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