150 TGeoTube *manifinscyl2sh = new TGeoTube(kCoolManifFitR2in,
3154 TGeoTube *manifcollcyl1sh = new TGeoTube(0,
3156 kCoolManifCollH1/2);
3158 TGeoTube *manifcollcyl2sh = new TGeoTube(0,
3160 kCoolManifCollH2/2);
3162 // The cooling manifold supports
3163 const Double_t kCoolManifRPos = kCoolManifRPosCAD +
3164 (manifinscubesh->GetDY() +
3165 2*manifinscyl1sh->GetDz() +
3166 manifblksh->GetDY() );
3168 const Double_t kManifSuppDepth = kRThermalShield -
3169 (kCoolManifRPos + manifblksh->GetDY());
3171 TGeoXtru *suppmanifsh = new TGeoXtru(2);
3173 xprof[ 0] = kManifSuppLen2/2 + kManifSuppThick;
3175 xprof[ 1] = xprof[0];
3176 yprof[ 1] = kManifSuppDepth;
3177 xprof[ 2] = kManifSuppLen2/2 + kManifSuppLen3;
3178 yprof[ 2] = yprof[1];
3179 xprof[ 3] = xprof[2];
3180 yprof[ 3] = yprof[2] + kManifSuppThick;
3181 xprof[ 4] = kManifSuppLen2/2;
3182 yprof[ 4] = yprof[3];
3183 xprof[ 5] = xprof[4];
3184 yprof[ 5] = kManifSuppThick;
3185 xprof[ 6] = -xprof[5];
3186 yprof[ 6] = yprof[5];
3187 xprof[ 7] = -xprof[4];
3188 yprof[ 7] = yprof[4];
3189 xprof[ 8] = -(kManifSuppLen2/2 + kManifSuppLen1);
3190 yprof[ 8] = yprof[3];
3191 xprof[ 9] = xprof[8];
3192 yprof[ 9] = yprof[2];
3193 xprof[10] = -xprof[1];
3194 yprof[10] = yprof[1];
3195 xprof[11] = -xprof[0];
3196 yprof[11] = yprof[0];
3198 suppmanifsh->DefinePolygon(12,xprof,yprof);
3199 suppmanifsh->DefineSection(0,-kManifSuppWidth/2);
3200 suppmanifsh->DefineSection(1, kManifSuppWidth/2);
3202 // The screw head and body
3203 TGeoTube *suppscrewbodysh = new TGeoTube(0, kScrewM3Diam/2,
3206 TGeoPcon *suppscrewheadsh = new TGeoPcon(0, 360, 4);
3207 suppscrewheadsh->DefineSection(0,-kScrewM3HeadThick/2,0, kScrewM3HeadRmax);
3208 suppscrewheadsh->DefineSection(1, 0, 0, kScrewM3HeadRmax);
3209 suppscrewheadsh->DefineSection(2, 0, kScrewM3HeadRmin, kScrewM3HeadRmax);
3210 suppscrewheadsh->DefineSection(3, kScrewM3HeadThick/2,
3211 kScrewM3HeadRmin, kScrewM3HeadRmax);
3213 TGeoTube *clipscrewbodysh = new TGeoTube(0, kScrewM3Diam/2,
3216 // The screw segment below the manifold and the sector clip
3217 TGeoTube *screwoutmanifsh = new TGeoTube(0, kScrewM3Diam/2,
3218 kScrewM3OutManifH/2);
3220 // The sector supports
3221 TGeoXtru *suppsectsh = new TGeoXtru(2);
3223 xprof[ 0] = kSectSuppLen2/2 + kSectSuppThick;
3225 xprof[ 1] = xprof[0];
3226 yprof[ 1] = kSectSuppDepth;
3227 xprof[ 2] = kSectSuppLen2/2 + kSectSuppLen1;
3228 yprof[ 2] = yprof[1];
3229 xprof[ 3] = xprof[2];
3230 yprof[ 3] = yprof[2] + kSectSuppThick;
3231 xprof[ 4] = kSectSuppLen2/2;
3232 yprof[ 4] = yprof[3];
3233 xprof[ 5] = xprof[4];
3234 yprof[ 5] = kSectSuppThick;
3235 xprof[ 6] = -xprof[5];
3236 yprof[ 6] = yprof[5];
3237 xprof[ 7] = -xprof[4];
3238 yprof[ 7] = yprof[4];
3239 xprof[ 8] = -xprof[3];
3240 yprof[ 8] = yprof[3];
3241 xprof[ 9] = -xprof[2];
3242 yprof[ 9] = yprof[2];
3243 xprof[10] = -xprof[1];
3244 yprof[10] = yprof[1];
3245 xprof[11] = -xprof[0];
3246 yprof[11] = yprof[0];
3248 suppsectsh->DefinePolygon(12,xprof,yprof);
3249 suppsectsh->DefineSection(0,-kSectSuppWidth/2);
3250 suppsectsh->DefineSection(1, kSectSuppWidth/2);
3253 TGeoXtru *sectclipsh = new TGeoXtru(2);
3255 xprof[ 0] = kSectClipWidth/2;
3257 xprof[ 1] = -kSectClipWidth/2;
3258 yprof[ 1] = yprof[0];
3259 xprof[ 2] = xprof[1];
3260 yprof[ 2] = -kSectClipThick1;
3261 xprof[ 3] = kSectClipWidth/2 - kSectClipThick2;
3262 yprof[ 3] = yprof[2];
3263 xprof[ 4] = xprof[3] + kSectClipInStave*SinD(kSectClipAngle);
3264 yprof[ 4] = -kSectClipInStave*CosD(kSectClipAngle);
3265 xprof[ 5] = xprof[4] + kSectClipThick2*CosD(kSectClipAngle);
3266 yprof[ 5] = yprof[4] + kSectClipThick2*SinD(kSectClipAngle);
3268 sectclipsh->DefinePolygon(6,xprof,yprof);
3269 sectclipsh->DefineSection(0,-kSectClipLength/2);
3270 sectclipsh->DefineSection(1, kSectClipLength/2);
3272 // The central set pin head and body
3273 TGeoTube *setpinbodysh = new TGeoTube(0, kSetPinDiam/2,
3276 TGeoTube *setpinheadsh = new TGeoTube(kSetPinHeadRmin, kSetPinHeadDiam/2,
3277 kSetPinHeadThick/2);
3279 TGeoTube *pinclipbodysh = new TGeoTube(0, kSetPinDiam/2,
3282 // The set pin segment below the sector clip
3283 TGeoTube *setpinoutclipsh = new TGeoTube(0, kSetPinDiam/2,
3287 // We have the shapes: now create the real volumes
3288 TGeoMedium *medInox = GetMedium("INOX$");
3289 TGeoMedium *medCu = GetMedium("COPPER$");
3290 TGeoMedium *medFreon = GetMedium("Freon$");
3291 TGeoMedium *medGasFr = GetMedium("GASEOUS FREON$");
3292 TGeoMedium *medSPDcf = GetMedium("SPD shield$");
3294 TGeoVolume *manifblk = new TGeoVolume("ITSSPDBlkManif",
3295 manifblksh,medInox);
3296 manifblk->SetLineColor(kGreen+2);
3298 TGeoVolume *manifinscube = new TGeoVolume("ITSSPDInsCubeManif",
3299 manifinscubesh,medCu);
3300 manifinscube->SetLineColor(kYellow);
3302 TGeoVolume *manifinscyl1 = new TGeoVolume("ITSSPDInsCyl1Manif",
3303 manifinscyl1sh,medCu);
3304 manifinscyl1->SetLineColor(kYellow);
3306 TGeoVolume *manifinscyl2 = new TGeoVolume("ITSSPDInsCyl2Manif",
3307 manifinscyl2sh,medCu);
3308 manifinscyl2->SetLineColor(kYellow);
3310 TGeoVolume *manifcollcyl1 = new TGeoVolume("ITSSPDCollCyl1Manif",
3311 manifcollcyl1sh,medCu);
3312 manifcollcyl1->SetLineColor(kYellow);
3314 TGeoVolume *manifcollcyl2 = new TGeoVolume("ITSSPDCollCyl2Manif",
3315 manifcollcyl2sh,medCu);
3316 manifcollcyl2->SetLineColor(kYellow);
3318 TGeoVolume *suppmanif = new TGeoVolume("ITSSPDCoolManifSupp",
3319 suppmanifsh,medSPDcf);
3320 suppmanif->SetLineColor(7);
3322 TGeoVolume *suppscrewbody = new TGeoVolume("ITSSPDSuppScrewBody",
3323 suppscrewbodysh,medInox);
3324 suppscrewbody->SetLineColor(kGray);
3326 xpos = kCoolManifLength/2 - kSuppScrewZPos;
3327 ypos = suppscrewbodysh->GetDz();
3328 zpos = kCoolManifWidth/2 - kSuppScrewXPos;
3329 suppmanif->AddNode(suppscrewbody, 1, new TGeoCombiTrans( xpos, ypos, zpos,
3330 new TGeoRotation("",0,90,0)));
3331 suppmanif->AddNode(suppscrewbody, 2, new TGeoCombiTrans( xpos, ypos,-zpos,
3332 new TGeoRotation("",0,90,0)));
3333 suppmanif->AddNode(suppscrewbody, 3, new TGeoCombiTrans(-xpos, ypos, zpos,
3334 new TGeoRotation("",0,90,0)));
3335 suppmanif->AddNode(suppscrewbody, 4, new TGeoCombiTrans(-xpos, ypos,-zpos,
3336 new TGeoRotation("",0,90,0)));
3338 TGeoVolume *suppscrewhead = new TGeoVolume("ITSSPDSuppScrewHead",
3339 suppscrewheadsh,medInox);
3340 suppscrewhead->SetLineColor(kGray);
3342 TGeoVolume *screwoutmanif = new TGeoVolume("ITSSPDSuppScrewOutManif",
3343 screwoutmanifsh,medInox);
3344 screwoutmanif->SetLineColor(kGray);
3346 TGeoVolume *suppsect = new TGeoVolume("ITSSPDCoolSectorSupp",
3347 suppsectsh,medSPDcf);
3348 suppsect->SetLineColor(7);
3350 xpos = kSectSuppLen2/2 - kSectScrewZPos;
3351 ypos = suppscrewbodysh->GetDz();
3352 suppsect->AddNode(suppscrewbody, 1, new TGeoCombiTrans( xpos, ypos, 0,
3353 new TGeoRotation("",0,90,0)));
3354 suppsect->AddNode(suppscrewbody, 2, new TGeoCombiTrans(-xpos, ypos, 0,
3355 new TGeoRotation("",0,90,0)));
3357 TGeoVolume *setpinbody = new TGeoVolume("ITSSPDSetPinBody",
3358 setpinbodysh,medInox);
3359 setpinbody->SetLineColor(kGray);
3361 ypos = setpinbodysh->GetDz();
3362 suppsect->AddNode(setpinbody, 1, new TGeoCombiTrans( 0, ypos, 0,
3363 new TGeoRotation("",0,90,0)));
3365 TGeoVolume *setpinhead = new TGeoVolume("ITSSPDSetPinHead",
3366 setpinheadsh,medInox);
3367 setpinhead->SetLineColor(kGray);
3369 TGeoVolume *sectclip = new TGeoVolume("ITSSPDCoolSectorClip",
3370 sectclipsh,medSPDcf);
3371 sectclip->SetLineColor(7);
3373 TGeoVolume *clipscrewbody = new TGeoVolume("ITSSPDClipScrewBody",
3374 clipscrewbodysh,medInox);
3375 clipscrewbody->SetLineColor(kGray);
3377 ypos = -clipscrewbodysh->GetDz();
3378 zpos = kSectSuppLen2/2 - kSectScrewZPos;
3379 sectclip->AddNode(clipscrewbody, 1, new TGeoCombiTrans( 0, ypos, zpos,
3380 new TGeoRotation("",0,90,0)));
3381 sectclip->AddNode(clipscrewbody, 2, new TGeoCombiTrans( 0, ypos,-zpos,
3382 new TGeoRotation("",0,90,0)));
3384 TGeoVolume *pinclipbody = new TGeoVolume("ITSSPDClipPinBody",
3385 pinclipbodysh,medInox);
3386 pinclipbody->SetLineColor(kGray);
3388 ypos = -pinclipbodysh->GetDz();
3389 sectclip->AddNode(pinclipbody, 1, new TGeoCombiTrans( 0, ypos, 0,
3390 new TGeoRotation("",0,90,0)));
3392 TGeoVolume *setpinoutclip = new TGeoVolume("ITSSPDSetPinOutClip",
3393 setpinoutclipsh,medInox);
3394 setpinoutclip->SetLineColor(kGray);
3397 // Add all volumes in the assemblies
3398 coolmanifA->AddNode(manifblk,1,0);
3399 coolmanifC->AddNode(manifblk,1,0);
3401 ypos = manifblksh->GetDY() + manifinscyl1sh->GetDz();
3402 zpos = manifblksh->GetDZ() - manifinscyl1sh->GetRmax() - kCoolManifFitZPos;
3403 coolmanifA->AddNode(manifinscyl1, 1, new TGeoCombiTrans(0, -ypos, zpos,
3404 new TGeoRotation("",0,90,0)));
3405 coolmanifC->AddNode(manifinscyl1, 1, new TGeoCombiTrans(0, -ypos, zpos,
3406 new TGeoRotation("",0,90,0)));
3408 ypos += (manifinscyl1sh->GetDz() + manifinscubesh->GetDY());
3409 coolmanifA->AddNode(manifinscube, 1, new TGeoTranslation(0, -ypos, zpos));
3410 coolmanifC->AddNode(manifinscube, 1, new TGeoTranslation(0, -ypos, zpos));
3412 zpos += (manifinscubesh->GetDZ() + manifinscyl2sh->GetDz());
3413 coolmanifA->AddNode(manifinscyl2, 1, new TGeoTranslation(0, -ypos, zpos));
3414 coolmanifC->AddNode(manifinscyl2, 1, new TGeoTranslation(0, -ypos, zpos));
3416 ypos = manifblksh->GetDY();
3417 coolmanifA->AddNode(suppmanif, 1, new TGeoCombiTrans(0, ypos, 0,
3418 new TGeoRotation("",-90,90,90)));
3419 coolmanifC->AddNode(suppmanif, 1, new TGeoCombiTrans(0, ypos, 0,
3420 new TGeoRotation("",-90,90,90)));
3422 ypos += (kManifSuppThick + kScrewM3HeadThick/2);
3423 xpos = kCoolManifWidth/2 - kSuppScrewXPos;
3424 zpos = kCoolManifLength/2 - kSuppScrewZPos;
3425 coolmanifA->AddNode(suppscrewhead, 1, new TGeoCombiTrans( xpos, ypos, zpos,
3426 new TGeoRotation("",0,-90,0)));
3427 coolmanifC->AddNode(suppscrewhead, 1, new TGeoCombiTrans( xpos, ypos, zpos,
3428 new TGeoRotation("",0,-90,0)));
3429 coolmanifA->AddNode(suppscrewhead, 2, new TGeoCombiTrans( xpos, ypos,-zpos,
3430 new TGeoRotation("",0,-90,0)));
3431 coolmanifC->AddNode(suppscrewhead, 2, new TGeoCombiTrans( xpos, ypos,-zpos,
3432 new TGeoRotation("",0,-90,0)));
3433 coolmanifA->AddNode(suppscrewhead, 3, new TGeoCombiTrans(-xpos, ypos, zpos,
3434 new TGeoRotation("",0,-90,0)));
3435 coolmanifC->AddNode(suppscrewhead, 3, new TGeoCombiTrans(-xpos, ypos, zpos,
3436 new TGeoRotation("",0,-90,0)));
3437 coolmanifA->AddNode(suppscrewhead, 4, new TGeoCombiTrans(-xpos, ypos,-zpos,
3438 new TGeoRotation("",0,-90,0)));
3439 coolmanifC->AddNode(suppscrewhead, 4, new TGeoCombiTrans(-xpos, ypos,-zpos,
3440 new TGeoRotation("",0,-90,0)));
3442 ypos = manifblksh->GetDY() + screwoutmanifsh->GetDz();
3443 coolmanifA->AddNode(screwoutmanif, 1, new TGeoCombiTrans( xpos,-ypos, zpos,
3444 new TGeoRotation("",0,-90,0)));
3445 coolmanifC->AddNode(screwoutmanif, 1, new TGeoCombiTrans( xpos,-ypos, zpos,
3446 new TGeoRotation("",0,-90,0)));
3447 coolmanifA->AddNode(screwoutmanif, 2, new TGeoCombiTrans( xpos,-ypos,-zpos,
3448 new TGeoRotation("",0,-90,0)));
3449 coolmanifC->AddNode(screwoutmanif, 2, new TGeoCombiTrans( xpos,-ypos,-zpos,
3450 new TGeoRotation("",0,-90,0)));
3451 coolmanifA->AddNode(screwoutmanif, 3, new TGeoCombiTrans(-xpos,-ypos, zpos,
3452 new TGeoRotation("",0,-90,0)));
3453 coolmanifC->AddNode(screwoutmanif, 3, new TGeoCombiTrans(-xpos,-ypos, zpos,
3454 new TGeoRotation("",0,-90,0)));
3455 coolmanifA->AddNode(screwoutmanif, 4, new TGeoCombiTrans(-xpos,-ypos,-zpos,
3456 new TGeoRotation("",0,-90,0)));
3457 coolmanifC->AddNode(screwoutmanif, 4, new TGeoCombiTrans(-xpos,-ypos,-zpos,
3458 new TGeoRotation("",0,-90,0)));
3460 ypos = manifblksh->GetDY() + suppmanifsh->GetY(1) - suppsectsh->GetY(1);
3461 zpos = manifblksh->GetDZ() + (kCoolManifZPos - kSectSuppZPos);
3462 coolmanifA->AddNode(suppsect, 1, new TGeoCombiTrans(0, ypos,-zpos,
3463 new TGeoRotation("",-90,90,90)));
3464 coolmanifC->AddNode(suppsect, 1, new TGeoCombiTrans(0, ypos,-zpos,
3465 new TGeoRotation("",-90,90,90)));
3467 tmp = ypos; // Save it to avoid recomputing
3469 ypos += (kSectSuppThick + kScrewM3HeadThick/2);
3470 zpos += (kSectSuppLen2/2 - kSectScrewZPos);
3471 coolmanifA->AddNode(suppscrewhead, 5, new TGeoCombiTrans( 0, ypos,-zpos,
3472 new TGeoRotation("",0,-90,0)));
3473 coolmanifC->AddNode(suppscrewhead, 5, new TGeoCombiTrans( 0, ypos,-zpos,
3474 new TGeoRotation("",0,-90,0)));
3475 zpos -= 2*(kSectSuppLen2/2 - kSectScrewZPos);
3476 coolmanifA->AddNode(suppscrewhead, 6, new TGeoCombiTrans( 0, ypos,-zpos,
3477 new TGeoRotation("",0,-90,0)));
3478 coolmanifC->AddNode(suppscrewhead, 6, new TGeoCombiTrans( 0, ypos,-zpos,
3479 new TGeoRotation("",0,-90,0)));
3481 ypos = tmp + kSectSuppThick + kSetPinHeadThick/2;
3482 zpos += (kSectSuppLen2/2 - kSectScrewZPos);
3483 coolmanifA->AddNode(setpinhead, 1, new TGeoCombiTrans( 0, ypos,-zpos,
3484 new TGeoRotation("",0,-90,0)));
3485 coolmanifC->AddNode(setpinhead, 1, new TGeoCombiTrans( 0, ypos,-zpos,
3486 new TGeoRotation("",0,-90,0)));
3489 coolmanifA->AddNode(sectclip, 1, new TGeoTranslation( 0, ypos,-zpos));
3490 coolmanifC->AddNode(sectclip, 1, new TGeoCombiTrans ( 0, ypos,-zpos,
3491 new TGeoRotation("",-90,180,90)));
3493 ypos -= (kSectClipThick1 + setpinoutclipsh->GetDz());
3494 coolmanifA->AddNode(setpinoutclip, 1, new TGeoCombiTrans( 0, ypos,-zpos,
3495 new TGeoRotation("",0,-90,0)));
3496 coolmanifC->AddNode(setpinoutclip, 1, new TGeoCombiTrans( 0, ypos,-zpos,
3497 new TGeoRotation("",0,-90,0)));
3499 ypos = tmp - (kSectClipThick1 + screwoutmanifsh->GetDz());
3500 zpos += (kSectSuppLen2/2 - kSectScrewZPos);
3501 coolmanifA->AddNode(screwoutmanif, 5, new TGeoCombiTrans( 0, ypos,-zpos,
3502 new TGeoRotation("",0,-90,0)));
3503 coolmanifC->AddNode(screwoutmanif, 5, new TGeoCombiTrans( 0, ypos,-zpos,
3504 new TGeoRotation("",0,-90,0)));
3505 zpos -= 2*(kSectSuppLen2/2 - kSectScrewZPos);
3506 coolmanifA->AddNode(screwoutmanif, 6, new TGeoCombiTrans( 0, ypos,-zpos,
3507 new TGeoRotation("",0,-90,0)));
3508 coolmanifC->AddNode(screwoutmanif, 6, new TGeoCombiTrans( 0, ypos,-zpos,
3509 new TGeoRotation("",0,-90,0)));
3511 // We create here the cooling pipes because it's easier to place them now
3512 AliITSv11GeomCableRound *coolpipeA[6];
3513 AliITSv11GeomCableRound *coolpipeC[6];
3515 for (Int_t i = 0; i<6; i++) {
3516 Char_t pipename[11];
3517 snprintf(pipename,11,"coolPipeA%d",i+1);
3518 coolpipeA[i] = new AliITSv11GeomCableRound(pipename,kCoolPipeSideARout);
3519 snprintf(pipename,11,"coolPipeC%d",i+1);
3520 coolpipeC[i] = new AliITSv11GeomCableRound(pipename,kCoolPipeSideCRout);
3522 coolpipeA[i]->SetNLayers(2);
3523 coolpipeA[i]->SetLayer(0, kCoolPipeSideARin, medGasFr, kPurple);
3524 coolpipeA[i]->SetLayer(1,(kCoolPipeSideARout-kCoolPipeSideARin),
3527 coolpipeC[i]->SetNLayers(2);
3528 coolpipeC[i]->SetLayer(0, kCoolPipeSideCRin, medFreon, kPurple);
3529 coolpipeC[i]->SetLayer(1,(kCoolPipeSideCRout-kCoolPipeSideCRin),
3533 xpos = manifblksh->GetDX() - kCoolManifCollXPos;
3534 ypos = manifblksh->GetDY() + manifcollcyl1sh->GetDz();
3535 zpos =-manifblksh->GetDZ() + kCoolManifCollZ0;
3536 for (Int_t i=0; i<3; i++) {
3537 coolmanifA->AddNode(manifcollcyl1, 2*i+1,
3538 new TGeoCombiTrans( xpos, -ypos, zpos,
3539 new TGeoRotation("",0,90,0)));
3540 coolmanifA->AddNode(manifcollcyl1, 2*i+2,
3541 new TGeoCombiTrans(-xpos, -ypos, zpos,
3542 new TGeoRotation("",0,90,0)));
3543 coolmanifC->AddNode(manifcollcyl1, 2*i+1,
3544 new TGeoCombiTrans( xpos, -ypos, zpos,
3545 new TGeoRotation("",0,90,0)));
3546 coolmanifC->AddNode(manifcollcyl1, 2*i+2,
3547 new TGeoCombiTrans(-xpos, -ypos, zpos,
3548 new TGeoRotation("",0,90,0)));
3549 Double_t y = ypos + manifcollcyl1sh->GetDz() + manifcollcyl2sh->GetDz();
3550 coolmanifA->AddNode(manifcollcyl2, 2*i+1,
3551 new TGeoCombiTrans( xpos, -y, zpos,
3552 new TGeoRotation("",0,90,0)));
3553 coolmanifA->AddNode(manifcollcyl2, 2*i+2,
3554 new TGeoCombiTrans(-xpos, -y, zpos,
3555 new TGeoRotation("",0,90,0)));
3556 coolmanifC->AddNode(manifcollcyl2, 2*i+1,
3557 new TGeoCombiTrans( xpos, -y, zpos,
3558 new TGeoRotation("",0,90,0)));
3559 coolmanifC->AddNode(manifcollcyl2, 2*i+2,
3560 new TGeoCombiTrans(-xpos, -y, zpos,
3561 new TGeoRotation("",0,90,0)));
3563 y += manifcollcyl2sh->GetDz();
3564 Double_t coordL[3] = { xpos,-y,zpos};
3565 Double_t coordR[3] = {-xpos,-y,zpos};
3566 Double_t vect[3] = {0, 1, 0};
3567 coolpipeA[2*i]->AddCheckPoint(coolmanifA, 0, coordL, vect);
3568 coolpipeC[2*i]->AddCheckPoint(coolmanifC, 0, coordL, vect);
3569 coolpipeA[2*i+1]->AddCheckPoint(coolmanifA, 0, coordR, vect);
3570 coolpipeC[2*i+1]->AddCheckPoint(coolmanifC, 0, coordR, vect);
3571 coordL[1] -= kCoolPipeHeight[i]*fgkmm;
3572 coordR[1] = coordL[1];
3573 coolpipeA[2*i]->AddCheckPoint(coolmanifA, 1, coordL, vect);
3574 coolpipeC[2*i]->AddCheckPoint(coolmanifC, 1, coordL, vect);
3575 coolpipeA[2*i+1]->AddCheckPoint(coolmanifA, 1, coordR, vect);
3576 coolpipeC[2*i+1]->AddCheckPoint(coolmanifC, 1, coordR, vect);
3577 coordL[1] -= kCoolPipeRadius[i]*fgkmm;
3578 coordL[2] -= kCoolPipeRadius[i]*fgkmm;
3579 coordR[1] = coordL[1];
3580 coordR[2] = coordL[2];
3583 coolpipeA[2*i]->AddCheckPoint(coolmanifA, 2, coordL, vect);
3584 coolpipeC[2*i]->AddCheckPoint(coolmanifC, 2, coordL, vect);
3585 coolpipeA[2*i+1]->AddCheckPoint(coolmanifA, 2, coordR, vect);
3586 coolpipeC[2*i+1]->AddCheckPoint(coolmanifC, 2, coordR, vect);
3587 coordL[2] = -kCoolPipeZSPD;
3588 coordR[2] = -kCoolPipeZSPD;
3589 coolpipeA[2*i]->AddCheckPoint(coolmanifA, 3, coordL, vect);
3590 coolpipeC[2*i]->AddCheckPoint(coolmanifC, 3, coordL, vect);
3591 coolpipeA[2*i+1]->AddCheckPoint(coolmanifA, 3, coordR, vect);
3592 coolpipeC[2*i+1]->AddCheckPoint(coolmanifC, 3, coordR, vect);
3594 zpos += kCoolManifCollDZ;
3597 for (Int_t i=0; i<6; i++) {
3598 coolpipeA[i]->SetInitialNode((TGeoVolume *)coolmanifA);
3599 coolpipeC[i]->SetInitialNode((TGeoVolume *)coolmanifC);
3601 coolpipeA[i]->CreateAndInsertTubeSegment(1);
3602 coolpipeC[i]->CreateAndInsertTubeSegment(1);
3603 coolpipeA[i]->CreateAndInsertTorusSegment(2,180);
3604 coolpipeC[i]->CreateAndInsertTorusSegment(2,180);
3605 coolpipeA[i]->CreateAndInsertTubeSegment(3);
3606 coolpipeC[i]->CreateAndInsertTubeSegment(3);
3610 // Finally put everything in the mother volume
3611 radius = kCoolManifRPos;
3612 zpos = kCoolManifZPos + manifblksh->GetDZ();
3613 for (Int_t i=0; i<10; i++) {
3615 moth->AddNode(coolmanifA, i+1, new TGeoCombiTrans(radius*SinD(theta),
3618 new TGeoRotation("",-theta,0,0)));
3619 moth->AddNode(coolmanifC, i+1, new TGeoCombiTrans(radius*SinD(theta),
3622 new TGeoRotation("",90-theta,180,-90)));
3629 //______________________________________________________________________
3630 TGeoVolume* AliITSv11GeometrySPD::CreateExtender(
3631 const Double_t *extenderParams, const TGeoMedium *extenderMedium,
3632 TArrayD& sizes) const
3635 // ------------------ CREATE AN EXTENDER ------------------------
3637 // This function creates the following picture (in plane xOy)
3638 // Should be useful for the definition of the pixel bus and MCM extenders
3639 // The origin corresponds to point 0 on the picture, at half-width
3643 // ^ +---+---------------------+
3646 // 0------> X / +---------------------+
3653 // ---> +-----------+---+
3659 // Takes 6 parameters in the following order :
3660 // |--> par 0 : inner length [0-1] / [9-8]
3661 // |--> par 1 : thickness ( = [0-9] / [4-5])
3662 // |--> par 2 : angle of the slope
3663 // |--> par 3 : total height in local Y direction
3664 // |--> par 4 : outer length [3-4] / [6-5]
3665 // |--> par 5 : width in local Z direction
3667 Double_t slopeDeltaX = (extenderParams[3] - extenderParams[1]
3668 * TMath::Cos(extenderParams[2])) /
3669 TMath::Tan(extenderParams[2]);
3670 Double_t extenderXtruX[10] = {
3673 extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2]) ,
3674 extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
3676 extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
3677 slopeDeltaX + extenderParams[4],
3678 extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
3679 slopeDeltaX + extenderParams[4],
3680 extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
3682 extenderParams[0]+extenderParams[1]*TMath::Sin(extenderParams[2])+
3683 slopeDeltaX - extenderParams[1] * TMath::Sin(extenderParams[2]) ,
3687 Double_t extenderXtruY[10] = {
3690 extenderParams[1] * (1-TMath::Cos(extenderParams[2])) ,
3691 extenderParams[3] - extenderParams[1] ,
3692 extenderParams[3] - extenderParams[1] ,
3695 extenderParams[3]-extenderParams[1]*(1-TMath::Cos(extenderParams[2])) ,
3700 if (sizes.GetSize() != 3) sizes.Set(3);
3701 Double_t &thickness = sizes[0];
3702 Double_t &length = sizes[1];
3703 Double_t &width = sizes[2];
3705 thickness = extenderParams[3];
3706 width = extenderParams[5];
3707 length = extenderParams[0]+extenderParams[1]*
3708 TMath::Sin(extenderParams[2])+slopeDeltaX+extenderParams[4];
3710 // creation of the volume
3711 TGeoXtru *extenderXtru = new TGeoXtru(2);
3712 TGeoVolume *extenderXtruVol = new TGeoVolume("ITSSPDextender",extenderXtru,
3714 extenderXtru->DefinePolygon(10,extenderXtruX,extenderXtruY);
3715 extenderXtru->DefineSection(0,-0.5*extenderParams[4]);
3716 extenderXtru->DefineSection(1, 0.5*extenderParams[4]);
3717 return extenderXtruVol;
3720 //______________________________________________________________________
3721 TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateHalfStave(Bool_t isRight,
3722 Int_t layer,Int_t idxCentral,Int_t idxSide,TArrayD &sizes,TGeoManager *mgr)
3725 // Implementation of an half-stave, which depends on the side where
3726 // we are on the stave. The convention for "left" and "right" is the
3727 // same as for the MCM. The return value is a TGeoAssembly which is
3728 // structured in such a way that the origin of its local reference
3729 // frame coincides with the origin of the whole stave.
3730 // The TArrayD passed by reference will contain details of the shape:
3731 // - sizes[0] = thickness
3732 // - sizes[1] = length
3733 // - sizes[2] = width
3734 // - sizes[3] = common 'x' position for eventual clips
3735 // - sizes[4] = common 'y' position for eventual clips
3736 // - sizes[5] = 'z' position of first clip
3737 // - sizes[6] = 'z' position of second clip
3742 // idxCentral and idxSide must be different
3743 if (idxCentral == idxSide) {
3744 AliInfo("Ladders must be inserted in half-stave with "
3745 "different indexes.");
3746 idxSide = idxCentral + 1;
3747 AliInfo(Form("Central ladder will be inserted with index %d",
3749 AliInfo(Form("Side ladder will be inserted with index %d",idxSide));
3752 // define the separations along Z direction between the objects
3753 Double_t sepLadderLadder = fgkmm * 0.2; // sep. btw the 2 ladders
3754 Double_t sepLadderCenter = fgkmm * 0.4; // sep. btw the "central" ladder
3755 // and the Z=0 plane in stave ref.
3756 Double_t sepLadderMCM = fgkmm * 0.3; // sep. btw the "external" ladder
3758 Double_t sepBusCenter = fgkmm * 0.3; // sep. btw the bus central edge
3759 // and the Z=0 plane in stave ref.
3764 TArrayD grndSize(3);
3765 // This one line repalces the 3 bellow, BNS.
3766 TGeoVolume *grndVol = CreateGroundingFoil(isRight, grndSize, mgr);
3767 Double_t &grndThickness = grndSize[0];
3768 Double_t &grndLength = grndSize[1];
3771 TArrayD ladderSize(3);
3772 TGeoVolume *ladder = CreateLadder(layer, ladderSize, mgr);
3773 Double_t ladderThickness = ladderSize[0];
3774 Double_t ladderLength = ladderSize[1];
3775 Double_t ladderWidth = ladderSize[2];
3779 TGeoVolumeAssembly *mcm = CreateMCM(!isRight,mcmSize,mgr);
3780 Double_t mcmThickness = mcmSize[0];
3781 Double_t mcmLength = mcmSize[1];
3782 Double_t mcmWidth = mcmSize[2];
3786 TGeoVolumeAssembly *bus = CreatePixelBus(isRight, layer, busSize, mgr);
3787 Double_t busThickness = busSize[0];
3788 Double_t busLength = busSize[1];
3789 Double_t busWidth = busSize[2];
3791 // glue between ladders and pixel bus
3792 TGeoMedium *medLadGlue = GetMedium("EPOXY$", mgr);
3793 Double_t ladGlueThickness = fgkmm * 0.1175 - fgkGapLadder;
3794 TGeoVolume *ladderGlue = mgr->MakeBox("ITSSPDladderGlue",medLadGlue,
3795 0.5*ladGlueThickness, 0.5*busWidth, 0.5*busLength);
3796 ladderGlue->SetLineColor(kYellow + 5);
3798 // create references for the whole object, as usual
3800 Double_t &fullThickness = sizes[0];
3801 Double_t &fullLength = sizes[1];
3802 Double_t &fullWidth = sizes[2];
3804 // compute the full size of the container
3805 fullLength = sepLadderCenter+2.0*ladderLength+sepLadderMCM+
3806 sepLadderLadder+mcmLength;
3807 fullWidth = ladderWidth;
3808 fullThickness = grndThickness + fgkGapLadder + mcmThickness + busThickness;
3809 //cout << "HSTAVE FULL THICKNESS = " << fullThickness << endl;
3813 // grounding foil (shifted only along thickness)
3814 Double_t xGrnd = -0.5*fullThickness + 0.5*grndThickness;
3815 Double_t zGrnd = -0.5*grndLength;
3816 if (!isRight) zGrnd = -zGrnd;
3817 TGeoTranslation *grndTrans = new TGeoTranslation(xGrnd, 0.0, zGrnd);
3819 // ladders (translations along thickness and length)
3820 // layers must be sorted going from the one at largest Z to the
3821 // one at smallest Z:
3822 // -|Zmax| ------> |Zmax|
3824 // then, for layer 1 ladders they must be placed exactly this way,
3825 // and in layer 2 at the opposite. In order to remember the placements,
3826 // we define as "inner" and "outer" ladder respectively the one close
3827 // to barrel center, and the one closer to MCM, respectively.
3828 Double_t xLad, zLadIn, zLadOut;
3829 xLad = xGrnd + 0.5*(grndThickness + ladderThickness) +
3830 0.01175 - fgkGapLadder;
3831 zLadIn = -sepLadderCenter - 0.5*ladderLength;
3832 zLadOut = zLadIn - sepLadderLadder - ladderLength;
3836 } // end if !isRight
3837 TGeoRotation *rotLad = new TGeoRotation(*gGeoIdentity);
3838 rotLad->RotateZ(90.0);
3839 rotLad->RotateY(180.0);
3840 Double_t sensWidth = fgkmm * 12.800;
3841 Double_t chipWidth = fgkmm * 15.950;
3842 Double_t guardRingWidth = fgkmm * 0.560;
3843 Double_t ladderShift = 0.5 * (chipWidth - sensWidth - 2.0*guardRingWidth);
3844 TGeoCombiTrans *trLadIn = new TGeoCombiTrans(xLad,ladderShift,zLadIn,
3846 TGeoCombiTrans *trLadOut = new TGeoCombiTrans(xLad,ladderShift,zLadOut,
3849 // MCM (length and thickness direction, placing at same level as the
3850 // ladder, which implies to recompute the position of center, because
3851 // ladder and MCM have NOT the same thickness) the two copies of the
3852 // MCM are placed at the same distance from the center, on both sides
3853 Double_t xMCM = xGrnd + 0.5*grndThickness + 0.5*mcmThickness +
3854 0.01175 - fgkGapLadder;
3855 Double_t yMCM = 0.5*(fullWidth - mcmWidth);
3856 Double_t zMCM = zLadOut - 0.5*ladderLength - 0.5*mcmLength - sepLadderMCM;
3857 if (!isRight) zMCM = zLadOut + 0.5*ladderLength + 0.5*mcmLength +
3860 // create the correction rotations
3861 TGeoRotation *rotMCM = new TGeoRotation(*gGeoIdentity);
3862 rotMCM->RotateY(90.0);
3863 TGeoCombiTrans *trMCM = new TGeoCombiTrans(xMCM, yMCM, zMCM, rotMCM);
3865 // glue between ladders and pixel bus
3866 Double_t xLadGlue = xLad + 0.5*ladderThickness + 0.01175 -
3867 fgkGapLadder + 0.5*ladGlueThickness;
3869 // bus (length and thickness direction)
3870 Double_t xBus = xLadGlue + 0.5*ladGlueThickness + 0.5*busThickness;
3871 Double_t yBus = 0.5*(fullWidth - busWidth) + 0.075; // Hardcode fix of a small overlap
3872 Double_t zBus = -0.5*busLength - sepBusCenter;
3873 if (!isRight) zBus = -zBus;
3874 TGeoTranslation *trBus = new TGeoTranslation(xBus, yBus, zBus);
3876 TGeoTranslation *trLadGlue = new TGeoTranslation(xLadGlue, 0.0, zBus);
3878 // create the container
3879 TGeoVolumeAssembly *container = 0;
3880 if (idxCentral+idxSide==5) {
3881 container = new TGeoVolumeAssembly("ITSSPDhalf-Stave1");
3883 container = new TGeoVolumeAssembly("ITSSPDhalf-Stave0");
3886 // add to container all objects
3887 container->AddNode(grndVol, 1, grndTrans);
3888 // ladders are inserted in different order to respect numbering scheme
3889 // which is inverted when going from outer to inner layer
3890 container->AddNode(ladder, idxCentral+1, trLadIn);
3891 container->AddNode(ladder, idxSide+1, trLadOut);
3892 container->AddNode(ladderGlue, 1, trLadGlue);
3893 container->AddNode(mcm, 1, trMCM);
3894 container->AddNode(bus, 1, trBus);
3896 // since the clips are placed in correspondence of two pt1000s,
3897 // their position is computed here, but they are not added by default
3898 // it will be the StavesInSector method which will decide to add them
3899 // anyway, to recovery some size informations on the clip, it must be
3902 // TGeoVolume *clipDummy = CreateClip(clipSize, kTRUE, mgr);
3903 CreateClip(clipSize, kTRUE, mgr);
3904 // define clip movements (width direction)
3905 sizes[3] = xBus + 0.5*busThickness;
3906 sizes[4] = 0.5 * (fullWidth - busWidth) - clipSize[6] - fgkmm*0.26;
3907 sizes[5] = zBus + busSize[4];
3908 sizes[6] = zBus + busSize[5];
3912 //______________________________________________________________________
3913 TGeoVolumeAssembly* AliITSv11GeometrySPD::CreateStave(Int_t layer,
3914 TArrayD &sizes, TGeoManager *mgr)
3917 // This method uses all other ones which create pieces of the stave
3918 // and assemblies everything together, in order to return the whole
3919 // stave implementation, which is returned as a TGeoVolumeAssembly,
3920 // due to the presence of some parts which could generate fake overlaps
3921 // when put on the sector.
3922 // This assembly contains, going from bottom to top in the thickness
3924 // - the complete grounding foil, defined by the "CreateGroundingFoil"
3925 // method which already joins some glue and real groudning foil
3926 // layers for the whole stave (left + right);
3927 // - 4 ladders, which are sorted according to the ALICE numbering
3928 // scheme, which depends on the layer we are building this stave for;
3929 // - 2 MCMs (a left and a right one);
3930 // - 2 pixel buses (a left and a right one);
3933 // - the layer number, which determines the displacement and naming
3934 // of sensitive volumes
3935 // - a TArrayD passed by reference which will contain the size
3936 // of virtual box containing the stave
3937 // - the TGeoManager
3940 // create the container
3941 TGeoVolumeAssembly *container = new TGeoVolumeAssembly(Form(
3942 "ITSSPDlay%d-Stave",layer));
3943 // define the indexes of the ladders in order to have the correct order
3944 // keeping in mind that the staves will be inserted as they are on layer
3945 // 2, while they are rotated around their local Y axis when inserted
3946 // on layer 1, so in this case they must be put in the "wrong" order
3947 // to turn out to be right at the end. The convention is:
3948 // -|Zmax| ------> |Zmax|
3950 // with respect to the "native" stave reference frame, "left" is in
3951 // the positive Z this leads the definition of these indexes:
3952 Int_t idxCentralL, idxSideL, idxCentralR, idxSideR;
3964 } // end if layer ==1
3966 // create the two half-staves
3967 TArrayD sizeL, sizeR;
3968 TGeoVolumeAssembly *hstaveL = CreateHalfStave(kFALSE, layer, idxCentralL,
3969 idxSideL, sizeL,mgr);
3970 TGeoVolumeAssembly *hstaveR = CreateHalfStave(kTRUE, layer, idxCentralR,
3971 idxSideR, sizeR, mgr);
3972 // copy the size to the stave's one
3974 sizes[0] = sizeL[0];
3975 sizes[1] = sizeR[1] + sizeL[1];
3976 sizes[2] = sizeL[2];
3977 sizes[3] = sizeL[3];
3978 sizes[4] = sizeL[4];
3979 sizes[5] = sizeL[5];
3980 sizes[6] = sizeL[6];
3981 sizes[7] = sizeR[5];
3982 sizes[8] = sizeR[6];
3984 // add to container all objects
3985 container->AddNode(hstaveL, 1);
3986 container->AddNode(hstaveR, 1);
3990 //______________________________________________________________________
3991 void AliITSv11GeometrySPD::SetAddStave(Bool_t *mask)
3994 // Define a mask which states qhich staves must be placed.
3995 // It is a string which must contain '0' or '1' depending if
3996 // a stave must be placed or not.
3997 // Each place is referred to one of the staves, so the first
3998 // six characters of the string will be checked.
4002 for (i = 0; i < 6; i++) fAddStave[i] = mask[i];
4004 //______________________________________________________________________
4005 void AliITSv11GeometrySPD::StavesInSector(TGeoVolume *moth, TGeoManager *mgr)
4008 // Unification of essentially two methods:
4009 // - the one which creates the sector structure
4010 // - the one which returns the complete stave
4012 // For compatibility, this method requires the same arguments
4013 // asked by "CarbonFiberSector" method, which is recalled here.
4014 // Like this cited method, this one does not return any value,
4015 // but it inserts in the mother volume (argument 'moth') all the stuff
4016 // which composes the complete SPD sector.
4018 // In the following, the stave numbering order used for arrays is the
4019 // same as defined in the GetSectorMountingPoints():
4025 // Arguments: see description of "CarbonFiberSector" method.
4028 Double_t shift[6]; // shift from the innermost position in the
4029 // sector placement plane (where the stave
4030 // edge is in the point where the rounded
4033 shift[0] = fgkmm * -0.691;
4034 shift[1] = fgkmm * 5.041;
4035 shift[2] = fgkmm * 1.816;
4036 shift[3] = fgkmm * -0.610;
4037 shift[4] = fgkmm * -0.610;
4038 shift[5] = fgkmm * -0.610;
4040 // corrections after interaction with Andrea and CAD
4041 Double_t corrX[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
4042 Double_t corrY[6] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
4046 corrX[2] = corrX[3] = corrX[4] = corrX[5] = -0.0016;
4050 corrY[2] = corrY[3] = corrY[4] = corrY[5] = -0.0003;
4052 corrX[0] += 0.00026;
4053 corrY[0] += -0.00080;
4055 corrX[1] += 0.00018;
4056 corrY[1] += -0.00086;
4058 corrX[2] += 0.00020;
4059 corrY[2] += -0.00062;
4061 corrX[3] += 0.00017;
4062 corrY[3] += -0.00076;
4064 corrX[4] += 0.00016;
4065 corrY[4] += -0.00096;
4067 corrX[5] += 0.00018;
4068 corrY[5] += -0.00107;
4070 // create stave volumes (different for layer 1 and 2)
4071 TArrayD staveSizes1(9), staveSizes2(9), clipSize(5);
4072 Double_t &staveHeight = staveSizes1[2], &staveThickness = staveSizes1[0];
4073 TGeoVolume *stave1 = CreateStave(1, staveSizes1, mgr);
4074 TGeoVolume *stave2 = CreateStave(2, staveSizes2, mgr);
4075 TGeoVolume *clip = CreateClip(clipSize, kFALSE, mgr);
4077 Double_t xL, yL; // leftmost edge of mounting point (XY projection)
4078 Double_t xR, yR; // rightmost edge of mounting point (XY projection)
4079 Double_t xM, yM; // middle point of the segment L-R
4080 Double_t dx, dy; // (xL - xR) and (yL - yR)
4081 Double_t widthLR; // width of the segment L-R
4082 Double_t angle; // stave rotation angle in degrees
4083 Double_t diffWidth; // difference between mounting plane width and
4084 // stave width (smaller)
4085 Double_t xPos, yPos; // final translation of the stave
4086 Double_t parMovement; // translation in the LR plane direction
4088 staveThickness += fgkGapHalfStave;
4092 for (i = 0; i < 6; i++) {
4093 // in debug mode, if this stave is not required, it is skipped
4094 if (!fAddStave[i]) continue;
4095 // retrieve reference points
4096 GetSectorMountingPoints(i, xL, yL, xR, yR);
4097 xM = 0.5 * (xL + xR);
4098 yM = 0.5 * (yL + yR);
4101 angle = TMath::ATan2(dy, dx);
4102 widthLR = TMath::Sqrt(dx*dx + dy*dy);
4103 diffWidth = 0.5*(widthLR - staveHeight);
4104 // first, a movement along this plane must be done
4105 // by an amount equal to the width difference
4106 // and then the fixed shift must also be added
4107 parMovement = diffWidth + shift[i];
4108 // due to stave thickness, another movement must be done
4109 // in the direction normal to the mounting plane
4110 // which is computed using an internal method, in a reference
4111 // frame where the LR segment has its middle point in the origin
4112 // and axes parallel to the master reference frame
4114 ParallelPosition(-0.5*staveThickness, -parMovement, angle,
4118 ParallelPosition( 0.5*staveThickness, -parMovement, angle,
4121 ParallelPosition( 0.5*staveThickness, parMovement, angle,
4124 // then we go into the true reference frame
4129 // using the parameters found here, compute the
4130 // translation and rotation of this stave:
4131 TGeoRotation *rot = new TGeoRotation(*gGeoIdentity);
4132 if (i == 0 || i == 1) rot->RotateX(180.0);
4133 rot->RotateZ(90.0 + angle * TMath::RadToDeg());
4134 TGeoCombiTrans *trans = new TGeoCombiTrans(xPos, yPos, 0.0, rot);
4135 if (i == 0 || i == 1) {
4136 moth->AddNode(stave1, i+1, trans);
4138 moth->AddNode(stave2, i - 1, trans);
4140 // except in the case of stave #2,
4141 // clips must be added, and this is done directly on the sector
4144 TGeoRotation *rotClip = new TGeoRotation(*gGeoIdentity);
4145 rotClip->RotateZ(-90.0);
4146 rotClip->RotateX(180.0);
4147 Double_t x = staveSizes2[3] + fgkGapHalfStave;
4148 Double_t y = staveSizes2[4];
4149 Double_t z[4] = { staveSizes2[5], staveSizes2[6],
4150 staveSizes2[7], staveSizes2[8] };
4151 for (j = 0; j < 4; j++) {
4152 TGeoCombiTrans *trClip = new TGeoCombiTrans(x, y, z[j],
4154 *trClip = *trans * *trClip;
4155 moth->AddNode(clip, iclip++, trClip);
4158 } // end if i==0||i==1 else
4162 // Add a box representing the collector for cooling tubes
4163 // MOVED TO CreateServices() - M.S. 25 jul 12
4166 //______________________________________________________________________
4167 void AliITSv11GeometrySPD::ParallelPosition(Double_t dist1, Double_t dist2,
4168 Double_t phi, Double_t &x, Double_t &y) const
4171 // Performs the following steps:
4172 // 1 - finds a straight line parallel to the one passing through
4173 // the origin and with angle 'phi' with X axis(phi in RADIANS);
4174 // 2 - finds another line parallel to the previous one, with a
4175 // distance 'dist1' from it
4176 // 3 - takes a reference point in the second line in the intersection
4177 // between the normal to both lines passing through the origin
4178 // 4 - finds a point whith has distance 'dist2' from this reference,
4179 // in the second line (point 2)
4181 // According to the signs given to dist1 and dist2, the point is
4182 // found in different position w.r. to the origin
4183 // compute the point
4185 Double_t cs = TMath::Cos(phi);
4186 Double_t sn = TMath::Sin(phi);
4188 x = dist2*cs - dist1*sn;
4189 y = dist1*cs + dist2*sn;
4191 //______________________________________________________________________
4192 Double_t AliITSv11GeometrySPD::GetSPDSectorTranslation(
4193 Double_t x0,Double_t y0,Double_t x1,Double_t y1,Double_t r) const
4196 // Comutes the radial translation of a sector to give the
4197 // proper distance between SPD detectors and the beam pipe.
4198 // Units in are units out.
4203 <A HREF="http://www.physics.ohio-state.edu/HIRG/SoftWareDoc/SPD_Sector_Position.png">
4204 Figure showing the geometry used in the computation below. </A>
4209 // Double_t x0 Point x0 on Sector surface for the inner
4210 // most detector mounting
4211 // Double_t y0 Point y0 on Sector surface for the innor
4212 // most detector mounting
4213 // Double_t x1 Point x1 on Sector surface for the inner
4214 // most detector mounting
4215 // Double_t y1 Point y1 on Sector surface for the innor
4216 // most detector mounting
4217 // Double_t r The radial distance this mounting surface
4218 // should be from the center of the beam pipe.
4222 // The distance the SPD sector should be displaced radialy.
4227 if(a==0.0) return 0.0;
4229 b = TMath::Sqrt(1.0+a*a);
4234 //______________________________________________________________________
4235 void AliITSv11GeometrySPD::PrintAscii(ostream *os) const
4238 // Print out class data values in Ascii Form to output stream
4240 // ostream *os Output stream where Ascii data is to be writen
4247 #if defined __GNUC__
4249 ios::fmtflags fmt = cout.flags();
4254 #if defined __ICC || defined __ECC || defined __xlC__
4261 *os<< fgkGapLadder <<" "<< fgkGapHalfStave<<" "<< 6 <<" ";
4262 for(i=0;i<6;i++) *os<< fAddStave[i] <<" "<<fSPDsectorX0.GetSize();
4263 for(i=0;i<fSPDsectorX0.GetSize();i++) *os<< fSPDsectorX0.GetAt(i) << " ";
4264 for(i=0;i<fSPDsectorX0.GetSize();i++) *os<< fSPDsectorY0.GetAt(i) << " ";
4265 for(i=0;i<fSPDsectorX1.GetSize();i++) *os<< fSPDsectorX1.GetAt(i) << " ";
4266 for(i=0;i<fSPDsectorX1.GetSize();i++) *os<< fSPDsectorY1.GetAt(i) << " ";
4267 *os<<10<<" "<< 2 <<" " << 6 << " "<< 3 <<" ";
4268 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
4269 *os<<fTubeEndSector[k][0][i][j]<<" ";
4270 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
4271 *os<<fTubeEndSector[k][1][i][j]<<" ";
4272 os->flags(fmt); // reset back to old Formating.
4276 //______________________________________________________________________
4277 void AliITSv11GeometrySPD::ReadAscii(istream* is)
4280 // Read in class data values in Ascii Form to output stream
4282 // istream *is Input stream where Ascii data is to be read in from
4289 Double_t gapLadder,gapHalfStave;
4290 const Int_t kLimits = 100;
4291 *is>>gapLadder>>gapHalfStave>>n;
4293 AliError(Form("fAddStave Array !=6 n=%d",n));
4296 for(i=0;i<n;i++) *is>>fAddStave[i];
4298 if(n<0 || n> kLimits){
4299 AliError("Anomalous value for parameter n");
4302 fSPDsectorX0.Set(n);
4303 fSPDsectorY0.Set(n);
4304 fSPDsectorX1.Set(n);
4305 fSPDsectorY1.Set(n);
4306 for(i=0;i<n;i++) *is>>fSPDsectorX0[i];
4307 for(i=0;i<n;i++) *is>>fSPDsectorY0[i];
4308 for(i=0;i<n;i++) *is>>fSPDsectorX1[i];
4309 for(i=0;i<n;i++) *is>>fSPDsectorY1[i];
4311 if(i!=2||j!=6||n!=3){
4312 Warning("ReadAscii","fTubeEndSector array wrong size [2][6][3],"
4313 "found [%d][%d][%d]",i,j,n);
4316 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
4317 *is>>fTubeEndSector[k][0][i][j];
4318 for(k=0;k<10;k++)for(i=0;i<6;i++)for(j=0;j<3;j++)
4319 *is>>fTubeEndSector[k][1][i][j];
4323 //______________________________________________________________________
4324 ostream &operator<<(ostream &os,const AliITSv11GeometrySPD &s)
4327 // Standard output streaming function
4329 // ostream &os output steam
4330 // AliITSvPPRasymmFMD &s class to be streamed.
4334 // ostream &os The stream pointer
4340 //______________________________________________________________________
4341 istream &operator>>(istream &is,AliITSv11GeometrySPD &s)
4344 // Standard inputput streaming function
4346 // istream &is input steam
4347 // AliITSvPPRasymmFMD &s class to be streamed.
4351 // ostream &os The stream pointer