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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 | $Log$ | |
d4c354b9 | 18 | Revision 1.25 2000/10/02 21:28:18 fca |
19 | Removal of useless dependecies via forward declarations | |
20 | ||
94de3818 | 21 | Revision 1.24 2000/08/28 10:02:30 kowal2 |
22 | Corrected bug in the StepManager | |
23 | ||
930ee558 | 24 | Revision 1.23 2000/07/10 20:57:39 hristov |
25 | Update of TPC code and macros by M.Kowalski | |
26 | ||
37831078 | 27 | Revision 1.22 2000/06/30 12:07:50 kowal2 |
28 | Updated from the TPC-PreRelease branch | |
29 | ||
73042f01 | 30 | Revision 1.21.2.4 2000/06/26 07:39:42 kowal2 |
31 | Changes to obey the coding rules | |
32 | ||
33 | Revision 1.21.2.3 2000/06/25 08:38:41 kowal2 | |
34 | Splitted from AliTPCtracking | |
35 | ||
36 | Revision 1.21.2.2 2000/06/16 12:58:13 kowal2 | |
37 | Changed parameter settings | |
38 | ||
39 | Revision 1.21.2.1 2000/06/09 07:15:07 kowal2 | |
40 | ||
41 | Defaults loaded automatically (hard-wired) | |
42 | Optional parameters can be set via macro called in the constructor | |
43 | ||
44 | Revision 1.21 2000/05/15 10:00:30 kowal2 | |
45 | Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova | |
46 | ||
e94dd9ca | 47 | Revision 1.20 2000/04/17 09:37:33 kowal2 |
48 | removed obsolete AliTPCDigitsDisplay.C | |
49 | ||
cc80f89e | 50 | Revision 1.19.8.2 2000/04/10 08:31:52 kowal2 |
51 | ||
52 | Different geometry for different sectors | |
53 | Updated readout chambers | |
54 | Some modifications to StepManager by J.Belikov | |
55 | ||
56 | Revision 1.19.8.1 2000/04/10 07:56:53 kowal2 | |
57 | Not used anymore - removed | |
58 | ||
59 | Revision 1.19 1999/11/04 17:28:07 fca | |
60 | Correct barrel part of HV Degrader | |
61 | ||
a5371c42 | 62 | Revision 1.18 1999/10/14 16:52:08 fca |
63 | Only use PDG codes and not GEANT ones | |
64 | ||
69e40cce | 65 | Revision 1.17 1999/10/08 06:27:23 fca |
66 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
67 | ||
d183a600 | 68 | Revision 1.16 1999/10/04 13:39:54 fca |
69 | Correct array index problem | |
70 | ||
cdde5b1e | 71 | Revision 1.15 1999/09/29 09:24:34 fca |
72 | Introduction of the Copyright and cvs Log | |
73 | ||
4c039060 | 74 | */ |
75 | ||
73042f01 | 76 | // |
fe4da5cc | 77 | /////////////////////////////////////////////////////////////////////////////// |
78 | // // | |
79 | // Time Projection Chamber version 2 -- detailed TPC and slow simulation // | |
80 | // // | |
81 | //Begin_Html | |
82 | /* | |
1439f98e | 83 | <img src="picts/AliTPCv2Class.gif"> |
fe4da5cc | 84 | */ |
85 | //End_Html | |
86 | // // | |
87 | // // | |
88 | /////////////////////////////////////////////////////////////////////////////// | |
2a49965d | 89 | #include <stdlib.h> |
fe4da5cc | 90 | |
91 | #include <TMath.h> | |
bcac8ae4 | 92 | |
fe4da5cc | 93 | #include "AliTPCv2.h" |
cc80f89e | 94 | #include "AliTPCDigitsArray.h" |
fe4da5cc | 95 | #include "AliRun.h" |
94de3818 | 96 | #include "AliMC.h" |
fe4da5cc | 97 | #include "AliConst.h" |
69e40cce | 98 | #include "AliPDG.h" |
73042f01 | 99 | #include "AliTPCParam.h" |
100 | #include "AliTPCParamSR.h" | |
8c555625 | 101 | |
fe4da5cc | 102 | ClassImp(AliTPCv2) |
103 | ||
104 | //_____________________________________________________________________________ | |
105 | AliTPCv2::AliTPCv2(const char *name, const char *title) : | |
106 | AliTPC(name, title) | |
107 | { | |
108 | // | |
109 | // Standard constructor for Time Projection Chamber version 2 | |
110 | // | |
37831078 | 111 | fIdSens=0; |
112 | fIdLSec=0; | |
113 | fIdUSec=0; | |
114 | ||
fe4da5cc | 115 | SetBufferSize(128000); |
73042f01 | 116 | |
117 | SetGasMixt(2,20,10,-1,0.9,0.1,0.); // Ne-CO2 90-10 | |
118 | ||
119 | // Default sectors | |
120 | ||
121 | SetSecAL(4); | |
122 | SetSecAU(4); | |
123 | SetSecLows(1, 2, 3, 19, 20, 21); | |
124 | SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1); | |
37831078 | 125 | SetSens(1); // sensitive strips set |
73042f01 | 126 | |
127 | if (fTPCParam) | |
128 | fTPCParam->Write(fTPCParam->GetTitle()); | |
fe4da5cc | 129 | } |
130 | ||
131 | //_____________________________________________________________________________ | |
132 | void AliTPCv2::CreateGeometry() | |
133 | { | |
134 | // | |
135 | // Create the geometry of Time Projection Chamber version 2 | |
136 | // | |
137 | //Begin_Html | |
138 | /* | |
37831078 | 139 | <img src="picts/AliTPC.gif"> |
fe4da5cc | 140 | */ |
141 | //End_Html | |
142 | //Begin_Html | |
143 | /* | |
1439f98e | 144 | <img src="picts/AliTPCv2Tree.gif"> |
fe4da5cc | 145 | */ |
146 | //End_Html | |
147 | ||
8c555625 | 148 | |
1283eee5 | 149 | Int_t *idtmed = fIdtmed->GetArray(); |
150 | ||
37831078 | 151 | Float_t dm[50]; |
62a73ee5 | 152 | Int_t idrotm[120]; |
1283eee5 | 153 | |
154 | Int_t nRotMat = 0; | |
155 | ||
d4c354b9 | 156 | Int_t i,ifl1=0; |
1283eee5 | 157 | |
37831078 | 158 | // number of sectors |
159 | ||
1283eee5 | 160 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; |
161 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
fe4da5cc | 162 | |
163 | // --------------------------------------------------- | |
164 | // sector specification check | |
165 | // --------------------------------------------------- | |
166 | if (fSecAL >= 0) { | |
167 | ifl1 = 0; | |
168 | ||
169 | for (i = 0; i < 6; ++i) { | |
1283eee5 | 170 | if (fSecLows[i] >= 0 && fSecLows[i] < 2*nInnerSector) { |
fe4da5cc | 171 | ifl1 = 1; |
172 | printf("*** SECTOR %d selected\n",fSecLows[i]); | |
173 | } | |
174 | } | |
175 | ||
176 | } else { | |
177 | printf("*** ALL LOWER SECTORS SELECTED ***\n"); | |
8c555625 | 178 | ifl1 = 1; |
fe4da5cc | 179 | } |
180 | ||
d4c354b9 | 181 | if (ifl1 == 0) { |
182 | printf("*** ERROR: AT LEAST ONE LOWER SECTOR MUST BE SPECIFIED ***\n"); | |
183 | printf("!!! PROGRAM STOPPED !!!\n"); | |
184 | exit(1); | |
185 | } | |
186 | ||
fe4da5cc | 187 | if (fSecAU >= 0) { |
fe4da5cc | 188 | |
189 | for (i = 0; i < 12; ++i) { | |
1283eee5 | 190 | if (fSecUps[i] > 2*nInnerSector-1 && |
191 | fSecUps[i] < 2*(nInnerSector+nOuterSector)) { | |
fe4da5cc | 192 | printf("*** SECTOR %d selected\n",fSecUps[i]); |
193 | } | |
194 | } | |
195 | ||
196 | } else { | |
197 | printf("*** ALL UPPER SECTORS SELECTED ***\n"); | |
198 | } | |
199 | ||
d4c354b9 | 200 | |
37831078 | 201 | |
202 | //-------------------------------------------------------------------- | |
203 | ||
204 | // | |
205 | // Mother volume (Air) - all volumes will be positioned in it | |
206 | // | |
1283eee5 | 207 | |
37831078 | 208 | dm[0]=0.; |
209 | dm[1]=360.; | |
210 | dm[2]=12.; | |
1283eee5 | 211 | |
37831078 | 212 | // |
213 | ||
214 | dm[3]= -283.7; | |
215 | dm[4]= 66.2; | |
216 | dm[5]= 277.95; | |
1283eee5 | 217 | |
37831078 | 218 | // |
1283eee5 | 219 | |
37831078 | 220 | dm[6]= -255.6; |
221 | dm[7]= 66.2; | |
222 | dm[8]= 277.95; | |
1283eee5 | 223 | |
37831078 | 224 | // |
1283eee5 | 225 | |
37831078 | 226 | dm[9]= -73.3; |
227 | dm[10]= 59.0; | |
228 | dm[11]= 277.95; | |
1283eee5 | 229 | |
37831078 | 230 | // |
1283eee5 | 231 | |
37831078 | 232 | dm[12]= -73.3; |
233 | dm[13]= 56.9; | |
234 | dm[14]= 277.95; | |
1283eee5 | 235 | |
37831078 | 236 | // |
1283eee5 | 237 | |
37831078 | 238 | dm[15]= -72.1; |
239 | dm[16]= 56.9; | |
240 | dm[17]= 277.95; | |
1283eee5 | 241 | |
37831078 | 242 | // |
1283eee5 | 243 | |
37831078 | 244 | dm[18]= -72.1; |
245 | dm[19]= 60.65; | |
246 | dm[20]= 277.95; | |
1283eee5 | 247 | |
37831078 | 248 | // |
1283eee5 | 249 | |
37831078 | 250 | dm[21]= 72.1; |
251 | dm[22]= 60.65; | |
252 | dm[23]= 277.95; | |
1283eee5 | 253 | |
37831078 | 254 | // |
1283eee5 | 255 | |
37831078 | 256 | dm[24]= 72.1; |
257 | dm[25]= 56.9; | |
258 | dm[26]= 277.95; | |
1283eee5 | 259 | |
37831078 | 260 | // |
1283eee5 | 261 | |
37831078 | 262 | dm[27]= 73.3; |
263 | dm[28]= 56.9; | |
264 | dm[29]= 277.95; | |
1283eee5 | 265 | |
37831078 | 266 | // |
1283eee5 | 267 | |
37831078 | 268 | dm[30]= 73.3; |
269 | dm[31]= 60.65; | |
270 | dm[32]= 277.95; | |
1283eee5 | 271 | |
37831078 | 272 | // |
1283eee5 | 273 | |
37831078 | 274 | dm[33]= 250.4; |
275 | dm[34]= 66.0; | |
276 | dm[35]= 277.95; | |
1283eee5 | 277 | |
37831078 | 278 | // |
1283eee5 | 279 | |
37831078 | 280 | dm[36]= 283.7; |
281 | dm[37]= 66.0; | |
282 | dm[38]= 277.95; | |
1283eee5 | 283 | |
1283eee5 | 284 | |
37831078 | 285 | gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39); |
1283eee5 | 286 | |
1283eee5 | 287 | |
37831078 | 288 | //------------------------------------------------------------------- |
289 | // Tpc Outer INsulator (CO2) | |
290 | //------------------------------------------------------------------- | |
1283eee5 | 291 | |
37831078 | 292 | dm[0]= 0.; |
293 | dm[1]= 360.; | |
294 | dm[2]= 6.; | |
1283eee5 | 295 | |
37831078 | 296 | // |
297 | ||
298 | dm[3]= -253.6; | |
299 | dm[4]= 258.; | |
300 | dm[5]= 266.65; | |
1283eee5 | 301 | |
37831078 | 302 | // |
1283eee5 | 303 | |
37831078 | 304 | dm[6]= -253.; |
305 | dm[7]= 258.; | |
306 | dm[8]= 266.65; | |
1283eee5 | 307 | |
37831078 | 308 | dm[9]= -253.; |
309 | dm[10]= 258.; | |
310 | dm[11]= 277.97; | |
1283eee5 | 311 | |
37831078 | 312 | dm[12]= 253.6; |
313 | dm[13]= 258.; | |
314 | dm[14]= 277.97; | |
1283eee5 | 315 | |
37831078 | 316 | // |
1283eee5 | 317 | |
37831078 | 318 | dm[15]= 253.6; |
319 | dm[16]= 265.2; | |
320 | dm[17]= 277.95; | |
1283eee5 | 321 | |
37831078 | 322 | // |
cc80f89e | 323 | |
37831078 | 324 | dm[18]= 255.6; |
325 | dm[19]= 265.2; | |
326 | dm[20]= 277.95; | |
1283eee5 | 327 | |
1283eee5 | 328 | |
37831078 | 329 | gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21); |
1283eee5 | 330 | |
37831078 | 331 | //--------------------------------------------------------------- |
332 | // shreds (G10) - TPC Rings | |
333 | //--------------------------------------------------------------- | |
1283eee5 | 334 | |
37831078 | 335 | gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0); |
1283eee5 | 336 | |
37831078 | 337 | dm[0]= 258.; |
338 | dm[1]= 266.65; | |
339 | dm[2]= 0.3; | |
1283eee5 | 340 | |
37831078 | 341 | gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom |
1283eee5 | 342 | |
37831078 | 343 | // |
1283eee5 | 344 | |
37831078 | 345 | dm[0]= 258.; |
346 | dm[1]= 270.9; | |
347 | dm[2]= 0.3; | |
1283eee5 | 348 | |
37831078 | 349 | gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right |
1283eee5 | 350 | |
37831078 | 351 | // |
1283eee5 | 352 | |
37831078 | 353 | dm[0]= 272.2; |
354 | dm[1]= 277.95; | |
355 | dm[2]= 0.3; | |
1283eee5 | 356 | |
37831078 | 357 | gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top |
1283eee5 | 358 | |
37831078 | 359 | //---------------------------------------------------------------- |
360 | // Tpc Outer Contaiment Vessel | |
361 | // mother volume - Al, daughters - composite (sandwich) | |
362 | //---------------------------------------------------------------- | |
363 | ||
364 | dm[0]= 0.; | |
365 | dm[1]= 360.; | |
366 | dm[2]=5.; | |
1283eee5 | 367 | |
37831078 | 368 | // |
cc80f89e | 369 | |
37831078 | 370 | dm[3]= -250.4; |
371 | dm[4]= 272.2; | |
372 | dm[5]= 277.95; | |
1283eee5 | 373 | |
37831078 | 374 | // |
1283eee5 | 375 | |
37831078 | 376 | dm[6]= -248.4; |
377 | dm[7]= 272.2; | |
378 | dm[8]= 277.95; | |
1283eee5 | 379 | |
37831078 | 380 | // |
1283eee5 | 381 | |
37831078 | 382 | dm[9]= 253.6; |
383 | dm[10]= 272.2; | |
384 | dm[11]= 277.95; | |
1283eee5 | 385 | |
37831078 | 386 | // |
1283eee5 | 387 | |
37831078 | 388 | dm[12]= 253.6; |
389 | dm[13]= 265.2; | |
390 | dm[14]= 277.95; | |
1283eee5 | 391 | |
37831078 | 392 | // |
1283eee5 | 393 | |
37831078 | 394 | dm[15]= 255.6; |
395 | dm[16]= 265.2; | |
396 | dm[17]= 277.95; | |
1283eee5 | 397 | |
37831078 | 398 | gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,18); |
1283eee5 | 399 | |
37831078 | 400 | // Daughter volumes |
1283eee5 | 401 | |
37831078 | 402 | // Tpc SAndwich 1 - Al |
403 | ||
404 | dm[0]= 274.81; | |
405 | dm[1]= 277.95; | |
406 | dm[2]= 251.7; | |
1283eee5 | 407 | |
37831078 | 408 | gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3); |
1283eee5 | 409 | |
37831078 | 410 | // Tpc SAndwich 2 - Tedlar |
1283eee5 | 411 | |
37831078 | 412 | dm[0] += 5.e-3; |
413 | dm[1] -= 5.e-3; | |
414 | ||
415 | gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3); | |
1283eee5 | 416 | |
37831078 | 417 | // Tpc SAndwich 3 - Kevlar |
8c555625 | 418 | |
37831078 | 419 | dm[0] += 5e-3; |
420 | dm[1] -= 5.e-3; | |
8c555625 | 421 | |
37831078 | 422 | gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3); |
8c555625 | 423 | |
37831078 | 424 | // Tpc SAndwich 4 - NOMEX honeycomb |
1283eee5 | 425 | |
37831078 | 426 | dm[0] += 0.06; |
427 | dm[1] -= 0.06; | |
1283eee5 | 428 | |
37831078 | 429 | gMC->Gsvolu("TSA4","TUBE",idtmed[5],dm,3); |
430 | ||
431 | // 4->3->2->1->TOCV | |
8c555625 | 432 | |
37831078 | 433 | gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY"); |
434 | gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY"); | |
435 | gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY"); | |
fe4da5cc | 436 | |
37831078 | 437 | gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY"); |
fe4da5cc | 438 | |
37831078 | 439 | // TCOV-> TOIN |
fe4da5cc | 440 | |
37831078 | 441 | gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 442 | |
37831078 | 443 | //------------------------------------------------------- |
444 | // Tpc Outer Field Cage | |
445 | // mother volume - Al, daughters - composite (sandwich) | |
446 | //------------------------------------------------------- | |
1283eee5 | 447 | |
37831078 | 448 | dm[0]=0.; |
449 | dm[1]=360.; | |
450 | dm[2]=6.; | |
1283eee5 | 451 | |
37831078 | 452 | dm[3]= -253.; |
453 | dm[4]= 258.; | |
454 | dm[5]= 277.95; | |
1283eee5 | 455 | |
37831078 | 456 | // |
1283eee5 | 457 | |
37831078 | 458 | dm[6]= -251.; |
459 | dm[7]= 258.; | |
460 | dm[8]= 277.95; | |
1283eee5 | 461 | |
37831078 | 462 | // |
463 | ||
464 | dm[9]= -251.; | |
465 | dm[10]= 258.; | |
466 | dm[11]= 260.05; | |
1283eee5 | 467 | |
37831078 | 468 | // |
1283eee5 | 469 | |
37831078 | 470 | dm[12]= 251.; |
471 | dm[13]= 258.; | |
472 | dm[14]= 260.05; | |
1283eee5 | 473 | |
37831078 | 474 | // |
1283eee5 | 475 | |
37831078 | 476 | dm[15]= 251.; |
477 | dm[16]= 258.; | |
478 | dm[17]= 260.05; | |
1283eee5 | 479 | |
37831078 | 480 | // |
1283eee5 | 481 | |
37831078 | 482 | dm[18]= 253.; |
483 | dm[19]= 258.; | |
484 | dm[20]= 270.9; | |
1283eee5 | 485 | |
37831078 | 486 | gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21); |
1283eee5 | 487 | |
37831078 | 488 | // Daughter volumes |
1283eee5 | 489 | |
37831078 | 490 | // Tpc SAndwich 5 - Al |
1283eee5 | 491 | |
37831078 | 492 | dm[0]= 258.; |
493 | dm[1]= 260.05; | |
494 | dm[2]= 251.7; | |
1283eee5 | 495 | |
37831078 | 496 | gMC->Gsvolu("TSA5","TUBE",idtmed[4],dm,3); |
1283eee5 | 497 | |
37831078 | 498 | // Tpc SAndwich 6 - Tedlar |
1283eee5 | 499 | |
37831078 | 500 | dm[0] += 5.e-3; |
501 | dm[1] -= 5.e-3; | |
1283eee5 | 502 | |
37831078 | 503 | gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3); |
1283eee5 | 504 | |
37831078 | 505 | // Tpc SAndwich 7 - Kevlar |
1283eee5 | 506 | |
37831078 | 507 | dm[0] += 5.e-3; |
508 | dm[1] -= 5.e-3; | |
1283eee5 | 509 | |
37831078 | 510 | gMC->Gsvolu("TSA7","TUBE",idtmed[5],dm,3); |
1283eee5 | 511 | |
37831078 | 512 | // Tpc SAndwich 8 - NOMEX |
1283eee5 | 513 | |
37831078 | 514 | dm[0] += 0.02; |
515 | dm[1] -= 0.02; | |
1283eee5 | 516 | |
37831078 | 517 | gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3); |
1283eee5 | 518 | |
37831078 | 519 | // 8->7->6->5->TOFC |
1283eee5 | 520 | |
37831078 | 521 | gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY"); |
522 | gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY"); | |
523 | gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 524 | |
37831078 | 525 | gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY"); |
fe4da5cc | 526 | |
37831078 | 527 | // TOFC->TOIN |
fe4da5cc | 528 | |
37831078 | 529 | gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY"); |
1283eee5 | 530 | |
37831078 | 531 | // TOIN->TPC |
1283eee5 | 532 | |
37831078 | 533 | gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY"); |
1283eee5 | 534 | |
37831078 | 535 | //-------------------------------------------------------------------- |
536 | // Tpc Inner INsulator (CO2) | |
537 | //-------------------------------------------------------------------- | |
1283eee5 | 538 | |
1283eee5 | 539 | |
37831078 | 540 | dm[0]=0.; |
541 | dm[1]= 360.; | |
542 | dm[2]= 15.; | |
1283eee5 | 543 | |
37831078 | 544 | // |
1283eee5 | 545 | |
37831078 | 546 | dm[3]= -255.6; |
547 | dm[4]= 66.2; | |
548 | dm[5]= 74.8; | |
1283eee5 | 549 | |
37831078 | 550 | // |
1283eee5 | 551 | |
37831078 | 552 | Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part |
1283eee5 | 553 | |
37831078 | 554 | dm[6]= -253.6; |
555 | dm[7]= 59.0+ (253.6-73.3)*tanL; | |
556 | dm[8]= 74.8; | |
1283eee5 | 557 | |
37831078 | 558 | // |
1283eee5 | 559 | |
37831078 | 560 | dm[9]= -253.6; |
561 | dm[10]= dm[7]; | |
562 | dm[11]= 79.2; | |
1283eee5 | 563 | |
37831078 | 564 | // |
1283eee5 | 565 | |
37831078 | 566 | dm[12]= -73.3; |
567 | dm[13]= 59.0; | |
568 | dm[14]= 79.2; | |
1283eee5 | 569 | |
37831078 | 570 | // |
1283eee5 | 571 | |
37831078 | 572 | dm[15]= -73.3; |
573 | dm[16]= 56.9; | |
574 | dm[17]= 79.2; | |
1283eee5 | 575 | |
37831078 | 576 | // |
1283eee5 | 577 | |
37831078 | 578 | dm[18]= -72.1; |
579 | dm[19]= 59.6; | |
580 | dm[20]= 79.2; | |
1283eee5 | 581 | |
37831078 | 582 | // |
1283eee5 | 583 | |
37831078 | 584 | dm[21]= -72.1; |
585 | dm[22]= 60.65; | |
586 | dm[23]= 79.2; | |
1283eee5 | 587 | |
37831078 | 588 | // |
1283eee5 | 589 | |
37831078 | 590 | dm[24]= 72.1; |
591 | dm[25]= 60.65; | |
592 | dm[26]= 79.2; | |
1283eee5 | 593 | |
37831078 | 594 | // |
1283eee5 | 595 | |
37831078 | 596 | dm[27]= 72.1; |
597 | dm[28]= 59.6; | |
598 | dm[29]= 79.2; | |
1283eee5 | 599 | |
37831078 | 600 | // |
1283eee5 | 601 | |
37831078 | 602 | dm[30]= 73.3; |
603 | dm[31]= 56.9; | |
604 | dm[32]= 79.2; | |
1283eee5 | 605 | |
37831078 | 606 | // |
1283eee5 | 607 | |
37831078 | 608 | dm[33]= 73.3; |
609 | dm[34]= 59.0; | |
610 | dm[35]= 79.2; | |
1283eee5 | 611 | |
37831078 | 612 | // |
1283eee5 | 613 | |
37831078 | 614 | dm[36]= 250.4; |
615 | dm[37]= 66.0; | |
616 | dm[38]= 79.2; | |
1283eee5 | 617 | |
37831078 | 618 | // |
1283eee5 | 619 | |
37831078 | 620 | dm[39]= 253.0; |
621 | dm[40]= 66.0; | |
622 | dm[41]= 79.2; | |
1283eee5 | 623 | |
37831078 | 624 | // |
1283eee5 | 625 | |
37831078 | 626 | dm[42]= 253.0; |
627 | dm[43]= 75.3; | |
628 | dm[44]= 79.2; | |
1283eee5 | 629 | |
630 | // | |
1283eee5 | 631 | |
37831078 | 632 | dm[45]= 253.6; |
633 | dm[46]= 75.3; | |
634 | dm[47]= 79.2; | |
1283eee5 | 635 | |
37831078 | 636 | gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48); |
1283eee5 | 637 | |
1283eee5 | 638 | |
37831078 | 639 | //-------------------------------------------------------------------- |
640 | // Tpc Inner Containment vessel, Left part | |
641 | // mother volume - Al, daughter - composite (sandwich) | |
642 | //-------------------------------------------------------------------- | |
1283eee5 | 643 | |
37831078 | 644 | dm[0]= 0.; |
645 | dm[1]= 360.; | |
646 | dm[2]= 8.; | |
647 | ||
648 | // | |
649 | ||
650 | dm[3]= -255.6; | |
651 | dm[4]= 66.2; | |
652 | dm[5]= 74.8; | |
1283eee5 | 653 | |
37831078 | 654 | // |
1283eee5 | 655 | |
37831078 | 656 | Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL); |
657 | Float_t sandThick = 2.14; // cone composite thickness | |
1283eee5 | 658 | |
1283eee5 | 659 | |
660 | // | |
37831078 | 661 | |
662 | dm[6]= -253.6; | |
663 | dm[7]= 59.0 + (253.6-73.3)*tanL; | |
664 | dm[8]= 74.8; | |
665 | ||
1283eee5 | 666 | // |
667 | ||
37831078 | 668 | dm[9]= -253.6; |
669 | dm[10]= dm[7]; | |
670 | dm[11]= dm[7]+sandThick/cosL; | |
1283eee5 | 671 | |
37831078 | 672 | // |
1283eee5 | 673 | |
37831078 | 674 | dm[12]= -75.6; |
675 | dm[13]= 59.0+(75.6-73.3)*tanL; | |
676 | dm[14]= dm[13]+sandThick/cosL; | |
1283eee5 | 677 | |
37831078 | 678 | // |
1283eee5 | 679 | |
37831078 | 680 | dm[15]= -75.6; |
681 | dm[16]= dm[13]; | |
682 | dm[17]= 60.65; | |
1283eee5 | 683 | |
37831078 | 684 | // |
1283eee5 | 685 | |
37831078 | 686 | dm[18]= -73.3; |
687 | dm[19]= 59.0; | |
688 | dm[20]= 60.65; | |
1283eee5 | 689 | |
37831078 | 690 | // |
1283eee5 | 691 | |
37831078 | 692 | dm[21]= -73.3; |
693 | dm[22]= 56.9; | |
694 | dm[23]= 60.65; | |
1283eee5 | 695 | |
37831078 | 696 | // |
1283eee5 | 697 | |
37831078 | 698 | dm[24]= -72.1; |
699 | dm[25]= 56.9; | |
700 | dm[26]= 60.65; | |
1283eee5 | 701 | |
37831078 | 702 | gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27); |
1283eee5 | 703 | |
37831078 | 704 | // Daughter volumes |
1283eee5 | 705 | |
37831078 | 706 | // Tpc SAndwich 9 - Al |
1283eee5 | 707 | |
37831078 | 708 | dm[0]= 0.; |
709 | dm[1]= 360.; | |
710 | dm[2]= 2.; | |
1283eee5 | 711 | |
37831078 | 712 | // |
1283eee5 | 713 | |
37831078 | 714 | dm[3]= - 254.3; |
715 | dm[4]= 59.0+(254.3-73.3)*tanL; | |
716 | dm[5]= dm[4]+sandThick/cosL; | |
1283eee5 | 717 | |
37831078 | 718 | // |
1283eee5 | 719 | |
37831078 | 720 | dm[6]= -78.3; |
721 | dm[7]= 59.0+(78.3-73.3)*tanL; | |
722 | dm[8]= dm[7]+sandThick/cosL; | |
1283eee5 | 723 | |
37831078 | 724 | // |
1283eee5 | 725 | |
37831078 | 726 | gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9); |
1283eee5 | 727 | |
37831078 | 728 | // Tpc SAndwich 10 - Tedlar |
1283eee5 | 729 | |
37831078 | 730 | dm[4]+= 5.e-3/cosL; |
731 | dm[5]-= 5.e-3/cosL; | |
1283eee5 | 732 | |
37831078 | 733 | // |
1283eee5 | 734 | |
37831078 | 735 | dm[7]+= 5.e-3/cosL; |
736 | dm[8]+= 5.e-3/cosL; | |
1283eee5 | 737 | |
37831078 | 738 | gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9); |
1283eee5 | 739 | |
37831078 | 740 | // Tpc SAndwich 11 - Kevlar |
1283eee5 | 741 | |
37831078 | 742 | dm[4]+= 5.e-3/cosL; |
743 | dm[5]-= 5.e-3/cosL; | |
1283eee5 | 744 | |
37831078 | 745 | // |
1283eee5 | 746 | |
37831078 | 747 | dm[7]+= 5.e-3/cosL; |
748 | dm[8]+= 5.e-3/cosL; | |
1283eee5 | 749 | |
37831078 | 750 | gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9); |
1283eee5 | 751 | |
37831078 | 752 | // Tpc SAndwich 12 - NOMEX |
1283eee5 | 753 | |
37831078 | 754 | dm[4]+= 0.06/cosL; |
755 | dm[5]-= 0.06/cosL; | |
1283eee5 | 756 | |
37831078 | 757 | // |
1283eee5 | 758 | |
37831078 | 759 | dm[7]+= 0.06/cosL; |
760 | dm[8]+= 0.06/cosL; | |
1283eee5 | 761 | |
37831078 | 762 | gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9); |
1283eee5 | 763 | |
37831078 | 764 | // 12->11->10->9 |
1283eee5 | 765 | |
37831078 | 766 | gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY"); |
767 | gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY"); | |
768 | gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 769 | |
37831078 | 770 | // TSA9->TICL |
771 | ||
772 | gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 773 | |
37831078 | 774 | //-------------------------------------------------------------------- |
775 | // Tpc Inner Containment vessel, Right part | |
776 | // mother volume - Al, daughter - composite (sandwich) | |
777 | //-------------------------------------------------------------------- | |
1283eee5 | 778 | |
37831078 | 779 | dm[0]= 0.; |
780 | dm[1]= 360.; | |
781 | dm[2]=8.; | |
1283eee5 | 782 | |
37831078 | 783 | // |
1283eee5 | 784 | |
37831078 | 785 | dm[3]= 72.1; |
786 | dm[4]= 56.9; | |
787 | dm[5]= 60.65; | |
1283eee5 | 788 | |
37831078 | 789 | // |
1283eee5 | 790 | |
37831078 | 791 | dm[6]= 73.3; |
792 | dm[7]= 56.9; | |
793 | dm[8]= 60.65; | |
1283eee5 | 794 | |
37831078 | 795 | // |
1283eee5 | 796 | |
37831078 | 797 | dm[9]= 73.3; |
798 | dm[10]= 59.0; | |
799 | dm[11]= 60.65; | |
1283eee5 | 800 | |
37831078 | 801 | // |
1283eee5 | 802 | |
37831078 | 803 | Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems |
804 | Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above | |
1283eee5 | 805 | |
37831078 | 806 | // |
1283eee5 | 807 | |
37831078 | 808 | dm[12]= 75.6; |
809 | dm[13]= 59.0+(75.6-73.3)*tanR; | |
810 | dm[14]= 60.65; | |
1283eee5 | 811 | |
37831078 | 812 | // |
1283eee5 | 813 | |
37831078 | 814 | dm[15]= 75.6; |
815 | dm[16]= dm[13]; | |
816 | dm[17]= dm[16]+sandThick/cosR; | |
1283eee5 | 817 | |
37831078 | 818 | // |
1283eee5 | 819 | |
37831078 | 820 | dm[18]= 248.4; |
821 | dm[19]= 59.0+(248.4-73.3)*tanR; | |
822 | dm[20]= dm[19]+sandThick/cosR; | |
1283eee5 | 823 | |
37831078 | 824 | // |
1283eee5 | 825 | |
37831078 | 826 | dm[21]= 248.4; |
827 | dm[22]= dm[19]; | |
828 | dm[23]= 70.2; | |
1283eee5 | 829 | |
37831078 | 830 | // |
1283eee5 | 831 | |
37831078 | 832 | dm[24]= 250.4; |
833 | dm[25]= 66.0; | |
834 | dm[26]= 70.2; | |
1283eee5 | 835 | |
37831078 | 836 | gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27); |
1283eee5 | 837 | |
1283eee5 | 838 | |
1283eee5 | 839 | |
37831078 | 840 | // Daughter volumes |
1283eee5 | 841 | |
37831078 | 842 | // Tpc SAndwich 13 - Al |
1283eee5 | 843 | |
37831078 | 844 | dm[0]= 0.; |
845 | dm[1]= 360.; | |
846 | dm[2]= 2.; | |
1283eee5 | 847 | |
37831078 | 848 | // |
1283eee5 | 849 | |
37831078 | 850 | dm[3]= 78.3; |
851 | dm[4]= 59.0+(78.3-73.3)*tanR; | |
852 | dm[5]= dm[4]+sandThick/cosR; | |
1283eee5 | 853 | |
37831078 | 854 | // |
1283eee5 | 855 | |
37831078 | 856 | dm[6]= 249.1; |
857 | dm[7]= 59.0+(249.1-73.3)*tanR; | |
858 | dm[8]= dm[7]+sandThick/cosR; | |
1283eee5 | 859 | |
37831078 | 860 | // |
1283eee5 | 861 | |
37831078 | 862 | gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9); |
1283eee5 | 863 | |
37831078 | 864 | // Tpc SAndwich 14 - Tedlar |
1283eee5 | 865 | |
37831078 | 866 | dm[4]+= 5.e-3/cosR; |
867 | dm[5]-= 5.e-3/cosR; | |
1283eee5 | 868 | |
37831078 | 869 | // |
1283eee5 | 870 | |
37831078 | 871 | dm[7]+= 5.e-3/cosR; |
872 | dm[8]+= 5.e-3/cosR; | |
1283eee5 | 873 | |
37831078 | 874 | gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9); |
1283eee5 | 875 | |
37831078 | 876 | // Tpc SAndwich 15 - Kevlar |
1283eee5 | 877 | |
37831078 | 878 | dm[4]+= 5.e-3/cosR; |
879 | dm[5]-= 5.e-3/cosR; | |
1283eee5 | 880 | |
37831078 | 881 | // |
1283eee5 | 882 | |
37831078 | 883 | dm[7]+= 5.e-3/cosR; |
884 | dm[8]+= 5.e-3/cosR; | |
1283eee5 | 885 | |
37831078 | 886 | gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9); |
1283eee5 | 887 | |
37831078 | 888 | // Tpc SAndwich 16 - NOMEX |
1283eee5 | 889 | |
37831078 | 890 | dm[4]+= 0.06/cosR; |
891 | dm[5]-= 0.06/cosR; | |
1283eee5 | 892 | |
37831078 | 893 | // |
1283eee5 | 894 | |
37831078 | 895 | dm[7]+= 0.06/cosR; |
896 | dm[8]+= 0.06/cosR; | |
1283eee5 | 897 | |
37831078 | 898 | gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9); |
1283eee5 | 899 | |
37831078 | 900 | // 16->15->14->13 |
1283eee5 | 901 | |
37831078 | 902 | gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY"); |
903 | gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY"); | |
904 | gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY"); | |
1283eee5 | 905 | |
37831078 | 906 | // TS12->TICR |
1283eee5 | 907 | |
37831078 | 908 | gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY"); |
1283eee5 | 909 | |
37831078 | 910 | //------------------------------------------------------ |
911 | // Tpc Inner Field Cage | |
912 | // mother volume - Al, daughters - composite (sandwich) | |
913 | //------------------------------------------------------ | |
1283eee5 | 914 | |
37831078 | 915 | dm[0]= 0.; |
916 | dm[1]= 360.; | |
917 | dm[2]=6.; | |
1283eee5 | 918 | |
fe4da5cc | 919 | // |
920 | ||
37831078 | 921 | dm[3]= -253.0; |
922 | dm[4]= 70.7; | |
923 | dm[5]= 79.2; | |
fe4da5cc | 924 | |
fe4da5cc | 925 | // |
926 | ||
37831078 | 927 | dm[6]= -251.0; |
928 | dm[7]= 70.7; | |
929 | dm[8]= 79.2; | |
930 | ||
fe4da5cc | 931 | // |
37831078 | 932 | |
933 | dm[9]= -251.0; | |
934 | dm[10]= 77.15; | |
935 | dm[11]= 79.2; | |
936 | ||
fe4da5cc | 937 | // |
37831078 | 938 | |
939 | dm[12]= 251.0; | |
940 | dm[13]= 77.15; | |
941 | dm[14]= 79.2; | |
fe4da5cc | 942 | |
fe4da5cc | 943 | // |
37831078 | 944 | |
945 | dm[15]= 251.0; | |
946 | dm[16]= 66.0; | |
947 | dm[17]= 79.2; | |
948 | ||
fe4da5cc | 949 | // |
fe4da5cc | 950 | |
37831078 | 951 | dm[18]= 253.0; |
952 | dm[19]= 66.0; | |
953 | dm[20]= 79.2; | |
fe4da5cc | 954 | |
37831078 | 955 | gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21); |
fe4da5cc | 956 | |
37831078 | 957 | // Daughter volumes |
fe4da5cc | 958 | |
37831078 | 959 | // Tpc Sandwich 17 - Al |
960 | ||
961 | dm[0]= 77.15; | |
962 | dm[1]= 79.2; | |
963 | dm[2]= 251.7; | |
964 | ||
965 | gMC->Gsvolu("TS17","TUBE",idtmed[4],dm,3); | |
966 | ||
967 | // Tpc Sandwich 18 - Tedlar | |
968 | ||
969 | dm[0]+= 5.e-3; | |
970 | dm[1]-= 5.e-3; | |
971 | ||
972 | gMC->Gsvolu("TS18","TUBE",idtmed[9],dm,3); | |
973 | ||
974 | // Tpc Sandwich 19 - Kevlar | |
975 | ||
976 | dm[0]+= 5.e-3; | |
977 | dm[1]-= 5.e-3; | |
978 | ||
979 | gMC->Gsvolu("TS19","TUBE",idtmed[5],dm,3); | |
980 | ||
981 | // Tpc Sandwich 20 - NOMEX | |
982 | ||
983 | dm[0]+= 0.06; | |
984 | dm[1]-= 0.06; | |
985 | ||
986 | gMC->Gsvolu("TS20","TUBE",idtmed[6],dm,3); | |
987 | ||
988 | // 20->19->18->17 | |
989 | ||
990 | gMC->Gspos("TS20",1,"TS19",0.,0.,0.,0,"ONLY"); | |
991 | gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY"); | |
992 | gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY"); | |
993 | ||
994 | // TS17->TIFC | |
995 | ||
996 | gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY"); | |
997 | ||
998 | // TPC Rings | |
999 | ||
1000 | dm[0]= 70.7; | |
1001 | dm[1]= 79.2; | |
1002 | dm[2]= 0.3; | |
1003 | ||
1004 | gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3); | |
1005 | ||
1006 | dm[0]= 66.0; | |
1007 | dm[1]= 70.2; | |
1008 | ||
1009 | gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3); | |
1010 | ||
1011 | dm[0]= 75.3; | |
1012 | dm[1]= 79.2; | |
1013 | ||
1014 | gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3); | |
1015 | ||
1016 | // TICL->TIIN | |
1017 | ||
1018 | gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1019 | ||
1020 | // TICR->TIIN | |
1021 | ||
1022 | gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1023 | ||
1024 | // TIFC->TIIN | |
1025 | ||
1026 | gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1027 | ||
1028 | // Tpc Sandwich 21 - Al (central barrel) | |
1029 | ||
1030 | dm[0]= 77.15; | |
1031 | dm[1]= 79.2; | |
1032 | dm[2]= 75.2; | |
1033 | ||
1034 | gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3); | |
1035 | ||
1036 | // Tpc Sandwich 22 - Tedlar (central barrel) | |
1037 | ||
1038 | dm[0]+= 5.e-3; | |
1039 | dm[1]-= 5.e-3; | |
1040 | ||
1041 | gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3); | |
1042 | ||
1043 | // Tpc Sandwich 23 - Kevlar (central barrel) | |
1044 | ||
1045 | dm[0]+= 5.e-3; | |
1046 | dm[1]-= 5.e-3; | |
1047 | ||
1048 | gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3); | |
1049 | ||
1050 | // Tpc Sandwich 24 - NOMEX (central barrel) | |
1051 | ||
1052 | dm[0]+= 0.02; | |
1053 | dm[1]-= 0.02; | |
1054 | ||
1055 | gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3); | |
1056 | ||
1057 | // 24->23->22->21 | |
1058 | ||
1059 | gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY"); | |
1060 | gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY"); | |
1061 | gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY"); | |
1062 | ||
1063 | gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY"); | |
1064 | ||
1065 | // put everything into the TPC | |
1066 | ||
1067 | gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
1068 | ||
1069 | ||
1070 | //--------------------------------------------------------- | |
1071 | // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10) | |
1072 | // and its daughters (HV membrane, rods, readout chambers) | |
1073 | //--------------------------------------------------------- | |
1074 | ||
1075 | dm[0]= 79.2; | |
1076 | dm[1]= 258.0; | |
1077 | dm[2]= 253.6; | |
1078 | ||
1079 | gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3); // nonsensitive | |
1080 | ||
1081 | // sector opening angles | |
1082 | ||
1083 | Float_t innerOpenAngle = fTPCParam->GetInnerAngle(); | |
1084 | Float_t outerOpenAngle = fTPCParam->GetOuterAngle(); | |
1085 | ||
1086 | // sector angle shift | |
1087 | ||
1088 | Float_t innerAngleShift = fTPCParam->GetInnerAngleShift(); | |
1089 | ||
1090 | // All above parameters are identical for inner and outer | |
1091 | // sectors. The distinction is kept for the historical reasons | |
1092 | // and eventually will disappear. | |
1093 | ||
1094 | Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle); | |
1095 | Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha); | |
1096 | Float_t space; | |
1097 | ||
1098 | //------------------------------------------------------------------------- | |
1099 | // Tpc Inner Readout Chambers | |
1100 | //------------------------------------------------------------------------- | |
1101 | ||
1102 | dm[0]= 14.483; | |
1103 | dm[1]= 23.3345; | |
1104 | dm[2]= 1.6; // thickness | |
1105 | dm[3]= 25.1; | |
1106 | ||
1107 | gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4); | |
1108 | ||
1109 | // this volume will be positioned in the empty space | |
1110 | // of the end-cap to avoid overlaps | |
1111 | ||
1112 | dm[0]= 13.7305; | |
1113 | dm[1]= 21.1895; | |
1114 | dm[2]= 2.25; | |
1115 | dm[3]= 21.15; | |
1116 | ||
1117 | gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4); | |
1118 | ||
1119 | //------------------------------------------------ | |
1120 | // Tpc Inner readout chamber Pad Plane | |
1121 | //------------------------------------------------ | |
1122 | ||
1123 | dm[0]= 14.483; | |
1124 | dm[1]= 23.3345; | |
1125 | dm[2]= 0.5; | |
1126 | dm[3]= 25.1; | |
1127 | ||
1128 | gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4); | |
1129 | ||
1130 | // | |
1131 | ||
1132 | dm[0] -= 1.218511934; | |
1133 | dm[1] -= 1.218511934; | |
1134 | dm[2] = 0.35; | |
1135 | ||
1136 | gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4); | |
1137 | ||
1138 | gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY"); | |
1139 | ||
1140 | gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY"); | |
1141 | ||
1142 | //---------------------------------------------- | |
1143 | // Tpc Readout Chambers Empty spaces - for both | |
1144 | // inner and outer sectors | |
1145 | //---------------------------------------------- | |
1146 | ||
1147 | gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0); | |
1148 | ||
1149 | // Inner sector - 4 spaces | |
1150 | ||
1151 | ||
1152 | dm[3] = 4.7625; | |
1153 | dm[0] = 12.472; | |
1154 | ||
1155 | Float_t rr = 90.52; | |
1156 | Float_t zz; | |
1157 | ||
1158 | zz= -12.7875; | |
1159 | ||
1160 | space = rr*tanAlpha-dm[0]; | |
1161 | ||
1162 | for(Int_t nsLow=0;nsLow<4;nsLow++){ | |
1163 | ||
1164 | rr += 9.525; | |
1165 | dm[1]= rr*tanAlpha - space; | |
1166 | ||
1167 | dm[2]=0.8; | |
1168 | ||
1169 | gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4); | |
1170 | ||
1171 | // | |
1172 | ||
1173 | dm[2]= 1.2; | |
1174 | ||
1175 | gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4); | |
1176 | ||
1177 | rr += 0.4; | |
1178 | dm[0] = rr*tanAlpha - space; | |
1179 | zz += (0.4+9.525); | |
1180 | ||
1181 | } | |
1182 | ||
1183 | dm[0]= 12.472; | |
1184 | // dm[1] - this is the dm[1] from the previous TRCE | |
1185 | dm[2]= 1.05; | |
1186 | dm[3]= 19.65; | |
1187 | ||
1188 | gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4); | |
1189 | ||
1190 | // | |
1191 | // TPc Space for Connectors | |
1192 | // | |
1193 | ||
1194 | dm[0]= .3; | |
1195 | dm[1]= .3; | |
1196 | dm[2]= 4.5; | |
1197 | ||
1198 | gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3); | |
1199 | ||
1200 | // TPC Connectors | |
1201 | ||
1202 | dm[0]= .25; | |
1203 | dm[1]= .15; | |
1204 | dm[2]= 3.75; | |
1205 | ||
1206 | gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3); | |
1207 | ||
1208 | gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY"); | |
1209 | ||
1210 | zz = -12.7875; | |
1211 | ||
1212 | Float_t alpha; | |
1213 | Float_t astep; | |
1214 | ||
1215 | Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles | |
1216 | ||
1217 | // inner part of the inner sector - 2 x 20 holes | |
1218 | ||
1219 | astep = 20.00096874/19.; | |
1220 | ||
1221 | alpha = 10.00048437-astep; | |
1222 | ||
1223 | Float_t x1,x2; | |
1224 | ||
1225 | x1 = 13.31175725; | |
1226 | x1 -= 0.996357832; | |
1227 | ||
1228 | x2 = 15.06180253; | |
1229 | x2 -= 1.163028812; | |
1230 | ||
1231 | Int_t ncon; | |
1232 | ||
1233 | for(ncon=0;ncon<20;ncon++){ | |
1234 | ||
1235 | phi1 = 0.; | |
1236 | theta1 = 90.+alpha; | |
1237 | phi2=90.; | |
1238 | theta2 = 90.; | |
1239 | phi3 = (alpha>0) ? 0. : 180.; | |
1240 | theta3 = TMath::Abs(alpha); | |
1241 | ||
1242 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1243 | ||
1244 | ||
1245 | ||
1246 | gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY"); | |
1247 | gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY"); | |
1248 | ||
1249 | ||
1250 | x1 -= 1.296357833; | |
1251 | x2 -= 1.463028812; | |
1252 | ||
1253 | alpha -= astep; | |
1254 | nRotMat++; | |
1255 | ||
1256 | } | |
1257 | ||
1258 | // outer part of the inner sector - 2 x 25 holes | |
1259 | ||
1260 | astep = 20.00096874/24.; | |
1261 | alpha = 10.00048437-astep; | |
1262 | ||
1263 | x1 = 16.81184781; | |
1264 | x1 -= 1.016295986; | |
1265 | ||
1266 | x2 = 18.5618931; | |
1267 | x2 -= 1.150914854; | |
1268 | ||
1269 | for(ncon=0;ncon<25;ncon++){ | |
1270 | ||
1271 | phi1 = 0.; | |
1272 | theta1 = 90.+alpha; | |
1273 | phi2=90.; | |
1274 | theta2 = 90.; | |
1275 | phi3 = (alpha>0) ? 0. : 180.; | |
1276 | theta3 = TMath::Abs(alpha); | |
1277 | ||
1278 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1279 | ||
1280 | ||
1281 | ||
1282 | gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY"); | |
1283 | gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY"); | |
1284 | ||
1285 | ||
1286 | x1 -= 1.316295986; | |
1287 | x2 -= 1.450914854; | |
1288 | ||
1289 | alpha -= astep; | |
1290 | nRotMat++; | |
1291 | ||
1292 | } | |
1293 | ||
1294 | //-------------------------------------------------------------------------- | |
1295 | // TPC Outer Readout Chambers | |
1296 | // this is NOT a final design | |
1297 | //-------------------------------------------------------------------------- | |
1298 | ||
1299 | dm[0]= 23.3875; | |
1300 | dm[1]= 43.524; | |
1301 | dm[2]= 1.5; //thickness | |
1302 | dm[3]= 57.1; | |
1303 | ||
1304 | gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4); | |
1305 | ||
1306 | //------------------------------------------------ | |
1307 | // Tpc Outer readout chamber Pad Plane | |
1308 | //------------------------------------------------ | |
1309 | ||
1310 | dm[2]= 0.5; | |
1311 | ||
1312 | gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4); | |
1313 | ||
1314 | dm[0] -= 1.218511934; | |
1315 | dm[1] -= 1.218511934; | |
1316 | dm[2] = 0.35; | |
1317 | ||
1318 | gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4); | |
1319 | ||
1320 | gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY"); | |
1321 | ||
1322 | gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY"); | |
1323 | ||
1324 | // empty space | |
1325 | ||
1326 | ||
1327 | dm[0]= 21.035; | |
1328 | dm[1]= 38.7205; | |
1329 | dm[2]= 0.7; | |
1330 | dm[3]= 50.15; | |
1331 | ||
1332 | gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4); | |
1333 | ||
1334 | dm[0]= 22.2935; | |
1335 | dm[1]= 40.5085; | |
1336 | dm[2]= 2.25; | |
1337 | dm[3]= 51.65; | |
1338 | ||
1339 | gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4); | |
1340 | ||
1341 | dm[0]= 21.35; | |
1342 | dm[1]= 38.7205; | |
1343 | dm[2]= 2.25; | |
1344 | dm[3]= 50.15; | |
1345 | ||
1346 | gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4); | |
1347 | ||
1348 | ||
1349 | ||
1350 | //----------------------------------------------- | |
1351 | // Tpc Services Support Wheel | |
1352 | //----------------------------------------------- | |
1353 | ||
1354 | dm[0]=0.; | |
1355 | dm[1]=360.; | |
1356 | dm[2]=18.; | |
1357 | dm[3]=2.; | |
1358 | ||
1359 | dm[4]= -5.; | |
1360 | dm[5]= 77.017; | |
1361 | dm[6]= 255.267; | |
1362 | ||
1363 | dm[7]= 5.; | |
1364 | dm[8]= dm[5]; | |
1365 | dm[9]= dm[6]; | |
1366 | ||
1367 | gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10); | |
1368 | ||
1369 | // Tpc Services Wheel Cover | |
1370 | ||
1371 | dm[4]= -0.5; | |
1372 | dm[7]= 0.5; | |
1373 | ||
1374 | gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10); | |
1375 | ||
1376 | // Tpc Service wheel Cover Empty space | |
1377 | ||
1378 | dm[0]= 10.99; | |
1379 | dm[1]= 39.599; | |
1380 | dm[2]= .5; | |
1381 | dm[3]= 81.125; | |
1382 | ||
1383 | gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4); | |
1384 | ||
1385 | // Tpc services Wheel Empty Spaces | |
1386 | ||
1387 | dm[0]= 13.18017507; | |
1388 | dm[1]= 44.61045938; | |
1389 | dm[2]= 4.; | |
1390 | dm[3]= 89.125; | |
1391 | ||
1392 | gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4); | |
1393 | ||
1394 | // Tpc Services Wheel Bars | |
1395 | ||
1396 | gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0); | |
1397 | ||
1398 | // bars-> TWES | |
1399 | ||
1400 | dm[2]= 4.; | |
1401 | dm[3]= .4; | |
1402 | ||
1403 | dm[0]= 13.8149522; | |
1404 | dm[1]= 13.95601379; | |
1405 | ||
1406 | gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4); | |
1407 | ||
1408 | dm[0]= 43.83462067; | |
1409 | dm[1]= 43.97568225; | |
1410 | ||
1411 | gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4); | |
1412 | ||
1413 | // TPc ELectronics - right now 30% X0 Si | |
1414 | ||
1415 | dm[0]= 14.03813696; | |
1416 | dm[1]= 43.3524075; | |
1417 | dm[2]= 1.404; | |
1418 | dm[3]= 83.125; | |
1419 | ||
1420 | gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4); | |
1421 | gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY"); | |
1422 | ||
1423 | //-------------------------------------------------------------------------- | |
1424 | // End caps | |
1425 | //-------------------------------------------------------------------------- | |
1426 | ||
1427 | // TPc Main Wheel - Al | |
1428 | ||
1429 | dm[0]= 75.3; | |
1430 | dm[1]= 264.8; | |
1431 | dm[2]= 3.0; | |
1432 | ||
1433 | gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3); | |
1434 | ||
1435 | // TPc Extra Wheel (to avoid overlapping) - Al | |
1436 | ||
1437 | dm[0]= 264.8; | |
1438 | dm[1]= 277.0; | |
1439 | dm[2]= 1.95; | |
1440 | ||
1441 | gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3); | |
1442 | ||
1443 | //-------------------------------------------------------------------------- | |
1444 | // Tpc Empty Space for the Readout chambers | |
1445 | //-------------------------------------------------------------------------- | |
1446 | ||
1447 | Float_t rLow= 86.2; | |
1448 | Float_t rUp= 243.5; | |
1449 | Float_t dR = 0.5*(rUp-rLow); | |
1450 | ||
1451 | space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide | |
1452 | ||
1453 | dm[0]= rLow*tanAlpha-space; | |
1454 | dm[1]= rUp*tanAlpha-space; | |
1455 | dm[2]= 3.0; | |
1456 | dm[3]= dR; | |
1457 | ||
1458 | gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4); | |
1459 | ||
1460 | // TIC1->TESR | |
1461 | ||
1462 | ||
1463 | gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY"); | |
1464 | ||
1465 | ||
1466 | // TOC1->TESR | |
1467 | ||
1468 | gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY"); | |
1469 | ||
1470 | // Tpc Empty Space Bars - Al (daughters of TESR) | |
1471 | ||
1472 | Float_t zBar; | |
1473 | ||
1474 | gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0); | |
1475 | ||
1476 | // lower bar | |
1477 | ||
1478 | dm[0]= rLow*tanAlpha-space; | |
1479 | dm[1]= 88.7*tanAlpha-space; | |
1480 | dm[2]= 0.95; | |
1481 | dm[3]= 1.275; | |
1482 | ||
1483 | zBar = -dR+dm[3]; | |
1484 | ||
1485 | gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4); | |
1486 | ||
1487 | // middle bar | |
1488 | ||
1489 | dm[0]= 131.65*tanAlpha-space; | |
1490 | dm[1]= 136.5*tanAlpha-space; | |
1491 | dm[3]= 2.425; | |
1492 | ||
1493 | zBar = -dR +131.65+dm[3]-rLow; | |
1494 | ||
1495 | gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4); | |
1496 | ||
1497 | // upper bar | |
1498 | ||
1499 | dm[0]= 240.4*tanAlpha-space; | |
1500 | dm[1]= rUp*tanAlpha-space; | |
1501 | dm[3]= 1.55; | |
1502 | ||
1503 | zBar = dR-dm[3]; | |
1504 | ||
1505 | gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4); | |
1506 | ||
1507 | //------------------------------------------------------ | |
1508 | // TPc Lower "S" Sectors | |
1509 | //------------------------------------------------------ | |
1510 | ||
1511 | ||
1512 | Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow(); | |
1513 | Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp(); | |
1514 | ||
1515 | dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1516 | dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1517 | dm[2] = 0.5*(250. - 0.3); | |
1518 | dm[3] = 0.5*(inSecUpEdge-inSecLowEdge); | |
1519 | ||
1520 | gMC->Gsvolu("TPLS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1521 | ||
1522 | //---------------------------------------------------------- | |
1523 | // TPc Upper Sectors | |
1524 | //---------------------------------------------------------- | |
1525 | ||
1526 | Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow(); | |
1527 | Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp(); | |
1528 | ||
1529 | dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
1530 | dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01; | |
1531 | dm[2] = 0.5*(250. - 0.3); | |
1532 | dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge); | |
1533 | ||
1534 | gMC->Gsvolu("TPUS", "TRD1", idtmed[2], dm, 4); // sensitive | |
1535 | ||
1536 | ||
37831078 | 1537 | |
37831078 | 1538 | |
1539 | gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive | |
1540 | ||
1541 | Int_t nofStrips,nstr; | |
1542 | Float_t r1,r2,zs; | |
1543 | Float_t stripThick = 0.01; // 100 microns | |
1544 | Float_t deadSpace; | |
1545 | ||
1546 | // inner sector | |
1547 | ||
d4c354b9 | 1548 | |
1549 | // if all lower sectors selected define only 1 strip | |
1550 | ||
1551 | nofStrips=((fSecAL <0)||(fSecAL>=0 && fSens<0)) ? 1 : fTPCParam->GetNRowLow(); | |
37831078 | 1552 | deadSpace = fTPCParam->GetInnerWireMount(); |
1553 | ||
1554 | dm[2] = 0.5*(250. - 0.3); | |
1555 | dm[3] = 0.5 * stripThick; | |
1556 | ||
d4c354b9 | 1557 | |
37831078 | 1558 | for(nstr=0;nstr<nofStrips;nstr++){ |
1559 | ||
1560 | r1 = fTPCParam->GetPadRowRadiiLow(nstr); | |
1561 | r2 = r1 + stripThick; | |
1562 | dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1563 | dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace; | |
1564 | zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge); | |
1565 | zs += r1; | |
1566 | zs += dm[3]; | |
1567 | ||
1568 | gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1569 | ||
37831078 | 1570 | |
1571 | } | |
1572 | ||
d4c354b9 | 1573 | // strips only if several upper sectors selected end fSens > 0 |
1574 | ||
1575 | if(fSecAU >=0 && fSens >0){ | |
1576 | ||
37831078 | 1577 | Int_t nsSave = nofStrips; |
1578 | ||
1579 | // outer sector | |
1580 | ||
1581 | nofStrips = fTPCParam->GetNRowUp(); | |
1582 | deadSpace = fTPCParam->GetOuterWireMount(); | |
1583 | ||
1584 | dm[2] = 0.5*(250. - 0.3); | |
1585 | dm[3] = 0.5 * stripThick; | |
d4c354b9 | 1586 | |
37831078 | 1587 | |
1588 | for(nstr=0;nstr<nofStrips;nstr++){ | |
1589 | ||
1590 | r1 = fTPCParam->GetPadRowRadiiUp(nstr); | |
1591 | r2 = r1 + stripThick; | |
1592 | dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1593 | dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace; | |
1594 | zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge); | |
1595 | zs += r1; | |
1596 | zs += dm[3]; | |
1597 | ||
1598 | gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4); | |
1599 | ||
1600 | } | |
d4c354b9 | 1601 | } |
37831078 | 1602 | |
1603 | //------------------------------------------------------- | |
1604 | // positioning of the empty spaces into the main wheel | |
1605 | // and readout chambers and sectors into the drift gas | |
1606 | //------------------------------------------------------- | |
1607 | ||
1608 | Float_t rCenter,xc,yc; | |
1609 | Float_t rInner,rOuter; // center of the inner and outer chamber | |
1610 | ||
1611 | rCenter = rLow+dR; | |
1612 | ||
1613 | rInner = 108.07; | |
1614 | rOuter = 190.68; | |
1615 | ||
1616 | for(Int_t ns=0; ns<nInnerSector;ns++){ | |
1617 | ||
1618 | phi1 = ns * innerOpenAngle + innerAngleShift; | |
1619 | phi1 *= kRaddeg; // in degrees | |
1620 | ||
1621 | phi1 = (Float_t)TMath::Nint(phi1) + 270.; | |
1622 | ||
1623 | if (phi1 > 360.) phi1 -= 360.; | |
1624 | ||
1625 | theta1 = 90.; | |
1626 | phi2 = 90.; | |
1627 | theta2 = 180.; | |
1628 | phi3 = ns * innerOpenAngle + innerAngleShift; | |
1629 | phi3 *= kRaddeg; // in degrees | |
1630 | ||
1631 | phi3 = (Float_t)TMath::Nint(phi3); | |
1632 | ||
1633 | if(phi3 > 360.) phi3 -= 360.; | |
1634 | ||
1635 | theta3 = 90.; | |
1636 | ||
1637 | // "holes"->End plate | |
1638 | ||
1639 | xc = rCenter*TMath::Cos(phi3*kDegrad); | |
1640 | yc = rCenter*TMath::Sin(phi3*kDegrad); | |
1641 | ||
1642 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1643 | ||
1644 | gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1645 | ||
1646 | // TSCE->TSWC (services wheel volumes) | |
1647 | ||
1648 | xc = 166.142*TMath::Cos(phi3*kDegrad); | |
1649 | yc = 166.142*TMath::Sin(phi3*kDegrad); | |
1650 | ||
1651 | gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1652 | gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY"); | |
1653 | ||
1654 | // readout chambers->TDGN (drift gas) | |
1655 | ||
1656 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1657 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1658 | ||
1659 | gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY"); | |
1660 | ||
1661 | // here lower sectors | |
1662 | ||
1663 | if(fSecAL <0){ | |
1664 | ||
1665 | // all lower sectors are positioned | |
1666 | ||
1667 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1668 | gMC-> | |
1669 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1670 | } | |
1671 | else{ | |
1672 | ||
1673 | // only selected sectors are positioned (up to 6 sectors) | |
1674 | ||
1675 | for(Int_t sel=0;sel<6;sel++){ | |
1676 | ||
1677 | if(fSecLows[sel] == ns){ | |
1678 | gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1679 | } | |
1680 | else if(fSecLows[sel] == ns+nInnerSector){ | |
1681 | gMC-> | |
1682 | Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1683 | } | |
1684 | } | |
1685 | } // lower sectors finished | |
1686 | ||
1687 | xc = rOuter*TMath::Cos(phi3*kDegrad); | |
1688 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1689 | ||
1690 | gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY"); | |
1691 | ||
1692 | // here upper sectors | |
1693 | ||
1694 | if(fSecAU <0){ | |
1695 | ||
1696 | // all upper sectors | |
1697 | ||
1698 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1699 | gMC-> | |
1700 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1701 | } | |
1702 | else{ | |
1703 | ||
1704 | // only selected sectors (up to 12) | |
1705 | ||
1706 | for(Int_t sel=0;sel<12;sel++){ | |
1707 | if(fSecUps[sel] == ns+2*nInnerSector){ | |
1708 | gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY"); | |
1709 | } | |
1710 | else if(fSecUps[sel] == ns+2*nInnerSector+nOuterSector){ | |
1711 | gMC-> | |
1712 | Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY"); | |
1713 | } | |
1714 | } | |
1715 | } // upper sectors finished | |
1716 | ||
1717 | nRotMat++; | |
1718 | ||
1719 | theta2 = 0.; // reflection, needed for readout chambers! | |
1720 | ||
1721 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1722 | ||
1723 | xc = rInner*TMath::Cos(phi3*kDegrad); | |
1724 | yc = rInner*TMath::Sin(phi3*kDegrad); | |
1725 | ||
1726 | gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY"); | |
1727 | ||
1728 | xc = rOuter*TMath::Cos(phi3*kDegrad); | |
1729 | yc = rOuter*TMath::Sin(phi3*kDegrad); | |
1730 | ||
1731 | gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY"); | |
1732 | ||
1733 | nRotMat++; | |
1734 | ||
1735 | ||
1736 | } | |
1737 | ||
1738 | // reflection matrix | |
1739 | ||
1740 | theta1 = 90.; | |
1741 | phi1 = 0.; | |
1742 | theta2 = 90.; | |
1743 | phi2 = 270.; | |
1744 | theta3 = 180.; | |
1745 | phi3 = 0.; | |
1746 | ||
1747 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
1748 | ||
1749 | ||
1750 | // TPMW->TPC | |
1751 | ||
1752 | gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY"); | |
1753 | gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY"); | |
1754 | gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY"); | |
1755 | gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY"); | |
1756 | ||
1757 | ||
1758 | ||
1759 | //------------------------------------------------------- | |
1760 | // Tpc High Voltage Membrane - NOMEX honeycomb | |
1761 | //------------------------------------------------------- | |
1762 | ||
1763 | dm[0]=0., | |
1764 | dm[1]=360.; | |
1765 | dm[2]=18.; | |
1766 | dm[3]=2.; | |
1767 | ||
1768 | // | |
1769 | ||
1770 | dm[4]= -0.3; | |
1771 | dm[5]= 81.156; | |
1772 | dm[6]= 253.386; | |
1773 | ||
1774 | // | |
1775 | ||
1776 | dm[7]= 0.3; | |
1777 | dm[8]= dm[5]; | |
1778 | dm[9]= dm[6]; | |
1779 | ||
1780 | gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10); | |
1781 | ||
1782 | gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY"); | |
1783 | ||
1784 | //---------------------------------------------------------- | |
1785 | // TPc Support Rods - MAKROLON | |
1786 | //---------------------------------------------------------- | |
1787 | ||
1788 | dm[0]= 0.9; | |
1789 | dm[1]= 1.2; | |
1790 | dm[2]= 126.65; | |
1791 | ||
1792 | gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3); | |
1793 | ||
1794 | for(Int_t nrod=1;nrod<18;nrod++){ | |
1795 | Float_t angle=innerOpenAngle*(Float_t)nrod; | |
1796 | ||
1797 | xc=82.4*TMath::Cos(angle); | |
1798 | yc=82.4*TMath::Sin(angle); | |
1799 | ||
1800 | gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY"); | |
1801 | gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY"); | |
1802 | ||
1803 | xc=254.2*TMath::Cos(angle); | |
1804 | yc=254.2*TMath::Sin(angle); | |
1805 | ||
1806 | gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY"); | |
1807 | gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY"); | |
1808 | ||
1809 | } | |
1810 | ||
1811 | //---------------------------------------------------------- | |
1812 | // Tpc High Voltage rod - MAKROLON + Copper cable | |
1813 | //---------------------------------------------------------- | |
1814 | ||
1815 | // rod with cable (Left) | |
1816 | ||
1817 | dm[0]=0.; | |
1818 | dm[1]=2.25; | |
1819 | dm[2]=126.65; | |
1820 | ||
1821 | gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3); | |
1822 | ||
1823 | // HV cable | |
1824 | ||
1825 | dm[0]=0.; | |
1826 | dm[1]=0.3; | |
1827 | dm[2]=126.65; | |
1828 | ||
1829 | gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3); | |
1830 | ||
1831 | // empty space | |
1832 | ||
1833 | dm[0]=0.3; | |
1834 | dm[1]=1.; | |
1835 | dm[2]=126.65; | |
1836 | ||
1837 | gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3); | |
1838 | ||
1839 | gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1840 | gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY"); | |
1841 | ||
1842 | // rod without cable | |
1843 | ||
1844 | dm[0]=1.8; | |
1845 | dm[1]=2.25; | |
1846 | dm[2]=126.65; | |
1847 | ||
1848 | gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3); | |
1849 | ||
1850 | ||
1851 | ||
1852 | gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY"); | |
1853 | gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY"); | |
1854 | ||
1855 | gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY"); | |
1856 | gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY"); | |
1857 | ||
1858 | ||
1859 | ||
1860 | gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
1861 | ||
1862 | // services wheel cover -> wheel | |
1863 | ||
1864 | ||
1865 | gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY"); | |
1866 | gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY"); | |
1867 | ||
1868 | ||
1869 | // put the wheel into the TPC | |
1870 | ||
1871 | gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY"); | |
1872 | gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY"); | |
1873 | ||
1874 | gMC->Gsord("TPMW",6); | |
d4c354b9 | 1875 | if(fSecAL >=0) gMC->Gsord("TPLS",3); |
1876 | if(fSecAU >=0 && fSens >0) gMC->Gsord("TPUS",3); | |
37831078 | 1877 | gMC->Gsord("TDGN",6); |
1878 | gMC->Gsord("TSSW",6); | |
1879 | gMC->Gsord("TSWC",6); | |
1880 | ||
1881 | // put the TPC into ALIC (main mother volume) | |
1882 | ||
1883 | gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY"); | |
1884 | ||
1885 | } // end of function | |
1886 | ||
1887 | //_____________________________________________________________________________ | |
1888 | void AliTPCv2::DrawDetector() | |
1889 | { | |
1890 | // | |
1891 | // Draw a shaded view of the Time Projection Chamber version 1 | |
1892 | // | |
1893 | ||
1894 | // Set everything unseen | |
1895 | gMC->Gsatt("*", "seen", -1); | |
1896 | // | |
1897 | // Set ALIC mother transparent | |
1898 | gMC->Gsatt("ALIC","SEEN",0); | |
1899 | // | |
1900 | // Set the volumes visible | |
1901 | // | |
1902 | ||
1903 | gMC->Gsatt("TPC ","SEEN",0); | |
1904 | gMC->Gsatt("TOIN","SEEN",1); | |
1905 | gMC->Gsatt("TOIN","COLO",7); | |
1906 | gMC->Gsatt("TPCR","SEEN",0); | |
1907 | gMC->Gsatt("TOCV","SEEN",1); | |
1908 | gMC->Gsatt("TOCV","COLO",4); | |
1909 | gMC->Gsatt("TSA1","SEEN",0); | |
1910 | gMC->Gsatt("TSA2","SEEN",0); | |
1911 | gMC->Gsatt("TSA3","SEEN",0); | |
1912 | gMC->Gsatt("TSA4","SEEN",0); | |
1913 | gMC->Gsatt("TOFC","SEEN",1); | |
1914 | gMC->Gsatt("TOFC","COLO",4); | |
1915 | gMC->Gsatt("TSA5","SEEN",0); | |
1916 | gMC->Gsatt("TSA6","SEEN",0); | |
1917 | gMC->Gsatt("TSA7","SEEN",0); | |
1918 | gMC->Gsatt("TSA8","SEEN",0); | |
1919 | gMC->Gsatt("TIIN","COLO",7); | |
1920 | gMC->Gsatt("TIIN","SEEN",1); | |
1921 | gMC->Gsatt("TICL","SEEN",0); | |
1922 | gMC->Gsatt("TSA9","SEEN",0); | |
1923 | gMC->Gsatt("TS10","SEEN",0); | |
1924 | gMC->Gsatt("TS11","SEEN",0); | |
1925 | gMC->Gsatt("TS12","SEEN",0); | |
1926 | gMC->Gsatt("TICR","SEEN",0); | |
1927 | gMC->Gsatt("TS13","SEEN",0); | |
1928 | gMC->Gsatt("TS14","SEEN",0); | |
1929 | gMC->Gsatt("TS15","SEEN",0); | |
1930 | gMC->Gsatt("TS16","SEEN",0); | |
1931 | gMC->Gsatt("TIFC","SEEN",1); | |
1932 | gMC->Gsatt("TIFC","COLO",4); | |
1933 | gMC->Gsatt("TS17","SEEN",0); | |
1934 | gMC->Gsatt("TS18","SEEN",0); | |
1935 | gMC->Gsatt("TS19","SEEN",0); | |
1936 | gMC->Gsatt("TS20","SEEN",0); | |
1937 | gMC->Gsatt("TS21","SEEN",0); | |
1938 | gMC->Gsatt("TS22","SEEN",0); | |
1939 | gMC->Gsatt("TS23","SEEN",0); | |
1940 | gMC->Gsatt("TS24","SEEN",0); | |
1941 | gMC->Gsatt("TDGN","SEEN",0); | |
1942 | gMC->Gsatt("TIRC","SEEN",0); | |
1943 | gMC->Gsatt("TIC1","SEEN",1); | |
1944 | gMC->Gsatt("TIPP","SEEN",0); | |
1945 | gMC->Gsatt("TIC3","SEEN",0); | |
1946 | gMC->Gsatt("TRCE","SEEN",0); | |
1947 | gMC->Gsatt("TPSC","SEEN",0); | |
1948 | gMC->Gsatt("TPCC","SEEN",0); | |
1949 | gMC->Gsatt("TORC","SEEN",0); | |
1950 | gMC->Gsatt("TOPP","SEEN",0); | |
1951 | gMC->Gsatt("TOC3","SEEN",0); | |
1952 | gMC->Gsatt("TOC1","SEEN",1); | |
1953 | gMC->Gsatt("TSSW","SEEN",1); | |
1954 | gMC->Gsatt("TSWC","SEEN",1); | |
1955 | gMC->Gsatt("TSCE","SEEN",1); | |
1956 | gMC->Gsatt("TSSW","COLO",3); | |
1957 | gMC->Gsatt("TSWC","COLO",3); | |
1958 | gMC->Gsatt("TSCE","COLO",6); | |
1959 | gMC->Gsatt("TWES","SEEN",0); | |
1960 | gMC->Gsatt("TSWB","SEEN",0); | |
1961 | gMC->Gsatt("TPEL","SEEN",0); | |
1962 | gMC->Gsatt("TPMW","SEEN",1); | |
1963 | gMC->Gsatt("TPEW","SEEN",1); | |
1964 | gMC->Gsatt("TESR","SEEN",1); | |
1965 | gMC->Gsatt("TPMW","COLO",12); | |
1966 | gMC->Gsatt("TPEW","COLO",12); | |
1967 | gMC->Gsatt("TWES","COLO",5); | |
1968 | gMC->Gsatt("TIC1","COLO",5); | |
1969 | gMC->Gsatt("TOC1","COLO",5); | |
1970 | gMC->Gsatt("TESB","SEEN",0); | |
1971 | gMC->Gsatt("TPLS","SEEN",0); | |
1972 | gMC->Gsatt("TPUS","SEEN",0); | |
1973 | gMC->Gsatt("TPSS","SEEN",0); | |
1974 | gMC->Gsatt("THVM","SEEN",1); | |
1975 | gMC->Gsatt("THVM","COLO",11); | |
1976 | gMC->Gsatt("TPSR","SEEN",0); | |
1977 | gMC->Gsatt("THVL","SEEN",0); | |
1978 | gMC->Gsatt("THVC","SEEN",0); | |
1979 | gMC->Gsatt("THVE","SEEN",0); | |
1980 | gMC->Gsatt("THVR","SEEN",0); | |
1981 | ||
1982 | // | |
1983 | gMC->Gdopt("hide", "on"); | |
1984 | gMC->Gdopt("shad", "on"); | |
1985 | gMC->Gsatt("*", "fill", 7); | |
1986 | gMC->SetClipBox("."); | |
1987 | gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.); | |
1988 | gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.); | |
1989 | gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.); | |
1990 | gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.); | |
1991 | gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290); | |
1992 | gMC->DefaultRange(); | |
1993 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
1994 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
1995 | gMC->Gdman(18, 4, "MAN"); | |
1996 | gMC->Gdopt("hide","off"); | |
1997 | } | |
1998 | ||
1999 | //_____________________________________________________________________________ | |
2000 | void AliTPCv2::CreateMaterials() | |
2001 | { | |
2002 | // | |
2003 | // Define materials for version 2 of the Time Projection Chamber | |
2004 | // | |
2005 | ||
2006 | AliTPC::CreateMaterials(); | |
2007 | } | |
2008 | ||
2009 | //_____________________________________________________________________________ | |
2010 | void AliTPCv2::Init() | |
2011 | { | |
2012 | // | |
2013 | // Initialises version 2 of the TPC after that it has been built | |
2014 | // | |
2015 | ||
2016 | Int_t *idtmed = fIdtmed->GetArray(); | |
2017 | ||
2018 | AliTPC::Init(); | |
d4c354b9 | 2019 | |
2020 | ||
2021 | ||
2022 | fIdSens=gMC->VolId("TPSS"); | |
2023 | ||
2024 | fIdLSec=gMC->VolId("TPLS"); // lower sector | |
37831078 | 2025 | fIdUSec=gMC->VolId("TPUS"); // upper sector |
2026 | ||
2027 | gMC->SetMaxNStep(30000); // max. number of steps increased | |
2028 | ||
2029 | gMC->Gstpar(idtmed[2],"LOSS",5); // specific energy loss | |
2030 | ||
2031 | printf("*** TPC version 2 initialized ***\n"); | |
2032 | printf("Maximum number of steps = %d\n",gMC->GetMaxNStep()); | |
2033 | ||
2034 | // | |
fe4da5cc | 2035 | |
2036 | } | |
2037 | ||
2038 | //_____________________________________________________________________________ | |
2039 | void AliTPCv2::StepManager() | |
2040 | { | |
2041 | // | |
2042 | // Called for every step in the Time Projection Chamber | |
2043 | // | |
2044 | ||
2045 | // | |
2046 | // parameters used for the energy loss calculations | |
2047 | // | |
73042f01 | 2048 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
2049 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
2050 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
fe4da5cc | 2051 | |
2052 | ||
73042f01 | 2053 | const Float_t kbig = 1.e10; |
fe4da5cc | 2054 | |
2055 | Int_t id,copy; | |
2056 | Float_t hits[4]; | |
2057 | Int_t vol[2]; | |
2058 | TClonesArray &lhits = *fHits; | |
37831078 | 2059 | TLorentzVector p; |
fe4da5cc | 2060 | |
37831078 | 2061 | vol[1]=0; // preset row number to 0 |
fe4da5cc | 2062 | |
2063 | // | |
2064 | ||
73042f01 | 2065 | gMC->SetMaxStep(kbig); |
fe4da5cc | 2066 | |
0a6d8768 | 2067 | if(!gMC->IsTrackAlive()) return; // particle has disappeared |
fe4da5cc | 2068 | |
cfce8870 | 2069 | Float_t charge = gMC->TrackCharge(); |
fe4da5cc | 2070 | |
2071 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
2072 | ||
37831078 | 2073 | // check the sensitive volume |
2074 | ||
2075 | id = gMC->CurrentVolID(copy); // current volume Id | |
2076 | ||
2077 | if(id == fIdLSec){ | |
2078 | vol[0] = copy-1; // lower sector number | |
2079 | } | |
2080 | else if(id == fIdUSec){ | |
2081 | vol[0] = copy+fTPCParam->GetNInnerSector()-1; // upper sector number | |
2082 | } | |
2083 | else if(id == fIdSens && gMC->IsTrackEntering()){ | |
2084 | ||
2085 | // track is entering the sensitive strip | |
2086 | ||
2087 | vol[1]= copy-1; // row number (absolute) | |
2088 | ||
2089 | // sector type | |
2090 | ||
2091 | id = gMC->CurrentVolOffID(1,copy); | |
2092 | ||
2093 | if(id == fIdLSec){ | |
2094 | ||
2095 | // lower sector | |
2096 | ||
2097 | vol[0] = copy-1; // sector number | |
2098 | ||
fe4da5cc | 2099 | } |
37831078 | 2100 | else { |
2101 | ||
2102 | // upper sector | |
2103 | ||
2104 | vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number | |
2105 | vol[1] -= fTPCParam->GetNRowLow(); // row number | |
2106 | ||
2107 | } | |
2108 | ||
2109 | if(vol[1] == 0){ | |
2110 | ||
2111 | // because Jouri wants to have this | |
2112 | ||
2113 | gMC->TrackMomentum(p); | |
2114 | hits[0]=p[0]; | |
2115 | hits[1]=p[1]; | |
2116 | hits[2]=p[2]; | |
fe4da5cc | 2117 | hits[3]=0.; // this hit has no energy loss |
2118 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
37831078 | 2119 | |
930ee558 | 2120 | } |
37831078 | 2121 | |
930ee558 | 2122 | gMC->TrackPosition(p); |
2123 | hits[0]=p[0]; | |
2124 | hits[1]=p[1]; | |
2125 | hits[2]=p[2]; | |
2126 | hits[3]=0.; // this hit has no energy loss | |
2127 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
2128 | ||
2129 | ||
37831078 | 2130 | } |
fe4da5cc | 2131 | else return; |
37831078 | 2132 | |
2133 | //----------------------------------------------------------------- | |
fe4da5cc | 2134 | // charged particle is in the sensitive volume |
37831078 | 2135 | //----------------------------------------------------------------- |
fe4da5cc | 2136 | |
cfce8870 | 2137 | if(gMC->TrackStep() > 0) { |
fe4da5cc | 2138 | |
73042f01 | 2139 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
fe4da5cc | 2140 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
2141 | ||
37831078 | 2142 | gMC->TrackPosition(p); |
2143 | hits[0]=p[0]; | |
2144 | hits[1]=p[1]; | |
2145 | hits[2]=p[2]; | |
fe4da5cc | 2146 | hits[3]=(Float_t)nel; |
2147 | ||
2148 | // Add this hit | |
2149 | ||
2150 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
2151 | ||
2152 | } | |
2153 | ||
2154 | // Stemax calculation for the next step | |
2155 | ||
2156 | Float_t pp; | |
0a6d8768 | 2157 | TLorentzVector mom; |
2158 | gMC->TrackMomentum(mom); | |
2159 | Float_t ptot=mom.Rho(); | |
73042f01 | 2160 | Float_t betaGamma = ptot/gMC->TrackMass(); |
fe4da5cc | 2161 | |
69e40cce | 2162 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 2163 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
fe4da5cc | 2164 | { |
73042f01 | 2165 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
fe4da5cc | 2166 | } |
2167 | else | |
2168 | { | |
73042f01 | 2169 | pp=kprim*BetheBloch(betaGamma); |
fe4da5cc | 2170 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
2171 | } | |
2172 | ||
2173 | Float_t random[1]; | |
cfce8870 | 2174 | gMC->Rndm(random,1); // good, old GRNDM from Geant3 |
fe4da5cc | 2175 | |
2176 | Double_t rnd = (Double_t)random[0]; | |
2177 | ||
cfce8870 | 2178 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); |
fe4da5cc | 2179 | |
2180 | } | |
2181 | ||
2182 | //_____________________________________________________________________________ | |
2183 | Float_t AliTPCv2::BetheBloch(Float_t bg) | |
2184 | { | |
2185 | // | |
2186 | // Bethe-Bloch energy loss formula | |
2187 | // | |
73042f01 | 2188 | const Double_t kp1=0.76176e-1; |
2189 | const Double_t kp2=10.632; | |
2190 | const Double_t kp3=0.13279e-4; | |
2191 | const Double_t kp4=1.8631; | |
2192 | const Double_t kp5=1.9479; | |
fe4da5cc | 2193 | |
2194 | Double_t dbg = (Double_t) bg; | |
2195 | ||
2196 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
2197 | ||
73042f01 | 2198 | Double_t aa = TMath::Power(beta,kp4); |
2199 | Double_t bb = TMath::Power(1./dbg,kp5); | |
fe4da5cc | 2200 | |
73042f01 | 2201 | bb=TMath::Log(kp3+bb); |
fe4da5cc | 2202 | |
73042f01 | 2203 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); |
fe4da5cc | 2204 | } |
73042f01 | 2205 | |
2206 |