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 1.16  2000/06/30 12:07:50  kowal2
  19 Updated from the TPC-PreRelease branch
  20
  21 Revision 1.15.2.4  2000/06/26 07:39:42  kowal2
  22 Changes to obey the coding rules
  23
  24 Revision 1.15.2.3  2000/06/25 08:38:41  kowal2
  25 Splitted from AliTPCtracking
  26
  27 Revision 1.15.2.2  2000/06/16 12:58:13  kowal2
  28 Changed parameter settings
  29
  30 Revision 1.15.2.1  2000/06/09 07:15:07  kowal2
  31
  32 Defaults loaded automatically (hard-wired)
  33 Optional parameters can be set via macro called in the constructor
  34
  35 Revision 1.15  2000/05/15 10:00:30  kowal2
  36 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  37
  38 Revision 1.14  2000/04/17 09:37:33  kowal2
  39 removed obsolete AliTPCDigitsDisplay.C
  40
  41 Revision 1.13.8.2  2000/04/10 08:33:44  kowal2
  42
  43 Updated readout chambers
  44
  45 Revision 1.13.8.1  2000/04/10 07:56:53  kowal2
  46 Not used anymore - removed
  47
  48 Revision 1.13  1999/11/04 17:28:06  fca
  49 Correct barrel part of HV Degrader
  50
  51 Revision 1.12  1999/10/08 06:27:23  fca
  52 Corrected bug in the HV degrader geometry, thanks to G.Tabary
  53
  54 Revision 1.11  1999/10/04 13:39:54  fca
  55 Correct array index problem
  56
  57 Revision 1.10  1999/09/29 09:24:34  fca
  58 Introduction of the Copyright and cvs Log
  59
  60 */
  61 //
  62
  63 ///////////////////////////////////////////////////////////////////////////////
  64 //                                                                           //
  65 //  Time Projection Chamber version 0 -- "coarse" TPC                        //
  66 //                                                                           //
  67 //Begin_Html
  68 /*
  69 <img src="picts/AliTPCv0Class.gif">
  70 */
  71 //End_Html
  72 //                                                                           //
  73 //                                                                           //
  74 ///////////////////////////////////////////////////////////////////////////////
  75
  76 #include <TMath.h>
  77 #include <TGeometry.h>
  78 #include <TNode.h>
  79 #include <TTUBE.h>
  80 #include "AliTPCv0.h"
  81 #include "AliRun.h"
  82 #include <iostream.h>
  83 #include <fstream.h>
  84 #include "AliMC.h"
  85 #include "AliConst.h"
  86
  87 #include "AliTPCParamSR.h"
  88 #include "AliTPCDigitsArray.h"
  89
  90 ClassImp(AliTPCv0)
  91
  92 //_____________________________________________________________________________
  93 AliTPCv0::AliTPCv0(const char *name, const char *title)
  94          :AliTPC(name, title)
  95 {
  96   //
  97   // Standard creator for TPC version 0
  98   //
  99
 100   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 101
 102   if (fTPCParam)
 103      fTPCParam->Write(fTPCParam->GetTitle());
 104 }
 105
 106 //_____________________________________________________________________________
 107 void AliTPCv0::CreateGeometry()
 108 {
 109   //
 110   // Creation of the TPC version 0, i.e. no sensitive volumes,
 111   // only the material distribution
 112   //
 113   //Begin_Html
 114   /*
 115     <img src="picts/AliTPC.gif">
 116   */
 117   //End_Html
 118   //Begin_Html
 119   /*
 120     <img src="picts/AliTPCv0Tree.gif">
 121   */
 122   //End_Html
 123
 124   //---------------------------------------------------------------
 125   //  TPC geometry
 126   //
 127   //  Origin: Marek Kowalski, INP Cracow
 128   //  Marek.Kowalski@ifj.edu.pl
 129   //---------------------------------------------------------------
 130
 131   Float_t dm[50];
 132
 133   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 134
 135   Int_t idrotm[120]; // rotation matrices
 136
 137   Int_t nRotMat = 0; // actual number of rotation matrices
 138
 139
 140   //
 141   //  Mother volume (Air) - all volumes will be positioned in it
 142   //
 143
 144   dm[0]=0.;
 145   dm[1]=360.;
 146   dm[2]=12.;
 147
 148   //
 149
 150   dm[3]= -283.7;
 151   dm[4]= 66.2;
 152   dm[5]= 277.95;
 153
 154   //
 155
 156   dm[6]= -255.6;
 157   dm[7]= 66.2;
 158   dm[8]= 277.95;
 159
 160   //
 161
 162   dm[9]= -73.3;
 163   dm[10]= 59.0;
 164   dm[11]= 277.95;
 165
 166   //
 167
 168   dm[12]= -73.3;
 169   dm[13]= 56.9;
 170   dm[14]= 277.95;
 171
 172   //
 173
 174   dm[15]= -72.1;
 175   dm[16]= 56.9;
 176   dm[17]= 277.95;
 177
 178   //
 179
 180   dm[18]= -72.1;
 181   dm[19]= 60.65;
 182   dm[20]= 277.95;
 183
 184   //
 185
 186   dm[21]= 72.1;
 187   dm[22]= 60.65;
 188   dm[23]= 277.95;
 189
 190   //
 191
 192   dm[24]= 72.1;
 193   dm[25]= 56.9;
 194   dm[26]= 277.95;
 195
 196   //
 197
 198   dm[27]= 73.3;
 199   dm[28]= 56.9;
 200   dm[29]= 277.95;
 201
 202   //
 203
 204   dm[30]= 73.3;
 205   dm[31]= 60.65;
 206   dm[32]= 277.95;
 207
 208   //
 209
 210   dm[33]= 250.4;
 211   dm[34]= 66.0;
 212   dm[35]= 277.95;
 213
 214   //
 215
 216   dm[36]= 283.7;
 217   dm[37]= 66.0;
 218   dm[38]= 277.95;
 219
 220
 221   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
 222
 223
 224   //-------------------------------------------------------------------
 225   //  Tpc Outer INsulator (CO2)
 226   //-------------------------------------------------------------------
 227
 228   dm[0]= 0.;
 229   dm[1]= 360.;
 230   dm[2]= 6.;
 231
 232   //
 233
 234   dm[3]= -253.6;
 235   dm[4]= 258.;
 236   dm[5]= 266.65;
 237
 238   //
 239
 240   dm[6]= -253.;
 241   dm[7]= 258.;
 242   dm[8]= 266.65;
 243
 244   dm[9]= -253.;
 245   dm[10]= 258.;
 246   dm[11]= 277.97;
 247
 248   dm[12]= 253.6;
 249   dm[13]= 258.;
 250   dm[14]= 277.97;
 251
 252   //
 253
 254   dm[15]= 253.6;
 255   dm[16]= 265.2;
 256   dm[17]= 277.95;
 257
 258   //
 259
 260   dm[18]= 255.6;
 261   dm[19]= 265.2;
 262   dm[20]= 277.95;
 263
 264
 265   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 266
 267   //---------------------------------------------------------------
 268   // shreds (G10) - TPC Rings
 269   //---------------------------------------------------------------
 270
 271   gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
 272
 273   dm[0]= 258.;
 274   dm[1]= 266.65;
 275   dm[2]= 0.3;
 276
 277   gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
 278
 279   //
 280
 281   dm[0]= 258.;
 282   dm[1]= 270.9;
 283   dm[2]= 0.3;
 284
 285   gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
 286
 287   //
 288
 289   dm[0]= 272.2;
 290   dm[1]= 277.95;
 291   dm[2]= 0.3;
 292
 293   gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
 294
 295   //----------------------------------------------------------------
 296   // Tpc Outer Contaiment Vessel
 297   //  mother volume - Al, daughters - composite (sandwich)
 298   //----------------------------------------------------------------
 299
 300   dm[0]= 0.;
 301   dm[1]= 360.;
 302   dm[2]=5.;
 303
 304   //
 305
 306   dm[3]= -250.4;
 307   dm[4]= 272.2;
 308   dm[5]= 277.95;
 309
 310   //
 311
 312   dm[6]= -248.4;
 313   dm[7]= 272.2;
 314   dm[8]= 277.95;
 315
 316   //
 317
 318   dm[9]= 253.6;
 319   dm[10]= 272.2;
 320   dm[11]= 277.95;
 321
 322   //
 323
 324   dm[12]= 253.6;
 325   dm[13]= 265.2;
 326   dm[14]= 277.95;
 327
 328   //
 329
 330   dm[15]= 255.6;
 331   dm[16]= 265.2;
 332   dm[17]= 277.95;
 333
 334   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,18);
 335
 336   // Daughter volumes
 337
 338   // Tpc SAndwich 1 - Al
 339
 340   dm[0]= 274.81;
 341   dm[1]= 277.95;
 342   dm[2]= 251.7;
 343
 344   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 345
 346   // Tpc SAndwich 2 - Tedlar
 347
 348   dm[0] += 5.e-3;
 349   dm[1] -= 5.e-3;
 350
 351   gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
 352
 353   // Tpc SAndwich 3 - Kevlar
 354
 355   dm[0] += 5e-3;
 356   dm[1] -= 5.e-3;
 357
 358   gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
 359
 360   // Tpc SAndwich 4 - NOMEX honeycomb
 361
 362   dm[0] += 0.06;
 363   dm[1] -= 0.06;
 364
 365   gMC->Gsvolu("TSA4","TUBE",idtmed[5],dm,3);
 366
 367   // 4->3->2->1->TOCV
 368
 369   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 370   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 371   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 372
 373   gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
 374
 375   // TCOV-> TOIN
 376
 377   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 378
 379   //-------------------------------------------------------
 380   //  Tpc Outer Field Cage
 381   //  mother volume - Al, daughters - composite (sandwich)
 382   //-------------------------------------------------------
 383
 384   dm[0]=0.;
 385   dm[1]=360.;
 386   dm[2]=6.;
 387
 388   dm[3]= -253.;
 389   dm[4]= 258.;
 390   dm[5]= 277.95;
 391
 392   //
 393
 394   dm[6]= -251.;
 395   dm[7]= 258.;
 396   dm[8]= 277.95;
 397
 398   //
 399
 400   dm[9]= -251.;
 401   dm[10]= 258.;
 402   dm[11]= 260.05;
 403
 404   //
 405
 406   dm[12]= 251.;
 407   dm[13]= 258.;
 408   dm[14]= 260.05;
 409
 410   //
 411
 412   dm[15]= 251.;
 413   dm[16]= 258.;
 414   dm[17]= 260.05;
 415
 416   //
 417
 418   dm[18]= 253.;
 419   dm[19]= 258.;
 420   dm[20]= 270.9;
 421
 422   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 423
 424   // Daughter volumes
 425
 426   // Tpc SAndwich 5 - Al
 427
 428   dm[0]= 258.;
 429   dm[1]= 260.05;
 430   dm[2]= 251.7;
 431
 432   gMC->Gsvolu("TSA5","TUBE",idtmed[4],dm,3);
 433
 434   // Tpc SAndwich 6 - Tedlar
 435
 436   dm[0] += 5.e-3;
 437   dm[1] -= 5.e-3;
 438
 439   gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
 440
 441   // Tpc SAndwich 7 - Kevlar
 442
 443   dm[0] += 5.e-3;
 444   dm[1] -= 5.e-3;
 445
 446   gMC->Gsvolu("TSA7","TUBE",idtmed[5],dm,3);
 447
 448   // Tpc SAndwich 8 - NOMEX
 449
 450   dm[0] += 0.02;
 451   dm[1] -= 0.02;
 452
 453   gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
 454
 455   // 8->7->6->5->TOFC
 456
 457   gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
 458   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 459   gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY");
 460
 461   gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
 462
 463   // TOFC->TOIN
 464
 465   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 466
 467   // TOIN->TPC
 468
 469   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 470
 471   //--------------------------------------------------------------------
 472   // Tpc Inner INsulator (CO2)
 473   //--------------------------------------------------------------------
 474
 475
 476   dm[0]=0.;
 477   dm[1]= 360.;
 478   dm[2]= 15.;
 479
 480   //
 481
 482   dm[3]= -255.6;
 483   dm[4]= 66.2;
 484   dm[5]= 74.8;
 485
 486   //
 487
 488   Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
 489
 490   dm[6]= -253.6;
 491   dm[7]= 59.0+ (253.6-73.3)*tanL;
 492   dm[8]= 74.8;
 493
 494   //
 495
 496   dm[9]= -253.6;
 497   dm[10]= dm[7];
 498   dm[11]= 79.2;
 499
 500   //
 501
 502   dm[12]= -73.3;
 503   dm[13]= 59.0;
 504   dm[14]= 79.2;
 505
 506   //
 507
 508   dm[15]= -73.3;
 509   dm[16]= 56.9;
 510   dm[17]= 79.2;
 511
 512   //
 513
 514   dm[18]= -72.1;
 515   dm[19]= 59.6;
 516   dm[20]= 79.2;
 517
 518   //
 519
 520   dm[21]= -72.1;
 521   dm[22]= 60.65;
 522   dm[23]= 79.2;
 523
 524   //
 525
 526   dm[24]= 72.1;
 527   dm[25]= 60.65;
 528   dm[26]= 79.2;
 529
 530   //
 531
 532   dm[27]= 72.1;
 533   dm[28]= 59.6;
 534   dm[29]= 79.2;
 535
 536   //
 537
 538   dm[30]= 73.3;
 539   dm[31]= 56.9;
 540   dm[32]= 79.2;
 541
 542   //
 543
 544   dm[33]= 73.3;
 545   dm[34]= 59.0;
 546   dm[35]= 79.2;
 547
 548   //
 549
 550   dm[36]= 250.4;
 551   dm[37]= 66.0;
 552   dm[38]= 79.2;
 553
 554   //
 555
 556   dm[39]= 253.0;
 557   dm[40]= 66.0;
 558   dm[41]= 79.2;
 559
 560   //
 561
 562   dm[42]= 253.0;
 563   dm[43]= 75.3;
 564   dm[44]= 79.2;
 565
 566   //
 567
 568   dm[45]= 253.6;
 569   dm[46]= 75.3;
 570   dm[47]= 79.2;
 571
 572   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
 573
 574
 575   //--------------------------------------------------------------------
 576   //  Tpc Inner Containment vessel, Left part
 577   //  mother volume - Al, daughter - composite (sandwich)
 578   //--------------------------------------------------------------------
 579
 580   dm[0]= 0.;
 581   dm[1]= 360.;
 582   dm[2]= 8.;
 583
 584   //
 585
 586   dm[3]= -255.6;
 587   dm[4]= 66.2;
 588   dm[5]= 74.8;
 589
 590   //
 591
 592   Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
 593   Float_t sandThick = 2.14; // cone composite thickness
 594
 595
 596   //
 597
 598   dm[6]= -253.6;
 599   dm[7]= 59.0 + (253.6-73.3)*tanL;
 600   dm[8]= 74.8;
 601
 602   //
 603
 604   dm[9]= -253.6;
 605   dm[10]= dm[7];
 606   dm[11]= dm[7]+sandThick/cosL;
 607
 608   //
 609
 610   dm[12]= -75.6;
 611   dm[13]= 59.0+(75.6-73.3)*tanL;
 612   dm[14]= dm[13]+sandThick/cosL;
 613
 614   //
 615
 616   dm[15]= -75.6;
 617   dm[16]= dm[13];
 618   dm[17]= 60.65;
 619
 620   //
 621
 622   dm[18]= -73.3;
 623   dm[19]= 59.0;
 624   dm[20]= 60.65;
 625
 626   //
 627
 628   dm[21]= -73.3;
 629   dm[22]= 56.9;
 630   dm[23]= 60.65;
 631
 632   //
 633
 634   dm[24]= -72.1;
 635   dm[25]= 56.9;
 636   dm[26]= 60.65;
 637
 638   gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
 639
 640   // Daughter volumes
 641
 642   // Tpc SAndwich 9 - Al
 643
 644   dm[0]= 0.;
 645   dm[1]= 360.;
 646   dm[2]= 2.;
 647
 648   //
 649
 650   dm[3]= - 254.3;
 651   dm[4]= 59.0+(254.3-73.3)*tanL;
 652   dm[5]= dm[4]+sandThick/cosL;
 653
 654   //
 655
 656   dm[6]= -78.3;
 657   dm[7]= 59.0+(78.3-73.3)*tanL;
 658   dm[8]= dm[7]+sandThick/cosL;
 659
 660   //
 661
 662   gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
 663
 664   // Tpc SAndwich 10 - Tedlar
 665
 666   dm[4]+= 5.e-3/cosL;
 667   dm[5]-= 5.e-3/cosL;
 668
 669   //
 670
 671   dm[7]+= 5.e-3/cosL;
 672   dm[8]+= 5.e-3/cosL;
 673
 674   gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9);
 675
 676   // Tpc SAndwich 11 - Kevlar
 677
 678   dm[4]+= 5.e-3/cosL;
 679   dm[5]-= 5.e-3/cosL;
 680
 681   //
 682
 683   dm[7]+= 5.e-3/cosL;
 684   dm[8]+= 5.e-3/cosL;
 685
 686   gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9);
 687
 688   // Tpc SAndwich 12 - NOMEX
 689
 690   dm[4]+= 0.06/cosL;
 691   dm[5]-= 0.06/cosL;
 692
 693   //
 694
 695   dm[7]+= 0.06/cosL;
 696   dm[8]+= 0.06/cosL;
 697
 698   gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);
 699
 700   // 12->11->10->9
 701
 702   gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
 703   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 704   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 705
 706   // TSA9->TICL
 707
 708   gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
 709
 710   //--------------------------------------------------------------------
 711   //  Tpc Inner Containment vessel, Right part
 712   //  mother volume - Al, daughter - composite (sandwich)
 713   //--------------------------------------------------------------------
 714
 715   dm[0]= 0.;
 716   dm[1]= 360.;
 717   dm[2]=8.;
 718
 719   //
 720
 721   dm[3]= 72.1;
 722   dm[4]= 56.9;
 723   dm[5]= 60.65;
 724
 725   //
 726
 727   dm[6]= 73.3;
 728   dm[7]= 56.9;
 729   dm[8]= 60.65;
 730
 731   //
 732
 733   dm[9]= 73.3;
 734   dm[10]= 59.0;
 735   dm[11]= 60.65;
 736
 737   //
 738
 739   Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
 740   Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
 741
 742   //
 743
 744   dm[12]= 75.6;
 745   dm[13]= 59.0+(75.6-73.3)*tanR;
 746   dm[14]= 60.65;
 747
 748   //
 749
 750   dm[15]= 75.6;
 751   dm[16]= dm[13];
 752   dm[17]= dm[16]+sandThick/cosR;
 753
 754   //
 755
 756   dm[18]= 248.4;
 757   dm[19]= 59.0+(248.4-73.3)*tanR;
 758   dm[20]= dm[19]+sandThick/cosR;
 759
 760   //
 761
 762   dm[21]= 248.4;
 763   dm[22]= dm[19];
 764   dm[23]= 70.2;
 765
 766   //
 767
 768   dm[24]= 250.4;
 769   dm[25]= 66.0;
 770   dm[26]= 70.2;
 771
 772   gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
 773
 774
 775
 776   // Daughter volumes
 777
 778   // Tpc SAndwich 13 - Al
 779
 780   dm[0]= 0.;
 781   dm[1]= 360.;
 782   dm[2]= 2.;
 783
 784   //
 785
 786   dm[3]= 78.3;
 787   dm[4]= 59.0+(78.3-73.3)*tanR;
 788   dm[5]= dm[4]+sandThick/cosR;
 789
 790   //
 791
 792   dm[6]= 249.1;
 793   dm[7]= 59.0+(249.1-73.3)*tanR;
 794   dm[8]= dm[7]+sandThick/cosR;
 795
 796   //
 797
 798   gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
 799
 800   // Tpc SAndwich 14 - Tedlar
 801
 802   dm[4]+= 5.e-3/cosR;
 803   dm[5]-= 5.e-3/cosR;
 804
 805   //
 806
 807   dm[7]+= 5.e-3/cosR;
 808   dm[8]+= 5.e-3/cosR;
 809
 810   gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9);
 811
 812   // Tpc SAndwich 15 - Kevlar
 813
 814   dm[4]+= 5.e-3/cosR;
 815   dm[5]-= 5.e-3/cosR;
 816
 817   //
 818
 819   dm[7]+= 5.e-3/cosR;
 820   dm[8]+= 5.e-3/cosR;
 821
 822   gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9);
 823
 824   // Tpc SAndwich 16 - NOMEX
 825
 826   dm[4]+= 0.06/cosR;
 827   dm[5]-= 0.06/cosR;
 828
 829   //
 830
 831   dm[7]+= 0.06/cosR;
 832   dm[8]+= 0.06/cosR;
 833
 834   gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);
 835
 836   // 16->15->14->13
 837
 838   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 839   gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
 840   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 841
 842   // TS12->TICR
 843
 844   gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
 845
 846   //------------------------------------------------------
 847   // Tpc Inner Field Cage
 848   // mother volume - Al, daughters - composite (sandwich)
 849   //------------------------------------------------------
 850
 851   dm[0]= 0.;
 852   dm[1]= 360.;
 853   dm[2]=6.;
 854
 855   //
 856
 857   dm[3]= -253.0;
 858   dm[4]= 70.7;
 859   dm[5]= 79.2;
 860
 861   //
 862
 863   dm[6]= -251.0;
 864   dm[7]= 70.7;
 865   dm[8]= 79.2;
 866
 867   //
 868
 869   dm[9]= -251.0;
 870   dm[10]= 77.15;
 871   dm[11]= 79.2;
 872
 873   //
 874
 875   dm[12]= 251.0;
 876   dm[13]= 77.15;
 877   dm[14]= 79.2;
 878
 879   //
 880
 881   dm[15]= 251.0;
 882   dm[16]= 66.0;
 883   dm[17]= 79.2;
 884
 885   //
 886
 887   dm[18]= 253.0;
 888   dm[19]= 66.0;
 889   dm[20]= 79.2;
 890
 891   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
 892
 893   // Daughter volumes
 894
 895   // Tpc Sandwich 17 - Al
 896
 897   dm[0]= 77.15;
 898   dm[1]= 79.2;
 899   dm[2]= 251.7;
 900
 901   gMC->Gsvolu("TS17","TUBE",idtmed[4],dm,3);
 902
 903   // Tpc Sandwich 18 - Tedlar
 904
 905   dm[0]+= 5.e-3;
 906   dm[1]-= 5.e-3;
 907
 908   gMC->Gsvolu("TS18","TUBE",idtmed[9],dm,3);
 909
 910   // Tpc Sandwich 19 - Kevlar
 911
 912   dm[0]+= 5.e-3;
 913   dm[1]-= 5.e-3;
 914
 915   gMC->Gsvolu("TS19","TUBE",idtmed[5],dm,3);
 916
 917   // Tpc Sandwich 20 - NOMEX
 918
 919   dm[0]+= 0.06;
 920   dm[1]-= 0.06;
 921
 922   gMC->Gsvolu("TS20","TUBE",idtmed[6],dm,3);
 923
 924   // 20->19->18->17
 925
 926   gMC->Gspos("TS20",1,"TS19",0.,0.,0.,0,"ONLY");
 927   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 928   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 929
 930   // TS17->TIFC
 931
 932   gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
 933
 934   // TPC Rings
 935
 936   dm[0]= 70.7;
 937   dm[1]= 79.2;
 938   dm[2]= 0.3;
 939
 940   gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
 941
 942   dm[0]= 66.0;
 943   dm[1]= 70.2;
 944
 945   gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
 946
 947   dm[0]= 75.3;
 948   dm[1]= 79.2;
 949
 950   gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);
 951
 952   // TICL->TIIN
 953
 954   gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
 955
 956   // TICR->TIIN
 957
 958   gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
 959
 960   // TIFC->TIIN
 961
 962   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 963
 964   // Tpc Sandwich 21 - Al (central barrel)
 965
 966   dm[0]= 77.15;
 967   dm[1]= 79.2;
 968   dm[2]= 75.2;
 969
 970   gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
 971
 972   // Tpc Sandwich 22 - Tedlar (central barrel)
 973
 974   dm[0]+= 5.e-3;
 975   dm[1]-= 5.e-3;
 976
 977   gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3);
 978
 979   // Tpc Sandwich 23 - Kevlar (central barrel)
 980
 981   dm[0]+= 5.e-3;
 982   dm[1]-= 5.e-3;
 983
 984   gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3);
 985
 986   // Tpc Sandwich 24 - NOMEX (central barrel)
 987
 988   dm[0]+= 0.02;
 989   dm[1]-= 0.02;
 990
 991   gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3);
 992
 993   // 24->23->22->21
 994
 995   gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
 996   gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
 997   gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
 998
 999   gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1000
1001   // put everything into the TPC
1002
1003   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1004
1005
1006   //---------------------------------------------------------
1007   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1008   //  and its daughters (HV membrane, rods, readout chambers)
1009   //---------------------------------------------------------
1010
1011   dm[0]= 79.2;
1012   dm[1]= 258.0;
1013   dm[2]= 253.6;
1014
1015   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
1016
1017   // sector opening angles
1018
1019   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1020
1021   // sector angle shift
1022
1023   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1024
1025   // number of sectors
1026
1027   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1028   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1029
1030   // All above parameters are identical for inner and outer
1031   // sectors. The distinction is kept for the historical reasons
1032   // and eventually will disappear.
1033
1034   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1035   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1036   Float_t space;
1037
1038   //-------------------------------------------------------------------------
1039   //   Tpc Inner Readout Chambers
1040   //-------------------------------------------------------------------------
1041
1042   dm[0]= 14.483;
1043   dm[1]= 23.3345;
1044   dm[2]= 1.6; // thickness
1045   dm[3]= 25.1;
1046
1047   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1048
1049   // this volume will be positioned in the empty space
1050   // of the end-cap to avoid overlaps
1051
1052   dm[0]= 13.7305;
1053   dm[1]= 21.1895;
1054   dm[2]= 2.25;
1055   dm[3]= 21.15;
1056
1057   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1058
1059
1060   //------------------------------------------------
1061   // Tpc Inner readout chamber Pad Plane
1062   //------------------------------------------------
1063
1064   dm[0]= 14.483;
1065   dm[1]= 23.3345;
1066   dm[2]= 0.5;
1067   dm[3]= 25.1;
1068
1069   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1070
1071   //
1072
1073   dm[0] -= 1.218511934;
1074   dm[1] -= 1.218511934;
1075   dm[2] = 0.35;
1076
1077   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
1078
1079   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1080
1081   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1082
1083
1084   //----------------------------------------------
1085   // Tpc Readout Chambers Empty spaces - for both
1086   // inner and outer sectors
1087   //----------------------------------------------
1088
1089   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1090
1091   // Inner sector - 4 spaces
1092
1093
1094   dm[3] = 4.7625;
1095   dm[0] = 12.472;
1096
1097   Float_t rr = 90.52;
1098   Float_t zz;
1099
1100   zz= -12.7875;
1101
1102   space = rr*tanAlpha-dm[0];
1103
1104   for(Int_t nsLow=0;nsLow<4;nsLow++){
1105
1106     rr += 9.525;
1107     dm[1]= rr*tanAlpha - space;
1108
1109     dm[2]=0.8;
1110
1111     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1112
1113     //
1114
1115     dm[2] = 1.2;
1116
1117     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1118
1119     rr += 0.4;
1120     dm[0] = rr*tanAlpha - space;
1121     zz += (0.4+9.525);
1122
1123   }
1124
1125   dm[0]= 12.472;
1126   // dm[1] - this is the dm[1] from the previous TRCE
1127   dm[2]= 1.05;
1128   dm[3]= 19.65;
1129
1130   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1131
1132   //
1133   // TPc Space for Connectors
1134   //
1135
1136   dm[0]= .3;
1137   dm[1]= .3;
1138   dm[2]= 4.5;
1139
1140   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1141
1142   // TPC Connectors
1143
1144   dm[0]= .25;
1145   dm[1]= .15;
1146   dm[2]= 3.75;
1147
1148   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1149
1150   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1151
1152   zz = -12.7875;
1153
1154
1155   Float_t alpha;
1156   Float_t astep;
1157
1158   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1159
1160   // inner part of the inner sector - 2 x 20 holes
1161
1162   astep = 20.00096874/19.;
1163
1164   alpha = 10.00048437-astep;
1165
1166   Float_t x1,x2;
1167
1168     x1 = 13.31175725;
1169     x1 -= 0.996357832;
1170
1171     x2 = 15.06180253;
1172     x2 -= 1.163028812;
1173
1174   Int_t ncon;
1175
1176   for(ncon=0;ncon<20;ncon++){
1177
1178     phi1 = 0.;
1179     theta1 = 90.+alpha;
1180     phi2=90.;
1181     theta2 = 90.;
1182     phi3 = (alpha>0) ? 0. : 180.;
1183     theta3 = TMath::Abs(alpha);
1184
1185     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1186
1187
1188
1189     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1190     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1191
1192
1193     x1 -= 1.296357833;
1194     x2 -= 1.463028812;
1195
1196     alpha -= astep;
1197     nRotMat++;
1198
1199   }
1200
1201   // outer part of the inner sector - 2 x 25 holes
1202
1203    astep = 20.00096874/24.;
1204    alpha = 10.00048437-astep;
1205
1206    x1 = 16.81184781;
1207    x1 -= 1.016295986;
1208
1209    x2 = 18.5618931;
1210    x2 -= 1.150914854;
1211
1212   for(ncon=0;ncon<25;ncon++){
1213
1214     phi1 = 0.;
1215     theta1 = 90.+alpha;
1216     phi2=90.;
1217     theta2 = 90.;
1218     phi3 = (alpha>0) ? 0. : 180.;
1219     theta3 = TMath::Abs(alpha);
1220
1221     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1222
1223
1224
1225     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1226     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1227
1228
1229     x1 -= 1.316295986;
1230     x2 -= 1.450914854;
1231
1232     alpha -= astep;
1233     nRotMat++;
1234
1235   }
1236
1237   //--------------------------------------------------------------------------
1238   //  TPC Outer Readout Chambers
1239   //  this is NOT a final design
1240   //--------------------------------------------------------------------------
1241
1242   dm[0]= 23.3875;
1243   dm[1]= 43.524;
1244   dm[2]= 1.5; //thickness
1245   dm[3]= 57.1;
1246
1247   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1248
1249   //------------------------------------------------
1250   // Tpc Outer readout chamber Pad Plane
1251   //------------------------------------------------
1252
1253   dm[2]= 0.5;
1254
1255   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1256
1257   dm[0] -= 1.218511934;
1258   dm[1] -= 1.218511934;
1259   dm[2] = 0.35;
1260
1261   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1262
1263   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1264
1265   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1266
1267   // empty space
1268
1269   dm[0]= 21.035;
1270   dm[1]= 38.7205;
1271   dm[2]= 0.7;
1272   dm[3]= 50.15;
1273
1274   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1275
1276   dm[0]= 22.2935;
1277   dm[1]= 40.5085;
1278   dm[2]= 2.25;
1279   dm[3]= 51.65;
1280
1281   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1282
1283   dm[0]= 21.35;
1284   dm[1]= 38.7205;
1285   dm[2]= 2.25;
1286   dm[3]= 50.15;
1287
1288   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1289
1290   //-----------------------------------------------
1291   // Tpc Services Support Wheel
1292   //-----------------------------------------------
1293
1294   dm[0]=0.;
1295   dm[1]=360.;
1296   dm[2]=18.;
1297   dm[3]=2.;
1298
1299   dm[4]= -5.;
1300   dm[5]= 77.017;
1301   dm[6]= 255.267;
1302
1303   dm[7]= 5.;
1304   dm[8]= dm[5];
1305   dm[9]= dm[6];
1306
1307   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1308
1309   // Tpc Services Wheel Cover
1310
1311   dm[4]= -0.5;
1312   dm[7]= 0.5;
1313
1314   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1315
1316   // Tpc Service wheel Cover Empty space
1317
1318   dm[0]= 10.99;
1319   dm[1]= 39.599;
1320   dm[2]= .5;
1321   dm[3]= 81.125;
1322
1323   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1324
1325   // Tpc services Wheel Empty Spaces
1326
1327   dm[0]= 13.18017507;
1328   dm[1]= 44.61045938;
1329   dm[2]= 4.;
1330   dm[3]= 89.125;
1331
1332   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1333
1334   // Tpc Services Wheel Bars
1335
1336   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1337
1338   // bars-> TWES
1339
1340   dm[2]= 4.;
1341   dm[3]= .4;
1342
1343   dm[0]= 13.8149522;
1344   dm[1]= 13.95601379;
1345
1346   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1347
1348   dm[0]= 43.83462067;
1349   dm[1]= 43.97568225;
1350
1351   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1352
1353   // TPc ELectronics - right now 30% X0 Si
1354
1355   dm[0]= 14.03813696;
1356   dm[1]= 43.3524075;
1357   dm[2]= 1.404;
1358   dm[3]= 83.125;
1359
1360   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1361   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1362
1363   //--------------------------------------------------------------------------
1364   //  End caps
1365   //--------------------------------------------------------------------------
1366
1367   // TPc Main Wheel - Al
1368
1369   dm[0]= 75.3;
1370   dm[1]= 264.8;
1371   dm[2]= 3.0;
1372
1373   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1374
1375   // TPc Extra Wheel (to avoid overlapping) - Al
1376
1377   dm[0]= 264.8;
1378   dm[1]= 277.0;
1379   dm[2]= 1.95;
1380
1381   gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1382
1383   //--------------------------------------------------------------------------
1384   //  Tpc Empty Space for the Readout chambers
1385   //--------------------------------------------------------------------------
1386
1387   Float_t rLow= 86.2;
1388   Float_t rUp= 243.5;
1389   Float_t dR = 0.5*(rUp-rLow);
1390
1391   space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1392
1393   dm[0]= rLow*tanAlpha-space;
1394   dm[1]= rUp*tanAlpha-space;
1395   dm[2] = 3.0;
1396   dm[3]= dR;
1397
1398   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1399
1400   // TIC1->TESR
1401
1402   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1403
1404   // TOC1->TESR
1405
1406   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1407
1408   // Tpc Empty Space Bars - Al (daughters of TESR)
1409
1410   Float_t zBar;
1411
1412   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1413
1414   // lower bar
1415
1416   dm[0]= rLow*tanAlpha-space;
1417   dm[1]= 88.7*tanAlpha-space;
1418   dm[2]= 0.95;
1419   dm[3]= 1.275;
1420
1421   zBar = -dR+dm[3];
1422
1423   gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1424
1425   // middle bar
1426
1427   dm[0]= 131.65*tanAlpha-space;
1428   dm[1]= 136.5*tanAlpha-space;
1429   dm[3]= 2.425;
1430
1431   zBar = -dR +131.65+dm[3]-rLow;
1432
1433   gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1434
1435   // upper bar
1436
1437   dm[0]= 240.4*tanAlpha-space;
1438   dm[1]= rUp*tanAlpha-space;
1439   dm[3]= 1.55;
1440
1441   zBar = dR-dm[3];
1442
1443   gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1444
1445   //  positioning of the empty spaces into the main wheel
1446
1447
1448
1449   Float_t rCenter,xc,yc;
1450   Float_t rInner,rOuter; // center of the inner and outer chamber
1451
1452   rCenter = rLow+dR;
1453
1454   rInner = 108.07;
1455   rOuter = 190.68;
1456
1457
1458   for(Int_t ns=0; ns<nInnerSector;ns++){
1459
1460     phi1 = ns * innerOpenAngle + innerAngleShift;
1461     phi1 *= kRaddeg; // in degrees
1462
1463     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1464
1465     if (phi1 > 360.) phi1 -= 360.;
1466
1467     theta1 = 90.;
1468     phi2   = 90.;
1469     theta2 = 180.;
1470     phi3   = ns * innerOpenAngle + innerAngleShift;
1471     phi3 *= kRaddeg; // in degrees
1472
1473     phi3 = (Float_t)TMath::Nint(phi3);
1474
1475     if(phi3 > 360.) phi3 -= 360.;
1476
1477     theta3 = 90.;
1478
1479     // "holes"->End plate
1480
1481     xc = rCenter*TMath::Cos(phi3*kDegrad);
1482     yc = rCenter*TMath::Sin(phi3*kDegrad);
1483
1484     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1485
1486     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1487
1488     // TSCE->TSWC (services wheel volumes)
1489
1490     xc = 166.142*TMath::Cos(phi3*kDegrad);
1491     yc = 166.142*TMath::Sin(phi3*kDegrad);
1492
1493     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1494     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1495
1496
1497     // readout chambers->TDGN (drift gas)
1498
1499     xc = rInner*TMath::Cos(phi3*kDegrad);
1500     yc = rInner*TMath::Sin(phi3*kDegrad);
1501
1502     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1503
1504     xc = rOuter*TMath::Cos(phi3*kDegrad);
1505     yc = rOuter*TMath::Sin(phi3*kDegrad);
1506
1507     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1508
1509     nRotMat++;
1510
1511     theta2 = 0.; // reflection
1512
1513     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1514
1515     xc = rInner*TMath::Cos(phi3*kDegrad);
1516     yc = rInner*TMath::Sin(phi3*kDegrad);
1517
1518     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",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+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1524
1525     nRotMat++;
1526
1527   }
1528
1529   // reflection matrix
1530
1531   theta1 = 90.;
1532   phi1   = 0.;
1533   theta2 = 90.;
1534   phi2   = 270.;
1535   theta3 = 180.;
1536   phi3   = 0.;
1537
1538   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1539
1540
1541   // TPMW->TPC
1542
1543   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1544   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1545   gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1546   gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY");
1547
1548
1549
1550   //-------------------------------------------------------
1551   // Tpc High Voltage Membrane - NOMEX honeycomb
1552   //-------------------------------------------------------
1553
1554   dm[0]=0.,
1555   dm[1]=360.;
1556   dm[2]=18.;
1557   dm[3]=2.;
1558
1559   //
1560
1561   dm[4]= -0.3;
1562   dm[5]= 81.156;
1563   dm[6]= 253.386;
1564
1565   //
1566
1567   dm[7]= 0.3;
1568   dm[8]= dm[5];
1569   dm[9]= dm[6];
1570
1571   gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1572
1573   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1574
1575   //----------------------------------------------------------
1576   // TPc Support Rods - MAKROLON
1577   //----------------------------------------------------------
1578
1579   dm[0]= 0.9;
1580   dm[1]= 1.2;
1581   dm[2]= 126.65;
1582
1583   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1584
1585   for(Int_t nrod=1;nrod<18;nrod++){
1586     Float_t angle=innerOpenAngle*(Float_t)nrod;
1587
1588     xc=82.4*TMath::Cos(angle);
1589     yc=82.4*TMath::Sin(angle);
1590
1591     gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
1592     gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
1593
1594     xc=254.2*TMath::Cos(angle);
1595     yc=254.2*TMath::Sin(angle);
1596
1597     gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
1598     gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");
1599
1600   }
1601
1602   //----------------------------------------------------------
1603   // Tpc High Voltage rod - MAKROLON + Copper cable
1604   //----------------------------------------------------------
1605
1606   // rod with cable (Left)
1607
1608   dm[0]=0.;
1609   dm[1]=2.25;
1610   dm[2]=126.65;
1611
1612   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1613
1614   // HV cable
1615
1616   dm[0]=0.;
1617   dm[1]=0.3;
1618   dm[2]=126.65;
1619
1620   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1621
1622   // empty space
1623
1624   dm[0]=0.3;
1625   dm[1]=1.;
1626   dm[2]=126.65;
1627
1628   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1629
1630   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1631   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1632
1633   // rod without cable
1634
1635   dm[0]=1.8;
1636   dm[1]=2.25;
1637   dm[2]=126.65;
1638
1639   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1640
1641
1642
1643   gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
1644   gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
1645
1646   gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
1647   gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");
1648
1649
1650
1651   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1652
1653
1654   // services wheel cover -> wheel
1655
1656
1657   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1658   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1659
1660
1661   // put the wheel into the TPC
1662
1663   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1664   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1665
1666   //
1667
1668   gMC->Gsord("TPMW",6);
1669   gMC->Gsord("TSSW",6);
1670   gMC->Gsord("TSWC",6);
1671
1672   // put the TPC into ALIC (main mother volume)
1673
1674   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1675
1676 } // end of function
1677
1678
1679 //_____________________________________________________________________________
1680 void AliTPCv0::CreateMaterials()
1681 {
1682   //
1683   // Define materials for the TPC
1684   //
1685   AliTPC::CreateMaterials();
1686 }
1687
1688 //_____________________________________________________________________________
1689 void AliTPCv0::DrawDetector()
1690 {
1691   //
1692   // Draw a shaded view of the Time Projection Chamber version 0
1693   //
1694
1695   // Set everything unseen
1696   gMC->Gsatt("*", "seen", -1);
1697   //
1698   // Set ALIC mother transparent
1699   gMC->Gsatt("ALIC","SEEN",0);
1700   //
1701   // Set the volumes visible
1702   gMC->Gsatt("TPC ","SEEN",0);
1703   gMC->Gsatt("TOIN","SEEN",1);
1704   gMC->Gsatt("TOIN","COLO",7);
1705   gMC->Gsatt("TPCR","SEEN",0);
1706   gMC->Gsatt("TOCV","SEEN",1);
1707   gMC->Gsatt("TOCV","COLO",4);
1708   gMC->Gsatt("TSA1","SEEN",0);
1709   gMC->Gsatt("TSA2","SEEN",0);
1710   gMC->Gsatt("TSA3","SEEN",0);
1711   gMC->Gsatt("TSA4","SEEN",0);
1712   gMC->Gsatt("TOFC","SEEN",1);
1713   gMC->Gsatt("TOFC","COLO",4);
1714   gMC->Gsatt("TSA5","SEEN",0);
1715   gMC->Gsatt("TSA6","SEEN",0);
1716   gMC->Gsatt("TSA7","SEEN",0);
1717   gMC->Gsatt("TSA8","SEEN",0);
1718   gMC->Gsatt("TIIN","COLO",7);
1719   gMC->Gsatt("TIIN","SEEN",1);
1720   gMC->Gsatt("TICL","SEEN",0);
1721   gMC->Gsatt("TSA9","SEEN",0);
1722   gMC->Gsatt("TS10","SEEN",0);
1723   gMC->Gsatt("TS11","SEEN",0);
1724   gMC->Gsatt("TS12","SEEN",0);
1725   gMC->Gsatt("TICR","SEEN",0);
1726   gMC->Gsatt("TS13","SEEN",0);
1727   gMC->Gsatt("TS14","SEEN",0);
1728   gMC->Gsatt("TS15","SEEN",0);
1729   gMC->Gsatt("TS16","SEEN",0);
1730   gMC->Gsatt("TIFC","SEEN",1);
1731   gMC->Gsatt("TIFC","COLO",4);
1732   gMC->Gsatt("TS17","SEEN",0);
1733   gMC->Gsatt("TS18","SEEN",0);
1734   gMC->Gsatt("TS19","SEEN",0);
1735   gMC->Gsatt("TS20","SEEN",0);
1736   gMC->Gsatt("TS21","SEEN",0);
1737   gMC->Gsatt("TS22","SEEN",0);
1738   gMC->Gsatt("TS23","SEEN",0);
1739   gMC->Gsatt("TS24","SEEN",0);
1740   gMC->Gsatt("TDGN","SEEN",0);
1741   gMC->Gsatt("TIRC","SEEN",0);
1742   gMC->Gsatt("TIC1","SEEN",1);
1743   gMC->Gsatt("TIPP","SEEN",0);
1744   gMC->Gsatt("TIC3","SEEN",0);
1745   gMC->Gsatt("TRCE","SEEN",0);
1746   gMC->Gsatt("TPSC","SEEN",0);
1747   gMC->Gsatt("TPCC","SEEN",0);
1748   gMC->Gsatt("TORC","SEEN",0);
1749   gMC->Gsatt("TOPP","SEEN",0);
1750   gMC->Gsatt("TOC3","SEEN",0);
1751   gMC->Gsatt("TOC1","SEEN",1);
1752   gMC->Gsatt("TSSW","SEEN",1);
1753   gMC->Gsatt("TSWC","SEEN",1);
1754   gMC->Gsatt("TSCE","SEEN",1);
1755   gMC->Gsatt("TSSW","COLO",3);
1756   gMC->Gsatt("TSWC","COLO",3);
1757   gMC->Gsatt("TSCE","COLO",6);
1758   gMC->Gsatt("TWES","SEEN",0);
1759   gMC->Gsatt("TSWB","SEEN",0);
1760   gMC->Gsatt("TPEL","SEEN",0);
1761   gMC->Gsatt("TPMW","SEEN",1);
1762   gMC->Gsatt("TPEW","SEEN",1);
1763   gMC->Gsatt("TESR","SEEN",1);
1764   gMC->Gsatt("TPMW","COLO",12);
1765   gMC->Gsatt("TPEW","COLO",12);
1766   gMC->Gsatt("TWES","COLO",5);
1767   gMC->Gsatt("TIC1","COLO",5);
1768   gMC->Gsatt("TOC1","COLO",5);
1769   gMC->Gsatt("TESB","SEEN",0);
1770   gMC->Gsatt("THVM","SEEN",1);
1771   gMC->Gsatt("THVM","COLO",11);
1772   gMC->Gsatt("TPSR","SEEN",0);
1773   gMC->Gsatt("THVL","SEEN",0);
1774   gMC->Gsatt("THVC","SEEN",0);
1775   gMC->Gsatt("THVE","SEEN",0);
1776   gMC->Gsatt("THVR","SEEN",0);
1777   //
1778   gMC->Gdopt("hide", "on");
1779   gMC->Gdopt("shad", "on");
1780   gMC->Gsatt("*", "fill", 7);
1781   gMC->SetClipBox(".");
1782   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1783   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1784   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1785   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1786   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1787   gMC->DefaultRange();
1788   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1789   gMC->Gdhead(1111, "Time Projection Chamber");
1790   gMC->Gdman(18, 4, "MAN");
1791   gMC->Gdopt("hide","off");
1792 }
1793
1794 //_____________________________________________________________________________
1795 void AliTPCv0::Init()
1796 {
1797   //
1798   // Initialise Time Projection Chamber version 0
1799   //
1800   printf("TPC version 0 initialized\n");
1801 }
1802
1803 //_____________________________________________________________________________
1804 void AliTPCv0::StepManager()
1805 {
1806   //
1807   // Procedure called at each step in the TPC
1808   //
1809 }