TPC/AliTPCv1.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 1.32  2002/11/21 22:43:32  alibrary
  19 Removing AliMC and AliMCProcess
  20
  21 Revision 1.31  2002/10/23 07:17:34  alibrary
  22 Introducing Riostream.h
  23
  24 Revision 1.30  2001/06/12 07:07:41  kowal2
  25 New files for folder and stack
  26
  27 Revision 1.29  2001/05/08 16:03:06  kowal2
  28 Geometry update according to the latest technical spec.
  29
  30 Revision 1.28  2001/04/27 15:23:07  kowal2
  31 Correct materian in the central part of the inner containment vessel
  32
  33 Revision 1.27  2001/04/26 06:15:12  kowal2
  34 Corrected bug in the inner containment vessel (cones)
  35
  36 Revision 1.26  2001/04/24 11:17:33  kowal2
  37 New TPC geometry.
  38
  39 Revision 1.25  2001/03/13 13:07:34  kowal2
  40 Corrected bug in the TPC mother volume geometry.
  41 Thanks to A. Morsch
  42
  43 Revision 1.24  2000/11/30 11:48:50  kowal2
  44 TLorentzVector.h adde to satisfy the latest changes by Federico
  45
  46 Revision 1.23  2000/11/14 10:48:57  kowal2
  47 Correct material used for TSA4. Thanks to J. Barbosa.
  48
  49 Revision 1.22  2000/11/06 17:24:10  kowal2
  50 Corrected bug in the outer containment vessel and
  51 the outer field cage geometry.
  52 Thanks to J. Barbosa.
  53
  54 Revision 1.21  2000/11/02 16:55:24  kowal2
  55 Corrected bug in the inner containment vessel geometry.
  56 Thanks to J. Belikov
  57
  58 Revision 1.20  2000/11/02 07:24:11  kowal2
  59 Correction in the TPC geometry.
  60 Changes due to the new hit structure.
  61
  62 Revision 1.19  2000/07/10 20:57:39  hristov
  63 Update of TPC code and macros by M.Kowalski
  64
  65 Revision 1.18  2000/06/30 12:07:50  kowal2
  66 Updated from the TPC-PreRelease branch
  67
  68 Revision 1.17.2.4  2000/06/26 07:39:42  kowal2
  69 Changes to obey the coding rules
  70
  71 Revision 1.17.2.3  2000/06/25 08:38:41  kowal2
  72 Splitted from AliTPCtracking
  73
  74 Revision 1.17.2.2  2000/06/16 12:58:13  kowal2
  75 Changed parameter settings
  76
  77 Revision 1.17.2.1  2000/06/09 07:15:07  kowal2
  78
  79 Defaults loaded automatically (hard-wired)
  80 Optional parameters can be set via macro called in the constructor
  81
  82 Revision 1.17  2000/05/15 10:00:30  kowal2
  83 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  84
  85 Revision 1.16  2000/04/17 09:37:33  kowal2
  86 removed obsolete AliTPCDigitsDisplay.C
  87
  88 Revision 1.15.8.2  2000/04/10 08:29:48  kowal2
  89
  90 Different pad geometry for different sectors
  91 Updated readouch chambers geometry
  92
  93 Revision 1.15.8.1  2000/04/10 07:56:53  kowal2
  94 Not used anymore - removed
  95
  96 Revision 1.15  1999/11/04 17:28:07  fca
  97 Correct barrel part of HV Degrader
  98
  99 Revision 1.14  1999/10/08 06:27:23  fca
 100 Corrected bug in the HV degrader geometry, thanks to G.Tabary
 101
 102 Revision 1.13  1999/10/04 13:39:54  fca
 103 Correct array index problem
 104
 105 Revision 1.12  1999/09/29 09:24:34  fca
 106 Introduction of the Copyright and cvs Log
 107
 108 */
 109
 110 //
 111 ///////////////////////////////////////////////////////////////////////////////
 112 //                                                                           //
 113 //  Time Projection Chamber version 1 -- detailed TPC and fast simulation    //
 114 //                                                                           //
 115 //Begin_Html
 116 /*
 117 <img src="picts/AliTPCv1Class.gif">
 118 */
 119 //End_Html
 120 //                                                                           //
 121 //                                                                           //
 122 ///////////////////////////////////////////////////////////////////////////////
 123
 124 #include <TMath.h>
 125 #include <TGeometry.h>
 126 #include <TNode.h>
 127 #include <TBRIK.h>
 128 #include <TTUBE.h>
 129 #include "AliTPCv1.h"
 130 #include "AliRun.h"
 131 #include <Riostream.h>
 132 #include <Riostream.h>
 133 #include "TLorentzVector.h"
 134
 135 #include "AliConst.h"
 136
 137 #include "AliTPCParam.h"
 138 #include "AliTPCParamSR.h"
 139 #include "AliTPCDigitsArray.h"
 140 #include <TInterpreter.h>
 141
 142 ClassImp(AliTPCv1)
 143
 144 //_____________________________________________________________________________
 145
 146   AliTPCv1::AliTPCv1(){
 147
 148   fHitType = 1;
 149
 150 }
 151
 152 //_____________________________________________________________________________
 153 AliTPCv1::AliTPCv1(const char *name, const char *title)
 154   :AliTPC(name, title) {
 155   //
 156   // Standard constructor for Time Projection Chamber
 157   //
 158   fIdSens=fIdLSec=fIdUSec=0;
 159
 160   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 161
 162   if (fTPCParam)
 163      fTPCParam->Write(fTPCParam->GetTitle());
 164
 165   fHitType=1;
 166 }
 167
 168 //_____________________________________________________________________________
 169 void AliTPCv1::CreateGeometry()
 170 {
 171   //-------------------------------------------------------------
 172   // Creates geometry for Time Projection Chamber version 1
 173   // Detailed geometry -- Fast simulation - space points
 174   // at the pad-rows centers
 175   // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
 176   //-----------------------------------------------------------
 177
 178   //Begin_Html
 179   /*
 180     <img src="picts/AliTPC.gif">
 181   */
 182   //End_Html
 183   //Begin_Html
 184   /*
 185     <img src="picts/AliTPCv1Tree.gif">
 186   */
 187   //End_Html
 188   Float_t dm[50];
 189
 190   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 191
 192   Int_t idrotm[120]; // rotation matrices
 193
 194   Int_t nRotMat = 0; // actual number of rotation matrices
 195
 196   //
 197   //  Mother volume TPC (Air) - all volumes will be positioned in it
 198   //
 199
 200   dm[0]=0.;
 201   dm[1]=360.;
 202   dm[2]=8.;
 203
 204   //
 205
 206   dm[3]=-283.7;
 207   dm[4]=65.6;
 208   dm[5]=278.;
 209
 210   //
 211
 212   dm[6]=-253.6;
 213   dm[7]=65.6;
 214   dm[8]=278.;
 215
 216   //
 217
 218   dm[9]=-73.3;
 219   dm[10]=60.9;
 220   dm[11]=278.;
 221
 222   //
 223
 224   dm[12]=-73.3;
 225   dm[13]=56.9;
 226   dm[14]=278.;
 227
 228   //
 229
 230   dm[15]=73.3;
 231   dm[16]=56.9;
 232   dm[17]=278.;
 233
 234   //
 235
 236   dm[18]=73.3;
 237   dm[19]=60.9;
 238   dm[20]=278.;
 239
 240   //
 241
 242   dm[21]=253.6;
 243   dm[22]=65.6;
 244   dm[23]=278.;
 245
 246   //
 247
 248   dm[24]=283.7;
 249   dm[25]=65.6;
 250   dm[26]=278.;
 251
 252   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27);
 253
 254   // outer part
 255
 256   //-------------------------------------------------------------------
 257   //   Tpc Outer INsulator (CO2) - contains cont. vessel and field cage
 258   //-------------------------------------------------------------------
 259
 260   dm[0]= 0.;
 261   dm[1]= 360.;
 262   dm[2]= 6.;
 263
 264   //
 265
 266   dm[3]=-253.6;
 267   dm[4]=258.;
 268   dm[5]=275.5;
 269
 270   //
 271
 272   dm[6]=-250.6;
 273   dm[7]=258.;
 274   dm[8]=275.5;
 275
 276   //
 277
 278   dm[9]=-250.6;
 279   dm[10]=258.;
 280   dm[11]=278.;
 281
 282   //
 283
 284   dm[12]=253.6;
 285   dm[13]=258.;
 286   dm[14]=278.;
 287
 288   //
 289
 290   dm[15]=253.6;
 291   dm[16]=264.8;
 292   dm[17]=278.;
 293
 294   //
 295
 296   dm[18]=256.6;
 297   dm[19]=264.8;
 298   dm[20]=278.;
 299
 300   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 301
 302   //----------------------------------------------------------------
 303   // Tpc Outer Contaiment Vessel
 304   //  mother volume - Al, daughters - composite (sandwich)
 305   //----------------------------------------------------------------
 306
 307   dm[0]=0.;
 308   dm[1]=360.;
 309   dm[2]=6.;
 310
 311   //
 312
 313   dm[3]=-250.6;
 314   dm[4]=270.4;
 315   dm[5]=278.;
 316
 317   //
 318
 319   dm[6]=-247.6;
 320   dm[7]=270.4;
 321   dm[8]=278.;
 322
 323   //
 324
 325   dm[9]=-247.6;
 326   dm[10]=274.8124;
 327   dm[11]=278.;
 328
 329   //
 330
 331   dm[12]=253.6;
 332   dm[13]=274.8124;
 333   dm[14]=278.;
 334
 335   //
 336
 337   dm[15]=253.6;
 338   dm[16]=264.8;
 339   dm[17]=278.;
 340
 341   //
 342
 343   dm[18]=256.6;
 344   dm[19]=264.8;
 345   dm[20]=278.;
 346
 347   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
 348
 349   // Daughter volumes - sandwich
 350
 351   // Tpc SAndwich 1 - Al
 352
 353   dm[0]=274.8124;
 354   dm[1]=278.;
 355   dm[2]=252.1;
 356
 357   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 358
 359   // Tpc SAndwich 2 - epoxy glue (I use Lexan)
 360
 361   dm[0] += 5.e-3;
 362   dm[1] -= 5.e-3;
 363
 364   gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3);
 365
 366   // Tpc SAndwich 3 - Tedlar
 367
 368   dm[0] += 0.01;
 369   dm[1] -= 0.01;
 370
 371   gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3);
 372
 373
 374   // Tpc SAndwich 4 - fiber glass (G10)
 375
 376   dm[0] += 3.8e-3;
 377   dm[1] -= 3.8e-3;
 378
 379   gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3);
 380
 381   // Tpc SAndwich 5 - NOMEX honeycomb
 382
 383   dm[0] += 0.075;
 384   dm[1] -= 0.075;
 385
 386   gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3);
 387
 388   // 5->4->3->2->1->TCOV
 389
 390
 391   gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY");
 392   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 393   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 394   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 395
 396   gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY");
 397
 398   // TCOV-> TOIN
 399
 400   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 401
 402   //-------------------------------------------------------
 403   //  Tpc Outer Field Cage
 404   //  mother volume - Al, daughters - composite (sandwich)
 405   //-------------------------------------------------------
 406
 407   dm[0]=0.;
 408   dm[1]=360.;
 409   dm[2]=6.;
 410
 411   //
 412
 413   dm[3]=-253.6;
 414   dm[4]=258.;
 415   dm[5]=275.5;
 416
 417   //
 418
 419   dm[6]=-250.6;
 420   dm[7]=258.;
 421   dm[8]=275.5;
 422
 423   //
 424
 425   dm[9]=-250.6;
 426   dm[10]=258.;
 427   dm[11]=260.0476;
 428
 429   //
 430
 431   dm[12]=250.6;
 432   dm[13]=258.;
 433   dm[14]=260.0476;
 434
 435   //
 436
 437   dm[15]=250.6;
 438   dm[16]=258.;
 439   dm[17]=269.6;
 440
 441   //
 442
 443   dm[18]=253.6;
 444   dm[19]=258.;
 445   dm[20]=269.6;
 446
 447   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 448
 449   // Daughter volumes
 450
 451   // Tpc SAndwich 6 - Tedlar
 452
 453   dm[0]= 258.;
 454   dm[1]= 260.0476;
 455   dm[2]= 252.1;
 456
 457   gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
 458
 459   // Tpc SAndwich 7 - fiber glass
 460
 461   dm[0] += 3.8e-3;
 462   dm[1] -= 3.8e-3;
 463
 464   gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3);
 465
 466
 467   // Tpc SAndwich 8 - NOMEX
 468
 469   dm[0] += 0.02;
 470   dm[1] -= 0.02;
 471
 472   gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
 473
 474   // 8->7->6->TOFC
 475
 476   gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
 477   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 478   gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY");
 479
 480   // TOFC->TOIN
 481
 482   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 483
 484   // TOIN->TPC
 485
 486   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 487
 488   // inner part
 489
 490   //--------------------------------------------------------------------
 491   // Tpc Inner INsulator (CO2) - inner f.c. will be placed there
 492   // Inner containment vessel will be placed directly in the TPC
 493   //--------------------------------------------------------------------
 494
 495   dm[0]=0.;
 496   dm[1]=360.;
 497   dm[2]=4.;
 498
 499   //
 500
 501   dm[3]=-253.6;
 502   dm[4]=65.9;
 503   dm[5]=79.2;
 504
 505   //
 506
 507   dm[6]=-73.3;
 508   dm[7]=61.2;
 509   dm[8]=79.2;
 510
 511   //
 512
 513   dm[9]=73.3;
 514   dm[10]=61.2;
 515   dm[11]=79.2;
 516
 517   //
 518
 519   dm[12]=253.6;
 520   dm[13]=65.9;
 521   dm[14]=79.2;
 522
 523   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15);
 524
 525   // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2
 526
 527   dm[0]=79.16;
 528   dm[1]=79.2;
 529   dm[2]=88.;
 530
 531   gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3);
 532
 533   gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY");
 534
 535   //-----------------------------------------------------
 536   // Tpc Inner Field Cage
 537   // mother volume - Al, daughters - composite (sandwich)
 538   //------------------------------------------------------
 539
 540   dm[0]=0.;
 541   dm[1]=360.;
 542   dm[2]=10.;
 543
 544   //
 545
 546   dm[3]=-253.6;
 547   dm[4]=70.3;
 548   dm[5]=79.2;
 549
 550   //
 551
 552   dm[6]=-250.6;
 553   dm[7]=70.3;
 554   dm[8]=79.2;
 555
 556   //
 557
 558   dm[9]=-250.6;
 559   dm[10]=77.0524;
 560   dm[11]=79.2;
 561
 562   //
 563
 564   dm[12]=-88.;
 565   dm[13]=77.0524;
 566   dm[14]=79.2;
 567
 568   //
 569
 570   dm[15]=-88.;
 571   dm[16]=77.0924;
 572   dm[17]=79.16;
 573
 574   //
 575
 576   dm[18]=88.;
 577   dm[19]=77.0924;
 578   dm[20]=79.16;
 579
 580   //
 581
 582   dm[21]=88.;
 583   dm[22]=77.0524;
 584   dm[23]=79.2;
 585
 586   //
 587
 588   dm[24]=250.6;
 589   dm[25]=77.0524;
 590   dm[26]=79.2;
 591
 592   //
 593
 594   dm[27]=250.6;
 595   dm[28]=70.3;
 596   dm[29]=79.2;
 597
 598   //
 599
 600   dm[30]=253.6;
 601   dm[31]=70.3;
 602   dm[32]=79.2;
 603
 604   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33);
 605
 606   // daughter volumes - central part
 607
 608   // Tpc Sandwich 9 -Tedlar
 609
 610   dm[0]=77.0924;
 611   dm[1]=79.16;
 612   dm[2]=88.;
 613
 614   gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3);
 615
 616   // Tpc Sandwich 10 - fiber glass (G10)
 617
 618   dm[0] += 3.8e-3;
 619   dm[1] -= 3.8e-3;
 620
 621   gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3);
 622
 623   // Tpc Sandwich 11 - NOMEX
 624
 625   dm[0] += 0.03;
 626   dm[1] -= 0.03;
 627
 628   gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3);
 629
 630   // 11->10->9->TIFC
 631
 632   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 633   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 634
 635   gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY");
 636
 637   // daughter volumes - outer parts (reinforced)
 638
 639   // Tpc Sandwich 12 -Tedlar
 640
 641   dm[0]=77.0524;
 642   dm[1]=79.2;
 643   dm[2]=82.05;
 644
 645   gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3);
 646
 647   // Tpc Sandwich 13 - fiber glass (G10)
 648
 649   dm[0] += 3.8e-3;
 650   dm[1] -= 3.8e-3;
 651
 652   gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3);
 653
 654   // Tpc Sandwich 14 - NOMEX
 655
 656   dm[0] += 0.07;
 657   dm[1] -= 0.07;
 658
 659   gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3);
 660
 661   // 14->13->12->TIFC
 662
 663   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 664   gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY");
 665
 666   gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY");
 667   gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY");
 668
 669   // place this inside the inner insulator
 670
 671   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 672
 673   // and now in the TPC...
 674
 675   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 676
 677   //---------------------------------------------------------
 678   // Tpc Inner Containment vessel - Cones
 679   //---------------------------------------------------------
 680
 681   dm[0]=0.;
 682   dm[1]=360.;
 683   dm[2]=8.;
 684
 685   //
 686
 687   dm[3]=71.8;
 688   dm[4]=56.9;
 689   dm[5]=59.4;
 690
 691   //
 692
 693   dm[6]=73.;
 694   dm[7]=56.9;
 695   dm[8]=59.4;
 696
 697   //
 698
 699   dm[9]=73.;
 700   dm[10]=56.9;
 701   dm[11]=61.2;
 702
 703   //
 704
 705   dm[12]=73.3;
 706   dm[13]=56.9;
 707   dm[14]=61.2;
 708
 709   //
 710
 711   dm[15]=73.3;
 712   dm[16]=60.9;
 713   dm[17]=61.2;
 714
 715   //
 716
 717   dm[18]=253.6;
 718   dm[19]=65.6;
 719   dm[20]=65.9;
 720
 721   //
 722
 723   dm[21]=253.6;
 724   dm[22]=65.6;
 725   dm[23]=74.6;
 726
 727   //
 728
 729   dm[24]=256.6;
 730   dm[25]=65.6;
 731   dm[26]=74.6;
 732
 733   gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27);
 734
 735   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
 736
 737   // reflection matrix
 738
 739   theta1 = 90.;
 740   phi1   = 0.;
 741   theta2 = 90.;
 742   phi2   = 270.;
 743   theta3 = 180.;
 744   phi3   = 0.;
 745
 746   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
 747
 748   gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY");
 749   gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 750
 751
 752   //---------------------------------------------------------
 753   // Tpc Inner Containment vessel - Middle part -Al
 754   //---------------------------------------------------------
 755
 756   dm[0]=0.;
 757   dm[1]=360.;
 758   dm[2]=6.;
 759
 760   //
 761
 762   dm[3]=-71.6;
 763   dm[4]=60.2;
 764   dm[5]=61.2;
 765
 766   //
 767
 768   dm[6]=-69.1;
 769   dm[7]=60.2;
 770   dm[8]=61.2;
 771
 772   //
 773
 774   dm[9]=-69.1;
 775   dm[10]=60.6224;
 776   dm[11]=61.2;
 777
 778   //
 779
 780   dm[12]=69.1;
 781   dm[13]=60.6224;
 782   dm[14]=61.2;
 783
 784   //
 785
 786   dm[15]=69.1;
 787   dm[16]=60.2;
 788   dm[17]=61.2;
 789
 790   //
 791
 792   dm[18]=71.6;
 793   dm[19]=60.2;
 794   dm[20]=61.2;
 795
 796   gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21);
 797
 798   // Tpc Sandwich 15 - Al
 799
 800   dm[0]=60.6224;
 801   dm[1]=61.2;
 802   dm[2]=70.1;
 803
 804   gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3);
 805
 806   // Tpc Sandwich 16 -  epoxy glue
 807
 808   dm[0] += 5.e-3;
 809   dm[1] -= 5.e-3;
 810
 811   gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3);
 812
 813   // Tpc Sandwich 17 - Tedlar
 814
 815   dm[0] += 0.01;
 816   dm[1] -= 0.01;
 817
 818   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
 819
 820   // Tpc Sandwich 18 - carbon fiber
 821
 822   dm[0] += 3.8e-3;
 823   dm[1] -= 3.8e-3;
 824
 825   gMC->Gsvolu("TS18","TUBE",idtmed[15],dm,3);
 826
 827   // Tpc Sandwich 19 - Nomex
 828
 829   dm[0] += 0.02;
 830   dm[1] -= 0.02;
 831
 832   gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
 833
 834   // 19->18->17->16->15-> TICM
 835
 836   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 837   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 838   gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY");
 839   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 840
 841   gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY");
 842
 843
 844   // TPc inner cont. vessel Joints
 845
 846   dm[0]=60.2;
 847   dm[1]=61.2;
 848   dm[2]=0.5;
 849
 850   gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3);
 851
 852   gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY");
 853   gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY");
 854
 855   //
 856
 857   dm[0]=0.;
 858   dm[1]=360.;
 859   dm[2]=4.;
 860
 861   //
 862
 863   dm[3]=70.8;
 864   dm[4]=58.4;
 865   dm[5]=60.1;
 866
 867   //
 868
 869   dm[6]=71.2;
 870   dm[7]=58.4;
 871   dm[8]=60.1;
 872
 873   //
 874
 875   dm[9]=71.2;
 876   dm[10]=58.4;
 877   dm[11]=59.4;
 878
 879   //
 880
 881   dm[12]=71.6;
 882   dm[13]=58.4;
 883   dm[14]=59.4;
 884
 885   gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15);
 886
 887   gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY");
 888   gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 889
 890
 891
 892   // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being)
 893
 894   dm[0]=58.4;
 895   dm[1]=61.2;
 896   dm[2]=0.1;
 897
 898   gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3);
 899
 900   gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY");
 901   gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY");
 902
 903   // TICM -> TPC
 904
 905   gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY");
 906
 907   //
 908
 909   nRotMat++; // prepare for the next rotation matrix
 910
 911   //---------------------------------------------------------
 912   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
 913   //  and its daughters (HV membrane, rods, readout chambers)
 914   //---------------------------------------------------------
 915
 916   dm[0]= 79.2;
 917   dm[1]= 258.0;
 918   dm[2]= 253.6;
 919
 920   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
 921
 922   // sector opening angles
 923
 924   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
 925   Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
 926
 927   // sector angle shift
 928
 929   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
 930
 931   // number of sectors
 932
 933   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
 934   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
 935
 936   // All above parameters are identical for inner and outer
 937   // sectors. The distinction is kept for the historical reasons
 938   // and eventually will disappear.
 939
 940   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
 941   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
 942   Float_t space;
 943
 944   //-------------------------------------------------------------------------
 945   //   Tpc Inner Readout Chambers
 946   //-------------------------------------------------------------------------
 947
 948   dm[0]= 14.483;
 949   dm[1]= 23.3345;
 950   dm[2]= 1.6; // thickness
 951   dm[3]= 25.1;
 952
 953   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
 954
 955   // this volume will be positioned in the empty space
 956   // of the end-cap to avoid overlaps
 957
 958   dm[0]= 13.7305;
 959   dm[1]= 21.1895;
 960   dm[2]= 2.25;
 961   dm[3]= 21.15;
 962
 963   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
 964
 965
 966   //------------------------------------------------
 967   // Tpc Inner readout chamber Pad Plane
 968   //------------------------------------------------
 969
 970   dm[0]= 14.483;
 971   dm[1]= 23.3345;
 972   dm[2]= 0.5;
 973   dm[3]= 25.1;
 974
 975   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
 976
 977   //
 978
 979   dm[0] -= 1.218511934;
 980   dm[1] -= 1.218511934;
 981   dm[2] = 0.35;
 982
 983   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
 984
 985   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
 986
 987   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
 988
 989
 990   //----------------------------------------------
 991   // Tpc Readout Chambers Empty spaces - for both
 992   // inner and outer sectors
 993   //----------------------------------------------
 994
 995   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
 996
 997   // Inner sector - 4 spaces
 998
 999
1000   dm[3] = 4.7625;
1001   dm[0] = 12.472;
1002
1003   Float_t rr = 90.52;
1004   Float_t zz;
1005
1006   zz= -12.7875;
1007
1008   space = rr*tanAlpha-dm[0];
1009
1010   for(Int_t nsLow=0;nsLow<4;nsLow++){
1011
1012     rr += 9.525;
1013     dm[1]= rr*tanAlpha - space;
1014
1015     dm[2]=0.8;
1016
1017     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1018
1019     //
1020
1021     dm[2] = 1.2;
1022
1023     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1024
1025     rr += 0.4;
1026     dm[0] = rr*tanAlpha - space;
1027     zz += (0.4+9.525);
1028
1029   }
1030
1031   dm[0]= 12.472;
1032   // dm[1] - this is the dm[1] from the previous TRCE
1033   dm[2]= 1.05;
1034   dm[3]= 19.65;
1035
1036   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1037
1038   //
1039   // TPc Space for Connectors
1040   //
1041
1042   dm[0]= .3;
1043   dm[1]= .3;
1044   dm[2]= 4.5;
1045
1046   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1047
1048   // TPC Connectors
1049
1050   dm[0]= .25;
1051   dm[1]= .15;
1052   dm[2]= 3.75;
1053
1054   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1055
1056   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1057
1058   zz = -12.7875;
1059
1060
1061   Float_t alpha;
1062   Float_t astep;
1063
1064   // inner part of the inner sector - 2 x 20 holes
1065
1066   astep = 20.00096874/19.;
1067
1068   alpha = 10.00048437-astep;
1069
1070   Float_t x1,x2;
1071
1072     x1 = 13.31175725;
1073     x1 -= 0.996357832;
1074
1075     x2 = 15.06180253;
1076     x2 -= 1.163028812;
1077
1078   Int_t ncon;
1079
1080   for(ncon=0;ncon<20;ncon++){
1081
1082     phi1 = 0.;
1083     theta1 = 90.+alpha;
1084     phi2=90.;
1085     theta2 = 90.;
1086     phi3 = (alpha>0) ? 0. : 180.;
1087     theta3 = TMath::Abs(alpha);
1088
1089     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1090
1091
1092
1093     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1094     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1095
1096
1097     x1 -= 1.296357833;
1098     x2 -= 1.463028812;
1099
1100     alpha -= astep;
1101     nRotMat++;
1102
1103   }
1104
1105   // outer part of the inner sector - 2 x 25 holes
1106
1107    astep = 20.00096874/24.;
1108    alpha = 10.00048437-astep;
1109
1110    x1 = 16.81184781;
1111    x1 -= 1.016295986;
1112
1113    x2 = 18.5618931;
1114    x2 -= 1.150914854;
1115
1116   for(ncon=0;ncon<25;ncon++){
1117
1118     phi1 = 0.;
1119     theta1 = 90.+alpha;
1120     phi2=90.;
1121     theta2 = 90.;
1122     phi3 = (alpha>0) ? 0. : 180.;
1123     theta3 = TMath::Abs(alpha);
1124
1125     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1126
1127
1128
1129     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1130     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1131
1132
1133     x1 -= 1.316295986;
1134     x2 -= 1.450914854;
1135
1136     alpha -= astep;
1137     nRotMat++;
1138
1139   }
1140
1141   //--------------------------------------------------------------------------
1142   //  TPC Outer Readout Chambers
1143   //  this is NOT a final design
1144   //--------------------------------------------------------------------------
1145
1146   dm[0]= 23.3875;
1147   dm[1]= 43.524;
1148   dm[2]= 1.5; //thickness
1149   dm[3]= 57.1;
1150
1151   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1152
1153   //------------------------------------------------
1154   // Tpc Outer readout chamber Pad Plane
1155   //------------------------------------------------
1156
1157   dm[2]= 0.5;
1158
1159   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1160
1161   dm[0] -= 1.218511934;
1162   dm[1] -= 1.218511934;
1163   dm[2] = 0.35;
1164
1165   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1166
1167   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1168
1169   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1170
1171   // empty space
1172
1173   dm[0]= 21.035;
1174   dm[1]= 38.7205;
1175   dm[2]= 0.7;
1176   dm[3]= 50.15;
1177
1178   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1179
1180   dm[0]= 22.2935;
1181   dm[1]= 40.5085;
1182   dm[2]= 2.25;
1183   dm[3]= 51.65;
1184
1185   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1186
1187   dm[0]= 21.35;
1188   dm[1]= 38.7205;
1189   dm[2]= 2.25;
1190   dm[3]= 50.15;
1191
1192   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1193
1194   //-----------------------------------------------
1195   // Tpc Services Support Wheel
1196   //-----------------------------------------------
1197
1198   dm[0]=0.;
1199   dm[1]=360.;
1200   dm[2]=18.;
1201   dm[3]=2.;
1202
1203   dm[4]= -5.;
1204   dm[5]= 77.017;
1205   dm[6]= 255.267;
1206
1207   dm[7]= 5.;
1208   dm[8]= dm[5];
1209   dm[9]= dm[6];
1210
1211   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1212
1213   // Tpc Services Wheel Cover
1214
1215   dm[4]= -0.5;
1216   dm[7]= 0.5;
1217
1218   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1219
1220   // Tpc Service wheel Cover Empty space
1221
1222   dm[0]= 10.99;
1223   dm[1]= 39.599;
1224   dm[2]= .5;
1225   dm[3]= 81.125;
1226
1227   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1228
1229   // Tpc services Wheel Empty Spaces
1230
1231   dm[0]= 13.18017507;
1232   dm[1]= 44.61045938;
1233   dm[2]= 4.;
1234   dm[3]= 89.125;
1235
1236   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1237
1238   // Tpc Services Wheel Bars
1239
1240   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1241
1242   // bars-> TWES
1243
1244   dm[2]= 4.;
1245   dm[3]= .4;
1246
1247   dm[0]= 13.8149522;
1248   dm[1]= 13.95601379;
1249
1250   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1251
1252   dm[0]= 43.83462067;
1253   dm[1]= 43.97568225;
1254
1255   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1256
1257   // TPc ELectronics - right now 30% X0 Si
1258
1259   dm[0]= 14.03813696;
1260   dm[1]= 43.3524075;
1261   dm[2]= 1.404;
1262   dm[3]= 83.125;
1263
1264   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1265   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1266
1267   //--------------------------------------------------------------------------
1268   //  End caps
1269   //--------------------------------------------------------------------------
1270
1271   // TPc Main Wheel - Al
1272
1273   dm[0]= 74.9;
1274   dm[1]= 264.4;
1275   dm[2]= 3.0;
1276
1277   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1278
1279   //--------------------------------------------------------------------------
1280   //  Tpc Empty Space for the Readout chambers
1281   //--------------------------------------------------------------------------
1282
1283   Float_t rLow= 86.2;
1284   Float_t rUp= 243.5;
1285   Float_t dR = 0.5*(rUp-rLow);
1286
1287   space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide
1288
1289   dm[0]= rLow*tanAlpha-space;
1290   dm[1]= rUp*tanAlpha-space;
1291   dm[2] = 3.0;
1292   dm[3]= dR;
1293
1294   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1295
1296   // TIC1->TESR
1297
1298   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1299
1300   // TOC1->TESR
1301
1302   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1303
1304   // Tpc Empty Space Bars - Al (daughters of TESR)
1305
1306   Float_t zBar;
1307
1308   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1309
1310   // lower bar
1311
1312   dm[0]= rLow*tanAlpha-space;
1313   dm[1]= 88.7*tanAlpha-space;
1314   dm[2]= 2.25;
1315   dm[3]= 1.275;
1316
1317   zBar = -dR+dm[3];
1318
1319   gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1320
1321   // middle bar
1322
1323   dm[0]= 131.65*tanAlpha-space;
1324   dm[1]= 136.5*tanAlpha-space;
1325   dm[3]= 2.425;
1326
1327   zBar = -dR +131.65+dm[3]-rLow;
1328
1329   gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1330
1331   // upper bar
1332
1333   dm[0]= 240.4*tanAlpha-space;
1334   dm[1]= rUp*tanAlpha-space;
1335   dm[3]= 1.55;
1336
1337   zBar = dR-dm[3];
1338
1339   gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1340
1341
1342   //------------------------------------------------------
1343   //  TPc Lower "S" Sectors
1344   //------------------------------------------------------
1345
1346   Float_t deadSpace;
1347
1348
1349   Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
1350   Float_t inSecUpEdge =  fTPCParam->GetInnerRadiusUp();
1351
1352   dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1353   dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1354   dm[2] = 0.5*(250. - 5.e-3);
1355   dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);
1356
1357   gMC->Gsvolu("TPLS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1358
1359   //----------------------------------------------------------
1360   //  TPc Upper Sectors
1361   //----------------------------------------------------------
1362
1363   Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
1364   Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
1365
1366   dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1367   dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1368   dm[2] = 0.5*(250. - 5.e-3);
1369   dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
1370
1371   gMC->Gsvolu("TPUS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1372
1373   //--------------------------------------------------------
1374   // TPc Sensitive Strips, the same for S and L sectors
1375   //--------------------------------------------------------
1376
1377   gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
1378
1379   Int_t nofStrips,nstr;
1380   Float_t r1,r2,zs;
1381   Float_t stripThick = 0.01; // 100 microns
1382
1383   // inner sector
1384
1385   nofStrips = fTPCParam->GetNRowLow();
1386   deadSpace = fTPCParam->GetInnerWireMount();
1387
1388   dm[2] = 0.5*(250. - 5.e-3);
1389   dm[3] = 0.5 * stripThick;
1390
1391   for(nstr=0;nstr<nofStrips;nstr++){
1392
1393     r1 = fTPCParam->GetPadRowRadiiLow(nstr);
1394     r2 = r1 + stripThick;
1395     dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1396     dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1397     zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
1398     zs += r1;
1399     zs += dm[3];
1400
1401     gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
1402
1403   }
1404
1405   Int_t nsSave = nofStrips;
1406
1407   // outer sector
1408
1409   nofStrips = fTPCParam->GetNRowUp();
1410   deadSpace = fTPCParam->GetOuterWireMount();
1411
1412   dm[2] = 0.5*(250. - 5.e-3);
1413   dm[3] = 0.5 * stripThick;
1414
1415    for(nstr=0;nstr<nofStrips;nstr++){
1416
1417     r1 = fTPCParam->GetPadRowRadiiUp(nstr);
1418     r2 = r1 + stripThick;
1419     dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1420     dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1421     zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
1422     zs += r1;
1423     zs += dm[3];
1424
1425     gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
1426
1427    }
1428
1429   //-------------------------------------------------------
1430   //  positioning of the empty spaces into the main wheel
1431   //  and readout chambers and sectors into the drift gas
1432   //-------------------------------------------------------
1433
1434
1435   Float_t rCenter,xc,yc;
1436   Float_t rInner,rOuter; // center of the inner and outer chamber
1437
1438   rCenter = rLow+dR;
1439
1440   rInner = 108.07;
1441   rOuter = 190.68;
1442
1443
1444   for(Int_t ns=0; ns<nInnerSector;ns++){
1445
1446     phi1 = ns * innerOpenAngle + innerAngleShift;
1447     phi1 *= kRaddeg; // in degrees
1448
1449     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1450
1451     if (phi1 > 360.) phi1 -= 360.;
1452
1453     theta1 = 90.;
1454     phi2   = 90.;
1455     theta2 = 180.;
1456     phi3   = ns * innerOpenAngle + innerAngleShift;
1457     phi3 *= kRaddeg; // in degrees
1458
1459     phi3 = (Float_t)TMath::Nint(phi3);
1460
1461     if(phi3 > 360.) phi3 -= 360.;
1462
1463     theta3 = 90.;
1464
1465     // "holes"->End plate
1466
1467     xc = rCenter*TMath::Cos(phi3*kDegrad);
1468     yc = rCenter*TMath::Sin(phi3*kDegrad);
1469
1470     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1471
1472     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1473
1474     // TSCE->TSWC (services wheel volumes)
1475
1476     xc = 166.142*TMath::Cos(phi3*kDegrad);
1477     yc = 166.142*TMath::Sin(phi3*kDegrad);
1478
1479     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1480     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1481
1482
1483     // readout chambers->TDGN (drift gas)
1484
1485     xc = rInner*TMath::Cos(phi3*kDegrad);
1486     yc = rInner*TMath::Sin(phi3*kDegrad);
1487
1488     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1489
1490     // here lower sectors
1491
1492     gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY");
1493     gMC->Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY");
1494
1495
1496
1497     xc = rOuter*TMath::Cos(phi3*kDegrad);
1498     yc = rOuter*TMath::Sin(phi3*kDegrad);
1499
1500     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1501
1502     // here upper sectors
1503
1504     gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY");
1505     gMC->Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY");
1506
1507
1508     nRotMat++;
1509
1510     theta2 = 0.; // reflection
1511
1512     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1513
1514     xc = rInner*TMath::Cos(phi3*kDegrad);
1515     yc = rInner*TMath::Sin(phi3*kDegrad);
1516
1517     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1518
1519     xc = rOuter*TMath::Cos(phi3*kDegrad);
1520     yc = rOuter*TMath::Sin(phi3*kDegrad);
1521
1522     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1523
1524     nRotMat++;
1525
1526   }
1527   // TPMW->TPC
1528
1529   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1530   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY");
1531
1532   //---------------------------------------------------------
1533   //  Tpc High Voltage Membrane - 100 microns of mylar
1534   //---------------------------------------------------------
1535
1536   dm[0]=82.8;
1537   dm[1]=252.;
1538   dm[2]=0.005;
1539
1540   gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3);
1541
1542   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1543
1544   // Tpc High Voltage membrane Holders
1545
1546   gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0);
1547
1548
1549
1550   // inner
1551
1552   dm[0]=79.3;
1553   dm[1]=82.8;
1554   dm[2]=0.2;
1555
1556   gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1557
1558   // outer
1559
1560   dm[0]= 252.;
1561   dm[1]= 257.9;
1562   dm[2]= 0.4;
1563
1564   gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1565
1566   //----------------------------------------------------------
1567   // TPc Support Rods - MAKROLON
1568   //----------------------------------------------------------
1569
1570   dm[0]= 0.9;
1571   dm[1]= 1.2;
1572
1573   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ
1574
1575
1576   for(Int_t nrod=0;nrod<18;nrod++){
1577     Float_t angle=innerOpenAngle*(Float_t)nrod;
1578
1579     xc=81.5*TMath::Cos(angle);
1580     yc=81.5*TMath::Sin(angle);
1581
1582     dm[2]=126.7;
1583
1584     gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3);
1585     gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3);
1586
1587     dm[2]=126.6;
1588
1589     xc=254.25*TMath::Cos(angle);
1590     yc=254.25*TMath::Sin(angle);
1591
1592     // rod number 54 contans the HV cable
1593
1594     if(nrod<17) {
1595       gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3);
1596       gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3);
1597     }
1598
1599   }
1600
1601   //----------------------------------------------------------
1602   // Tpc High Voltage Rod - MAKROLON + Copper cable
1603   //----------------------------------------------------------
1604
1605   // rod with cable (Left)
1606
1607   dm[0]=0.;
1608   dm[1]=2.25;
1609   dm[2]=126.6;
1610
1611   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1612
1613   // HV cable
1614
1615   dm[0]=0.;
1616   dm[1]=0.3;
1617   dm[2]=126.6;
1618
1619   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1620
1621   // empty space
1622
1623   dm[0]=0.3;
1624   dm[1]=1.;
1625   dm[2]=126.6;
1626
1627   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1628
1629   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1630   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1631
1632   // rod without cable
1633
1634   dm[0]=1.8;
1635   dm[1]=2.25;
1636   dm[2]=126.6;
1637
1638   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1639
1640   gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY");
1641   gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY");
1642
1643   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1644
1645   // services wheel cover -> wheel
1646
1647
1648   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1649   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1650
1651
1652   // put the wheel into the TPC
1653
1654   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1655   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1656
1657   //
1658
1659   gMC->Gsord("TPMW",6);
1660   gMC->Gsord("TSSW",6);
1661   gMC->Gsord("TSWC",6);
1662   gMC->Gsord("TPLS",3);
1663   gMC->Gsord("TPUS",3);
1664   gMC->Gsord("TDGN",6);
1665
1666
1667   // put the TPC into ALIC (main mother volume)
1668
1669   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1670
1671
1672
1673 } // end of function
1674
1675 //_____________________________________________________________________________
1676 void AliTPCv1::DrawDetector()
1677 {
1678   //
1679   // Draw a shaded view of the Time Projection Chamber version 1
1680   //
1681
1682   // Set everything unseen
1683   gMC->Gsatt("*", "seen", -1);
1684   //
1685   // Set ALIC mother transparent
1686   gMC->Gsatt("ALIC","SEEN",0);
1687   //
1688   // Set the volumes visible
1689   gMC->Gsatt("TPC ","SEEN",0);
1690   gMC->Gsatt("TOIN","SEEN",1);
1691   gMC->Gsatt("TOIN","COLO",7);
1692   gMC->Gsatt("TOCV","SEEN",1);
1693   gMC->Gsatt("TOCV","COLO",4);
1694   gMC->Gsatt("TSA1","SEEN",0);
1695   gMC->Gsatt("TSA2","SEEN",0);
1696   gMC->Gsatt("TSA3","SEEN",0);
1697   gMC->Gsatt("TSA4","SEEN",0);
1698   gMC->Gsatt("TSA5","SEEN",0);
1699   gMC->Gsatt("TOFC","SEEN",1);
1700   gMC->Gsatt("TOFC","COLO",4);
1701   gMC->Gsatt("TSA6","SEEN",0);
1702   gMC->Gsatt("TSA7","SEEN",0);
1703   gMC->Gsatt("TSA8","SEEN",0);
1704   gMC->Gsatt("TIIN","SEEN",1);
1705   gMC->Gsatt("TIIN","COLO",7);
1706   gMC->Gsatt("TII1","SEEN",0);
1707   gMC->Gsatt("TIFC","SEEN",1);
1708   gMC->Gsatt("TIFC","COLO",4);
1709   gMC->Gsatt("TSA9","SEEN",0);
1710   gMC->Gsatt("TS10","SEEN",0);
1711   gMC->Gsatt("TS11","SEEN",0);
1712   gMC->Gsatt("TS12","SEEN",0);
1713   gMC->Gsatt("TS13","SEEN",0);
1714   gMC->Gsatt("TS14","SEEN",0);
1715   gMC->Gsatt("TICC","SEEN",0);
1716   gMC->Gsatt("TICM","SEEN",0);
1717   gMC->Gsatt("TS15","SEEN",0);
1718   gMC->Gsatt("TS16","SEEN",0);
1719   gMC->Gsatt("TS17","SEEN",0);
1720   gMC->Gsatt("TS18","SEEN",0);
1721   gMC->Gsatt("TS19","SEEN",0);
1722   gMC->Gsatt("TPJ1","SEEN",0);
1723   gMC->Gsatt("TPJ2","SEEN",0);
1724   gMC->Gsatt("TICS","SEEN",0);
1725   gMC->Gsatt("TDGN","SEEN",0);
1726   gMC->Gsatt("TIRC","SEEN",0);
1727   gMC->Gsatt("TIC1","SEEN",1);
1728   gMC->Gsatt("TIPP","SEEN",0);
1729   gMC->Gsatt("TIC3","SEEN",0);
1730   gMC->Gsatt("TRCE","SEEN",0);
1731   gMC->Gsatt("TPSC","SEEN",0);
1732   gMC->Gsatt("TPCC","SEEN",0);
1733   gMC->Gsatt("TORC","SEEN",0);
1734   gMC->Gsatt("TOPP","SEEN",0);
1735   gMC->Gsatt("TOC3","SEEN",0);
1736   gMC->Gsatt("TOC1","SEEN",1);
1737   gMC->Gsatt("TSSW","SEEN",1);
1738   gMC->Gsatt("TSWC","SEEN",1);
1739   gMC->Gsatt("TSSW","COLO",3);
1740   gMC->Gsatt("TSWC","COLO",3);
1741   gMC->Gsatt("TSCE","COLO",6);
1742   gMC->Gsatt("TSCE","SEEN",1);
1743   gMC->Gsatt("TWES","SEEN",0);
1744   gMC->Gsatt("TSWB","SEEN",0);
1745   gMC->Gsatt("TPEL","SEEN",0);
1746   gMC->Gsatt("TPMW","SEEN",1);
1747   gMC->Gsatt("TESR","SEEN",1);
1748   gMC->Gsatt("TPMW","COLO",12);
1749   gMC->Gsatt("TIC1","COLO",5);
1750   gMC->Gsatt("TOC1","COLO",5);
1751   gMC->Gsatt("TESB","SEEN",0);
1752   gMC->Gsatt("THVM","SEEN",1);
1753   gMC->Gsatt("THVM","COLO",11);
1754   gMC->Gsatt("THVH","SEEN",0);
1755   gMC->Gsatt("TPSR","SEEN",0);
1756   gMC->Gsatt("THVL","SEEN",0);
1757   gMC->Gsatt("THVC","SEEN",0);
1758   gMC->Gsatt("THVE","SEEN",0);
1759   gMC->Gsatt("THVR","SEEN",0);
1760   gMC->Gsatt("TPSS","SEEN",0);
1761   gMC->Gsatt("TPUS","SEEN",0);
1762   gMC->Gsatt("TPLS","SEEN",0);
1763
1764   //
1765   gMC->Gdopt("hide", "on");
1766   gMC->Gdopt("shad", "on");
1767   gMC->Gsatt("*", "fill", 7);
1768   gMC->SetClipBox(".");
1769   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1770   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1771   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1772   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1773   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1774   gMC->DefaultRange();
1775   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1776   gMC->Gdhead(1111, "Time Projection Chamber");
1777   gMC->Gdman(18, 4, "MAN");
1778   gMC->Gdopt("hide","off");
1779 }
1780
1781 //_____________________________________________________________________________
1782 void AliTPCv1::CreateMaterials()
1783 {
1784   //
1785   // Define materials for Time Projection Chamber
1786   //
1787   AliTPC::CreateMaterials();
1788 }
1789
1790 //_____________________________________________________________________________
1791 void AliTPCv1::Init()
1792 {
1793   //
1794   // Initialises TPC detector after it has been created
1795   //
1796
1797   fIdSens=gMC->VolId("TPSS"); // sensitive strip
1798   fIdLSec=gMC->VolId("TPLS"); // lower sector
1799   fIdUSec=gMC->VolId("TPUS"); // upper sector
1800
1801   printf("%s: *** TPC version 1 initialized***\n",ClassName());
1802
1803   // printf("TPC version 1 initialized\n");
1804 }
1805
1806 //_____________________________________________________________________________
1807 void AliTPCv1::StepManager()
1808 {
1809   //
1810   // Called at every step in the Time Projection Chamber
1811   //
1812   Int_t         copy, id, i;
1813   Float_t       hits[4];
1814   Int_t         vol[2];
1815   TLorentzVector p;
1816  //
1817
1818   if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1819
1820     //
1821     // Only charged tracks entering the sensitive volume
1822     //
1823
1824     id = gMC->CurrentVolID(copy);
1825
1826     if(id == fIdSens){
1827
1828       // sensitive volume (strip)
1829
1830       vol[1]= copy-1; // row number (absolute)
1831
1832       // sector type
1833
1834       id = gMC->CurrentVolOffID(1,copy);
1835
1836       if(id == fIdLSec){
1837
1838         // lower sector
1839
1840         vol[0] = copy-1; // sector number
1841
1842       }
1843       else {
1844
1845         // upper sector
1846
1847         vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
1848         vol[1] -= fTPCParam->GetNRowLow(); // row number
1849
1850       }
1851
1852       if(vol[1] == 0){
1853
1854         // because Jouri wants to have this
1855
1856         gMC->TrackMomentum(p);
1857         hits[0]=p[0];
1858         hits[1]=p[1];
1859         hits[2]=p[2];
1860         hits[3]=0.; // this hit has no energy loss
1861         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1862
1863         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1864
1865         gMC->TrackPosition(p);
1866         hits[0]=p[0];
1867         hits[1]=p[1];
1868         hits[2]=p[2];
1869         hits[3]=0.; // this hit has no energy loss
1870         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1871
1872         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1873
1874       }
1875
1876       gMC->TrackPosition(p);
1877       for(i=0;i<3;++i) hits[i]=p[i];
1878       hits[3]=1; //I'd like to have something positive here (I.Belikov)
1879       // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1880
1881       AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1882
1883     }
1884
1885   }
1886
1887 }
1888 //_____________________________________________________________________________
1889
1890
1891