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 1.21  2000/11/02 16:55:24  kowal2
  19 Corrected bug in the inner containment vessel geometry.
  20 Thanks to J. Belikov
  21
  22 Revision 1.20  2000/11/02 07:24:11  kowal2
  23 Correction in the TPC geometry.
  24 Changes due to the new hit structure.
  25
  26 Revision 1.19  2000/07/10 20:57:39  hristov
  27 Update of TPC code and macros by M.Kowalski
  28
  29 Revision 1.18  2000/06/30 12:07:50  kowal2
  30 Updated from the TPC-PreRelease branch
  31
  32 Revision 1.17.2.4  2000/06/26 07:39:42  kowal2
  33 Changes to obey the coding rules
  34
  35 Revision 1.17.2.3  2000/06/25 08:38:41  kowal2
  36 Splitted from AliTPCtracking
  37
  38 Revision 1.17.2.2  2000/06/16 12:58:13  kowal2
  39 Changed parameter settings
  40
  41 Revision 1.17.2.1  2000/06/09 07:15:07  kowal2
  42
  43 Defaults loaded automatically (hard-wired)
  44 Optional parameters can be set via macro called in the constructor
  45
  46 Revision 1.17  2000/05/15 10:00:30  kowal2
  47 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  48
  49 Revision 1.16  2000/04/17 09:37:33  kowal2
  50 removed obsolete AliTPCDigitsDisplay.C
  51
  52 Revision 1.15.8.2  2000/04/10 08:29:48  kowal2
  53
  54 Different pad geometry for different sectors
  55 Updated readouch chambers geometry
  56
  57 Revision 1.15.8.1  2000/04/10 07:56:53  kowal2
  58 Not used anymore - removed
  59
  60 Revision 1.15  1999/11/04 17:28:07  fca
  61 Correct barrel part of HV Degrader
  62
  63 Revision 1.14  1999/10/08 06:27:23  fca
  64 Corrected bug in the HV degrader geometry, thanks to G.Tabary
  65
  66 Revision 1.13  1999/10/04 13:39:54  fca
  67 Correct array index problem
  68
  69 Revision 1.12  1999/09/29 09:24:34  fca
  70 Introduction of the Copyright and cvs Log
  71
  72 */
  73
  74 //
  75 ///////////////////////////////////////////////////////////////////////////////
  76 //                                                                           //
  77 //  Time Projection Chamber version 1 -- detailed TPC and fast simulation    //
  78 //                                                                           //
  79 //Begin_Html
  80 /*
  81 <img src="picts/AliTPCv1Class.gif">
  82 */
  83 //End_Html
  84 //                                                                           //
  85 //                                                                           //
  86 ///////////////////////////////////////////////////////////////////////////////
  87
  88 #include <TMath.h>
  89 #include <TGeometry.h>
  90 #include <TNode.h>
  91 #include <TBRIK.h>
  92 #include <TTUBE.h>
  93 #include "AliTPCv1.h"
  94 #include "AliRun.h"
  95 #include <iostream.h>
  96 #include <fstream.h>
  97
  98 #include "AliMC.h"
  99 #include "AliConst.h"
 100
 101 #include "AliTPCParam.h"
 102 #include "AliTPCParamSR.h"
 103 #include "AliTPCDigitsArray.h"
 104 #include <TInterpreter.h>
 105
 106 ClassImp(AliTPCv1)
 107
 108 //_____________________________________________________________________________
 109
 110   AliTPCv1::AliTPCv1(){
 111
 112   fHitType = 1;
 113
 114 }
 115
 116 //_____________________________________________________________________________
 117 AliTPCv1::AliTPCv1(const char *name, const char *title)
 118   :AliTPC(name, title) {
 119   //
 120   // Standard constructor for Time Projection Chamber
 121   //
 122   fIdSens=fIdLSec=fIdUSec=0;
 123
 124   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 125
 126   if (fTPCParam)
 127      fTPCParam->Write(fTPCParam->GetTitle());
 128
 129   fHitType=1;
 130 }
 131
 132 //_____________________________________________________________________________
 133 void AliTPCv1::CreateGeometry()
 134 {
 135   //-------------------------------------------------------------
 136   // Creates geometry for Time Projection Chamber version 1
 137   // Detailed geometry -- Fast simulation - space points
 138   // at the pad-rows centers
 139   // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
 140   //-----------------------------------------------------------
 141
 142   //Begin_Html
 143   /*
 144     <img src="picts/AliTPC.gif">
 145   */
 146   //End_Html
 147   //Begin_Html
 148   /*
 149     <img src="picts/AliTPCv1Tree.gif">
 150   */
 151   //End_Html
 152   Float_t dm[50];
 153
 154   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 155
 156   Int_t idrotm[120]; // rotation matrices
 157
 158   Int_t nRotMat = 0; // actual number of rotation matrices
 159
 160
 161   //
 162   //  Mother volume (Air) - all volumes will be positioned in it
 163   //
 164
 165   dm[0]=0.;
 166   dm[1]=360.;
 167   dm[2]=12.;
 168
 169   //
 170
 171   dm[3]= -283.7;
 172   dm[4]= 66.2;
 173   dm[5]= 277.95;
 174
 175   //
 176
 177   dm[6]= -255.6;
 178   dm[7]= 66.2;
 179   dm[8]= 277.95;
 180
 181   //
 182
 183   dm[9]= -73.3;
 184   dm[10]= 59.0;
 185   dm[11]= 277.95;
 186
 187   //
 188
 189   dm[12]= -73.3;
 190   dm[13]= 56.9;
 191   dm[14]= 277.95;
 192
 193   //
 194
 195   dm[15]= -72.1;
 196   dm[16]= 56.9;
 197   dm[17]= 277.95;
 198
 199   //
 200
 201   dm[18]= -72.1;
 202   dm[19]= 60.65;
 203   dm[20]= 277.95;
 204
 205   //
 206
 207   dm[21]= 72.1;
 208   dm[22]= 60.65;
 209   dm[23]= 277.95;
 210
 211   //
 212
 213   dm[24]= 72.1;
 214   dm[25]= 56.9;
 215   dm[26]= 277.95;
 216
 217   //
 218
 219   dm[27]= 73.3;
 220   dm[28]= 56.9;
 221   dm[29]= 277.95;
 222
 223   //
 224
 225   dm[30]= 73.3;
 226   dm[31]= 60.65;
 227   dm[32]= 277.95;
 228
 229   //
 230
 231   dm[33]= 250.4;
 232   dm[34]= 66.0;
 233   dm[35]= 277.95;
 234
 235   //
 236
 237   dm[36]= 283.7;
 238   dm[37]= 66.0;
 239   dm[38]= 277.95;
 240
 241
 242   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
 243
 244
 245   //-------------------------------------------------------------------
 246   //  Tpc Outer INsulator (CO2)
 247   //-------------------------------------------------------------------
 248
 249   dm[0]= 0.;
 250   dm[1]= 360.;
 251   dm[2]= 6.;
 252
 253   //
 254
 255   dm[3]= -253.6;
 256   dm[4]= 258.;
 257   dm[5]= 266.65;
 258
 259   //
 260
 261   dm[6]= -253.;
 262   dm[7]= 258.;
 263   dm[8]= 266.65;
 264
 265   dm[9]= -253.;
 266   dm[10]= 258.;
 267   dm[11]= 277.97;
 268
 269   dm[12]= 253.6;
 270   dm[13]= 258.;
 271   dm[14]= 277.97;
 272
 273   //
 274
 275   dm[15]= 253.6;
 276   dm[16]= 265.2;
 277   dm[17]= 277.95;
 278
 279   //
 280
 281   dm[18]= 255.6;
 282   dm[19]= 265.2;
 283   dm[20]= 277.95;
 284
 285
 286   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 287
 288   //---------------------------------------------------------------
 289   // shreds (G10) - TPC Rings
 290   //---------------------------------------------------------------
 291
 292   gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
 293
 294   dm[0]= 258.;
 295   dm[1]= 266.65;
 296   dm[2]= 0.3;
 297
 298   gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
 299
 300   //
 301
 302   dm[0]= 258.;
 303   dm[1]= 270.9;
 304   dm[2]= 0.3;
 305
 306   gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
 307
 308   //
 309
 310   dm[0]= 272.2;
 311   dm[1]= 277.95;
 312   dm[2]= 0.3;
 313
 314   gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
 315
 316   //----------------------------------------------------------------
 317   // Tpc Outer Contaiment Vessel
 318   //  mother volume - Al, daughters - composite (sandwich)
 319   //----------------------------------------------------------------
 320
 321   dm[0]= 0.;
 322   dm[1]= 360.;
 323   dm[2]=6.;
 324
 325   //
 326
 327   dm[3]= -250.4;
 328   dm[4]= 272.2;
 329   dm[5]= 277.95;
 330
 331   //
 332
 333   dm[6]= -248.4;
 334   dm[7]= 272.2;
 335   dm[8]= 277.95;
 336
 337   //
 338   dm[9]= -248.4;
 339   dm[10]= 274.81;
 340   dm[11]= 277.95;
 341
 342   //
 343
 344   dm[12]= 253.6;
 345   dm[13]= 274.81;
 346   dm[14]= 277.95;
 347
 348   //
 349
 350   dm[15]= 253.6;
 351   dm[16]= 265.2;
 352   dm[17]= 277.95;
 353
 354   //
 355
 356   dm[18]= 255.6;
 357   dm[19]= 265.2;
 358   dm[20]= 277.95;
 359
 360   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
 361
 362   // Daughter volumes
 363
 364   // Tpc SAndwich 1 - Al
 365
 366   dm[0]= 274.81;
 367   dm[1]= 277.95;
 368   dm[2]= 251.7;
 369
 370   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 371
 372   // Tpc SAndwich 2 - Tedlar
 373
 374   dm[0] += 5.e-3;
 375   dm[1] -= 5.e-3;
 376
 377   gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
 378
 379   // Tpc SAndwich 3 - Kevlar
 380
 381   dm[0] += 5e-3;
 382   dm[1] -= 5.e-3;
 383
 384   gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
 385
 386   // Tpc SAndwich 4 - NOMEX honeycomb
 387
 388   dm[0] += 0.06;
 389   dm[1] -= 0.06;
 390
 391   gMC->Gsvolu("TSA4","TUBE",idtmed[5],dm,3);
 392
 393   // 4->3->2->1->TOCV
 394
 395   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 396   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 397   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 398
 399   gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
 400
 401   // TCOV-> TOIN
 402
 403   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 404
 405   //-------------------------------------------------------
 406   //  Tpc Outer Field Cage
 407   //  mother volume - Al, daughters - composite (sandwich)
 408   //-------------------------------------------------------
 409
 410   dm[0]=0.;
 411   dm[1]=360.;
 412   dm[2]=6.;
 413
 414   dm[3]= -253.;
 415   dm[4]= 258.;
 416   dm[5]= 277.95;
 417
 418   //
 419
 420   dm[6]= -251.;
 421   dm[7]= 258.;
 422   dm[8]= 277.95;
 423
 424   //
 425
 426   dm[9]= -251.;
 427   dm[10]= 258.;
 428   dm[11]= 260.05;
 429
 430   //
 431
 432   dm[12]= 251.;
 433   dm[13]= 258.;
 434   dm[14]= 260.05;
 435
 436   //
 437
 438   dm[15]= 251.;
 439   dm[16]= 258.;
 440   dm[17]= 270.9;
 441
 442   //
 443
 444   dm[18]= 253.;
 445   dm[19]= 258.;
 446   dm[20]= 270.9;
 447
 448   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 449
 450   // Daughter volumes
 451
 452   // Tpc SAndwich 5 - Tedlar
 453
 454   dm[0]= 258.;
 455   dm[1]= 260.05;
 456   dm[2]= 251.7;
 457
 458   gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3);
 459
 460   // Tpc SAndwich 6 - Kevlar
 461
 462   dm[0] += 5.e-3;
 463   dm[1] -= 5.e-3;
 464
 465   gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3);
 466
 467
 468   // Tpc SAndwich 7 - NOMEX
 469
 470   dm[0] += 0.02;
 471   dm[1] -= 0.02;
 472
 473   gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3);
 474
 475   // 7->6->5->TOFC
 476
 477   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 478   gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY");
 479
 480   gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
 481
 482   // TOFC->TOIN
 483
 484   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 485
 486   // TOIN->TPC
 487
 488   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 489
 490   //--------------------------------------------------------------------
 491   // Tpc Inner INsulator (CO2)
 492   //--------------------------------------------------------------------
 493
 494
 495   dm[0]=0.;
 496   dm[1]= 360.;
 497   dm[2]= 15.;
 498
 499   //
 500
 501   dm[3]= -255.6;
 502   dm[4]= 66.2;
 503   dm[5]= 74.8;
 504
 505   //
 506
 507   Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
 508
 509   dm[6]= -253.6;
 510   dm[7]= 59.0+ (253.6-73.3)*tanL;
 511   dm[8]= 74.8;
 512
 513   //
 514
 515   dm[9]= -253.6;
 516   dm[10]= dm[7];
 517   dm[11]= 79.2;
 518
 519   //
 520
 521   dm[12]= -73.3;
 522   dm[13]= 59.0;
 523   dm[14]= 79.2;
 524
 525   //
 526
 527   dm[15]= -73.3;
 528   dm[16]= 56.9;
 529   dm[17]= 79.2;
 530
 531   //
 532
 533   dm[18]= -72.1;
 534   dm[19]= 59.6;
 535   dm[20]= 79.2;
 536
 537   //
 538
 539   dm[21]= -72.1;
 540   dm[22]= 60.65;
 541   dm[23]= 79.2;
 542
 543   //
 544
 545   dm[24]= 72.1;
 546   dm[25]= 60.65;
 547   dm[26]= 79.2;
 548
 549   //
 550
 551   dm[27]= 72.1;
 552   dm[28]= 59.6;
 553   dm[29]= 79.2;
 554
 555   //
 556
 557   dm[30]= 73.3;
 558   dm[31]= 56.9;
 559   dm[32]= 79.2;
 560
 561   //
 562
 563   dm[33]= 73.3;
 564   dm[34]= 59.0;
 565   dm[35]= 79.2;
 566
 567   //
 568
 569   dm[36]= 250.4;
 570   dm[37]= 66.0;
 571   dm[38]= 79.2;
 572
 573   //
 574
 575   dm[39]= 253.0;
 576   dm[40]= 66.0;
 577   dm[41]= 79.2;
 578
 579   //
 580
 581   dm[42]= 253.0;
 582   dm[43]= 75.3;
 583   dm[44]= 79.2;
 584
 585   //
 586
 587   dm[45]= 253.6;
 588   dm[46]= 75.3;
 589   dm[47]= 79.2;
 590
 591   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
 592
 593
 594   //--------------------------------------------------------------------
 595   //  Tpc Inner Containment vessel, Left part
 596   //  mother volume - Al, daughter - composite (sandwich)
 597   //--------------------------------------------------------------------
 598
 599   dm[0]= 0.;
 600   dm[1]= 360.;
 601   dm[2]= 8.;
 602
 603   //
 604
 605   dm[3]= -255.6;
 606   dm[4]= 66.2;
 607   dm[5]= 74.8;
 608
 609   //
 610
 611   Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
 612   Float_t sandThick = 2.14; // cone composite thickness
 613
 614
 615   //
 616
 617   dm[6]= -253.6;
 618   dm[7]= 59.0 + (253.6-73.3)*tanL;
 619   dm[8]= 74.8;
 620
 621   //
 622
 623   dm[9]= -253.6;
 624   dm[10]= dm[7];
 625   dm[11]= dm[7]+sandThick/cosL;
 626
 627   //
 628
 629   dm[12]= -75.6;
 630   dm[13]= 59.0+(75.6-73.3)*tanL;
 631   dm[14]= dm[13]+sandThick/cosL;
 632
 633   //
 634
 635   dm[15]= -75.6;
 636   dm[16]= dm[13];
 637   dm[17]= 60.65;
 638
 639   //
 640
 641   dm[18]= -73.3;
 642   dm[19]= 59.0;
 643   dm[20]= 60.65;
 644
 645   //
 646
 647   dm[21]= -73.3;
 648   dm[22]= 56.9;
 649   dm[23]= 60.65;
 650
 651   //
 652
 653   dm[24]= -72.1;
 654   dm[25]= 56.9;
 655   dm[26]= 60.65;
 656
 657   gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
 658
 659   // Daughter volumes
 660
 661   // Tpc SAndwich 9 - Al
 662
 663   dm[0]= 0.;
 664   dm[1]= 360.;
 665   dm[2]= 2.;
 666
 667   //
 668
 669   dm[3]= - 254.3;
 670   dm[4]= 59.0+(254.3-73.3)*tanL;
 671   dm[5]= dm[4]+sandThick/cosL;
 672
 673   //
 674
 675   dm[6]= -78.3;
 676   dm[7]= 59.0+(78.3-73.3)*tanL;
 677   dm[8]= dm[7]+sandThick/cosL;
 678
 679   //
 680
 681   gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
 682
 683   // Tpc SAndwich 10 - Tedlar
 684
 685   dm[4]+= 5.e-3/cosL;
 686   dm[5]-= 5.e-3/cosL;
 687
 688   //
 689
 690   dm[7]+= 5.e-3/cosL;
 691   dm[8]+= 5.e-3/cosL;
 692
 693   gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9);
 694
 695   // Tpc SAndwich 11 - Kevlar
 696
 697   dm[4]+= 5.e-3/cosL;
 698   dm[5]-= 5.e-3/cosL;
 699
 700   //
 701
 702   dm[7]+= 5.e-3/cosL;
 703   dm[8]+= 5.e-3/cosL;
 704
 705   gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9);
 706
 707   // Tpc SAndwich 12 - NOMEX
 708
 709   dm[4]+= 0.06/cosL;
 710   dm[5]-= 0.06/cosL;
 711
 712   //
 713
 714   dm[7]+= 0.06/cosL;
 715   dm[8]+= 0.06/cosL;
 716
 717   gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);
 718
 719   // 12->11->10->9
 720
 721   gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
 722   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 723   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 724
 725   // TSA9->TICL
 726
 727   gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
 728
 729   //--------------------------------------------------------------------
 730   //  Tpc Inner Containment vessel, Right part
 731   //  mother volume - Al, daughter - composite (sandwich)
 732   //--------------------------------------------------------------------
 733
 734   dm[0]= 0.;
 735   dm[1]= 360.;
 736   dm[2]=8.;
 737
 738   //
 739
 740   dm[3]= 72.1;
 741   dm[4]= 56.9;
 742   dm[5]= 60.65;
 743
 744   //
 745
 746   dm[6]= 73.3;
 747   dm[7]= 56.9;
 748   dm[8]= 60.65;
 749
 750   //
 751
 752   dm[9]= 73.3;
 753   dm[10]= 59.0;
 754   dm[11]= 60.65;
 755
 756   //
 757
 758   Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
 759   Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
 760
 761   //
 762
 763   dm[12]= 75.6;
 764   dm[13]= 59.0+(75.6-73.3)*tanR;
 765   dm[14]= 60.65;
 766
 767   //
 768
 769   dm[15]= 75.6;
 770   dm[16]= dm[13];
 771   dm[17]= dm[16]+sandThick/cosR;
 772
 773   //
 774
 775   dm[18]= 248.4;
 776   dm[19]= 59.0+(248.4-73.3)*tanR;
 777   dm[20]= dm[19]+sandThick/cosR;
 778
 779   //
 780
 781   dm[21]= 248.4;
 782   dm[22]= dm[19];
 783   dm[23]= 70.2;
 784
 785   //
 786
 787   dm[24]= 250.4;
 788   dm[25]= 66.0;
 789   dm[26]= 70.2;
 790
 791   gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
 792
 793
 794
 795   // Daughter volumes
 796
 797   // Tpc SAndwich 13 - Al
 798
 799   dm[0]= 0.;
 800   dm[1]= 360.;
 801   dm[2]= 2.;
 802
 803   //
 804
 805   dm[3]= 78.3;
 806   dm[4]= 59.0+(78.3-73.3)*tanR;
 807   dm[5]= dm[4]+sandThick/cosR;
 808
 809   //
 810
 811   dm[6]= 249.1;
 812   dm[7]= 59.0+(249.1-73.3)*tanR;
 813   dm[8]= dm[7]+sandThick/cosR;
 814
 815   //
 816
 817   gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
 818
 819   // Tpc SAndwich 14 - Tedlar
 820
 821   dm[4]+= 5.e-3/cosR;
 822   dm[5]-= 5.e-3/cosR;
 823
 824   //
 825
 826   dm[7]+= 5.e-3/cosR;
 827   dm[8]+= 5.e-3/cosR;
 828
 829   gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9);
 830
 831   // Tpc SAndwich 15 - Kevlar
 832
 833   dm[4]+= 5.e-3/cosR;
 834   dm[5]-= 5.e-3/cosR;
 835
 836   //
 837
 838   dm[7]+= 5.e-3/cosR;
 839   dm[8]+= 5.e-3/cosR;
 840
 841   gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9);
 842
 843   // Tpc SAndwich 16 - NOMEX
 844
 845   dm[4]+= 0.06/cosR;
 846   dm[5]-= 0.06/cosR;
 847
 848   //
 849
 850   dm[7]+= 0.06/cosR;
 851   dm[8]+= 0.06/cosR;
 852
 853   gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);
 854
 855   // 16->15->14->13
 856
 857   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 858   gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
 859   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 860
 861   // TS12->TICR
 862
 863   gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
 864
 865   //------------------------------------------------------
 866   // Tpc Inner Field Cage
 867   // mother volume - Al, daughters - composite (sandwich)
 868   //------------------------------------------------------
 869
 870   dm[0]= 0.;
 871   dm[1]= 360.;
 872   dm[2]=6.;
 873
 874   //
 875
 876   dm[3]= -253.0;
 877   dm[4]= 70.7;
 878   dm[5]= 79.2;
 879
 880   //
 881
 882   dm[6]= -251.0;
 883   dm[7]= 70.7;
 884   dm[8]= 79.2;
 885
 886   //
 887
 888   dm[9]= -251.0;
 889   dm[10]= 77.15;
 890   dm[11]= 79.2;
 891
 892   //
 893
 894   dm[12]= 251.0;
 895   dm[13]= 77.15;
 896   dm[14]= 79.2;
 897
 898   //
 899
 900   dm[15]= 251.0;
 901   dm[16]= 66.0;
 902   dm[17]= 79.2;
 903
 904   //
 905
 906   dm[18]= 253.0;
 907   dm[19]= 66.0;
 908   dm[20]= 79.2;
 909
 910   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
 911
 912   // Daughter volumes
 913
 914   // Tpc Sandwich 17 - Tedlar
 915
 916   dm[0]= 77.15;
 917   dm[1]= 79.2;
 918   dm[2]= 251.7;
 919
 920   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
 921
 922   // Tpc Sandwich 18 - Kevlar
 923
 924   dm[0]+= 5.e-3;
 925   dm[1]-= 5.e-3;
 926
 927   gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3);
 928
 929
 930   // Tpc Sandwich 19 - NOMEX
 931
 932   dm[0]+= 0.02;
 933   dm[1]-= 0.02;
 934
 935   gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
 936
 937   // 19->18->17
 938
 939   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 940   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 941
 942   // TS17->TIFC
 943
 944   gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
 945
 946   // TPC Rings
 947
 948   dm[0]= 70.7;
 949   dm[1]= 79.2;
 950   dm[2]= 0.3;
 951
 952   gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
 953
 954   dm[0]= 66.0;
 955   dm[1]= 70.2;
 956
 957   gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
 958
 959   dm[0]= 75.3;
 960   dm[1]= 79.2;
 961
 962   gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);
 963
 964   // TICL->TIIN
 965
 966   gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
 967
 968   // TICR->TIIN
 969
 970   gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
 971
 972   // TIFC->TIIN
 973
 974   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 975
 976   // Tpc Sandwich 21 - Al (central barrel)
 977
 978   dm[0]= 60.65;
 979   dm[1]= 61.21;
 980   dm[2]= 75.2;
 981
 982   gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
 983
 984   // Tpc Sandwich 22 - Tedlar (central barrel)
 985
 986   dm[0]+= 5.e-3;
 987   dm[1]-= 5.e-3;
 988
 989   gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3);
 990
 991   // Tpc Sandwich 23 - Kevlar (central barrel)
 992
 993   dm[0]+= 5.e-3;
 994   dm[1]-= 5.e-3;
 995
 996   gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3);
 997
 998   // Tpc Sandwich 24 - NOMEX (central barrel)
 999
1000   dm[0]+= 0.02;
1001   dm[1]-= 0.02;
1002
1003   gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3);
1004
1005   // 24->23->22->21
1006
1007   gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
1008   gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
1009   gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
1010
1011   gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1012
1013   // put everything into the TPC
1014
1015   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1016
1017
1018   //---------------------------------------------------------
1019   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1020   //  and its daughters (HV membrane, rods, readout chambers)
1021   //---------------------------------------------------------
1022
1023   dm[0]= 79.2;
1024   dm[1]= 258.0;
1025   dm[2]= 253.6;
1026
1027   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
1028
1029   // sector opening angles
1030
1031   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1032   Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1033
1034   // sector angle shift
1035
1036   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1037
1038   // number of sectors
1039
1040   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1041   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1042
1043   // All above parameters are identical for inner and outer
1044   // sectors. The distinction is kept for the historical reasons
1045   // and eventually will disappear.
1046
1047   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1048   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1049   Float_t space;
1050
1051   //-------------------------------------------------------------------------
1052   //   Tpc Inner Readout Chambers
1053   //-------------------------------------------------------------------------
1054
1055   dm[0]= 14.483;
1056   dm[1]= 23.3345;
1057   dm[2]= 1.6; // thickness
1058   dm[3]= 25.1;
1059
1060   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1061
1062   // this volume will be positioned in the empty space
1063   // of the end-cap to avoid overlaps
1064
1065   dm[0]= 13.7305;
1066   dm[1]= 21.1895;
1067   dm[2]= 2.25;
1068   dm[3]= 21.15;
1069
1070   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1071
1072
1073   //------------------------------------------------
1074   // Tpc Inner readout chamber Pad Plane
1075   //------------------------------------------------
1076
1077   dm[0]= 14.483;
1078   dm[1]= 23.3345;
1079   dm[2]= 0.5;
1080   dm[3]= 25.1;
1081
1082   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1083
1084   //
1085
1086   dm[0] -= 1.218511934;
1087   dm[1] -= 1.218511934;
1088   dm[2] = 0.35;
1089
1090   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
1091
1092   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1093
1094   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1095
1096
1097   //----------------------------------------------
1098   // Tpc Readout Chambers Empty spaces - for both
1099   // inner and outer sectors
1100   //----------------------------------------------
1101
1102   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1103
1104   // Inner sector - 4 spaces
1105
1106
1107   dm[3] = 4.7625;
1108   dm[0] = 12.472;
1109
1110   Float_t rr = 90.52;
1111   Float_t zz;
1112
1113   zz= -12.7875;
1114
1115   space = rr*tanAlpha-dm[0];
1116
1117   for(Int_t nsLow=0;nsLow<4;nsLow++){
1118
1119     rr += 9.525;
1120     dm[1]= rr*tanAlpha - space;
1121
1122     dm[2]=0.8;
1123
1124     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1125
1126     //
1127
1128     dm[2]= 1.2;
1129
1130     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1131
1132     rr += 0.4;
1133     dm[0] = rr*tanAlpha - space;
1134     zz += (0.4+9.525);
1135
1136   }
1137
1138   dm[0]= 12.472;
1139   // dm[1] - this is the dm[1] from the previous TRCE
1140   dm[2]= 1.05;
1141   dm[3]= 19.65;
1142
1143   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1144
1145   //
1146   // TPc Space for Connectors
1147   //
1148
1149   dm[0]= .3;
1150   dm[1]= .3;
1151   dm[2]= 4.5;
1152
1153   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1154
1155   // TPC Connectors
1156
1157   dm[0]= .25;
1158   dm[1]= .15;
1159   dm[2]= 3.75;
1160
1161   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1162
1163   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1164
1165   zz = -12.7875;
1166
1167
1168   Float_t alpha;
1169   Float_t astep;
1170
1171   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1172
1173   // inner part of the inner sector - 2 x 20 holes
1174
1175   astep = 20.00096874/19.;
1176
1177   alpha = 10.00048437-astep;
1178
1179   Float_t x1,x2;
1180
1181     x1 = 13.31175725;
1182     x1 -= 0.996357832;
1183
1184     x2 = 15.06180253;
1185     x2 -= 1.163028812;
1186
1187   Int_t ncon;
1188
1189   for(ncon=0;ncon<20;ncon++){
1190
1191     phi1 = 0.;
1192     theta1 = 90.+alpha;
1193     phi2=90.;
1194     theta2 = 90.;
1195     phi3 = (alpha>0) ? 0. : 180.;
1196     theta3 = TMath::Abs(alpha);
1197
1198     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1199
1200
1201
1202     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1203     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1204
1205
1206     x1 -= 1.296357833;
1207     x2 -= 1.463028812;
1208
1209     alpha -= astep;
1210     nRotMat++;
1211
1212   }
1213
1214   // outer part of the inner sector - 2 x 25 holes
1215
1216    astep = 20.00096874/24.;
1217    alpha = 10.00048437-astep;
1218
1219    x1 = 16.81184781;
1220    x1 -= 1.016295986;
1221
1222    x2 = 18.5618931;
1223    x2 -= 1.150914854;
1224
1225   for(ncon=0;ncon<25;ncon++){
1226
1227     phi1 = 0.;
1228     theta1 = 90.+alpha;
1229     phi2=90.;
1230     theta2 = 90.;
1231     phi3 = (alpha>0) ? 0. : 180.;
1232     theta3 = TMath::Abs(alpha);
1233
1234     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1235
1236
1237
1238     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1239     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1240
1241
1242     x1 -= 1.316295986;
1243     x2 -= 1.450914854;
1244
1245     alpha -= astep;
1246     nRotMat++;
1247
1248   }
1249
1250   //--------------------------------------------------------------------------
1251   //  TPC Outer Readout Chambers
1252   //  this is NOT a final design
1253   //--------------------------------------------------------------------------
1254
1255   dm[0]= 23.3875;
1256   dm[1]= 43.524;
1257   dm[2]= 1.5; //thickness
1258   dm[3]= 57.1;
1259
1260   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1261
1262   //------------------------------------------------
1263   // Tpc Outer readout chamber Pad Plane
1264   //------------------------------------------------
1265
1266   dm[2]= 0.5;
1267
1268   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1269
1270   dm[0] -= 1.218511934;
1271   dm[1] -= 1.218511934;
1272   dm[2] = 0.35;
1273
1274   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1275
1276   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1277
1278   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1279
1280   // empty space
1281
1282
1283   dm[0]= 21.035;
1284   dm[1]= 38.7205;
1285   dm[2]= 0.7;
1286   dm[3]= 50.15;
1287
1288   gMC->Gsposp("TRCE",11,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1289
1290   dm[0]= 22.2935;
1291   dm[1]= 40.5085;
1292   dm[2]= 2.25;
1293   dm[3]= 51.65;
1294
1295   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1296
1297
1298   dm[0]= 21.35;
1299   dm[1]= 38.7205;
1300   dm[2]= 2.25;
1301   dm[3]= 50.15;
1302
1303   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1304
1305
1306   //-----------------------------------------------
1307   // Tpc Services Support Wheel
1308   //-----------------------------------------------
1309
1310   dm[0]=0.;
1311   dm[1]=360.;
1312   dm[2]=18.;
1313   dm[3]=2.;
1314
1315   dm[4]= -5.;
1316   dm[5]= 77.017;
1317   dm[6]= 255.267;
1318
1319   dm[7]= 5.;
1320   dm[8]= dm[5];
1321   dm[9]= dm[6];
1322
1323   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1324
1325   // Tpc Services Wheel Cover
1326
1327   dm[4]= -0.5;
1328   dm[7]= 0.5;
1329
1330   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1331
1332   // Tpc Service wheel Cover Empty space
1333
1334   dm[0]= 10.99;
1335   dm[1]= 39.599;
1336   dm[2]= .5;
1337   dm[3]= 81.125;
1338
1339   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1340
1341   // Tpc services Wheel Empty Spaces
1342
1343   dm[0]= 13.18017507;
1344   dm[1]= 44.61045938;
1345   dm[2]= 4.;
1346   dm[3]= 89.125;
1347
1348   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1349
1350   // Tpc Services Wheel Bars
1351
1352   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1353
1354   // bars-> TWES
1355
1356   dm[2]= 4.;
1357   dm[3]= .4;
1358
1359   dm[0]= 13.8149522;
1360   dm[1]= 13.95601379;
1361
1362   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1363
1364   dm[0]= 43.83462067;
1365   dm[1]= 43.97568225;
1366
1367   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1368
1369   // TPc ELectronics - right now 30% X0 Si
1370
1371   dm[0]= 14.03813696;
1372   dm[1]= 43.3524075;
1373   dm[2]= 1.404;
1374   dm[3]= 83.125;
1375
1376   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1377   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1378
1379   //--------------------------------------------------------------------------
1380   //  End caps
1381   //--------------------------------------------------------------------------
1382
1383   // TPc Main Wheel - Al
1384
1385   dm[0]= 75.3;
1386   dm[1]= 264.8;
1387   dm[2]= 3.0;
1388
1389   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1390
1391   // TPc Extra Wheel (to avoid overlapping) - Al
1392
1393   dm[0]= 264.8;
1394   dm[1]= 277.0;
1395   dm[2]= 1.95;
1396
1397   gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1398
1399   //--------------------------------------------------------------------------
1400   //  Tpc Empty Space for the Readout chambers
1401   //--------------------------------------------------------------------------
1402
1403   Float_t rLow= 86.2;
1404   Float_t rUp= 243.5;
1405   Float_t dR = 0.5*(rUp-rLow);
1406
1407   space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1408
1409   dm[0]= rLow*tanAlpha-space;
1410   dm[1]= rUp*tanAlpha-space;
1411   dm[2]= 3.0;
1412   dm[3]= dR;
1413
1414   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1415
1416   // TIC1->TESR
1417
1418
1419   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1420
1421
1422   // TOC1->TESR
1423
1424   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1425
1426   // Tpc Empty Space Bars - Al (daughters of TESR)
1427
1428   Float_t zBar;
1429
1430   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1431
1432   // lower bar
1433
1434   dm[0]= rLow*tanAlpha-space;
1435   dm[1]= 88.7*tanAlpha-space;
1436   dm[2]= 0.95;
1437   dm[3]= 1.275;
1438
1439   zBar = -dR+dm[3];
1440
1441   gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1442
1443   // middle bar
1444
1445   dm[0]= 131.65*tanAlpha-space;
1446   dm[1]= 136.5*tanAlpha-space;
1447   dm[3]= 2.425;
1448
1449   zBar = -dR +131.65+dm[3]-rLow;
1450
1451   gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1452
1453   // upper bar
1454
1455   dm[0]= 240.4*tanAlpha-space;
1456   dm[1]= rUp*tanAlpha-space;
1457   dm[3]= 1.55;
1458
1459   zBar = dR-dm[3];
1460
1461   gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1462
1463   //------------------------------------------------------
1464   //  TPc Lower "S" Sectors
1465   //------------------------------------------------------
1466
1467   Float_t deadSpace;
1468
1469
1470   Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
1471   Float_t inSecUpEdge =  fTPCParam->GetInnerRadiusUp();
1472
1473   dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1474   dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1475   dm[2] = 0.5*(250. - 0.3);
1476   dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);
1477
1478   gMC->Gsvolu("TPLS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1479
1480   //----------------------------------------------------------
1481   //  TPc Upper Sectors
1482   //----------------------------------------------------------
1483
1484   Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
1485   Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
1486
1487   dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1488   dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1489   dm[2] = 0.5*(250. - 0.3);
1490   dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
1491
1492   gMC->Gsvolu("TPUS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1493
1494   //--------------------------------------------------------
1495   // TPc Sensitive Strips, the same for S and L sectors
1496   //--------------------------------------------------------
1497
1498   gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
1499
1500   Int_t nofStrips,nstr;
1501   Float_t r1,r2,zs;
1502   Float_t stripThick = 0.01; // 100 microns
1503
1504   // inner sector
1505
1506   nofStrips = fTPCParam->GetNRowLow();
1507   deadSpace = fTPCParam->GetInnerWireMount();
1508
1509   dm[2] = 0.5*(250. - 0.3);
1510   dm[3] = 0.5 * stripThick;
1511
1512   for(nstr=0;nstr<nofStrips;nstr++){
1513
1514     r1 = fTPCParam->GetPadRowRadiiLow(nstr);
1515     r2 = r1 + stripThick;
1516     dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1517     dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1518     zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
1519     zs += r1;
1520     zs += dm[3];
1521
1522     gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
1523
1524   }
1525
1526   Int_t nsSave = nofStrips;
1527
1528   // outer sector
1529
1530   nofStrips = fTPCParam->GetNRowUp();
1531   deadSpace = fTPCParam->GetOuterWireMount();
1532
1533   dm[2] = 0.5*(250. - 0.3);
1534   dm[3] = 0.5 * stripThick;
1535
1536    for(nstr=0;nstr<nofStrips;nstr++){
1537
1538     r1 = fTPCParam->GetPadRowRadiiUp(nstr);
1539     r2 = r1 + stripThick;
1540     dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1541     dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1542     zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
1543     zs += r1;
1544     zs += dm[3];
1545
1546     gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
1547
1548    }
1549
1550
1551   //-------------------------------------------------------
1552   //  positioning of the empty spaces into the main wheel
1553   //  and readout chambers and sectors into the drift gas
1554   //-------------------------------------------------------
1555
1556   Float_t rCenter,xc,yc;
1557   Float_t rInner,rOuter; // center of the inner and outer chamber
1558
1559   rCenter = rLow+dR;
1560
1561   rInner = 108.07;
1562   rOuter = 190.68;
1563
1564   for(Int_t ns=0; ns<nInnerSector;ns++){
1565
1566     phi1 = ns * innerOpenAngle + innerAngleShift;
1567     phi1 *= kRaddeg; // in degrees
1568
1569     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1570
1571     if (phi1 > 360.) phi1 -= 360.;
1572
1573     theta1 = 90.;
1574     phi2   = 90.;
1575     theta2 = 180.;
1576     phi3   = ns * innerOpenAngle + innerAngleShift;
1577     phi3 *= kRaddeg; // in degrees
1578
1579     phi3 = (Float_t)TMath::Nint(phi3);
1580
1581     if(phi3 > 360.) phi3 -= 360.;
1582
1583     theta3 = 90.;
1584
1585     // "holes"->End plate
1586
1587     xc = rCenter*TMath::Cos(phi3*kDegrad);
1588     yc = rCenter*TMath::Sin(phi3*kDegrad);
1589
1590     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1591
1592     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1593
1594     // TSCE->TSWC (services wheel volumes)
1595
1596     xc = 166.142*TMath::Cos(phi3*kDegrad);
1597     yc = 166.142*TMath::Sin(phi3*kDegrad);
1598
1599     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1600     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1601
1602
1603     // readout chambers->TDGN (drift gas)
1604
1605     xc = rInner*TMath::Cos(phi3*kDegrad);
1606     yc = rInner*TMath::Sin(phi3*kDegrad);
1607
1608     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1609
1610     // here lower sectors
1611
1612     gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
1613     gMC->Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
1614
1615     xc = rOuter*TMath::Cos(phi3*kDegrad);
1616     yc = rOuter*TMath::Sin(phi3*kDegrad);
1617
1618     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1619
1620     // here upper sectors
1621
1622     gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
1623     gMC->Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
1624
1625     nRotMat++;
1626
1627     theta2 = 0.; // reflection
1628
1629     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1630
1631     xc = rInner*TMath::Cos(phi3*kDegrad);
1632     yc = rInner*TMath::Sin(phi3*kDegrad);
1633
1634     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1635
1636     xc = rOuter*TMath::Cos(phi3*kDegrad);
1637     yc = rOuter*TMath::Sin(phi3*kDegrad);
1638
1639     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1640
1641     nRotMat++;
1642
1643   }
1644
1645   // reflection matrix
1646
1647   theta1 = 90.;
1648   phi1   = 0.;
1649   theta2 = 90.;
1650   phi2   = 270.;
1651   theta3 = 180.;
1652   phi3   = 0.;
1653
1654   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1655
1656
1657   // TPMW->TPC
1658
1659   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1660   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1661   gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1662   gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.5,0,"ONLY");
1663
1664
1665
1666   //-------------------------------------------------------
1667   // Tpc High Voltage Membrane - NOMEX honeycomb
1668   //-------------------------------------------------------
1669
1670   dm[0]=0.,
1671   dm[1]=360.;
1672   dm[2]=18.;
1673   dm[3]=2.;
1674
1675   //
1676
1677   dm[4]= -0.3;
1678   dm[5]= 81.156;
1679   dm[6]= 253.386;
1680
1681   //
1682
1683   dm[7]= 0.3;
1684   dm[8]= dm[5];
1685   dm[9]= dm[6];
1686
1687   gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1688
1689   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1690
1691   //----------------------------------------------------------
1692   // TPc Support Rods - MAKROLON
1693   //----------------------------------------------------------
1694
1695   dm[0]= 0.9;
1696   dm[1]= 1.2;
1697   dm[2]= 126.65;
1698
1699   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1700
1701   for(Int_t nrod=1;nrod<18;nrod++){
1702     Float_t angle=innerOpenAngle*(Float_t)nrod;
1703
1704     xc=82.4*TMath::Cos(angle);
1705     yc=82.4*TMath::Sin(angle);
1706
1707     gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
1708     gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
1709
1710     xc=254.2*TMath::Cos(angle);
1711     yc=254.2*TMath::Sin(angle);
1712
1713     gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
1714     gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");
1715
1716   }
1717
1718   //----------------------------------------------------------
1719   // Tpc High Voltage rod - MAKROLON + Copper cable
1720   //----------------------------------------------------------
1721
1722   // rod with cable (Left)
1723
1724   dm[0]=0.;
1725   dm[1]=2.25;
1726   dm[2]=126.65;
1727
1728   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1729
1730   // HV cable
1731
1732   dm[0]=0.;
1733   dm[1]=0.3;
1734   dm[2]=126.65;
1735
1736   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1737
1738   // empty space
1739
1740   dm[0]=0.3;
1741   dm[1]=1.;
1742   dm[2]=126.65;
1743
1744   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1745
1746   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1747   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1748
1749   // rod without cable
1750
1751   dm[0]=1.8;
1752   dm[1]=2.25;
1753   dm[2]=126.65;
1754
1755   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1756
1757
1758
1759   gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
1760   gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
1761
1762   gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
1763   gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");
1764
1765
1766
1767   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1768
1769   // services wheel cover -> wheel
1770
1771
1772   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1773   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1774
1775
1776   // put the wheel into the TPC
1777
1778   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1779   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1780
1781   gMC->Gsord("TPMW",6);
1782   gMC->Gsord("TPLS",3);
1783   gMC->Gsord("TPUS",3);
1784   gMC->Gsord("TDGN",6);
1785   gMC->Gsord("TSSW",6);
1786   gMC->Gsord("TSWC",6);
1787
1788   // put the TPC into ALIC (main mother volume)
1789
1790   gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
1791
1792
1793 } // end of function
1794
1795 //_____________________________________________________________________________
1796 void AliTPCv1::DrawDetector()
1797 {
1798   //
1799   // Draw a shaded view of the Time Projection Chamber version 1
1800   //
1801
1802   // Set everything unseen
1803   gMC->Gsatt("*", "seen", -1);
1804   //
1805   // Set ALIC mother transparent
1806   gMC->Gsatt("ALIC","SEEN",0);
1807   //
1808   // Set the volumes visible
1809   gMC->Gsatt("TPC ","SEEN",0);
1810   gMC->Gsatt("TOIN","SEEN",1);
1811   gMC->Gsatt("TOIN","COLO",7);
1812   gMC->Gsatt("TPCR","SEEN",0);
1813   gMC->Gsatt("TOCV","SEEN",1);
1814   gMC->Gsatt("TOCV","COLO",4);
1815   gMC->Gsatt("TSA1","SEEN",0);
1816   gMC->Gsatt("TSA2","SEEN",0);
1817   gMC->Gsatt("TSA3","SEEN",0);
1818   gMC->Gsatt("TSA4","SEEN",0);
1819   gMC->Gsatt("TOFC","SEEN",1);
1820   gMC->Gsatt("TOFC","COLO",4);
1821   gMC->Gsatt("TSA5","SEEN",0);
1822   gMC->Gsatt("TSA6","SEEN",0);
1823   gMC->Gsatt("TSA7","SEEN",0);
1824   gMC->Gsatt("TIIN","COLO",7);
1825   gMC->Gsatt("TIIN","SEEN",1);
1826   gMC->Gsatt("TICL","SEEN",0);
1827   gMC->Gsatt("TSA9","SEEN",0);
1828   gMC->Gsatt("TS10","SEEN",0);
1829   gMC->Gsatt("TS11","SEEN",0);
1830   gMC->Gsatt("TS12","SEEN",0);
1831   gMC->Gsatt("TICR","SEEN",0);
1832   gMC->Gsatt("TS13","SEEN",0);
1833   gMC->Gsatt("TS14","SEEN",0);
1834   gMC->Gsatt("TS15","SEEN",0);
1835   gMC->Gsatt("TS16","SEEN",0);
1836   gMC->Gsatt("TIFC","SEEN",1);
1837   gMC->Gsatt("TIFC","COLO",4);
1838   gMC->Gsatt("TS17","SEEN",0);
1839   gMC->Gsatt("TS18","SEEN",0);
1840   gMC->Gsatt("TS19","SEEN",0);
1841   gMC->Gsatt("TS21","SEEN",0);
1842   gMC->Gsatt("TS22","SEEN",0);
1843   gMC->Gsatt("TS23","SEEN",0);
1844   gMC->Gsatt("TS24","SEEN",0);
1845   gMC->Gsatt("TDGN","SEEN",0);
1846   gMC->Gsatt("TIRC","SEEN",0);
1847   gMC->Gsatt("TIC1","SEEN",1);
1848   gMC->Gsatt("TIPP","SEEN",0);
1849   gMC->Gsatt("TIC3","SEEN",0);
1850   gMC->Gsatt("TRCE","SEEN",0);
1851   gMC->Gsatt("TPSC","SEEN",0);
1852   gMC->Gsatt("TPCC","SEEN",0);
1853   gMC->Gsatt("TORC","SEEN",0);
1854   gMC->Gsatt("TOPP","SEEN",0);
1855   gMC->Gsatt("TOC3","SEEN",0);
1856   gMC->Gsatt("TOC1","SEEN",1);
1857   gMC->Gsatt("TSSW","SEEN",1);
1858   gMC->Gsatt("TSWC","SEEN",1);
1859   gMC->Gsatt("TSCE","SEEN",1);
1860   gMC->Gsatt("TSSW","COLO",3);
1861   gMC->Gsatt("TSWC","COLO",3);
1862   gMC->Gsatt("TSCE","COLO",6);
1863   gMC->Gsatt("TWES","SEEN",0);
1864   gMC->Gsatt("TSWB","SEEN",0);
1865   gMC->Gsatt("TPEL","SEEN",0);
1866   gMC->Gsatt("TPMW","SEEN",1);
1867   gMC->Gsatt("TPEW","SEEN",1);
1868   gMC->Gsatt("TESR","SEEN",1);
1869   gMC->Gsatt("TPMW","COLO",12);
1870   gMC->Gsatt("TPEW","COLO",12);
1871   gMC->Gsatt("TWES","COLO",5);
1872   gMC->Gsatt("TIC1","COLO",5);
1873   gMC->Gsatt("TOC1","COLO",5);
1874   gMC->Gsatt("TESB","SEEN",0);
1875   gMC->Gsatt("TPLS","SEEN",0);
1876   gMC->Gsatt("TPUS","SEEN",0);
1877   gMC->Gsatt("TPSS","SEEN",0);
1878   gMC->Gsatt("THVM","SEEN",1);
1879   gMC->Gsatt("THVM","COLO",11);
1880   gMC->Gsatt("TPSR","SEEN",0);
1881   gMC->Gsatt("THVL","SEEN",0);
1882   gMC->Gsatt("THVC","SEEN",0);
1883   gMC->Gsatt("THVE","SEEN",0);
1884   gMC->Gsatt("THVR","SEEN",0);
1885
1886   gMC->Gdopt("hide", "on");
1887   gMC->Gdopt("shad", "on");
1888   gMC->Gsatt("*", "fill", 7);
1889   gMC->SetClipBox(".");
1890   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1891   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1892   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1893   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1894   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1895   gMC->DefaultRange();
1896   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1897   gMC->Gdhead(1111, "Time Projection Chamber");
1898   gMC->Gdman(18, 4, "MAN");
1899   gMC->Gdopt("hide","off");
1900 }
1901
1902 //_____________________________________________________________________________
1903 void AliTPCv1::CreateMaterials()
1904 {
1905   //
1906   // Define materials for Time Projection Chamber
1907   //
1908   AliTPC::CreateMaterials();
1909 }
1910
1911 //_____________________________________________________________________________
1912 void AliTPCv1::Init()
1913 {
1914   //
1915   // Initialises TPC detector after it has been created
1916   //
1917
1918   fIdSens=gMC->VolId("TPSS"); // sensitive strip
1919   fIdLSec=gMC->VolId("TPLS"); // lower sector
1920   fIdUSec=gMC->VolId("TPUS"); // upper sector
1921
1922   printf("TPC version 1 initialized\n");
1923 }
1924
1925 //_____________________________________________________________________________
1926 void AliTPCv1::StepManager()
1927 {
1928   //
1929   // Called at every step in the Time Projection Chamber
1930   //
1931   Int_t         copy, id, i;
1932   Float_t       hits[4];
1933   Int_t         vol[2];
1934   TLorentzVector p;
1935  //
1936
1937   if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1938
1939     //
1940     // Only charged tracks entering the sensitive volume
1941     //
1942
1943     id = gMC->CurrentVolID(copy);
1944
1945     if(id == fIdSens){
1946
1947       // sensitive volume (strip)
1948
1949       vol[1]= copy-1; // row number (absolute)
1950
1951       // sector type
1952
1953       id = gMC->CurrentVolOffID(1,copy);
1954
1955       if(id == fIdLSec){
1956
1957         // lower sector
1958
1959         vol[0] = copy-1; // sector number
1960
1961       }
1962       else {
1963
1964         // upper sector
1965
1966         vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
1967         vol[1] -= fTPCParam->GetNRowLow(); // row number
1968
1969       }
1970
1971       if(vol[1] == 0){
1972
1973         // because Jouri wants to have this
1974
1975         gMC->TrackMomentum(p);
1976         hits[0]=p[0];
1977         hits[1]=p[1];
1978         hits[2]=p[2];
1979         hits[3]=0.; // this hit has no energy loss
1980         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1981
1982         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1983
1984         gMC->TrackPosition(p);
1985         hits[0]=p[0];
1986         hits[1]=p[1];
1987         hits[2]=p[2];
1988         hits[3]=0.; // this hit has no energy loss
1989         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1990
1991         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1992
1993       }
1994
1995       gMC->TrackPosition(p);
1996       for(i=0;i<3;++i) hits[i]=p[i];
1997       hits[3]=1; //I'd like to have something positive here (I.Belikov)
1998       // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1999
2000       AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
2001
2002     }
2003
2004   }
2005
2006 }
2007 //_____________________________________________________________________________
2008
2009
2010