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Add method SetParticleCode and enum type Code_t to handle both PDG (new ntuples)
[u/mrichter/AliRoot.git] / TPC / AliTPCv3.cxx
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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$Log$
a383b30d 18Revision 1.20 2000/11/14 10:48:57 kowal2
19Correct material used for TSA4. Thanks to J. Barbosa.
20
2c668420 21Revision 1.19 2000/11/06 17:24:10 kowal2
22Corrected bug in the outer containment vessel and
23the outer field cage geometry.
24Thanks to J. Barbosa.
25
720b23b8 26Revision 1.18 2000/11/02 16:55:24 kowal2
27Corrected bug in the inner containment vessel geometry.
28Thanks to J. Belikov
29
08db548a 30Revision 1.17 2000/11/02 07:24:11 kowal2
31Correction in the TPC geometry.
32Changes due to the new hit structure.
33
6a905708 34Revision 1.16 2000/10/02 21:28:18 fca
35Removal of useless dependecies via forward declarations
36
94de3818 37Revision 1.15 2000/07/10 20:57:39 hristov
38Update of TPC code and macros by M.Kowalski
39
37831078 40Revision 1.14 2000/06/30 12:07:50 kowal2
41Updated from the TPC-PreRelease branch
42
73042f01 43Revision 1.13.2.4 2000/06/26 07:39:42 kowal2
44Changes to obey the coding rules
45
46Revision 1.13.2.3 2000/06/25 08:38:41 kowal2
47Splitted from AliTPCtracking
48
49Revision 1.13.2.2 2000/06/16 12:58:13 kowal2
50Changed parameter settings
51
52Revision 1.13.2.1 2000/06/09 07:15:07 kowal2
53
54Defaults loaded automatically (hard-wired)
55Optional parameters can be set via macro called in the constructor
56
57Revision 1.13 2000/05/15 10:00:30 kowal2
58Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
59
e94dd9ca 60Revision 1.12 2000/04/17 09:37:33 kowal2
61removed obsolete AliTPCDigitsDisplay.C
62
cc80f89e 63Revision 1.11.8.2 2000/04/10 08:36:12 kowal2
64
65Updated readout chambers
66Some modifications to StepManager by M. Kowalski
67
68Revision 1.11.8.1 2000/04/10 07:56:53 kowal2
69Not used anymore - removed
70
71Revision 1.11 1999/11/04 17:28:07 fca
72Correct barrel part of HV Degrader
73
a5371c42 74Revision 1.10 1999/10/14 16:52:08 fca
75Only use PDG codes and not GEANT ones
76
69e40cce 77Revision 1.9 1999/10/08 06:27:23 fca
78Corrected bug in the HV degrader geometry, thanks to G.Tabary
79
d183a600 80Revision 1.8 1999/10/04 13:39:55 fca
81Correct array index problem
82
cdde5b1e 83Revision 1.7 1999/09/29 09:24:34 fca
84Introduction of the Copyright and cvs Log
85
4c039060 86*/
87
73042f01 88//
4b0fdcad 89///////////////////////////////////////////////////////////////////////////////
90// //
91// Time Projection Chamber version 3 -- detailed TPC and slow simulation //
37831078 92//
4b0fdcad 93//Begin_Html
94/*
95<img src="picts/AliTPCv3Class.gif">
96*/
97//End_Html
98// //
99// //
100///////////////////////////////////////////////////////////////////////////////
101
102#include <stdlib.h>
103#include <TMath.h>
4b0fdcad 104#include "AliTPCv3.h"
105#include "AliRun.h"
94de3818 106#include "AliMC.h"
4b0fdcad 107#include "AliConst.h"
cc80f89e 108#include "AliTPCDigitsArray.h"
109#include"AliTPCParam.h"
73042f01 110#include"AliTPCParamSR.h"
69e40cce 111#include "AliPDG.h"
73042f01 112#include <TInterpreter.h>
a383b30d 113#include "TLorentzVector.h"
4b0fdcad 114
115ClassImp(AliTPCv3)
116
117//_____________________________________________________________________________
118AliTPCv3::AliTPCv3(const char *name, const char *title) :
119 AliTPC(name, title)
120{
121 //
cc80f89e 122 // Standard constructor for Time Projection Chamber version 3
4b0fdcad 123 //
124
125 SetBufferSize(128000);
37831078 126 fIdSens=0;
73042f01 127
128 SetGasMixt(2,20,10,-1,0.9,0.1,0.);
129
130 if (fTPCParam)
131 fTPCParam->Write(fTPCParam->GetTitle());
4b0fdcad 132}
133
134//_____________________________________________________________________________
135void AliTPCv3::CreateGeometry()
136{
137 //
cc80f89e 138 // Creation of the TPC coarse geometry (version 3)
37831078 139 // The whole drift volume is sensitive
cc80f89e 140 // Origin Marek Kowalski Cracow
4b0fdcad 141 //
142 //Begin_Html
143 /*
37831078 144 <img src="picts/AliTPCgif">
4b0fdcad 145 */
146 //End_Html
147 //Begin_Html
148 /*
37831078 149 <img src="picts/AliTPCv3Tree.gif">
4b0fdcad 150 */
151 //End_Html
37831078 152 Float_t dm[50];
4b0fdcad 153
37831078 154 Int_t *idtmed = fIdtmed->GetArray(); // TPC media
1283eee5 155
37831078 156 Int_t idrotm[120]; // rotation matrices
1283eee5 157
37831078 158 Int_t nRotMat = 0; // actual number of rotation matrices
1283eee5 159
160
37831078 161 //
162 // Mother volume (Air) - all volumes will be positioned in it
163 //
164
165 dm[0]=0.;
166 dm[1]=360.;
167 dm[2]=12.;
1283eee5 168
37831078 169 //
170
171 dm[3]= -283.7;
172 dm[4]= 66.2;
173 dm[5]= 277.95;
1283eee5 174
37831078 175 //
1283eee5 176
37831078 177 dm[6]= -255.6;
178 dm[7]= 66.2;
179 dm[8]= 277.95;
1283eee5 180
37831078 181 //
1283eee5 182
37831078 183 dm[9]= -73.3;
184 dm[10]= 59.0;
185 dm[11]= 277.95;
1283eee5 186
37831078 187 //
1283eee5 188
37831078 189 dm[12]= -73.3;
190 dm[13]= 56.9;
191 dm[14]= 277.95;
4b0fdcad 192
37831078 193 //
1283eee5 194
37831078 195 dm[15]= -72.1;
196 dm[16]= 56.9;
197 dm[17]= 277.95;
4b0fdcad 198
37831078 199 //
1283eee5 200
37831078 201 dm[18]= -72.1;
202 dm[19]= 60.65;
203 dm[20]= 277.95;
1283eee5 204
37831078 205 //
1283eee5 206
37831078 207 dm[21]= 72.1;
208 dm[22]= 60.65;
209 dm[23]= 277.95;
1283eee5 210
37831078 211 //
1283eee5 212
37831078 213 dm[24]= 72.1;
214 dm[25]= 56.9;
215 dm[26]= 277.95;
1283eee5 216
37831078 217 //
1283eee5 218
37831078 219 dm[27]= 73.3;
220 dm[28]= 56.9;
221 dm[29]= 277.95;
1283eee5 222
37831078 223 //
1283eee5 224
37831078 225 dm[30]= 73.3;
226 dm[31]= 60.65;
227 dm[32]= 277.95;
1283eee5 228
37831078 229 //
1283eee5 230
37831078 231 dm[33]= 250.4;
232 dm[34]= 66.0;
233 dm[35]= 277.95;
1283eee5 234
37831078 235 //
1283eee5 236
37831078 237 dm[36]= 283.7;
238 dm[37]= 66.0;
239 dm[38]= 277.95;
1283eee5 240
1283eee5 241
37831078 242 gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
1283eee5 243
1283eee5 244
37831078 245 //-------------------------------------------------------------------
246 // Tpc Outer INsulator (CO2)
247 //-------------------------------------------------------------------
1283eee5 248
37831078 249 dm[0]= 0.;
250 dm[1]= 360.;
251 dm[2]= 6.;
1283eee5 252
37831078 253 //
254
255 dm[3]= -253.6;
256 dm[4]= 258.;
257 dm[5]= 266.65;
1283eee5 258
37831078 259 //
1283eee5 260
37831078 261 dm[6]= -253.;
262 dm[7]= 258.;
263 dm[8]= 266.65;
1283eee5 264
37831078 265 dm[9]= -253.;
266 dm[10]= 258.;
267 dm[11]= 277.97;
1283eee5 268
37831078 269 dm[12]= 253.6;
270 dm[13]= 258.;
271 dm[14]= 277.97;
1283eee5 272
37831078 273 //
1283eee5 274
37831078 275 dm[15]= 253.6;
276 dm[16]= 265.2;
277 dm[17]= 277.95;
1283eee5 278
37831078 279 //
1283eee5 280
37831078 281 dm[18]= 255.6;
282 dm[19]= 265.2;
283 dm[20]= 277.95;
1283eee5 284
1283eee5 285
37831078 286 gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
cc80f89e 287
37831078 288 //---------------------------------------------------------------
289 // shreds (G10) - TPC Rings
290 //---------------------------------------------------------------
1283eee5 291
37831078 292 gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
1283eee5 293
37831078 294 dm[0]= 258.;
295 dm[1]= 266.65;
296 dm[2]= 0.3;
1283eee5 297
37831078 298 gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
1283eee5 299
37831078 300 //
1283eee5 301
37831078 302 dm[0]= 258.;
303 dm[1]= 270.9;
304 dm[2]= 0.3;
1283eee5 305
37831078 306 gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
1283eee5 307
37831078 308 //
1283eee5 309
37831078 310 dm[0]= 272.2;
311 dm[1]= 277.95;
312 dm[2]= 0.3;
1283eee5 313
37831078 314 gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
1283eee5 315
37831078 316 //----------------------------------------------------------------
317 // Tpc Outer Contaiment Vessel
318 // mother volume - Al, daughters - composite (sandwich)
319 //----------------------------------------------------------------
320
321 dm[0]= 0.;
322 dm[1]= 360.;
720b23b8 323 dm[2]=6.;
1283eee5 324
37831078 325 //
1283eee5 326
37831078 327 dm[3]= -250.4;
328 dm[4]= 272.2;
329 dm[5]= 277.95;
1283eee5 330
37831078 331 //
1283eee5 332
37831078 333 dm[6]= -248.4;
334 dm[7]= 272.2;
335 dm[8]= 277.95;
1283eee5 336
37831078 337 //
1283eee5 338
720b23b8 339 dm[9]= -248.4;
340 dm[10]= 274.81;
37831078 341 dm[11]= 277.95;
1283eee5 342
37831078 343 //
1283eee5 344
37831078 345 dm[12]= 253.6;
720b23b8 346 dm[13]= 274.81;
37831078 347 dm[14]= 277.95;
1283eee5 348
720b23b8 349 //
37831078 350
720b23b8 351 dm[15]= 253.6;
37831078 352 dm[16]= 265.2;
353 dm[17]= 277.95;
1283eee5 354
720b23b8 355 //
356
357 dm[18]= 255.6;
358 dm[19]= 265.2;
359 dm[20]= 277.95;
360
361 gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
1283eee5 362
37831078 363 // Daughter volumes
364
365 // Tpc SAndwich 1 - Al
1283eee5 366
37831078 367 dm[0]= 274.81;
368 dm[1]= 277.95;
369 dm[2]= 251.7;
1283eee5 370
37831078 371 gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
1283eee5 372
37831078 373 // Tpc SAndwich 2 - Tedlar
1283eee5 374
37831078 375 dm[0] += 5.e-3;
376 dm[1] -= 5.e-3;
377
378 gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
379
380 // Tpc SAndwich 3 - Kevlar
381
382 dm[0] += 5e-3;
383 dm[1] -= 5.e-3;
384
385 gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
386
387 // Tpc SAndwich 4 - NOMEX honeycomb
388
389 dm[0] += 0.06;
390 dm[1] -= 0.06;
391
2c668420 392 gMC->Gsvolu("TSA4","TUBE",idtmed[6],dm,3);
37831078 393
394 // 4->3->2->1->TOCV
395
396 gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
397 gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
398 gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
399
400 gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
401
402 // TCOV-> TOIN
403
404 gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
405
406 //-------------------------------------------------------
407 // Tpc Outer Field Cage
408 // mother volume - Al, daughters - composite (sandwich)
409 //-------------------------------------------------------
1283eee5 410
37831078 411 dm[0]=0.;
412 dm[1]=360.;
413 dm[2]=6.;
1283eee5 414
37831078 415 dm[3]= -253.;
416 dm[4]= 258.;
417 dm[5]= 277.95;
1283eee5 418
37831078 419 //
420
421 dm[6]= -251.;
422 dm[7]= 258.;
423 dm[8]= 277.95;
1283eee5 424
425 //
37831078 426
427 dm[9]= -251.;
428 dm[10]= 258.;
429 dm[11]= 260.05;
430
1283eee5 431 //
432
37831078 433 dm[12]= 251.;
434 dm[13]= 258.;
435 dm[14]= 260.05;
1283eee5 436
37831078 437 //
1283eee5 438
37831078 439 dm[15]= 251.;
440 dm[16]= 258.;
720b23b8 441 dm[17]= 270.9;
1283eee5 442
37831078 443 //
1283eee5 444
37831078 445 dm[18]= 253.;
446 dm[19]= 258.;
447 dm[20]= 270.9;
448
449 gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
450
451 // Daughter volumes
452
6a905708 453 // Tpc SAndwich 5 - Tedlar
37831078 454
455 dm[0]= 258.;
456 dm[1]= 260.05;
457 dm[2]= 251.7;
458
6a905708 459 gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3);
37831078 460
6a905708 461 // Tpc SAndwich 6 - Kevlar
37831078 462
463 dm[0] += 5.e-3;
464 dm[1] -= 5.e-3;
465
6a905708 466 gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3);
1283eee5 467
1283eee5 468
6a905708 469 // Tpc SAndwich 7 - NOMEX
37831078 470
471 dm[0] += 0.02;
472 dm[1] -= 0.02;
473
6a905708 474 gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3);
37831078 475
6a905708 476 // 7->6->5->TOFC
37831078 477
37831078 478 gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
479 gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY");
480
481 gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
482
483 // TOFC->TOIN
484
485 gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
486
487 // TOIN->TPC
488
489 gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
490
491 //--------------------------------------------------------------------
492 // Tpc Inner INsulator (CO2)
493 //--------------------------------------------------------------------
494
495
496 dm[0]=0.;
497 dm[1]= 360.;
498 dm[2]= 15.;
1283eee5 499
500 //
37831078 501
502 dm[3]= -255.6;
503 dm[4]= 66.2;
504 dm[5]= 74.8;
505
1283eee5 506 //
507
37831078 508 Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
1283eee5 509
37831078 510 dm[6]= -253.6;
511 dm[7]= 59.0+ (253.6-73.3)*tanL;
512 dm[8]= 74.8;
1283eee5 513
37831078 514 //
1283eee5 515
37831078 516 dm[9]= -253.6;
517 dm[10]= dm[7];
518 dm[11]= 79.2;
1283eee5 519
37831078 520 //
1283eee5 521
37831078 522 dm[12]= -73.3;
523 dm[13]= 59.0;
524 dm[14]= 79.2;
1283eee5 525
37831078 526 //
1283eee5 527
37831078 528 dm[15]= -73.3;
529 dm[16]= 56.9;
530 dm[17]= 79.2;
1283eee5 531
37831078 532 //
1283eee5 533
37831078 534 dm[18]= -72.1;
535 dm[19]= 59.6;
536 dm[20]= 79.2;
1283eee5 537
37831078 538 //
1283eee5 539
37831078 540 dm[21]= -72.1;
541 dm[22]= 60.65;
542 dm[23]= 79.2;
1283eee5 543
37831078 544 //
1283eee5 545
37831078 546 dm[24]= 72.1;
547 dm[25]= 60.65;
548 dm[26]= 79.2;
1283eee5 549
37831078 550 //
1283eee5 551
37831078 552 dm[27]= 72.1;
553 dm[28]= 59.6;
554 dm[29]= 79.2;
1283eee5 555
37831078 556 //
1283eee5 557
37831078 558 dm[30]= 73.3;
559 dm[31]= 56.9;
560 dm[32]= 79.2;
1283eee5 561
37831078 562 //
1283eee5 563
37831078 564 dm[33]= 73.3;
565 dm[34]= 59.0;
566 dm[35]= 79.2;
1283eee5 567
37831078 568 //
1283eee5 569
37831078 570 dm[36]= 250.4;
571 dm[37]= 66.0;
572 dm[38]= 79.2;
1283eee5 573
37831078 574 //
4b0fdcad 575
37831078 576 dm[39]= 253.0;
577 dm[40]= 66.0;
578 dm[41]= 79.2;
1283eee5 579
37831078 580 //
1283eee5 581
37831078 582 dm[42]= 253.0;
583 dm[43]= 75.3;
584 dm[44]= 79.2;
1283eee5 585
37831078 586 //
1283eee5 587
37831078 588 dm[45]= 253.6;
589 dm[46]= 75.3;
590 dm[47]= 79.2;
1283eee5 591
37831078 592 gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
1283eee5 593
594
37831078 595 //--------------------------------------------------------------------
596 // Tpc Inner Containment vessel, Left part
597 // mother volume - Al, daughter - composite (sandwich)
598 //--------------------------------------------------------------------
1283eee5 599
37831078 600 dm[0]= 0.;
601 dm[1]= 360.;
602 dm[2]= 8.;
4b0fdcad 603
37831078 604 //
1283eee5 605
37831078 606 dm[3]= -255.6;
607 dm[4]= 66.2;
608 dm[5]= 74.8;
1283eee5 609
37831078 610 //
1283eee5 611
37831078 612 Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
613 Float_t sandThick = 2.14; // cone composite thickness
1283eee5 614
1283eee5 615
616 //
617
37831078 618 dm[6]= -253.6;
619 dm[7]= 59.0 + (253.6-73.3)*tanL;
620 dm[8]= 74.8;
1283eee5 621
37831078 622 //
1283eee5 623
37831078 624 dm[9]= -253.6;
625 dm[10]= dm[7];
626 dm[11]= dm[7]+sandThick/cosL;
1283eee5 627
37831078 628 //
1283eee5 629
37831078 630 dm[12]= -75.6;
631 dm[13]= 59.0+(75.6-73.3)*tanL;
632 dm[14]= dm[13]+sandThick/cosL;
1283eee5 633
37831078 634 //
1283eee5 635
37831078 636 dm[15]= -75.6;
637 dm[16]= dm[13];
638 dm[17]= 60.65;
1283eee5 639
37831078 640 //
1283eee5 641
37831078 642 dm[18]= -73.3;
643 dm[19]= 59.0;
644 dm[20]= 60.65;
1283eee5 645
37831078 646 //
1283eee5 647
37831078 648 dm[21]= -73.3;
649 dm[22]= 56.9;
650 dm[23]= 60.65;
1283eee5 651
37831078 652 //
1283eee5 653
37831078 654 dm[24]= -72.1;
655 dm[25]= 56.9;
656 dm[26]= 60.65;
1283eee5 657
37831078 658 gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
1283eee5 659
37831078 660 // Daughter volumes
1283eee5 661
37831078 662 // Tpc SAndwich 9 - Al
1283eee5 663
37831078 664 dm[0]= 0.;
665 dm[1]= 360.;
666 dm[2]= 2.;
1283eee5 667
37831078 668 //
1283eee5 669
37831078 670 dm[3]= - 254.3;
671 dm[4]= 59.0+(254.3-73.3)*tanL;
672 dm[5]= dm[4]+sandThick/cosL;
1283eee5 673
37831078 674 //
1283eee5 675
37831078 676 dm[6]= -78.3;
677 dm[7]= 59.0+(78.3-73.3)*tanL;
678 dm[8]= dm[7]+sandThick/cosL;
1283eee5 679
37831078 680 //
1283eee5 681
37831078 682 gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
1283eee5 683
37831078 684 // Tpc SAndwich 10 - Tedlar
1283eee5 685
37831078 686 dm[4]+= 5.e-3/cosL;
687 dm[5]-= 5.e-3/cosL;
1283eee5 688
37831078 689 //
1283eee5 690
37831078 691 dm[7]+= 5.e-3/cosL;
692 dm[8]+= 5.e-3/cosL;
1283eee5 693
37831078 694 gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9);
1283eee5 695
37831078 696 // Tpc SAndwich 11 - Kevlar
1283eee5 697
37831078 698 dm[4]+= 5.e-3/cosL;
699 dm[5]-= 5.e-3/cosL;
1283eee5 700
37831078 701 //
1283eee5 702
37831078 703 dm[7]+= 5.e-3/cosL;
704 dm[8]+= 5.e-3/cosL;
1283eee5 705
37831078 706 gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9);
1283eee5 707
37831078 708 // Tpc SAndwich 12 - NOMEX
1283eee5 709
37831078 710 dm[4]+= 0.06/cosL;
711 dm[5]-= 0.06/cosL;
1283eee5 712
37831078 713 //
1283eee5 714
37831078 715 dm[7]+= 0.06/cosL;
716 dm[8]+= 0.06/cosL;
1283eee5 717
37831078 718 gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);
1283eee5 719
37831078 720 // 12->11->10->9
1283eee5 721
37831078 722 gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
723 gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
724 gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
1283eee5 725
37831078 726 // TSA9->TICL
1283eee5 727
37831078 728 gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
1283eee5 729
37831078 730 //--------------------------------------------------------------------
731 // Tpc Inner Containment vessel, Right part
732 // mother volume - Al, daughter - composite (sandwich)
733 //--------------------------------------------------------------------
1283eee5 734
37831078 735 dm[0]= 0.;
736 dm[1]= 360.;
737 dm[2]=8.;
1283eee5 738
37831078 739 //
1283eee5 740
37831078 741 dm[3]= 72.1;
742 dm[4]= 56.9;
743 dm[5]= 60.65;
1283eee5 744
37831078 745 //
1283eee5 746
37831078 747 dm[6]= 73.3;
748 dm[7]= 56.9;
749 dm[8]= 60.65;
1283eee5 750
37831078 751 //
1283eee5 752
37831078 753 dm[9]= 73.3;
754 dm[10]= 59.0;
755 dm[11]= 60.65;
1283eee5 756
37831078 757 //
1283eee5 758
37831078 759 Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
760 Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
1283eee5 761
37831078 762 //
1283eee5 763
37831078 764 dm[12]= 75.6;
765 dm[13]= 59.0+(75.6-73.3)*tanR;
766 dm[14]= 60.65;
1283eee5 767
4b0fdcad 768 //
37831078 769
770 dm[15]= 75.6;
771 dm[16]= dm[13];
772 dm[17]= dm[16]+sandThick/cosR;
773
4b0fdcad 774 //
775
37831078 776 dm[18]= 248.4;
777 dm[19]= 59.0+(248.4-73.3)*tanR;
778 dm[20]= dm[19]+sandThick/cosR;
4b0fdcad 779
4b0fdcad 780 //
37831078 781
782 dm[21]= 248.4;
783 dm[22]= dm[19];
784 dm[23]= 70.2;
785
4b0fdcad 786 //
4b0fdcad 787
37831078 788 dm[24]= 250.4;
789 dm[25]= 66.0;
790 dm[26]= 70.2;
791
792 gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
793
794
795
796 // Daughter volumes
797
798 // Tpc SAndwich 13 - Al
799
800 dm[0]= 0.;
801 dm[1]= 360.;
802 dm[2]= 2.;
803
4b0fdcad 804 //
37831078 805
806 dm[3]= 78.3;
807 dm[4]= 59.0+(78.3-73.3)*tanR;
808 dm[5]= dm[4]+sandThick/cosR;
809
4b0fdcad 810 //
811
37831078 812 dm[6]= 249.1;
813 dm[7]= 59.0+(249.1-73.3)*tanR;
814 dm[8]= dm[7]+sandThick/cosR;
4b0fdcad 815
816 //
37831078 817
818 gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
819
820 // Tpc SAndwich 14 - Tedlar
821
822 dm[4]+= 5.e-3/cosR;
823 dm[5]-= 5.e-3/cosR;
824
4b0fdcad 825 //
4b0fdcad 826
37831078 827 dm[7]+= 5.e-3/cosR;
828 dm[8]+= 5.e-3/cosR;
829
830 gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9);
831
832 // Tpc SAndwich 15 - Kevlar
833
834 dm[4]+= 5.e-3/cosR;
835 dm[5]-= 5.e-3/cosR;
836
4b0fdcad 837 //
37831078 838
839 dm[7]+= 5.e-3/cosR;
840 dm[8]+= 5.e-3/cosR;
841
842 gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9);
843
844 // Tpc SAndwich 16 - NOMEX
845
846 dm[4]+= 0.06/cosR;
847 dm[5]-= 0.06/cosR;
848
4b0fdcad 849 //
37831078 850
851 dm[7]+= 0.06/cosR;
852 dm[8]+= 0.06/cosR;
853
854 gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);
855
856 // 16->15->14->13
857
858 gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
859 gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
860 gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
861
862 // TS12->TICR
863
864 gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
865
866 //------------------------------------------------------
867 // Tpc Inner Field Cage
868 // mother volume - Al, daughters - composite (sandwich)
869 //------------------------------------------------------
870
871 dm[0]= 0.;
872 dm[1]= 360.;
873 dm[2]=6.;
874
875 //
876
877 dm[3]= -253.0;
878 dm[4]= 70.7;
879 dm[5]= 79.2;
880
881 //
882
883 dm[6]= -251.0;
884 dm[7]= 70.7;
885 dm[8]= 79.2;
886
887 //
888
889 dm[9]= -251.0;
890 dm[10]= 77.15;
891 dm[11]= 79.2;
892
893 //
894
895 dm[12]= 251.0;
896 dm[13]= 77.15;
897 dm[14]= 79.2;
898
899 //
900
901 dm[15]= 251.0;
902 dm[16]= 66.0;
903 dm[17]= 79.2;
904
905 //
906
907 dm[18]= 253.0;
908 dm[19]= 66.0;
909 dm[20]= 79.2;
910
911 gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
912
913 // Daughter volumes
914
6a905708 915 // Tpc Sandwich 17 - Tedlar
37831078 916
917 dm[0]= 77.15;
918 dm[1]= 79.2;
919 dm[2]= 251.7;
920
6a905708 921 gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
37831078 922
6a905708 923 // Tpc Sandwich 18 - Kevlar
37831078 924
925 dm[0]+= 5.e-3;
926 dm[1]-= 5.e-3;
927
6a905708 928 gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3);
37831078 929
37831078 930
6a905708 931 // Tpc Sandwich 19 - NOMEX
37831078 932
6a905708 933 dm[0]+= 0.02;
934 dm[1]-= 0.02;
37831078 935
6a905708 936 gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
37831078 937
6a905708 938 // 19->18->17
37831078 939
37831078 940 gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
941 gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
942
943 // TS17->TIFC
944
945 gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
946
947 // TPC Rings
948
949 dm[0]= 70.7;
950 dm[1]= 79.2;
951 dm[2]= 0.3;
952
953 gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
954
955 dm[0]= 66.0;
956 dm[1]= 70.2;
957
958 gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
959
960 dm[0]= 75.3;
961 dm[1]= 79.2;
962
963 gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);
964
965 // TICL->TIIN
966
967 gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
968
969 // TICR->TIIN
970
971 gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
972
973 // TIFC->TIIN
974
975 gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
976
977 // Tpc Sandwich 21 - Al (central barrel)
978
08db548a 979 dm[0]= 60.65;
980 dm[1]= 61.21;
37831078 981 dm[2]= 75.2;
982
983 gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
984
985 // Tpc Sandwich 22 - Tedlar (central barrel)
986
987 dm[0]+= 5.e-3;
988 dm[1]-= 5.e-3;
989
990 gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3);
991
992 // Tpc Sandwich 23 - Kevlar (central barrel)
993
994 dm[0]+= 5.e-3;
995 dm[1]-= 5.e-3;
996
997 gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3);
998
999 // Tpc Sandwich 24 - NOMEX (central barrel)
1000
1001 dm[0]+= 0.02;
1002 dm[1]-= 0.02;
1003
1004 gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3);
1005
1006 // 24->23->22->21
1007
1008 gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
1009 gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
1010 gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
1011
1012 gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1013
1014 // put everything into the TPC
1015
1016 gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1017
1018
1019 //---------------------------------------------------------
1020 // Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1021 // and its daughters (HV membrane, rods, readout chambers)
1022 //---------------------------------------------------------
1023
1024 dm[0]= 79.2;
1025 dm[1]= 258.0;
1026 dm[2]= 253.6;
1027
1028 gMC->Gsvolu("TDGS","TUBE",idtmed[2],dm,3);
1029
1030 // sector opening angles
1031
1032 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1033
1034 // sector angle shift
1035
1036 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1037
1038 // number of sectors
1039
1040 Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1041 Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1042
1043 // All above parameters are identical for inner and outer
1044 // sectors. The distinction is kept for the historical reasons
1045 // and eventually will disappear.
1046
1047 Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1048 Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1049 Float_t space;
1050
1051 //-------------------------------------------------------------------------
1052 // Tpc Inner Readout Chambers
1053 //-------------------------------------------------------------------------
1054
1055 dm[0]= 14.483;
1056 dm[1]= 23.3345;
1057 dm[2]= 1.6; // thickness
1058 dm[3]= 25.1;
1059
1060 gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1061
1062 // this volume will be positioned in the empty space
1063 // of the end-cap to avoid overlaps
1064
1065 dm[0]= 13.7305;
1066 dm[1]= 21.1895;
1067 dm[2]= 2.25;
1068 dm[3]= 21.15;
1069
1070 gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1071
1072
1073 //------------------------------------------------
1074 // Tpc Inner readout chamber Pad Plane
1075 //------------------------------------------------
1076
1077 dm[0]= 14.483;
1078 dm[1]= 23.3345;
1079 dm[2]= 0.5;
1080 dm[3]= 25.1;
1081
1082 gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1083
1084 //
1085
1086 dm[0] -= 1.218511934;
1087 dm[1] -= 1.218511934;
1088 dm[2] = 0.35;
1089
1090 gMC->Gsvolu("TIC3","TRD1",idtmed[2],dm,4);
1091
1092 gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1093
1094 gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1095
1096
1097 //----------------------------------------------
1098 // Tpc Readout Chambers Empty spaces - for both
1099 // inner and outer sectors
1100 //----------------------------------------------
1101
1102 gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1103
1104 // Inner sector - 4 spaces
1105
1106
1107 dm[3] = 4.7625;
1108 dm[0] = 12.472;
1109
1110 Float_t rr = 90.52;
1111 Float_t zz;
1112
1113 zz= -12.7875;
1114
1115 space = rr*tanAlpha-dm[0];
1116
1117 for(Int_t nsLow=0;nsLow<4;nsLow++){
1118
1119 rr += 9.525;
1120 dm[1]= rr*tanAlpha - space;
1121
1122 dm[2]=0.8;
1123
1124 gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1125
1126 //
1127
1128 dm[2]= 1.2;
1129
1130 gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1131
1132 rr += 0.4;
1133 dm[0] = rr*tanAlpha - space;
1134 zz += (0.4+9.525);
1135
1136 }
1137
1138 dm[0]= 12.472;
1139 // dm[1] - this is the dm[1] from the previous TRCE
1140 dm[2]= 1.05;
1141 dm[3]= 19.65;
1142
1143 gMC->Gsposp("TRCE",9,"TIC1",0.,-1.,0.,0,"ONLY",dm,4);
1144
1145 //
1146 // TPc Space for Connectors
1147 //
1148
1149 dm[0]= .3;
1150 dm[1]= .3;
1151 dm[2]= 4.5;
1152
1153 gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1154
1155 // TPC Connectors
1156
1157 dm[0]= .25;
1158 dm[1]= .15;
1159 dm[2]= 3.75;
1160
1161 gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1162
1163 gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1164
1165 zz = -12.7875;
1166
1167
1168 Float_t alpha;
1169 Float_t astep;
1170
1171 Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1172
1173 // inner part of the inner sector - 2 x 20 holes
1174
1175 astep = 20.00096874/19.;
1176
1177 alpha = 10.00048437-astep;
1178
1179 Float_t x1,x2;
1180
1181 x1 = 13.31175725;
1182 x1 -= 0.996357832;
1183
1184 x2 = 15.06180253;
1185 x2 -= 1.163028812;
1186
1187 Int_t ncon;
1188
1189 for(ncon=0;ncon<20;ncon++){
1190
1191 phi1 = 0.;
1192 theta1 = 90.+alpha;
1193 phi2=90.;
1194 theta2 = 90.;
1195 phi3 = (alpha>0) ? 0. : 180.;
1196 theta3 = TMath::Abs(alpha);
1197
1198 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1199
1200
1201
1202 gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1203 gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1204
1205
1206 x1 -= 1.296357833;
1207 x2 -= 1.463028812;
1208
1209 alpha -= astep;
1210 nRotMat++;
1211
1212 }
1213
1214 // outer part of the inner sector - 2 x 25 holes
1215
1216 astep = 20.00096874/24.;
1217 alpha = 10.00048437-astep;
1218
1219 x1 = 16.81184781;
1220 x1 -= 1.016295986;
1221
1222 x2 = 18.5618931;
1223 x2 -= 1.150914854;
1224
1225 for(ncon=0;ncon<25;ncon++){
1226
1227 phi1 = 0.;
1228 theta1 = 90.+alpha;
1229 phi2=90.;
1230 theta2 = 90.;
1231 phi3 = (alpha>0) ? 0. : 180.;
1232 theta3 = TMath::Abs(alpha);
1233
1234 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1235
1236
1237
1238 gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1239 gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1240
1241
1242 x1 -= 1.316295986;
1243 x2 -= 1.450914854;
1244
1245 alpha -= astep;
1246 nRotMat++;
1247
1248 }
1249
1250 //--------------------------------------------------------------------------
1251 // TPC Outer Readout Chambers
1252 // this is NOT a final design
1253 //--------------------------------------------------------------------------
1254
1255 dm[0]= 23.3875;
1256 dm[1]= 43.524;
1257 dm[2]= 1.5; //thickness
1258 dm[3]= 57.1;
1259
1260 gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1261
1262 //------------------------------------------------
1263 // Tpc Outerr readout chamber Pad Plane
1264 //------------------------------------------------
1265
1266 dm[2]= 0.5;
1267
1268 gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1269
1270 dm[0] -= 1.218511934;
1271 dm[1] -= 1.218511934;
1272 dm[2] = 0.35;
1273
1274 gMC->Gsvolu("TOC3","TRD1",idtmed[2],dm,4);
1275
1276 gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1277
1278 gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1279
1280 // empty space
1281
1282
1283 dm[0]= 21.035;
1284 dm[1]= 38.7205;
1285 dm[2]= 0.7;
1286 dm[3]= 50.15;
1287
1288 gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1289
1290 dm[0]= 22.2935;
1291 dm[1]= 40.5085;
1292 dm[2]= 2.25;
1293 dm[3]= 51.65;
1294
1295 gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1296
1297
1298 dm[0]= 21.35;
1299 dm[1]= 38.7205;
1300 dm[2]= 2.25;
1301 dm[3]= 50.15;
1302
1303 gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1304
1305
1306 //-----------------------------------------------
1307 // Tpc Services Support Wheel
1308 //-----------------------------------------------
1309
1310 dm[0]=0.;
1311 dm[1]=360.;
1312 dm[2]=18.;
1313 dm[3]=2.;
1314
1315 dm[4]= -5.;
1316 dm[5]= 77.017;
1317 dm[6]= 255.267;
1318
1319 dm[7]= 5.;
1320 dm[8]= dm[5];
1321 dm[9]= dm[6];
1322
1323 gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1324
1325 // Tpc Services Wheel Cover
1326
1327 dm[4]= -0.5;
1328 dm[7]= 0.5;
1329
1330 gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1331
1332 // Tpc Service wheel Cover Empty space
1333
1334 dm[0]= 10.99;
1335 dm[1]= 39.599;
1336 dm[2]= .5;
1337 dm[3]= 81.125;
1338
1339 gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1340
1341 // Tpc services Wheel Empty Spaces
1342
1343 dm[0]= 13.18017507;
1344 dm[1]= 44.61045938;
1345 dm[2]= 4.;
1346 dm[3]= 89.125;
1347
1348 gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1349
1350 // Tpc Services Wheel Bars
1351
1352 gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1353
1354 // bars-> TWES
1355
1356 dm[2]= 4.;
1357 dm[3]= .4;
1358
1359 dm[0]= 13.8149522;
1360 dm[1]= 13.95601379;
1361
1362 gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1363
1364 dm[0]= 43.83462067;
1365 dm[1]= 43.97568225;
1366
1367 gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1368
1369 // TPc ELectronics - right now 30% X0 Si
1370
1371 dm[0]= 14.03813696;
1372 dm[1]= 43.3524075;
1373 dm[2]= 1.404;
1374 dm[3]= 83.125;
1375
1376 gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1377 gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1378
1379
1380 //--------------------------------------------------------------------------
1381 // End caps
1382 //--------------------------------------------------------------------------
1383
1384 // TPc Main Wheel - Al
1385
1386 dm[0]= 75.3;
1387 dm[1]= 264.8;
1388 dm[2]= 3.0;
1389
1390 gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1391
1392 // TPc Extra Wheel (to avoid overlapping) - Al
1393
1394 dm[0]= 264.8;
1395 dm[1]= 277.0;
1396 dm[2]= 1.95;
1397
1398 gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1399
1400 //--------------------------------------------------------------------------
1401 // Tpc Empty Space for the Readout chambers
1402 //--------------------------------------------------------------------------
1403
1404 Float_t rLow= 86.2;
1405 Float_t rUp= 243.5;
1406 Float_t dR = 0.5*(rUp-rLow);
1407
1408 space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1409
1410 dm[0]= rLow*tanAlpha-space;
1411 dm[1]= rUp*tanAlpha-space;
1412 dm[2]= 3.0;
1413 dm[3]= dR;
1414
1415 gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1416
1417 // TIC1->TESR
1418
1419
1420 gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1421
1422
1423 // TOC1->TESR
1424
1425 gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1426
1427 // Tpc Empty Space Bars - Al (daughters of TESR)
1428
1429 Float_t zBar;
1430
1431 gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1432
1433 // lower bar
1434
1435 dm[0]= rLow*tanAlpha-space;
1436 dm[1]= 88.7*tanAlpha-space;
1437 dm[2]= 0.95;
1438 dm[3]= 1.275;
1439
1440 zBar = -dR+dm[3];
1441
1442 gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1443
1444 // middle bar
1445
1446 dm[0]= 131.65*tanAlpha-space;
1447 dm[1]= 136.5*tanAlpha-space;
1448 dm[3]= 2.425;
1449
1450 zBar = -dR +131.65+dm[3]-rLow;
1451
1452 gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1453
1454 // upper bar
1455
1456 dm[0]= 240.4*tanAlpha-space;
1457 dm[1]= rUp*tanAlpha-space;
1458 dm[3]= 1.55;
1459
1460 zBar = dR-dm[3];
1461
1462 gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1463
1464 // positioning of the empty spaces into the main wheel
1465
1466 Float_t rCenter,xc,yc;
1467 Float_t rInner,rOuter; // center of the inner and outer chamber
1468
1469 rCenter = rLow+dR;
1470
1471 rInner = 108.07;
1472 rOuter = 190.68;
1473
1474 for(Int_t ns=0; ns<nInnerSector;ns++){
1475
1476 phi1 = ns * innerOpenAngle + innerAngleShift;
1477 phi1 *= kRaddeg; // in degrees
1478
1479 phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1480
1481 if (phi1 > 360.) phi1 -= 360.;
1482
1483 theta1 = 90.;
1484 phi2 = 90.;
1485 theta2 = 180.;
1486 phi3 = ns * innerOpenAngle + innerAngleShift;
1487 phi3 *= kRaddeg; // in degrees
1488
1489 phi3 = (Float_t)TMath::Nint(phi3);
1490
1491 if(phi3 > 360.) phi3 -= 360.;
1492
1493 theta3 = 90.;
1494
1495 // "holes"->End plate
1496
1497 xc = rCenter*TMath::Cos(phi3*kDegrad);
1498 yc = rCenter*TMath::Sin(phi3*kDegrad);
1499
1500 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1501
1502 gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1503
1504 // TSCE->TSWC (services wheel volumes)
1505
1506 xc = 166.142*TMath::Cos(phi3*kDegrad);
1507 yc = 166.142*TMath::Sin(phi3*kDegrad);
1508
1509 gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1510 gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1511
1512
1513 // readout chambers->TDGS (drift gas)
1514
1515 xc = rInner*TMath::Cos(phi3*kDegrad);
1516 yc = rInner*TMath::Sin(phi3*kDegrad);
1517
1518 gMC->Gspos("TIRC",ns+1,"TDGS",xc,yc,252.,idrotm[nRotMat],"ONLY");
1519
1520 xc = rOuter*TMath::Cos(phi3*kDegrad);
1521 yc = rOuter*TMath::Sin(phi3*kDegrad);
1522
1523 gMC->Gspos("TORC",ns+1,"TDGS",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1524
1525 nRotMat++;
1526
1527 theta2 = 0.; // reflection
1528
1529 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1530
1531 xc = rInner*TMath::Cos(phi3*kDegrad);
1532 yc = rInner*TMath::Sin(phi3*kDegrad);
1533
1534 gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGS",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1535
1536 xc = rOuter*TMath::Cos(phi3*kDegrad);
1537 yc = rOuter*TMath::Sin(phi3*kDegrad);
1538
1539 gMC->Gspos("TORC",ns+nOuterSector+1,"TDGS",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1540
1541 nRotMat++;
1542
1543
1544 }
1545
1546
1547 // reflection matrix
1548
1549 theta1 = 90.;
1550 phi1 = 0.;
1551 theta2 = 90.;
1552 phi2 = 270.;
1553 theta3 = 180.;
1554 phi3 = 0.;
1555
1556 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1557
1558
1559 // TPMW->TPC
1560
1561 gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1562 gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1563 gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1564 gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY");
1565
1566
1567
1568 //-------------------------------------------------------
1569 // Tpc High Voltage Membrane - NOMEX honeycomb
1570 //-------------------------------------------------------
1571
1572 dm[0]=0.,
1573 dm[1]=360.;
1574 dm[2]=18.;
1575 dm[3]=2.;
1576
1577 //
1578
1579 dm[4]= -0.3;
1580 dm[5]= 81.156;
1581 dm[6]= 253.386;
1582
1583 //
1584
1585 dm[7]= 0.3;
1586 dm[8]= dm[5];
1587 dm[9]= dm[6];
1588
1589 gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1590
1591 gMC->Gspos("THVM",1,"TDGS",0.,0.,0.,0,"ONLY");
1592
1593 //----------------------------------------------------------
1594 // TPc Support Rods - MAKROLON
1595 //----------------------------------------------------------
1596
1597 dm[0]= 0.9;
1598 dm[1]= 1.2;
1599 dm[2]= 126.65;
1600
1601 gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1602
1603 for(Int_t nrod=1;nrod<18;nrod++){
1604 Float_t angle=innerOpenAngle*(Float_t)nrod;
1605
1606 xc=82.4*TMath::Cos(angle);
1607 yc=82.4*TMath::Sin(angle);
1608
1609 gMC->Gspos("TPSR",nrod,"TDGS",xc,yc,126.95,0,"ONLY");
1610 gMC->Gspos("TPSR",nrod+17,"TDGS",xc,yc,-126.95,0,"ONLY");
1611
1612 xc=254.2*TMath::Cos(angle);
1613 yc=254.2*TMath::Sin(angle);
1614
1615 gMC->Gspos("TPSR",nrod+34,"TDGS",xc,yc,126.95,0,"ONLY");
1616 gMC->Gspos("TPSR",nrod+51,"TDGS",xc,yc,-126.95,0,"ONLY");
1617
1618 }
1619
1620 //----------------------------------------------------------
1621 // Tpc High Voltage rod - MAKROLON + Copper cable
1622 //----------------------------------------------------------
1623
1624 // rod with cable (Left)
1625
1626 dm[0]=0.;
1627 dm[1]=2.25;
1628 dm[2]=126.65;
1629
1630 gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1631
1632 // HV cable
1633
1634 dm[0]=0.;
1635 dm[1]=0.3;
1636 dm[2]=126.65;
1637
1638 gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1639
1640 // empty space
1641
1642 dm[0]=0.3;
1643 dm[1]=1.;
1644 dm[2]=126.65;
1645
1646 gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1647
1648 gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1649 gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1650
1651 // rod without cable
1652
1653 dm[0]=1.8;
1654 dm[1]=2.25;
1655 dm[2]=126.65;
1656
1657 gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1658
1659
1660
1661 gMC->Gspos("THVL",1,"TDGS",82.4,0.,-126.95,0,"ONLY");
1662 gMC->Gspos("THVL",2,"TDGS",254.2,0.,-126.95,0,"ONLY");
1663
1664 gMC->Gspos("THVR",1,"TDGS",82.4,0.,126.95,0,"ONLY");
1665 gMC->Gspos("THVR",2,"TDGS",254.2,0.,126.95,0,"ONLY");
1666
1667
1668
1669 gMC->Gspos("TDGS",1,"TPC ",0.,0.,0.,0,"ONLY");
1670
1671 // services wheel cover -> wheel
1672
1673
1674 gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1675 gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1676
1677
1678 // put the wheel into the TPC
1679
1680 gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1681 gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1682
1683 gMC->Gsord("TPMW",6);
1684 gMC->Gsord("TSSW",6);
1685 gMC->Gsord("TSWC",6);
1686
1687 // put the TPC into ALIC (main mother volume)
1688
1689 gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1690
1691
1692} // end of function
37831078 1693
1694//_____________________________________________________________________________
1695void AliTPCv3::DrawDetector()
1696{
1697 //
1698 // Draw a shaded view of the Time Projection Chamber version 1
1699 //
1700
1701
1702 // Set everything unseen
1703 gMC->Gsatt("*", "seen", -1);
1704 //
1705 // Set ALIC mother transparent
1706 gMC->Gsatt("ALIC","SEEN",0);
1707 //
1708 // Set the volumes visible
1709 //
1710
1711 gMC->Gsatt("TPC ","SEEN",0);
1712 gMC->Gsatt("TOIN","SEEN",1);
1713 gMC->Gsatt("TOIN","COLO",7);
1714 gMC->Gsatt("TPCR","SEEN",0);
1715 gMC->Gsatt("TOCV","SEEN",1);
1716 gMC->Gsatt("TOCV","COLO",4);
1717 gMC->Gsatt("TSA1","SEEN",0);
1718 gMC->Gsatt("TSA2","SEEN",0);
1719 gMC->Gsatt("TSA3","SEEN",0);
1720 gMC->Gsatt("TSA4","SEEN",0);
1721 gMC->Gsatt("TOFC","SEEN",1);
1722 gMC->Gsatt("TOFC","COLO",4);
1723 gMC->Gsatt("TSA5","SEEN",0);
1724 gMC->Gsatt("TSA6","SEEN",0);
1725 gMC->Gsatt("TSA7","SEEN",0);
37831078 1726 gMC->Gsatt("TIIN","COLO",7);
1727 gMC->Gsatt("TIIN","SEEN",1);
1728 gMC->Gsatt("TICL","SEEN",0);
1729 gMC->Gsatt("TSA9","SEEN",0);
1730 gMC->Gsatt("TS10","SEEN",0);
1731 gMC->Gsatt("TS11","SEEN",0);
1732 gMC->Gsatt("TS12","SEEN",0);
1733 gMC->Gsatt("TICR","SEEN",0);
1734 gMC->Gsatt("TS13","SEEN",0);
1735 gMC->Gsatt("TS14","SEEN",0);
1736 gMC->Gsatt("TS15","SEEN",0);
1737 gMC->Gsatt("TS16","SEEN",0);
1738 gMC->Gsatt("TIFC","SEEN",1);
1739 gMC->Gsatt("TIFC","COLO",4);
1740 gMC->Gsatt("TS17","SEEN",0);
1741 gMC->Gsatt("TS18","SEEN",0);
1742 gMC->Gsatt("TS19","SEEN",0);
37831078 1743 gMC->Gsatt("TS21","SEEN",0);
1744 gMC->Gsatt("TS22","SEEN",0);
1745 gMC->Gsatt("TS23","SEEN",0);
1746 gMC->Gsatt("TS24","SEEN",0);
1747 gMC->Gsatt("TDGS","SEEN",0);
1748 gMC->Gsatt("TIRC","SEEN",0);
1749 gMC->Gsatt("TIC1","SEEN",1);
1750 gMC->Gsatt("TIPP","SEEN",0);
1751 gMC->Gsatt("TIC3","SEEN",0);
1752 gMC->Gsatt("TRCE","SEEN",0);
1753 gMC->Gsatt("TPSC","SEEN",0);
1754 gMC->Gsatt("TPCC","SEEN",0);
1755 gMC->Gsatt("TORC","SEEN",0);
1756 gMC->Gsatt("TOPP","SEEN",0);
1757 gMC->Gsatt("TOC3","SEEN",0);
1758 gMC->Gsatt("TOC1","SEEN",1);
1759 gMC->Gsatt("TSSW","SEEN",1);
1760 gMC->Gsatt("TSWC","SEEN",1);
1761 gMC->Gsatt("TSCE","SEEN",1);
1762 gMC->Gsatt("TSSW","COLO",3);
1763 gMC->Gsatt("TSWC","COLO",3);
1764 gMC->Gsatt("TSCE","COLO",6);
1765 gMC->Gsatt("TWES","SEEN",0);
1766 gMC->Gsatt("TSWB","SEEN",0);
1767 gMC->Gsatt("TPEL","SEEN",0);
1768 gMC->Gsatt("TPMW","SEEN",1);
1769 gMC->Gsatt("TPEW","SEEN",1);
1770 gMC->Gsatt("TESR","SEEN",1);
1771 gMC->Gsatt("TPMW","COLO",12);
1772 gMC->Gsatt("TPEW","COLO",12);
1773 gMC->Gsatt("TWES","COLO",5);
1774 gMC->Gsatt("TIC1","COLO",5);
1775 gMC->Gsatt("TOC1","COLO",5);
1776 gMC->Gsatt("TESB","SEEN",0);
1777 gMC->Gsatt("TPLS","SEEN",0);
1778 gMC->Gsatt("TPUS","SEEN",0);
1779 gMC->Gsatt("TPSS","SEEN",0);
1780 gMC->Gsatt("THVM","SEEN",1);
1781 gMC->Gsatt("THVM","COLO",11);
1782 gMC->Gsatt("TPSR","SEEN",0);
1783 gMC->Gsatt("THVL","SEEN",0);
1784 gMC->Gsatt("THVC","SEEN",0);
1785 gMC->Gsatt("THVE","SEEN",0);
1786 gMC->Gsatt("THVR","SEEN",0);
1787
1788 //
1789 gMC->Gdopt("hide", "on");
1790 gMC->Gdopt("shad", "on");
1791 gMC->Gsatt("*", "fill", 7);
1792 gMC->SetClipBox(".");
1793 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1794 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1795 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1796 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1797 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1798 gMC->DefaultRange();
1799 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1800 gMC->Gdhead(1111, "Time Projection Chamber");
1801 gMC->Gdman(18, 4, "MAN");
1802 gMC->Gdopt("hide","off");
1803}
1804
1805//_____________________________________________________________________________
1806void AliTPCv3::CreateMaterials()
1807{
1808 //
1809 // Define materials for version 2 of the Time Projection Chamber
1810 //
1811
1812
1813 //
1814 AliTPC::CreateMaterials();
1815}
1816
1817//_____________________________________________________________________________
1818void AliTPCv3::Init()
1819{
1820 //
1821 // Initialises version 3 of the TPC after that it has been built
1822 //
1823 Int_t *idtmed = fIdtmed->GetArray();
4b0fdcad 1824
1825 AliTPC::Init();
1826
37831078 1827 fIdSens=gMC->VolId("TDGS"); // drift gas as a sensitive volume
4b0fdcad 1828
1829 gMC->SetMaxNStep(30000); // max. number of steps increased
1830
37831078 1831 gMC->Gstpar(idtmed[2],"LOSS",5);
4b0fdcad 1832
1833 printf("*** TPC version 3 initialized ***\n");
1834 printf("Maximum number of steps = %d\n",gMC->GetMaxNStep());
1835
1836 //
1837
1838}
1839
1840//_____________________________________________________________________________
1841void AliTPCv3::StepManager()
1842{
1843 //
1844 // Called for every step in the Time Projection Chamber
1845 //
1846
1847 //
1848 // parameters used for the energy loss calculations
1849 //
73042f01 1850 const Float_t kprim = 14.35; // number of primary collisions per 1 cm
1851 const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2
1852 const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation
4b0fdcad 1853
1854
73042f01 1855 const Float_t kbig = 1.e10;
4b0fdcad 1856
1857 Int_t id,copy;
1858 TLorentzVector pos;
1859 Float_t hits[4];
1860 Int_t vol[2];
1861 TClonesArray &lhits = *fHits;
1862
1863 vol[1]=0;
1864 vol[0]=0;
1865
1866 //
1867
73042f01 1868 gMC->SetMaxStep(kbig);
4b0fdcad 1869
1870 if(!gMC->IsTrackAlive()) return; // particle has disappeared
1871
1872 Float_t charge = gMC->TrackCharge();
1873
1874 if(TMath::Abs(charge)<=0.) return; // take only charged particles
1875
1876
1877 id=gMC->CurrentVolID(copy);
1878
1879 // Check the sensitive volume
1880
37831078 1881 if (id != fIdSens) return;
4b0fdcad 1882
1883 //
1884 // charged particle is in the sensitive volume
1885 //
1886
1887 if(gMC->TrackStep() > 0) {
1888
1889
73042f01 1890 Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1;
4b0fdcad 1891 nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV
1892
1893 gMC->TrackPosition(pos);
1894 hits[0]=pos[0];
1895 hits[1]=pos[1];
1896 hits[2]=pos[2];
1897
1898 //
1899 // check the selected side of the TPC
1900 //
1901
1902 if(fSide && fSide*hits[2]<=0.) return;
1903
1904 hits[3]=(Float_t)nel;
1905
1906 // Add this hit
1907
1908 new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1909
1910 }
1911
1912 // Stemax calculation for the next step
1913
1914 Float_t pp;
1915 TLorentzVector mom;
1916 gMC->TrackMomentum(mom);
1917 Float_t ptot=mom.Rho();
73042f01 1918 Float_t betaGamma = ptot/gMC->TrackMass();
4b0fdcad 1919
69e40cce 1920 Int_t pid=gMC->TrackPid();
cc80f89e 1921 if((pid==kElectron || pid==kPositron) && ptot > 0.002)
4b0fdcad 1922 {
73042f01 1923 pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau!
4b0fdcad 1924 }
1925 else
1926 {
73042f01 1927 pp=kprim*BetheBloch(betaGamma);
4b0fdcad 1928 if(TMath::Abs(charge) > 1.) pp *= (charge*charge);
1929 }
1930
1931 Float_t random[1];
1932 gMC->Rndm(random,1); // good, old GRNDM from Geant3
1933
1934 Double_t rnd = (Double_t)random[0];
1935
1936 gMC->SetMaxStep(-TMath::Log(rnd)/pp);
1937
1938}
1939
1940//_____________________________________________________________________________
1941Float_t AliTPCv3::BetheBloch(Float_t bg)
1942{
1943 //
1944 // Bethe-Bloch energy loss formula
1945 //
73042f01 1946 const Double_t kp1=0.76176e-1;
1947 const Double_t kp2=10.632;
1948 const Double_t kp3=0.13279e-4;
1949 const Double_t kp4=1.8631;
1950 const Double_t kp5=1.9479;
4b0fdcad 1951
1952 Double_t dbg = (Double_t) bg;
1953
1954 Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg);
1955
73042f01 1956 Double_t aa = TMath::Power(beta,kp4);
1957 Double_t bb = TMath::Power(1./dbg,kp5);
4b0fdcad 1958
73042f01 1959 bb=TMath::Log(kp3+bb);
4b0fdcad 1960
73042f01 1961 return ((Float_t)((kp2-aa-bb)*kp1/aa));
4b0fdcad 1962}