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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
9e1a0ddb | 18 | Revision 1.38 2001/05/08 16:03:06 kowal2 |
19 | Geometry update according to the latest technical spec. | |
20 | ||
cea9b4f7 | 21 | Revision 1.37 2001/04/27 15:23:07 kowal2 |
22 | Correct materian in the central part of the inner containment vessel | |
23 | ||
90222263 | 24 | Revision 1.36 2001/04/26 06:15:12 kowal2 |
25 | Corrected bug in the inner containment vessel (cones) | |
26 | ||
f4900c61 | 27 | Revision 1.35 2001/04/24 11:17:33 kowal2 |
28 | New TPC geometry. | |
29 | ||
79575d04 | 30 | Revision 1.34 2001/04/23 10:20:18 hristov |
31 | Constant casted to avoid ambiguity | |
32 | ||
07521998 | 33 | Revision 1.33 2001/04/20 08:16:47 kowal2 |
34 | Protection against too small betaGamma. Thanks to Ivana and Yves. | |
35 | ||
595bf2c3 | 36 | Revision 1.32 2001/03/13 13:07:34 kowal2 |
37 | Corrected bug in the TPC mother volume geometry. | |
38 | Thanks to A. Morsch | |
39 | ||
7ab50f40 | 40 | Revision 1.31 2000/11/30 11:48:50 kowal2 |
41 | TLorentzVector.h adde to satisfy the latest changes by Federico | |
42 | ||
a383b30d | 43 | Revision 1.30 2000/11/14 10:48:57 kowal2 |
44 | Correct material used for TSA4. Thanks to J. Barbosa. | |
45 | ||
2c668420 | 46 | Revision 1.29 2000/11/06 17:24:10 kowal2 |
47 | Corrected bug in the outer containment vessel and | |
48 | the outer field cage geometry. | |
49 | Thanks to J. Barbosa. | |
50 | ||
720b23b8 | 51 | Revision 1.28 2000/11/02 16:55:24 kowal2 |
52 | Corrected bug in the inner containment vessel geometry. | |
53 | Thanks to J. Belikov | |
54 | ||
08db548a | 55 | Revision 1.27 2000/11/02 07:24:11 kowal2 |
56 | Correction in the TPC geometry. | |
57 | Changes due to the new hit structure. | |
58 | ||
6a905708 | 59 | Revision 1.26 2000/10/05 16:16:29 kowal2 |
60 | Corrections of the hit recording algorithm. | |
61 | ||
d4c354b9 | 62 | Revision 1.25 2000/10/02 21:28:18 fca |
63 | Removal of useless dependecies via forward declarations | |
64 | ||
94de3818 | 65 | Revision 1.24 2000/08/28 10:02:30 kowal2 |
66 | Corrected bug in the StepManager | |
67 | ||
930ee558 | 68 | Revision 1.23 2000/07/10 20:57:39 hristov |
69 | Update of TPC code and macros by M.Kowalski | |
70 | ||
37831078 | 71 | Revision 1.22 2000/06/30 12:07:50 kowal2 |
72 | Updated from the TPC-PreRelease branch | |
73 | ||
73042f01 | 74 | Revision 1.21.2.4 2000/06/26 07:39:42 kowal2 |
75 | Changes to obey the coding rules | |
76 | ||
77 | Revision 1.21.2.3 2000/06/25 08:38:41 kowal2 | |
78 | Splitted from AliTPCtracking | |
79 | ||
80 | Revision 1.21.2.2 2000/06/16 12:58:13 kowal2 | |
81 | Changed parameter settings | |
82 | ||
83 | Revision 1.21.2.1 2000/06/09 07:15:07 kowal2 | |
84 | ||
85 | Defaults loaded automatically (hard-wired) | |
86 | Optional parameters can be set via macro called in the constructor | |
87 | ||
88 | Revision 1.21 2000/05/15 10:00:30 kowal2 | |
89 | Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova | |
90 | ||
e94dd9ca | 91 | Revision 1.20 2000/04/17 09:37:33 kowal2 |
92 | removed obsolete AliTPCDigitsDisplay.C | |
93 | ||
cc80f89e | 94 | Revision 1.19.8.2 2000/04/10 08:31:52 kowal2 |
95 | ||
96 | Different geometry for different sectors | |
97 | Updated readout chambers | |
98 | Some modifications to StepManager by J.Belikov | |
99 | ||
100 | Revision 1.19.8.1 2000/04/10 07:56:53 kowal2 | |
101 | Not used anymore - removed | |
102 | ||
103 | Revision 1.19 1999/11/04 17:28:07 fca | |
104 | Correct barrel part of HV Degrader | |
105 | ||
a5371c42 | 106 | Revision 1.18 1999/10/14 16:52:08 fca |
107 | Only use PDG codes and not GEANT ones | |
108 | ||
69e40cce | 109 | Revision 1.17 1999/10/08 06:27:23 fca |
110 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
111 | ||
d183a600 | 112 | Revision 1.16 1999/10/04 13:39:54 fca |
113 | Correct array index problem | |
114 | ||
cdde5b1e | 115 | Revision 1.15 1999/09/29 09:24:34 fca |
116 | Introduction of the Copyright and cvs Log | |
117 | ||
4c039060 | 118 | */ |
119 | ||
73042f01 | 120 | // |
fe4da5cc | 121 | /////////////////////////////////////////////////////////////////////////////// |
122 | // // | |
123 | // Time Projection Chamber version 2 -- detailed TPC and slow simulation // | |
124 | // // | |
125 | //Begin_Html | |
126 | /* | |
1439f98e | 127 | <img src="picts/AliTPCv2Class.gif"> |
fe4da5cc | 128 | */ |
129 | //End_Html | |
130 | // // | |
131 | // // | |
132 | /////////////////////////////////////////////////////////////////////////////// | |
2a49965d | 133 | #include <stdlib.h> |
fe4da5cc | 134 | |
135 | #include <TMath.h> | |
bcac8ae4 | 136 | |
fe4da5cc | 137 | #include "AliTPCv2.h" |
cc80f89e | 138 | #include "AliTPCDigitsArray.h" |
fe4da5cc | 139 | #include "AliRun.h" |
94de3818 | 140 | #include "AliMC.h" |
fe4da5cc | 141 | #include "AliConst.h" |
69e40cce | 142 | #include "AliPDG.h" |
73042f01 | 143 | #include "AliTPCParam.h" |
144 | #include "AliTPCParamSR.h" | |
6a905708 | 145 | #include "AliTPCTrackHits.h" |
a383b30d | 146 | #include "TLorentzVector.h" |
6a905708 | 147 | |
8c555625 | 148 | |
fe4da5cc | 149 | ClassImp(AliTPCv2) |
150 | ||
151 | //_____________________________________________________________________________ | |
152 | AliTPCv2::AliTPCv2(const char *name, const char *title) : | |
153 | AliTPC(name, title) | |
154 | { | |
155 | // | |
156 | // Standard constructor for Time Projection Chamber version 2 | |
157 | // | |
37831078 | 158 | fIdSens=0; |
159 | fIdLSec=0; | |
160 | fIdUSec=0; | |
161 | ||
fe4da5cc | 162 | SetBufferSize(128000); |
73042f01 | 163 | |
164 | SetGasMixt(2,20,10,-1,0.9,0.1,0.); // Ne-CO2 90-10 | |
165 | ||
166 | // Default sectors | |
167 | ||
168 | SetSecAL(4); | |
169 | SetSecAU(4); | |
170 | SetSecLows(1, 2, 3, 19, 20, 21); | |
171 | SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1); | |
37831078 | 172 | SetSens(1); // sensitive strips set |
73042f01 | 173 | |
174 | if (fTPCParam) | |
175 | fTPCParam->Write(fTPCParam->GetTitle()); | |
fe4da5cc | 176 | } |
177 | ||
178 | //_____________________________________________________________________________ | |
179 | void AliTPCv2::CreateGeometry() | |
180 | { | |
181 | // | |
182 | // Create the geometry of Time Projection Chamber version 2 | |
183 | // | |
184 | //Begin_Html | |
185 | /* | |
37831078 | 186 | <img src="picts/AliTPC.gif"> |
fe4da5cc | 187 | */ |
188 | //End_Html | |
189 | //Begin_Html | |
190 | /* | |
1439f98e | 191 | <img src="picts/AliTPCv2Tree.gif"> |
fe4da5cc | 192 | */ |
193 | //End_Html | |
194 | ||
8c555625 | 195 | |
1283eee5 | 196 | Int_t *idtmed = fIdtmed->GetArray(); |
197 | ||
37831078 | 198 | Float_t dm[50]; |
62a73ee5 | 199 | Int_t idrotm[120]; |
1283eee5 | 200 | |
201 | Int_t nRotMat = 0; | |
202 | ||
d4c354b9 | 203 | Int_t i,ifl1=0; |
1283eee5 | 204 | |
37831078 | 205 | // number of sectors |
206 | ||
1283eee5 | 207 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; |
208 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
fe4da5cc | 209 | |
210 | // --------------------------------------------------- | |
211 | // sector specification check | |
212 | // --------------------------------------------------- | |
213 | if (fSecAL >= 0) { | |
214 | ifl1 = 0; | |
215 | ||
216 | for (i = 0; i < 6; ++i) { | |
1283eee5 | 217 | if (fSecLows[i] >= 0 && fSecLows[i] < 2*nInnerSector) { |
fe4da5cc | 218 | ifl1 = 1; |
9e1a0ddb | 219 | printf("%s: *** SECTOR %d selected\n",ClassName(),fSecLows[i]); |
fe4da5cc | 220 | } |
221 | } | |
222 | ||
223 | } else { | |
9e1a0ddb | 224 | printf("%s: *** ALL LOWER SECTORS SELECTED ***\n",ClassName()); |
8c555625 | 225 | ifl1 = 1; |
fe4da5cc | 226 | } |
227 | ||
d4c354b9 | 228 | if (ifl1 == 0) { |
9e1a0ddb | 229 | printf("%s: *** ERROR: AT LEAST ONE LOWER SECTOR MUST BE SPECIFIED ***\n",ClassName()); |
230 | printf("%s: !!! PROGRAM STOPPED !!!\n",ClassName()); | |
d4c354b9 | 231 | exit(1); |
232 | } | |
233 | ||
fe4da5cc | 234 | if (fSecAU >= 0) { |
fe4da5cc | 235 | |
236 | for (i = 0; i < 12; ++i) { | |
1283eee5 | 237 | if (fSecUps[i] > 2*nInnerSector-1 && |
238 | fSecUps[i] < 2*(nInnerSector+nOuterSector)) { | |
9e1a0ddb | 239 | printf("%s: *** SECTOR %d selected\n",ClassName(),fSecUps[i]); |
fe4da5cc | 240 | } |
241 | } | |
242 | ||
243 | } else { | |
9e1a0ddb | 244 | printf("%s: *** ALL UPPER SECTORS SELECTED ***\n",ClassName()); |
fe4da5cc | 245 | } |
246 | ||
d4c354b9 | 247 | |
37831078 | 248 | |
249 | //-------------------------------------------------------------------- | |
250 | ||
251 | // | |
79575d04 | 252 | // Mother volume TPC (Air) - all volumes will be positioned in it |
37831078 | 253 | // |
79575d04 | 254 | |
37831078 | 255 | dm[0]=0.; |
256 | dm[1]=360.; | |
79575d04 | 257 | dm[2]=8.; |
1283eee5 | 258 | |
37831078 | 259 | // |
1283eee5 | 260 | |
79575d04 | 261 | dm[3]=-283.7; |
262 | dm[4]=65.6; | |
263 | dm[5]=278.; | |
1283eee5 | 264 | |
37831078 | 265 | // |
1283eee5 | 266 | |
79575d04 | 267 | dm[6]=-253.6; |
268 | dm[7]=65.6; | |
269 | dm[8]=278.; | |
1283eee5 | 270 | |
37831078 | 271 | // |
1283eee5 | 272 | |
79575d04 | 273 | dm[9]=-73.3; |
274 | dm[10]=60.9; | |
275 | dm[11]=278.; | |
1283eee5 | 276 | |
37831078 | 277 | // |
1283eee5 | 278 | |
79575d04 | 279 | dm[12]=-73.3; |
280 | dm[13]=56.9; | |
281 | dm[14]=278.; | |
1283eee5 | 282 | |
37831078 | 283 | // |
1283eee5 | 284 | |
79575d04 | 285 | dm[15]=73.3; |
286 | dm[16]=56.9; | |
287 | dm[17]=278.; | |
1283eee5 | 288 | |
37831078 | 289 | // |
1283eee5 | 290 | |
79575d04 | 291 | dm[18]=73.3; |
292 | dm[19]=60.9; | |
293 | dm[20]=278.; | |
1283eee5 | 294 | |
37831078 | 295 | // |
1283eee5 | 296 | |
79575d04 | 297 | dm[21]=253.6; |
298 | dm[22]=65.6; | |
299 | dm[23]=278.; | |
1283eee5 | 300 | |
37831078 | 301 | // |
1283eee5 | 302 | |
79575d04 | 303 | dm[24]=283.7; |
304 | dm[25]=65.6; | |
305 | dm[26]=278.; | |
306 | ||
307 | gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27); | |
1283eee5 | 308 | |
79575d04 | 309 | // outer part |
1283eee5 | 310 | |
37831078 | 311 | //------------------------------------------------------------------- |
79575d04 | 312 | // Tpc Outer INsulator (CO2) - contains cont. vessel and field cage |
37831078 | 313 | //------------------------------------------------------------------- |
1283eee5 | 314 | |
37831078 | 315 | dm[0]= 0.; |
316 | dm[1]= 360.; | |
317 | dm[2]= 6.; | |
1283eee5 | 318 | |
37831078 | 319 | // |
1283eee5 | 320 | |
79575d04 | 321 | dm[3]=-253.6; |
322 | dm[4]=258.; | |
323 | dm[5]=275.5; | |
1283eee5 | 324 | |
37831078 | 325 | // |
1283eee5 | 326 | |
79575d04 | 327 | dm[6]=-250.6; |
328 | dm[7]=258.; | |
329 | dm[8]=275.5; | |
1283eee5 | 330 | |
37831078 | 331 | // |
cc80f89e | 332 | |
79575d04 | 333 | dm[9]=-250.6; |
334 | dm[10]=258.; | |
335 | dm[11]=278.; | |
1283eee5 | 336 | |
79575d04 | 337 | // |
1283eee5 | 338 | |
79575d04 | 339 | dm[12]=253.6; |
340 | dm[13]=258.; | |
341 | dm[14]=278.; | |
1283eee5 | 342 | |
37831078 | 343 | // |
1283eee5 | 344 | |
79575d04 | 345 | dm[15]=253.6; |
346 | dm[16]=264.8; | |
347 | dm[17]=278.; | |
1283eee5 | 348 | |
37831078 | 349 | // |
1283eee5 | 350 | |
79575d04 | 351 | dm[18]=256.6; |
352 | dm[19]=264.8; | |
353 | dm[20]=278.; | |
1283eee5 | 354 | |
79575d04 | 355 | gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21); |
1283eee5 | 356 | |
37831078 | 357 | //---------------------------------------------------------------- |
358 | // Tpc Outer Contaiment Vessel | |
359 | // mother volume - Al, daughters - composite (sandwich) | |
360 | //---------------------------------------------------------------- | |
79575d04 | 361 | |
362 | dm[0]=0.; | |
363 | dm[1]=360.; | |
720b23b8 | 364 | dm[2]=6.; |
1283eee5 | 365 | |
37831078 | 366 | // |
cc80f89e | 367 | |
79575d04 | 368 | dm[3]=-250.6; |
369 | dm[4]=270.4; | |
370 | dm[5]=278.; | |
1283eee5 | 371 | |
37831078 | 372 | // |
1283eee5 | 373 | |
79575d04 | 374 | dm[6]=-247.6; |
375 | dm[7]=270.4; | |
376 | dm[8]=278.; | |
1283eee5 | 377 | |
37831078 | 378 | // |
79575d04 | 379 | |
380 | dm[9]=-247.6; | |
cea9b4f7 | 381 | dm[10]=274.8124; |
79575d04 | 382 | dm[11]=278.; |
383 | ||
37831078 | 384 | // |
1283eee5 | 385 | |
79575d04 | 386 | dm[12]=253.6; |
cea9b4f7 | 387 | dm[13]=274.8124; |
79575d04 | 388 | dm[14]=278.; |
1283eee5 | 389 | |
720b23b8 | 390 | // |
1283eee5 | 391 | |
79575d04 | 392 | dm[15]=253.6; |
393 | dm[16]=264.8; | |
394 | dm[17]=278.; | |
1283eee5 | 395 | |
79575d04 | 396 | // |
720b23b8 | 397 | |
79575d04 | 398 | dm[18]=256.6; |
399 | dm[19]=264.8; | |
400 | dm[20]=278.; | |
720b23b8 | 401 | |
402 | gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21); | |
1283eee5 | 403 | |
79575d04 | 404 | // Daughter volumes - sandwich |
1283eee5 | 405 | |
37831078 | 406 | // Tpc SAndwich 1 - Al |
79575d04 | 407 | |
cea9b4f7 | 408 | dm[0]=274.8124; |
79575d04 | 409 | dm[1]=278.; |
410 | dm[2]=252.1; | |
1283eee5 | 411 | |
37831078 | 412 | gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3); |
1283eee5 | 413 | |
79575d04 | 414 | // Tpc SAndwich 2 - epoxy glue (I use Lexan) |
1283eee5 | 415 | |
37831078 | 416 | dm[0] += 5.e-3; |
417 | dm[1] -= 5.e-3; | |
79575d04 | 418 | |
419 | gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3); | |
420 | ||
421 | // Tpc SAndwich 3 - Tedlar | |
422 | ||
423 | dm[0] += 0.01; | |
424 | dm[1] -= 0.01; | |
37831078 | 425 | |
79575d04 | 426 | gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3); |
1283eee5 | 427 | |
8c555625 | 428 | |
79575d04 | 429 | // Tpc SAndwich 4 - fiber glass (G10) |
8c555625 | 430 | |
cea9b4f7 | 431 | dm[0] += 3.8e-3; |
432 | dm[1] -= 3.8e-3; | |
8c555625 | 433 | |
79575d04 | 434 | gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3); |
1283eee5 | 435 | |
79575d04 | 436 | // Tpc SAndwich 5 - NOMEX honeycomb |
1283eee5 | 437 | |
79575d04 | 438 | dm[0] += 0.075; |
439 | dm[1] -= 0.075; | |
37831078 | 440 | |
79575d04 | 441 | gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3); |
442 | ||
443 | // 5->4->3->2->1->TCOV | |
8c555625 | 444 | |
79575d04 | 445 | |
446 | gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY"); | |
37831078 | 447 | gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY"); |
448 | gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY"); | |
79575d04 | 449 | gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 450 | |
79575d04 | 451 | gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY"); |
fe4da5cc | 452 | |
37831078 | 453 | // TCOV-> TOIN |
fe4da5cc | 454 | |
37831078 | 455 | gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 456 | |
37831078 | 457 | //------------------------------------------------------- |
458 | // Tpc Outer Field Cage | |
459 | // mother volume - Al, daughters - composite (sandwich) | |
460 | //------------------------------------------------------- | |
1283eee5 | 461 | |
37831078 | 462 | dm[0]=0.; |
463 | dm[1]=360.; | |
464 | dm[2]=6.; | |
1283eee5 | 465 | |
79575d04 | 466 | // |
467 | ||
468 | dm[3]=-253.6; | |
469 | dm[4]=258.; | |
470 | dm[5]=275.5; | |
1283eee5 | 471 | |
37831078 | 472 | // |
1283eee5 | 473 | |
79575d04 | 474 | dm[6]=-250.6; |
475 | dm[7]=258.; | |
476 | dm[8]=275.5; | |
1283eee5 | 477 | |
37831078 | 478 | // |
79575d04 | 479 | |
480 | dm[9]=-250.6; | |
481 | dm[10]=258.; | |
cea9b4f7 | 482 | dm[11]=260.0476; |
1283eee5 | 483 | |
37831078 | 484 | // |
1283eee5 | 485 | |
79575d04 | 486 | dm[12]=250.6; |
487 | dm[13]=258.; | |
cea9b4f7 | 488 | dm[14]=260.0476; |
1283eee5 | 489 | |
37831078 | 490 | // |
1283eee5 | 491 | |
79575d04 | 492 | dm[15]=250.6; |
493 | dm[16]=258.; | |
494 | dm[17]=275.5; | |
1283eee5 | 495 | |
37831078 | 496 | // |
1283eee5 | 497 | |
79575d04 | 498 | dm[18]=253.6; |
499 | dm[19]=258.; | |
500 | dm[20]=275.5; | |
1283eee5 | 501 | |
79575d04 | 502 | gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21); |
1283eee5 | 503 | |
37831078 | 504 | // Daughter volumes |
1283eee5 | 505 | |
79575d04 | 506 | // Tpc SAndwich 6 - Tedlar |
1283eee5 | 507 | |
37831078 | 508 | dm[0]= 258.; |
cea9b4f7 | 509 | dm[1]= 260.0476; |
79575d04 | 510 | dm[2]= 252.1; |
1283eee5 | 511 | |
79575d04 | 512 | gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3); |
1283eee5 | 513 | |
79575d04 | 514 | // Tpc SAndwich 7 - fiber glass |
1283eee5 | 515 | |
cea9b4f7 | 516 | dm[0] += 3.8e-3; |
517 | dm[1] -= 3.8e-3; | |
1283eee5 | 518 | |
79575d04 | 519 | gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3); |
1283eee5 | 520 | |
1283eee5 | 521 | |
37831078 | 522 | // Tpc SAndwich 8 - NOMEX |
1283eee5 | 523 | |
37831078 | 524 | dm[0] += 0.02; |
525 | dm[1] -= 0.02; | |
1283eee5 | 526 | |
79575d04 | 527 | gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3); |
1283eee5 | 528 | |
79575d04 | 529 | // 8->7->6->TOFC |
1283eee5 | 530 | |
79575d04 | 531 | gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY"); |
532 | gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY"); | |
533 | gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY"); | |
fe4da5cc | 534 | |
37831078 | 535 | // TOFC->TOIN |
fe4da5cc | 536 | |
79575d04 | 537 | gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 538 | |
37831078 | 539 | // TOIN->TPC |
1283eee5 | 540 | |
37831078 | 541 | gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY"); |
1283eee5 | 542 | |
79575d04 | 543 | // inner part |
1283eee5 | 544 | |
79575d04 | 545 | //-------------------------------------------------------------------- |
546 | // Tpc Inner INsulator (CO2) - inner f.c. will be placed there | |
547 | // Inner containment vessel will be placed directly in the TPC | |
548 | //-------------------------------------------------------------------- | |
1283eee5 | 549 | |
37831078 | 550 | dm[0]=0.; |
79575d04 | 551 | dm[1]=360.; |
552 | dm[2]=4.; | |
1283eee5 | 553 | |
79575d04 | 554 | // |
1283eee5 | 555 | |
79575d04 | 556 | dm[3]=-253.6; |
557 | dm[4]=65.9; | |
558 | dm[5]=79.2; | |
1283eee5 | 559 | |
37831078 | 560 | // |
1283eee5 | 561 | |
79575d04 | 562 | dm[6]=-73.3; |
563 | dm[7]=61.2; | |
564 | dm[8]=79.2; | |
1283eee5 | 565 | |
37831078 | 566 | // |
1283eee5 | 567 | |
79575d04 | 568 | dm[9]=73.3; |
569 | dm[10]=61.2; | |
570 | dm[11]=79.2; | |
1283eee5 | 571 | |
37831078 | 572 | // |
1283eee5 | 573 | |
79575d04 | 574 | dm[12]=253.6; |
575 | dm[13]=65.9; | |
576 | dm[14]=79.2; | |
1283eee5 | 577 | |
79575d04 | 578 | gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15); |
1283eee5 | 579 | |
79575d04 | 580 | // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2 |
1283eee5 | 581 | |
79575d04 | 582 | dm[0]=79.16; |
583 | dm[1]=79.2; | |
584 | dm[2]=88.; | |
1283eee5 | 585 | |
79575d04 | 586 | gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3); |
1283eee5 | 587 | |
79575d04 | 588 | gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 589 | |
79575d04 | 590 | //----------------------------------------------------- |
591 | // Tpc Inner Field Cage | |
592 | // mother volume - Al, daughters - composite (sandwich) | |
593 | //------------------------------------------------------ | |
1283eee5 | 594 | |
79575d04 | 595 | dm[0]=0.; |
596 | dm[1]=360.; | |
597 | dm[2]=10.; | |
1283eee5 | 598 | |
37831078 | 599 | // |
1283eee5 | 600 | |
79575d04 | 601 | dm[3]=-253.6; |
602 | dm[4]=70.3; | |
603 | dm[5]=79.2; | |
1283eee5 | 604 | |
37831078 | 605 | // |
1283eee5 | 606 | |
79575d04 | 607 | dm[6]=-250.6; |
608 | dm[7]=70.3; | |
609 | dm[8]=79.2; | |
1283eee5 | 610 | |
37831078 | 611 | // |
1283eee5 | 612 | |
79575d04 | 613 | dm[9]=-250.6; |
cea9b4f7 | 614 | dm[10]=77.0524; |
79575d04 | 615 | dm[11]=79.2; |
37831078 | 616 | |
617 | // | |
618 | ||
79575d04 | 619 | dm[12]=-88.; |
cea9b4f7 | 620 | dm[13]=77.0524; |
79575d04 | 621 | dm[14]=79.2; |
1283eee5 | 622 | |
37831078 | 623 | // |
1283eee5 | 624 | |
79575d04 | 625 | dm[15]=-88.; |
cea9b4f7 | 626 | dm[16]=77.0924; |
79575d04 | 627 | dm[17]=79.16; |
1283eee5 | 628 | |
629 | // | |
37831078 | 630 | |
79575d04 | 631 | dm[18]=88.; |
cea9b4f7 | 632 | dm[19]=77.0924; |
79575d04 | 633 | dm[20]=79.16; |
37831078 | 634 | |
1283eee5 | 635 | // |
636 | ||
79575d04 | 637 | dm[21]=88.; |
cea9b4f7 | 638 | dm[22]=77.0524; |
79575d04 | 639 | dm[23]=79.2; |
1283eee5 | 640 | |
37831078 | 641 | // |
1283eee5 | 642 | |
79575d04 | 643 | dm[24]=250.6; |
cea9b4f7 | 644 | dm[25]=77.0524; |
79575d04 | 645 | dm[26]=79.2; |
1283eee5 | 646 | |
37831078 | 647 | // |
1283eee5 | 648 | |
79575d04 | 649 | dm[27]=250.6; |
650 | dm[28]=70.3; | |
651 | dm[29]=79.2; | |
1283eee5 | 652 | |
37831078 | 653 | // |
1283eee5 | 654 | |
79575d04 | 655 | dm[30]=253.6; |
656 | dm[31]=70.3; | |
657 | dm[32]=79.2; | |
1283eee5 | 658 | |
79575d04 | 659 | gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33); |
1283eee5 | 660 | |
79575d04 | 661 | // daughter volumes - central part |
1283eee5 | 662 | |
79575d04 | 663 | // Tpc Sandwich 9 -Tedlar |
1283eee5 | 664 | |
cea9b4f7 | 665 | dm[0]=77.0924; |
79575d04 | 666 | dm[1]=79.16; |
667 | dm[2]=88.; | |
1283eee5 | 668 | |
79575d04 | 669 | gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3); |
1283eee5 | 670 | |
79575d04 | 671 | // Tpc Sandwich 10 - fiber glass (G10) |
1283eee5 | 672 | |
cea9b4f7 | 673 | dm[0] += 3.8e-3; |
674 | dm[1] -= 3.8e-3; | |
1283eee5 | 675 | |
79575d04 | 676 | gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3); |
1283eee5 | 677 | |
79575d04 | 678 | // Tpc Sandwich 11 - NOMEX |
1283eee5 | 679 | |
79575d04 | 680 | dm[0] += 0.03; |
681 | dm[1] -= 0.03; | |
1283eee5 | 682 | |
79575d04 | 683 | gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3); |
1283eee5 | 684 | |
79575d04 | 685 | // 11->10->9->TIFC |
1283eee5 | 686 | |
79575d04 | 687 | gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY"); |
688 | gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 689 | |
79575d04 | 690 | gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY"); |
1283eee5 | 691 | |
79575d04 | 692 | // daughter volumes - outer parts (reinforced) |
1283eee5 | 693 | |
79575d04 | 694 | // Tpc Sandwich 12 -Tedlar |
1283eee5 | 695 | |
cea9b4f7 | 696 | dm[0]=77.0524; |
79575d04 | 697 | dm[1]=79.2; |
698 | dm[2]=82.05; | |
1283eee5 | 699 | |
79575d04 | 700 | gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3); |
1283eee5 | 701 | |
79575d04 | 702 | // Tpc Sandwich 13 - fiber glass (G10) |
1283eee5 | 703 | |
cea9b4f7 | 704 | dm[0] += 3.8e-3; |
705 | dm[1] -= 3.8e-3; | |
1283eee5 | 706 | |
79575d04 | 707 | gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3); |
1283eee5 | 708 | |
79575d04 | 709 | // Tpc Sandwich 14 - NOMEX |
1283eee5 | 710 | |
79575d04 | 711 | dm[0] += 0.07; |
712 | dm[1] -= 0.07; | |
1283eee5 | 713 | |
79575d04 | 714 | gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3); |
1283eee5 | 715 | |
79575d04 | 716 | // 14->13->12->TIFC |
1283eee5 | 717 | |
79575d04 | 718 | gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY"); |
719 | gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 720 | |
79575d04 | 721 | gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY"); |
722 | gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY"); | |
1283eee5 | 723 | |
79575d04 | 724 | // place this inside the inner insulator |
1283eee5 | 725 | |
79575d04 | 726 | gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 727 | |
79575d04 | 728 | // and now in the TPC... |
1283eee5 | 729 | |
79575d04 | 730 | gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY"); |
37831078 | 731 | |
79575d04 | 732 | //--------------------------------------------------------- |
733 | // Tpc Inner Containment vessel - Cones | |
734 | //--------------------------------------------------------- | |
1283eee5 | 735 | |
79575d04 | 736 | dm[0]=0.; |
737 | dm[1]=360.; | |
37831078 | 738 | dm[2]=8.; |
1283eee5 | 739 | |
37831078 | 740 | // |
1283eee5 | 741 | |
79575d04 | 742 | dm[3]=71.8; |
743 | dm[4]=56.9; | |
744 | dm[5]=59.4; | |
1283eee5 | 745 | |
37831078 | 746 | // |
1283eee5 | 747 | |
79575d04 | 748 | dm[6]=73.; |
749 | dm[7]=56.9; | |
750 | dm[8]=59.4; | |
1283eee5 | 751 | |
37831078 | 752 | // |
1283eee5 | 753 | |
79575d04 | 754 | dm[9]=73.; |
755 | dm[10]=56.9; | |
756 | dm[11]=61.2; | |
1283eee5 | 757 | |
37831078 | 758 | // |
1283eee5 | 759 | |
79575d04 | 760 | dm[12]=73.3; |
761 | dm[13]=56.9; | |
762 | dm[14]=61.2; | |
1283eee5 | 763 | |
37831078 | 764 | // |
79575d04 | 765 | |
766 | dm[15]=73.3; | |
767 | dm[16]=60.9; | |
768 | dm[17]=61.2; | |
1283eee5 | 769 | |
79575d04 | 770 | // |
1283eee5 | 771 | |
79575d04 | 772 | dm[18]=253.6; |
773 | dm[19]=65.6; | |
774 | dm[20]=65.9; | |
1283eee5 | 775 | |
37831078 | 776 | // |
1283eee5 | 777 | |
79575d04 | 778 | dm[21]=253.6; |
779 | dm[22]=65.6; | |
f4900c61 | 780 | dm[23]=74.6; |
1283eee5 | 781 | |
37831078 | 782 | // |
1283eee5 | 783 | |
f4900c61 | 784 | dm[24]=256.6; |
79575d04 | 785 | dm[25]=65.6; |
f4900c61 | 786 | dm[26]=74.6; |
1283eee5 | 787 | |
79575d04 | 788 | gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27); |
1283eee5 | 789 | |
79575d04 | 790 | Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles |
1283eee5 | 791 | |
79575d04 | 792 | // reflection matrix |
793 | ||
794 | theta1 = 90.; | |
795 | phi1 = 0.; | |
796 | theta2 = 90.; | |
797 | phi2 = 270.; | |
798 | theta3 = 180.; | |
799 | phi3 = 0.; | |
1283eee5 | 800 | |
79575d04 | 801 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); |
1283eee5 | 802 | |
79575d04 | 803 | gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY"); |
804 | gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
1283eee5 | 805 | |
1283eee5 | 806 | |
79575d04 | 807 | //--------------------------------------------------------- |
808 | // Tpc Inner Containment vessel - Middle part -Al | |
809 | //--------------------------------------------------------- | |
1283eee5 | 810 | |
79575d04 | 811 | dm[0]=0.; |
812 | dm[1]=360.; | |
813 | dm[2]=6.; | |
1283eee5 | 814 | |
37831078 | 815 | // |
1283eee5 | 816 | |
79575d04 | 817 | dm[3]=-71.6; |
818 | dm[4]=60.2; | |
819 | dm[5]=61.2; | |
1283eee5 | 820 | |
37831078 | 821 | // |
1283eee5 | 822 | |
79575d04 | 823 | dm[6]=-69.1; |
824 | dm[7]=60.2; | |
825 | dm[8]=61.2; | |
1283eee5 | 826 | |
37831078 | 827 | // |
1283eee5 | 828 | |
79575d04 | 829 | dm[9]=-69.1; |
cea9b4f7 | 830 | dm[10]=60.6224; |
79575d04 | 831 | dm[11]=61.2; |
1283eee5 | 832 | |
fe4da5cc | 833 | // |
834 | ||
79575d04 | 835 | dm[12]=69.1; |
cea9b4f7 | 836 | dm[13]=60.6224; |
79575d04 | 837 | dm[14]=61.2; |
fe4da5cc | 838 | |
fe4da5cc | 839 | // |
840 | ||
79575d04 | 841 | dm[15]=69.1; |
842 | dm[16]=60.2; | |
843 | dm[17]=61.2; | |
37831078 | 844 | |
fe4da5cc | 845 | // |
37831078 | 846 | |
79575d04 | 847 | dm[18]=71.6; |
848 | dm[19]=60.2; | |
849 | dm[20]=61.2; | |
37831078 | 850 | |
79575d04 | 851 | gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21); |
fe4da5cc | 852 | |
79575d04 | 853 | // Tpc Sandwich 15 - Al |
37831078 | 854 | |
cea9b4f7 | 855 | dm[0]=60.6224; |
79575d04 | 856 | dm[1]=61.2; |
857 | dm[2]=70.1; | |
37831078 | 858 | |
79575d04 | 859 | gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3); |
fe4da5cc | 860 | |
79575d04 | 861 | // Tpc Sandwich 16 - epoxy glue |
fe4da5cc | 862 | |
79575d04 | 863 | dm[0] += 5.e-3; |
864 | dm[1] -= 5.e-3; | |
fe4da5cc | 865 | |
79575d04 | 866 | gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3); |
fe4da5cc | 867 | |
6a905708 | 868 | // Tpc Sandwich 17 - Tedlar |
37831078 | 869 | |
79575d04 | 870 | dm[0] += 0.01; |
871 | dm[1] -= 0.01; | |
37831078 | 872 | |
6a905708 | 873 | gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3); |
37831078 | 874 | |
cea9b4f7 | 875 | // Tpc Sandwich 18 - carbon fiber |
37831078 | 876 | |
cea9b4f7 | 877 | dm[0] += 3.8e-3; |
878 | dm[1] -= 3.8e-3; | |
37831078 | 879 | |
cea9b4f7 | 880 | gMC->Gsvolu("TS18","TUBE",idtmed[15],dm,3); |
37831078 | 881 | |
79575d04 | 882 | // Tpc Sandwich 19 - Nomex |
37831078 | 883 | |
cea9b4f7 | 884 | dm[0] += 0.02; |
885 | dm[1] -= 0.02; | |
37831078 | 886 | |
90222263 | 887 | gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3); |
37831078 | 888 | |
79575d04 | 889 | // 19->18->17->16->15-> TICM |
37831078 | 890 | |
79575d04 | 891 | gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY"); |
37831078 | 892 | gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY"); |
79575d04 | 893 | gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY"); |
894 | gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY"); | |
37831078 | 895 | |
79575d04 | 896 | gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY"); |
897 | ||
37831078 | 898 | |
79575d04 | 899 | // TPc inner cont. vessel Joints |
37831078 | 900 | |
79575d04 | 901 | dm[0]=60.2; |
902 | dm[1]=61.2; | |
903 | dm[2]=0.5; | |
37831078 | 904 | |
79575d04 | 905 | gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3); |
37831078 | 906 | |
79575d04 | 907 | gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY"); |
908 | gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY"); | |
37831078 | 909 | |
79575d04 | 910 | // |
37831078 | 911 | |
79575d04 | 912 | dm[0]=0.; |
913 | dm[1]=360.; | |
914 | dm[2]=4.; | |
37831078 | 915 | |
79575d04 | 916 | // |
37831078 | 917 | |
79575d04 | 918 | dm[3]=70.8; |
919 | dm[4]=58.4; | |
920 | dm[5]=60.1; | |
37831078 | 921 | |
79575d04 | 922 | // |
37831078 | 923 | |
79575d04 | 924 | dm[6]=71.2; |
925 | dm[7]=58.4; | |
926 | dm[8]=60.1; | |
37831078 | 927 | |
79575d04 | 928 | // |
37831078 | 929 | |
79575d04 | 930 | dm[9]=71.2; |
931 | dm[10]=58.4; | |
932 | dm[11]=59.4; | |
37831078 | 933 | |
79575d04 | 934 | // |
37831078 | 935 | |
79575d04 | 936 | dm[12]=71.6; |
937 | dm[13]=58.4; | |
938 | dm[14]=59.4; | |
37831078 | 939 | |
79575d04 | 940 | gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15); |
37831078 | 941 | |
79575d04 | 942 | gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY"); |
943 | gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
37831078 | 944 | |
37831078 | 945 | |
37831078 | 946 | |
79575d04 | 947 | // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being) |
37831078 | 948 | |
79575d04 | 949 | dm[0]=58.4; |
950 | dm[1]=61.2; | |
951 | dm[2]=0.1; | |
37831078 | 952 | |
79575d04 | 953 | gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3); |
37831078 | 954 | |
79575d04 | 955 | gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY"); |
956 | gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY"); | |
37831078 | 957 | |
79575d04 | 958 | // TICM -> TPC |
37831078 | 959 | |
79575d04 | 960 | gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY"); |
37831078 | 961 | |
79575d04 | 962 | // |
37831078 | 963 | |
79575d04 | 964 | nRotMat++; // prepare for the next rotation matrix |
37831078 | 965 | |
966 | //--------------------------------------------------------- | |
967 | // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10) | |
968 | // and its daughters (HV membrane, rods, readout chambers) | |
969 | //--------------------------------------------------------- | |
970 | ||
971 | dm[0]= 79.2; | |
972 | dm[1]= 258.0; | |
973 | dm[2]= 253.6; | |
974 | ||
79575d04 | 975 | gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3); |
37831078 | 976 | |
79575d04 | 977 | // sector opening angles |
37831078 | 978 | |
979 | Float_t innerOpenAngle = fTPCParam->GetInnerAngle(); | |
980 | Float_t outerOpenAngle = fTPCParam->GetOuterAngle(); | |
981 | ||
982 | // sector angle shift | |
983 | ||
984 | Float_t innerAngleShift = fTPCParam->GetInnerAngleShift(); | |
985 | ||
79575d04 | 986 | |
37831078 | 987 | // All above parameters are identical for inner and outer |
988 | // sectors. The distinction is kept for the historical reasons | |
989 | // and eventually will disappear. | |
990 | ||
991 | Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle); | |
992 | Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha); | |
993 | Float_t space; | |
994 | ||
995 | //------------------------------------------------------------------------- | |
996 | // Tpc Inner Readout Chambers | |
997 | //------------------------------------------------------------------------- | |
998 | ||
999 | dm[0]= 14.483; | |
1000 | dm[1]= 23.3345; | |
1001 | dm[2]= 1.6; // thickness | |
1002 | dm[3]= 25.1; | |
1003 | ||
1004 | gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4); | |
1005 | ||
1006 | // this volume will be positioned in the empty space | |
1007 | // of the end-cap to avoid overlaps | |
1008 | ||
1009 | dm[0]= 13.7305; | |
1010 | dm[1]= 21.1895; | |
1011 | dm[2]= 2.25; | |
1012 | dm[3]= 21.15; | |
1013 | ||
1014 | gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4); | |
1015 | ||
79575d04 | 1016 | |
37831078 | 1017 | //------------------------------------------------ |
1018 | // Tpc Inner readout chamber Pad Plane | |
1019 | //------------------------------------------------ | |
1020 | ||
1021 | dm[0]= 14.483; | |
1022 | dm[1]= 23.3345; | |
1023 | dm[2]= 0.5; | |
1024 | dm[3]= 25.1; | |
1025 | ||
1026 | gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4); | |
1027 | ||
1028 | // | |
1029 | ||
1030 | dm[0] -= 1.218511934; | |
1031 | dm[1] -= 1.218511934; | |
1032 | dm[2] = 0.35; | |
1033 | ||
1034 | gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4); | |
1035 | ||
1036 | gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY"); | |
1037 | ||
1038 | gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY"); | |
1039 | ||
79575d04 | 1040 | |
37831078 | 1041 | //---------------------------------------------- |
1042 | // Tpc Readout Chambers Empty spaces - for both | |
1043 | // inner and outer sectors | |
1044 | //---------------------------------------------- | |
1045 | ||
1046 | gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0); | |
1047 | ||
1048 | // Inner sector - 4 spaces | |
1049 | ||
1050 | ||
1051 | dm[3] = 4.7625; | |
1052 | dm[0] = 12.472; | |
1053 | ||
1054 | Float_t rr = 90.52; | |
1055 | Float_t zz; | |
1056 | ||
1057 | zz= -12.7875; | |
1058 | ||
1059 | space = rr*tanAlpha-dm[0]; | |
1060 | ||
1061 | for(Int_t nsLow=0;nsLow<4;nsLow++){ | |
1062 | ||
1063 | rr += 9.525; | |
1064 | dm[1]= rr*tanAlpha - space; | |
1065 | ||
1066 | dm[2]=0.8; | |
1067 | ||
1068 | gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4); | |
1069 | ||
1070 | // | |
1071 | ||
79575d04 | 1072 | dm[2] = 1.2; |
37831078 | 1073 | |
1074 | gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4); | |
1075 | ||
1076 | rr += 0.4; | |
1077 | dm[0] = rr*tanAlpha - space; | |
1078 | zz += (0.4+9.525); | |
1079 | ||
1080 | } | |
1081 | ||
1082 | dm[0]= 12.472; | |
1083 | // dm[1] - this is the dm[1] from the previous TRCE | |
1084 | dm[2]= 1.05; | |
1085 | dm[3]= 19.65; | |
1086 | ||
79575d04 | 1087 | gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4); |
37831078 | 1088 | |
1089 | // | |
1090 | // TPc Space for Connectors | |
1091 | // | |
1092 | ||
1093 | dm[0]= .3; | |
1094 | dm[1]= .3; | |
1095 | dm[2]= 4.5; | |
1096 | ||
1097 | gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3); | |
1098 | ||
1099 | // TPC Connectors | |
1100 | ||
1101 | dm[0]= .25; | |
1102 | dm[1]= .15; | |
1103 | dm[2]= 3.75; | |
1104 | ||
1105 | gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3); | |
1106 | ||
1107 | gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY"); | |
1108 | ||
1109 | zz = -12.7875; | |
1110 | ||
79575d04 | 1111 | |
37831078 | 1112 | Float_t alpha; |
1113 | Float_t astep; | |
1114 | ||
37831078 | 1115 | // inner part of the inner sector - 2 x 20 holes |
1116 | ||
1117 | astep = 20.00096874/19.; | |
1118 | ||
1119 | alpha = 10.00048437-astep; | |
1120 | ||
1121 | Float_t x1,x2; | |
1122 | ||
1123 | x1 = 13.31175725; | |
1124 | x1 -= 0.996357832; | |
1125 | ||
1126 | x2 = 15.06180253; | |
1127 | x2 -= 1.163028812; | |
1128 | ||
1129 | Int_t ncon; | |
1130 | ||
1131 | for(ncon=0;ncon<20;ncon++){ | |
1132 | ||
1133 | phi1 = 0.; | |
1134 | theta1 = 90.+alpha; | |
1135 | phi2=90.; | |
1136 | theta2 = 90.; | |
1137 | phi3 = (alpha>0) ? 0. : 180.; | |
1138 | theta3 = TMath::Abs(alpha); | |
1139 | ||
1140 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1141 | ||
1142 | ||
1143 | ||
1144 | gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY"); | |
1145 | gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY"); | |
1146 | ||
1147 | ||
1148 | x1 -= 1.296357833; | |
1149 | x2 -= 1.463028812; | |
1150 | ||
1151 | alpha -= astep; | |
1152 | nRotMat++; | |
1153 | ||
1154 | } | |
1155 | ||
1156 | // outer part of the inner sector - 2 x 25 holes | |
1157 | ||
1158 | astep = 20.00096874/24.; | |
1159 | alpha = 10.00048437-astep; | |
1160 | ||
1161 | x1 = 16.81184781; | |
1162 | x1 -= 1.016295986; | |
1163 | ||
1164 | x2 = 18.5618931; | |
1165 | x2 -= 1.150914854; | |
1166 | ||
1167 | for(ncon=0;ncon<25;ncon++){ | |
1168 | ||
1169 | phi1 = 0.; | |
1170 | theta1 = 90.+alpha; | |
1171 | phi2=90.; | |
1172 | theta2 = 90.; | |
1173 | phi3 = (alpha>0) ? 0. : 180.; | |
1174 | theta3 = TMath::Abs(alpha); | |
1175 | ||
1176 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1177 | ||
1178 | ||
1179 | ||
1180 | gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY"); | |
1181 | gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY"); | |
1182 | ||
1183 | ||
1184 | x1 -= 1.316295986; | |
1185 | x2 -= 1.450914854; | |
1186 | ||
1187 | alpha -= astep; | |
1188 | nRotMat++; | |
1189 | ||
1190 | } | |
1191 | ||
1192 | //-------------------------------------------------------------------------- | |
1193 | // TPC Outer Readout Chambers | |
1194 | // this is NOT a final design | |
1195 | //-------------------------------------------------------------------------- | |
1196 | ||
1197 | dm[0]= 23.3875; | |
1198 | dm[1]= 43.524; | |
1199 | dm[2]= 1.5; //thickness | |
1200 | dm[3]= 57.1; | |
1201 | ||
1202 | gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4); | |
1203 | ||
1204 | //------------------------------------------------ | |
1205 | // Tpc Outer readout chamber Pad Plane | |
1206 | //------------------------------------------------ | |
1207 | ||
1208 | dm[2]= 0.5; | |
1209 | ||
1210 | gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4); | |
1211 | ||
1212 | dm[0] -= 1.218511934; | |
1213 | dm[1] -= 1.218511934; | |
1214 | dm[2] = 0.35; | |
1215 | ||
1216 | gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4); | |
1217 | ||
1218 | gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY"); | |
1219 | ||
1220 | gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY"); | |
1221 | ||
1222 | // empty space | |
1223 | ||
37831078 | 1224 | dm[0]= 21.035; |
1225 | dm[1]= 38.7205; | |
1226 | dm[2]= 0.7; | |
1227 | dm[3]= 50.15; | |
1228 | ||
1229 | gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4); | |
1230 | ||
1231 | dm[0]= 22.2935; | |
1232 | dm[1]= 40.5085; | |
1233 | dm[2]= 2.25; | |
1234 | dm[3]= 51.65; | |
1235 | ||
1236 | gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4); | |
1237 | ||
1238 | dm[0]= 21.35; | |
1239 | dm[1]= 38.7205; | |
1240 | dm[2]= 2.25; | |
1241 | dm[3]= 50.15; | |
1242 | ||
79575d04 | 1243 | gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4); |
37831078 | 1244 | |
1245 | //----------------------------------------------- | |
1246 | // Tpc Services Support Wheel | |
1247 | //----------------------------------------------- | |
1248 | ||
1249 | dm[0]=0.; | |
1250 | dm[1]=360.; | |
1251 | dm[2]=18.; | |
1252 | dm[3]=2.; | |
1253 | ||
1254 | dm[4]= -5.; | |
1255 | dm[5]= 77.017; | |
1256 | dm[6]= 255.267; | |
1257 | ||
1258 | dm[7]= 5.; | |
1259 | dm[8]= dm[5]; | |
1260 | dm[9]= dm[6]; | |
1261 | ||
1262 | gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10); | |
1263 | ||
1264 | // Tpc Services Wheel Cover | |
1265 | ||
1266 | dm[4]= -0.5; | |
1267 | dm[7]= 0.5; | |
1268 | ||
1269 | gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10); | |
1270 | ||
1271 | // Tpc Service wheel Cover Empty space | |
1272 | ||
1273 | dm[0]= 10.99; | |
1274 | dm[1]= 39.599; | |
1275 | dm[2]= .5; | |
1276 | dm[3]= 81.125; | |
1277 | ||
1278 | gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4); | |
1279 | ||
1280 | // Tpc services Wheel Empty Spaces | |
1281 | ||
1282 | dm[0]= 13.18017507; | |
1283 | dm[1]= 44.61045938; | |
1284 | dm[2]= 4.; | |
1285 | dm[3]= 89.125; | |
1286 | ||
1287 | gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4); | |
1288 | ||
1289 | // Tpc Services Wheel Bars | |
1290 | ||
1291 | gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0); | |
1292 | ||
1293 | // bars-> TWES | |
1294 | ||
1295 | dm[2]= 4.; | |
1296 | dm[3]= .4; | |
1297 | ||
1298 | dm[0]= 13.8149522; | |
1299 | dm[1]= 13.95601379; | |
1300 | ||
1301 | gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4); | |
1302 | ||
1303 | dm[0]= 43.83462067; | |
1304 | dm[1]= 43.97568225; | |
1305 | ||
1306 | gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4); | |
1307 | ||
1308 | // TPc ELectronics - right now 30% X0 Si | |
1309 | ||
1310 | dm[0]= 14.03813696; | |
1311 | dm[1]= 43.3524075; | |
1312 | dm[2]= 1.404; | |
1313 | dm[3]= 83.125; | |
1314 | ||
1315 | gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4); | |
1316 | gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY"); | |
1317 | ||
1318 | //-------------------------------------------------------------------------- | |
1319 | // End caps | |
1320 | //-------------------------------------------------------------------------- | |
1321 | ||
1322 | // TPc Main Wheel - Al | |
1323 | ||
79575d04 | 1324 | dm[0]= 74.9; |
1325 | dm[1]= 264.4; | |
37831078 | 1326 | dm[2]= 3.0; |
1327 | ||
1328 | gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3); | |
1329 | ||
37831078 | 1330 | //-------------------------------------------------------------------------- |
1331 | // Tpc Empty Space for the Readout chambers | |
1332 | //-------------------------------------------------------------------------- | |
1333 | ||
1334 | Float_t rLow= 86.2; | |
1335 | Float_t rUp= 243.5; | |
1336 | Float_t dR = 0.5*(rUp-rLow); | |
1337 | ||
79575d04 | 1338 | space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide |
37831078 | 1339 | |
1340 | dm[0]= rLow*tanAlpha-space; | |
1341 | dm[1]= rUp*tanAlpha-space; | |
79575d04 | 1342 | dm[2] = 3.0; |
37831078 | 1343 | dm[3]= dR; |
1344 | ||
1345 | gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4); | |
1346 | ||
1347 | // TIC1->TESR | |
1348 | ||
37831078 | 1349 | gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY"); |
1350 | ||
37831078 | 1351 | // TOC1->TESR |
1352 | ||
1353 | gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY"); | |
1354 | ||
1355 | // Tpc Empty Space Bars - Al (daughters of TESR) | |
1356 | ||
1357 | Float_t zBar; | |
1358 | ||
1359 | gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0); | |
1360 | ||
1361 | // lower bar | |
1362 | ||
1363 | dm[0]= rLow*tanAlpha-space; | |
1364 | dm[1]= 88.7*tanAlpha-space; | |
79575d04 | 1365 | dm[2]= 2.25; |
37831078 | 1366 | dm[3]= 1.275; |
1367 | ||
1368 | zBar = -dR+dm[3]; | |
1369 | ||
79575d04 | 1370 | gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4); |
37831078 | 1371 | |
1372 | // middle bar | |
1373 | ||
1374 | dm[0]= 131.65*tanAlpha-space; | |
1375 | dm[1]= 136.5*tanAlpha-space; | |
1376 | dm[3]= 2.425; | |
1377 | ||
1378 | zBar = -dR +131.65+dm[3]-rLow; | |
1379 | ||
79575d04 | 1380 | gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4); |
37831078 | 1381 | |
1382 | // upper bar | |
1383 | ||
1384 | dm[0]= 240.4*tanAlpha-space; | |
1385 | dm[1]= rUp*tanAlpha-space; | |
1386 | dm[3]= 1.55; | |
1387 | ||
1388 | zBar = dR-dm[3]; | |
1389 | ||
79575d04 | 1390 | gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4); |
37831078 | 1391 | |
1392 | //------------------------------------------------------ | |
1393 | // TPc Lower "S" Sectors | |
1394 | //------------------------------------------------------ | |
1395 | ||
1396 | ||
1397 | Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow(); | |
1398 | Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp(); | |
1399 | ||
1400 | dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1401 | dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
79575d04 | 1402 | dm[2] = 0.5*(250. - 5.e-3); |
37831078 | 1403 | dm[3] = 0.5*(inSecUpEdge-inSecLowEdge); |
1404 | ||
1405 | gMC->Gsvolu("TPLS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1406 | ||
79575d04 | 1407 | |
37831078 | 1408 | //---------------------------------------------------------- |
1409 | // TPc Upper Sectors | |
1410 | //---------------------------------------------------------- | |
1411 | ||
1412 | Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow(); | |
1413 | Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp(); | |
1414 | ||
1415 | dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
1416 | dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
79575d04 | 1417 | dm[2] = 0.5*(250. - 5.e-3); |
37831078 | 1418 | dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge); |
1419 | ||
1420 | gMC->Gsvolu("TPUS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1421 | ||
1422 | ||
37831078 | 1423 | |
79575d04 | 1424 | // sensitive strips |
37831078 | 1425 | |
1426 | gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive | |
1427 | ||
1428 | Int_t nofStrips,nstr; | |
1429 | Float_t r1,r2,zs; | |
1430 | Float_t stripThick = 0.01; // 100 microns | |
1431 | Float_t deadSpace; | |
1432 | ||
1433 | // inner sector | |
1434 | ||
d4c354b9 | 1435 | |
1436 | // if all lower sectors selected define only 1 strip | |
1437 | ||
1438 | nofStrips=((fSecAL <0)||(fSecAL>=0 && fSens<0)) ? 1 : fTPCParam->GetNRowLow(); | |
37831078 | 1439 | deadSpace = fTPCParam->GetInnerWireMount(); |
1440 | ||
79575d04 | 1441 | dm[2] = 0.5*(250. - 5.e-3); |
1442 | dm[3] = 0.5 * stripThick; | |
d4c354b9 | 1443 | |
37831078 | 1444 | for(nstr=0;nstr<nofStrips;nstr++){ |
1445 | ||
1446 | r1 = fTPCParam->GetPadRowRadiiLow(nstr); | |
1447 | r2 = r1 + stripThick; | |
1448 | dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1449 | dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1450 | zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge); | |
1451 | zs += r1; | |
1452 | zs += dm[3]; | |
1453 | ||
1454 | gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1455 | ||
37831078 | 1456 | |
1457 | } | |
1458 | ||
d4c354b9 | 1459 | // strips only if several upper sectors selected end fSens > 0 |
1460 | ||
1461 | if(fSecAU >=0 && fSens >0){ | |
1462 | ||
37831078 | 1463 | Int_t nsSave = nofStrips; |
1464 | ||
1465 | // outer sector | |
1466 | ||
1467 | nofStrips = fTPCParam->GetNRowUp(); | |
1468 | deadSpace = fTPCParam->GetOuterWireMount(); | |
1469 | ||
79575d04 | 1470 | dm[2] = 0.5*(250. - 5.e-3); |
37831078 | 1471 | dm[3] = 0.5 * stripThick; |
d4c354b9 | 1472 | |
37831078 | 1473 | |
1474 | for(nstr=0;nstr<nofStrips;nstr++){ | |
1475 | ||
1476 | r1 = fTPCParam->GetPadRowRadiiUp(nstr); | |
1477 | r2 = r1 + stripThick; | |
1478 | dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1479 | dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1480 | zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge); | |
1481 | zs += r1; | |
1482 | zs += dm[3]; | |
1483 | ||
1484 | gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1485 | ||
1486 | } | |
79575d04 | 1487 | } |
1488 | ||
37831078 | 1489 | |
1490 | //------------------------------------------------------- | |
1491 | // positioning of the empty spaces into the main wheel | |
1492 | // and readout chambers and sectors into the drift gas | |
1493 | //------------------------------------------------------- | |
1494 | ||
1495 | Float_t rCenter,xc,yc; | |
1496 | Float_t rInner,rOuter; // center of the inner and outer chamber | |
1497 | ||
1498 | rCenter = rLow+dR; | |
1499 | ||
1500 | rInner = 108.07; | |
1501 | rOuter = 190.68; | |
1502 | ||
79575d04 | 1503 | |
37831078 | 1504 | for(Int_t ns=0; ns<nInnerSector;ns++){ |
1505 | ||
1506 | phi1 = ns * innerOpenAngle + innerAngleShift; | |
1507 | phi1 *= kRaddeg; // in degrees | |
1508 | ||
1509 | phi1 = (Float_t)TMath::Nint(phi1) + 270.; | |
1510 | ||
1511 | if (phi1 > 360.) phi1 -= 360.; | |
1512 | ||
1513 | theta1 = 90.; | |
1514 | phi2 = 90.; | |
1515 | theta2 = 180.; | |
1516 | phi3 = ns * innerOpenAngle + innerAngleShift; | |
1517 | phi3 *= kRaddeg; // in degrees | |
1518 | ||
1519 | phi3 = (Float_t)TMath::Nint(phi3); | |
1520 | ||
1521 | if(phi3 > 360.) phi3 -= 360.; | |
1522 | ||
1523 | theta3 = 90.; | |
1524 | ||
1525 | // "holes"->End plate | |
1526 | ||
1527 | xc = rCenter*TMath::Cos(phi3*kDegrad); | |
1528 | yc = rCenter*TMath::Sin(phi3*kDegrad); | |
1529 | ||
1530 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1531 | ||
1532 | gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1533 | ||
1534 | // TSCE->TSWC (services wheel volumes) | |
1535 | ||
1536 | xc = 166.142*TMath::Cos(phi3*kDegrad); | |
1537 | yc = 166.142*TMath::Sin(phi3*kDegrad); | |
1538 | ||
1539 | gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1540 | gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1541 | ||
79575d04 | 1542 | |
37831078 | 1543 | // readout chambers->TDGN (drift gas) |
1544 | ||
1545 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1546 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1547 | ||
1548 | gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY"); | |
1549 | ||
1550 | // here lower sectors | |
1551 | ||
1552 | if(fSecAL <0){ | |
1553 | ||
1554 | // all lower sectors are positioned | |
1555 | ||
79575d04 | 1556 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1557 | gMC-> |
79575d04 | 1558 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1559 | } |
1560 | else{ | |
1561 | ||
1562 | // only selected sectors are positioned (up to 6 sectors) | |
1563 | ||
1564 | for(Int_t sel=0;sel<6;sel++){ | |
1565 | ||
1566 | if(fSecLows[sel] == ns){ | |
79575d04 | 1567 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1568 | } |
1569 | else if(fSecLows[sel] == ns+nInnerSector){ | |
1570 | gMC-> | |
79575d04 | 1571 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1572 | } |
1573 | } | |
1574 | } // lower sectors finished | |
79575d04 | 1575 | |
1576 | ||
37831078 | 1577 | xc = rOuter*TMath::Cos(phi3*kDegrad); |
1578 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1579 | ||
1580 | gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY"); | |
1581 | ||
1582 | // here upper sectors | |
1583 | ||
1584 | if(fSecAU <0){ | |
1585 | ||
1586 | // all upper sectors | |
1587 | ||
79575d04 | 1588 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1589 | gMC-> |
79575d04 | 1590 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1591 | } |
1592 | else{ | |
1593 | ||
1594 | // only selected sectors (up to 12) | |
1595 | ||
1596 | for(Int_t sel=0;sel<12;sel++){ | |
1597 | if(fSecUps[sel] == ns+2*nInnerSector){ | |
79575d04 | 1598 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1599 | } |
1600 | else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){ | |
1601 | gMC-> | |
79575d04 | 1602 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1603 | } |
1604 | } | |
1605 | } // upper sectors finished | |
1606 | ||
79575d04 | 1607 | |
37831078 | 1608 | nRotMat++; |
1609 | ||
79575d04 | 1610 | theta2 = 0.; // reflection |
37831078 | 1611 | |
1612 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1613 | ||
1614 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1615 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1616 | ||
1617 | gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY"); | |
1618 | ||
1619 | xc = rOuter*TMath::Cos(phi3*kDegrad); | |
1620 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1621 | ||
1622 | gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY"); | |
1623 | ||
1624 | nRotMat++; | |
1625 | ||
37831078 | 1626 | } |
37831078 | 1627 | // TPMW->TPC |
1628 | ||
1629 | gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY"); | |
79575d04 | 1630 | gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY"); |
37831078 | 1631 | |
79575d04 | 1632 | //--------------------------------------------------------- |
1633 | // Tpc High Voltage Membrane - 100 microns of mylar | |
1634 | //--------------------------------------------------------- | |
37831078 | 1635 | |
79575d04 | 1636 | dm[0]=82.8; |
1637 | dm[1]=252.; | |
1638 | dm[2]=0.005; | |
37831078 | 1639 | |
79575d04 | 1640 | gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3); |
37831078 | 1641 | |
79575d04 | 1642 | gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY"); |
37831078 | 1643 | |
79575d04 | 1644 | // Tpc High Voltage membrane Holders |
37831078 | 1645 | |
79575d04 | 1646 | gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0); |
37831078 | 1647 | |
79575d04 | 1648 | |
37831078 | 1649 | |
79575d04 | 1650 | // inner |
37831078 | 1651 | |
79575d04 | 1652 | dm[0]=79.3; |
1653 | dm[1]=82.8; | |
1654 | dm[2]=0.2; | |
37831078 | 1655 | |
79575d04 | 1656 | gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3); |
1657 | ||
1658 | // outer | |
1659 | ||
1660 | dm[0]= 252.; | |
1661 | dm[1]= 257.9; | |
1662 | dm[2]= 0.4; | |
1663 | ||
1664 | gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3); | |
37831078 | 1665 | |
1666 | //---------------------------------------------------------- | |
1667 | // TPc Support Rods - MAKROLON | |
1668 | //---------------------------------------------------------- | |
1669 | ||
1670 | dm[0]= 0.9; | |
1671 | dm[1]= 1.2; | |
37831078 | 1672 | |
79575d04 | 1673 | gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ |
37831078 | 1674 | |
79575d04 | 1675 | |
1676 | for(Int_t nrod=0;nrod<18;nrod++){ | |
37831078 | 1677 | Float_t angle=innerOpenAngle*(Float_t)nrod; |
1678 | ||
79575d04 | 1679 | xc=81.5*TMath::Cos(angle); |
1680 | yc=81.5*TMath::Sin(angle); | |
1681 | ||
1682 | dm[2]=126.7; | |
37831078 | 1683 | |
79575d04 | 1684 | gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3); |
1685 | gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3); | |
37831078 | 1686 | |
79575d04 | 1687 | dm[2]=126.6; |
37831078 | 1688 | |
79575d04 | 1689 | xc=254.25*TMath::Cos(angle); |
1690 | yc=254.25*TMath::Sin(angle); | |
1691 | ||
1692 | // rod number 54 contans the HV cable | |
37831078 | 1693 | |
79575d04 | 1694 | if(nrod<17) { |
1695 | gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3); | |
1696 | gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3); | |
1697 | } | |
1698 | ||
37831078 | 1699 | } |
1700 | ||
1701 | //---------------------------------------------------------- | |
79575d04 | 1702 | // Tpc High Voltage Rod - MAKROLON + Copper cable |
37831078 | 1703 | //---------------------------------------------------------- |
1704 | ||
1705 | // rod with cable (Left) | |
1706 | ||
1707 | dm[0]=0.; | |
1708 | dm[1]=2.25; | |
79575d04 | 1709 | dm[2]=126.6; |
37831078 | 1710 | |
1711 | gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3); | |
1712 | ||
1713 | // HV cable | |
1714 | ||
1715 | dm[0]=0.; | |
1716 | dm[1]=0.3; | |
79575d04 | 1717 | dm[2]=126.6; |
37831078 | 1718 | |
79575d04 | 1719 | gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3); |
37831078 | 1720 | |
1721 | // empty space | |
1722 | ||
1723 | dm[0]=0.3; | |
1724 | dm[1]=1.; | |
79575d04 | 1725 | dm[2]=126.6; |
37831078 | 1726 | |
1727 | gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3); | |
1728 | ||
1729 | gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1730 | gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1731 | ||
1732 | // rod without cable | |
1733 | ||
1734 | dm[0]=1.8; | |
1735 | dm[1]=2.25; | |
79575d04 | 1736 | dm[2]=126.6; |
37831078 | 1737 | |
1738 | gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3); | |
1739 | ||
79575d04 | 1740 | gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY"); |
1741 | gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY"); | |
37831078 | 1742 | |
1743 | gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
79575d04 | 1744 | |
37831078 | 1745 | // services wheel cover -> wheel |
1746 | ||
1747 | ||
1748 | gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY"); | |
1749 | gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY"); | |
1750 | ||
1751 | ||
1752 | // put the wheel into the TPC | |
1753 | ||
1754 | gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY"); | |
1755 | gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY"); | |
1756 | ||
79575d04 | 1757 | // |
1758 | ||
37831078 | 1759 | gMC->Gsord("TPMW",6); |
79575d04 | 1760 | gMC->Gsord("TSSW",6); |
1761 | gMC->Gsord("TSWC",6); | |
d4c354b9 | 1762 | if(fSecAL >=0) gMC->Gsord("TPLS",3); |
1763 | if(fSecAU >=0 && fSens >0) gMC->Gsord("TPUS",3); | |
37831078 | 1764 | gMC->Gsord("TDGN",6); |
37831078 | 1765 | |
1766 | // put the TPC into ALIC (main mother volume) | |
1767 | ||
79575d04 | 1768 | gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY"); |
1769 | ||
1770 | ||
37831078 | 1771 | |
1772 | } // end of function | |
1773 | ||
1774 | //_____________________________________________________________________________ | |
1775 | void AliTPCv2::DrawDetector() | |
1776 | { | |
1777 | // | |
1778 | // Draw a shaded view of the Time Projection Chamber version 1 | |
1779 | // | |
1780 | ||
1781 | // Set everything unseen | |
1782 | gMC->Gsatt("*", "seen", -1); | |
1783 | // | |
1784 | // Set ALIC mother transparent | |
1785 | gMC->Gsatt("ALIC","SEEN",0); | |
1786 | // | |
1787 | // Set the volumes visible | |
1788 | // | |
1789 | ||
1790 | gMC->Gsatt("TPC ","SEEN",0); | |
1791 | gMC->Gsatt("TOIN","SEEN",1); | |
1792 | gMC->Gsatt("TOIN","COLO",7); | |
37831078 | 1793 | gMC->Gsatt("TOCV","SEEN",1); |
1794 | gMC->Gsatt("TOCV","COLO",4); | |
1795 | gMC->Gsatt("TSA1","SEEN",0); | |
1796 | gMC->Gsatt("TSA2","SEEN",0); | |
1797 | gMC->Gsatt("TSA3","SEEN",0); | |
79575d04 | 1798 | gMC->Gsatt("TSA4","SEEN",0); |
1799 | gMC->Gsatt("TSA5","SEEN",0); | |
37831078 | 1800 | gMC->Gsatt("TOFC","SEEN",1); |
1801 | gMC->Gsatt("TOFC","COLO",4); | |
37831078 | 1802 | gMC->Gsatt("TSA6","SEEN",0); |
1803 | gMC->Gsatt("TSA7","SEEN",0); | |
79575d04 | 1804 | gMC->Gsatt("TSA8","SEEN",0); |
37831078 | 1805 | gMC->Gsatt("TIIN","SEEN",1); |
79575d04 | 1806 | gMC->Gsatt("TIIN","COLO",7); |
1807 | gMC->Gsatt("TII1","SEEN",0); | |
1808 | gMC->Gsatt("TIFC","SEEN",1); | |
1809 | gMC->Gsatt("TIFC","COLO",4); | |
1810 | gMC->Gsatt("TSA9","SEEN",0); | |
37831078 | 1811 | gMC->Gsatt("TS10","SEEN",0); |
1812 | gMC->Gsatt("TS11","SEEN",0); | |
1813 | gMC->Gsatt("TS12","SEEN",0); | |
37831078 | 1814 | gMC->Gsatt("TS13","SEEN",0); |
1815 | gMC->Gsatt("TS14","SEEN",0); | |
79575d04 | 1816 | gMC->Gsatt("TICC","SEEN",0); |
1817 | gMC->Gsatt("TICM","SEEN",0); | |
37831078 | 1818 | gMC->Gsatt("TS15","SEEN",0); |
1819 | gMC->Gsatt("TS16","SEEN",0); | |
37831078 | 1820 | gMC->Gsatt("TS17","SEEN",0); |
79575d04 | 1821 | gMC->Gsatt("TS18","SEEN",0); |
1822 | gMC->Gsatt("TS19","SEEN",0); | |
1823 | gMC->Gsatt("TPJ1","SEEN",0); | |
1824 | gMC->Gsatt("TPJ2","SEEN",0); | |
1825 | gMC->Gsatt("TICS","SEEN",0); | |
1826 | gMC->Gsatt("TDGN","SEEN",0); | |
37831078 | 1827 | gMC->Gsatt("TIRC","SEEN",0); |
1828 | gMC->Gsatt("TIC1","SEEN",1); | |
1829 | gMC->Gsatt("TIPP","SEEN",0); | |
1830 | gMC->Gsatt("TIC3","SEEN",0); | |
1831 | gMC->Gsatt("TRCE","SEEN",0); | |
1832 | gMC->Gsatt("TPSC","SEEN",0); | |
79575d04 | 1833 | gMC->Gsatt("TPCC","SEEN",0); |
37831078 | 1834 | gMC->Gsatt("TORC","SEEN",0); |
1835 | gMC->Gsatt("TOPP","SEEN",0); | |
1836 | gMC->Gsatt("TOC3","SEEN",0); | |
1837 | gMC->Gsatt("TOC1","SEEN",1); | |
1838 | gMC->Gsatt("TSSW","SEEN",1); | |
1839 | gMC->Gsatt("TSWC","SEEN",1); | |
37831078 | 1840 | gMC->Gsatt("TSSW","COLO",3); |
1841 | gMC->Gsatt("TSWC","COLO",3); | |
1842 | gMC->Gsatt("TSCE","COLO",6); | |
79575d04 | 1843 | gMC->Gsatt("TSCE","SEEN",1); |
37831078 | 1844 | gMC->Gsatt("TWES","SEEN",0); |
1845 | gMC->Gsatt("TSWB","SEEN",0); | |
1846 | gMC->Gsatt("TPEL","SEEN",0); | |
1847 | gMC->Gsatt("TPMW","SEEN",1); | |
37831078 | 1848 | gMC->Gsatt("TESR","SEEN",1); |
1849 | gMC->Gsatt("TPMW","COLO",12); | |
37831078 | 1850 | gMC->Gsatt("TIC1","COLO",5); |
79575d04 | 1851 | gMC->Gsatt("TOC1","COLO",5); |
37831078 | 1852 | gMC->Gsatt("TESB","SEEN",0); |
37831078 | 1853 | gMC->Gsatt("THVM","SEEN",1); |
1854 | gMC->Gsatt("THVM","COLO",11); | |
79575d04 | 1855 | gMC->Gsatt("THVH","SEEN",0); |
1856 | gMC->Gsatt("TPSR","SEEN",0); | |
37831078 | 1857 | gMC->Gsatt("THVL","SEEN",0); |
79575d04 | 1858 | gMC->Gsatt("THVC","SEEN",0); |
37831078 | 1859 | gMC->Gsatt("THVE","SEEN",0); |
1860 | gMC->Gsatt("THVR","SEEN",0); | |
79575d04 | 1861 | gMC->Gsatt("TPSS","SEEN",0); |
1862 | gMC->Gsatt("TPUS","SEEN",0); | |
1863 | gMC->Gsatt("TPLS","SEEN",0); | |
37831078 | 1864 | |
1865 | // | |
1866 | gMC->Gdopt("hide", "on"); | |
1867 | gMC->Gdopt("shad", "on"); | |
1868 | gMC->Gsatt("*", "fill", 7); | |
1869 | gMC->SetClipBox("."); | |
1870 | gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.); | |
1871 | gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.); | |
1872 | gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.); | |
1873 | gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.); | |
1874 | gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290); | |
1875 | gMC->DefaultRange(); | |
1876 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
1877 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
1878 | gMC->Gdman(18, 4, "MAN"); | |
1879 | gMC->Gdopt("hide","off"); | |
1880 | } | |
1881 | ||
1882 | //_____________________________________________________________________________ | |
1883 | void AliTPCv2::CreateMaterials() | |
1884 | { | |
1885 | // | |
1886 | // Define materials for version 2 of the Time Projection Chamber | |
1887 | // | |
1888 | ||
1889 | AliTPC::CreateMaterials(); | |
1890 | } | |
1891 | ||
1892 | //_____________________________________________________________________________ | |
1893 | void AliTPCv2::Init() | |
1894 | { | |
1895 | // | |
1896 | // Initialises version 2 of the TPC after that it has been built | |
1897 | // | |
1898 | ||
1899 | Int_t *idtmed = fIdtmed->GetArray(); | |
1900 | ||
1901 | AliTPC::Init(); | |
d4c354b9 | 1902 | |
1903 | ||
1904 | ||
1905 | fIdSens=gMC->VolId("TPSS"); | |
1906 | ||
1907 | fIdLSec=gMC->VolId("TPLS"); // lower sector | |
37831078 | 1908 | fIdUSec=gMC->VolId("TPUS"); // upper sector |
1909 | ||
1910 | gMC->SetMaxNStep(30000); // max. number of steps increased | |
1911 | ||
1912 | gMC->Gstpar(idtmed[2],"LOSS",5); // specific energy loss | |
1913 | ||
9e1a0ddb | 1914 | printf("%s: *** TPC version 2 initialized ***\n",ClassName()); |
1915 | printf("%s: Maximum number of steps = %d\n",ClassName(),gMC->GetMaxNStep()); | |
37831078 | 1916 | |
1917 | // | |
fe4da5cc | 1918 | |
1919 | } | |
1920 | ||
1921 | //_____________________________________________________________________________ | |
1922 | void AliTPCv2::StepManager() | |
1923 | { | |
1924 | // | |
1925 | // Called for every step in the Time Projection Chamber | |
1926 | // | |
1927 | ||
1928 | // | |
1929 | // parameters used for the energy loss calculations | |
1930 | // | |
73042f01 | 1931 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
1932 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
1933 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
fe4da5cc | 1934 | |
1935 | ||
73042f01 | 1936 | const Float_t kbig = 1.e10; |
fe4da5cc | 1937 | |
1938 | Int_t id,copy; | |
1939 | Float_t hits[4]; | |
1940 | Int_t vol[2]; | |
37831078 | 1941 | TLorentzVector p; |
fe4da5cc | 1942 | |
37831078 | 1943 | vol[1]=0; // preset row number to 0 |
fe4da5cc | 1944 | |
1945 | // | |
1946 | ||
73042f01 | 1947 | gMC->SetMaxStep(kbig); |
fe4da5cc | 1948 | |
0a6d8768 | 1949 | if(!gMC->IsTrackAlive()) return; // particle has disappeared |
fe4da5cc | 1950 | |
cfce8870 | 1951 | Float_t charge = gMC->TrackCharge(); |
fe4da5cc | 1952 | |
1953 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
1954 | ||
37831078 | 1955 | // check the sensitive volume |
1956 | ||
1957 | id = gMC->CurrentVolID(copy); // current volume Id | |
1958 | ||
1959 | if(id == fIdLSec){ | |
1960 | vol[0] = copy-1; // lower sector number | |
1961 | } | |
1962 | else if(id == fIdUSec){ | |
1963 | vol[0] = copy+fTPCParam->GetNInnerSector()-1; // upper sector number | |
1964 | } | |
1965 | else if(id == fIdSens && gMC->IsTrackEntering()){ | |
1966 | ||
1967 | // track is entering the sensitive strip | |
1968 | ||
1969 | vol[1]= copy-1; // row number (absolute) | |
1970 | ||
1971 | // sector type | |
1972 | ||
1973 | id = gMC->CurrentVolOffID(1,copy); | |
1974 | ||
1975 | if(id == fIdLSec){ | |
1976 | ||
1977 | // lower sector | |
1978 | ||
1979 | vol[0] = copy-1; // sector number | |
1980 | ||
fe4da5cc | 1981 | } |
37831078 | 1982 | else { |
1983 | ||
1984 | // upper sector | |
1985 | ||
1986 | vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number | |
6a905708 | 1987 | vol[1] -= fTPCParam->GetNRowLow(); // row number (starts also from 0) |
37831078 | 1988 | |
1989 | } | |
1990 | ||
1991 | if(vol[1] == 0){ | |
1992 | ||
1993 | // because Jouri wants to have this | |
1994 | ||
1995 | gMC->TrackMomentum(p); | |
1996 | hits[0]=p[0]; | |
1997 | hits[1]=p[1]; | |
1998 | hits[2]=p[2]; | |
fe4da5cc | 1999 | hits[3]=0.; // this hit has no energy loss |
6a905708 | 2000 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2001 | ||
2002 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
37831078 | 2003 | |
930ee558 | 2004 | } |
37831078 | 2005 | |
930ee558 | 2006 | gMC->TrackPosition(p); |
2007 | hits[0]=p[0]; | |
2008 | hits[1]=p[1]; | |
2009 | hits[2]=p[2]; | |
2010 | hits[3]=0.; // this hit has no energy loss | |
6a905708 | 2011 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2012 | ||
2013 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
930ee558 | 2014 | |
37831078 | 2015 | } |
fe4da5cc | 2016 | else return; |
37831078 | 2017 | |
2018 | //----------------------------------------------------------------- | |
fe4da5cc | 2019 | // charged particle is in the sensitive volume |
37831078 | 2020 | //----------------------------------------------------------------- |
fe4da5cc | 2021 | |
cfce8870 | 2022 | if(gMC->TrackStep() > 0) { |
fe4da5cc | 2023 | |
73042f01 | 2024 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
fe4da5cc | 2025 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
2026 | ||
37831078 | 2027 | gMC->TrackPosition(p); |
2028 | hits[0]=p[0]; | |
2029 | hits[1]=p[1]; | |
2030 | hits[2]=p[2]; | |
fe4da5cc | 2031 | hits[3]=(Float_t)nel; |
2032 | ||
2033 | // Add this hit | |
2034 | ||
6a905708 | 2035 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2036 | if (fHitType&&2){ | |
2037 | gMC->TrackMomentum(p); | |
2038 | Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
2039 | Float_t precision = (momentum>0.1) ? 0.002 :0.01; | |
2040 | fTrackHits->SetHitPrecision(precision); | |
2041 | } | |
2042 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
fe4da5cc | 2043 | |
2044 | } | |
2045 | ||
2046 | // Stemax calculation for the next step | |
2047 | ||
2048 | Float_t pp; | |
0a6d8768 | 2049 | TLorentzVector mom; |
2050 | gMC->TrackMomentum(mom); | |
2051 | Float_t ptot=mom.Rho(); | |
73042f01 | 2052 | Float_t betaGamma = ptot/gMC->TrackMass(); |
fe4da5cc | 2053 | |
69e40cce | 2054 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 2055 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
fe4da5cc | 2056 | { |
73042f01 | 2057 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
fe4da5cc | 2058 | } |
2059 | else | |
2060 | { | |
595bf2c3 | 2061 | |
07521998 | 2062 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg |
595bf2c3 | 2063 | pp=kprim*BetheBloch(betaGamma); |
2064 | ||
fe4da5cc | 2065 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
2066 | } | |
2067 | ||
2068 | Float_t random[1]; | |
cfce8870 | 2069 | gMC->Rndm(random,1); // good, old GRNDM from Geant3 |
fe4da5cc | 2070 | |
2071 | Double_t rnd = (Double_t)random[0]; | |
2072 | ||
cfce8870 | 2073 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); |
fe4da5cc | 2074 | |
2075 | } | |
2076 | ||
2077 | //_____________________________________________________________________________ | |
2078 | Float_t AliTPCv2::BetheBloch(Float_t bg) | |
2079 | { | |
2080 | // | |
2081 | // Bethe-Bloch energy loss formula | |
2082 | // | |
73042f01 | 2083 | const Double_t kp1=0.76176e-1; |
2084 | const Double_t kp2=10.632; | |
2085 | const Double_t kp3=0.13279e-4; | |
2086 | const Double_t kp4=1.8631; | |
2087 | const Double_t kp5=1.9479; | |
fe4da5cc | 2088 | |
2089 | Double_t dbg = (Double_t) bg; | |
2090 | ||
2091 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
2092 | ||
73042f01 | 2093 | Double_t aa = TMath::Power(beta,kp4); |
2094 | Double_t bb = TMath::Power(1./dbg,kp5); | |
fe4da5cc | 2095 | |
73042f01 | 2096 | bb=TMath::Log(kp3+bb); |
fe4da5cc | 2097 | |
73042f01 | 2098 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); |
fe4da5cc | 2099 | } |
73042f01 | 2100 | |
2101 |