1 /**************************************************************************
2 * Copyright(c) 1998-1999, 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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // TRD geometry class //
22 ///////////////////////////////////////////////////////////////////////////////
25 #include <TGeoManager.h>
26 #include <TGeoPhysicalNode.h>
27 #include <TGeoMatrix.h>
30 #include "AliRunLoader.h"
31 #include "AliAlignObj.h"
32 #include "AliAlignObjAngles.h"
36 #include "AliTRDcalibDB.h"
37 #include "AliTRDCommonParam.h"
38 #include "AliTRDgeometry.h"
39 #include "AliTRDpadPlane.h"
41 ClassImp(AliTRDgeometry)
43 //_____________________________________________________________________________
46 // The geometry constants
48 const Int_t AliTRDgeometry::fgkNsect = kNsect;
49 const Int_t AliTRDgeometry::fgkNplan = kNplan;
50 const Int_t AliTRDgeometry::fgkNcham = kNcham;
51 const Int_t AliTRDgeometry::fgkNdet = kNdet;
54 // Dimensions of the detector
57 // Parameter of the BTRD mother volumes
58 const Float_t AliTRDgeometry::fgkSheight = 77.9;
59 const Float_t AliTRDgeometry::fgkSwidth1 = 94.881;
60 const Float_t AliTRDgeometry::fgkSwidth2 = 122.353;
61 const Float_t AliTRDgeometry::fgkSlength = 751.0;
63 // The super module side plates
64 const Float_t AliTRDgeometry::fgkSMpltT = 0.2;
66 // Height of different chamber parts
68 const Float_t AliTRDgeometry::fgkCraH = 4.8;
70 const Float_t AliTRDgeometry::fgkCdrH = 3.0;
71 // Amplification region
72 const Float_t AliTRDgeometry::fgkCamH = 0.7;
74 const Float_t AliTRDgeometry::fgkCroH = 2.316;
76 const Float_t AliTRDgeometry::fgkCH = AliTRDgeometry::fgkCraH
77 + AliTRDgeometry::fgkCdrH
78 + AliTRDgeometry::fgkCamH
79 + AliTRDgeometry::fgkCroH;
81 // Vertical spacing of the chambers
82 const Float_t AliTRDgeometry::fgkVspace = 1.784;
83 // Horizontal spacing of the chambers
84 const Float_t AliTRDgeometry::fgkHspace = 2.0;
85 // Radial distance of the first ROC to the outer plates of the SM
86 const Float_t AliTRDgeometry::fgkVrocsm = 1.2;
88 // Thicknesses of different parts of the chamber frame
89 // Lower aluminum frame
90 const Float_t AliTRDgeometry::fgkCalT = 0.4;
91 // Lower Wacosit frame sides
92 const Float_t AliTRDgeometry::fgkCclsT = 0.21;
93 // Lower Wacosit frame front
94 const Float_t AliTRDgeometry::fgkCclfT = 1.0;
95 // Thickness of glue around radiator
96 const Float_t AliTRDgeometry::fgkCglT = 0.25;
97 // Upper Wacosit frame
98 const Float_t AliTRDgeometry::fgkCcuT = 0.9;
99 // Al frame of back panel
100 const Float_t AliTRDgeometry::fgkCauT = 1.5;
101 // Additional Al of the lower chamber frame
102 const Float_t AliTRDgeometry::fgkCalW = 1.11;
104 // Additional width of the readout chamber frames
105 const Float_t AliTRDgeometry::fgkCroW = 0.9;
107 // Difference of outer chamber width and pad plane width
108 const Float_t AliTRDgeometry::fgkCpadW = 0.0;
109 const Float_t AliTRDgeometry::fgkRpadW = 1.0;
112 // Thickness of the the material layers
114 const Float_t AliTRDgeometry::fgkMyThick = 0.005;
115 const Float_t AliTRDgeometry::fgkRaThick = 0.3233;
116 const Float_t AliTRDgeometry::fgkDrThick = AliTRDgeometry::fgkCdrH;
117 const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkCamH;
118 const Float_t AliTRDgeometry::fgkXeThick = AliTRDgeometry::fgkDrThick
119 + AliTRDgeometry::fgkAmThick;
120 const Float_t AliTRDgeometry::fgkWrThick = 0.0002;
121 const Float_t AliTRDgeometry::fgkCuThick = 0.0072;
122 const Float_t AliTRDgeometry::fgkGlThick = 0.05;
123 const Float_t AliTRDgeometry::fgkSuThick = 0.0919;
124 const Float_t AliTRDgeometry::fgkRcThick = 0.0058;
125 const Float_t AliTRDgeometry::fgkRpThick = 0.0632;
126 const Float_t AliTRDgeometry::fgkRoThick = 0.0028;
129 // Position of the material layers
131 const Float_t AliTRDgeometry::fgkRaZpos = 0.0;
132 const Float_t AliTRDgeometry::fgkDrZpos = 2.4;
133 const Float_t AliTRDgeometry::fgkAmZpos = 0.0;
134 const Float_t AliTRDgeometry::fgkWrZpos = 0.0;
135 const Float_t AliTRDgeometry::fgkCuZpos = -0.9995;
136 const Float_t AliTRDgeometry::fgkGlZpos = -0.5;
137 const Float_t AliTRDgeometry::fgkSuZpos = 0.0;
138 const Float_t AliTRDgeometry::fgkRcZpos = 1.04;
139 const Float_t AliTRDgeometry::fgkRpZpos = 1.0;
140 const Float_t AliTRDgeometry::fgkRoZpos = 1.05;
142 const Int_t AliTRDgeometry::fgkMCMmax = 16;
143 const Int_t AliTRDgeometry::fgkMCMrow = 4;
144 const Int_t AliTRDgeometry::fgkROBmaxC0 = 6;
145 const Int_t AliTRDgeometry::fgkROBmaxC1 = 8;
146 const Int_t AliTRDgeometry::fgkADCmax = 21;
147 const Int_t AliTRDgeometry::fgkTBmax = 60;
148 const Int_t AliTRDgeometry::fgkPadmax = 18;
149 const Int_t AliTRDgeometry::fgkColmax = 144;
150 const Int_t AliTRDgeometry::fgkRowmaxC0 = 12;
151 const Int_t AliTRDgeometry::fgkRowmaxC1 = 16;
153 const Double_t AliTRDgeometry::fgkTime0Base = 300.65;
154 const Float_t AliTRDgeometry::fgkTime0[6] = { fgkTime0Base + 0 * (Cheight() + Cspace())
155 , fgkTime0Base + 1 * (Cheight() + Cspace())
156 , fgkTime0Base + 2 * (Cheight() + Cspace())
157 , fgkTime0Base + 3 * (Cheight() + Cspace())
158 , fgkTime0Base + 4 * (Cheight() + Cspace())
159 , fgkTime0Base + 5 * (Cheight() + Cspace())};
161 //_____________________________________________________________________________
162 AliTRDgeometry::AliTRDgeometry()
165 ,fMatrixCorrectionArray(0)
170 // AliTRDgeometry default constructor
177 //_____________________________________________________________________________
178 AliTRDgeometry::AliTRDgeometry(const AliTRDgeometry &g)
180 ,fMatrixArray(g.fMatrixArray)
181 ,fMatrixCorrectionArray(g.fMatrixCorrectionArray)
182 ,fMatrixGeo(g.fMatrixGeo)
185 // AliTRDgeometry copy constructor
192 //_____________________________________________________________________________
193 AliTRDgeometry::~AliTRDgeometry()
196 // AliTRDgeometry destructor
204 if (fMatrixCorrectionArray) {
205 delete fMatrixCorrectionArray;
206 fMatrixCorrectionArray = 0;
211 //_____________________________________________________________________________
212 AliTRDgeometry &AliTRDgeometry::operator=(const AliTRDgeometry &g)
215 // Assignment operator
226 //_____________________________________________________________________________
227 void AliTRDgeometry::Init()
230 // Initializes the geometry parameter
237 // The outer width of the chambers
245 // The outer lengths of the chambers
246 // Includes the spacings between the chambers!
247 Float_t length[kNplan][kNcham] = { { 124.0, 124.0, 110.0, 124.0, 124.0 }
248 , { 124.0, 124.0, 110.0, 124.0, 124.0 }
249 , { 131.0, 131.0, 110.0, 131.0, 131.0 }
250 , { 138.0, 138.0, 110.0, 138.0, 138.0 }
251 , { 145.0, 145.0, 110.0, 145.0, 145.0 }
252 , { 147.0, 147.0, 110.0, 147.0, 147.0 } };
254 for (icham = 0; icham < kNcham; icham++) {
255 for (iplan = 0; iplan < kNplan; iplan++) {
256 fClength[iplan][icham] = length[iplan][icham];
260 // The rotation matrix elements
262 for (isect = 0; isect < fgkNsect; isect++) {
263 phi = 2.0 * TMath::Pi() / (Float_t) fgkNsect * ((Float_t) isect + 0.5);
264 fRotA11[isect] = TMath::Cos(phi);
265 fRotA12[isect] = TMath::Sin(phi);
266 fRotA21[isect] = TMath::Sin(phi);
267 fRotA22[isect] = TMath::Cos(phi);
269 fRotB11[isect] = TMath::Cos(phi);
270 fRotB12[isect] = TMath::Sin(phi);
271 fRotB21[isect] = TMath::Sin(phi);
272 fRotB22[isect] = TMath::Cos(phi);
275 for (isect = 0; isect < fgkNsect; isect++) {
276 SetSMstatus(isect,1);
281 //_____________________________________________________________________________
282 void AliTRDgeometry::CreateGeometry(Int_t *idtmed)
285 // Create the TRD geometry without hole
288 // Names of the TRD volumina (xx = detector number):
290 // Volume (Air) wrapping the readout chamber components
291 // UTxx includes: UAxx, UDxx, UFxx, UUxx
293 // Volume (Air) wrapping the services (fee + cooling)
294 // UUxx the services volume has been reduced by 7.42 mm
295 // in order to allow shifts in radial direction
297 // Lower part of the readout chambers (drift volume + radiator)
299 // UAxx Aluminum frames (Al)
300 // UBxx Wacosit frames (C)
301 // UXxx Glue around radiator (Epoxy)
302 // UCxx Inner volumes (Air)
303 // UZxx Additional aluminum ledges (Al)
305 // Upper part of the readout chambers (readout plane + fee)
307 // UDxx Wacosit frames of amp. region (C)
308 // UExx Inner volumes of the frame (Air)
309 // UFxx Aluminum frame of back panel (Al)
310 // UGxx Inner volumes of the back panel (Air)
312 // Inner material layers
314 // UHxx Radiator (Rohacell)
315 // UJxx Drift volume (Xe/CO2)
316 // UKxx Amplification volume (Xe/CO2)
317 // UWxx Wire plane (Cu)
318 // ULxx Pad plane (Cu)
319 // UYxx Glue layer (Epoxy)
320 // UMxx Support structure (Rohacell)
321 // UNxx ROB base material (C)
322 // UOxx ROB copper (Cu)
323 // UVxx ROB other materials (Cu)
326 const Int_t kNparTrd = 4;
327 const Int_t kNparCha = 3;
333 Float_t parTrd[kNparTrd];
334 Float_t parCha[kNparCha];
339 // The TRD mother volume for one sector (Air), full length in z-direction
340 // Provides material for side plates of super module
341 parTrd[0] = fgkSwidth1/2.0;
342 parTrd[1] = fgkSwidth2/2.0;
343 parTrd[2] = fgkSlength/2.0;
344 parTrd[3] = fgkSheight/2.0;
345 gMC->Gsvolu("UTR1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
347 // The outer aluminum plates of the super module (Al)
348 parTrd[0] = fgkSwidth1/2.0;
349 parTrd[1] = fgkSwidth2/2.0;
350 parTrd[2] = fgkSlength/2.0;
351 parTrd[3] = fgkSheight/2.0;
352 gMC->Gsvolu("UTS1","TRD1",idtmed[1301-1],parTrd,kNparTrd);
354 // The inner part of the TRD mother volume for one sector (Air),
355 // full length in z-direction
356 parTrd[0] = fgkSwidth1/2.0 - fgkSMpltT;
357 parTrd[1] = fgkSwidth2/2.0 - fgkSMpltT;
358 parTrd[2] = fgkSlength/2.0;
359 parTrd[3] = fgkSheight/2.0 - fgkSMpltT;
360 gMC->Gsvolu("UTI1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
362 for (Int_t icham = 0; icham < kNcham; icham++) {
363 for (Int_t iplan = 0; iplan < kNplan; iplan++) {
365 Int_t iDet = GetDetectorSec(iplan,icham);
367 // The lower part of the readout chambers (drift volume + radiator)
368 // The aluminum frames
369 sprintf(cTagV,"UA%02d",iDet);
370 parCha[0] = fCwidth[iplan]/2.0;
371 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0;
372 parCha[2] = fgkCraH/2.0 + fgkCdrH/2.0;
373 fChamberUAboxd[iDet][0] = parCha[0];
374 fChamberUAboxd[iDet][1] = parCha[1];
375 fChamberUAboxd[iDet][2] = parCha[2];
376 gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
377 // The additional aluminum on the frames
378 // This part has not the correct postion but is just supposed to
379 // represent the missing material. The correct from of the L-shaped
380 // profile would not fit into the alignable volume.
381 sprintf(cTagV,"UZ%02d",iDet);
382 parCha[0] = fgkCroW/2.0;
383 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0;
384 parCha[2] = fgkCalW/2.0;
385 fChamberUAboxd[iDet][0] = fChamberUAboxd[iDet][0] + fgkCroW;
386 gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
387 // The Wacosit frames
388 sprintf(cTagV,"UB%02d",iDet);
389 parCha[0] = fCwidth[iplan]/2.0 - fgkCalT;
392 gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
393 // The glue around the radiator
394 sprintf(cTagV,"UX%02d",iDet);
395 parCha[0] = fCwidth[iplan]/2.0 - fgkCalT - fgkCclsT;
396 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0 - fgkCclfT;
397 parCha[2] = fgkCraH/2.0;
398 gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
399 // The inner part of radiator (air)
400 sprintf(cTagV,"UC%02d",iDet);
401 parCha[0] = fCwidth[iplan]/2.0 - fgkCalT - fgkCclsT - fgkCglT;
402 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0 - fgkCclfT - fgkCglT;
404 gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
406 // The upper part of the readout chambers (amplification volume)
407 // The Wacosit frames
408 sprintf(cTagV,"UD%02d",iDet);
409 parCha[0] = fCwidth[iplan]/2.0 + fgkCroW;
410 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0;
411 parCha[2] = fgkCamH/2.0;
412 fChamberUDboxd[iDet][0] = parCha[0];
413 fChamberUDboxd[iDet][1] = parCha[1];
414 fChamberUDboxd[iDet][2] = parCha[2];
415 gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
416 // The inner part of the Wacosit frame (air)
417 sprintf(cTagV,"UE%02d",iDet);
418 parCha[0] = fCwidth[iplan]/2.0 + fgkCroW - fgkCcuT;
419 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0 - fgkCcuT;
421 gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
423 // The support structure (pad plane, back panel, readout boards)
424 // The aluminum frames
425 sprintf(cTagV,"UF%02d",iDet);
426 parCha[0] = fCwidth[iplan]/2.0 + fgkCroW;
427 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0;
428 parCha[2] = fgkCroH/2.0;
429 fChamberUFboxd[iDet][0] = parCha[0];
430 fChamberUFboxd[iDet][1] = parCha[1];
431 fChamberUFboxd[iDet][2] = parCha[2];
432 gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
433 // The inner part of the aluminum frames
434 sprintf(cTagV,"UG%02d",iDet);
435 parCha[0] = fCwidth[iplan]/2.0 + fgkCroW - fgkCauT;
436 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0 - fgkCauT;
438 gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
440 // The material layers inside the chambers
441 // Rohacell layer (radiator)
444 parCha[2] = fgkRaThick/2.0;
445 sprintf(cTagV,"UH%02d",iDet);
446 gMC->Gsvolu(cTagV,"BOX ",idtmed[1315-1],parCha,kNparCha);
447 // Xe/Isobutane layer (drift volume)
448 parCha[0] = fCwidth[iplan]/2.0 - fgkCalT - fgkCclsT;
449 parCha[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0 - fgkCclfT;
450 parCha[2] = fgkDrThick/2.0;
451 sprintf(cTagV,"UJ%02d",iDet);
452 gMC->Gsvolu(cTagV,"BOX ",idtmed[1309-1],parCha,kNparCha);
453 // Xe/Isobutane layer (amplification volume)
456 parCha[2] = fgkAmThick/2.0;
457 sprintf(cTagV,"UK%02d",iDet);
458 gMC->Gsvolu(cTagV,"BOX ",idtmed[1309-1],parCha,kNparCha);
459 // Cu layer (wire plane)
462 parCha[2] = fgkWrThick/2.0;
463 sprintf(cTagV,"UW%02d",iDet);
464 gMC->Gsvolu(cTagV,"BOX ",idtmed[1303-1],parCha,kNparCha);
465 // Cu layer (pad plane)
468 parCha[2] = fgkCuThick/2.0;
469 sprintf(cTagV,"UL%02d",iDet);
470 gMC->Gsvolu(cTagV,"BOX ",idtmed[1305-1],parCha,kNparCha);
471 // Epoxy layer (glue)
474 parCha[2] = fgkGlThick/2.0;
475 sprintf(cTagV,"UY%02d",iDet);
476 gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
477 // G10 layer (support structure / honeycomb)
480 parCha[2] = fgkSuThick/2.0;
481 sprintf(cTagV,"UM%02d",iDet);
482 gMC->Gsvolu(cTagV,"BOX ",idtmed[1310-1],parCha,kNparCha);
483 // G10 layer (PCB readout board)
486 parCha[2] = fgkRpThick/2;
487 sprintf(cTagV,"UN%02d",iDet);
488 gMC->Gsvolu(cTagV,"BOX ",idtmed[1313-1],parCha,kNparCha);
489 // Cu layer (traces in readout board)
492 parCha[2] = fgkRcThick/2.0;
493 sprintf(cTagV,"UO%02d",iDet);
494 gMC->Gsvolu(cTagV,"BOX ",idtmed[1306-1],parCha,kNparCha);
495 // Cu layer (other material on in readout board)
498 parCha[2] = fgkRoThick/2.0;
499 sprintf(cTagV,"UV%02d",iDet);
500 gMC->Gsvolu(cTagV,"BOX ",idtmed[1304-1],parCha,kNparCha);
502 // Position the layers in the chambers
506 // Rohacell layer (radiator)
508 sprintf(cTagV,"UH%02d",iDet);
509 sprintf(cTagM,"UC%02d",iDet);
510 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
511 // Xe/Isobutane layer (drift volume)
513 sprintf(cTagV,"UJ%02d",iDet);
514 sprintf(cTagM,"UB%02d",iDet);
515 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
517 // Xe/Isobutane layer (amplification volume)
519 sprintf(cTagV,"UK%02d",iDet);
520 sprintf(cTagM,"UE%02d",iDet);
521 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
522 // Cu layer (wire plane inside amplification volume)
524 sprintf(cTagV,"UW%02d",iDet);
525 sprintf(cTagM,"UK%02d",iDet);
526 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
527 // Readout part + support plane
528 // Cu layer (pad plane)
530 sprintf(cTagV,"UL%02d",iDet);
531 sprintf(cTagM,"UG%02d",iDet);
532 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
533 // Epoxy layer (glue)
535 sprintf(cTagV,"UY%02d",iDet);
536 sprintf(cTagM,"UG%02d",iDet);
537 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
538 // G10 layer (support structure)
540 sprintf(cTagV,"UM%02d",iDet);
541 sprintf(cTagM,"UG%02d",iDet);
542 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
543 // G10 layer (PCB readout board)
545 sprintf(cTagV,"UN%02d",iDet);
546 sprintf(cTagM,"UG%02d",iDet);
547 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
548 // Cu layer (traces in readout board)
550 sprintf(cTagV,"UO%02d",iDet);
551 sprintf(cTagM,"UG%02d",iDet);
552 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
553 // Cu layer (other materials on readout board)
555 sprintf(cTagV,"UV%02d",iDet);
556 sprintf(cTagM,"UG%02d",iDet);
557 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
559 // Position the inner volumes of the chambers in the frames
562 // The inner part of the radiator
564 sprintf(cTagV,"UC%02d",iDet);
565 sprintf(cTagM,"UX%02d",iDet);
566 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
567 // The glue around the radiator
568 zpos = fgkCraH/2.0 - fgkCdrH/2.0 - fgkCraH/2.0;
569 sprintf(cTagV,"UX%02d",iDet);
570 sprintf(cTagM,"UB%02d",iDet);
571 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
572 // The lower Wacosit frame inside the aluminum frame
574 sprintf(cTagV,"UB%02d",iDet);
575 sprintf(cTagM,"UA%02d",iDet);
576 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
577 // The inside of the upper Wacosit frame
579 sprintf(cTagV,"UE%02d",iDet);
580 sprintf(cTagM,"UD%02d",iDet);
581 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
582 // The inside of the upper aluminum frame
584 sprintf(cTagV,"UG%02d",iDet);
585 sprintf(cTagM,"UF%02d",iDet);
586 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
588 // Position the frames of the chambers in the TRD mother volume
590 ypos = fClength[iplan][0] + fClength[iplan][1] + fClength[iplan][2]/2.0;
591 for (Int_t ic = 0; ic < icham; ic++) {
592 ypos -= fClength[iplan][ic];
594 ypos -= fClength[iplan][icham]/2.0;
595 zpos = fgkVrocsm + fgkSMpltT + fgkCraH/2.0 + fgkCdrH/2.0 - fgkSheight/2.0
596 + iplan * (fgkCH + fgkVspace);
597 // The lower aluminum frame, radiator + drift region
598 sprintf(cTagV,"UA%02d",iDet);
599 fChamberUAorig[iDet][0] = xpos;
600 fChamberUAorig[iDet][1] = ypos;
601 fChamberUAorig[iDet][2] = zpos;
602 // The upper G10 frame, amplification region
603 sprintf(cTagV,"UD%02d",iDet);
604 zpos += fgkCamH/2.0 + fgkCraH/2.0 + fgkCdrH/2.0;
605 fChamberUDorig[iDet][0] = xpos;
606 fChamberUDorig[iDet][1] = ypos;
607 fChamberUDorig[iDet][2] = zpos;
608 // The upper aluminum frame
609 sprintf(cTagV,"UF%02d",iDet);
610 zpos += fgkCroH/2.0 + fgkCamH/2.0;
611 fChamberUForig[iDet][0] = xpos;
612 fChamberUForig[iDet][1] = ypos;
613 fChamberUForig[iDet][2] = zpos;
618 // Create the volumes of the super module frame
621 // Create the volumes of the services
622 CreateServices(idtmed);
624 for (Int_t icham = 0; icham < kNcham; icham++) {
625 for (Int_t iplan = 0; iplan < kNplan; iplan++) {
626 GroupChamber(iplan,icham,idtmed);
633 gMC->Gspos("UTI1",1,"UTS1",xpos,ypos,zpos,0,"ONLY");
638 gMC->Gspos("UTS1",1,"UTR1",xpos,ypos,zpos,0,"ONLY");
640 // Put the TRD volumes into the space frame mother volumes
641 // if enabled via status flag
645 for (Int_t isect = 0; isect < kNsect; isect++) {
646 if (fSMstatus[isect]) {
647 sprintf(cTagV,"BTRD%d",isect);
648 gMC->Gspos("UTR1",1,cTagV,xpos,ypos,zpos,0,"ONLY");
654 //_____________________________________________________________________________
655 void AliTRDgeometry::CreateFrame(Int_t *idtmed)
658 // Create the geometry of the frame of the supermodule
660 // Names of the TRD services volumina
662 // USRL Support rails for the chambers (Al)
663 // USxx Support cross bars between the chambers (Al)
664 // USHx Horizontal connection between the cross bars (Al)
665 // USLx Long corner ledges (Al)
677 // The rotation matrices
678 const Int_t kNmatrix = 4;
679 Int_t matrix[kNmatrix];
680 gMC->Matrix(matrix[0], 100.0, 0.0, 90.0, 90.0, 10.0, 0.0);
681 gMC->Matrix(matrix[1], 80.0, 0.0, 90.0, 90.0, 10.0, 180.0);
682 gMC->Matrix(matrix[2], 90.0, 0.0, 0.0, 0.0, 90.0, 90.0);
683 gMC->Matrix(matrix[3], 90.0, 180.0, 0.0, 180.0, 90.0, 90.0);
686 // The chamber support rails
689 const Float_t kSRLwid = 2.00;
690 const Float_t kSRLhgt = 2.3;
691 const Float_t kSRLdst = 1.0;
692 const Int_t kNparSRL = 3;
693 Float_t parSRL[kNparSRL];
694 parSRL[0] = kSRLwid /2.0;
695 parSRL[1] = fgkSlength/2.0;
696 parSRL[2] = kSRLhgt /2.0;
697 gMC->Gsvolu("USRL","BOX ",idtmed[1301-1],parSRL,kNparSRL);
702 for (iplan = 0; iplan < kNplan; iplan++) {
703 xpos = fCwidth[iplan]/2.0 + kSRLwid/2.0 + kSRLdst;
705 zpos = fgkVrocsm + fgkSMpltT + fgkCraH + fgkCdrH + fgkCamH
707 + iplan * (fgkCH + fgkVspace);
708 gMC->Gspos("USRL",iplan+1 ,"UTI1", xpos,ypos,zpos,0,"ONLY");
709 gMC->Gspos("USRL",iplan+1+ kNplan,"UTI1",-xpos,ypos,zpos,0,"ONLY");
713 // The cross bars between the chambers
716 const Float_t kSCBwid = 1.0;
717 const Float_t kSCBthk = 2.0;
718 const Float_t kSCHhgt = 0.3;
720 const Int_t kNparSCB = 3;
721 Float_t parSCB[kNparSCB];
722 parSCB[1] = kSCBwid/2.0;
723 parSCB[2] = fgkCH /2.0 + fgkVspace/2.0 - kSCHhgt;
725 const Int_t kNparSCI = 3;
726 Float_t parSCI[kNparSCI];
732 for (iplan = 0; iplan < kNplan; iplan++) {
734 // The aluminum of the cross bars
735 parSCB[0] = fCwidth[iplan]/2.0 + kSRLdst/2.0;
736 sprintf(cTagV,"USF%01d",iplan);
737 gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parSCB,kNparSCB);
739 // The empty regions in the cross bars
740 Float_t thkSCB = kSCBthk;
744 parSCI[2] = parSCB[2] - thkSCB;
745 parSCI[0] = parSCB[0]/4.0 - kSCBthk;
746 sprintf(cTagV,"USI%01d",iplan);
747 gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parSCI,kNparSCI);
749 sprintf(cTagV,"USI%01d",iplan);
750 sprintf(cTagM,"USF%01d",iplan);
753 xpos = parSCI[0] + thkSCB/2.0;
754 gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
755 xpos = - parSCI[0] - thkSCB/2.0;
756 gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
757 xpos = 3.0 * parSCI[0] + 1.5 * thkSCB;
758 gMC->Gspos(cTagV,3,cTagM,xpos,ypos,zpos,0,"ONLY");
759 xpos = - 3.0 * parSCI[0] - 1.5 * thkSCB;
760 gMC->Gspos(cTagV,4,cTagM,xpos,ypos,zpos,0,"ONLY");
762 sprintf(cTagV,"USF%01d",iplan);
764 zpos = fgkVrocsm + fgkSMpltT + parSCB[2] - fgkSheight/2.0
765 + iplan * (fgkCH + fgkVspace);
767 ypos = fgkSlength/2.0 - kSCBwid/2.0;
768 gMC->Gspos(cTagV,1,"UTI1", xpos,ypos,zpos,0,"ONLY");
770 ypos = fClength[iplan][2]/2.0 + fClength[iplan][1];
771 gMC->Gspos(cTagV,2,"UTI1", xpos,ypos,zpos,0,"ONLY");
773 ypos = fClength[iplan][2]/2.0;
774 gMC->Gspos(cTagV,3,"UTI1", xpos,ypos,zpos,0,"ONLY");
776 ypos = - fClength[iplan][2]/2.0;
777 gMC->Gspos(cTagV,4,"UTI1", xpos,ypos,zpos,0,"ONLY");
779 ypos = - fClength[iplan][2]/2.0 - fClength[iplan][1];
780 gMC->Gspos(cTagV,5,"UTI1", xpos,ypos,zpos,0,"ONLY");
782 ypos = - fgkSlength/2.0 + kSCBwid/2.0;
783 gMC->Gspos(cTagV,6,"UTI1", xpos,ypos,zpos,0,"ONLY");
788 // The horizontal connections between the cross bars
791 const Int_t kNparSCH = 3;
792 Float_t parSCH[kNparSCH];
794 for (iplan = 1; iplan < kNplan-1; iplan++) {
796 parSCH[0] = fCwidth[iplan]/2.0;
797 parSCH[1] = (fClength[iplan+1][2]/2.0 + fClength[iplan+1][1]
798 - fClength[iplan ][2]/2.0 - fClength[iplan ][1])/2.0;
799 parSCH[2] = kSCHhgt/2.0;
801 sprintf(cTagV,"USH%01d",iplan);
802 gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parSCH,kNparSCH);
804 ypos = fClength[iplan][2]/2.0 + fClength[iplan][1] + parSCH[1];
805 zpos = fgkVrocsm + fgkSMpltT - kSCHhgt/2.0 - fgkSheight/2.0
806 + (iplan+1) * (fgkCH + fgkVspace);
807 gMC->Gspos(cTagV,1,"UTI1", xpos,ypos,zpos,0,"ONLY");
809 gMC->Gspos(cTagV,2,"UTI1", xpos,ypos,zpos,0,"ONLY");
814 // The long corner ledges
817 const Int_t kNparSCL = 3;
818 Float_t parSCL[kNparSCL];
819 const Int_t kNparSCLb = 11;
820 Float_t parSCLb[kNparSCLb];
823 // Thickness of the corner ledges
824 const Float_t kSCLthkUa = 0.6;
825 const Float_t kSCLthkUb = 0.6;
826 // Width of the corner ledges
827 const Float_t kSCLwidUa = 3.2;
828 const Float_t kSCLwidUb = 4.8;
829 // Position of the corner ledges
830 const Float_t kSCLposxUa = 0.7;
831 const Float_t kSCLposxUb = 3.3;
832 const Float_t kSCLposzUa = 1.6;
833 const Float_t kSCLposzUb = 0.3;
835 parSCL[0] = kSCLthkUa /2.0;
836 parSCL[1] = fgkSlength/2.0;
837 parSCL[2] = kSCLwidUa /2.0;
838 gMC->Gsvolu("USL1","BOX ",idtmed[1301-1],parSCL,kNparSCL);
839 xpos = fgkSwidth2/2.0 - fgkSMpltT - kSCLposxUa;
841 zpos = fgkSheight/2.0 - fgkSMpltT - kSCLposzUa;
842 gMC->Gspos("USL1",1,"UTI1", xpos,ypos,zpos,matrix[0],"ONLY");
844 gMC->Gspos("USL1",2,"UTI1", xpos,ypos,zpos,matrix[1],"ONLY");
846 parSCL[0] = kSCLwidUb /2.0;
847 parSCL[1] = fgkSlength/2.0;
848 parSCL[2] = kSCLthkUb /2.0;
849 gMC->Gsvolu("USL2","BOX ",idtmed[1301-1],parSCL,kNparSCL);
850 xpos = fgkSwidth2/2.0 - fgkSMpltT - kSCLposxUb;
852 zpos = fgkSheight/2.0 - fgkSMpltT - kSCLposzUb;
853 gMC->Gspos("USL2",1,"UTI1", xpos,ypos,zpos, 0,"ONLY");
855 gMC->Gspos("USL2",2,"UTI1", xpos,ypos,zpos, 0,"ONLY");
858 // Thickness of the corner ledges
859 const Float_t kSCLthkLa = 2.464;
860 const Float_t kSCLthkLb = 1.0;
861 // Width of the corner ledges
862 const Float_t kSCLwidLa = 8.5;
863 const Float_t kSCLwidLb = 3.3;
864 // Position of the corner ledges
865 const Float_t kSCLposxLa = 0.0;
866 const Float_t kSCLposxLb = 2.6;
867 const Float_t kSCLposzLa = -4.25;
868 const Float_t kSCLposzLb = -0.5;
871 parSCLb[ 0] = fgkSlength/2.0;
874 parSCLb[ 3] = kSCLwidLa /2.0;
875 parSCLb[ 4] = kSCLthkLb /2.0;
876 parSCLb[ 5] = kSCLthkLa /2.0;
878 parSCLb[ 7] = kSCLwidLa /2.0;
879 parSCLb[ 8] = kSCLthkLb /2.0;
880 parSCLb[ 9] = kSCLthkLa /2.0;
882 gMC->Gsvolu("USL3","TRAP",idtmed[1301-1],parSCLb,kNparSCLb);
883 xpos = fgkSwidth1/2.0 - fgkSMpltT - kSCLposxLa;
885 zpos = - fgkSheight/2.0 + fgkSMpltT - kSCLposzLa;
886 gMC->Gspos("USL3",1,"UTI1", xpos,ypos,zpos,matrix[2],"ONLY");
888 gMC->Gspos("USL3",2,"UTI1", xpos,ypos,zpos,matrix[3],"ONLY");
890 parSCL[0] = kSCLwidLb /2.0;
891 parSCL[1] = fgkSlength/2.0;
892 parSCL[2] = kSCLthkLb /2.0;
893 gMC->Gsvolu("USL4","BOX ",idtmed[1301-1],parSCL,kNparSCL);
894 xpos = fgkSwidth1/2.0 - fgkSMpltT - kSCLposxLb;
896 zpos = - fgkSheight/2.0 + fgkSMpltT - kSCLposzLb;
897 gMC->Gspos("USL4",1,"UTI1", xpos,ypos,zpos, 0,"ONLY");
899 gMC->Gspos("USL4",2,"UTI1", xpos,ypos,zpos, 0,"ONLY");
903 //_____________________________________________________________________________
904 void AliTRDgeometry::CreateServices(Int_t *idtmed)
907 // Create the geometry of the services
909 // Names of the TRD services volumina
911 // UTCL Cooling arterias (Al)
912 // UTCW Cooling arterias (Water)
913 // UUxx Volumes for the services at the chambers (Air)
914 // UTPW Power bars (Cu)
915 // UTCP Cooling pipes (Fe)
916 // UTCH Cooling pipes (Water)
917 // UTPL Power lines (Cu)
918 // UMCM Readout MCMs (G10/Cu/Si)
930 // The rotation matrices
931 const Int_t kNmatrix = 4;
932 Int_t matrix[kNmatrix];
933 gMC->Matrix(matrix[0], 100.0, 0.0, 90.0, 90.0, 10.0, 0.0);
934 gMC->Matrix(matrix[1], 80.0, 0.0, 90.0, 90.0, 10.0, 180.0);
935 gMC->Matrix(matrix[2], 0.0, 0.0, 90.0, 90.0, 90.0, 0.0);
936 gMC->Matrix(matrix[3], 180.0, 0.0, 90.0, 90.0, 90.0, 180.0);
938 AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
940 AliError("Could not get common parameters\n");
945 // The cooling arterias
948 // Width of the cooling arterias
949 const Float_t kCOLwid = 0.8;
950 // Height of the cooling arterias
951 const Float_t kCOLhgt = 6.5;
952 // Positioning of the cooling
953 const Float_t kCOLposx = 1.8;
954 const Float_t kCOLposz = -0.1;
955 // Thickness of the walls of the cooling arterias
956 const Float_t kCOLthk = 0.1;
957 const Int_t kNparCOL = 3;
958 Float_t parCOL[kNparCOL];
959 parCOL[0] = kCOLwid /2.0;
960 parCOL[1] = fgkSlength/2.0;
961 parCOL[2] = kCOLhgt /2.0;
962 gMC->Gsvolu("UTCL","BOX ",idtmed[1308-1],parCOL,kNparCOL);
963 parCOL[0] -= kCOLthk;
964 parCOL[1] = fgkSlength/2.0;
965 parCOL[2] -= kCOLthk;
966 gMC->Gsvolu("UTCW","BOX ",idtmed[1314-1],parCOL,kNparCOL);
971 gMC->Gspos("UTCW",1,"UTCL", xpos,ypos,zpos,0,"ONLY");
973 for (iplan = 1; iplan < kNplan; iplan++) {
975 xpos = fCwidth[iplan]/2.0 + kCOLwid/2.0 + kCOLposx;
977 zpos = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
978 + iplan * (fgkCH + fgkVspace);
979 gMC->Gspos("UTCL",iplan ,"UTI1", xpos,ypos,zpos,matrix[0],"ONLY");
980 gMC->Gspos("UTCL",iplan+kNplan,"UTI1",-xpos,ypos,zpos,matrix[1],"ONLY");
984 // The upper most layer (reaching into TOF acceptance)
985 xpos = fCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
987 zpos = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
988 gMC->Gspos("UTCL",6 ,"UTI1", xpos,ypos,zpos,matrix[3],"ONLY");
989 gMC->Gspos("UTCL",6+kNplan,"UTI1",-xpos,ypos,zpos,matrix[3],"ONLY");
995 const Float_t kPWRwid = 0.6;
996 const Float_t kPWRhgt = 5.0;
997 const Float_t kPWRposx = 1.4;
998 const Float_t kPWRposz = 1.9;
999 const Int_t kNparPWR = 3;
1000 Float_t parPWR[kNparPWR];
1001 parPWR[0] = kPWRwid /2.0;
1002 parPWR[1] = fgkSlength/2.0;
1003 parPWR[2] = kPWRhgt /2.0;
1004 gMC->Gsvolu("UTPW","BOX ",idtmed[1325-1],parPWR,kNparPWR);
1006 for (iplan = 1; iplan < kNplan; iplan++) {
1008 xpos = fCwidth[iplan]/2.0 + kPWRwid/2.0 + kPWRposx;
1010 zpos = fgkVrocsm + fgkSMpltT + kPWRhgt/2.0 - fgkSheight/2.0 + kPWRposz
1011 + iplan * (fgkCH + fgkVspace);
1012 gMC->Gspos("UTPW",iplan ,"UTI1", xpos,ypos,zpos,matrix[0],"ONLY");
1013 gMC->Gspos("UTPW",iplan+kNplan,"UTI1",-xpos,ypos,zpos,matrix[1],"ONLY");
1017 // The upper most layer (reaching into TOF acceptance)
1018 xpos = fCwidth[5]/2.0 + kPWRhgt/2.0 - 1.3;
1020 zpos = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
1021 gMC->Gspos("UTPW",6 ,"UTI1", xpos,ypos,zpos,matrix[3],"ONLY");
1022 gMC->Gspos("UTPW",6+kNplan,"UTI1",-xpos,ypos,zpos,matrix[3],"ONLY");
1025 // The volumes for the services at the chambers
1028 const Int_t kNparServ = 3;
1029 Float_t parServ[kNparServ];
1031 for (icham = 0; icham < kNcham; icham++) {
1032 for (iplan = 0; iplan < kNplan; iplan++) {
1034 Int_t iDet = GetDetectorSec(iplan,icham);
1036 sprintf(cTagV,"UU%02d",iDet);
1037 parServ[0] = fCwidth[iplan] /2.0;
1038 parServ[1] = fClength[iplan][icham]/2.0 - fgkHspace/2.0;
1039 parServ[2] = fgkVspace /2.0 - 0.742/2.0;
1040 fChamberUUboxd[iDet][0] = parServ[0];
1041 fChamberUUboxd[iDet][1] = parServ[1];
1042 fChamberUUboxd[iDet][2] = parServ[2];
1043 gMC->Gsvolu(cTagV,"BOX",idtmed[1302-1],parServ,kNparServ);
1046 ypos = fClength[iplan][0] + fClength[iplan][1] + fClength[iplan][2]/2.0;
1047 for (Int_t ic = 0; ic < icham; ic++) {
1048 ypos -= fClength[iplan][ic];
1050 ypos -= fClength[iplan][icham]/2.0;
1051 zpos = fgkVrocsm + fgkSMpltT + fgkCH + fgkVspace/2.0 - fgkSheight/2.0
1052 + iplan * (fgkCH + fgkVspace);
1054 fChamberUUorig[iDet][0] = xpos;
1055 fChamberUUorig[iDet][1] = ypos;
1056 fChamberUUorig[iDet][2] = zpos;
1062 // The cooling pipes inside the service volumes
1065 const Int_t kNparTube = 3;
1066 Float_t parTube[kNparTube];
1067 // The cooling pipes
1071 gMC->Gsvolu("UTCP","TUBE",idtmed[1324-1],parTube,0);
1072 // The cooling water
1074 parTube[1] = 0.2/2.0;
1076 gMC->Gsvolu("UTCH","TUBE",idtmed[1314-1],parTube,kNparTube);
1077 // Water inside the cooling pipe
1081 gMC->Gspos("UTCH",1,"UTCP",xpos,ypos,zpos,0,"ONLY");
1083 // Position the cooling pipes in the mother volume
1084 const Int_t kNpar = 3;
1086 for (icham = 0; icham < kNcham; icham++) {
1087 for (iplan = 0; iplan < kNplan; iplan++) {
1088 Int_t iDet = GetDetectorSec(iplan,icham);
1089 Int_t iCopy = GetDetector(iplan,icham,0) * 100;
1090 Int_t nMCMrow = commonParam->GetRowMax(iplan,icham,0);
1091 Float_t ySize = (GetChamberLength(iplan,icham) - 2.0*fgkRpadW)
1092 / ((Float_t) nMCMrow);
1093 sprintf(cTagV,"UU%02d",iDet);
1094 for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
1096 ypos = (0.5 + iMCMrow) * ySize - 1.9
1097 - fClength[iplan][icham]/2.0 + fgkHspace/2.0;
1098 zpos = 0.0 + 0.742/2.0;
1100 par[1] = 0.3/2.0; // Thickness of the cooling pipes
1101 par[2] = fCwidth[iplan]/2.0;
1102 gMC->Gsposp("UTCP",iCopy+iMCMrow,cTagV,xpos,ypos,zpos
1103 ,matrix[2],"ONLY",par,kNpar);
1112 // The copper power lines
1116 gMC->Gsvolu("UTPL","TUBE",idtmed[1305-1],parTube,0);
1118 // Position the power lines in the mother volume
1119 for (icham = 0; icham < kNcham; icham++) {
1120 for (iplan = 0; iplan < kNplan; iplan++) {
1121 Int_t iDet = GetDetectorSec(iplan,icham);
1122 Int_t iCopy = GetDetector(iplan,icham,0) * 100;
1123 Int_t nMCMrow = commonParam->GetRowMax(iplan,icham,0);
1124 Float_t ySize = (GetChamberLength(iplan,icham) - 2.0*fgkRpadW)
1125 / ((Float_t) nMCMrow);
1126 sprintf(cTagV,"UU%02d",iDet);
1127 for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
1129 ypos = (0.5 + iMCMrow) * ySize - 1.0
1130 - fClength[iplan][icham]/2.0 + fgkHspace/2.0;
1131 zpos = -0.4 + 0.742/2.0;
1133 par[1] = 0.2/2.0; // Thickness of the power lines
1134 par[2] = fCwidth[iplan]/2.0;
1135 gMC->Gsposp("UTPL",iCopy+iMCMrow,cTagV,xpos,ypos,zpos
1136 ,matrix[2],"ONLY",par,kNpar);
1145 const Float_t kMCMx = 3.0;
1146 const Float_t kMCMy = 3.0;
1147 const Float_t kMCMz = 0.3;
1149 const Float_t kMCMpcTh = 0.1;
1150 const Float_t kMCMcuTh = 0.0215;
1151 const Float_t kMCMsiTh = 0.003;
1152 const Float_t kMCMcoTh = 0.1549;
1154 // The mother volume for the MCMs (air)
1155 const Int_t kNparMCM = 3;
1156 Float_t parMCM[kNparMCM];
1157 parMCM[0] = kMCMx /2.0;
1158 parMCM[1] = kMCMy /2.0;
1159 parMCM[2] = kMCMz /2.0;
1160 gMC->Gsvolu("UMCM","BOX",idtmed[1302-1],parMCM,kNparMCM);
1162 // The MCM carrier G10 layer
1163 parMCM[0] = kMCMx /2.0;
1164 parMCM[1] = kMCMy /2.0;
1165 parMCM[2] = kMCMpcTh/2.0;
1166 gMC->Gsvolu("UMC1","BOX",idtmed[1319-1],parMCM,kNparMCM);
1167 // The MCM carrier Cu layer
1168 parMCM[0] = kMCMx /2.0;
1169 parMCM[1] = kMCMy /2.0;
1170 parMCM[2] = kMCMcuTh/2.0;
1171 gMC->Gsvolu("UMC2","BOX",idtmed[1318-1],parMCM,kNparMCM);
1172 // The silicon of the chips
1173 parMCM[0] = kMCMx /2.0;
1174 parMCM[1] = kMCMy /2.0;
1175 parMCM[2] = kMCMsiTh/2.0;
1176 gMC->Gsvolu("UMC3","BOX",idtmed[1320-1],parMCM,kNparMCM);
1177 // The aluminum of the cooling plates
1178 parMCM[0] = kMCMx /2.0;
1179 parMCM[1] = kMCMy /2.0;
1180 parMCM[2] = kMCMcoTh/2.0;
1181 gMC->Gsvolu("UMC4","BOX",idtmed[1324-1],parMCM,kNparMCM);
1183 // Put the MCM material inside the MCM mother volume
1186 zpos = -kMCMz /2.0 + kMCMpcTh/2.0;
1187 gMC->Gspos("UMC1",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
1188 zpos += kMCMpcTh/2.0 + kMCMcuTh/2.0;
1189 gMC->Gspos("UMC2",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
1190 zpos += kMCMcuTh/2.0 + kMCMsiTh/2.0;
1191 gMC->Gspos("UMC3",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
1192 zpos += kMCMsiTh/2.0 + kMCMcoTh/2.0;
1193 gMC->Gspos("UMC4",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
1195 // Position the MCMs in the mother volume
1196 for (icham = 0; icham < kNcham; icham++) {
1197 for (iplan = 0; iplan < kNplan; iplan++) {
1198 Int_t iDet = GetDetectorSec(iplan,icham);
1199 Int_t iCopy = GetDetector(iplan,icham,0) * 1000;
1200 Int_t nMCMrow = commonParam->GetRowMax(iplan,icham,0);
1201 Float_t ySize = (GetChamberLength(iplan,icham) - 2.0*fgkRpadW)
1202 / ((Float_t) nMCMrow);
1204 Float_t xSize = (GetChamberWidth(iplan) - 2.0*fgkCpadW)
1205 / ((Float_t) nMCMcol);
1206 sprintf(cTagV,"UU%02d",iDet);
1207 for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
1208 for (Int_t iMCMcol = 0; iMCMcol < nMCMcol; iMCMcol++) {
1209 xpos = (0.5 + iMCMcol) * xSize + 1.0
1210 - fCwidth[iplan]/2.0;
1211 ypos = (0.5 + iMCMrow) * ySize + 1.0
1212 - fClength[iplan][icham]/2.0 + fgkHspace/2.0;
1213 zpos = -0.4 + 0.742/2.0;
1215 par[1] = 0.2/2.0; // Thickness of the power lines
1216 par[2] = fCwidth[iplan]/2.0;
1217 gMC->Gspos("UMCM",iCopy+iMCMrow*10+iMCMcol,cTagV
1218 ,xpos,ypos,zpos,0,"ONLY");
1227 //_____________________________________________________________________________
1228 void AliTRDgeometry::GroupChamber(Int_t iplan, Int_t icham, Int_t *idtmed)
1231 // Group volumes UA, UD, UF, UU in a single chamber (Air)
1232 // UA, UD, UF, UU are boxes
1236 const Int_t kNparCha = 3;
1238 Int_t iDet = GetDetectorSec(iplan,icham);
1248 for (Int_t i = 0; i < 3; i++) {
1249 xyzMin[i] = +9999.0;
1250 xyzMax[i] = -9999.0;
1253 for (Int_t i = 0; i < 3; i++) {
1255 xyzMin[i] = TMath::Min(xyzMin[i],fChamberUAorig[iDet][i]-fChamberUAboxd[iDet][i]);
1256 xyzMax[i] = TMath::Max(xyzMax[i],fChamberUAorig[iDet][i]+fChamberUAboxd[iDet][i]);
1258 xyzMin[i] = TMath::Min(xyzMin[i],fChamberUDorig[iDet][i]-fChamberUDboxd[iDet][i]);
1259 xyzMax[i] = TMath::Max(xyzMax[i],fChamberUDorig[iDet][i]+fChamberUDboxd[iDet][i]);
1261 xyzMin[i] = TMath::Min(xyzMin[i],fChamberUForig[iDet][i]-fChamberUFboxd[iDet][i]);
1262 xyzMax[i] = TMath::Max(xyzMax[i],fChamberUForig[iDet][i]+fChamberUFboxd[iDet][i]);
1264 xyzMin[i] = TMath::Min(xyzMin[i],fChamberUUorig[iDet][i]-fChamberUUboxd[iDet][i]);
1265 xyzMax[i] = TMath::Max(xyzMax[i],fChamberUUorig[iDet][i]+fChamberUUboxd[iDet][i]);
1267 xyzOrig[i] = 0.5*(xyzMax[i]+xyzMin[i]);
1268 xyzBoxd[i] = 0.5*(xyzMax[i]-xyzMin[i]);
1272 sprintf(cTagM,"UT%02d",iDet);
1273 gMC->Gsvolu(cTagM,"BOX ",idtmed[1302-1],xyzBoxd,kNparCha);
1275 sprintf(cTagV,"UA%02d",iDet);
1276 gMC->Gspos(cTagV,1,cTagM
1277 ,fChamberUAorig[iDet][0]-xyzOrig[0]
1278 ,fChamberUAorig[iDet][1]-xyzOrig[1]
1279 ,fChamberUAorig[iDet][2]-xyzOrig[2]
1282 sprintf(cTagV,"UZ%02d",iDet);
1283 gMC->Gspos(cTagV,1,cTagM
1284 ,fChamberUAorig[iDet][0]-xyzOrig[0] + fChamberUAboxd[iDet][0] - fgkCroW/2.0
1285 ,fChamberUAorig[iDet][1]-xyzOrig[1]
1286 ,fChamberUAorig[iDet][2]-xyzOrig[2] + fgkCraH/2.0 + fgkCdrH/2.0 - fgkCalW/2.0
1288 gMC->Gspos(cTagV,2,cTagM
1289 ,fChamberUAorig[iDet][0]-xyzOrig[0] - fChamberUAboxd[iDet][0] + fgkCroW/2.0
1290 ,fChamberUAorig[iDet][1]-xyzOrig[1]
1291 ,fChamberUAorig[iDet][2]-xyzOrig[2] + fgkCraH/2.0 + fgkCdrH/2.0 - fgkCalW/2.0
1294 sprintf(cTagV,"UD%02d",iDet);
1295 gMC->Gspos(cTagV,1,cTagM
1296 ,fChamberUDorig[iDet][0]-xyzOrig[0]
1297 ,fChamberUDorig[iDet][1]-xyzOrig[1]
1298 ,fChamberUDorig[iDet][2]-xyzOrig[2]
1301 sprintf(cTagV,"UF%02d",iDet);
1302 gMC->Gspos(cTagV,1,cTagM
1303 ,fChamberUForig[iDet][0]-xyzOrig[0]
1304 ,fChamberUForig[iDet][1]-xyzOrig[1]
1305 ,fChamberUForig[iDet][2]-xyzOrig[2]
1308 sprintf(cTagV,"UU%02d",iDet);
1309 gMC->Gspos(cTagV,1,cTagM
1310 ,fChamberUUorig[iDet][0]-xyzOrig[0]
1311 ,fChamberUUorig[iDet][1]-xyzOrig[1]
1312 ,fChamberUUorig[iDet][2]-xyzOrig[2]
1315 sprintf(cTagV,"UT%02d",iDet);
1316 gMC->Gspos(cTagV,1,"UTI1"
1324 //_____________________________________________________________________________
1325 Bool_t AliTRDgeometry::Rotate(Int_t d, Double_t *pos, Double_t *rot) const
1328 // Rotates all chambers in the position of sector 0 and transforms
1329 // the coordinates in the ALICE restframe <pos> into the
1330 // corresponding local frame <rot>.
1333 Int_t sector = GetSector(d);
1335 rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector];
1336 rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector];
1343 //_____________________________________________________________________________
1344 Bool_t AliTRDgeometry::RotateBack(Int_t d, Double_t *rot, Double_t *pos) const
1347 // Rotates a chambers from the position of sector 0 into its
1348 // original position and transforms the corresponding local frame
1349 // coordinates <rot> into the coordinates of the ALICE restframe <pos>.
1352 Int_t sector = GetSector(d);
1354 pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector];
1355 pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector];
1362 //_____________________________________________________________________________
1363 Int_t AliTRDgeometry::GetDetectorSec(Int_t p, Int_t c)
1366 // Convert plane / chamber into detector number for one single sector
1369 return (p + c * fgkNplan);
1373 //_____________________________________________________________________________
1374 Int_t AliTRDgeometry::GetDetector(Int_t p, Int_t c, Int_t s)
1377 // Convert plane / chamber / sector into detector number
1380 return (p + c * fgkNplan + s * fgkNplan * fgkNcham);
1384 //_____________________________________________________________________________
1385 Int_t AliTRDgeometry::GetPlane(Int_t d) const
1388 // Reconstruct the plane number from the detector number
1391 return ((Int_t) (d % fgkNplan));
1395 //_____________________________________________________________________________
1396 Int_t AliTRDgeometry::GetChamber(Int_t d) const
1399 // Reconstruct the chamber number from the detector number
1402 return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan);
1406 //_____________________________________________________________________________
1407 Int_t AliTRDgeometry::GetSector(Int_t d) const
1410 // Reconstruct the sector number from the detector number
1413 return ((Int_t) (d / (fgkNplan * fgkNcham)));
1417 //_____________________________________________________________________________
1418 Int_t AliTRDgeometry::GetPadRowFromMCM(Int_t irob, Int_t imcm) const
1421 // return on which row this mcm sits
1423 return fgkMCMrow*(irob/2) + imcm/fgkMCMrow;
1427 //_____________________________________________________________________________
1428 Int_t AliTRDgeometry::GetPadColFromADC(Int_t irob, Int_t imcm, Int_t iadc) const
1431 // return which pad is connected to this adc channel.
1433 // ADC channels 2 to 19 are connected directly to a pad via PASA.
1434 // ADC channels 0, 1 and 20 are not connected to the PASA on this MCM.
1435 // So the mapping (for MCM 0 on ROB 0 at least) is
1437 // ADC channel : 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1438 // Pad : x x 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 x
1439 // Func. returns: 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1
1441 // Here we assume that 21 ADC channels are transmitted. Maybe it will only be
1444 // This function maps also correctly the channels that cross from MCM to MCM
1445 // (ADC channels 0, 1, 20).
1448 return (17-(iadc-2)) + (imcm%fgkMCMrow)*fgkPadmax + GetRobSide(irob)*fgkColmax/2;
1452 //_____________________________________________________________________________
1453 Int_t AliTRDgeometry::GetMCMfromPad(Int_t irow, Int_t icol) const
1456 // return on which mcm this pad is
1458 if ( irow < 0 || icol < 0 || irow > fgkRowmaxC1 || icol > fgkColmax ) return -1;
1460 return (icol%(fgkColmax/2))/fgkPadmax + fgkMCMrow*(irow%fgkMCMrow);
1464 //_____________________________________________________________________________
1465 Int_t AliTRDgeometry::GetROBfromPad(Int_t irow, Int_t icol) const
1468 // return on which rob this pad is
1470 return (irow/fgkMCMrow)*2 + GetColSide(icol);
1474 //_____________________________________________________________________________
1475 Int_t AliTRDgeometry::GetRobSide(Int_t irob) const
1478 // return on which side this rob sits (A side = 0, B side = 1)
1480 if ( irob < 0 || irob >= fgkROBmaxC1 ) return -1;
1486 //_____________________________________________________________________________
1487 Int_t AliTRDgeometry::GetColSide(Int_t icol) const
1490 // return on which side this column sits (A side = 0, B side = 1)
1492 if ( icol < 0 || icol >= fgkColmax ) return -1;
1494 return icol/(fgkColmax/2);
1498 //_____________________________________________________________________________
1499 AliTRDgeometry *AliTRDgeometry::GetGeometry(AliRunLoader *runLoader)
1502 // Load the geometry from the galice file
1506 runLoader = AliRunLoader::GetRunLoader();
1509 AliErrorGeneral("AliTRDgeometry::GetGeometry","No run loader");
1513 TDirectory *saveDir = gDirectory;
1514 runLoader->CdGAFile();
1516 // Try from the galice.root file
1517 AliTRDgeometry *geom = (AliTRDgeometry *) gDirectory->Get("TRDgeometry");
1520 // If it is not in the file, try to get it from the run loader
1521 if (runLoader->GetAliRun()) {
1522 AliTRD *trd = (AliTRD *) runLoader->GetAliRun()->GetDetector("TRD");
1523 if (trd) geom = trd->GetGeometry();
1527 AliErrorGeneral("AliTRDgeometry::GetGeometry","Geometry not found");
1536 //_____________________________________________________________________________
1537 Bool_t AliTRDgeometry::ReadGeoMatrices()
1540 // Read the geo matrices from the current gGeoManager for each TRD detector
1542 // This fill three arrays of TGeoHMatrix, ordered by detector numbers
1544 // fMatrixArray: Used for transformation local <-> global ???
1545 // fMatrixCorrectionArray: Used for transformation local <-> tracking system
1546 // fMatrixGeo: Alignable objects
1553 fMatrixArray = new TObjArray(kNdet);
1554 fMatrixCorrectionArray = new TObjArray(kNdet);
1555 fMatrixGeo = new TObjArray(kNdet);
1557 for (Int_t iLayer = AliAlignObj::kTRD1; iLayer <= AliAlignObj::kTRD6; iLayer++) {
1558 for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++) {
1560 // Find the path to the different alignable objects (ROCs)
1561 UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,iModule);
1562 const char *symname = AliAlignObj::SymName(volid);
1563 TGeoPNEntry *pne = gGeoManager->GetAlignableEntry(symname);
1564 const char *path = symname;
1566 path = pne->GetTitle();
1568 if (!gGeoManager->cd(path)) {
1572 // Get the geo matrix of the current alignable object
1573 // and add it to the corresponding list
1574 TGeoHMatrix *matrix = gGeoManager->GetCurrentMatrix();
1575 Int_t iplane = iLayer - AliAlignObj::kTRD1;
1576 Int_t isector = iModule / Ncham();
1577 Int_t ichamber = iModule % Ncham();
1578 Int_t idet = GetDetector(iplane,ichamber,isector);
1579 fMatrixGeo->AddAt(new TGeoHMatrix(* matrix),idet);
1581 // Construct the geo matrix for the local <-> global transformation
1582 // and add it to the corresponding list.
1583 // In addition to the original geo matrix also a rotation of the
1584 // kind z-x-y to x-y--z is applied.
1585 TGeoRotation rotMatrixA;
1586 rotMatrixA.RotateY(90);
1587 rotMatrixA.RotateX(90);
1588 TGeoHMatrix matrixGlobal(rotMatrixA.Inverse());
1589 matrixGlobal.MultiplyLeft(matrix);
1590 fMatrixArray->AddAt(new TGeoHMatrix(matrixGlobal),idet);
1592 // Construct the geo matrix for the cluster transformation
1593 // and add it to the corresponding list.
1594 // In addition to the original geo matrix also a rotation of the
1595 // kind x-y--z to z-x-y and a rotation by the sector angle is applied.
1596 Double_t sectorAngle = 20.0 * (isector % 18) + 10.0;
1597 TGeoHMatrix rotMatrixB(rotMatrixA.Inverse());
1598 rotMatrixB.MultiplyLeft(matrix);
1599 TGeoHMatrix rotSector;
1600 rotSector.RotateZ(sectorAngle);
1601 rotMatrixB.MultiplyLeft(&rotSector);
1602 fMatrixCorrectionArray->AddAt(new TGeoHMatrix(rotMatrixB),idet);