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