TPC/AliTPCv0.cxx

   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 $Log$
  18 Revision 1.20  2000/11/06 17:24:10  kowal2
  19 Corrected bug in the outer containment vessel and
  20 the outer field cage geometry.
  21 Thanks to J. Barbosa.
  22
  23 Revision 1.19  2000/11/02 16:55:24  kowal2
  24 Corrected bug in the inner containment vessel geometry.
  25 Thanks to J. Belikov
  26
  27 Revision 1.18  2000/11/02 07:24:11  kowal2
  28 Correction in the TPC geometry.
  29 Changes due to the new hit structure.
  30
  31 Revision 1.17  2000/07/10 20:57:39  hristov
  32 Update of TPC code and macros by M.Kowalski
  33
  34 Revision 1.16  2000/06/30 12:07:50  kowal2
  35 Updated from the TPC-PreRelease branch
  36
  37 Revision 1.15.2.4  2000/06/26 07:39:42  kowal2
  38 Changes to obey the coding rules
  39
  40 Revision 1.15.2.3  2000/06/25 08:38:41  kowal2
  41 Splitted from AliTPCtracking
  42
  43 Revision 1.15.2.2  2000/06/16 12:58:13  kowal2
  44 Changed parameter settings
  45
  46 Revision 1.15.2.1  2000/06/09 07:15:07  kowal2
  47
  48 Defaults loaded automatically (hard-wired)
  49 Optional parameters can be set via macro called in the constructor
  50
  51 Revision 1.15  2000/05/15 10:00:30  kowal2
  52 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  53
  54 Revision 1.14  2000/04/17 09:37:33  kowal2
  55 removed obsolete AliTPCDigitsDisplay.C
  56
  57 Revision 1.13.8.2  2000/04/10 08:33:44  kowal2
  58
  59 Updated readout chambers
  60
  61 Revision 1.13.8.1  2000/04/10 07:56:53  kowal2
  62 Not used anymore - removed
  63
  64 Revision 1.13  1999/11/04 17:28:06  fca
  65 Correct barrel part of HV Degrader
  66
  67 Revision 1.12  1999/10/08 06:27:23  fca
  68 Corrected bug in the HV degrader geometry, thanks to G.Tabary
  69
  70 Revision 1.11  1999/10/04 13:39:54  fca
  71 Correct array index problem
  72
  73 Revision 1.10  1999/09/29 09:24:34  fca
  74 Introduction of the Copyright and cvs Log
  75
  76 */
  77 //
  78
  79 ///////////////////////////////////////////////////////////////////////////////
  80 //                                                                           //
  81 //  Time Projection Chamber version 0 -- "coarse" TPC                        //
  82 //                                                                           //
  83 //Begin_Html
  84 /*
  85 <img src="picts/AliTPCv0Class.gif">
  86 */
  87 //End_Html
  88 //                                                                           //
  89 //                                                                           //
  90 ///////////////////////////////////////////////////////////////////////////////
  91
  92 #include <TMath.h>
  93 #include <TGeometry.h>
  94 #include <TNode.h>
  95 #include <TTUBE.h>
  96 #include "AliTPCv0.h"
  97 #include "AliRun.h"
  98 #include <iostream.h>
  99 #include <fstream.h>
 100 #include "AliMC.h"
 101 #include "AliConst.h"
 102
 103 #include "AliTPCParamSR.h"
 104 #include "AliTPCDigitsArray.h"
 105
 106 ClassImp(AliTPCv0)
 107
 108 //_____________________________________________________________________________
 109 AliTPCv0::AliTPCv0(const char *name, const char *title)
 110          :AliTPC(name, title)
 111 {
 112   //
 113   // Standard creator for TPC version 0
 114   //
 115
 116   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 117
 118   if (fTPCParam)
 119      fTPCParam->Write(fTPCParam->GetTitle());
 120 }
 121
 122 //_____________________________________________________________________________
 123 void AliTPCv0::CreateGeometry()
 124 {
 125   //
 126   // Creation of the TPC version 0, i.e. no sensitive volumes,
 127   // only the material distribution
 128   //
 129   //Begin_Html
 130   /*
 131     <img src="picts/AliTPC.gif">
 132   */
 133   //End_Html
 134   //Begin_Html
 135   /*
 136     <img src="picts/AliTPCv0Tree.gif">
 137   */
 138   //End_Html
 139
 140   //---------------------------------------------------------------
 141   //  TPC geometry
 142   //
 143   //  Origin: Marek Kowalski, INP Cracow
 144   //  Marek.Kowalski@ifj.edu.pl
 145   //---------------------------------------------------------------
 146
 147   Float_t dm[50];
 148
 149   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 150
 151   Int_t idrotm[120]; // rotation matrices
 152
 153   Int_t nRotMat = 0; // actual number of rotation matrices
 154
 155
 156   //
 157   //  Mother volume (Air) - all volumes will be positioned in it
 158   //
 159
 160   dm[0]=0.;
 161   dm[1]=360.;
 162   dm[2]=12.;
 163
 164   //
 165
 166   dm[3]= -283.7;
 167   dm[4]= 66.2;
 168   dm[5]= 277.95;
 169
 170   //
 171
 172   dm[6]= -255.6;
 173   dm[7]= 66.2;
 174   dm[8]= 277.95;
 175
 176   //
 177
 178   dm[9]= -73.3;
 179   dm[10]= 59.0;
 180   dm[11]= 277.95;
 181
 182   //
 183
 184   dm[12]= -73.3;
 185   dm[13]= 56.9;
 186   dm[14]= 277.95;
 187
 188   //
 189
 190   dm[15]= -72.1;
 191   dm[16]= 56.9;
 192   dm[17]= 277.95;
 193
 194   //
 195
 196   dm[18]= -72.1;
 197   dm[19]= 60.65;
 198   dm[20]= 277.95;
 199
 200   //
 201
 202   dm[21]= 72.1;
 203   dm[22]= 60.65;
 204   dm[23]= 277.95;
 205
 206   //
 207
 208   dm[24]= 72.1;
 209   dm[25]= 56.9;
 210   dm[26]= 277.95;
 211
 212   //
 213
 214   dm[27]= 73.3;
 215   dm[28]= 56.9;
 216   dm[29]= 277.95;
 217
 218   //
 219
 220   dm[30]= 73.3;
 221   dm[31]= 60.65;
 222   dm[32]= 277.95;
 223
 224   //
 225
 226   dm[33]= 250.4;
 227   dm[34]= 66.0;
 228   dm[35]= 277.95;
 229
 230   //
 231
 232   dm[36]= 283.7;
 233   dm[37]= 66.0;
 234   dm[38]= 277.95;
 235
 236
 237   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
 238
 239
 240   //-------------------------------------------------------------------
 241   //  Tpc Outer INsulator (CO2)
 242   //-------------------------------------------------------------------
 243
 244   dm[0]= 0.;
 245   dm[1]= 360.;
 246   dm[2]= 6.;
 247
 248   //
 249
 250   dm[3]= -253.6;
 251   dm[4]= 258.;
 252   dm[5]= 266.65;
 253
 254   //
 255
 256   dm[6]= -253.;
 257   dm[7]= 258.;
 258   dm[8]= 266.65;
 259
 260   dm[9]= -253.;
 261   dm[10]= 258.;
 262   dm[11]= 277.97;
 263
 264   dm[12]= 253.6;
 265   dm[13]= 258.;
 266   dm[14]= 277.97;
 267
 268   //
 269
 270   dm[15]= 253.6;
 271   dm[16]= 265.2;
 272   dm[17]= 277.95;
 273
 274   //
 275
 276   dm[18]= 255.6;
 277   dm[19]= 265.2;
 278   dm[20]= 277.95;
 279
 280
 281   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 282
 283   //---------------------------------------------------------------
 284   // shreds (G10) - TPC Rings
 285   //---------------------------------------------------------------
 286
 287   gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
 288
 289   dm[0]= 258.;
 290   dm[1]= 266.65;
 291   dm[2]= 0.3;
 292
 293   gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
 294
 295   //
 296
 297   dm[0]= 258.;
 298   dm[1]= 270.9;
 299   dm[2]= 0.3;
 300
 301   gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
 302
 303   //
 304
 305   dm[0]= 272.2;
 306   dm[1]= 277.95;
 307   dm[2]= 0.3;
 308
 309   gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
 310
 311   //----------------------------------------------------------------
 312   // Tpc Outer Contaiment Vessel
 313   //  mother volume - Al, daughters - composite (sandwich)
 314   //----------------------------------------------------------------
 315
 316   dm[0]= 0.;
 317   dm[1]= 360.;
 318   dm[2]=6.;
 319
 320   //
 321
 322   dm[3]= -250.4;
 323   dm[4]= 272.2;
 324   dm[5]= 277.95;
 325
 326   //
 327
 328   dm[6]= -248.4;
 329   dm[7]= 272.2;
 330   dm[8]= 277.95;
 331
 332   //
 333   dm[9]= -248.4;
 334   dm[10]= 274.81;
 335   dm[11]= 277.95;
 336
 337
 338   //
 339
 340   dm[12]= 253.6;
 341   dm[13]= 274.81;
 342   dm[14]= 277.95;
 343
 344   //
 345
 346   dm[15]= 253.6;
 347   dm[16]= 265.2;
 348   dm[17]= 277.95;
 349
 350   //
 351
 352   dm[18]= 255.6;
 353   dm[19]= 265.2;
 354   dm[20]= 277.95;
 355
 356   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
 357
 358   // Daughter volumes
 359
 360   // Tpc SAndwich 1 - Al
 361
 362   dm[0]= 274.81;
 363   dm[1]= 277.95;
 364   dm[2]= 251.7;
 365
 366   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 367
 368   // Tpc SAndwich 2 - Tedlar
 369
 370   dm[0] += 5.e-3;
 371   dm[1] -= 5.e-3;
 372
 373   gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
 374
 375   // Tpc SAndwich 3 - Kevlar
 376
 377   dm[0] += 5e-3;
 378   dm[1] -= 5.e-3;
 379
 380   gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
 381
 382   // Tpc SAndwich 4 - NOMEX honeycomb
 383
 384   dm[0] += 0.06;
 385   dm[1] -= 0.06;
 386
 387   gMC->Gsvolu("TSA4","TUBE",idtmed[6],dm,3);
 388
 389   // 4->3->2->1->TOCV
 390
 391   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 392   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 393   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 394
 395   gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
 396
 397   // TCOV-> TOIN
 398
 399   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 400
 401   //-------------------------------------------------------
 402   //  Tpc Outer Field Cage
 403   //  mother volume - Al, daughters - composite (sandwich)
 404   //-------------------------------------------------------
 405
 406   dm[0]=0.;
 407   dm[1]=360.;
 408   dm[2]=6.;
 409
 410   dm[3]= -253.;
 411   dm[4]= 258.;
 412   dm[5]= 277.95;
 413
 414   //
 415
 416   dm[6]= -251.;
 417   dm[7]= 258.;
 418   dm[8]= 277.95;
 419
 420   //
 421
 422   dm[9]= -251.;
 423   dm[10]= 258.;
 424   dm[11]= 260.05;
 425
 426   //
 427
 428   dm[12]= 251.;
 429   dm[13]= 258.;
 430   dm[14]= 260.05;
 431
 432   //
 433
 434   dm[15]= 251.;
 435   dm[16]= 258.;
 436   dm[17]= 270.9;
 437
 438   //
 439
 440   dm[18]= 253.;
 441   dm[19]= 258.;
 442   dm[20]= 270.9;
 443
 444   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 445
 446   // Daughter volumes
 447
 448   // Tpc SAndwich 5 - Tedlar
 449
 450   dm[0]= 258.;
 451   dm[1]= 260.05;
 452   dm[2]= 251.7;
 453
 454   gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3);
 455
 456   // Tpc SAndwich 6 - Kevlar
 457
 458   dm[0] += 5.e-3;
 459   dm[1] -= 5.e-3;
 460
 461   gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3);
 462
 463
 464   // Tpc SAndwich 7 - NOMEX
 465
 466   dm[0] += 0.02;
 467   dm[1] -= 0.02;
 468
 469   gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3);
 470
 471   // 7->6->5->TOFC
 472
 473   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 474   gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY");
 475
 476   gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
 477
 478   // TOFC->TOIN
 479
 480   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 481
 482   // TOIN->TPC
 483
 484   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 485
 486   //--------------------------------------------------------------------
 487   // Tpc Inner INsulator (CO2)
 488   //--------------------------------------------------------------------
 489
 490
 491   dm[0]=0.;
 492   dm[1]= 360.;
 493   dm[2]= 15.;
 494
 495   //
 496
 497   dm[3]= -255.6;
 498   dm[4]= 66.2;
 499   dm[5]= 74.8;
 500
 501   //
 502
 503   Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
 504
 505   dm[6]= -253.6;
 506   dm[7]= 59.0+ (253.6-73.3)*tanL;
 507   dm[8]= 74.8;
 508
 509   //
 510
 511   dm[9]= -253.6;
 512   dm[10]= dm[7];
 513   dm[11]= 79.2;
 514
 515   //
 516
 517   dm[12]= -73.3;
 518   dm[13]= 59.0;
 519   dm[14]= 79.2;
 520
 521   //
 522
 523   dm[15]= -73.3;
 524   dm[16]= 56.9;
 525   dm[17]= 79.2;
 526
 527   //
 528
 529   dm[18]= -72.1;
 530   dm[19]= 59.6;
 531   dm[20]= 79.2;
 532
 533   //
 534
 535   dm[21]= -72.1;
 536   dm[22]= 60.65;
 537   dm[23]= 79.2;
 538
 539   //
 540
 541   dm[24]= 72.1;
 542   dm[25]= 60.65;
 543   dm[26]= 79.2;
 544
 545   //
 546
 547   dm[27]= 72.1;
 548   dm[28]= 59.6;
 549   dm[29]= 79.2;
 550
 551   //
 552
 553   dm[30]= 73.3;
 554   dm[31]= 56.9;
 555   dm[32]= 79.2;
 556
 557   //
 558
 559   dm[33]= 73.3;
 560   dm[34]= 59.0;
 561   dm[35]= 79.2;
 562
 563   //
 564
 565   dm[36]= 250.4;
 566   dm[37]= 66.0;
 567   dm[38]= 79.2;
 568
 569   //
 570
 571   dm[39]= 253.0;
 572   dm[40]= 66.0;
 573   dm[41]= 79.2;
 574
 575   //
 576
 577   dm[42]= 253.0;
 578   dm[43]= 75.3;
 579   dm[44]= 79.2;
 580
 581   //
 582
 583   dm[45]= 253.6;
 584   dm[46]= 75.3;
 585   dm[47]= 79.2;
 586
 587   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
 588
 589
 590   //--------------------------------------------------------------------
 591   //  Tpc Inner Containment vessel, Left part
 592   //  mother volume - Al, daughter - composite (sandwich)
 593   //--------------------------------------------------------------------
 594
 595   dm[0]= 0.;
 596   dm[1]= 360.;
 597   dm[2]= 8.;
 598
 599   //
 600
 601   dm[3]= -255.6;
 602   dm[4]= 66.2;
 603   dm[5]= 74.8;
 604
 605   //
 606
 607   Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
 608   Float_t sandThick = 2.14; // cone composite thickness
 609
 610
 611   //
 612
 613   dm[6]= -253.6;
 614   dm[7]= 59.0 + (253.6-73.3)*tanL;
 615   dm[8]= 74.8;
 616
 617   //
 618
 619   dm[9]= -253.6;
 620   dm[10]= dm[7];
 621   dm[11]= dm[7]+sandThick/cosL;
 622
 623   //
 624
 625   dm[12]= -75.6;
 626   dm[13]= 59.0+(75.6-73.3)*tanL;
 627   dm[14]= dm[13]+sandThick/cosL;
 628
 629   //
 630
 631   dm[15]= -75.6;
 632   dm[16]= dm[13];
 633   dm[17]= 60.65;
 634
 635   //
 636
 637   dm[18]= -73.3;
 638   dm[19]= 59.0;
 639   dm[20]= 60.65;
 640
 641   //
 642
 643   dm[21]= -73.3;
 644   dm[22]= 56.9;
 645   dm[23]= 60.65;
 646
 647   //
 648
 649   dm[24]= -72.1;
 650   dm[25]= 56.9;
 651   dm[26]= 60.65;
 652
 653   gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
 654
 655   // Daughter volumes
 656
 657   // Tpc SAndwich 9 - Al
 658
 659   dm[0]= 0.;
 660   dm[1]= 360.;
 661   dm[2]= 2.;
 662
 663   //
 664
 665   dm[3]= - 254.3;
 666   dm[4]= 59.0+(254.3-73.3)*tanL;
 667   dm[5]= dm[4]+sandThick/cosL;
 668
 669   //
 670
 671   dm[6]= -78.3;
 672   dm[7]= 59.0+(78.3-73.3)*tanL;
 673   dm[8]= dm[7]+sandThick/cosL;
 674
 675   //
 676
 677   gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
 678
 679   // Tpc SAndwich 10 - Tedlar
 680
 681   dm[4]+= 5.e-3/cosL;
 682   dm[5]-= 5.e-3/cosL;
 683
 684   //
 685
 686   dm[7]+= 5.e-3/cosL;
 687   dm[8]+= 5.e-3/cosL;
 688
 689   gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9);
 690
 691   // Tpc SAndwich 11 - Kevlar
 692
 693   dm[4]+= 5.e-3/cosL;
 694   dm[5]-= 5.e-3/cosL;
 695
 696   //
 697
 698   dm[7]+= 5.e-3/cosL;
 699   dm[8]+= 5.e-3/cosL;
 700
 701   gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9);
 702
 703   // Tpc SAndwich 12 - NOMEX
 704
 705   dm[4]+= 0.06/cosL;
 706   dm[5]-= 0.06/cosL;
 707
 708   //
 709
 710   dm[7]+= 0.06/cosL;
 711   dm[8]+= 0.06/cosL;
 712
 713   gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);
 714
 715   // 12->11->10->9
 716
 717   gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
 718   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 719   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 720
 721   // TSA9->TICL
 722
 723   gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
 724
 725   //--------------------------------------------------------------------
 726   //  Tpc Inner Containment vessel, Right part
 727   //  mother volume - Al, daughter - composite (sandwich)
 728   //--------------------------------------------------------------------
 729
 730   dm[0]= 0.;
 731   dm[1]= 360.;
 732   dm[2]=8.;
 733
 734   //
 735
 736   dm[3]= 72.1;
 737   dm[4]= 56.9;
 738   dm[5]= 60.65;
 739
 740   //
 741
 742   dm[6]= 73.3;
 743   dm[7]= 56.9;
 744   dm[8]= 60.65;
 745
 746   //
 747
 748   dm[9]= 73.3;
 749   dm[10]= 59.0;
 750   dm[11]= 60.65;
 751
 752   //
 753
 754   Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
 755   Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
 756
 757   //
 758
 759   dm[12]= 75.6;
 760   dm[13]= 59.0+(75.6-73.3)*tanR;
 761   dm[14]= 60.65;
 762
 763   //
 764
 765   dm[15]= 75.6;
 766   dm[16]= dm[13];
 767   dm[17]= dm[16]+sandThick/cosR;
 768
 769   //
 770
 771   dm[18]= 248.4;
 772   dm[19]= 59.0+(248.4-73.3)*tanR;
 773   dm[20]= dm[19]+sandThick/cosR;
 774
 775   //
 776
 777   dm[21]= 248.4;
 778   dm[22]= dm[19];
 779   dm[23]= 70.2;
 780
 781   //
 782
 783   dm[24]= 250.4;
 784   dm[25]= 66.0;
 785   dm[26]= 70.2;
 786
 787   gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
 788
 789
 790
 791   // Daughter volumes
 792
 793   // Tpc SAndwich 13 - Al
 794
 795   dm[0]= 0.;
 796   dm[1]= 360.;
 797   dm[2]= 2.;
 798
 799   //
 800
 801   dm[3]= 78.3;
 802   dm[4]= 59.0+(78.3-73.3)*tanR;
 803   dm[5]= dm[4]+sandThick/cosR;
 804
 805   //
 806
 807   dm[6]= 249.1;
 808   dm[7]= 59.0+(249.1-73.3)*tanR;
 809   dm[8]= dm[7]+sandThick/cosR;
 810
 811   //
 812
 813   gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
 814
 815   // Tpc SAndwich 14 - Tedlar
 816
 817   dm[4]+= 5.e-3/cosR;
 818   dm[5]-= 5.e-3/cosR;
 819
 820   //
 821
 822   dm[7]+= 5.e-3/cosR;
 823   dm[8]+= 5.e-3/cosR;
 824
 825   gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9);
 826
 827   // Tpc SAndwich 15 - Kevlar
 828
 829   dm[4]+= 5.e-3/cosR;
 830   dm[5]-= 5.e-3/cosR;
 831
 832   //
 833
 834   dm[7]+= 5.e-3/cosR;
 835   dm[8]+= 5.e-3/cosR;
 836
 837   gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9);
 838
 839   // Tpc SAndwich 16 - NOMEX
 840
 841   dm[4]+= 0.06/cosR;
 842   dm[5]-= 0.06/cosR;
 843
 844   //
 845
 846   dm[7]+= 0.06/cosR;
 847   dm[8]+= 0.06/cosR;
 848
 849   gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);
 850
 851   // 16->15->14->13
 852
 853   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 854   gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
 855   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 856
 857   // TS12->TICR
 858
 859   gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
 860
 861   //------------------------------------------------------
 862   // Tpc Inner Field Cage
 863   // mother volume - Al, daughters - composite (sandwich)
 864   //------------------------------------------------------
 865
 866   dm[0]= 0.;
 867   dm[1]= 360.;
 868   dm[2]=6.;
 869
 870   //
 871
 872   dm[3]= -253.0;
 873   dm[4]= 70.7;
 874   dm[5]= 79.2;
 875
 876   //
 877
 878   dm[6]= -251.0;
 879   dm[7]= 70.7;
 880   dm[8]= 79.2;
 881
 882   //
 883
 884   dm[9]= -251.0;
 885   dm[10]= 77.15;
 886   dm[11]= 79.2;
 887
 888   //
 889
 890   dm[12]= 251.0;
 891   dm[13]= 77.15;
 892   dm[14]= 79.2;
 893
 894   //
 895
 896   dm[15]= 251.0;
 897   dm[16]= 66.0;
 898   dm[17]= 79.2;
 899
 900   //
 901
 902   dm[18]= 253.0;
 903   dm[19]= 66.0;
 904   dm[20]= 79.2;
 905
 906   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
 907
 908   // Daughter volumes
 909
 910   // Tpc Sandwich 17 - Tedlar
 911
 912   dm[0]= 77.15;
 913   dm[1]= 79.2;
 914   dm[2]= 251.7;
 915
 916   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
 917
 918   // Tpc Sandwich 18 - Kevlar
 919
 920   dm[0]+= 5.e-3;
 921   dm[1]-= 5.e-3;
 922
 923   gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3);
 924
 925
 926   // Tpc Sandwich 19 - NOMEX
 927
 928   dm[0]+= 0.02;
 929   dm[1]-= 0.02;
 930
 931   gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
 932
 933   // 19->18->17
 934
 935   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 936   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 937
 938   // TS17->TIFC
 939
 940   gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
 941
 942   // TPC Rings
 943
 944   dm[0]= 70.7;
 945   dm[1]= 79.2;
 946   dm[2]= 0.3;
 947
 948   gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
 949
 950   dm[0]= 66.0;
 951   dm[1]= 70.2;
 952
 953   gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
 954
 955   dm[0]= 75.3;
 956   dm[1]= 79.2;
 957
 958   gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);
 959
 960   // TICL->TIIN
 961
 962   gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
 963
 964   // TICR->TIIN
 965
 966   gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
 967
 968   // TIFC->TIIN
 969
 970   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 971
 972   // Tpc Sandwich 21 - Al (central barrel)
 973
 974   dm[0]= 60.65;
 975   dm[1]= 61.21;
 976   dm[2]= 75.2;
 977
 978   gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
 979
 980   // Tpc Sandwich 22 - Tedlar (central barrel)
 981
 982   dm[0]+= 5.e-3;
 983   dm[1]-= 5.e-3;
 984
 985   gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3);
 986
 987   // Tpc Sandwich 23 - Kevlar (central barrel)
 988
 989   dm[0]+= 5.e-3;
 990   dm[1]-= 5.e-3;
 991
 992   gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3);
 993
 994   // Tpc Sandwich 24 - NOMEX (central barrel)
 995
 996   dm[0]+= 0.02;
 997   dm[1]-= 0.02;
 998
 999   gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3);
1000
1001   // 24->23->22->21
1002
1003   gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
1004   gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
1005   gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
1006
1007   gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1008
1009   // put everything into the TPC
1010
1011   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1012
1013
1014   //---------------------------------------------------------
1015   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1016   //  and its daughters (HV membrane, rods, readout chambers)
1017   //---------------------------------------------------------
1018
1019   dm[0]= 79.2;
1020   dm[1]= 258.0;
1021   dm[2]= 253.6;
1022
1023   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
1024
1025   // sector opening angles
1026
1027   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1028
1029   // sector angle shift
1030
1031   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1032
1033   // number of sectors
1034
1035   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1036   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1037
1038   // All above parameters are identical for inner and outer
1039   // sectors. The distinction is kept for the historical reasons
1040   // and eventually will disappear.
1041
1042   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1043   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1044   Float_t space;
1045
1046   //-------------------------------------------------------------------------
1047   //   Tpc Inner Readout Chambers
1048   //-------------------------------------------------------------------------
1049
1050   dm[0]= 14.483;
1051   dm[1]= 23.3345;
1052   dm[2]= 1.6; // thickness
1053   dm[3]= 25.1;
1054
1055   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1056
1057   // this volume will be positioned in the empty space
1058   // of the end-cap to avoid overlaps
1059
1060   dm[0]= 13.7305;
1061   dm[1]= 21.1895;
1062   dm[2]= 2.25;
1063   dm[3]= 21.15;
1064
1065   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1066
1067
1068   //------------------------------------------------
1069   // Tpc Inner readout chamber Pad Plane
1070   //------------------------------------------------
1071
1072   dm[0]= 14.483;
1073   dm[1]= 23.3345;
1074   dm[2]= 0.5;
1075   dm[3]= 25.1;
1076
1077   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1078
1079   //
1080
1081   dm[0] -= 1.218511934;
1082   dm[1] -= 1.218511934;
1083   dm[2] = 0.35;
1084
1085   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
1086
1087   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1088
1089   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1090
1091
1092   //----------------------------------------------
1093   // Tpc Readout Chambers Empty spaces - for both
1094   // inner and outer sectors
1095   //----------------------------------------------
1096
1097   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1098
1099   // Inner sector - 4 spaces
1100
1101
1102   dm[3] = 4.7625;
1103   dm[0] = 12.472;
1104
1105   Float_t rr = 90.52;
1106   Float_t zz;
1107
1108   zz= -12.7875;
1109
1110   space = rr*tanAlpha-dm[0];
1111
1112   for(Int_t nsLow=0;nsLow<4;nsLow++){
1113
1114     rr += 9.525;
1115     dm[1]= rr*tanAlpha - space;
1116
1117     dm[2]=0.8;
1118
1119     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1120
1121     //
1122
1123     dm[2] = 1.2;
1124
1125     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1126
1127     rr += 0.4;
1128     dm[0] = rr*tanAlpha - space;
1129     zz += (0.4+9.525);
1130
1131   }
1132
1133   dm[0]= 12.472;
1134   // dm[1] - this is the dm[1] from the previous TRCE
1135   dm[2]= 1.05;
1136   dm[3]= 19.65;
1137
1138   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1139
1140   //
1141   // TPc Space for Connectors
1142   //
1143
1144   dm[0]= .3;
1145   dm[1]= .3;
1146   dm[2]= 4.5;
1147
1148   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1149
1150   // TPC Connectors
1151
1152   dm[0]= .25;
1153   dm[1]= .15;
1154   dm[2]= 3.75;
1155
1156   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1157
1158   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1159
1160   zz = -12.7875;
1161
1162
1163   Float_t alpha;
1164   Float_t astep;
1165
1166   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1167
1168   // inner part of the inner sector - 2 x 20 holes
1169
1170   astep = 20.00096874/19.;
1171
1172   alpha = 10.00048437-astep;
1173
1174   Float_t x1,x2;
1175
1176     x1 = 13.31175725;
1177     x1 -= 0.996357832;
1178
1179     x2 = 15.06180253;
1180     x2 -= 1.163028812;
1181
1182   Int_t ncon;
1183
1184   for(ncon=0;ncon<20;ncon++){
1185
1186     phi1 = 0.;
1187     theta1 = 90.+alpha;
1188     phi2=90.;
1189     theta2 = 90.;
1190     phi3 = (alpha>0) ? 0. : 180.;
1191     theta3 = TMath::Abs(alpha);
1192
1193     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1194
1195
1196
1197     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1198     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1199
1200
1201     x1 -= 1.296357833;
1202     x2 -= 1.463028812;
1203
1204     alpha -= astep;
1205     nRotMat++;
1206
1207   }
1208
1209   // outer part of the inner sector - 2 x 25 holes
1210
1211    astep = 20.00096874/24.;
1212    alpha = 10.00048437-astep;
1213
1214    x1 = 16.81184781;
1215    x1 -= 1.016295986;
1216
1217    x2 = 18.5618931;
1218    x2 -= 1.150914854;
1219
1220   for(ncon=0;ncon<25;ncon++){
1221
1222     phi1 = 0.;
1223     theta1 = 90.+alpha;
1224     phi2=90.;
1225     theta2 = 90.;
1226     phi3 = (alpha>0) ? 0. : 180.;
1227     theta3 = TMath::Abs(alpha);
1228
1229     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1230
1231
1232
1233     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1234     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1235
1236
1237     x1 -= 1.316295986;
1238     x2 -= 1.450914854;
1239
1240     alpha -= astep;
1241     nRotMat++;
1242
1243   }
1244
1245   //--------------------------------------------------------------------------
1246   //  TPC Outer Readout Chambers
1247   //  this is NOT a final design
1248   //--------------------------------------------------------------------------
1249
1250   dm[0]= 23.3875;
1251   dm[1]= 43.524;
1252   dm[2]= 1.5; //thickness
1253   dm[3]= 57.1;
1254
1255   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1256
1257   //------------------------------------------------
1258   // Tpc Outer readout chamber Pad Plane
1259   //------------------------------------------------
1260
1261   dm[2]= 0.5;
1262
1263   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1264
1265   dm[0] -= 1.218511934;
1266   dm[1] -= 1.218511934;
1267   dm[2] = 0.35;
1268
1269   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1270
1271   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1272
1273   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1274
1275   // empty space
1276
1277   dm[0]= 21.035;
1278   dm[1]= 38.7205;
1279   dm[2]= 0.7;
1280   dm[3]= 50.15;
1281
1282   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1283
1284   dm[0]= 22.2935;
1285   dm[1]= 40.5085;
1286   dm[2]= 2.25;
1287   dm[3]= 51.65;
1288
1289   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1290
1291   dm[0]= 21.35;
1292   dm[1]= 38.7205;
1293   dm[2]= 2.25;
1294   dm[3]= 50.15;
1295
1296   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1297
1298   //-----------------------------------------------
1299   // Tpc Services Support Wheel
1300   //-----------------------------------------------
1301
1302   dm[0]=0.;
1303   dm[1]=360.;
1304   dm[2]=18.;
1305   dm[3]=2.;
1306
1307   dm[4]= -5.;
1308   dm[5]= 77.017;
1309   dm[6]= 255.267;
1310
1311   dm[7]= 5.;
1312   dm[8]= dm[5];
1313   dm[9]= dm[6];
1314
1315   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1316
1317   // Tpc Services Wheel Cover
1318
1319   dm[4]= -0.5;
1320   dm[7]= 0.5;
1321
1322   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1323
1324   // Tpc Service wheel Cover Empty space
1325
1326   dm[0]= 10.99;
1327   dm[1]= 39.599;
1328   dm[2]= .5;
1329   dm[3]= 81.125;
1330
1331   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1332
1333   // Tpc services Wheel Empty Spaces
1334
1335   dm[0]= 13.18017507;
1336   dm[1]= 44.61045938;
1337   dm[2]= 4.;
1338   dm[3]= 89.125;
1339
1340   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1341
1342   // Tpc Services Wheel Bars
1343
1344   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1345
1346   // bars-> TWES
1347
1348   dm[2]= 4.;
1349   dm[3]= .4;
1350
1351   dm[0]= 13.8149522;
1352   dm[1]= 13.95601379;
1353
1354   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1355
1356   dm[0]= 43.83462067;
1357   dm[1]= 43.97568225;
1358
1359   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1360
1361   // TPc ELectronics - right now 30% X0 Si
1362
1363   dm[0]= 14.03813696;
1364   dm[1]= 43.3524075;
1365   dm[2]= 1.404;
1366   dm[3]= 83.125;
1367
1368   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1369   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1370
1371   //--------------------------------------------------------------------------
1372   //  End caps
1373   //--------------------------------------------------------------------------
1374
1375   // TPc Main Wheel - Al
1376
1377   dm[0]= 75.3;
1378   dm[1]= 264.8;
1379   dm[2]= 3.0;
1380
1381   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1382
1383   // TPc Extra Wheel (to avoid overlapping) - Al
1384
1385   dm[0]= 264.8;
1386   dm[1]= 277.0;
1387   dm[2]= 1.95;
1388
1389   gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1390
1391   //--------------------------------------------------------------------------
1392   //  Tpc Empty Space for the Readout chambers
1393   //--------------------------------------------------------------------------
1394
1395   Float_t rLow= 86.2;
1396   Float_t rUp= 243.5;
1397   Float_t dR = 0.5*(rUp-rLow);
1398
1399   space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1400
1401   dm[0]= rLow*tanAlpha-space;
1402   dm[1]= rUp*tanAlpha-space;
1403   dm[2] = 3.0;
1404   dm[3]= dR;
1405
1406   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1407
1408   // TIC1->TESR
1409
1410   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1411
1412   // TOC1->TESR
1413
1414   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1415
1416   // Tpc Empty Space Bars - Al (daughters of TESR)
1417
1418   Float_t zBar;
1419
1420   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1421
1422   // lower bar
1423
1424   dm[0]= rLow*tanAlpha-space;
1425   dm[1]= 88.7*tanAlpha-space;
1426   dm[2]= 0.95;
1427   dm[3]= 1.275;
1428
1429   zBar = -dR+dm[3];
1430
1431   gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1432
1433   // middle bar
1434
1435   dm[0]= 131.65*tanAlpha-space;
1436   dm[1]= 136.5*tanAlpha-space;
1437   dm[3]= 2.425;
1438
1439   zBar = -dR +131.65+dm[3]-rLow;
1440
1441   gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1442
1443   // upper bar
1444
1445   dm[0]= 240.4*tanAlpha-space;
1446   dm[1]= rUp*tanAlpha-space;
1447   dm[3]= 1.55;
1448
1449   zBar = dR-dm[3];
1450
1451   gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1452
1453   //  positioning of the empty spaces into the main wheel
1454
1455
1456
1457   Float_t rCenter,xc,yc;
1458   Float_t rInner,rOuter; // center of the inner and outer chamber
1459
1460   rCenter = rLow+dR;
1461
1462   rInner = 108.07;
1463   rOuter = 190.68;
1464
1465
1466   for(Int_t ns=0; ns<nInnerSector;ns++){
1467
1468     phi1 = ns * innerOpenAngle + innerAngleShift;
1469     phi1 *= kRaddeg; // in degrees
1470
1471     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1472
1473     if (phi1 > 360.) phi1 -= 360.;
1474
1475     theta1 = 90.;
1476     phi2   = 90.;
1477     theta2 = 180.;
1478     phi3   = ns * innerOpenAngle + innerAngleShift;
1479     phi3 *= kRaddeg; // in degrees
1480
1481     phi3 = (Float_t)TMath::Nint(phi3);
1482
1483     if(phi3 > 360.) phi3 -= 360.;
1484
1485     theta3 = 90.;
1486
1487     // "holes"->End plate
1488
1489     xc = rCenter*TMath::Cos(phi3*kDegrad);
1490     yc = rCenter*TMath::Sin(phi3*kDegrad);
1491
1492     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1493
1494     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1495
1496     // TSCE->TSWC (services wheel volumes)
1497
1498     xc = 166.142*TMath::Cos(phi3*kDegrad);
1499     yc = 166.142*TMath::Sin(phi3*kDegrad);
1500
1501     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1502     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1503
1504
1505     // readout chambers->TDGN (drift gas)
1506
1507     xc = rInner*TMath::Cos(phi3*kDegrad);
1508     yc = rInner*TMath::Sin(phi3*kDegrad);
1509
1510     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1511
1512     xc = rOuter*TMath::Cos(phi3*kDegrad);
1513     yc = rOuter*TMath::Sin(phi3*kDegrad);
1514
1515     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1516
1517     nRotMat++;
1518
1519     theta2 = 0.; // reflection
1520
1521     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1522
1523     xc = rInner*TMath::Cos(phi3*kDegrad);
1524     yc = rInner*TMath::Sin(phi3*kDegrad);
1525
1526     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1527
1528     xc = rOuter*TMath::Cos(phi3*kDegrad);
1529     yc = rOuter*TMath::Sin(phi3*kDegrad);
1530
1531     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1532
1533     nRotMat++;
1534
1535   }
1536
1537   // reflection matrix
1538
1539   theta1 = 90.;
1540   phi1   = 0.;
1541   theta2 = 90.;
1542   phi2   = 270.;
1543   theta3 = 180.;
1544   phi3   = 0.;
1545
1546   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1547
1548
1549   // TPMW->TPC
1550
1551   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1552   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1553   gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1554   gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY");
1555
1556
1557
1558   //-------------------------------------------------------
1559   // Tpc High Voltage Membrane - NOMEX honeycomb
1560   //-------------------------------------------------------
1561
1562   dm[0]=0.,
1563   dm[1]=360.;
1564   dm[2]=18.;
1565   dm[3]=2.;
1566
1567   //
1568
1569   dm[4]= -0.3;
1570   dm[5]= 81.156;
1571   dm[6]= 253.386;
1572
1573   //
1574
1575   dm[7]= 0.3;
1576   dm[8]= dm[5];
1577   dm[9]= dm[6];
1578
1579   gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1580
1581   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1582
1583   //----------------------------------------------------------
1584   // TPc Support Rods - MAKROLON
1585   //----------------------------------------------------------
1586
1587   dm[0]= 0.9;
1588   dm[1]= 1.2;
1589   dm[2]= 126.65;
1590
1591   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1592
1593   for(Int_t nrod=1;nrod<18;nrod++){
1594     Float_t angle=innerOpenAngle*(Float_t)nrod;
1595
1596     xc=82.4*TMath::Cos(angle);
1597     yc=82.4*TMath::Sin(angle);
1598
1599     gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
1600     gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
1601
1602     xc=254.2*TMath::Cos(angle);
1603     yc=254.2*TMath::Sin(angle);
1604
1605     gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
1606     gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");
1607
1608   }
1609
1610   //----------------------------------------------------------
1611   // Tpc High Voltage rod - MAKROLON + Copper cable
1612   //----------------------------------------------------------
1613
1614   // rod with cable (Left)
1615
1616   dm[0]=0.;
1617   dm[1]=2.25;
1618   dm[2]=126.65;
1619
1620   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1621
1622   // HV cable
1623
1624   dm[0]=0.;
1625   dm[1]=0.3;
1626   dm[2]=126.65;
1627
1628   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1629
1630   // empty space
1631
1632   dm[0]=0.3;
1633   dm[1]=1.;
1634   dm[2]=126.65;
1635
1636   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1637
1638   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1639   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1640
1641   // rod without cable
1642
1643   dm[0]=1.8;
1644   dm[1]=2.25;
1645   dm[2]=126.65;
1646
1647   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1648
1649
1650
1651   gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
1652   gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
1653
1654   gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
1655   gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");
1656
1657
1658
1659   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1660
1661
1662   // services wheel cover -> wheel
1663
1664
1665   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1666   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1667
1668
1669   // put the wheel into the TPC
1670
1671   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1672   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1673
1674   //
1675
1676   gMC->Gsord("TPMW",6);
1677   gMC->Gsord("TSSW",6);
1678   gMC->Gsord("TSWC",6);
1679
1680   // put the TPC into ALIC (main mother volume)
1681
1682   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1683
1684 } // end of function
1685
1686
1687 //_____________________________________________________________________________
1688 void AliTPCv0::CreateMaterials()
1689 {
1690   //
1691   // Define materials for the TPC
1692   //
1693   AliTPC::CreateMaterials();
1694 }
1695
1696 //_____________________________________________________________________________
1697 void AliTPCv0::DrawDetector()
1698 {
1699   //
1700   // Draw a shaded view of the Time Projection Chamber version 0
1701   //
1702
1703   // Set everything unseen
1704   gMC->Gsatt("*", "seen", -1);
1705   //
1706   // Set ALIC mother transparent
1707   gMC->Gsatt("ALIC","SEEN",0);
1708   //
1709   // Set the volumes visible
1710   gMC->Gsatt("TPC ","SEEN",0);
1711   gMC->Gsatt("TOIN","SEEN",1);
1712   gMC->Gsatt("TOIN","COLO",7);
1713   gMC->Gsatt("TPCR","SEEN",0);
1714   gMC->Gsatt("TOCV","SEEN",1);
1715   gMC->Gsatt("TOCV","COLO",4);
1716   gMC->Gsatt("TSA1","SEEN",0);
1717   gMC->Gsatt("TSA2","SEEN",0);
1718   gMC->Gsatt("TSA3","SEEN",0);
1719   gMC->Gsatt("TSA4","SEEN",0);
1720   gMC->Gsatt("TOFC","SEEN",1);
1721   gMC->Gsatt("TOFC","COLO",4);
1722   gMC->Gsatt("TSA5","SEEN",0);
1723   gMC->Gsatt("TSA6","SEEN",0);
1724   gMC->Gsatt("TSA7","SEEN",0);
1725   gMC->Gsatt("TIIN","COLO",7);
1726   gMC->Gsatt("TIIN","SEEN",1);
1727   gMC->Gsatt("TICL","SEEN",0);
1728   gMC->Gsatt("TSA9","SEEN",0);
1729   gMC->Gsatt("TS10","SEEN",0);
1730   gMC->Gsatt("TS11","SEEN",0);
1731   gMC->Gsatt("TS12","SEEN",0);
1732   gMC->Gsatt("TICR","SEEN",0);
1733   gMC->Gsatt("TS13","SEEN",0);
1734   gMC->Gsatt("TS14","SEEN",0);
1735   gMC->Gsatt("TS15","SEEN",0);
1736   gMC->Gsatt("TS16","SEEN",0);
1737   gMC->Gsatt("TIFC","SEEN",1);
1738   gMC->Gsatt("TIFC","COLO",4);
1739   gMC->Gsatt("TS17","SEEN",0);
1740   gMC->Gsatt("TS18","SEEN",0);
1741   gMC->Gsatt("TS19","SEEN",0);
1742   gMC->Gsatt("TS21","SEEN",0);
1743   gMC->Gsatt("TS22","SEEN",0);
1744   gMC->Gsatt("TS23","SEEN",0);
1745   gMC->Gsatt("TS24","SEEN",0);
1746   gMC->Gsatt("TDGN","SEEN",0);
1747   gMC->Gsatt("TIRC","SEEN",0);
1748   gMC->Gsatt("TIC1","SEEN",1);
1749   gMC->Gsatt("TIPP","SEEN",0);
1750   gMC->Gsatt("TIC3","SEEN",0);
1751   gMC->Gsatt("TRCE","SEEN",0);
1752   gMC->Gsatt("TPSC","SEEN",0);
1753   gMC->Gsatt("TPCC","SEEN",0);
1754   gMC->Gsatt("TORC","SEEN",0);
1755   gMC->Gsatt("TOPP","SEEN",0);
1756   gMC->Gsatt("TOC3","SEEN",0);
1757   gMC->Gsatt("TOC1","SEEN",1);
1758   gMC->Gsatt("TSSW","SEEN",1);
1759   gMC->Gsatt("TSWC","SEEN",1);
1760   gMC->Gsatt("TSCE","SEEN",1);
1761   gMC->Gsatt("TSSW","COLO",3);
1762   gMC->Gsatt("TSWC","COLO",3);
1763   gMC->Gsatt("TSCE","COLO",6);
1764   gMC->Gsatt("TWES","SEEN",0);
1765   gMC->Gsatt("TSWB","SEEN",0);
1766   gMC->Gsatt("TPEL","SEEN",0);
1767   gMC->Gsatt("TPMW","SEEN",1);
1768   gMC->Gsatt("TPEW","SEEN",1);
1769   gMC->Gsatt("TESR","SEEN",1);
1770   gMC->Gsatt("TPMW","COLO",12);
1771   gMC->Gsatt("TPEW","COLO",12);
1772   gMC->Gsatt("TWES","COLO",5);
1773   gMC->Gsatt("TIC1","COLO",5);
1774   gMC->Gsatt("TOC1","COLO",5);
1775   gMC->Gsatt("TESB","SEEN",0);
1776   gMC->Gsatt("THVM","SEEN",1);
1777   gMC->Gsatt("THVM","COLO",11);
1778   gMC->Gsatt("TPSR","SEEN",0);
1779   gMC->Gsatt("THVL","SEEN",0);
1780   gMC->Gsatt("THVC","SEEN",0);
1781   gMC->Gsatt("THVE","SEEN",0);
1782   gMC->Gsatt("THVR","SEEN",0);
1783   //
1784   gMC->Gdopt("hide", "on");
1785   gMC->Gdopt("shad", "on");
1786   gMC->Gsatt("*", "fill", 7);
1787   gMC->SetClipBox(".");
1788   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1789   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1790   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1791   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1792   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1793   gMC->DefaultRange();
1794   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1795   gMC->Gdhead(1111, "Time Projection Chamber");
1796   gMC->Gdman(18, 4, "MAN");
1797   gMC->Gdopt("hide","off");
1798 }
1799
1800 //_____________________________________________________________________________
1801 void AliTPCv0::Init()
1802 {
1803   //
1804   // Initialise Time Projection Chamber version 0
1805   //
1806   printf("TPC version 0 initialized\n");
1807 }
1808
1809 //_____________________________________________________________________________
1810 void AliTPCv0::StepManager()
1811 {
1812   //
1813   // Procedure called at each step in the TPC
1814   //
1815 }