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