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 1.23  2001/04/24 11:17:33  kowal2
  19 New TPC geometry.
  20
  21 Revision 1.22  2001/03/13 13:07:33  kowal2
  22 Corrected bug in the TPC mother volume geometry.
  23 Thanks to A. Morsch
  24
  25 Revision 1.21  2000/11/14 10:48:57  kowal2
  26 Correct material used for TSA4. Thanks to J. Barbosa.
  27
  28 Revision 1.20  2000/11/06 17:24:10  kowal2
  29 Corrected bug in the outer containment vessel and
  30 the outer field cage geometry.
  31 Thanks to J. Barbosa.
  32
  33 Revision 1.19  2000/11/02 16:55:24  kowal2
  34 Corrected bug in the inner containment vessel geometry.
  35 Thanks to J. Belikov
  36
  37 Revision 1.18  2000/11/02 07:24:11  kowal2
  38 Correction in the TPC geometry.
  39 Changes due to the new hit structure.
  40
  41 Revision 1.17  2000/07/10 20:57:39  hristov
  42 Update of TPC code and macros by M.Kowalski
  43
  44 Revision 1.16  2000/06/30 12:07:50  kowal2
  45 Updated from the TPC-PreRelease branch
  46
  47 Revision 1.15.2.4  2000/06/26 07:39:42  kowal2
  48 Changes to obey the coding rules
  49
  50 Revision 1.15.2.3  2000/06/25 08:38:41  kowal2
  51 Splitted from AliTPCtracking
  52
  53 Revision 1.15.2.2  2000/06/16 12:58:13  kowal2
  54 Changed parameter settings
  55
  56 Revision 1.15.2.1  2000/06/09 07:15:07  kowal2
  57
  58 Defaults loaded automatically (hard-wired)
  59 Optional parameters can be set via macro called in the constructor
  60
  61 Revision 1.15  2000/05/15 10:00:30  kowal2
  62 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  63
  64 Revision 1.14  2000/04/17 09:37:33  kowal2
  65 removed obsolete AliTPCDigitsDisplay.C
  66
  67 Revision 1.13.8.2  2000/04/10 08:33:44  kowal2
  68
  69 Updated readout chambers
  70
  71 Revision 1.13.8.1  2000/04/10 07:56:53  kowal2
  72 Not used anymore - removed
  73
  74 Revision 1.13  1999/11/04 17:28:06  fca
  75 Correct barrel part of HV Degrader
  76
  77 Revision 1.12  1999/10/08 06:27:23  fca
  78 Corrected bug in the HV degrader geometry, thanks to G.Tabary
  79
  80 Revision 1.11  1999/10/04 13:39:54  fca
  81 Correct array index problem
  82
  83 Revision 1.10  1999/09/29 09:24:34  fca
  84 Introduction of the Copyright and cvs Log
  85
  86 */
  87 //
  88
  89 ///////////////////////////////////////////////////////////////////////////////
  90 //                                                                           //
  91 //  Time Projection Chamber version 0 -- "coarse" TPC                        //
  92 //                                                                           //
  93 //Begin_Html
  94 /*
  95 <img src="picts/AliTPCv0Class.gif">
  96 */
  97 //End_Html
  98 //                                                                           //
  99 //                                                                           //
 100 ///////////////////////////////////////////////////////////////////////////////
 101
 102 #include <TMath.h>
 103 #include <TGeometry.h>
 104 #include <TNode.h>
 105 #include <TTUBE.h>
 106 #include "AliTPCv0.h"
 107 #include "AliRun.h"
 108 #include <iostream.h>
 109 #include <fstream.h>
 110 #include "AliMC.h"
 111 #include "AliConst.h"
 112
 113 #include "AliTPCParamSR.h"
 114 #include "AliTPCDigitsArray.h"
 115
 116 ClassImp(AliTPCv0)
 117
 118 //_____________________________________________________________________________
 119 AliTPCv0::AliTPCv0(const char *name, const char *title)
 120          :AliTPC(name, title)
 121 {
 122   //
 123   // Standard creator for TPC version 0
 124   //
 125
 126   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 127
 128   if (fTPCParam)
 129      fTPCParam->Write(fTPCParam->GetTitle());
 130 }
 131
 132 //_____________________________________________________________________________
 133 void AliTPCv0::CreateGeometry()
 134 {
 135
 136   //
 137   // Creation of the TPC version 0, i.e. no sensitive volumes,
 138   // only the material distribution
 139   //
 140   //Begin_Html
 141   /*
 142     <img src="picts/AliTPC.gif">
 143   */
 144   //End_Html
 145   //Begin_Html
 146   /*
 147     <img src="picts/AliTPCv0Tree.gif">
 148   */
 149   //End_Html
 150
 151   //---------------------------------------------------------------
 152   //  TPC geometry
 153   //
 154   //  Origin: Marek Kowalski, INP Cracow
 155   //  Marek.Kowalski@ifj.edu.pl
 156   //---------------------------------------------------------------
 157   Float_t dm[50];
 158
 159   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 160
 161   Int_t idrotm[120]; // rotation matrices
 162
 163   Int_t nRotMat = 0; // actual number of rotation matrices
 164
 165
 166   //
 167   //  Mother volume TPC (Air) - all volumes will be positioned in it
 168   //
 169
 170   dm[0]=0.;
 171   dm[1]=360.;
 172   dm[2]=8.;
 173
 174   //
 175
 176   dm[3]=-283.7;
 177   dm[4]=65.6;
 178   dm[5]=278.;
 179
 180   //
 181
 182   dm[6]=-253.6;
 183   dm[7]=65.6;
 184   dm[8]=278.;
 185
 186   //
 187
 188   dm[9]=-73.3;
 189   dm[10]=60.9;
 190   dm[11]=278.;
 191
 192   //
 193
 194   dm[12]=-73.3;
 195   dm[13]=56.9;
 196   dm[14]=278.;
 197
 198   //
 199
 200   dm[15]=73.3;
 201   dm[16]=56.9;
 202   dm[17]=278.;
 203
 204   //
 205
 206   dm[18]=73.3;
 207   dm[19]=60.9;
 208   dm[20]=278.;
 209
 210   //
 211
 212   dm[21]=253.6;
 213   dm[22]=65.6;
 214   dm[23]=278.;
 215
 216   //
 217
 218   dm[24]=283.7;
 219   dm[25]=65.6;
 220   dm[26]=278.;
 221
 222   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27);
 223
 224   // outer part
 225
 226   //-------------------------------------------------------------------
 227   //   Tpc Outer INsulator (CO2) - contains cont. vessel and field cage
 228   //-------------------------------------------------------------------
 229
 230   dm[0]= 0.;
 231   dm[1]= 360.;
 232   dm[2]= 6.;
 233
 234   //
 235
 236   dm[3]=-253.6;
 237   dm[4]=258.;
 238   dm[5]=275.5;
 239
 240   //
 241
 242   dm[6]=-250.6;
 243   dm[7]=258.;
 244   dm[8]=275.5;
 245
 246   //
 247
 248   dm[9]=-250.6;
 249   dm[10]=258.;
 250   dm[11]=278.;
 251
 252   //
 253
 254   dm[12]=253.6;
 255   dm[13]=258.;
 256   dm[14]=278.;
 257
 258   //
 259
 260   dm[15]=253.6;
 261   dm[16]=264.8;
 262   dm[17]=278.;
 263
 264   //
 265
 266   dm[18]=256.6;
 267   dm[19]=264.8;
 268   dm[20]=278.;
 269
 270   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 271
 272   //----------------------------------------------------------------
 273   // Tpc Outer Contaiment Vessel
 274   //  mother volume - Al, daughters - composite (sandwich)
 275   //----------------------------------------------------------------
 276
 277   dm[0]=0.;
 278   dm[1]=360.;
 279   dm[2]=6.;
 280
 281   //
 282
 283   dm[3]=-250.6;
 284   dm[4]=270.4;
 285   dm[5]=278.;
 286
 287   //
 288
 289   dm[6]=-247.6;
 290   dm[7]=270.4;
 291   dm[8]=278.;
 292
 293   //
 294
 295   dm[9]=-247.6;
 296   dm[10]=274.81;
 297   dm[11]=278.;
 298
 299   //
 300
 301   dm[12]=253.6;
 302   dm[13]=274.81;
 303   dm[14]=278.;
 304
 305   //
 306
 307   dm[15]=253.6;
 308   dm[16]=264.8;
 309   dm[17]=278.;
 310
 311   //
 312
 313   dm[18]=256.6;
 314   dm[19]=264.8;
 315   dm[20]=278.;
 316
 317   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
 318
 319   // Daughter volumes - sandwich
 320
 321   // Tpc SAndwich 1 - Al
 322
 323   dm[0]=274.81;
 324   dm[1]=278.;
 325   dm[2]=252.1;
 326
 327   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 328
 329   // Tpc SAndwich 2 - epoxy glue (I use Lexan)
 330
 331   dm[0] += 5.e-3;
 332   dm[1] -= 5.e-3;
 333
 334   gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3);
 335
 336   // Tpc SAndwich 3 - Tedlar
 337
 338   dm[0] += 0.01;
 339   dm[1] -= 0.01;
 340
 341   gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3);
 342
 343
 344   // Tpc SAndwich 4 - fiber glass (G10)
 345
 346   dm[0] += 5.e-3;
 347   dm[1] -= 5.e-3;
 348
 349   gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3);
 350
 351   // Tpc SAndwich 5 - NOMEX honeycomb
 352
 353   dm[0] += 0.075;
 354   dm[1] -= 0.075;
 355
 356   gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3);
 357
 358   // 5->4->3->2->1->TCOV
 359
 360
 361   gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY");
 362   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 363   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 364   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 365
 366   gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY");
 367
 368   // TCOV-> TOIN
 369
 370   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 371
 372   //-------------------------------------------------------
 373   //  Tpc Outer Field Cage
 374   //  mother volume - Al, daughters - composite (sandwich)
 375   //-------------------------------------------------------
 376
 377   dm[0]=0.;
 378   dm[1]=360.;
 379   dm[2]=6.;
 380
 381   //
 382
 383   dm[3]=-253.6;
 384   dm[4]=258.;
 385   dm[5]=275.5;
 386
 387   //
 388
 389   dm[6]=-250.6;
 390   dm[7]=258.;
 391   dm[8]=275.5;
 392
 393   //
 394
 395   dm[9]=-250.6;
 396   dm[10]=258.;
 397   dm[11]=260.05;
 398
 399   //
 400
 401   dm[12]=250.6;
 402   dm[13]=258.;
 403   dm[14]=260.05;
 404
 405   //
 406
 407   dm[15]=250.6;
 408   dm[16]=258.;
 409   dm[17]=275.5;
 410
 411   //
 412
 413   dm[18]=253.6;
 414   dm[19]=258.;
 415   dm[20]=275.5;
 416
 417   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 418
 419   // Daughter volumes
 420
 421   // Tpc SAndwich 6 - Tedlar
 422
 423   dm[0]= 258.;
 424   dm[1]= 260.05;
 425   dm[2]= 252.1;
 426
 427   gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
 428
 429   // Tpc SAndwich 7 - fiber glass
 430
 431   dm[0] += 5.e-3;
 432   dm[1] -= 5.e-3;
 433
 434   gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3);
 435
 436
 437   // Tpc SAndwich 8 - NOMEX
 438
 439   dm[0] += 0.02;
 440   dm[1] -= 0.02;
 441
 442   gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
 443
 444   // 8->7->6->TOFC
 445
 446   gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
 447   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 448   gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY");
 449
 450   // TOFC->TOIN
 451
 452   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 453
 454   // TOIN->TPC
 455
 456   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 457
 458   // inner part
 459
 460   //--------------------------------------------------------------------
 461   // Tpc Inner INsulator (CO2) - inner f.c. will be placed there
 462   // Inner containment vessel will be placed directly in the TPC
 463   //--------------------------------------------------------------------
 464
 465   dm[0]=0.;
 466   dm[1]=360.;
 467   dm[2]=4.;
 468
 469   //
 470
 471   dm[3]=-253.6;
 472   dm[4]=65.9;
 473   dm[5]=79.2;
 474
 475   //
 476
 477   dm[6]=-73.3;
 478   dm[7]=61.2;
 479   dm[8]=79.2;
 480
 481   //
 482
 483   dm[9]=73.3;
 484   dm[10]=61.2;
 485   dm[11]=79.2;
 486
 487   //
 488
 489   dm[12]=253.6;
 490   dm[13]=65.9;
 491   dm[14]=79.2;
 492
 493   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15);
 494
 495   // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2
 496
 497   dm[0]=79.16;
 498   dm[1]=79.2;
 499   dm[2]=88.;
 500
 501   gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3);
 502
 503   gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY");
 504
 505   //-----------------------------------------------------
 506   // Tpc Inner Field Cage
 507   // mother volume - Al, daughters - composite (sandwich)
 508   //------------------------------------------------------
 509
 510   dm[0]=0.;
 511   dm[1]=360.;
 512   dm[2]=10.;
 513
 514   //
 515
 516   dm[3]=-253.6;
 517   dm[4]=70.3;
 518   dm[5]=79.2;
 519
 520   //
 521
 522   dm[6]=-250.6;
 523   dm[7]=70.3;
 524   dm[8]=79.2;
 525
 526   //
 527
 528   dm[9]=-250.6;
 529   dm[10]=77.05;
 530   dm[11]=79.2;
 531
 532   //
 533
 534   dm[12]=-88.;
 535   dm[13]=77.05;
 536   dm[14]=79.2;
 537
 538   //
 539
 540   dm[15]=-88.;
 541   dm[16]=77.09;
 542   dm[17]=79.16;
 543
 544   //
 545
 546   dm[18]=88.;
 547   dm[19]=77.09;
 548   dm[20]=79.16;
 549
 550   //
 551
 552   dm[21]=88.;
 553   dm[22]=77.05;
 554   dm[23]=79.2;
 555
 556   //
 557
 558   dm[24]=250.6;
 559   dm[25]=77.05;
 560   dm[26]=79.2;
 561
 562   //
 563
 564   dm[27]=250.6;
 565   dm[28]=70.3;
 566   dm[29]=79.2;
 567
 568   //
 569
 570   dm[30]=253.6;
 571   dm[31]=70.3;
 572   dm[32]=79.2;
 573
 574   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33);
 575
 576   // daughter volumes - central part
 577
 578   // Tpc Sandwich 9 -Tedlar
 579
 580   dm[0]=77.09;
 581   dm[1]=79.16;
 582   dm[2]=88.;
 583
 584   gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3);
 585
 586   // Tpc Sandwich 10 - fiber glass (G10)
 587
 588   dm[0] += 5.e-3;
 589   dm[1] -= 5.e-3;
 590
 591   gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3);
 592
 593   // Tpc Sandwich 11 - NOMEX
 594
 595   dm[0] += 0.03;
 596   dm[1] -= 0.03;
 597
 598   gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3);
 599
 600   // 11->10->9->TIFC
 601
 602   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 603   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 604
 605   gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY");
 606
 607   // daughter volumes - outer parts (reinforced)
 608
 609   // Tpc Sandwich 12 -Tedlar
 610
 611   dm[0]=77.05;
 612   dm[1]=79.2;
 613   dm[2]=82.05;
 614
 615   gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3);
 616
 617   // Tpc Sandwich 13 - fiber glass (G10)
 618
 619   dm[0] += 5.e-3;
 620   dm[1] -= 5.e-3;
 621
 622   gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3);
 623
 624   // Tpc Sandwich 14 - NOMEX
 625
 626   dm[0] += 0.07;
 627   dm[1] -= 0.07;
 628
 629   gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3);
 630
 631   // 14->13->12->TIFC
 632
 633   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 634   gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY");
 635
 636   gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY");
 637   gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY");
 638
 639   // place this inside the inner insulator
 640
 641   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 642
 643   // and now in the TPC...
 644
 645   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 646
 647   //---------------------------------------------------------
 648   // Tpc Inner Containment vessel - Cones
 649   //---------------------------------------------------------
 650
 651   dm[0]=0.;
 652   dm[1]=360.;
 653   dm[2]=8.;
 654
 655   //
 656
 657   dm[3]=71.8;
 658   dm[4]=56.9;
 659   dm[5]=59.4;
 660
 661   //
 662
 663   dm[6]=73.;
 664   dm[7]=56.9;
 665   dm[8]=59.4;
 666
 667   //
 668
 669   dm[9]=73.;
 670   dm[10]=56.9;
 671   dm[11]=61.2;
 672
 673   //
 674
 675   dm[12]=73.3;
 676   dm[13]=56.9;
 677   dm[14]=61.2;
 678
 679   //
 680
 681   dm[15]=73.3;
 682   dm[16]=60.9;
 683   dm[17]=61.2;
 684
 685   //
 686
 687   dm[18]=253.6;
 688   dm[19]=65.6;
 689   dm[20]=65.9;
 690
 691   //
 692
 693   dm[21]=253.6;
 694   dm[22]=65.6;
 695   dm[23]=74.6;
 696
 697   //
 698
 699   dm[24]=256.6;
 700   dm[25]=65.6;
 701   dm[26]=74.6;
 702
 703   gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27);
 704
 705   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
 706
 707   // reflection matrix
 708
 709   theta1 = 90.;
 710   phi1   = 0.;
 711   theta2 = 90.;
 712   phi2   = 270.;
 713   theta3 = 180.;
 714   phi3   = 0.;
 715
 716   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
 717
 718   gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY");
 719   gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 720
 721
 722   //---------------------------------------------------------
 723   // Tpc Inner Containment vessel - Middle part -Al
 724   //---------------------------------------------------------
 725
 726   dm[0]=0.;
 727   dm[1]=360.;
 728   dm[2]=6.;
 729
 730   //
 731
 732   dm[3]=-71.6;
 733   dm[4]=60.2;
 734   dm[5]=61.2;
 735
 736   //
 737
 738   dm[6]=-69.1;
 739   dm[7]=60.2;
 740   dm[8]=61.2;
 741
 742   //
 743
 744   dm[9]=-69.1;
 745   dm[10]=60.64;
 746   dm[11]=61.2;
 747
 748   //
 749
 750   dm[12]=69.1;
 751   dm[13]=60.64;
 752   dm[14]=61.2;
 753
 754   //
 755
 756   dm[15]=69.1;
 757   dm[16]=60.2;
 758   dm[17]=61.2;
 759
 760   //
 761
 762   dm[18]=71.6;
 763   dm[19]=60.2;
 764   dm[20]=61.2;
 765
 766   gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21);
 767
 768   // Tpc Sandwich 15 - Al
 769
 770   dm[0]=60.64;
 771   dm[1]=61.2;
 772   dm[2]=70.1;
 773
 774   gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3);
 775
 776   // Tpc Sandwich 16 -  epoxy glue
 777
 778   dm[0] += 5.e-3;
 779   dm[1] -= 5.e-3;
 780
 781   gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3);
 782
 783   // Tpc Sandwich 17 - Tedlar
 784
 785   dm[0] += 0.01;
 786   dm[1] -= 0.01;
 787
 788   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
 789
 790   // Tpc Sandwich 18 - fiber glass
 791
 792   dm[0] += 5.e-3;
 793   dm[1] -= 5.e-3;
 794
 795   gMC->Gsvolu("TS18","TUBE",idtmed[12],dm,3);
 796
 797   // Tpc Sandwich 19 - Nomex
 798
 799   dm[0] += 0.01;
 800   dm[1] -= 0.01;
 801
 802   gMC->Gsvolu("TS19","TUBE",idtmed[12],dm,3);
 803
 804   // 19->18->17->16->15-> TICM
 805
 806   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 807   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 808   gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY");
 809   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 810
 811   gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY");
 812
 813
 814   // TPc inner cont. vessel Joints
 815
 816   dm[0]=60.2;
 817   dm[1]=61.2;
 818   dm[2]=0.5;
 819
 820   gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3);
 821
 822   gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY");
 823   gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY");
 824
 825   //
 826
 827   dm[0]=0.;
 828   dm[1]=360.;
 829   dm[2]=4.;
 830
 831   //
 832
 833   dm[3]=70.8;
 834   dm[4]=58.4;
 835   dm[5]=60.1;
 836
 837   //
 838
 839   dm[6]=71.2;
 840   dm[7]=58.4;
 841   dm[8]=60.1;
 842
 843   //
 844
 845   dm[9]=71.2;
 846   dm[10]=58.4;
 847   dm[11]=59.4;
 848
 849   //
 850
 851   dm[12]=71.6;
 852   dm[13]=58.4;
 853   dm[14]=59.4;
 854
 855   gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15);
 856
 857   gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY");
 858   gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 859
 860
 861
 862   // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being)
 863
 864   dm[0]=58.4;
 865   dm[1]=61.2;
 866   dm[2]=0.1;
 867
 868   gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3);
 869
 870   gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY");
 871   gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY");
 872
 873   // TICM -> TPC
 874
 875   gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY");
 876
 877   //
 878
 879   nRotMat++; // prepare for the next rotation matrix
 880
 881   //---------------------------------------------------------
 882   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
 883   //  and its daughters (HV membrane, rods, readout chambers)
 884   //---------------------------------------------------------
 885
 886   dm[0]= 79.2;
 887   dm[1]= 258.0;
 888   dm[2]= 253.6;
 889
 890   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
 891
 892   // sector opening angles
 893
 894   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
 895
 896   // sector angle shift
 897
 898   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
 899
 900   // number of sectors
 901
 902   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
 903   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
 904
 905   // All above parameters are identical for inner and outer
 906   // sectors. The distinction is kept for the historical reasons
 907   // and eventually will disappear.
 908
 909   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
 910   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
 911   Float_t space;
 912
 913   //-------------------------------------------------------------------------
 914   //   Tpc Inner Readout Chambers
 915   //-------------------------------------------------------------------------
 916
 917   dm[0]= 14.483;
 918   dm[1]= 23.3345;
 919   dm[2]= 1.6; // thickness
 920   dm[3]= 25.1;
 921
 922   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
 923
 924   // this volume will be positioned in the empty space
 925   // of the end-cap to avoid overlaps
 926
 927   dm[0]= 13.7305;
 928   dm[1]= 21.1895;
 929   dm[2]= 2.25;
 930   dm[3]= 21.15;
 931
 932   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
 933
 934
 935   //------------------------------------------------
 936   // Tpc Inner readout chamber Pad Plane
 937   //------------------------------------------------
 938
 939   dm[0]= 14.483;
 940   dm[1]= 23.3345;
 941   dm[2]= 0.5;
 942   dm[3]= 25.1;
 943
 944   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
 945
 946   //
 947
 948   dm[0] -= 1.218511934;
 949   dm[1] -= 1.218511934;
 950   dm[2] = 0.35;
 951
 952   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
 953
 954   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
 955
 956   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
 957
 958
 959   //----------------------------------------------
 960   // Tpc Readout Chambers Empty spaces - for both
 961   // inner and outer sectors
 962   //----------------------------------------------
 963
 964   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
 965
 966   // Inner sector - 4 spaces
 967
 968
 969   dm[3] = 4.7625;
 970   dm[0] = 12.472;
 971
 972   Float_t rr = 90.52;
 973   Float_t zz;
 974
 975   zz= -12.7875;
 976
 977   space = rr*tanAlpha-dm[0];
 978
 979   for(Int_t nsLow=0;nsLow<4;nsLow++){
 980
 981     rr += 9.525;
 982     dm[1]= rr*tanAlpha - space;
 983
 984     dm[2]=0.8;
 985
 986     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
 987
 988     //
 989
 990     dm[2] = 1.2;
 991
 992     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
 993
 994     rr += 0.4;
 995     dm[0] = rr*tanAlpha - space;
 996     zz += (0.4+9.525);
 997
 998   }
 999
1000   dm[0]= 12.472;
1001   // dm[1] - this is the dm[1] from the previous TRCE
1002   dm[2]= 1.05;
1003   dm[3]= 19.65;
1004
1005   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1006
1007   //
1008   // TPc Space for Connectors
1009   //
1010
1011   dm[0]= .3;
1012   dm[1]= .3;
1013   dm[2]= 4.5;
1014
1015   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1016
1017   // TPC Connectors
1018
1019   dm[0]= .25;
1020   dm[1]= .15;
1021   dm[2]= 3.75;
1022
1023   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1024
1025   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1026
1027   zz = -12.7875;
1028
1029
1030   Float_t alpha;
1031   Float_t astep;
1032
1033   // inner part of the inner sector - 2 x 20 holes
1034
1035   astep = 20.00096874/19.;
1036
1037   alpha = 10.00048437-astep;
1038
1039   Float_t x1,x2;
1040
1041     x1 = 13.31175725;
1042     x1 -= 0.996357832;
1043
1044     x2 = 15.06180253;
1045     x2 -= 1.163028812;
1046
1047   Int_t ncon;
1048
1049   for(ncon=0;ncon<20;ncon++){
1050
1051     phi1 = 0.;
1052     theta1 = 90.+alpha;
1053     phi2=90.;
1054     theta2 = 90.;
1055     phi3 = (alpha>0) ? 0. : 180.;
1056     theta3 = TMath::Abs(alpha);
1057
1058     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1059
1060
1061
1062     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1063     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1064
1065
1066     x1 -= 1.296357833;
1067     x2 -= 1.463028812;
1068
1069     alpha -= astep;
1070     nRotMat++;
1071
1072   }
1073
1074   // outer part of the inner sector - 2 x 25 holes
1075
1076    astep = 20.00096874/24.;
1077    alpha = 10.00048437-astep;
1078
1079    x1 = 16.81184781;
1080    x1 -= 1.016295986;
1081
1082    x2 = 18.5618931;
1083    x2 -= 1.150914854;
1084
1085   for(ncon=0;ncon<25;ncon++){
1086
1087     phi1 = 0.;
1088     theta1 = 90.+alpha;
1089     phi2=90.;
1090     theta2 = 90.;
1091     phi3 = (alpha>0) ? 0. : 180.;
1092     theta3 = TMath::Abs(alpha);
1093
1094     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1095
1096
1097
1098     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1099     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1100
1101
1102     x1 -= 1.316295986;
1103     x2 -= 1.450914854;
1104
1105     alpha -= astep;
1106     nRotMat++;
1107
1108   }
1109
1110   //--------------------------------------------------------------------------
1111   //  TPC Outer Readout Chambers
1112   //  this is NOT a final design
1113   //--------------------------------------------------------------------------
1114
1115   dm[0]= 23.3875;
1116   dm[1]= 43.524;
1117   dm[2]= 1.5; //thickness
1118   dm[3]= 57.1;
1119
1120   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1121
1122   //------------------------------------------------
1123   // Tpc Outer readout chamber Pad Plane
1124   //------------------------------------------------
1125
1126   dm[2]= 0.5;
1127
1128   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1129
1130   dm[0] -= 1.218511934;
1131   dm[1] -= 1.218511934;
1132   dm[2] = 0.35;
1133
1134   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1135
1136   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1137
1138   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1139
1140   // empty space
1141
1142   dm[0]= 21.035;
1143   dm[1]= 38.7205;
1144   dm[2]= 0.7;
1145   dm[3]= 50.15;
1146
1147   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1148
1149   dm[0]= 22.2935;
1150   dm[1]= 40.5085;
1151   dm[2]= 2.25;
1152   dm[3]= 51.65;
1153
1154   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1155
1156   dm[0]= 21.35;
1157   dm[1]= 38.7205;
1158   dm[2]= 2.25;
1159   dm[3]= 50.15;
1160
1161   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1162
1163   //-----------------------------------------------
1164   // Tpc Services Support Wheel
1165   //-----------------------------------------------
1166
1167   dm[0]=0.;
1168   dm[1]=360.;
1169   dm[2]=18.;
1170   dm[3]=2.;
1171
1172   dm[4]= -5.;
1173   dm[5]= 77.017;
1174   dm[6]= 255.267;
1175
1176   dm[7]= 5.;
1177   dm[8]= dm[5];
1178   dm[9]= dm[6];
1179
1180   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1181
1182   // Tpc Services Wheel Cover
1183
1184   dm[4]= -0.5;
1185   dm[7]= 0.5;
1186
1187   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1188
1189   // Tpc Service wheel Cover Empty space
1190
1191   dm[0]= 10.99;
1192   dm[1]= 39.599;
1193   dm[2]= .5;
1194   dm[3]= 81.125;
1195
1196   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1197
1198   // Tpc services Wheel Empty Spaces
1199
1200   dm[0]= 13.18017507;
1201   dm[1]= 44.61045938;
1202   dm[2]= 4.;
1203   dm[3]= 89.125;
1204
1205   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1206
1207   // Tpc Services Wheel Bars
1208
1209   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1210
1211   // bars-> TWES
1212
1213   dm[2]= 4.;
1214   dm[3]= .4;
1215
1216   dm[0]= 13.8149522;
1217   dm[1]= 13.95601379;
1218
1219   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1220
1221   dm[0]= 43.83462067;
1222   dm[1]= 43.97568225;
1223
1224   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1225
1226   // TPc ELectronics - right now 30% X0 Si
1227
1228   dm[0]= 14.03813696;
1229   dm[1]= 43.3524075;
1230   dm[2]= 1.404;
1231   dm[3]= 83.125;
1232
1233   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1234   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1235
1236   //--------------------------------------------------------------------------
1237   //  End caps
1238   //--------------------------------------------------------------------------
1239
1240   // TPc Main Wheel - Al
1241
1242   dm[0]= 74.9;
1243   dm[1]= 264.4;
1244   dm[2]= 3.0;
1245
1246   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1247
1248   //--------------------------------------------------------------------------
1249   //  Tpc Empty Space for the Readout chambers
1250   //--------------------------------------------------------------------------
1251
1252   Float_t rLow= 86.2;
1253   Float_t rUp= 243.5;
1254   Float_t dR = 0.5*(rUp-rLow);
1255
1256   space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide
1257
1258   dm[0]= rLow*tanAlpha-space;
1259   dm[1]= rUp*tanAlpha-space;
1260   dm[2] = 3.0;
1261   dm[3]= dR;
1262
1263   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1264
1265   // TIC1->TESR
1266
1267   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1268
1269   // TOC1->TESR
1270
1271   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1272
1273   // Tpc Empty Space Bars - Al (daughters of TESR)
1274
1275   Float_t zBar;
1276
1277   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1278
1279   // lower bar
1280
1281   dm[0]= rLow*tanAlpha-space;
1282   dm[1]= 88.7*tanAlpha-space;
1283   dm[2]= 2.25;
1284   dm[3]= 1.275;
1285
1286   zBar = -dR+dm[3];
1287
1288   gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1289
1290   // middle bar
1291
1292   dm[0]= 131.65*tanAlpha-space;
1293   dm[1]= 136.5*tanAlpha-space;
1294   dm[3]= 2.425;
1295
1296   zBar = -dR +131.65+dm[3]-rLow;
1297
1298   gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1299
1300   // upper bar
1301
1302   dm[0]= 240.4*tanAlpha-space;
1303   dm[1]= rUp*tanAlpha-space;
1304   dm[3]= 1.55;
1305
1306   zBar = dR-dm[3];
1307
1308   gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1309
1310   //  positioning of the empty spaces into the main wheel
1311
1312   Float_t rCenter,xc,yc;
1313   Float_t rInner,rOuter; // center of the inner and outer chamber
1314
1315   rCenter = rLow+dR;
1316
1317   rInner = 108.07;
1318   rOuter = 190.68;
1319
1320
1321   for(Int_t ns=0; ns<nInnerSector;ns++){
1322
1323     phi1 = ns * innerOpenAngle + innerAngleShift;
1324     phi1 *= kRaddeg; // in degrees
1325
1326     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1327
1328     if (phi1 > 360.) phi1 -= 360.;
1329
1330     theta1 = 90.;
1331     phi2   = 90.;
1332     theta2 = 180.;
1333     phi3   = ns * innerOpenAngle + innerAngleShift;
1334     phi3 *= kRaddeg; // in degrees
1335
1336     phi3 = (Float_t)TMath::Nint(phi3);
1337
1338     if(phi3 > 360.) phi3 -= 360.;
1339
1340     theta3 = 90.;
1341
1342     // "holes"->End plate
1343
1344     xc = rCenter*TMath::Cos(phi3*kDegrad);
1345     yc = rCenter*TMath::Sin(phi3*kDegrad);
1346
1347     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1348
1349     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1350
1351     // TSCE->TSWC (services wheel volumes)
1352
1353     xc = 166.142*TMath::Cos(phi3*kDegrad);
1354     yc = 166.142*TMath::Sin(phi3*kDegrad);
1355
1356     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1357     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1358
1359
1360     // readout chambers->TDGN (drift gas)
1361
1362     xc = rInner*TMath::Cos(phi3*kDegrad);
1363     yc = rInner*TMath::Sin(phi3*kDegrad);
1364
1365     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1366
1367     xc = rOuter*TMath::Cos(phi3*kDegrad);
1368     yc = rOuter*TMath::Sin(phi3*kDegrad);
1369
1370     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1371
1372     nRotMat++;
1373
1374     theta2 = 0.; // reflection
1375
1376     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1377
1378     xc = rInner*TMath::Cos(phi3*kDegrad);
1379     yc = rInner*TMath::Sin(phi3*kDegrad);
1380
1381     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1382
1383     xc = rOuter*TMath::Cos(phi3*kDegrad);
1384     yc = rOuter*TMath::Sin(phi3*kDegrad);
1385
1386     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1387
1388     nRotMat++;
1389
1390   }
1391   // TPMW->TPC
1392
1393   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1394   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY");
1395
1396   //---------------------------------------------------------
1397   //  Tpc High Voltage Membrane - 100 microns of mylar
1398   //---------------------------------------------------------
1399
1400   dm[0]=82.8;
1401   dm[1]=252.;
1402   dm[2]=0.005;
1403
1404   gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3);
1405
1406   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1407
1408   // Tpc High Voltage membrane Holders
1409
1410   gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0);
1411
1412
1413
1414   // inner
1415
1416   dm[0]=79.3;
1417   dm[1]=82.8;
1418   dm[2]=0.2;
1419
1420   gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1421
1422   // outer
1423
1424   dm[0]= 252.;
1425   dm[1]= 257.9;
1426   dm[2]= 0.4;
1427
1428   gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1429
1430   //----------------------------------------------------------
1431   // TPc Support Rods - MAKROLON
1432   //----------------------------------------------------------
1433
1434   dm[0]= 0.9;
1435   dm[1]= 1.2;
1436
1437   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ
1438
1439
1440   for(Int_t nrod=0;nrod<18;nrod++){
1441     Float_t angle=innerOpenAngle*(Float_t)nrod;
1442
1443     xc=81.5*TMath::Cos(angle);
1444     yc=81.5*TMath::Sin(angle);
1445
1446     dm[2]=126.7;
1447
1448     gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3);
1449     gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3);
1450
1451     dm[2]=126.6;
1452
1453     xc=254.25*TMath::Cos(angle);
1454     yc=254.25*TMath::Sin(angle);
1455
1456     // rod number 54 contans the HV cable
1457
1458     if(nrod<17) {
1459       gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3);
1460       gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3);
1461     }
1462
1463   }
1464
1465   //----------------------------------------------------------
1466   // Tpc High Voltage Rod - MAKROLON + Copper cable
1467   //----------------------------------------------------------
1468
1469   // rod with cable (Left)
1470
1471   dm[0]=0.;
1472   dm[1]=2.25;
1473   dm[2]=126.6;
1474
1475   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1476
1477   // HV cable
1478
1479   dm[0]=0.;
1480   dm[1]=0.3;
1481   dm[2]=126.6;
1482
1483   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1484
1485   // empty space
1486
1487   dm[0]=0.3;
1488   dm[1]=1.;
1489   dm[2]=126.6;
1490
1491   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1492
1493   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1494   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1495
1496   // rod without cable
1497
1498   dm[0]=1.8;
1499   dm[1]=2.25;
1500   dm[2]=126.6;
1501
1502   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1503
1504   gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY");
1505   gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY");
1506
1507   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1508
1509   // services wheel cover -> wheel
1510
1511
1512   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1513   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1514
1515
1516   // put the wheel into the TPC
1517
1518   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1519   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1520
1521   //
1522
1523   gMC->Gsord("TPMW",6);
1524   gMC->Gsord("TSSW",6);
1525   gMC->Gsord("TSWC",6);
1526
1527   // put the TPC into ALIC (main mother volume)
1528
1529   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1530
1531 } // end of function
1532
1533
1534 //_____________________________________________________________________________
1535 void AliTPCv0::CreateMaterials()
1536 {
1537   //
1538   // Define materials for the TPC
1539   //
1540   AliTPC::CreateMaterials();
1541 }
1542
1543 //_____________________________________________________________________________
1544 void AliTPCv0::DrawDetector()
1545 {
1546   //
1547   // Draw a shaded view of the Time Projection Chamber version 0
1548   //
1549
1550   // Set everything unseen
1551   gMC->Gsatt("*", "seen", -1);
1552   //
1553   // Set ALIC mother transparent
1554   gMC->Gsatt("ALIC","SEEN",0);
1555   //
1556   // Set the volumes visible
1557   gMC->Gsatt("TPC ","SEEN",0);
1558   gMC->Gsatt("TOIN","SEEN",1);
1559   gMC->Gsatt("TOIN","COLO",7);
1560   gMC->Gsatt("TOCV","SEEN",1);
1561   gMC->Gsatt("TOCV","COLO",4);
1562   gMC->Gsatt("TSA1","SEEN",0);
1563   gMC->Gsatt("TSA2","SEEN",0);
1564   gMC->Gsatt("TSA3","SEEN",0);
1565   gMC->Gsatt("TSA4","SEEN",0);
1566   gMC->Gsatt("TSA5","SEEN",0);
1567   gMC->Gsatt("TOFC","SEEN",1);
1568   gMC->Gsatt("TOFC","COLO",4);
1569   gMC->Gsatt("TSA6","SEEN",0);
1570   gMC->Gsatt("TSA7","SEEN",0);
1571   gMC->Gsatt("TSA8","SEEN",0);
1572   gMC->Gsatt("TIIN","SEEN",1);
1573   gMC->Gsatt("TIIN","COLO",7);
1574   gMC->Gsatt("TII1","SEEN",0);
1575   gMC->Gsatt("TIFC","SEEN",1);
1576   gMC->Gsatt("TIFC","COLO",4);
1577   gMC->Gsatt("TSA9","SEEN",0);
1578   gMC->Gsatt("TS10","SEEN",0);
1579   gMC->Gsatt("TS11","SEEN",0);
1580   gMC->Gsatt("TS12","SEEN",0);
1581   gMC->Gsatt("TS13","SEEN",0);
1582   gMC->Gsatt("TS14","SEEN",0);
1583   gMC->Gsatt("TICC","SEEN",0);
1584   gMC->Gsatt("TICM","SEEN",0);
1585   gMC->Gsatt("TS15","SEEN",0);
1586   gMC->Gsatt("TS16","SEEN",0);
1587   gMC->Gsatt("TS17","SEEN",0);
1588   gMC->Gsatt("TS18","SEEN",0);
1589   gMC->Gsatt("TS19","SEEN",0);
1590   gMC->Gsatt("TPJ1","SEEN",0);
1591   gMC->Gsatt("TPJ2","SEEN",0);
1592   gMC->Gsatt("TICS","SEEN",0);
1593   gMC->Gsatt("TDGN","SEEN",0);
1594   gMC->Gsatt("TIRC","SEEN",0);
1595   gMC->Gsatt("TIC1","SEEN",1);
1596   gMC->Gsatt("TIPP","SEEN",0);
1597   gMC->Gsatt("TIC3","SEEN",0);
1598   gMC->Gsatt("TRCE","SEEN",0);
1599   gMC->Gsatt("TPSC","SEEN",0);
1600   gMC->Gsatt("TPCC","SEEN",0);
1601   gMC->Gsatt("TORC","SEEN",0);
1602   gMC->Gsatt("TOPP","SEEN",0);
1603   gMC->Gsatt("TOC3","SEEN",0);
1604   gMC->Gsatt("TOC1","SEEN",1);
1605   gMC->Gsatt("TSSW","SEEN",1);
1606   gMC->Gsatt("TSWC","SEEN",1);
1607   gMC->Gsatt("TSSW","COLO",3);
1608   gMC->Gsatt("TSWC","COLO",3);
1609   gMC->Gsatt("TSCE","COLO",6);
1610   gMC->Gsatt("TSCE","SEEN",1);
1611   gMC->Gsatt("TWES","SEEN",0);
1612   gMC->Gsatt("TSWB","SEEN",0);
1613   gMC->Gsatt("TPEL","SEEN",0);
1614   gMC->Gsatt("TPMW","SEEN",1);
1615   gMC->Gsatt("TESR","SEEN",1);
1616   gMC->Gsatt("TPMW","COLO",12);
1617   gMC->Gsatt("TIC1","COLO",5);
1618   gMC->Gsatt("TOC1","COLO",5);
1619   gMC->Gsatt("TESB","SEEN",0);
1620   gMC->Gsatt("THVM","SEEN",1);
1621   gMC->Gsatt("THVM","COLO",11);
1622   gMC->Gsatt("THVH","SEEN",0);
1623   gMC->Gsatt("TPSR","SEEN",0);
1624   gMC->Gsatt("THVL","SEEN",0);
1625   gMC->Gsatt("THVC","SEEN",0);
1626   gMC->Gsatt("THVE","SEEN",0);
1627   gMC->Gsatt("THVR","SEEN",0);
1628
1629   //
1630   gMC->Gdopt("hide", "on");
1631   gMC->Gdopt("shad", "on");
1632   gMC->Gsatt("*", "fill", 7);
1633   gMC->SetClipBox(".");
1634   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1635   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1636   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1637   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1638   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1639   gMC->DefaultRange();
1640   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1641   gMC->Gdhead(1111, "Time Projection Chamber");
1642   gMC->Gdman(18, 4, "MAN");
1643   gMC->Gdopt("hide","off");
1644 }
1645
1646 //_____________________________________________________________________________
1647 void AliTPCv0::Init()
1648 {
1649   //
1650   // Initialise Time Projection Chamber version 0
1651   //
1652   printf("TPC version 0 initialized\n");
1653 }
1654
1655 //_____________________________________________________________________________
1656 void AliTPCv0::StepManager()
1657 {
1658   //
1659   // Procedure called at each step in the TPC
1660   //
1661 }