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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 | $Log$ | |
a01ca9f6 | 18 | Revision 1.47 2003/03/04 15:16:54 kowal2 |
19 | Geometry corrected for an overlap | |
20 | ||
dcf38560 | 21 | Revision 1.46 2003/02/11 16:54:07 hristov |
22 | Updated AliTrackReference class (S.Radomski) | |
23 | ||
2d74ba4f | 24 | Revision 1.45 2003/01/14 10:50:20 alibrary |
25 | Cleanup of STEER coding conventions | |
26 | ||
116cbefd | 27 | Revision 1.44 2002/11/21 22:43:32 alibrary |
28 | Removing AliMC and AliMCProcess | |
29 | ||
4c475d27 | 30 | Revision 1.43 2002/10/14 14:57:43 hristov |
31 | Merging the VirtualMC branch to the main development branch (HEAD) | |
32 | ||
b9d0a01d | 33 | Revision 1.40.6.2 2002/07/24 10:09:01 alibrary |
34 | Updating VirtualMC | |
35 | ||
36 | Revision 1.42 2002/06/12 14:56:56 kowal2 | |
37 | Added track length to the reference hits | |
38 | ||
ac4fb434 | 39 | Revision 1.41 2002/05/27 14:33:15 hristov |
40 | The new class AliTrackReference used (M.Ivanov) | |
41 | ||
da33556f | 42 | Revision 1.40 2002/01/21 17:12:00 kowal2 |
43 | New track hits structure using root containers | |
44 | ||
4ed5dced | 45 | Revision 1.39 2001/05/16 14:57:25 alibrary |
46 | New files for folders and Stack | |
47 | ||
9e1a0ddb | 48 | Revision 1.38 2001/05/08 16:03:06 kowal2 |
49 | Geometry update according to the latest technical spec. | |
50 | ||
cea9b4f7 | 51 | Revision 1.37 2001/04/27 15:23:07 kowal2 |
52 | Correct materian in the central part of the inner containment vessel | |
53 | ||
90222263 | 54 | Revision 1.36 2001/04/26 06:15:12 kowal2 |
55 | Corrected bug in the inner containment vessel (cones) | |
56 | ||
f4900c61 | 57 | Revision 1.35 2001/04/24 11:17:33 kowal2 |
58 | New TPC geometry. | |
59 | ||
79575d04 | 60 | Revision 1.34 2001/04/23 10:20:18 hristov |
61 | Constant casted to avoid ambiguity | |
62 | ||
07521998 | 63 | Revision 1.33 2001/04/20 08:16:47 kowal2 |
64 | Protection against too small betaGamma. Thanks to Ivana and Yves. | |
65 | ||
595bf2c3 | 66 | Revision 1.32 2001/03/13 13:07:34 kowal2 |
67 | Corrected bug in the TPC mother volume geometry. | |
68 | Thanks to A. Morsch | |
69 | ||
7ab50f40 | 70 | Revision 1.31 2000/11/30 11:48:50 kowal2 |
71 | TLorentzVector.h adde to satisfy the latest changes by Federico | |
72 | ||
a383b30d | 73 | Revision 1.30 2000/11/14 10:48:57 kowal2 |
74 | Correct material used for TSA4. Thanks to J. Barbosa. | |
75 | ||
2c668420 | 76 | Revision 1.29 2000/11/06 17:24:10 kowal2 |
77 | Corrected bug in the outer containment vessel and | |
78 | the outer field cage geometry. | |
79 | Thanks to J. Barbosa. | |
80 | ||
720b23b8 | 81 | Revision 1.28 2000/11/02 16:55:24 kowal2 |
82 | Corrected bug in the inner containment vessel geometry. | |
83 | Thanks to J. Belikov | |
84 | ||
08db548a | 85 | Revision 1.27 2000/11/02 07:24:11 kowal2 |
86 | Correction in the TPC geometry. | |
87 | Changes due to the new hit structure. | |
88 | ||
6a905708 | 89 | Revision 1.26 2000/10/05 16:16:29 kowal2 |
90 | Corrections of the hit recording algorithm. | |
91 | ||
d4c354b9 | 92 | Revision 1.25 2000/10/02 21:28:18 fca |
93 | Removal of useless dependecies via forward declarations | |
94 | ||
94de3818 | 95 | Revision 1.24 2000/08/28 10:02:30 kowal2 |
96 | Corrected bug in the StepManager | |
97 | ||
930ee558 | 98 | Revision 1.23 2000/07/10 20:57:39 hristov |
99 | Update of TPC code and macros by M.Kowalski | |
100 | ||
37831078 | 101 | Revision 1.22 2000/06/30 12:07:50 kowal2 |
102 | Updated from the TPC-PreRelease branch | |
103 | ||
73042f01 | 104 | Revision 1.21.2.4 2000/06/26 07:39:42 kowal2 |
105 | Changes to obey the coding rules | |
106 | ||
107 | Revision 1.21.2.3 2000/06/25 08:38:41 kowal2 | |
108 | Splitted from AliTPCtracking | |
109 | ||
110 | Revision 1.21.2.2 2000/06/16 12:58:13 kowal2 | |
111 | Changed parameter settings | |
112 | ||
113 | Revision 1.21.2.1 2000/06/09 07:15:07 kowal2 | |
114 | ||
115 | Defaults loaded automatically (hard-wired) | |
116 | Optional parameters can be set via macro called in the constructor | |
117 | ||
118 | Revision 1.21 2000/05/15 10:00:30 kowal2 | |
119 | Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova | |
120 | ||
e94dd9ca | 121 | Revision 1.20 2000/04/17 09:37:33 kowal2 |
122 | removed obsolete AliTPCDigitsDisplay.C | |
123 | ||
cc80f89e | 124 | Revision 1.19.8.2 2000/04/10 08:31:52 kowal2 |
125 | ||
126 | Different geometry for different sectors | |
127 | Updated readout chambers | |
128 | Some modifications to StepManager by J.Belikov | |
129 | ||
130 | Revision 1.19.8.1 2000/04/10 07:56:53 kowal2 | |
131 | Not used anymore - removed | |
132 | ||
133 | Revision 1.19 1999/11/04 17:28:07 fca | |
134 | Correct barrel part of HV Degrader | |
135 | ||
a5371c42 | 136 | Revision 1.18 1999/10/14 16:52:08 fca |
137 | Only use PDG codes and not GEANT ones | |
138 | ||
69e40cce | 139 | Revision 1.17 1999/10/08 06:27:23 fca |
140 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
141 | ||
d183a600 | 142 | Revision 1.16 1999/10/04 13:39:54 fca |
143 | Correct array index problem | |
144 | ||
cdde5b1e | 145 | Revision 1.15 1999/09/29 09:24:34 fca |
146 | Introduction of the Copyright and cvs Log | |
147 | ||
4c039060 | 148 | */ |
149 | ||
73042f01 | 150 | // |
fe4da5cc | 151 | /////////////////////////////////////////////////////////////////////////////// |
152 | // // | |
153 | // Time Projection Chamber version 2 -- detailed TPC and slow simulation // | |
154 | // // | |
155 | //Begin_Html | |
156 | /* | |
1439f98e | 157 | <img src="picts/AliTPCv2Class.gif"> |
fe4da5cc | 158 | */ |
159 | //End_Html | |
160 | // // | |
161 | // // | |
162 | /////////////////////////////////////////////////////////////////////////////// | |
116cbefd | 163 | |
2a49965d | 164 | #include <stdlib.h> |
fe4da5cc | 165 | |
166 | #include <TMath.h> | |
116cbefd | 167 | #include <TPDGCode.h> |
bcac8ae4 | 168 | |
fe4da5cc | 169 | #include "AliConst.h" |
116cbefd | 170 | #include "AliRun.h" |
171 | #include "AliTPCDigitsArray.h" | |
73042f01 | 172 | #include "AliTPCParam.h" |
173 | #include "AliTPCParamSR.h" | |
4ed5dced | 174 | #include "AliTPCTrackHitsV2.h" |
116cbefd | 175 | #include "AliTPCv2.h" |
a383b30d | 176 | #include "TLorentzVector.h" |
6a905708 | 177 | |
fe4da5cc | 178 | ClassImp(AliTPCv2) |
179 | ||
180 | //_____________________________________________________________________________ | |
181 | AliTPCv2::AliTPCv2(const char *name, const char *title) : | |
182 | AliTPC(name, title) | |
183 | { | |
184 | // | |
185 | // Standard constructor for Time Projection Chamber version 2 | |
186 | // | |
37831078 | 187 | fIdSens=0; |
188 | fIdLSec=0; | |
189 | fIdUSec=0; | |
190 | ||
fe4da5cc | 191 | SetBufferSize(128000); |
73042f01 | 192 | |
193 | SetGasMixt(2,20,10,-1,0.9,0.1,0.); // Ne-CO2 90-10 | |
194 | ||
195 | // Default sectors | |
196 | ||
197 | SetSecAL(4); | |
198 | SetSecAU(4); | |
199 | SetSecLows(1, 2, 3, 19, 20, 21); | |
200 | SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1); | |
37831078 | 201 | SetSens(1); // sensitive strips set |
73042f01 | 202 | |
203 | if (fTPCParam) | |
204 | fTPCParam->Write(fTPCParam->GetTitle()); | |
fe4da5cc | 205 | } |
206 | ||
207 | //_____________________________________________________________________________ | |
208 | void AliTPCv2::CreateGeometry() | |
209 | { | |
210 | // | |
211 | // Create the geometry of Time Projection Chamber version 2 | |
212 | // | |
213 | //Begin_Html | |
214 | /* | |
37831078 | 215 | <img src="picts/AliTPC.gif"> |
fe4da5cc | 216 | */ |
217 | //End_Html | |
218 | //Begin_Html | |
219 | /* | |
1439f98e | 220 | <img src="picts/AliTPCv2Tree.gif"> |
fe4da5cc | 221 | */ |
222 | //End_Html | |
223 | ||
8c555625 | 224 | |
1283eee5 | 225 | Int_t *idtmed = fIdtmed->GetArray(); |
226 | ||
37831078 | 227 | Float_t dm[50]; |
62a73ee5 | 228 | Int_t idrotm[120]; |
1283eee5 | 229 | |
230 | Int_t nRotMat = 0; | |
231 | ||
d4c354b9 | 232 | Int_t i,ifl1=0; |
1283eee5 | 233 | |
37831078 | 234 | // number of sectors |
235 | ||
1283eee5 | 236 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; |
237 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
fe4da5cc | 238 | |
239 | // --------------------------------------------------- | |
240 | // sector specification check | |
241 | // --------------------------------------------------- | |
242 | if (fSecAL >= 0) { | |
243 | ifl1 = 0; | |
244 | ||
245 | for (i = 0; i < 6; ++i) { | |
1283eee5 | 246 | if (fSecLows[i] >= 0 && fSecLows[i] < 2*nInnerSector) { |
fe4da5cc | 247 | ifl1 = 1; |
9e1a0ddb | 248 | printf("%s: *** SECTOR %d selected\n",ClassName(),fSecLows[i]); |
fe4da5cc | 249 | } |
250 | } | |
251 | ||
252 | } else { | |
9e1a0ddb | 253 | printf("%s: *** ALL LOWER SECTORS SELECTED ***\n",ClassName()); |
8c555625 | 254 | ifl1 = 1; |
fe4da5cc | 255 | } |
256 | ||
d4c354b9 | 257 | if (ifl1 == 0) { |
9e1a0ddb | 258 | printf("%s: *** ERROR: AT LEAST ONE LOWER SECTOR MUST BE SPECIFIED ***\n",ClassName()); |
259 | printf("%s: !!! PROGRAM STOPPED !!!\n",ClassName()); | |
d4c354b9 | 260 | exit(1); |
261 | } | |
262 | ||
fe4da5cc | 263 | if (fSecAU >= 0) { |
fe4da5cc | 264 | |
265 | for (i = 0; i < 12; ++i) { | |
1283eee5 | 266 | if (fSecUps[i] > 2*nInnerSector-1 && |
267 | fSecUps[i] < 2*(nInnerSector+nOuterSector)) { | |
9e1a0ddb | 268 | printf("%s: *** SECTOR %d selected\n",ClassName(),fSecUps[i]); |
fe4da5cc | 269 | } |
270 | } | |
271 | ||
272 | } else { | |
9e1a0ddb | 273 | printf("%s: *** ALL UPPER SECTORS SELECTED ***\n",ClassName()); |
fe4da5cc | 274 | } |
275 | ||
d4c354b9 | 276 | |
37831078 | 277 | |
278 | //-------------------------------------------------------------------- | |
279 | ||
280 | // | |
79575d04 | 281 | // Mother volume TPC (Air) - all volumes will be positioned in it |
37831078 | 282 | // |
79575d04 | 283 | |
37831078 | 284 | dm[0]=0.; |
285 | dm[1]=360.; | |
79575d04 | 286 | dm[2]=8.; |
1283eee5 | 287 | |
37831078 | 288 | // |
1283eee5 | 289 | |
79575d04 | 290 | dm[3]=-283.7; |
291 | dm[4]=65.6; | |
292 | dm[5]=278.; | |
1283eee5 | 293 | |
37831078 | 294 | // |
1283eee5 | 295 | |
79575d04 | 296 | dm[6]=-253.6; |
297 | dm[7]=65.6; | |
298 | dm[8]=278.; | |
1283eee5 | 299 | |
37831078 | 300 | // |
1283eee5 | 301 | |
79575d04 | 302 | dm[9]=-73.3; |
303 | dm[10]=60.9; | |
304 | dm[11]=278.; | |
1283eee5 | 305 | |
37831078 | 306 | // |
1283eee5 | 307 | |
79575d04 | 308 | dm[12]=-73.3; |
309 | dm[13]=56.9; | |
310 | dm[14]=278.; | |
1283eee5 | 311 | |
37831078 | 312 | // |
1283eee5 | 313 | |
79575d04 | 314 | dm[15]=73.3; |
315 | dm[16]=56.9; | |
316 | dm[17]=278.; | |
1283eee5 | 317 | |
37831078 | 318 | // |
1283eee5 | 319 | |
79575d04 | 320 | dm[18]=73.3; |
321 | dm[19]=60.9; | |
322 | dm[20]=278.; | |
1283eee5 | 323 | |
37831078 | 324 | // |
1283eee5 | 325 | |
79575d04 | 326 | dm[21]=253.6; |
327 | dm[22]=65.6; | |
328 | dm[23]=278.; | |
1283eee5 | 329 | |
37831078 | 330 | // |
1283eee5 | 331 | |
79575d04 | 332 | dm[24]=283.7; |
333 | dm[25]=65.6; | |
334 | dm[26]=278.; | |
335 | ||
336 | gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27); | |
1283eee5 | 337 | |
79575d04 | 338 | // outer part |
1283eee5 | 339 | |
37831078 | 340 | //------------------------------------------------------------------- |
79575d04 | 341 | // Tpc Outer INsulator (CO2) - contains cont. vessel and field cage |
37831078 | 342 | //------------------------------------------------------------------- |
1283eee5 | 343 | |
37831078 | 344 | dm[0]= 0.; |
345 | dm[1]= 360.; | |
346 | dm[2]= 6.; | |
1283eee5 | 347 | |
37831078 | 348 | // |
1283eee5 | 349 | |
79575d04 | 350 | dm[3]=-253.6; |
351 | dm[4]=258.; | |
352 | dm[5]=275.5; | |
1283eee5 | 353 | |
37831078 | 354 | // |
1283eee5 | 355 | |
79575d04 | 356 | dm[6]=-250.6; |
357 | dm[7]=258.; | |
358 | dm[8]=275.5; | |
1283eee5 | 359 | |
37831078 | 360 | // |
cc80f89e | 361 | |
79575d04 | 362 | dm[9]=-250.6; |
363 | dm[10]=258.; | |
364 | dm[11]=278.; | |
1283eee5 | 365 | |
79575d04 | 366 | // |
1283eee5 | 367 | |
79575d04 | 368 | dm[12]=253.6; |
369 | dm[13]=258.; | |
370 | dm[14]=278.; | |
1283eee5 | 371 | |
37831078 | 372 | // |
1283eee5 | 373 | |
79575d04 | 374 | dm[15]=253.6; |
375 | dm[16]=264.8; | |
376 | dm[17]=278.; | |
1283eee5 | 377 | |
37831078 | 378 | // |
1283eee5 | 379 | |
79575d04 | 380 | dm[18]=256.6; |
381 | dm[19]=264.8; | |
382 | dm[20]=278.; | |
1283eee5 | 383 | |
79575d04 | 384 | gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21); |
1283eee5 | 385 | |
37831078 | 386 | //---------------------------------------------------------------- |
387 | // Tpc Outer Contaiment Vessel | |
388 | // mother volume - Al, daughters - composite (sandwich) | |
389 | //---------------------------------------------------------------- | |
79575d04 | 390 | |
391 | dm[0]=0.; | |
392 | dm[1]=360.; | |
720b23b8 | 393 | dm[2]=6.; |
1283eee5 | 394 | |
37831078 | 395 | // |
cc80f89e | 396 | |
79575d04 | 397 | dm[3]=-250.6; |
398 | dm[4]=270.4; | |
399 | dm[5]=278.; | |
1283eee5 | 400 | |
37831078 | 401 | // |
1283eee5 | 402 | |
79575d04 | 403 | dm[6]=-247.6; |
404 | dm[7]=270.4; | |
405 | dm[8]=278.; | |
1283eee5 | 406 | |
37831078 | 407 | // |
79575d04 | 408 | |
409 | dm[9]=-247.6; | |
cea9b4f7 | 410 | dm[10]=274.8124; |
79575d04 | 411 | dm[11]=278.; |
412 | ||
37831078 | 413 | // |
1283eee5 | 414 | |
79575d04 | 415 | dm[12]=253.6; |
cea9b4f7 | 416 | dm[13]=274.8124; |
79575d04 | 417 | dm[14]=278.; |
1283eee5 | 418 | |
720b23b8 | 419 | // |
1283eee5 | 420 | |
79575d04 | 421 | dm[15]=253.6; |
422 | dm[16]=264.8; | |
423 | dm[17]=278.; | |
1283eee5 | 424 | |
79575d04 | 425 | // |
720b23b8 | 426 | |
79575d04 | 427 | dm[18]=256.6; |
428 | dm[19]=264.8; | |
429 | dm[20]=278.; | |
720b23b8 | 430 | |
431 | gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21); | |
1283eee5 | 432 | |
79575d04 | 433 | // Daughter volumes - sandwich |
1283eee5 | 434 | |
37831078 | 435 | // Tpc SAndwich 1 - Al |
79575d04 | 436 | |
cea9b4f7 | 437 | dm[0]=274.8124; |
79575d04 | 438 | dm[1]=278.; |
439 | dm[2]=252.1; | |
1283eee5 | 440 | |
37831078 | 441 | gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3); |
1283eee5 | 442 | |
79575d04 | 443 | // Tpc SAndwich 2 - epoxy glue (I use Lexan) |
1283eee5 | 444 | |
37831078 | 445 | dm[0] += 5.e-3; |
446 | dm[1] -= 5.e-3; | |
79575d04 | 447 | |
448 | gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3); | |
449 | ||
450 | // Tpc SAndwich 3 - Tedlar | |
451 | ||
452 | dm[0] += 0.01; | |
453 | dm[1] -= 0.01; | |
37831078 | 454 | |
79575d04 | 455 | gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3); |
1283eee5 | 456 | |
8c555625 | 457 | |
79575d04 | 458 | // Tpc SAndwich 4 - fiber glass (G10) |
8c555625 | 459 | |
cea9b4f7 | 460 | dm[0] += 3.8e-3; |
461 | dm[1] -= 3.8e-3; | |
8c555625 | 462 | |
79575d04 | 463 | gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3); |
1283eee5 | 464 | |
79575d04 | 465 | // Tpc SAndwich 5 - NOMEX honeycomb |
1283eee5 | 466 | |
79575d04 | 467 | dm[0] += 0.075; |
468 | dm[1] -= 0.075; | |
37831078 | 469 | |
79575d04 | 470 | gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3); |
471 | ||
472 | // 5->4->3->2->1->TCOV | |
8c555625 | 473 | |
79575d04 | 474 | |
475 | gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY"); | |
37831078 | 476 | gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY"); |
477 | gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY"); | |
79575d04 | 478 | gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 479 | |
79575d04 | 480 | gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY"); |
fe4da5cc | 481 | |
37831078 | 482 | // TCOV-> TOIN |
fe4da5cc | 483 | |
37831078 | 484 | gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 485 | |
37831078 | 486 | //------------------------------------------------------- |
487 | // Tpc Outer Field Cage | |
488 | // mother volume - Al, daughters - composite (sandwich) | |
489 | //------------------------------------------------------- | |
1283eee5 | 490 | |
37831078 | 491 | dm[0]=0.; |
492 | dm[1]=360.; | |
493 | dm[2]=6.; | |
1283eee5 | 494 | |
79575d04 | 495 | // |
496 | ||
497 | dm[3]=-253.6; | |
498 | dm[4]=258.; | |
499 | dm[5]=275.5; | |
1283eee5 | 500 | |
37831078 | 501 | // |
1283eee5 | 502 | |
79575d04 | 503 | dm[6]=-250.6; |
504 | dm[7]=258.; | |
505 | dm[8]=275.5; | |
1283eee5 | 506 | |
37831078 | 507 | // |
79575d04 | 508 | |
509 | dm[9]=-250.6; | |
510 | dm[10]=258.; | |
cea9b4f7 | 511 | dm[11]=260.0476; |
1283eee5 | 512 | |
37831078 | 513 | // |
1283eee5 | 514 | |
79575d04 | 515 | dm[12]=250.6; |
516 | dm[13]=258.; | |
cea9b4f7 | 517 | dm[14]=260.0476; |
1283eee5 | 518 | |
37831078 | 519 | // |
1283eee5 | 520 | |
79575d04 | 521 | dm[15]=250.6; |
522 | dm[16]=258.; | |
dcf38560 | 523 | dm[17]=269.6; |
1283eee5 | 524 | |
37831078 | 525 | // |
1283eee5 | 526 | |
79575d04 | 527 | dm[18]=253.6; |
528 | dm[19]=258.; | |
dcf38560 | 529 | dm[20]=269.6; |
1283eee5 | 530 | |
79575d04 | 531 | gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21); |
1283eee5 | 532 | |
37831078 | 533 | // Daughter volumes |
1283eee5 | 534 | |
79575d04 | 535 | // Tpc SAndwich 6 - Tedlar |
1283eee5 | 536 | |
37831078 | 537 | dm[0]= 258.; |
cea9b4f7 | 538 | dm[1]= 260.0476; |
79575d04 | 539 | dm[2]= 252.1; |
1283eee5 | 540 | |
79575d04 | 541 | gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3); |
1283eee5 | 542 | |
79575d04 | 543 | // Tpc SAndwich 7 - fiber glass |
1283eee5 | 544 | |
cea9b4f7 | 545 | dm[0] += 3.8e-3; |
546 | dm[1] -= 3.8e-3; | |
1283eee5 | 547 | |
79575d04 | 548 | gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3); |
1283eee5 | 549 | |
1283eee5 | 550 | |
37831078 | 551 | // Tpc SAndwich 8 - NOMEX |
1283eee5 | 552 | |
37831078 | 553 | dm[0] += 0.02; |
554 | dm[1] -= 0.02; | |
1283eee5 | 555 | |
79575d04 | 556 | gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3); |
1283eee5 | 557 | |
79575d04 | 558 | // 8->7->6->TOFC |
1283eee5 | 559 | |
79575d04 | 560 | gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY"); |
561 | gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY"); | |
562 | gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY"); | |
fe4da5cc | 563 | |
dcf38560 | 564 | // TOFC->TOIN |
565 | // TOFC overlaps with | |
fe4da5cc | 566 | |
79575d04 | 567 | gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 568 | |
37831078 | 569 | // TOIN->TPC |
1283eee5 | 570 | |
37831078 | 571 | gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY"); |
1283eee5 | 572 | |
79575d04 | 573 | // inner part |
1283eee5 | 574 | |
79575d04 | 575 | //-------------------------------------------------------------------- |
576 | // Tpc Inner INsulator (CO2) - inner f.c. will be placed there | |
577 | // Inner containment vessel will be placed directly in the TPC | |
578 | //-------------------------------------------------------------------- | |
1283eee5 | 579 | |
37831078 | 580 | dm[0]=0.; |
79575d04 | 581 | dm[1]=360.; |
582 | dm[2]=4.; | |
1283eee5 | 583 | |
79575d04 | 584 | // |
1283eee5 | 585 | |
79575d04 | 586 | dm[3]=-253.6; |
587 | dm[4]=65.9; | |
588 | dm[5]=79.2; | |
1283eee5 | 589 | |
37831078 | 590 | // |
1283eee5 | 591 | |
79575d04 | 592 | dm[6]=-73.3; |
593 | dm[7]=61.2; | |
594 | dm[8]=79.2; | |
1283eee5 | 595 | |
37831078 | 596 | // |
1283eee5 | 597 | |
79575d04 | 598 | dm[9]=73.3; |
599 | dm[10]=61.2; | |
600 | dm[11]=79.2; | |
1283eee5 | 601 | |
37831078 | 602 | // |
1283eee5 | 603 | |
79575d04 | 604 | dm[12]=253.6; |
605 | dm[13]=65.9; | |
606 | dm[14]=79.2; | |
1283eee5 | 607 | |
79575d04 | 608 | gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15); |
1283eee5 | 609 | |
79575d04 | 610 | // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2 |
1283eee5 | 611 | |
79575d04 | 612 | dm[0]=79.16; |
613 | dm[1]=79.2; | |
614 | dm[2]=88.; | |
1283eee5 | 615 | |
79575d04 | 616 | gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3); |
1283eee5 | 617 | |
79575d04 | 618 | gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 619 | |
79575d04 | 620 | //----------------------------------------------------- |
621 | // Tpc Inner Field Cage | |
622 | // mother volume - Al, daughters - composite (sandwich) | |
623 | //------------------------------------------------------ | |
1283eee5 | 624 | |
79575d04 | 625 | dm[0]=0.; |
626 | dm[1]=360.; | |
627 | dm[2]=10.; | |
1283eee5 | 628 | |
37831078 | 629 | // |
1283eee5 | 630 | |
79575d04 | 631 | dm[3]=-253.6; |
632 | dm[4]=70.3; | |
633 | dm[5]=79.2; | |
1283eee5 | 634 | |
37831078 | 635 | // |
1283eee5 | 636 | |
79575d04 | 637 | dm[6]=-250.6; |
638 | dm[7]=70.3; | |
639 | dm[8]=79.2; | |
1283eee5 | 640 | |
37831078 | 641 | // |
1283eee5 | 642 | |
79575d04 | 643 | dm[9]=-250.6; |
cea9b4f7 | 644 | dm[10]=77.0524; |
79575d04 | 645 | dm[11]=79.2; |
37831078 | 646 | |
647 | // | |
648 | ||
79575d04 | 649 | dm[12]=-88.; |
cea9b4f7 | 650 | dm[13]=77.0524; |
79575d04 | 651 | dm[14]=79.2; |
1283eee5 | 652 | |
37831078 | 653 | // |
1283eee5 | 654 | |
79575d04 | 655 | dm[15]=-88.; |
cea9b4f7 | 656 | dm[16]=77.0924; |
79575d04 | 657 | dm[17]=79.16; |
1283eee5 | 658 | |
659 | // | |
37831078 | 660 | |
79575d04 | 661 | dm[18]=88.; |
cea9b4f7 | 662 | dm[19]=77.0924; |
79575d04 | 663 | dm[20]=79.16; |
37831078 | 664 | |
1283eee5 | 665 | // |
666 | ||
79575d04 | 667 | dm[21]=88.; |
cea9b4f7 | 668 | dm[22]=77.0524; |
79575d04 | 669 | dm[23]=79.2; |
1283eee5 | 670 | |
37831078 | 671 | // |
1283eee5 | 672 | |
79575d04 | 673 | dm[24]=250.6; |
cea9b4f7 | 674 | dm[25]=77.0524; |
79575d04 | 675 | dm[26]=79.2; |
1283eee5 | 676 | |
37831078 | 677 | // |
1283eee5 | 678 | |
79575d04 | 679 | dm[27]=250.6; |
680 | dm[28]=70.3; | |
681 | dm[29]=79.2; | |
1283eee5 | 682 | |
37831078 | 683 | // |
1283eee5 | 684 | |
79575d04 | 685 | dm[30]=253.6; |
686 | dm[31]=70.3; | |
687 | dm[32]=79.2; | |
1283eee5 | 688 | |
79575d04 | 689 | gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33); |
1283eee5 | 690 | |
79575d04 | 691 | // daughter volumes - central part |
1283eee5 | 692 | |
79575d04 | 693 | // Tpc Sandwich 9 -Tedlar |
1283eee5 | 694 | |
cea9b4f7 | 695 | dm[0]=77.0924; |
79575d04 | 696 | dm[1]=79.16; |
697 | dm[2]=88.; | |
1283eee5 | 698 | |
79575d04 | 699 | gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3); |
1283eee5 | 700 | |
79575d04 | 701 | // Tpc Sandwich 10 - fiber glass (G10) |
1283eee5 | 702 | |
cea9b4f7 | 703 | dm[0] += 3.8e-3; |
704 | dm[1] -= 3.8e-3; | |
1283eee5 | 705 | |
79575d04 | 706 | gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3); |
1283eee5 | 707 | |
79575d04 | 708 | // Tpc Sandwich 11 - NOMEX |
1283eee5 | 709 | |
79575d04 | 710 | dm[0] += 0.03; |
711 | dm[1] -= 0.03; | |
1283eee5 | 712 | |
79575d04 | 713 | gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3); |
1283eee5 | 714 | |
79575d04 | 715 | // 11->10->9->TIFC |
1283eee5 | 716 | |
79575d04 | 717 | gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY"); |
718 | gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 719 | |
79575d04 | 720 | gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY"); |
1283eee5 | 721 | |
79575d04 | 722 | // daughter volumes - outer parts (reinforced) |
1283eee5 | 723 | |
79575d04 | 724 | // Tpc Sandwich 12 -Tedlar |
1283eee5 | 725 | |
cea9b4f7 | 726 | dm[0]=77.0524; |
79575d04 | 727 | dm[1]=79.2; |
728 | dm[2]=82.05; | |
1283eee5 | 729 | |
79575d04 | 730 | gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3); |
1283eee5 | 731 | |
79575d04 | 732 | // Tpc Sandwich 13 - fiber glass (G10) |
1283eee5 | 733 | |
cea9b4f7 | 734 | dm[0] += 3.8e-3; |
735 | dm[1] -= 3.8e-3; | |
1283eee5 | 736 | |
79575d04 | 737 | gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3); |
1283eee5 | 738 | |
79575d04 | 739 | // Tpc Sandwich 14 - NOMEX |
1283eee5 | 740 | |
79575d04 | 741 | dm[0] += 0.07; |
742 | dm[1] -= 0.07; | |
1283eee5 | 743 | |
79575d04 | 744 | gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3); |
1283eee5 | 745 | |
79575d04 | 746 | // 14->13->12->TIFC |
1283eee5 | 747 | |
79575d04 | 748 | gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY"); |
749 | gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 750 | |
79575d04 | 751 | gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY"); |
752 | gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY"); | |
1283eee5 | 753 | |
79575d04 | 754 | // place this inside the inner insulator |
1283eee5 | 755 | |
79575d04 | 756 | gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 757 | |
79575d04 | 758 | // and now in the TPC... |
1283eee5 | 759 | |
79575d04 | 760 | gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY"); |
37831078 | 761 | |
79575d04 | 762 | //--------------------------------------------------------- |
763 | // Tpc Inner Containment vessel - Cones | |
764 | //--------------------------------------------------------- | |
1283eee5 | 765 | |
79575d04 | 766 | dm[0]=0.; |
767 | dm[1]=360.; | |
37831078 | 768 | dm[2]=8.; |
1283eee5 | 769 | |
37831078 | 770 | // |
1283eee5 | 771 | |
79575d04 | 772 | dm[3]=71.8; |
773 | dm[4]=56.9; | |
774 | dm[5]=59.4; | |
1283eee5 | 775 | |
37831078 | 776 | // |
1283eee5 | 777 | |
79575d04 | 778 | dm[6]=73.; |
779 | dm[7]=56.9; | |
780 | dm[8]=59.4; | |
1283eee5 | 781 | |
37831078 | 782 | // |
1283eee5 | 783 | |
79575d04 | 784 | dm[9]=73.; |
785 | dm[10]=56.9; | |
786 | dm[11]=61.2; | |
1283eee5 | 787 | |
37831078 | 788 | // |
1283eee5 | 789 | |
79575d04 | 790 | dm[12]=73.3; |
791 | dm[13]=56.9; | |
792 | dm[14]=61.2; | |
1283eee5 | 793 | |
37831078 | 794 | // |
79575d04 | 795 | |
796 | dm[15]=73.3; | |
797 | dm[16]=60.9; | |
798 | dm[17]=61.2; | |
1283eee5 | 799 | |
79575d04 | 800 | // |
1283eee5 | 801 | |
79575d04 | 802 | dm[18]=253.6; |
803 | dm[19]=65.6; | |
804 | dm[20]=65.9; | |
1283eee5 | 805 | |
37831078 | 806 | // |
1283eee5 | 807 | |
79575d04 | 808 | dm[21]=253.6; |
809 | dm[22]=65.6; | |
f4900c61 | 810 | dm[23]=74.6; |
1283eee5 | 811 | |
37831078 | 812 | // |
1283eee5 | 813 | |
f4900c61 | 814 | dm[24]=256.6; |
79575d04 | 815 | dm[25]=65.6; |
f4900c61 | 816 | dm[26]=74.6; |
1283eee5 | 817 | |
79575d04 | 818 | gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27); |
1283eee5 | 819 | |
79575d04 | 820 | Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles |
1283eee5 | 821 | |
79575d04 | 822 | // reflection matrix |
823 | ||
824 | theta1 = 90.; | |
825 | phi1 = 0.; | |
826 | theta2 = 90.; | |
827 | phi2 = 270.; | |
828 | theta3 = 180.; | |
829 | phi3 = 0.; | |
1283eee5 | 830 | |
79575d04 | 831 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); |
1283eee5 | 832 | |
79575d04 | 833 | gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY"); |
834 | gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
1283eee5 | 835 | |
1283eee5 | 836 | |
79575d04 | 837 | //--------------------------------------------------------- |
838 | // Tpc Inner Containment vessel - Middle part -Al | |
839 | //--------------------------------------------------------- | |
1283eee5 | 840 | |
79575d04 | 841 | dm[0]=0.; |
842 | dm[1]=360.; | |
843 | dm[2]=6.; | |
1283eee5 | 844 | |
37831078 | 845 | // |
1283eee5 | 846 | |
79575d04 | 847 | dm[3]=-71.6; |
848 | dm[4]=60.2; | |
849 | dm[5]=61.2; | |
1283eee5 | 850 | |
37831078 | 851 | // |
1283eee5 | 852 | |
79575d04 | 853 | dm[6]=-69.1; |
854 | dm[7]=60.2; | |
855 | dm[8]=61.2; | |
1283eee5 | 856 | |
37831078 | 857 | // |
1283eee5 | 858 | |
79575d04 | 859 | dm[9]=-69.1; |
cea9b4f7 | 860 | dm[10]=60.6224; |
79575d04 | 861 | dm[11]=61.2; |
1283eee5 | 862 | |
fe4da5cc | 863 | // |
864 | ||
79575d04 | 865 | dm[12]=69.1; |
cea9b4f7 | 866 | dm[13]=60.6224; |
79575d04 | 867 | dm[14]=61.2; |
fe4da5cc | 868 | |
fe4da5cc | 869 | // |
870 | ||
79575d04 | 871 | dm[15]=69.1; |
872 | dm[16]=60.2; | |
873 | dm[17]=61.2; | |
37831078 | 874 | |
fe4da5cc | 875 | // |
37831078 | 876 | |
79575d04 | 877 | dm[18]=71.6; |
878 | dm[19]=60.2; | |
879 | dm[20]=61.2; | |
37831078 | 880 | |
79575d04 | 881 | gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21); |
fe4da5cc | 882 | |
79575d04 | 883 | // Tpc Sandwich 15 - Al |
37831078 | 884 | |
cea9b4f7 | 885 | dm[0]=60.6224; |
79575d04 | 886 | dm[1]=61.2; |
887 | dm[2]=70.1; | |
37831078 | 888 | |
79575d04 | 889 | gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3); |
fe4da5cc | 890 | |
79575d04 | 891 | // Tpc Sandwich 16 - epoxy glue |
fe4da5cc | 892 | |
79575d04 | 893 | dm[0] += 5.e-3; |
894 | dm[1] -= 5.e-3; | |
fe4da5cc | 895 | |
79575d04 | 896 | gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3); |
fe4da5cc | 897 | |
6a905708 | 898 | // Tpc Sandwich 17 - Tedlar |
37831078 | 899 | |
79575d04 | 900 | dm[0] += 0.01; |
901 | dm[1] -= 0.01; | |
37831078 | 902 | |
6a905708 | 903 | gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3); |
37831078 | 904 | |
cea9b4f7 | 905 | // Tpc Sandwich 18 - carbon fiber |
37831078 | 906 | |
cea9b4f7 | 907 | dm[0] += 3.8e-3; |
908 | dm[1] -= 3.8e-3; | |
37831078 | 909 | |
cea9b4f7 | 910 | gMC->Gsvolu("TS18","TUBE",idtmed[15],dm,3); |
37831078 | 911 | |
79575d04 | 912 | // Tpc Sandwich 19 - Nomex |
37831078 | 913 | |
cea9b4f7 | 914 | dm[0] += 0.02; |
915 | dm[1] -= 0.02; | |
37831078 | 916 | |
90222263 | 917 | gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3); |
37831078 | 918 | |
79575d04 | 919 | // 19->18->17->16->15-> TICM |
37831078 | 920 | |
79575d04 | 921 | gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY"); |
37831078 | 922 | gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY"); |
79575d04 | 923 | gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY"); |
924 | gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY"); | |
37831078 | 925 | |
79575d04 | 926 | gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY"); |
927 | ||
37831078 | 928 | |
79575d04 | 929 | // TPc inner cont. vessel Joints |
37831078 | 930 | |
79575d04 | 931 | dm[0]=60.2; |
932 | dm[1]=61.2; | |
933 | dm[2]=0.5; | |
37831078 | 934 | |
79575d04 | 935 | gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3); |
37831078 | 936 | |
79575d04 | 937 | gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY"); |
938 | gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY"); | |
37831078 | 939 | |
79575d04 | 940 | // |
37831078 | 941 | |
79575d04 | 942 | dm[0]=0.; |
943 | dm[1]=360.; | |
944 | dm[2]=4.; | |
37831078 | 945 | |
79575d04 | 946 | // |
37831078 | 947 | |
79575d04 | 948 | dm[3]=70.8; |
949 | dm[4]=58.4; | |
950 | dm[5]=60.1; | |
37831078 | 951 | |
79575d04 | 952 | // |
37831078 | 953 | |
79575d04 | 954 | dm[6]=71.2; |
955 | dm[7]=58.4; | |
956 | dm[8]=60.1; | |
37831078 | 957 | |
79575d04 | 958 | // |
37831078 | 959 | |
79575d04 | 960 | dm[9]=71.2; |
961 | dm[10]=58.4; | |
962 | dm[11]=59.4; | |
37831078 | 963 | |
79575d04 | 964 | // |
37831078 | 965 | |
79575d04 | 966 | dm[12]=71.6; |
967 | dm[13]=58.4; | |
968 | dm[14]=59.4; | |
37831078 | 969 | |
79575d04 | 970 | gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15); |
37831078 | 971 | |
79575d04 | 972 | gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY"); |
973 | gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
37831078 | 974 | |
37831078 | 975 | |
37831078 | 976 | |
79575d04 | 977 | // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being) |
37831078 | 978 | |
79575d04 | 979 | dm[0]=58.4; |
980 | dm[1]=61.2; | |
981 | dm[2]=0.1; | |
37831078 | 982 | |
79575d04 | 983 | gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3); |
37831078 | 984 | |
79575d04 | 985 | gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY"); |
986 | gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY"); | |
37831078 | 987 | |
79575d04 | 988 | // TICM -> TPC |
37831078 | 989 | |
79575d04 | 990 | gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY"); |
37831078 | 991 | |
79575d04 | 992 | // |
37831078 | 993 | |
79575d04 | 994 | nRotMat++; // prepare for the next rotation matrix |
37831078 | 995 | |
996 | //--------------------------------------------------------- | |
997 | // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10) | |
998 | // and its daughters (HV membrane, rods, readout chambers) | |
999 | //--------------------------------------------------------- | |
1000 | ||
1001 | dm[0]= 79.2; | |
1002 | dm[1]= 258.0; | |
1003 | dm[2]= 253.6; | |
1004 | ||
79575d04 | 1005 | gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3); |
37831078 | 1006 | |
79575d04 | 1007 | // sector opening angles |
37831078 | 1008 | |
1009 | Float_t innerOpenAngle = fTPCParam->GetInnerAngle(); | |
1010 | Float_t outerOpenAngle = fTPCParam->GetOuterAngle(); | |
1011 | ||
1012 | // sector angle shift | |
1013 | ||
1014 | Float_t innerAngleShift = fTPCParam->GetInnerAngleShift(); | |
1015 | ||
79575d04 | 1016 | |
37831078 | 1017 | // All above parameters are identical for inner and outer |
1018 | // sectors. The distinction is kept for the historical reasons | |
1019 | // and eventually will disappear. | |
1020 | ||
1021 | Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle); | |
1022 | Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha); | |
1023 | Float_t space; | |
1024 | ||
1025 | //------------------------------------------------------------------------- | |
1026 | // Tpc Inner Readout Chambers | |
1027 | //------------------------------------------------------------------------- | |
1028 | ||
1029 | dm[0]= 14.483; | |
1030 | dm[1]= 23.3345; | |
1031 | dm[2]= 1.6; // thickness | |
1032 | dm[3]= 25.1; | |
1033 | ||
1034 | gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4); | |
1035 | ||
1036 | // this volume will be positioned in the empty space | |
1037 | // of the end-cap to avoid overlaps | |
1038 | ||
1039 | dm[0]= 13.7305; | |
1040 | dm[1]= 21.1895; | |
1041 | dm[2]= 2.25; | |
1042 | dm[3]= 21.15; | |
1043 | ||
1044 | gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4); | |
1045 | ||
79575d04 | 1046 | |
37831078 | 1047 | //------------------------------------------------ |
1048 | // Tpc Inner readout chamber Pad Plane | |
1049 | //------------------------------------------------ | |
1050 | ||
1051 | dm[0]= 14.483; | |
1052 | dm[1]= 23.3345; | |
1053 | dm[2]= 0.5; | |
1054 | dm[3]= 25.1; | |
1055 | ||
1056 | gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4); | |
1057 | ||
1058 | // | |
1059 | ||
1060 | dm[0] -= 1.218511934; | |
1061 | dm[1] -= 1.218511934; | |
1062 | dm[2] = 0.35; | |
1063 | ||
1064 | gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4); | |
1065 | ||
1066 | gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY"); | |
1067 | ||
1068 | gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY"); | |
1069 | ||
79575d04 | 1070 | |
37831078 | 1071 | //---------------------------------------------- |
1072 | // Tpc Readout Chambers Empty spaces - for both | |
1073 | // inner and outer sectors | |
1074 | //---------------------------------------------- | |
1075 | ||
1076 | gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0); | |
1077 | ||
1078 | // Inner sector - 4 spaces | |
1079 | ||
1080 | ||
1081 | dm[3] = 4.7625; | |
1082 | dm[0] = 12.472; | |
1083 | ||
1084 | Float_t rr = 90.52; | |
1085 | Float_t zz; | |
1086 | ||
1087 | zz= -12.7875; | |
1088 | ||
1089 | space = rr*tanAlpha-dm[0]; | |
1090 | ||
1091 | for(Int_t nsLow=0;nsLow<4;nsLow++){ | |
1092 | ||
1093 | rr += 9.525; | |
1094 | dm[1]= rr*tanAlpha - space; | |
1095 | ||
1096 | dm[2]=0.8; | |
1097 | ||
1098 | gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4); | |
1099 | ||
1100 | // | |
1101 | ||
79575d04 | 1102 | dm[2] = 1.2; |
37831078 | 1103 | |
1104 | gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4); | |
1105 | ||
1106 | rr += 0.4; | |
1107 | dm[0] = rr*tanAlpha - space; | |
1108 | zz += (0.4+9.525); | |
1109 | ||
1110 | } | |
1111 | ||
1112 | dm[0]= 12.472; | |
1113 | // dm[1] - this is the dm[1] from the previous TRCE | |
1114 | dm[2]= 1.05; | |
1115 | dm[3]= 19.65; | |
1116 | ||
79575d04 | 1117 | gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4); |
37831078 | 1118 | |
1119 | // | |
1120 | // TPc Space for Connectors | |
1121 | // | |
1122 | ||
1123 | dm[0]= .3; | |
1124 | dm[1]= .3; | |
1125 | dm[2]= 4.5; | |
1126 | ||
1127 | gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3); | |
1128 | ||
1129 | // TPC Connectors | |
1130 | ||
1131 | dm[0]= .25; | |
1132 | dm[1]= .15; | |
1133 | dm[2]= 3.75; | |
1134 | ||
1135 | gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3); | |
1136 | ||
1137 | gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY"); | |
1138 | ||
1139 | zz = -12.7875; | |
1140 | ||
79575d04 | 1141 | |
37831078 | 1142 | Float_t alpha; |
1143 | Float_t astep; | |
1144 | ||
37831078 | 1145 | // inner part of the inner sector - 2 x 20 holes |
1146 | ||
1147 | astep = 20.00096874/19.; | |
1148 | ||
1149 | alpha = 10.00048437-astep; | |
1150 | ||
1151 | Float_t x1,x2; | |
1152 | ||
1153 | x1 = 13.31175725; | |
1154 | x1 -= 0.996357832; | |
1155 | ||
1156 | x2 = 15.06180253; | |
1157 | x2 -= 1.163028812; | |
1158 | ||
1159 | Int_t ncon; | |
1160 | ||
1161 | for(ncon=0;ncon<20;ncon++){ | |
1162 | ||
1163 | phi1 = 0.; | |
1164 | theta1 = 90.+alpha; | |
1165 | phi2=90.; | |
1166 | theta2 = 90.; | |
1167 | phi3 = (alpha>0) ? 0. : 180.; | |
1168 | theta3 = TMath::Abs(alpha); | |
1169 | ||
1170 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1171 | ||
1172 | ||
1173 | ||
1174 | gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY"); | |
1175 | gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY"); | |
1176 | ||
1177 | ||
1178 | x1 -= 1.296357833; | |
1179 | x2 -= 1.463028812; | |
1180 | ||
1181 | alpha -= astep; | |
1182 | nRotMat++; | |
1183 | ||
1184 | } | |
1185 | ||
1186 | // outer part of the inner sector - 2 x 25 holes | |
1187 | ||
1188 | astep = 20.00096874/24.; | |
1189 | alpha = 10.00048437-astep; | |
1190 | ||
1191 | x1 = 16.81184781; | |
1192 | x1 -= 1.016295986; | |
1193 | ||
1194 | x2 = 18.5618931; | |
1195 | x2 -= 1.150914854; | |
1196 | ||
1197 | for(ncon=0;ncon<25;ncon++){ | |
1198 | ||
1199 | phi1 = 0.; | |
1200 | theta1 = 90.+alpha; | |
1201 | phi2=90.; | |
1202 | theta2 = 90.; | |
1203 | phi3 = (alpha>0) ? 0. : 180.; | |
1204 | theta3 = TMath::Abs(alpha); | |
1205 | ||
1206 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1207 | ||
1208 | ||
1209 | ||
1210 | gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY"); | |
1211 | gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY"); | |
1212 | ||
1213 | ||
1214 | x1 -= 1.316295986; | |
1215 | x2 -= 1.450914854; | |
1216 | ||
1217 | alpha -= astep; | |
1218 | nRotMat++; | |
1219 | ||
1220 | } | |
1221 | ||
1222 | //-------------------------------------------------------------------------- | |
1223 | // TPC Outer Readout Chambers | |
1224 | // this is NOT a final design | |
1225 | //-------------------------------------------------------------------------- | |
1226 | ||
1227 | dm[0]= 23.3875; | |
1228 | dm[1]= 43.524; | |
1229 | dm[2]= 1.5; //thickness | |
1230 | dm[3]= 57.1; | |
1231 | ||
1232 | gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4); | |
1233 | ||
1234 | //------------------------------------------------ | |
1235 | // Tpc Outer readout chamber Pad Plane | |
1236 | //------------------------------------------------ | |
1237 | ||
1238 | dm[2]= 0.5; | |
1239 | ||
1240 | gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4); | |
1241 | ||
1242 | dm[0] -= 1.218511934; | |
1243 | dm[1] -= 1.218511934; | |
1244 | dm[2] = 0.35; | |
1245 | ||
1246 | gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4); | |
1247 | ||
1248 | gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY"); | |
1249 | ||
1250 | gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY"); | |
1251 | ||
1252 | // empty space | |
1253 | ||
37831078 | 1254 | dm[0]= 21.035; |
1255 | dm[1]= 38.7205; | |
1256 | dm[2]= 0.7; | |
1257 | dm[3]= 50.15; | |
1258 | ||
1259 | gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4); | |
1260 | ||
1261 | dm[0]= 22.2935; | |
1262 | dm[1]= 40.5085; | |
1263 | dm[2]= 2.25; | |
1264 | dm[3]= 51.65; | |
1265 | ||
1266 | gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4); | |
1267 | ||
1268 | dm[0]= 21.35; | |
1269 | dm[1]= 38.7205; | |
1270 | dm[2]= 2.25; | |
1271 | dm[3]= 50.15; | |
1272 | ||
79575d04 | 1273 | gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4); |
37831078 | 1274 | |
1275 | //----------------------------------------------- | |
1276 | // Tpc Services Support Wheel | |
1277 | //----------------------------------------------- | |
1278 | ||
1279 | dm[0]=0.; | |
1280 | dm[1]=360.; | |
1281 | dm[2]=18.; | |
1282 | dm[3]=2.; | |
1283 | ||
1284 | dm[4]= -5.; | |
1285 | dm[5]= 77.017; | |
1286 | dm[6]= 255.267; | |
1287 | ||
1288 | dm[7]= 5.; | |
1289 | dm[8]= dm[5]; | |
1290 | dm[9]= dm[6]; | |
1291 | ||
1292 | gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10); | |
1293 | ||
1294 | // Tpc Services Wheel Cover | |
1295 | ||
1296 | dm[4]= -0.5; | |
1297 | dm[7]= 0.5; | |
1298 | ||
1299 | gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10); | |
1300 | ||
1301 | // Tpc Service wheel Cover Empty space | |
1302 | ||
1303 | dm[0]= 10.99; | |
1304 | dm[1]= 39.599; | |
1305 | dm[2]= .5; | |
1306 | dm[3]= 81.125; | |
1307 | ||
1308 | gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4); | |
1309 | ||
1310 | // Tpc services Wheel Empty Spaces | |
1311 | ||
1312 | dm[0]= 13.18017507; | |
1313 | dm[1]= 44.61045938; | |
1314 | dm[2]= 4.; | |
1315 | dm[3]= 89.125; | |
1316 | ||
1317 | gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4); | |
1318 | ||
1319 | // Tpc Services Wheel Bars | |
1320 | ||
1321 | gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0); | |
1322 | ||
1323 | // bars-> TWES | |
1324 | ||
1325 | dm[2]= 4.; | |
1326 | dm[3]= .4; | |
1327 | ||
1328 | dm[0]= 13.8149522; | |
1329 | dm[1]= 13.95601379; | |
1330 | ||
1331 | gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4); | |
1332 | ||
1333 | dm[0]= 43.83462067; | |
1334 | dm[1]= 43.97568225; | |
1335 | ||
1336 | gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4); | |
1337 | ||
1338 | // TPc ELectronics - right now 30% X0 Si | |
1339 | ||
1340 | dm[0]= 14.03813696; | |
1341 | dm[1]= 43.3524075; | |
1342 | dm[2]= 1.404; | |
1343 | dm[3]= 83.125; | |
1344 | ||
1345 | gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4); | |
1346 | gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY"); | |
1347 | ||
1348 | //-------------------------------------------------------------------------- | |
1349 | // End caps | |
1350 | //-------------------------------------------------------------------------- | |
1351 | ||
1352 | // TPc Main Wheel - Al | |
1353 | ||
79575d04 | 1354 | dm[0]= 74.9; |
1355 | dm[1]= 264.4; | |
37831078 | 1356 | dm[2]= 3.0; |
1357 | ||
1358 | gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3); | |
1359 | ||
37831078 | 1360 | //-------------------------------------------------------------------------- |
1361 | // Tpc Empty Space for the Readout chambers | |
1362 | //-------------------------------------------------------------------------- | |
1363 | ||
1364 | Float_t rLow= 86.2; | |
1365 | Float_t rUp= 243.5; | |
1366 | Float_t dR = 0.5*(rUp-rLow); | |
1367 | ||
79575d04 | 1368 | space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide |
37831078 | 1369 | |
1370 | dm[0]= rLow*tanAlpha-space; | |
1371 | dm[1]= rUp*tanAlpha-space; | |
79575d04 | 1372 | dm[2] = 3.0; |
37831078 | 1373 | dm[3]= dR; |
1374 | ||
1375 | gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4); | |
1376 | ||
1377 | // TIC1->TESR | |
1378 | ||
37831078 | 1379 | gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY"); |
1380 | ||
37831078 | 1381 | // TOC1->TESR |
1382 | ||
1383 | gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY"); | |
1384 | ||
1385 | // Tpc Empty Space Bars - Al (daughters of TESR) | |
1386 | ||
1387 | Float_t zBar; | |
1388 | ||
1389 | gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0); | |
1390 | ||
1391 | // lower bar | |
1392 | ||
1393 | dm[0]= rLow*tanAlpha-space; | |
1394 | dm[1]= 88.7*tanAlpha-space; | |
79575d04 | 1395 | dm[2]= 2.25; |
37831078 | 1396 | dm[3]= 1.275; |
1397 | ||
1398 | zBar = -dR+dm[3]; | |
1399 | ||
79575d04 | 1400 | gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4); |
37831078 | 1401 | |
1402 | // middle bar | |
1403 | ||
1404 | dm[0]= 131.65*tanAlpha-space; | |
1405 | dm[1]= 136.5*tanAlpha-space; | |
1406 | dm[3]= 2.425; | |
1407 | ||
1408 | zBar = -dR +131.65+dm[3]-rLow; | |
1409 | ||
79575d04 | 1410 | gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4); |
37831078 | 1411 | |
1412 | // upper bar | |
1413 | ||
1414 | dm[0]= 240.4*tanAlpha-space; | |
1415 | dm[1]= rUp*tanAlpha-space; | |
1416 | dm[3]= 1.55; | |
1417 | ||
1418 | zBar = dR-dm[3]; | |
1419 | ||
79575d04 | 1420 | gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4); |
37831078 | 1421 | |
1422 | //------------------------------------------------------ | |
1423 | // TPc Lower "S" Sectors | |
1424 | //------------------------------------------------------ | |
1425 | ||
1426 | ||
1427 | Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow(); | |
1428 | Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp(); | |
1429 | ||
1430 | dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1431 | dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
79575d04 | 1432 | dm[2] = 0.5*(250. - 5.e-3); |
37831078 | 1433 | dm[3] = 0.5*(inSecUpEdge-inSecLowEdge); |
1434 | ||
1435 | gMC->Gsvolu("TPLS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1436 | ||
79575d04 | 1437 | |
37831078 | 1438 | //---------------------------------------------------------- |
1439 | // TPc Upper Sectors | |
1440 | //---------------------------------------------------------- | |
1441 | ||
1442 | Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow(); | |
1443 | Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp(); | |
1444 | ||
1445 | dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
1446 | dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
79575d04 | 1447 | dm[2] = 0.5*(250. - 5.e-3); |
37831078 | 1448 | dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge); |
1449 | ||
1450 | gMC->Gsvolu("TPUS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1451 | ||
1452 | ||
37831078 | 1453 | |
79575d04 | 1454 | // sensitive strips |
37831078 | 1455 | |
1456 | gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive | |
1457 | ||
1458 | Int_t nofStrips,nstr; | |
1459 | Float_t r1,r2,zs; | |
1460 | Float_t stripThick = 0.01; // 100 microns | |
1461 | Float_t deadSpace; | |
1462 | ||
1463 | // inner sector | |
1464 | ||
d4c354b9 | 1465 | |
1466 | // if all lower sectors selected define only 1 strip | |
1467 | ||
1468 | nofStrips=((fSecAL <0)||(fSecAL>=0 && fSens<0)) ? 1 : fTPCParam->GetNRowLow(); | |
37831078 | 1469 | deadSpace = fTPCParam->GetInnerWireMount(); |
1470 | ||
79575d04 | 1471 | dm[2] = 0.5*(250. - 5.e-3); |
1472 | dm[3] = 0.5 * stripThick; | |
d4c354b9 | 1473 | |
37831078 | 1474 | for(nstr=0;nstr<nofStrips;nstr++){ |
1475 | ||
1476 | r1 = fTPCParam->GetPadRowRadiiLow(nstr); | |
1477 | r2 = r1 + stripThick; | |
1478 | dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1479 | dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1480 | zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge); | |
1481 | zs += r1; | |
1482 | zs += dm[3]; | |
1483 | ||
1484 | gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1485 | ||
37831078 | 1486 | |
1487 | } | |
1488 | ||
d4c354b9 | 1489 | // strips only if several upper sectors selected end fSens > 0 |
1490 | ||
1491 | if(fSecAU >=0 && fSens >0){ | |
1492 | ||
37831078 | 1493 | Int_t nsSave = nofStrips; |
1494 | ||
1495 | // outer sector | |
1496 | ||
1497 | nofStrips = fTPCParam->GetNRowUp(); | |
1498 | deadSpace = fTPCParam->GetOuterWireMount(); | |
1499 | ||
79575d04 | 1500 | dm[2] = 0.5*(250. - 5.e-3); |
37831078 | 1501 | dm[3] = 0.5 * stripThick; |
d4c354b9 | 1502 | |
37831078 | 1503 | |
1504 | for(nstr=0;nstr<nofStrips;nstr++){ | |
1505 | ||
1506 | r1 = fTPCParam->GetPadRowRadiiUp(nstr); | |
1507 | r2 = r1 + stripThick; | |
1508 | dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1509 | dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1510 | zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge); | |
1511 | zs += r1; | |
1512 | zs += dm[3]; | |
1513 | ||
1514 | gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1515 | ||
1516 | } | |
79575d04 | 1517 | } |
1518 | ||
37831078 | 1519 | |
1520 | //------------------------------------------------------- | |
1521 | // positioning of the empty spaces into the main wheel | |
1522 | // and readout chambers and sectors into the drift gas | |
1523 | //------------------------------------------------------- | |
1524 | ||
1525 | Float_t rCenter,xc,yc; | |
1526 | Float_t rInner,rOuter; // center of the inner and outer chamber | |
1527 | ||
1528 | rCenter = rLow+dR; | |
1529 | ||
1530 | rInner = 108.07; | |
1531 | rOuter = 190.68; | |
1532 | ||
79575d04 | 1533 | |
37831078 | 1534 | for(Int_t ns=0; ns<nInnerSector;ns++){ |
1535 | ||
1536 | phi1 = ns * innerOpenAngle + innerAngleShift; | |
1537 | phi1 *= kRaddeg; // in degrees | |
1538 | ||
1539 | phi1 = (Float_t)TMath::Nint(phi1) + 270.; | |
1540 | ||
1541 | if (phi1 > 360.) phi1 -= 360.; | |
1542 | ||
1543 | theta1 = 90.; | |
1544 | phi2 = 90.; | |
1545 | theta2 = 180.; | |
1546 | phi3 = ns * innerOpenAngle + innerAngleShift; | |
1547 | phi3 *= kRaddeg; // in degrees | |
1548 | ||
1549 | phi3 = (Float_t)TMath::Nint(phi3); | |
1550 | ||
1551 | if(phi3 > 360.) phi3 -= 360.; | |
1552 | ||
1553 | theta3 = 90.; | |
1554 | ||
1555 | // "holes"->End plate | |
1556 | ||
1557 | xc = rCenter*TMath::Cos(phi3*kDegrad); | |
1558 | yc = rCenter*TMath::Sin(phi3*kDegrad); | |
1559 | ||
1560 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1561 | ||
1562 | gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1563 | ||
1564 | // TSCE->TSWC (services wheel volumes) | |
1565 | ||
1566 | xc = 166.142*TMath::Cos(phi3*kDegrad); | |
1567 | yc = 166.142*TMath::Sin(phi3*kDegrad); | |
1568 | ||
1569 | gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1570 | gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1571 | ||
79575d04 | 1572 | |
37831078 | 1573 | // readout chambers->TDGN (drift gas) |
1574 | ||
1575 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1576 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1577 | ||
1578 | gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY"); | |
1579 | ||
1580 | // here lower sectors | |
1581 | ||
1582 | if(fSecAL <0){ | |
1583 | ||
1584 | // all lower sectors are positioned | |
1585 | ||
79575d04 | 1586 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1587 | gMC-> |
79575d04 | 1588 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1589 | } |
1590 | else{ | |
1591 | ||
1592 | // only selected sectors are positioned (up to 6 sectors) | |
1593 | ||
1594 | for(Int_t sel=0;sel<6;sel++){ | |
1595 | ||
1596 | if(fSecLows[sel] == ns){ | |
79575d04 | 1597 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1598 | } |
1599 | else if(fSecLows[sel] == ns+nInnerSector){ | |
1600 | gMC-> | |
79575d04 | 1601 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1602 | } |
1603 | } | |
1604 | } // lower sectors finished | |
79575d04 | 1605 | |
1606 | ||
37831078 | 1607 | xc = rOuter*TMath::Cos(phi3*kDegrad); |
1608 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1609 | ||
1610 | gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY"); | |
1611 | ||
1612 | // here upper sectors | |
1613 | ||
1614 | if(fSecAU <0){ | |
1615 | ||
1616 | // all upper sectors | |
1617 | ||
79575d04 | 1618 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1619 | gMC-> |
79575d04 | 1620 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1621 | } |
1622 | else{ | |
1623 | ||
1624 | // only selected sectors (up to 12) | |
1625 | ||
1626 | for(Int_t sel=0;sel<12;sel++){ | |
1627 | if(fSecUps[sel] == ns+2*nInnerSector){ | |
79575d04 | 1628 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1629 | } |
1630 | else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){ | |
1631 | gMC-> | |
79575d04 | 1632 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY"); |
37831078 | 1633 | } |
1634 | } | |
1635 | } // upper sectors finished | |
1636 | ||
79575d04 | 1637 | |
37831078 | 1638 | nRotMat++; |
1639 | ||
79575d04 | 1640 | theta2 = 0.; // reflection |
37831078 | 1641 | |
1642 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1643 | ||
1644 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1645 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1646 | ||
1647 | gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY"); | |
1648 | ||
1649 | xc = rOuter*TMath::Cos(phi3*kDegrad); | |
1650 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1651 | ||
1652 | gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY"); | |
1653 | ||
1654 | nRotMat++; | |
1655 | ||
37831078 | 1656 | } |
37831078 | 1657 | // TPMW->TPC |
1658 | ||
1659 | gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY"); | |
79575d04 | 1660 | gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY"); |
37831078 | 1661 | |
79575d04 | 1662 | //--------------------------------------------------------- |
1663 | // Tpc High Voltage Membrane - 100 microns of mylar | |
1664 | //--------------------------------------------------------- | |
37831078 | 1665 | |
79575d04 | 1666 | dm[0]=82.8; |
1667 | dm[1]=252.; | |
1668 | dm[2]=0.005; | |
37831078 | 1669 | |
79575d04 | 1670 | gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3); |
37831078 | 1671 | |
79575d04 | 1672 | gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY"); |
37831078 | 1673 | |
79575d04 | 1674 | // Tpc High Voltage membrane Holders |
37831078 | 1675 | |
79575d04 | 1676 | gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0); |
37831078 | 1677 | |
79575d04 | 1678 | |
37831078 | 1679 | |
79575d04 | 1680 | // inner |
37831078 | 1681 | |
79575d04 | 1682 | dm[0]=79.3; |
1683 | dm[1]=82.8; | |
1684 | dm[2]=0.2; | |
37831078 | 1685 | |
79575d04 | 1686 | gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3); |
1687 | ||
1688 | // outer | |
1689 | ||
1690 | dm[0]= 252.; | |
1691 | dm[1]= 257.9; | |
1692 | dm[2]= 0.4; | |
1693 | ||
1694 | gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3); | |
37831078 | 1695 | |
1696 | //---------------------------------------------------------- | |
1697 | // TPc Support Rods - MAKROLON | |
1698 | //---------------------------------------------------------- | |
1699 | ||
1700 | dm[0]= 0.9; | |
1701 | dm[1]= 1.2; | |
37831078 | 1702 | |
79575d04 | 1703 | gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ |
37831078 | 1704 | |
79575d04 | 1705 | |
1706 | for(Int_t nrod=0;nrod<18;nrod++){ | |
37831078 | 1707 | Float_t angle=innerOpenAngle*(Float_t)nrod; |
1708 | ||
79575d04 | 1709 | xc=81.5*TMath::Cos(angle); |
1710 | yc=81.5*TMath::Sin(angle); | |
1711 | ||
1712 | dm[2]=126.7; | |
37831078 | 1713 | |
79575d04 | 1714 | gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3); |
1715 | gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3); | |
37831078 | 1716 | |
79575d04 | 1717 | dm[2]=126.6; |
37831078 | 1718 | |
79575d04 | 1719 | xc=254.25*TMath::Cos(angle); |
1720 | yc=254.25*TMath::Sin(angle); | |
1721 | ||
1722 | // rod number 54 contans the HV cable | |
37831078 | 1723 | |
79575d04 | 1724 | if(nrod<17) { |
1725 | gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3); | |
1726 | gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3); | |
1727 | } | |
1728 | ||
37831078 | 1729 | } |
1730 | ||
1731 | //---------------------------------------------------------- | |
79575d04 | 1732 | // Tpc High Voltage Rod - MAKROLON + Copper cable |
37831078 | 1733 | //---------------------------------------------------------- |
1734 | ||
1735 | // rod with cable (Left) | |
1736 | ||
1737 | dm[0]=0.; | |
1738 | dm[1]=2.25; | |
79575d04 | 1739 | dm[2]=126.6; |
37831078 | 1740 | |
1741 | gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3); | |
1742 | ||
1743 | // HV cable | |
1744 | ||
1745 | dm[0]=0.; | |
1746 | dm[1]=0.3; | |
79575d04 | 1747 | dm[2]=126.6; |
37831078 | 1748 | |
79575d04 | 1749 | gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3); |
37831078 | 1750 | |
1751 | // empty space | |
1752 | ||
1753 | dm[0]=0.3; | |
1754 | dm[1]=1.; | |
79575d04 | 1755 | dm[2]=126.6; |
37831078 | 1756 | |
1757 | gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3); | |
1758 | ||
1759 | gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1760 | gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1761 | ||
1762 | // rod without cable | |
1763 | ||
1764 | dm[0]=1.8; | |
1765 | dm[1]=2.25; | |
79575d04 | 1766 | dm[2]=126.6; |
37831078 | 1767 | |
1768 | gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3); | |
1769 | ||
79575d04 | 1770 | gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY"); |
1771 | gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY"); | |
37831078 | 1772 | |
1773 | gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
79575d04 | 1774 | |
37831078 | 1775 | // services wheel cover -> wheel |
1776 | ||
1777 | ||
1778 | gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY"); | |
1779 | gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY"); | |
1780 | ||
1781 | ||
1782 | // put the wheel into the TPC | |
1783 | ||
1784 | gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY"); | |
1785 | gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY"); | |
1786 | ||
79575d04 | 1787 | // |
1788 | ||
37831078 | 1789 | gMC->Gsord("TPMW",6); |
79575d04 | 1790 | gMC->Gsord("TSSW",6); |
1791 | gMC->Gsord("TSWC",6); | |
d4c354b9 | 1792 | if(fSecAL >=0) gMC->Gsord("TPLS",3); |
1793 | if(fSecAU >=0 && fSens >0) gMC->Gsord("TPUS",3); | |
37831078 | 1794 | gMC->Gsord("TDGN",6); |
37831078 | 1795 | |
1796 | // put the TPC into ALIC (main mother volume) | |
1797 | ||
79575d04 | 1798 | gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY"); |
1799 | ||
1800 | ||
37831078 | 1801 | |
1802 | } // end of function | |
1803 | ||
1804 | //_____________________________________________________________________________ | |
1805 | void AliTPCv2::DrawDetector() | |
1806 | { | |
1807 | // | |
1808 | // Draw a shaded view of the Time Projection Chamber version 1 | |
1809 | // | |
1810 | ||
1811 | // Set everything unseen | |
1812 | gMC->Gsatt("*", "seen", -1); | |
1813 | // | |
1814 | // Set ALIC mother transparent | |
1815 | gMC->Gsatt("ALIC","SEEN",0); | |
1816 | // | |
1817 | // Set the volumes visible | |
1818 | // | |
1819 | ||
1820 | gMC->Gsatt("TPC ","SEEN",0); | |
1821 | gMC->Gsatt("TOIN","SEEN",1); | |
1822 | gMC->Gsatt("TOIN","COLO",7); | |
37831078 | 1823 | gMC->Gsatt("TOCV","SEEN",1); |
1824 | gMC->Gsatt("TOCV","COLO",4); | |
1825 | gMC->Gsatt("TSA1","SEEN",0); | |
1826 | gMC->Gsatt("TSA2","SEEN",0); | |
1827 | gMC->Gsatt("TSA3","SEEN",0); | |
79575d04 | 1828 | gMC->Gsatt("TSA4","SEEN",0); |
1829 | gMC->Gsatt("TSA5","SEEN",0); | |
37831078 | 1830 | gMC->Gsatt("TOFC","SEEN",1); |
1831 | gMC->Gsatt("TOFC","COLO",4); | |
37831078 | 1832 | gMC->Gsatt("TSA6","SEEN",0); |
1833 | gMC->Gsatt("TSA7","SEEN",0); | |
79575d04 | 1834 | gMC->Gsatt("TSA8","SEEN",0); |
37831078 | 1835 | gMC->Gsatt("TIIN","SEEN",1); |
79575d04 | 1836 | gMC->Gsatt("TIIN","COLO",7); |
1837 | gMC->Gsatt("TII1","SEEN",0); | |
1838 | gMC->Gsatt("TIFC","SEEN",1); | |
1839 | gMC->Gsatt("TIFC","COLO",4); | |
1840 | gMC->Gsatt("TSA9","SEEN",0); | |
37831078 | 1841 | gMC->Gsatt("TS10","SEEN",0); |
1842 | gMC->Gsatt("TS11","SEEN",0); | |
1843 | gMC->Gsatt("TS12","SEEN",0); | |
37831078 | 1844 | gMC->Gsatt("TS13","SEEN",0); |
1845 | gMC->Gsatt("TS14","SEEN",0); | |
79575d04 | 1846 | gMC->Gsatt("TICC","SEEN",0); |
1847 | gMC->Gsatt("TICM","SEEN",0); | |
37831078 | 1848 | gMC->Gsatt("TS15","SEEN",0); |
1849 | gMC->Gsatt("TS16","SEEN",0); | |
37831078 | 1850 | gMC->Gsatt("TS17","SEEN",0); |
79575d04 | 1851 | gMC->Gsatt("TS18","SEEN",0); |
1852 | gMC->Gsatt("TS19","SEEN",0); | |
1853 | gMC->Gsatt("TPJ1","SEEN",0); | |
1854 | gMC->Gsatt("TPJ2","SEEN",0); | |
1855 | gMC->Gsatt("TICS","SEEN",0); | |
1856 | gMC->Gsatt("TDGN","SEEN",0); | |
37831078 | 1857 | gMC->Gsatt("TIRC","SEEN",0); |
1858 | gMC->Gsatt("TIC1","SEEN",1); | |
1859 | gMC->Gsatt("TIPP","SEEN",0); | |
1860 | gMC->Gsatt("TIC3","SEEN",0); | |
1861 | gMC->Gsatt("TRCE","SEEN",0); | |
1862 | gMC->Gsatt("TPSC","SEEN",0); | |
79575d04 | 1863 | gMC->Gsatt("TPCC","SEEN",0); |
37831078 | 1864 | gMC->Gsatt("TORC","SEEN",0); |
1865 | gMC->Gsatt("TOPP","SEEN",0); | |
1866 | gMC->Gsatt("TOC3","SEEN",0); | |
1867 | gMC->Gsatt("TOC1","SEEN",1); | |
1868 | gMC->Gsatt("TSSW","SEEN",1); | |
1869 | gMC->Gsatt("TSWC","SEEN",1); | |
37831078 | 1870 | gMC->Gsatt("TSSW","COLO",3); |
1871 | gMC->Gsatt("TSWC","COLO",3); | |
1872 | gMC->Gsatt("TSCE","COLO",6); | |
79575d04 | 1873 | gMC->Gsatt("TSCE","SEEN",1); |
37831078 | 1874 | gMC->Gsatt("TWES","SEEN",0); |
1875 | gMC->Gsatt("TSWB","SEEN",0); | |
1876 | gMC->Gsatt("TPEL","SEEN",0); | |
1877 | gMC->Gsatt("TPMW","SEEN",1); | |
37831078 | 1878 | gMC->Gsatt("TESR","SEEN",1); |
1879 | gMC->Gsatt("TPMW","COLO",12); | |
37831078 | 1880 | gMC->Gsatt("TIC1","COLO",5); |
79575d04 | 1881 | gMC->Gsatt("TOC1","COLO",5); |
37831078 | 1882 | gMC->Gsatt("TESB","SEEN",0); |
37831078 | 1883 | gMC->Gsatt("THVM","SEEN",1); |
1884 | gMC->Gsatt("THVM","COLO",11); | |
79575d04 | 1885 | gMC->Gsatt("THVH","SEEN",0); |
1886 | gMC->Gsatt("TPSR","SEEN",0); | |
37831078 | 1887 | gMC->Gsatt("THVL","SEEN",0); |
79575d04 | 1888 | gMC->Gsatt("THVC","SEEN",0); |
37831078 | 1889 | gMC->Gsatt("THVE","SEEN",0); |
1890 | gMC->Gsatt("THVR","SEEN",0); | |
79575d04 | 1891 | gMC->Gsatt("TPSS","SEEN",0); |
1892 | gMC->Gsatt("TPUS","SEEN",0); | |
1893 | gMC->Gsatt("TPLS","SEEN",0); | |
37831078 | 1894 | |
1895 | // | |
1896 | gMC->Gdopt("hide", "on"); | |
1897 | gMC->Gdopt("shad", "on"); | |
1898 | gMC->Gsatt("*", "fill", 7); | |
1899 | gMC->SetClipBox("."); | |
1900 | gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.); | |
1901 | gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.); | |
1902 | gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.); | |
1903 | gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.); | |
1904 | gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290); | |
1905 | gMC->DefaultRange(); | |
1906 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
1907 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
1908 | gMC->Gdman(18, 4, "MAN"); | |
1909 | gMC->Gdopt("hide","off"); | |
1910 | } | |
1911 | ||
1912 | //_____________________________________________________________________________ | |
1913 | void AliTPCv2::CreateMaterials() | |
1914 | { | |
1915 | // | |
1916 | // Define materials for version 2 of the Time Projection Chamber | |
1917 | // | |
1918 | ||
1919 | AliTPC::CreateMaterials(); | |
1920 | } | |
1921 | ||
1922 | //_____________________________________________________________________________ | |
1923 | void AliTPCv2::Init() | |
1924 | { | |
1925 | // | |
1926 | // Initialises version 2 of the TPC after that it has been built | |
1927 | // | |
1928 | ||
1929 | Int_t *idtmed = fIdtmed->GetArray(); | |
1930 | ||
1931 | AliTPC::Init(); | |
d4c354b9 | 1932 | |
1933 | ||
1934 | ||
1935 | fIdSens=gMC->VolId("TPSS"); | |
1936 | ||
1937 | fIdLSec=gMC->VolId("TPLS"); // lower sector | |
37831078 | 1938 | fIdUSec=gMC->VolId("TPUS"); // upper sector |
1939 | ||
1940 | gMC->SetMaxNStep(30000); // max. number of steps increased | |
1941 | ||
1942 | gMC->Gstpar(idtmed[2],"LOSS",5); // specific energy loss | |
1943 | ||
9e1a0ddb | 1944 | printf("%s: *** TPC version 2 initialized ***\n",ClassName()); |
1945 | printf("%s: Maximum number of steps = %d\n",ClassName(),gMC->GetMaxNStep()); | |
37831078 | 1946 | |
1947 | // | |
fe4da5cc | 1948 | |
1949 | } | |
1950 | ||
1951 | //_____________________________________________________________________________ | |
1952 | void AliTPCv2::StepManager() | |
1953 | { | |
1954 | // | |
1955 | // Called for every step in the Time Projection Chamber | |
1956 | // | |
1957 | ||
1958 | // | |
1959 | // parameters used for the energy loss calculations | |
1960 | // | |
73042f01 | 1961 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
1962 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
1963 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
fe4da5cc | 1964 | |
1965 | ||
73042f01 | 1966 | const Float_t kbig = 1.e10; |
fe4da5cc | 1967 | |
1968 | Int_t id,copy; | |
1969 | Float_t hits[4]; | |
1970 | Int_t vol[2]; | |
37831078 | 1971 | TLorentzVector p; |
fe4da5cc | 1972 | |
37831078 | 1973 | vol[1]=0; // preset row number to 0 |
fe4da5cc | 1974 | |
1975 | // | |
1976 | ||
73042f01 | 1977 | gMC->SetMaxStep(kbig); |
fe4da5cc | 1978 | |
0a6d8768 | 1979 | if(!gMC->IsTrackAlive()) return; // particle has disappeared |
fe4da5cc | 1980 | |
cfce8870 | 1981 | Float_t charge = gMC->TrackCharge(); |
fe4da5cc | 1982 | |
1983 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
1984 | ||
37831078 | 1985 | // check the sensitive volume |
1986 | ||
1987 | id = gMC->CurrentVolID(copy); // current volume Id | |
1988 | ||
2d74ba4f | 1989 | if ( (gMC->IsTrackEntering() || gMC->IsTrackExiting()) && |
1990 | ((id == fIdLSec) || (id == fIdUSec)) ) { | |
da33556f | 1991 | |
a01ca9f6 | 1992 | AddTrackReference(gAlice->CurrentTrack()); |
da33556f | 1993 | } |
1994 | ||
37831078 | 1995 | if(id == fIdLSec){ |
1996 | vol[0] = copy-1; // lower sector number | |
1997 | } | |
1998 | else if(id == fIdUSec){ | |
1999 | vol[0] = copy+fTPCParam->GetNInnerSector()-1; // upper sector number | |
2000 | } | |
2001 | else if(id == fIdSens && gMC->IsTrackEntering()){ | |
2002 | ||
2003 | // track is entering the sensitive strip | |
2004 | ||
2005 | vol[1]= copy-1; // row number (absolute) | |
2006 | ||
2007 | // sector type | |
2008 | ||
2009 | id = gMC->CurrentVolOffID(1,copy); | |
2010 | ||
2011 | if(id == fIdLSec){ | |
2012 | ||
2013 | // lower sector | |
2014 | ||
2015 | vol[0] = copy-1; // sector number | |
2016 | ||
fe4da5cc | 2017 | } |
37831078 | 2018 | else { |
2019 | ||
2020 | // upper sector | |
2021 | ||
2022 | vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number | |
6a905708 | 2023 | vol[1] -= fTPCParam->GetNRowLow(); // row number (starts also from 0) |
37831078 | 2024 | |
2025 | } | |
2026 | ||
2027 | if(vol[1] == 0){ | |
2028 | ||
2029 | // because Jouri wants to have this | |
2030 | ||
2031 | gMC->TrackMomentum(p); | |
2032 | hits[0]=p[0]; | |
2033 | hits[1]=p[1]; | |
2034 | hits[2]=p[2]; | |
fe4da5cc | 2035 | hits[3]=0.; // this hit has no energy loss |
6a905708 | 2036 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2037 | ||
2038 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
37831078 | 2039 | |
930ee558 | 2040 | } |
37831078 | 2041 | |
930ee558 | 2042 | gMC->TrackPosition(p); |
2043 | hits[0]=p[0]; | |
2044 | hits[1]=p[1]; | |
2045 | hits[2]=p[2]; | |
2046 | hits[3]=0.; // this hit has no energy loss | |
6a905708 | 2047 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2048 | ||
2049 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
930ee558 | 2050 | |
37831078 | 2051 | } |
fe4da5cc | 2052 | else return; |
37831078 | 2053 | |
2054 | //----------------------------------------------------------------- | |
fe4da5cc | 2055 | // charged particle is in the sensitive volume |
37831078 | 2056 | //----------------------------------------------------------------- |
fe4da5cc | 2057 | |
cfce8870 | 2058 | if(gMC->TrackStep() > 0) { |
fe4da5cc | 2059 | |
73042f01 | 2060 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
fe4da5cc | 2061 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
2062 | ||
37831078 | 2063 | gMC->TrackPosition(p); |
2064 | hits[0]=p[0]; | |
2065 | hits[1]=p[1]; | |
2066 | hits[2]=p[2]; | |
fe4da5cc | 2067 | hits[3]=(Float_t)nel; |
2068 | ||
2069 | // Add this hit | |
2070 | ||
6a905708 | 2071 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2072 | if (fHitType&&2){ | |
2073 | gMC->TrackMomentum(p); | |
2074 | Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
2075 | Float_t precision = (momentum>0.1) ? 0.002 :0.01; | |
2076 | fTrackHits->SetHitPrecision(precision); | |
2077 | } | |
2078 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
fe4da5cc | 2079 | |
2080 | } | |
2081 | ||
2082 | // Stemax calculation for the next step | |
2083 | ||
2084 | Float_t pp; | |
0a6d8768 | 2085 | TLorentzVector mom; |
2086 | gMC->TrackMomentum(mom); | |
2087 | Float_t ptot=mom.Rho(); | |
73042f01 | 2088 | Float_t betaGamma = ptot/gMC->TrackMass(); |
fe4da5cc | 2089 | |
69e40cce | 2090 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 2091 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
fe4da5cc | 2092 | { |
73042f01 | 2093 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
fe4da5cc | 2094 | } |
2095 | else | |
2096 | { | |
595bf2c3 | 2097 | |
07521998 | 2098 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg |
595bf2c3 | 2099 | pp=kprim*BetheBloch(betaGamma); |
2100 | ||
fe4da5cc | 2101 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
2102 | } | |
2103 | ||
b9d0a01d | 2104 | Double_t rnd = gMC->GetRandom()->Rndm(); |
fe4da5cc | 2105 | |
cfce8870 | 2106 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); |
fe4da5cc | 2107 | |
2108 | } | |
2109 | ||
2110 | //_____________________________________________________________________________ | |
2111 | Float_t AliTPCv2::BetheBloch(Float_t bg) | |
2112 | { | |
2113 | // | |
2114 | // Bethe-Bloch energy loss formula | |
2115 | // | |
73042f01 | 2116 | const Double_t kp1=0.76176e-1; |
2117 | const Double_t kp2=10.632; | |
2118 | const Double_t kp3=0.13279e-4; | |
2119 | const Double_t kp4=1.8631; | |
2120 | const Double_t kp5=1.9479; | |
fe4da5cc | 2121 | |
2122 | Double_t dbg = (Double_t) bg; | |
2123 | ||
2124 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
2125 | ||
73042f01 | 2126 | Double_t aa = TMath::Power(beta,kp4); |
2127 | Double_t bb = TMath::Power(1./dbg,kp5); | |
fe4da5cc | 2128 | |
73042f01 | 2129 | bb=TMath::Log(kp3+bb); |
fe4da5cc | 2130 | |
73042f01 | 2131 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); |
fe4da5cc | 2132 | } |
73042f01 | 2133 | |
2134 |