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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 | $Log$ | |
7ab50f40 | 18 | Revision 1.31 2000/11/30 11:48:50 kowal2 |
19 | TLorentzVector.h adde to satisfy the latest changes by Federico | |
20 | ||
a383b30d | 21 | Revision 1.30 2000/11/14 10:48:57 kowal2 |
22 | Correct material used for TSA4. Thanks to J. Barbosa. | |
23 | ||
2c668420 | 24 | Revision 1.29 2000/11/06 17:24:10 kowal2 |
25 | Corrected bug in the outer containment vessel and | |
26 | the outer field cage geometry. | |
27 | Thanks to J. Barbosa. | |
28 | ||
720b23b8 | 29 | Revision 1.28 2000/11/02 16:55:24 kowal2 |
30 | Corrected bug in the inner containment vessel geometry. | |
31 | Thanks to J. Belikov | |
32 | ||
08db548a | 33 | Revision 1.27 2000/11/02 07:24:11 kowal2 |
34 | Correction in the TPC geometry. | |
35 | Changes due to the new hit structure. | |
36 | ||
6a905708 | 37 | Revision 1.26 2000/10/05 16:16:29 kowal2 |
38 | Corrections of the hit recording algorithm. | |
39 | ||
d4c354b9 | 40 | Revision 1.25 2000/10/02 21:28:18 fca |
41 | Removal of useless dependecies via forward declarations | |
42 | ||
94de3818 | 43 | Revision 1.24 2000/08/28 10:02:30 kowal2 |
44 | Corrected bug in the StepManager | |
45 | ||
930ee558 | 46 | Revision 1.23 2000/07/10 20:57:39 hristov |
47 | Update of TPC code and macros by M.Kowalski | |
48 | ||
37831078 | 49 | Revision 1.22 2000/06/30 12:07:50 kowal2 |
50 | Updated from the TPC-PreRelease branch | |
51 | ||
73042f01 | 52 | Revision 1.21.2.4 2000/06/26 07:39:42 kowal2 |
53 | Changes to obey the coding rules | |
54 | ||
55 | Revision 1.21.2.3 2000/06/25 08:38:41 kowal2 | |
56 | Splitted from AliTPCtracking | |
57 | ||
58 | Revision 1.21.2.2 2000/06/16 12:58:13 kowal2 | |
59 | Changed parameter settings | |
60 | ||
61 | Revision 1.21.2.1 2000/06/09 07:15:07 kowal2 | |
62 | ||
63 | Defaults loaded automatically (hard-wired) | |
64 | Optional parameters can be set via macro called in the constructor | |
65 | ||
66 | Revision 1.21 2000/05/15 10:00:30 kowal2 | |
67 | Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova | |
68 | ||
e94dd9ca | 69 | Revision 1.20 2000/04/17 09:37:33 kowal2 |
70 | removed obsolete AliTPCDigitsDisplay.C | |
71 | ||
cc80f89e | 72 | Revision 1.19.8.2 2000/04/10 08:31:52 kowal2 |
73 | ||
74 | Different geometry for different sectors | |
75 | Updated readout chambers | |
76 | Some modifications to StepManager by J.Belikov | |
77 | ||
78 | Revision 1.19.8.1 2000/04/10 07:56:53 kowal2 | |
79 | Not used anymore - removed | |
80 | ||
81 | Revision 1.19 1999/11/04 17:28:07 fca | |
82 | Correct barrel part of HV Degrader | |
83 | ||
a5371c42 | 84 | Revision 1.18 1999/10/14 16:52:08 fca |
85 | Only use PDG codes and not GEANT ones | |
86 | ||
69e40cce | 87 | Revision 1.17 1999/10/08 06:27:23 fca |
88 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
89 | ||
d183a600 | 90 | Revision 1.16 1999/10/04 13:39:54 fca |
91 | Correct array index problem | |
92 | ||
cdde5b1e | 93 | Revision 1.15 1999/09/29 09:24:34 fca |
94 | Introduction of the Copyright and cvs Log | |
95 | ||
4c039060 | 96 | */ |
97 | ||
73042f01 | 98 | // |
fe4da5cc | 99 | /////////////////////////////////////////////////////////////////////////////// |
100 | // // | |
101 | // Time Projection Chamber version 2 -- detailed TPC and slow simulation // | |
102 | // // | |
103 | //Begin_Html | |
104 | /* | |
1439f98e | 105 | <img src="picts/AliTPCv2Class.gif"> |
fe4da5cc | 106 | */ |
107 | //End_Html | |
108 | // // | |
109 | // // | |
110 | /////////////////////////////////////////////////////////////////////////////// | |
2a49965d | 111 | #include <stdlib.h> |
fe4da5cc | 112 | |
113 | #include <TMath.h> | |
bcac8ae4 | 114 | |
fe4da5cc | 115 | #include "AliTPCv2.h" |
cc80f89e | 116 | #include "AliTPCDigitsArray.h" |
fe4da5cc | 117 | #include "AliRun.h" |
94de3818 | 118 | #include "AliMC.h" |
fe4da5cc | 119 | #include "AliConst.h" |
69e40cce | 120 | #include "AliPDG.h" |
73042f01 | 121 | #include "AliTPCParam.h" |
122 | #include "AliTPCParamSR.h" | |
6a905708 | 123 | #include "AliTPCTrackHits.h" |
a383b30d | 124 | #include "TLorentzVector.h" |
6a905708 | 125 | |
8c555625 | 126 | |
fe4da5cc | 127 | ClassImp(AliTPCv2) |
128 | ||
129 | //_____________________________________________________________________________ | |
130 | AliTPCv2::AliTPCv2(const char *name, const char *title) : | |
131 | AliTPC(name, title) | |
132 | { | |
133 | // | |
134 | // Standard constructor for Time Projection Chamber version 2 | |
135 | // | |
37831078 | 136 | fIdSens=0; |
137 | fIdLSec=0; | |
138 | fIdUSec=0; | |
139 | ||
fe4da5cc | 140 | SetBufferSize(128000); |
73042f01 | 141 | |
142 | SetGasMixt(2,20,10,-1,0.9,0.1,0.); // Ne-CO2 90-10 | |
143 | ||
144 | // Default sectors | |
145 | ||
146 | SetSecAL(4); | |
147 | SetSecAU(4); | |
148 | SetSecLows(1, 2, 3, 19, 20, 21); | |
149 | SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1); | |
37831078 | 150 | SetSens(1); // sensitive strips set |
73042f01 | 151 | |
152 | if (fTPCParam) | |
153 | fTPCParam->Write(fTPCParam->GetTitle()); | |
fe4da5cc | 154 | } |
155 | ||
156 | //_____________________________________________________________________________ | |
157 | void AliTPCv2::CreateGeometry() | |
158 | { | |
159 | // | |
160 | // Create the geometry of Time Projection Chamber version 2 | |
161 | // | |
162 | //Begin_Html | |
163 | /* | |
37831078 | 164 | <img src="picts/AliTPC.gif"> |
fe4da5cc | 165 | */ |
166 | //End_Html | |
167 | //Begin_Html | |
168 | /* | |
1439f98e | 169 | <img src="picts/AliTPCv2Tree.gif"> |
fe4da5cc | 170 | */ |
171 | //End_Html | |
172 | ||
8c555625 | 173 | |
1283eee5 | 174 | Int_t *idtmed = fIdtmed->GetArray(); |
175 | ||
37831078 | 176 | Float_t dm[50]; |
62a73ee5 | 177 | Int_t idrotm[120]; |
1283eee5 | 178 | |
179 | Int_t nRotMat = 0; | |
180 | ||
d4c354b9 | 181 | Int_t i,ifl1=0; |
1283eee5 | 182 | |
37831078 | 183 | // number of sectors |
184 | ||
1283eee5 | 185 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; |
186 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
fe4da5cc | 187 | |
188 | // --------------------------------------------------- | |
189 | // sector specification check | |
190 | // --------------------------------------------------- | |
191 | if (fSecAL >= 0) { | |
192 | ifl1 = 0; | |
193 | ||
194 | for (i = 0; i < 6; ++i) { | |
1283eee5 | 195 | if (fSecLows[i] >= 0 && fSecLows[i] < 2*nInnerSector) { |
fe4da5cc | 196 | ifl1 = 1; |
197 | printf("*** SECTOR %d selected\n",fSecLows[i]); | |
198 | } | |
199 | } | |
200 | ||
201 | } else { | |
202 | printf("*** ALL LOWER SECTORS SELECTED ***\n"); | |
8c555625 | 203 | ifl1 = 1; |
fe4da5cc | 204 | } |
205 | ||
d4c354b9 | 206 | if (ifl1 == 0) { |
207 | printf("*** ERROR: AT LEAST ONE LOWER SECTOR MUST BE SPECIFIED ***\n"); | |
208 | printf("!!! PROGRAM STOPPED !!!\n"); | |
209 | exit(1); | |
210 | } | |
211 | ||
fe4da5cc | 212 | if (fSecAU >= 0) { |
fe4da5cc | 213 | |
214 | for (i = 0; i < 12; ++i) { | |
1283eee5 | 215 | if (fSecUps[i] > 2*nInnerSector-1 && |
216 | fSecUps[i] < 2*(nInnerSector+nOuterSector)) { | |
fe4da5cc | 217 | printf("*** SECTOR %d selected\n",fSecUps[i]); |
218 | } | |
219 | } | |
220 | ||
221 | } else { | |
222 | printf("*** ALL UPPER SECTORS SELECTED ***\n"); | |
223 | } | |
224 | ||
d4c354b9 | 225 | |
37831078 | 226 | |
227 | //-------------------------------------------------------------------- | |
228 | ||
229 | // | |
230 | // Mother volume (Air) - all volumes will be positioned in it | |
231 | // | |
1283eee5 | 232 | |
37831078 | 233 | dm[0]=0.; |
234 | dm[1]=360.; | |
235 | dm[2]=12.; | |
1283eee5 | 236 | |
37831078 | 237 | // |
238 | ||
239 | dm[3]= -283.7; | |
240 | dm[4]= 66.2; | |
241 | dm[5]= 277.95; | |
1283eee5 | 242 | |
37831078 | 243 | // |
1283eee5 | 244 | |
37831078 | 245 | dm[6]= -255.6; |
246 | dm[7]= 66.2; | |
247 | dm[8]= 277.95; | |
1283eee5 | 248 | |
37831078 | 249 | // |
1283eee5 | 250 | |
37831078 | 251 | dm[9]= -73.3; |
252 | dm[10]= 59.0; | |
253 | dm[11]= 277.95; | |
1283eee5 | 254 | |
37831078 | 255 | // |
1283eee5 | 256 | |
37831078 | 257 | dm[12]= -73.3; |
258 | dm[13]= 56.9; | |
259 | dm[14]= 277.95; | |
1283eee5 | 260 | |
37831078 | 261 | // |
1283eee5 | 262 | |
37831078 | 263 | dm[15]= -72.1; |
264 | dm[16]= 56.9; | |
265 | dm[17]= 277.95; | |
1283eee5 | 266 | |
37831078 | 267 | // |
1283eee5 | 268 | |
37831078 | 269 | dm[18]= -72.1; |
270 | dm[19]= 60.65; | |
271 | dm[20]= 277.95; | |
1283eee5 | 272 | |
37831078 | 273 | // |
1283eee5 | 274 | |
37831078 | 275 | dm[21]= 72.1; |
276 | dm[22]= 60.65; | |
277 | dm[23]= 277.95; | |
1283eee5 | 278 | |
37831078 | 279 | // |
1283eee5 | 280 | |
37831078 | 281 | dm[24]= 72.1; |
282 | dm[25]= 56.9; | |
283 | dm[26]= 277.95; | |
1283eee5 | 284 | |
37831078 | 285 | // |
1283eee5 | 286 | |
37831078 | 287 | dm[27]= 73.3; |
288 | dm[28]= 56.9; | |
289 | dm[29]= 277.95; | |
1283eee5 | 290 | |
37831078 | 291 | // |
1283eee5 | 292 | |
37831078 | 293 | dm[30]= 73.3; |
7ab50f40 | 294 | dm[31]= 59.; |
37831078 | 295 | dm[32]= 277.95; |
1283eee5 | 296 | |
37831078 | 297 | // |
1283eee5 | 298 | |
37831078 | 299 | dm[33]= 250.4; |
300 | dm[34]= 66.0; | |
301 | dm[35]= 277.95; | |
1283eee5 | 302 | |
37831078 | 303 | // |
1283eee5 | 304 | |
37831078 | 305 | dm[36]= 283.7; |
306 | dm[37]= 66.0; | |
307 | dm[38]= 277.95; | |
1283eee5 | 308 | |
1283eee5 | 309 | |
37831078 | 310 | gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39); |
1283eee5 | 311 | |
1283eee5 | 312 | |
37831078 | 313 | //------------------------------------------------------------------- |
314 | // Tpc Outer INsulator (CO2) | |
315 | //------------------------------------------------------------------- | |
1283eee5 | 316 | |
37831078 | 317 | dm[0]= 0.; |
318 | dm[1]= 360.; | |
319 | dm[2]= 6.; | |
1283eee5 | 320 | |
37831078 | 321 | // |
322 | ||
323 | dm[3]= -253.6; | |
324 | dm[4]= 258.; | |
325 | dm[5]= 266.65; | |
1283eee5 | 326 | |
37831078 | 327 | // |
1283eee5 | 328 | |
37831078 | 329 | dm[6]= -253.; |
330 | dm[7]= 258.; | |
331 | dm[8]= 266.65; | |
1283eee5 | 332 | |
37831078 | 333 | dm[9]= -253.; |
334 | dm[10]= 258.; | |
335 | dm[11]= 277.97; | |
1283eee5 | 336 | |
37831078 | 337 | dm[12]= 253.6; |
338 | dm[13]= 258.; | |
339 | dm[14]= 277.97; | |
1283eee5 | 340 | |
37831078 | 341 | // |
1283eee5 | 342 | |
37831078 | 343 | dm[15]= 253.6; |
344 | dm[16]= 265.2; | |
345 | dm[17]= 277.95; | |
1283eee5 | 346 | |
37831078 | 347 | // |
cc80f89e | 348 | |
37831078 | 349 | dm[18]= 255.6; |
350 | dm[19]= 265.2; | |
351 | dm[20]= 277.95; | |
1283eee5 | 352 | |
1283eee5 | 353 | |
37831078 | 354 | gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21); |
1283eee5 | 355 | |
37831078 | 356 | //--------------------------------------------------------------- |
357 | // shreds (G10) - TPC Rings | |
358 | //--------------------------------------------------------------- | |
1283eee5 | 359 | |
37831078 | 360 | gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0); |
1283eee5 | 361 | |
37831078 | 362 | dm[0]= 258.; |
363 | dm[1]= 266.65; | |
364 | dm[2]= 0.3; | |
1283eee5 | 365 | |
37831078 | 366 | gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom |
1283eee5 | 367 | |
37831078 | 368 | // |
1283eee5 | 369 | |
37831078 | 370 | dm[0]= 258.; |
371 | dm[1]= 270.9; | |
372 | dm[2]= 0.3; | |
1283eee5 | 373 | |
37831078 | 374 | gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right |
1283eee5 | 375 | |
37831078 | 376 | // |
1283eee5 | 377 | |
37831078 | 378 | dm[0]= 272.2; |
379 | dm[1]= 277.95; | |
380 | dm[2]= 0.3; | |
1283eee5 | 381 | |
37831078 | 382 | gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top |
1283eee5 | 383 | |
37831078 | 384 | //---------------------------------------------------------------- |
385 | // Tpc Outer Contaiment Vessel | |
386 | // mother volume - Al, daughters - composite (sandwich) | |
387 | //---------------------------------------------------------------- | |
388 | ||
389 | dm[0]= 0.; | |
390 | dm[1]= 360.; | |
720b23b8 | 391 | dm[2]=6.; |
1283eee5 | 392 | |
37831078 | 393 | // |
cc80f89e | 394 | |
37831078 | 395 | dm[3]= -250.4; |
396 | dm[4]= 272.2; | |
397 | dm[5]= 277.95; | |
1283eee5 | 398 | |
37831078 | 399 | // |
1283eee5 | 400 | |
37831078 | 401 | dm[6]= -248.4; |
402 | dm[7]= 272.2; | |
403 | dm[8]= 277.95; | |
1283eee5 | 404 | |
37831078 | 405 | // |
720b23b8 | 406 | dm[9]= -248.4; |
407 | dm[10]= 274.81; | |
37831078 | 408 | dm[11]= 277.95; |
37831078 | 409 | // |
1283eee5 | 410 | |
37831078 | 411 | dm[12]= 253.6; |
720b23b8 | 412 | dm[13]= 274.81; |
37831078 | 413 | dm[14]= 277.95; |
1283eee5 | 414 | |
720b23b8 | 415 | // |
1283eee5 | 416 | |
720b23b8 | 417 | dm[15]= 253.6; |
37831078 | 418 | dm[16]= 265.2; |
419 | dm[17]= 277.95; | |
1283eee5 | 420 | |
720b23b8 | 421 | // |
422 | ||
423 | dm[18]= 255.6; | |
424 | dm[19]= 265.2; | |
425 | dm[20]= 277.95; | |
426 | ||
427 | gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21); | |
1283eee5 | 428 | |
37831078 | 429 | // Daughter volumes |
1283eee5 | 430 | |
37831078 | 431 | // Tpc SAndwich 1 - Al |
432 | ||
433 | dm[0]= 274.81; | |
434 | dm[1]= 277.95; | |
435 | dm[2]= 251.7; | |
1283eee5 | 436 | |
37831078 | 437 | gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3); |
1283eee5 | 438 | |
37831078 | 439 | // Tpc SAndwich 2 - Tedlar |
1283eee5 | 440 | |
37831078 | 441 | dm[0] += 5.e-3; |
442 | dm[1] -= 5.e-3; | |
443 | ||
444 | gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3); | |
1283eee5 | 445 | |
37831078 | 446 | // Tpc SAndwich 3 - Kevlar |
8c555625 | 447 | |
37831078 | 448 | dm[0] += 5e-3; |
449 | dm[1] -= 5.e-3; | |
8c555625 | 450 | |
37831078 | 451 | gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3); |
8c555625 | 452 | |
37831078 | 453 | // Tpc SAndwich 4 - NOMEX honeycomb |
1283eee5 | 454 | |
37831078 | 455 | dm[0] += 0.06; |
456 | dm[1] -= 0.06; | |
1283eee5 | 457 | |
2c668420 | 458 | gMC->Gsvolu("TSA4","TUBE",idtmed[6],dm,3); |
37831078 | 459 | |
460 | // 4->3->2->1->TOCV | |
8c555625 | 461 | |
37831078 | 462 | gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY"); |
463 | gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY"); | |
464 | gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY"); | |
fe4da5cc | 465 | |
37831078 | 466 | gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY"); |
fe4da5cc | 467 | |
37831078 | 468 | // TCOV-> TOIN |
fe4da5cc | 469 | |
37831078 | 470 | gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 471 | |
37831078 | 472 | //------------------------------------------------------- |
473 | // Tpc Outer Field Cage | |
474 | // mother volume - Al, daughters - composite (sandwich) | |
475 | //------------------------------------------------------- | |
1283eee5 | 476 | |
37831078 | 477 | dm[0]=0.; |
478 | dm[1]=360.; | |
479 | dm[2]=6.; | |
1283eee5 | 480 | |
37831078 | 481 | dm[3]= -253.; |
482 | dm[4]= 258.; | |
483 | dm[5]= 277.95; | |
1283eee5 | 484 | |
37831078 | 485 | // |
1283eee5 | 486 | |
37831078 | 487 | dm[6]= -251.; |
488 | dm[7]= 258.; | |
489 | dm[8]= 277.95; | |
1283eee5 | 490 | |
37831078 | 491 | // |
492 | ||
493 | dm[9]= -251.; | |
494 | dm[10]= 258.; | |
495 | dm[11]= 260.05; | |
1283eee5 | 496 | |
37831078 | 497 | // |
1283eee5 | 498 | |
37831078 | 499 | dm[12]= 251.; |
500 | dm[13]= 258.; | |
501 | dm[14]= 260.05; | |
1283eee5 | 502 | |
37831078 | 503 | // |
1283eee5 | 504 | |
37831078 | 505 | dm[15]= 251.; |
506 | dm[16]= 258.; | |
720b23b8 | 507 | dm[17]= 270.9; |
1283eee5 | 508 | |
37831078 | 509 | // |
1283eee5 | 510 | |
37831078 | 511 | dm[18]= 253.; |
512 | dm[19]= 258.; | |
513 | dm[20]= 270.9; | |
1283eee5 | 514 | |
37831078 | 515 | gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21); |
1283eee5 | 516 | |
37831078 | 517 | // Daughter volumes |
1283eee5 | 518 | |
6a905708 | 519 | // Tpc SAndwich 5 - Tedlar |
1283eee5 | 520 | |
37831078 | 521 | dm[0]= 258.; |
522 | dm[1]= 260.05; | |
523 | dm[2]= 251.7; | |
1283eee5 | 524 | |
6a905708 | 525 | gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3); |
1283eee5 | 526 | |
6a905708 | 527 | // Tpc SAndwich 6 - Kevlar |
1283eee5 | 528 | |
37831078 | 529 | dm[0] += 5.e-3; |
530 | dm[1] -= 5.e-3; | |
1283eee5 | 531 | |
6a905708 | 532 | gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3); |
1283eee5 | 533 | |
1283eee5 | 534 | |
37831078 | 535 | // Tpc SAndwich 8 - NOMEX |
1283eee5 | 536 | |
37831078 | 537 | dm[0] += 0.02; |
538 | dm[1] -= 0.02; | |
1283eee5 | 539 | |
6a905708 | 540 | gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3); |
1283eee5 | 541 | |
6a905708 | 542 | // 7->6->5->TOFC |
1283eee5 | 543 | |
37831078 | 544 | gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY"); |
545 | gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 546 | |
37831078 | 547 | gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 548 | |
37831078 | 549 | // TOFC->TOIN |
fe4da5cc | 550 | |
37831078 | 551 | gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 552 | |
37831078 | 553 | // TOIN->TPC |
1283eee5 | 554 | |
37831078 | 555 | gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY"); |
1283eee5 | 556 | |
37831078 | 557 | //-------------------------------------------------------------------- |
558 | // Tpc Inner INsulator (CO2) | |
559 | //-------------------------------------------------------------------- | |
1283eee5 | 560 | |
1283eee5 | 561 | |
37831078 | 562 | dm[0]=0.; |
563 | dm[1]= 360.; | |
564 | dm[2]= 15.; | |
1283eee5 | 565 | |
37831078 | 566 | // |
1283eee5 | 567 | |
37831078 | 568 | dm[3]= -255.6; |
569 | dm[4]= 66.2; | |
570 | dm[5]= 74.8; | |
1283eee5 | 571 | |
37831078 | 572 | // |
1283eee5 | 573 | |
37831078 | 574 | Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part |
1283eee5 | 575 | |
37831078 | 576 | dm[6]= -253.6; |
577 | dm[7]= 59.0+ (253.6-73.3)*tanL; | |
578 | dm[8]= 74.8; | |
1283eee5 | 579 | |
37831078 | 580 | // |
1283eee5 | 581 | |
37831078 | 582 | dm[9]= -253.6; |
583 | dm[10]= dm[7]; | |
584 | dm[11]= 79.2; | |
1283eee5 | 585 | |
37831078 | 586 | // |
1283eee5 | 587 | |
37831078 | 588 | dm[12]= -73.3; |
589 | dm[13]= 59.0; | |
590 | dm[14]= 79.2; | |
1283eee5 | 591 | |
37831078 | 592 | // |
1283eee5 | 593 | |
37831078 | 594 | dm[15]= -73.3; |
595 | dm[16]= 56.9; | |
596 | dm[17]= 79.2; | |
1283eee5 | 597 | |
37831078 | 598 | // |
1283eee5 | 599 | |
37831078 | 600 | dm[18]= -72.1; |
601 | dm[19]= 59.6; | |
602 | dm[20]= 79.2; | |
1283eee5 | 603 | |
37831078 | 604 | // |
1283eee5 | 605 | |
37831078 | 606 | dm[21]= -72.1; |
607 | dm[22]= 60.65; | |
608 | dm[23]= 79.2; | |
1283eee5 | 609 | |
37831078 | 610 | // |
1283eee5 | 611 | |
37831078 | 612 | dm[24]= 72.1; |
613 | dm[25]= 60.65; | |
614 | dm[26]= 79.2; | |
1283eee5 | 615 | |
37831078 | 616 | // |
1283eee5 | 617 | |
37831078 | 618 | dm[27]= 72.1; |
619 | dm[28]= 59.6; | |
620 | dm[29]= 79.2; | |
1283eee5 | 621 | |
37831078 | 622 | // |
1283eee5 | 623 | |
37831078 | 624 | dm[30]= 73.3; |
625 | dm[31]= 56.9; | |
626 | dm[32]= 79.2; | |
1283eee5 | 627 | |
37831078 | 628 | // |
1283eee5 | 629 | |
37831078 | 630 | dm[33]= 73.3; |
631 | dm[34]= 59.0; | |
632 | dm[35]= 79.2; | |
1283eee5 | 633 | |
37831078 | 634 | // |
1283eee5 | 635 | |
37831078 | 636 | dm[36]= 250.4; |
637 | dm[37]= 66.0; | |
638 | dm[38]= 79.2; | |
1283eee5 | 639 | |
37831078 | 640 | // |
1283eee5 | 641 | |
37831078 | 642 | dm[39]= 253.0; |
643 | dm[40]= 66.0; | |
644 | dm[41]= 79.2; | |
1283eee5 | 645 | |
37831078 | 646 | // |
1283eee5 | 647 | |
37831078 | 648 | dm[42]= 253.0; |
649 | dm[43]= 75.3; | |
650 | dm[44]= 79.2; | |
1283eee5 | 651 | |
652 | // | |
1283eee5 | 653 | |
37831078 | 654 | dm[45]= 253.6; |
655 | dm[46]= 75.3; | |
656 | dm[47]= 79.2; | |
1283eee5 | 657 | |
37831078 | 658 | gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48); |
1283eee5 | 659 | |
1283eee5 | 660 | |
37831078 | 661 | //-------------------------------------------------------------------- |
662 | // Tpc Inner Containment vessel, Left part | |
663 | // mother volume - Al, daughter - composite (sandwich) | |
664 | //-------------------------------------------------------------------- | |
1283eee5 | 665 | |
37831078 | 666 | dm[0]= 0.; |
667 | dm[1]= 360.; | |
668 | dm[2]= 8.; | |
669 | ||
670 | // | |
671 | ||
672 | dm[3]= -255.6; | |
673 | dm[4]= 66.2; | |
674 | dm[5]= 74.8; | |
1283eee5 | 675 | |
37831078 | 676 | // |
1283eee5 | 677 | |
37831078 | 678 | Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL); |
679 | Float_t sandThick = 2.14; // cone composite thickness | |
1283eee5 | 680 | |
1283eee5 | 681 | |
682 | // | |
37831078 | 683 | |
684 | dm[6]= -253.6; | |
685 | dm[7]= 59.0 + (253.6-73.3)*tanL; | |
686 | dm[8]= 74.8; | |
687 | ||
1283eee5 | 688 | // |
689 | ||
37831078 | 690 | dm[9]= -253.6; |
691 | dm[10]= dm[7]; | |
692 | dm[11]= dm[7]+sandThick/cosL; | |
1283eee5 | 693 | |
37831078 | 694 | // |
1283eee5 | 695 | |
37831078 | 696 | dm[12]= -75.6; |
697 | dm[13]= 59.0+(75.6-73.3)*tanL; | |
698 | dm[14]= dm[13]+sandThick/cosL; | |
1283eee5 | 699 | |
37831078 | 700 | // |
1283eee5 | 701 | |
37831078 | 702 | dm[15]= -75.6; |
703 | dm[16]= dm[13]; | |
704 | dm[17]= 60.65; | |
1283eee5 | 705 | |
37831078 | 706 | // |
1283eee5 | 707 | |
37831078 | 708 | dm[18]= -73.3; |
709 | dm[19]= 59.0; | |
710 | dm[20]= 60.65; | |
1283eee5 | 711 | |
37831078 | 712 | // |
1283eee5 | 713 | |
37831078 | 714 | dm[21]= -73.3; |
715 | dm[22]= 56.9; | |
716 | dm[23]= 60.65; | |
1283eee5 | 717 | |
37831078 | 718 | // |
1283eee5 | 719 | |
37831078 | 720 | dm[24]= -72.1; |
721 | dm[25]= 56.9; | |
722 | dm[26]= 60.65; | |
1283eee5 | 723 | |
37831078 | 724 | gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27); |
1283eee5 | 725 | |
37831078 | 726 | // Daughter volumes |
1283eee5 | 727 | |
37831078 | 728 | // Tpc SAndwich 9 - Al |
1283eee5 | 729 | |
37831078 | 730 | dm[0]= 0.; |
731 | dm[1]= 360.; | |
732 | dm[2]= 2.; | |
1283eee5 | 733 | |
37831078 | 734 | // |
1283eee5 | 735 | |
37831078 | 736 | dm[3]= - 254.3; |
737 | dm[4]= 59.0+(254.3-73.3)*tanL; | |
738 | dm[5]= dm[4]+sandThick/cosL; | |
1283eee5 | 739 | |
37831078 | 740 | // |
1283eee5 | 741 | |
37831078 | 742 | dm[6]= -78.3; |
743 | dm[7]= 59.0+(78.3-73.3)*tanL; | |
744 | dm[8]= dm[7]+sandThick/cosL; | |
1283eee5 | 745 | |
37831078 | 746 | // |
1283eee5 | 747 | |
37831078 | 748 | gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9); |
1283eee5 | 749 | |
37831078 | 750 | // Tpc SAndwich 10 - Tedlar |
1283eee5 | 751 | |
37831078 | 752 | dm[4]+= 5.e-3/cosL; |
753 | dm[5]-= 5.e-3/cosL; | |
1283eee5 | 754 | |
37831078 | 755 | // |
1283eee5 | 756 | |
37831078 | 757 | dm[7]+= 5.e-3/cosL; |
758 | dm[8]+= 5.e-3/cosL; | |
1283eee5 | 759 | |
37831078 | 760 | gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9); |
1283eee5 | 761 | |
37831078 | 762 | // Tpc SAndwich 11 - Kevlar |
1283eee5 | 763 | |
37831078 | 764 | dm[4]+= 5.e-3/cosL; |
765 | dm[5]-= 5.e-3/cosL; | |
1283eee5 | 766 | |
37831078 | 767 | // |
1283eee5 | 768 | |
37831078 | 769 | dm[7]+= 5.e-3/cosL; |
770 | dm[8]+= 5.e-3/cosL; | |
1283eee5 | 771 | |
37831078 | 772 | gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9); |
1283eee5 | 773 | |
37831078 | 774 | // Tpc SAndwich 12 - NOMEX |
1283eee5 | 775 | |
37831078 | 776 | dm[4]+= 0.06/cosL; |
777 | dm[5]-= 0.06/cosL; | |
1283eee5 | 778 | |
37831078 | 779 | // |
1283eee5 | 780 | |
37831078 | 781 | dm[7]+= 0.06/cosL; |
782 | dm[8]+= 0.06/cosL; | |
1283eee5 | 783 | |
37831078 | 784 | gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9); |
1283eee5 | 785 | |
37831078 | 786 | // 12->11->10->9 |
1283eee5 | 787 | |
37831078 | 788 | gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY"); |
789 | gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY"); | |
790 | gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 791 | |
37831078 | 792 | // TSA9->TICL |
793 | ||
794 | gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 795 | |
37831078 | 796 | //-------------------------------------------------------------------- |
797 | // Tpc Inner Containment vessel, Right part | |
798 | // mother volume - Al, daughter - composite (sandwich) | |
799 | //-------------------------------------------------------------------- | |
1283eee5 | 800 | |
37831078 | 801 | dm[0]= 0.; |
802 | dm[1]= 360.; | |
803 | dm[2]=8.; | |
1283eee5 | 804 | |
37831078 | 805 | // |
1283eee5 | 806 | |
37831078 | 807 | dm[3]= 72.1; |
808 | dm[4]= 56.9; | |
809 | dm[5]= 60.65; | |
1283eee5 | 810 | |
37831078 | 811 | // |
1283eee5 | 812 | |
37831078 | 813 | dm[6]= 73.3; |
814 | dm[7]= 56.9; | |
815 | dm[8]= 60.65; | |
1283eee5 | 816 | |
37831078 | 817 | // |
1283eee5 | 818 | |
37831078 | 819 | dm[9]= 73.3; |
820 | dm[10]= 59.0; | |
821 | dm[11]= 60.65; | |
1283eee5 | 822 | |
37831078 | 823 | // |
1283eee5 | 824 | |
37831078 | 825 | Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems |
826 | Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above | |
1283eee5 | 827 | |
37831078 | 828 | // |
1283eee5 | 829 | |
37831078 | 830 | dm[12]= 75.6; |
831 | dm[13]= 59.0+(75.6-73.3)*tanR; | |
832 | dm[14]= 60.65; | |
1283eee5 | 833 | |
37831078 | 834 | // |
1283eee5 | 835 | |
37831078 | 836 | dm[15]= 75.6; |
837 | dm[16]= dm[13]; | |
838 | dm[17]= dm[16]+sandThick/cosR; | |
1283eee5 | 839 | |
37831078 | 840 | // |
1283eee5 | 841 | |
37831078 | 842 | dm[18]= 248.4; |
843 | dm[19]= 59.0+(248.4-73.3)*tanR; | |
844 | dm[20]= dm[19]+sandThick/cosR; | |
1283eee5 | 845 | |
37831078 | 846 | // |
1283eee5 | 847 | |
37831078 | 848 | dm[21]= 248.4; |
849 | dm[22]= dm[19]; | |
850 | dm[23]= 70.2; | |
1283eee5 | 851 | |
37831078 | 852 | // |
1283eee5 | 853 | |
37831078 | 854 | dm[24]= 250.4; |
855 | dm[25]= 66.0; | |
856 | dm[26]= 70.2; | |
1283eee5 | 857 | |
37831078 | 858 | gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27); |
1283eee5 | 859 | |
1283eee5 | 860 | |
1283eee5 | 861 | |
37831078 | 862 | // Daughter volumes |
1283eee5 | 863 | |
37831078 | 864 | // Tpc SAndwich 13 - Al |
1283eee5 | 865 | |
37831078 | 866 | dm[0]= 0.; |
867 | dm[1]= 360.; | |
868 | dm[2]= 2.; | |
1283eee5 | 869 | |
37831078 | 870 | // |
1283eee5 | 871 | |
37831078 | 872 | dm[3]= 78.3; |
873 | dm[4]= 59.0+(78.3-73.3)*tanR; | |
874 | dm[5]= dm[4]+sandThick/cosR; | |
1283eee5 | 875 | |
37831078 | 876 | // |
1283eee5 | 877 | |
37831078 | 878 | dm[6]= 249.1; |
879 | dm[7]= 59.0+(249.1-73.3)*tanR; | |
880 | dm[8]= dm[7]+sandThick/cosR; | |
1283eee5 | 881 | |
37831078 | 882 | // |
1283eee5 | 883 | |
37831078 | 884 | gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9); |
1283eee5 | 885 | |
37831078 | 886 | // Tpc SAndwich 14 - Tedlar |
1283eee5 | 887 | |
37831078 | 888 | dm[4]+= 5.e-3/cosR; |
889 | dm[5]-= 5.e-3/cosR; | |
1283eee5 | 890 | |
37831078 | 891 | // |
1283eee5 | 892 | |
37831078 | 893 | dm[7]+= 5.e-3/cosR; |
894 | dm[8]+= 5.e-3/cosR; | |
1283eee5 | 895 | |
37831078 | 896 | gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9); |
1283eee5 | 897 | |
37831078 | 898 | // Tpc SAndwich 15 - Kevlar |
1283eee5 | 899 | |
37831078 | 900 | dm[4]+= 5.e-3/cosR; |
901 | dm[5]-= 5.e-3/cosR; | |
1283eee5 | 902 | |
37831078 | 903 | // |
1283eee5 | 904 | |
37831078 | 905 | dm[7]+= 5.e-3/cosR; |
906 | dm[8]+= 5.e-3/cosR; | |
1283eee5 | 907 | |
37831078 | 908 | gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9); |
1283eee5 | 909 | |
37831078 | 910 | // Tpc SAndwich 16 - NOMEX |
1283eee5 | 911 | |
37831078 | 912 | dm[4]+= 0.06/cosR; |
913 | dm[5]-= 0.06/cosR; | |
1283eee5 | 914 | |
37831078 | 915 | // |
1283eee5 | 916 | |
37831078 | 917 | dm[7]+= 0.06/cosR; |
918 | dm[8]+= 0.06/cosR; | |
1283eee5 | 919 | |
37831078 | 920 | gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9); |
1283eee5 | 921 | |
37831078 | 922 | // 16->15->14->13 |
1283eee5 | 923 | |
37831078 | 924 | gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY"); |
925 | gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY"); | |
926 | gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 927 | |
37831078 | 928 | // TS12->TICR |
1283eee5 | 929 | |
37831078 | 930 | gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY"); |
1283eee5 | 931 | |
37831078 | 932 | //------------------------------------------------------ |
933 | // Tpc Inner Field Cage | |
934 | // mother volume - Al, daughters - composite (sandwich) | |
935 | //------------------------------------------------------ | |
1283eee5 | 936 | |
37831078 | 937 | dm[0]= 0.; |
938 | dm[1]= 360.; | |
939 | dm[2]=6.; | |
1283eee5 | 940 | |
fe4da5cc | 941 | // |
942 | ||
37831078 | 943 | dm[3]= -253.0; |
944 | dm[4]= 70.7; | |
945 | dm[5]= 79.2; | |
fe4da5cc | 946 | |
fe4da5cc | 947 | // |
948 | ||
37831078 | 949 | dm[6]= -251.0; |
950 | dm[7]= 70.7; | |
951 | dm[8]= 79.2; | |
952 | ||
fe4da5cc | 953 | // |
37831078 | 954 | |
955 | dm[9]= -251.0; | |
956 | dm[10]= 77.15; | |
957 | dm[11]= 79.2; | |
958 | ||
fe4da5cc | 959 | // |
37831078 | 960 | |
961 | dm[12]= 251.0; | |
962 | dm[13]= 77.15; | |
963 | dm[14]= 79.2; | |
fe4da5cc | 964 | |
fe4da5cc | 965 | // |
37831078 | 966 | |
967 | dm[15]= 251.0; | |
968 | dm[16]= 66.0; | |
969 | dm[17]= 79.2; | |
970 | ||
fe4da5cc | 971 | // |
fe4da5cc | 972 | |
37831078 | 973 | dm[18]= 253.0; |
974 | dm[19]= 66.0; | |
975 | dm[20]= 79.2; | |
fe4da5cc | 976 | |
37831078 | 977 | gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21); |
fe4da5cc | 978 | |
37831078 | 979 | // Daughter volumes |
fe4da5cc | 980 | |
6a905708 | 981 | // Tpc Sandwich 17 - Tedlar |
37831078 | 982 | |
983 | dm[0]= 77.15; | |
984 | dm[1]= 79.2; | |
985 | dm[2]= 251.7; | |
986 | ||
6a905708 | 987 | gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3); |
37831078 | 988 | |
6a905708 | 989 | // Tpc Sandwich 18 - Kevlar |
37831078 | 990 | |
991 | dm[0]+= 5.e-3; | |
992 | dm[1]-= 5.e-3; | |
993 | ||
6a905708 | 994 | gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3); |
37831078 | 995 | |
37831078 | 996 | |
6a905708 | 997 | // Tpc Sandwich 19 - NOMEX |
37831078 | 998 | |
6a905708 | 999 | dm[0]+= 0.02; |
1000 | dm[1]-= 0.02; | |
37831078 | 1001 | |
6a905708 | 1002 | gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3); |
37831078 | 1003 | |
6a905708 | 1004 | // 19->18->17 |
37831078 | 1005 | |
37831078 | 1006 | gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY"); |
1007 | gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY"); | |
1008 | ||
1009 | // TS17->TIFC | |
1010 | ||
1011 | gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY"); | |
1012 | ||
1013 | // TPC Rings | |
1014 | ||
1015 | dm[0]= 70.7; | |
1016 | dm[1]= 79.2; | |
1017 | dm[2]= 0.3; | |
1018 | ||
1019 | gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3); | |
1020 | ||
1021 | dm[0]= 66.0; | |
1022 | dm[1]= 70.2; | |
1023 | ||
1024 | gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3); | |
1025 | ||
1026 | dm[0]= 75.3; | |
1027 | dm[1]= 79.2; | |
1028 | ||
1029 | gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3); | |
1030 | ||
1031 | // TICL->TIIN | |
1032 | ||
1033 | gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1034 | ||
1035 | // TICR->TIIN | |
1036 | ||
1037 | gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1038 | ||
1039 | // TIFC->TIIN | |
1040 | ||
1041 | gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1042 | ||
1043 | // Tpc Sandwich 21 - Al (central barrel) | |
1044 | ||
08db548a | 1045 | dm[0]= 60.65; |
1046 | dm[1]= 61.21; | |
37831078 | 1047 | dm[2]= 75.2; |
1048 | ||
1049 | gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3); | |
1050 | ||
1051 | // Tpc Sandwich 22 - Tedlar (central barrel) | |
1052 | ||
1053 | dm[0]+= 5.e-3; | |
1054 | dm[1]-= 5.e-3; | |
1055 | ||
1056 | gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3); | |
1057 | ||
1058 | // Tpc Sandwich 23 - Kevlar (central barrel) | |
1059 | ||
1060 | dm[0]+= 5.e-3; | |
1061 | dm[1]-= 5.e-3; | |
1062 | ||
1063 | gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3); | |
1064 | ||
1065 | // Tpc Sandwich 24 - NOMEX (central barrel) | |
1066 | ||
1067 | dm[0]+= 0.02; | |
1068 | dm[1]-= 0.02; | |
1069 | ||
1070 | gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3); | |
1071 | ||
1072 | // 24->23->22->21 | |
1073 | ||
1074 | gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY"); | |
1075 | gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY"); | |
1076 | gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY"); | |
1077 | ||
1078 | gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1079 | ||
1080 | // put everything into the TPC | |
1081 | ||
1082 | gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
1083 | ||
1084 | ||
1085 | //--------------------------------------------------------- | |
1086 | // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10) | |
1087 | // and its daughters (HV membrane, rods, readout chambers) | |
1088 | //--------------------------------------------------------- | |
1089 | ||
1090 | dm[0]= 79.2; | |
1091 | dm[1]= 258.0; | |
1092 | dm[2]= 253.6; | |
1093 | ||
1094 | gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3); // nonsensitive | |
1095 | ||
1096 | // sector opening angles | |
1097 | ||
1098 | Float_t innerOpenAngle = fTPCParam->GetInnerAngle(); | |
1099 | Float_t outerOpenAngle = fTPCParam->GetOuterAngle(); | |
1100 | ||
1101 | // sector angle shift | |
1102 | ||
1103 | Float_t innerAngleShift = fTPCParam->GetInnerAngleShift(); | |
1104 | ||
1105 | // All above parameters are identical for inner and outer | |
1106 | // sectors. The distinction is kept for the historical reasons | |
1107 | // and eventually will disappear. | |
1108 | ||
1109 | Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle); | |
1110 | Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha); | |
1111 | Float_t space; | |
1112 | ||
1113 | //------------------------------------------------------------------------- | |
1114 | // Tpc Inner Readout Chambers | |
1115 | //------------------------------------------------------------------------- | |
1116 | ||
1117 | dm[0]= 14.483; | |
1118 | dm[1]= 23.3345; | |
1119 | dm[2]= 1.6; // thickness | |
1120 | dm[3]= 25.1; | |
1121 | ||
1122 | gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4); | |
1123 | ||
1124 | // this volume will be positioned in the empty space | |
1125 | // of the end-cap to avoid overlaps | |
1126 | ||
1127 | dm[0]= 13.7305; | |
1128 | dm[1]= 21.1895; | |
1129 | dm[2]= 2.25; | |
1130 | dm[3]= 21.15; | |
1131 | ||
1132 | gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4); | |
1133 | ||
1134 | //------------------------------------------------ | |
1135 | // Tpc Inner readout chamber Pad Plane | |
1136 | //------------------------------------------------ | |
1137 | ||
1138 | dm[0]= 14.483; | |
1139 | dm[1]= 23.3345; | |
1140 | dm[2]= 0.5; | |
1141 | dm[3]= 25.1; | |
1142 | ||
1143 | gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4); | |
1144 | ||
1145 | // | |
1146 | ||
1147 | dm[0] -= 1.218511934; | |
1148 | dm[1] -= 1.218511934; | |
1149 | dm[2] = 0.35; | |
1150 | ||
1151 | gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4); | |
1152 | ||
1153 | gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY"); | |
1154 | ||
1155 | gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY"); | |
1156 | ||
1157 | //---------------------------------------------- | |
1158 | // Tpc Readout Chambers Empty spaces - for both | |
1159 | // inner and outer sectors | |
1160 | //---------------------------------------------- | |
1161 | ||
1162 | gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0); | |
1163 | ||
1164 | // Inner sector - 4 spaces | |
1165 | ||
1166 | ||
1167 | dm[3] = 4.7625; | |
1168 | dm[0] = 12.472; | |
1169 | ||
1170 | Float_t rr = 90.52; | |
1171 | Float_t zz; | |
1172 | ||
1173 | zz= -12.7875; | |
1174 | ||
1175 | space = rr*tanAlpha-dm[0]; | |
1176 | ||
1177 | for(Int_t nsLow=0;nsLow<4;nsLow++){ | |
1178 | ||
1179 | rr += 9.525; | |
1180 | dm[1]= rr*tanAlpha - space; | |
1181 | ||
1182 | dm[2]=0.8; | |
1183 | ||
1184 | gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4); | |
1185 | ||
1186 | // | |
1187 | ||
1188 | dm[2]= 1.2; | |
1189 | ||
1190 | gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4); | |
1191 | ||
1192 | rr += 0.4; | |
1193 | dm[0] = rr*tanAlpha - space; | |
1194 | zz += (0.4+9.525); | |
1195 | ||
1196 | } | |
1197 | ||
1198 | dm[0]= 12.472; | |
1199 | // dm[1] - this is the dm[1] from the previous TRCE | |
1200 | dm[2]= 1.05; | |
1201 | dm[3]= 19.65; | |
1202 | ||
1203 | gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4); | |
1204 | ||
1205 | // | |
1206 | // TPc Space for Connectors | |
1207 | // | |
1208 | ||
1209 | dm[0]= .3; | |
1210 | dm[1]= .3; | |
1211 | dm[2]= 4.5; | |
1212 | ||
1213 | gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3); | |
1214 | ||
1215 | // TPC Connectors | |
1216 | ||
1217 | dm[0]= .25; | |
1218 | dm[1]= .15; | |
1219 | dm[2]= 3.75; | |
1220 | ||
1221 | gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3); | |
1222 | ||
1223 | gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY"); | |
1224 | ||
1225 | zz = -12.7875; | |
1226 | ||
1227 | Float_t alpha; | |
1228 | Float_t astep; | |
1229 | ||
1230 | Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles | |
1231 | ||
1232 | // inner part of the inner sector - 2 x 20 holes | |
1233 | ||
1234 | astep = 20.00096874/19.; | |
1235 | ||
1236 | alpha = 10.00048437-astep; | |
1237 | ||
1238 | Float_t x1,x2; | |
1239 | ||
1240 | x1 = 13.31175725; | |
1241 | x1 -= 0.996357832; | |
1242 | ||
1243 | x2 = 15.06180253; | |
1244 | x2 -= 1.163028812; | |
1245 | ||
1246 | Int_t ncon; | |
1247 | ||
1248 | for(ncon=0;ncon<20;ncon++){ | |
1249 | ||
1250 | phi1 = 0.; | |
1251 | theta1 = 90.+alpha; | |
1252 | phi2=90.; | |
1253 | theta2 = 90.; | |
1254 | phi3 = (alpha>0) ? 0. : 180.; | |
1255 | theta3 = TMath::Abs(alpha); | |
1256 | ||
1257 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1258 | ||
1259 | ||
1260 | ||
1261 | gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY"); | |
1262 | gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY"); | |
1263 | ||
1264 | ||
1265 | x1 -= 1.296357833; | |
1266 | x2 -= 1.463028812; | |
1267 | ||
1268 | alpha -= astep; | |
1269 | nRotMat++; | |
1270 | ||
1271 | } | |
1272 | ||
1273 | // outer part of the inner sector - 2 x 25 holes | |
1274 | ||
1275 | astep = 20.00096874/24.; | |
1276 | alpha = 10.00048437-astep; | |
1277 | ||
1278 | x1 = 16.81184781; | |
1279 | x1 -= 1.016295986; | |
1280 | ||
1281 | x2 = 18.5618931; | |
1282 | x2 -= 1.150914854; | |
1283 | ||
1284 | for(ncon=0;ncon<25;ncon++){ | |
1285 | ||
1286 | phi1 = 0.; | |
1287 | theta1 = 90.+alpha; | |
1288 | phi2=90.; | |
1289 | theta2 = 90.; | |
1290 | phi3 = (alpha>0) ? 0. : 180.; | |
1291 | theta3 = TMath::Abs(alpha); | |
1292 | ||
1293 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1294 | ||
1295 | ||
1296 | ||
1297 | gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY"); | |
1298 | gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY"); | |
1299 | ||
1300 | ||
1301 | x1 -= 1.316295986; | |
1302 | x2 -= 1.450914854; | |
1303 | ||
1304 | alpha -= astep; | |
1305 | nRotMat++; | |
1306 | ||
1307 | } | |
1308 | ||
1309 | //-------------------------------------------------------------------------- | |
1310 | // TPC Outer Readout Chambers | |
1311 | // this is NOT a final design | |
1312 | //-------------------------------------------------------------------------- | |
1313 | ||
1314 | dm[0]= 23.3875; | |
1315 | dm[1]= 43.524; | |
1316 | dm[2]= 1.5; //thickness | |
1317 | dm[3]= 57.1; | |
1318 | ||
1319 | gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4); | |
1320 | ||
1321 | //------------------------------------------------ | |
1322 | // Tpc Outer readout chamber Pad Plane | |
1323 | //------------------------------------------------ | |
1324 | ||
1325 | dm[2]= 0.5; | |
1326 | ||
1327 | gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4); | |
1328 | ||
1329 | dm[0] -= 1.218511934; | |
1330 | dm[1] -= 1.218511934; | |
1331 | dm[2] = 0.35; | |
1332 | ||
1333 | gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4); | |
1334 | ||
1335 | gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY"); | |
1336 | ||
1337 | gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY"); | |
1338 | ||
1339 | // empty space | |
1340 | ||
1341 | ||
1342 | dm[0]= 21.035; | |
1343 | dm[1]= 38.7205; | |
1344 | dm[2]= 0.7; | |
1345 | dm[3]= 50.15; | |
1346 | ||
1347 | gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4); | |
1348 | ||
1349 | dm[0]= 22.2935; | |
1350 | dm[1]= 40.5085; | |
1351 | dm[2]= 2.25; | |
1352 | dm[3]= 51.65; | |
1353 | ||
1354 | gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4); | |
1355 | ||
1356 | dm[0]= 21.35; | |
1357 | dm[1]= 38.7205; | |
1358 | dm[2]= 2.25; | |
1359 | dm[3]= 50.15; | |
1360 | ||
1361 | gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4); | |
1362 | ||
1363 | ||
1364 | ||
1365 | //----------------------------------------------- | |
1366 | // Tpc Services Support Wheel | |
1367 | //----------------------------------------------- | |
1368 | ||
1369 | dm[0]=0.; | |
1370 | dm[1]=360.; | |
1371 | dm[2]=18.; | |
1372 | dm[3]=2.; | |
1373 | ||
1374 | dm[4]= -5.; | |
1375 | dm[5]= 77.017; | |
1376 | dm[6]= 255.267; | |
1377 | ||
1378 | dm[7]= 5.; | |
1379 | dm[8]= dm[5]; | |
1380 | dm[9]= dm[6]; | |
1381 | ||
1382 | gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10); | |
1383 | ||
1384 | // Tpc Services Wheel Cover | |
1385 | ||
1386 | dm[4]= -0.5; | |
1387 | dm[7]= 0.5; | |
1388 | ||
1389 | gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10); | |
1390 | ||
1391 | // Tpc Service wheel Cover Empty space | |
1392 | ||
1393 | dm[0]= 10.99; | |
1394 | dm[1]= 39.599; | |
1395 | dm[2]= .5; | |
1396 | dm[3]= 81.125; | |
1397 | ||
1398 | gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4); | |
1399 | ||
1400 | // Tpc services Wheel Empty Spaces | |
1401 | ||
1402 | dm[0]= 13.18017507; | |
1403 | dm[1]= 44.61045938; | |
1404 | dm[2]= 4.; | |
1405 | dm[3]= 89.125; | |
1406 | ||
1407 | gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4); | |
1408 | ||
1409 | // Tpc Services Wheel Bars | |
1410 | ||
1411 | gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0); | |
1412 | ||
1413 | // bars-> TWES | |
1414 | ||
1415 | dm[2]= 4.; | |
1416 | dm[3]= .4; | |
1417 | ||
1418 | dm[0]= 13.8149522; | |
1419 | dm[1]= 13.95601379; | |
1420 | ||
1421 | gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4); | |
1422 | ||
1423 | dm[0]= 43.83462067; | |
1424 | dm[1]= 43.97568225; | |
1425 | ||
1426 | gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4); | |
1427 | ||
1428 | // TPc ELectronics - right now 30% X0 Si | |
1429 | ||
1430 | dm[0]= 14.03813696; | |
1431 | dm[1]= 43.3524075; | |
1432 | dm[2]= 1.404; | |
1433 | dm[3]= 83.125; | |
1434 | ||
1435 | gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4); | |
1436 | gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY"); | |
1437 | ||
1438 | //-------------------------------------------------------------------------- | |
1439 | // End caps | |
1440 | //-------------------------------------------------------------------------- | |
1441 | ||
1442 | // TPc Main Wheel - Al | |
1443 | ||
1444 | dm[0]= 75.3; | |
1445 | dm[1]= 264.8; | |
1446 | dm[2]= 3.0; | |
1447 | ||
1448 | gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3); | |
1449 | ||
1450 | // TPc Extra Wheel (to avoid overlapping) - Al | |
1451 | ||
1452 | dm[0]= 264.8; | |
1453 | dm[1]= 277.0; | |
1454 | dm[2]= 1.95; | |
1455 | ||
1456 | gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3); | |
1457 | ||
1458 | //-------------------------------------------------------------------------- | |
1459 | // Tpc Empty Space for the Readout chambers | |
1460 | //-------------------------------------------------------------------------- | |
1461 | ||
1462 | Float_t rLow= 86.2; | |
1463 | Float_t rUp= 243.5; | |
1464 | Float_t dR = 0.5*(rUp-rLow); | |
1465 | ||
1466 | space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide | |
1467 | ||
1468 | dm[0]= rLow*tanAlpha-space; | |
1469 | dm[1]= rUp*tanAlpha-space; | |
1470 | dm[2]= 3.0; | |
1471 | dm[3]= dR; | |
1472 | ||
1473 | gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4); | |
1474 | ||
1475 | // TIC1->TESR | |
1476 | ||
1477 | ||
1478 | gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY"); | |
1479 | ||
1480 | ||
1481 | // TOC1->TESR | |
1482 | ||
1483 | gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY"); | |
1484 | ||
1485 | // Tpc Empty Space Bars - Al (daughters of TESR) | |
1486 | ||
1487 | Float_t zBar; | |
1488 | ||
1489 | gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0); | |
1490 | ||
1491 | // lower bar | |
1492 | ||
1493 | dm[0]= rLow*tanAlpha-space; | |
1494 | dm[1]= 88.7*tanAlpha-space; | |
1495 | dm[2]= 0.95; | |
1496 | dm[3]= 1.275; | |
1497 | ||
1498 | zBar = -dR+dm[3]; | |
1499 | ||
1500 | gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4); | |
1501 | ||
1502 | // middle bar | |
1503 | ||
1504 | dm[0]= 131.65*tanAlpha-space; | |
1505 | dm[1]= 136.5*tanAlpha-space; | |
1506 | dm[3]= 2.425; | |
1507 | ||
1508 | zBar = -dR +131.65+dm[3]-rLow; | |
1509 | ||
1510 | gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4); | |
1511 | ||
1512 | // upper bar | |
1513 | ||
1514 | dm[0]= 240.4*tanAlpha-space; | |
1515 | dm[1]= rUp*tanAlpha-space; | |
1516 | dm[3]= 1.55; | |
1517 | ||
1518 | zBar = dR-dm[3]; | |
1519 | ||
1520 | gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4); | |
1521 | ||
1522 | //------------------------------------------------------ | |
1523 | // TPc Lower "S" Sectors | |
1524 | //------------------------------------------------------ | |
1525 | ||
1526 | ||
1527 | Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow(); | |
1528 | Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp(); | |
1529 | ||
1530 | dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1531 | dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1532 | dm[2] = 0.5*(250. - 0.3); | |
1533 | dm[3] = 0.5*(inSecUpEdge-inSecLowEdge); | |
1534 | ||
1535 | gMC->Gsvolu("TPLS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1536 | ||
1537 | //---------------------------------------------------------- | |
1538 | // TPc Upper Sectors | |
1539 | //---------------------------------------------------------- | |
1540 | ||
1541 | Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow(); | |
1542 | Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp(); | |
1543 | ||
1544 | dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
1545 | dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
1546 | dm[2] = 0.5*(250. - 0.3); | |
1547 | dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge); | |
1548 | ||
1549 | gMC->Gsvolu("TPUS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1550 | ||
1551 | ||
37831078 | 1552 | |
37831078 | 1553 | |
1554 | gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive | |
1555 | ||
1556 | Int_t nofStrips,nstr; | |
1557 | Float_t r1,r2,zs; | |
1558 | Float_t stripThick = 0.01; // 100 microns | |
1559 | Float_t deadSpace; | |
1560 | ||
1561 | // inner sector | |
1562 | ||
d4c354b9 | 1563 | |
1564 | // if all lower sectors selected define only 1 strip | |
1565 | ||
1566 | nofStrips=((fSecAL <0)||(fSecAL>=0 && fSens<0)) ? 1 : fTPCParam->GetNRowLow(); | |
37831078 | 1567 | deadSpace = fTPCParam->GetInnerWireMount(); |
1568 | ||
1569 | dm[2] = 0.5*(250. - 0.3); | |
1570 | dm[3] = 0.5 * stripThick; | |
1571 | ||
d4c354b9 | 1572 | |
37831078 | 1573 | for(nstr=0;nstr<nofStrips;nstr++){ |
1574 | ||
1575 | r1 = fTPCParam->GetPadRowRadiiLow(nstr); | |
1576 | r2 = r1 + stripThick; | |
1577 | dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1578 | dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1579 | zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge); | |
1580 | zs += r1; | |
1581 | zs += dm[3]; | |
1582 | ||
1583 | gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1584 | ||
37831078 | 1585 | |
1586 | } | |
1587 | ||
d4c354b9 | 1588 | // strips only if several upper sectors selected end fSens > 0 |
1589 | ||
1590 | if(fSecAU >=0 && fSens >0){ | |
1591 | ||
37831078 | 1592 | Int_t nsSave = nofStrips; |
1593 | ||
1594 | // outer sector | |
1595 | ||
1596 | nofStrips = fTPCParam->GetNRowUp(); | |
1597 | deadSpace = fTPCParam->GetOuterWireMount(); | |
1598 | ||
1599 | dm[2] = 0.5*(250. - 0.3); | |
1600 | dm[3] = 0.5 * stripThick; | |
d4c354b9 | 1601 | |
37831078 | 1602 | |
1603 | for(nstr=0;nstr<nofStrips;nstr++){ | |
1604 | ||
1605 | r1 = fTPCParam->GetPadRowRadiiUp(nstr); | |
1606 | r2 = r1 + stripThick; | |
1607 | dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1608 | dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1609 | zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge); | |
1610 | zs += r1; | |
1611 | zs += dm[3]; | |
1612 | ||
1613 | gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1614 | ||
1615 | } | |
d4c354b9 | 1616 | } |
37831078 | 1617 | |
1618 | //------------------------------------------------------- | |
1619 | // positioning of the empty spaces into the main wheel | |
1620 | // and readout chambers and sectors into the drift gas | |
1621 | //------------------------------------------------------- | |
1622 | ||
1623 | Float_t rCenter,xc,yc; | |
1624 | Float_t rInner,rOuter; // center of the inner and outer chamber | |
1625 | ||
1626 | rCenter = rLow+dR; | |
1627 | ||
1628 | rInner = 108.07; | |
1629 | rOuter = 190.68; | |
1630 | ||
1631 | for(Int_t ns=0; ns<nInnerSector;ns++){ | |
1632 | ||
1633 | phi1 = ns * innerOpenAngle + innerAngleShift; | |
1634 | phi1 *= kRaddeg; // in degrees | |
1635 | ||
1636 | phi1 = (Float_t)TMath::Nint(phi1) + 270.; | |
1637 | ||
1638 | if (phi1 > 360.) phi1 -= 360.; | |
1639 | ||
1640 | theta1 = 90.; | |
1641 | phi2 = 90.; | |
1642 | theta2 = 180.; | |
1643 | phi3 = ns * innerOpenAngle + innerAngleShift; | |
1644 | phi3 *= kRaddeg; // in degrees | |
1645 | ||
1646 | phi3 = (Float_t)TMath::Nint(phi3); | |
1647 | ||
1648 | if(phi3 > 360.) phi3 -= 360.; | |
1649 | ||
1650 | theta3 = 90.; | |
1651 | ||
1652 | // "holes"->End plate | |
1653 | ||
1654 | xc = rCenter*TMath::Cos(phi3*kDegrad); | |
1655 | yc = rCenter*TMath::Sin(phi3*kDegrad); | |
1656 | ||
1657 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1658 | ||
1659 | gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1660 | ||
1661 | // TSCE->TSWC (services wheel volumes) | |
1662 | ||
1663 | xc = 166.142*TMath::Cos(phi3*kDegrad); | |
1664 | yc = 166.142*TMath::Sin(phi3*kDegrad); | |
1665 | ||
1666 | gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1667 | gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1668 | ||
1669 | // readout chambers->TDGN (drift gas) | |
1670 | ||
1671 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1672 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1673 | ||
1674 | gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY"); | |
1675 | ||
1676 | // here lower sectors | |
1677 | ||
1678 | if(fSecAL <0){ | |
1679 | ||
1680 | // all lower sectors are positioned | |
1681 | ||
1682 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1683 | gMC-> | |
1684 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1685 | } | |
1686 | else{ | |
1687 | ||
1688 | // only selected sectors are positioned (up to 6 sectors) | |
1689 | ||
1690 | for(Int_t sel=0;sel<6;sel++){ | |
1691 | ||
1692 | if(fSecLows[sel] == ns){ | |
1693 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1694 | } | |
1695 | else if(fSecLows[sel] == ns+nInnerSector){ | |
1696 | gMC-> | |
1697 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1698 | } | |
1699 | } | |
1700 | } // lower sectors finished | |
1701 | ||
1702 | xc = rOuter*TMath::Cos(phi3*kDegrad); | |
1703 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1704 | ||
1705 | gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY"); | |
1706 | ||
1707 | // here upper sectors | |
1708 | ||
1709 | if(fSecAU <0){ | |
1710 | ||
1711 | // all upper sectors | |
1712 | ||
1713 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1714 | gMC-> | |
1715 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1716 | } | |
1717 | else{ | |
1718 | ||
1719 | // only selected sectors (up to 12) | |
1720 | ||
1721 | for(Int_t sel=0;sel<12;sel++){ | |
1722 | if(fSecUps[sel] == ns+2*nInnerSector){ | |
1723 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1724 | } | |
1725 | else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){ | |
1726 | gMC-> | |
1727 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1728 | } | |
1729 | } | |
1730 | } // upper sectors finished | |
1731 | ||
1732 | nRotMat++; | |
1733 | ||
1734 | theta2 = 0.; // reflection, needed for readout chambers! | |
1735 | ||
1736 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1737 | ||
1738 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1739 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1740 | ||
1741 | gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY"); | |
1742 | ||
1743 | xc = rOuter*TMath::Cos(phi3*kDegrad); | |
1744 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1745 | ||
1746 | gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY"); | |
1747 | ||
1748 | nRotMat++; | |
1749 | ||
1750 | ||
1751 | } | |
1752 | ||
1753 | // reflection matrix | |
1754 | ||
1755 | theta1 = 90.; | |
1756 | phi1 = 0.; | |
1757 | theta2 = 90.; | |
1758 | phi2 = 270.; | |
1759 | theta3 = 180.; | |
1760 | phi3 = 0.; | |
1761 | ||
1762 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1763 | ||
1764 | ||
1765 | // TPMW->TPC | |
1766 | ||
1767 | gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY"); | |
1768 | gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY"); | |
1769 | gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY"); | |
1770 | gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY"); | |
1771 | ||
1772 | ||
1773 | ||
1774 | //------------------------------------------------------- | |
1775 | // Tpc High Voltage Membrane - NOMEX honeycomb | |
1776 | //------------------------------------------------------- | |
1777 | ||
1778 | dm[0]=0., | |
1779 | dm[1]=360.; | |
1780 | dm[2]=18.; | |
1781 | dm[3]=2.; | |
1782 | ||
1783 | // | |
1784 | ||
1785 | dm[4]= -0.3; | |
1786 | dm[5]= 81.156; | |
1787 | dm[6]= 253.386; | |
1788 | ||
1789 | // | |
1790 | ||
1791 | dm[7]= 0.3; | |
1792 | dm[8]= dm[5]; | |
1793 | dm[9]= dm[6]; | |
1794 | ||
1795 | gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10); | |
1796 | ||
1797 | gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY"); | |
1798 | ||
1799 | //---------------------------------------------------------- | |
1800 | // TPc Support Rods - MAKROLON | |
1801 | //---------------------------------------------------------- | |
1802 | ||
1803 | dm[0]= 0.9; | |
1804 | dm[1]= 1.2; | |
1805 | dm[2]= 126.65; | |
1806 | ||
1807 | gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3); | |
1808 | ||
1809 | for(Int_t nrod=1;nrod<18;nrod++){ | |
1810 | Float_t angle=innerOpenAngle*(Float_t)nrod; | |
1811 | ||
1812 | xc=82.4*TMath::Cos(angle); | |
1813 | yc=82.4*TMath::Sin(angle); | |
1814 | ||
1815 | gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY"); | |
1816 | gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY"); | |
1817 | ||
1818 | xc=254.2*TMath::Cos(angle); | |
1819 | yc=254.2*TMath::Sin(angle); | |
1820 | ||
1821 | gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY"); | |
1822 | gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY"); | |
1823 | ||
1824 | } | |
1825 | ||
1826 | //---------------------------------------------------------- | |
1827 | // Tpc High Voltage rod - MAKROLON + Copper cable | |
1828 | //---------------------------------------------------------- | |
1829 | ||
1830 | // rod with cable (Left) | |
1831 | ||
1832 | dm[0]=0.; | |
1833 | dm[1]=2.25; | |
1834 | dm[2]=126.65; | |
1835 | ||
1836 | gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3); | |
1837 | ||
1838 | // HV cable | |
1839 | ||
1840 | dm[0]=0.; | |
1841 | dm[1]=0.3; | |
1842 | dm[2]=126.65; | |
1843 | ||
1844 | gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3); | |
1845 | ||
1846 | // empty space | |
1847 | ||
1848 | dm[0]=0.3; | |
1849 | dm[1]=1.; | |
1850 | dm[2]=126.65; | |
1851 | ||
1852 | gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3); | |
1853 | ||
1854 | gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1855 | gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1856 | ||
1857 | // rod without cable | |
1858 | ||
1859 | dm[0]=1.8; | |
1860 | dm[1]=2.25; | |
1861 | dm[2]=126.65; | |
1862 | ||
1863 | gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3); | |
1864 | ||
1865 | ||
1866 | ||
1867 | gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY"); | |
1868 | gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY"); | |
1869 | ||
1870 | gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY"); | |
1871 | gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY"); | |
1872 | ||
1873 | ||
1874 | ||
1875 | gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
1876 | ||
1877 | // services wheel cover -> wheel | |
1878 | ||
1879 | ||
1880 | gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY"); | |
1881 | gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY"); | |
1882 | ||
1883 | ||
1884 | // put the wheel into the TPC | |
1885 | ||
1886 | gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY"); | |
1887 | gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY"); | |
1888 | ||
1889 | gMC->Gsord("TPMW",6); | |
d4c354b9 | 1890 | if(fSecAL >=0) gMC->Gsord("TPLS",3); |
1891 | if(fSecAU >=0 && fSens >0) gMC->Gsord("TPUS",3); | |
37831078 | 1892 | gMC->Gsord("TDGN",6); |
1893 | gMC->Gsord("TSSW",6); | |
1894 | gMC->Gsord("TSWC",6); | |
1895 | ||
1896 | // put the TPC into ALIC (main mother volume) | |
1897 | ||
1898 | gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY"); | |
1899 | ||
1900 | } // end of function | |
1901 | ||
1902 | //_____________________________________________________________________________ | |
1903 | void AliTPCv2::DrawDetector() | |
1904 | { | |
1905 | // | |
1906 | // Draw a shaded view of the Time Projection Chamber version 1 | |
1907 | // | |
1908 | ||
1909 | // Set everything unseen | |
1910 | gMC->Gsatt("*", "seen", -1); | |
1911 | // | |
1912 | // Set ALIC mother transparent | |
1913 | gMC->Gsatt("ALIC","SEEN",0); | |
1914 | // | |
1915 | // Set the volumes visible | |
1916 | // | |
1917 | ||
1918 | gMC->Gsatt("TPC ","SEEN",0); | |
1919 | gMC->Gsatt("TOIN","SEEN",1); | |
1920 | gMC->Gsatt("TOIN","COLO",7); | |
1921 | gMC->Gsatt("TPCR","SEEN",0); | |
1922 | gMC->Gsatt("TOCV","SEEN",1); | |
1923 | gMC->Gsatt("TOCV","COLO",4); | |
1924 | gMC->Gsatt("TSA1","SEEN",0); | |
1925 | gMC->Gsatt("TSA2","SEEN",0); | |
1926 | gMC->Gsatt("TSA3","SEEN",0); | |
1927 | gMC->Gsatt("TSA4","SEEN",0); | |
1928 | gMC->Gsatt("TOFC","SEEN",1); | |
1929 | gMC->Gsatt("TOFC","COLO",4); | |
1930 | gMC->Gsatt("TSA5","SEEN",0); | |
1931 | gMC->Gsatt("TSA6","SEEN",0); | |
1932 | gMC->Gsatt("TSA7","SEEN",0); | |
37831078 | 1933 | gMC->Gsatt("TIIN","COLO",7); |
1934 | gMC->Gsatt("TIIN","SEEN",1); | |
1935 | gMC->Gsatt("TICL","SEEN",0); | |
1936 | gMC->Gsatt("TSA9","SEEN",0); | |
1937 | gMC->Gsatt("TS10","SEEN",0); | |
1938 | gMC->Gsatt("TS11","SEEN",0); | |
1939 | gMC->Gsatt("TS12","SEEN",0); | |
1940 | gMC->Gsatt("TICR","SEEN",0); | |
1941 | gMC->Gsatt("TS13","SEEN",0); | |
1942 | gMC->Gsatt("TS14","SEEN",0); | |
1943 | gMC->Gsatt("TS15","SEEN",0); | |
1944 | gMC->Gsatt("TS16","SEEN",0); | |
1945 | gMC->Gsatt("TIFC","SEEN",1); | |
1946 | gMC->Gsatt("TIFC","COLO",4); | |
1947 | gMC->Gsatt("TS17","SEEN",0); | |
1948 | gMC->Gsatt("TS18","SEEN",0); | |
1949 | gMC->Gsatt("TS19","SEEN",0); | |
37831078 | 1950 | gMC->Gsatt("TS21","SEEN",0); |
1951 | gMC->Gsatt("TS22","SEEN",0); | |
1952 | gMC->Gsatt("TS23","SEEN",0); | |
1953 | gMC->Gsatt("TS24","SEEN",0); | |
1954 | gMC->Gsatt("TDGN","SEEN",0); | |
1955 | gMC->Gsatt("TIRC","SEEN",0); | |
1956 | gMC->Gsatt("TIC1","SEEN",1); | |
1957 | gMC->Gsatt("TIPP","SEEN",0); | |
1958 | gMC->Gsatt("TIC3","SEEN",0); | |
1959 | gMC->Gsatt("TRCE","SEEN",0); | |
1960 | gMC->Gsatt("TPSC","SEEN",0); | |
1961 | gMC->Gsatt("TPCC","SEEN",0); | |
1962 | gMC->Gsatt("TORC","SEEN",0); | |
1963 | gMC->Gsatt("TOPP","SEEN",0); | |
1964 | gMC->Gsatt("TOC3","SEEN",0); | |
1965 | gMC->Gsatt("TOC1","SEEN",1); | |
1966 | gMC->Gsatt("TSSW","SEEN",1); | |
1967 | gMC->Gsatt("TSWC","SEEN",1); | |
1968 | gMC->Gsatt("TSCE","SEEN",1); | |
1969 | gMC->Gsatt("TSSW","COLO",3); | |
1970 | gMC->Gsatt("TSWC","COLO",3); | |
1971 | gMC->Gsatt("TSCE","COLO",6); | |
1972 | gMC->Gsatt("TWES","SEEN",0); | |
1973 | gMC->Gsatt("TSWB","SEEN",0); | |
1974 | gMC->Gsatt("TPEL","SEEN",0); | |
1975 | gMC->Gsatt("TPMW","SEEN",1); | |
1976 | gMC->Gsatt("TPEW","SEEN",1); | |
1977 | gMC->Gsatt("TESR","SEEN",1); | |
1978 | gMC->Gsatt("TPMW","COLO",12); | |
1979 | gMC->Gsatt("TPEW","COLO",12); | |
1980 | gMC->Gsatt("TWES","COLO",5); | |
1981 | gMC->Gsatt("TIC1","COLO",5); | |
1982 | gMC->Gsatt("TOC1","COLO",5); | |
1983 | gMC->Gsatt("TESB","SEEN",0); | |
1984 | gMC->Gsatt("TPLS","SEEN",0); | |
1985 | gMC->Gsatt("TPUS","SEEN",0); | |
1986 | gMC->Gsatt("TPSS","SEEN",0); | |
1987 | gMC->Gsatt("THVM","SEEN",1); | |
1988 | gMC->Gsatt("THVM","COLO",11); | |
1989 | gMC->Gsatt("TPSR","SEEN",0); | |
1990 | gMC->Gsatt("THVL","SEEN",0); | |
1991 | gMC->Gsatt("THVC","SEEN",0); | |
1992 | gMC->Gsatt("THVE","SEEN",0); | |
1993 | gMC->Gsatt("THVR","SEEN",0); | |
1994 | ||
1995 | // | |
1996 | gMC->Gdopt("hide", "on"); | |
1997 | gMC->Gdopt("shad", "on"); | |
1998 | gMC->Gsatt("*", "fill", 7); | |
1999 | gMC->SetClipBox("."); | |
2000 | gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.); | |
2001 | gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.); | |
2002 | gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.); | |
2003 | gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.); | |
2004 | gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290); | |
2005 | gMC->DefaultRange(); | |
2006 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
2007 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
2008 | gMC->Gdman(18, 4, "MAN"); | |
2009 | gMC->Gdopt("hide","off"); | |
2010 | } | |
2011 | ||
2012 | //_____________________________________________________________________________ | |
2013 | void AliTPCv2::CreateMaterials() | |
2014 | { | |
2015 | // | |
2016 | // Define materials for version 2 of the Time Projection Chamber | |
2017 | // | |
2018 | ||
2019 | AliTPC::CreateMaterials(); | |
2020 | } | |
2021 | ||
2022 | //_____________________________________________________________________________ | |
2023 | void AliTPCv2::Init() | |
2024 | { | |
2025 | // | |
2026 | // Initialises version 2 of the TPC after that it has been built | |
2027 | // | |
2028 | ||
2029 | Int_t *idtmed = fIdtmed->GetArray(); | |
2030 | ||
2031 | AliTPC::Init(); | |
d4c354b9 | 2032 | |
2033 | ||
2034 | ||
2035 | fIdSens=gMC->VolId("TPSS"); | |
2036 | ||
2037 | fIdLSec=gMC->VolId("TPLS"); // lower sector | |
37831078 | 2038 | fIdUSec=gMC->VolId("TPUS"); // upper sector |
2039 | ||
2040 | gMC->SetMaxNStep(30000); // max. number of steps increased | |
2041 | ||
2042 | gMC->Gstpar(idtmed[2],"LOSS",5); // specific energy loss | |
2043 | ||
2044 | printf("*** TPC version 2 initialized ***\n"); | |
2045 | printf("Maximum number of steps = %d\n",gMC->GetMaxNStep()); | |
2046 | ||
2047 | // | |
fe4da5cc | 2048 | |
2049 | } | |
2050 | ||
2051 | //_____________________________________________________________________________ | |
2052 | void AliTPCv2::StepManager() | |
2053 | { | |
2054 | // | |
2055 | // Called for every step in the Time Projection Chamber | |
2056 | // | |
2057 | ||
2058 | // | |
2059 | // parameters used for the energy loss calculations | |
2060 | // | |
73042f01 | 2061 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
2062 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
2063 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
fe4da5cc | 2064 | |
2065 | ||
73042f01 | 2066 | const Float_t kbig = 1.e10; |
fe4da5cc | 2067 | |
2068 | Int_t id,copy; | |
2069 | Float_t hits[4]; | |
2070 | Int_t vol[2]; | |
37831078 | 2071 | TLorentzVector p; |
fe4da5cc | 2072 | |
37831078 | 2073 | vol[1]=0; // preset row number to 0 |
fe4da5cc | 2074 | |
2075 | // | |
2076 | ||
73042f01 | 2077 | gMC->SetMaxStep(kbig); |
fe4da5cc | 2078 | |
0a6d8768 | 2079 | if(!gMC->IsTrackAlive()) return; // particle has disappeared |
fe4da5cc | 2080 | |
cfce8870 | 2081 | Float_t charge = gMC->TrackCharge(); |
fe4da5cc | 2082 | |
2083 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
2084 | ||
37831078 | 2085 | // check the sensitive volume |
2086 | ||
2087 | id = gMC->CurrentVolID(copy); // current volume Id | |
2088 | ||
2089 | if(id == fIdLSec){ | |
2090 | vol[0] = copy-1; // lower sector number | |
2091 | } | |
2092 | else if(id == fIdUSec){ | |
2093 | vol[0] = copy+fTPCParam->GetNInnerSector()-1; // upper sector number | |
2094 | } | |
2095 | else if(id == fIdSens && gMC->IsTrackEntering()){ | |
2096 | ||
2097 | // track is entering the sensitive strip | |
2098 | ||
2099 | vol[1]= copy-1; // row number (absolute) | |
2100 | ||
2101 | // sector type | |
2102 | ||
2103 | id = gMC->CurrentVolOffID(1,copy); | |
2104 | ||
2105 | if(id == fIdLSec){ | |
2106 | ||
2107 | // lower sector | |
2108 | ||
2109 | vol[0] = copy-1; // sector number | |
2110 | ||
fe4da5cc | 2111 | } |
37831078 | 2112 | else { |
2113 | ||
2114 | // upper sector | |
2115 | ||
2116 | vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number | |
6a905708 | 2117 | vol[1] -= fTPCParam->GetNRowLow(); // row number (starts also from 0) |
37831078 | 2118 | |
2119 | } | |
2120 | ||
2121 | if(vol[1] == 0){ | |
2122 | ||
2123 | // because Jouri wants to have this | |
2124 | ||
2125 | gMC->TrackMomentum(p); | |
2126 | hits[0]=p[0]; | |
2127 | hits[1]=p[1]; | |
2128 | hits[2]=p[2]; | |
fe4da5cc | 2129 | hits[3]=0.; // this hit has no energy loss |
6a905708 | 2130 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2131 | ||
2132 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
37831078 | 2133 | |
930ee558 | 2134 | } |
37831078 | 2135 | |
930ee558 | 2136 | gMC->TrackPosition(p); |
2137 | hits[0]=p[0]; | |
2138 | hits[1]=p[1]; | |
2139 | hits[2]=p[2]; | |
2140 | hits[3]=0.; // this hit has no energy loss | |
6a905708 | 2141 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2142 | ||
2143 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
930ee558 | 2144 | |
37831078 | 2145 | } |
fe4da5cc | 2146 | else return; |
37831078 | 2147 | |
2148 | //----------------------------------------------------------------- | |
fe4da5cc | 2149 | // charged particle is in the sensitive volume |
37831078 | 2150 | //----------------------------------------------------------------- |
fe4da5cc | 2151 | |
cfce8870 | 2152 | if(gMC->TrackStep() > 0) { |
fe4da5cc | 2153 | |
73042f01 | 2154 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
fe4da5cc | 2155 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
2156 | ||
37831078 | 2157 | gMC->TrackPosition(p); |
2158 | hits[0]=p[0]; | |
2159 | hits[1]=p[1]; | |
2160 | hits[2]=p[2]; | |
fe4da5cc | 2161 | hits[3]=(Float_t)nel; |
2162 | ||
2163 | // Add this hit | |
2164 | ||
6a905708 | 2165 | // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
2166 | if (fHitType&&2){ | |
2167 | gMC->TrackMomentum(p); | |
2168 | Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
2169 | Float_t precision = (momentum>0.1) ? 0.002 :0.01; | |
2170 | fTrackHits->SetHitPrecision(precision); | |
2171 | } | |
2172 | AddHit(gAlice->CurrentTrack(), vol,hits); //MI change | |
fe4da5cc | 2173 | |
2174 | } | |
2175 | ||
2176 | // Stemax calculation for the next step | |
2177 | ||
2178 | Float_t pp; | |
0a6d8768 | 2179 | TLorentzVector mom; |
2180 | gMC->TrackMomentum(mom); | |
2181 | Float_t ptot=mom.Rho(); | |
73042f01 | 2182 | Float_t betaGamma = ptot/gMC->TrackMass(); |
fe4da5cc | 2183 | |
69e40cce | 2184 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 2185 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
fe4da5cc | 2186 | { |
73042f01 | 2187 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
fe4da5cc | 2188 | } |
2189 | else | |
2190 | { | |
73042f01 | 2191 | pp=kprim*BetheBloch(betaGamma); |
fe4da5cc | 2192 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
2193 | } | |
2194 | ||
2195 | Float_t random[1]; | |
cfce8870 | 2196 | gMC->Rndm(random,1); // good, old GRNDM from Geant3 |
fe4da5cc | 2197 | |
2198 | Double_t rnd = (Double_t)random[0]; | |
2199 | ||
cfce8870 | 2200 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); |
fe4da5cc | 2201 | |
2202 | } | |
2203 | ||
2204 | //_____________________________________________________________________________ | |
2205 | Float_t AliTPCv2::BetheBloch(Float_t bg) | |
2206 | { | |
2207 | // | |
2208 | // Bethe-Bloch energy loss formula | |
2209 | // | |
73042f01 | 2210 | const Double_t kp1=0.76176e-1; |
2211 | const Double_t kp2=10.632; | |
2212 | const Double_t kp3=0.13279e-4; | |
2213 | const Double_t kp4=1.8631; | |
2214 | const Double_t kp5=1.9479; | |
fe4da5cc | 2215 | |
2216 | Double_t dbg = (Double_t) bg; | |
2217 | ||
2218 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
2219 | ||
73042f01 | 2220 | Double_t aa = TMath::Power(beta,kp4); |
2221 | Double_t bb = TMath::Power(1./dbg,kp5); | |
fe4da5cc | 2222 | |
73042f01 | 2223 | bb=TMath::Log(kp3+bb); |
fe4da5cc | 2224 | |
73042f01 | 2225 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); |
fe4da5cc | 2226 | } |
73042f01 | 2227 | |
2228 |