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 1.26  2001/04/24 11:17:33  kowal2
  19 New TPC geometry.
  20
  21 Revision 1.25  2001/03/13 13:07:34  kowal2
  22 Corrected bug in the TPC mother volume geometry.
  23 Thanks to A. Morsch
  24
  25 Revision 1.24  2000/11/30 11:48:50  kowal2
  26 TLorentzVector.h adde to satisfy the latest changes by Federico
  27
  28 Revision 1.23  2000/11/14 10:48:57  kowal2
  29 Correct material used for TSA4. Thanks to J. Barbosa.
  30
  31 Revision 1.22  2000/11/06 17:24:10  kowal2
  32 Corrected bug in the outer containment vessel and
  33 the outer field cage geometry.
  34 Thanks to J. Barbosa.
  35
  36 Revision 1.21  2000/11/02 16:55:24  kowal2
  37 Corrected bug in the inner containment vessel geometry.
  38 Thanks to J. Belikov
  39
  40 Revision 1.20  2000/11/02 07:24:11  kowal2
  41 Correction in the TPC geometry.
  42 Changes due to the new hit structure.
  43
  44 Revision 1.19  2000/07/10 20:57:39  hristov
  45 Update of TPC code and macros by M.Kowalski
  46
  47 Revision 1.18  2000/06/30 12:07:50  kowal2
  48 Updated from the TPC-PreRelease branch
  49
  50 Revision 1.17.2.4  2000/06/26 07:39:42  kowal2
  51 Changes to obey the coding rules
  52
  53 Revision 1.17.2.3  2000/06/25 08:38:41  kowal2
  54 Splitted from AliTPCtracking
  55
  56 Revision 1.17.2.2  2000/06/16 12:58:13  kowal2
  57 Changed parameter settings
  58
  59 Revision 1.17.2.1  2000/06/09 07:15:07  kowal2
  60
  61 Defaults loaded automatically (hard-wired)
  62 Optional parameters can be set via macro called in the constructor
  63
  64 Revision 1.17  2000/05/15 10:00:30  kowal2
  65 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  66
  67 Revision 1.16  2000/04/17 09:37:33  kowal2
  68 removed obsolete AliTPCDigitsDisplay.C
  69
  70 Revision 1.15.8.2  2000/04/10 08:29:48  kowal2
  71
  72 Different pad geometry for different sectors
  73 Updated readouch chambers geometry
  74
  75 Revision 1.15.8.1  2000/04/10 07:56:53  kowal2
  76 Not used anymore - removed
  77
  78 Revision 1.15  1999/11/04 17:28:07  fca
  79 Correct barrel part of HV Degrader
  80
  81 Revision 1.14  1999/10/08 06:27:23  fca
  82 Corrected bug in the HV degrader geometry, thanks to G.Tabary
  83
  84 Revision 1.13  1999/10/04 13:39:54  fca
  85 Correct array index problem
  86
  87 Revision 1.12  1999/09/29 09:24:34  fca
  88 Introduction of the Copyright and cvs Log
  89
  90 */
  91
  92 //
  93 ///////////////////////////////////////////////////////////////////////////////
  94 //                                                                           //
  95 //  Time Projection Chamber version 1 -- detailed TPC and fast simulation    //
  96 //                                                                           //
  97 //Begin_Html
  98 /*
  99 <img src="picts/AliTPCv1Class.gif">
 100 */
 101 //End_Html
 102 //                                                                           //
 103 //                                                                           //
 104 ///////////////////////////////////////////////////////////////////////////////
 105
 106 #include <TMath.h>
 107 #include <TGeometry.h>
 108 #include <TNode.h>
 109 #include <TBRIK.h>
 110 #include <TTUBE.h>
 111 #include "AliTPCv1.h"
 112 #include "AliRun.h"
 113 #include <iostream.h>
 114 #include <fstream.h>
 115 #include "TLorentzVector.h"
 116
 117 #include "AliMC.h"
 118 #include "AliConst.h"
 119
 120 #include "AliTPCParam.h"
 121 #include "AliTPCParamSR.h"
 122 #include "AliTPCDigitsArray.h"
 123 #include <TInterpreter.h>
 124
 125 ClassImp(AliTPCv1)
 126
 127 //_____________________________________________________________________________
 128
 129   AliTPCv1::AliTPCv1(){
 130
 131   fHitType = 1;
 132
 133 }
 134
 135 //_____________________________________________________________________________
 136 AliTPCv1::AliTPCv1(const char *name, const char *title)
 137   :AliTPC(name, title) {
 138   //
 139   // Standard constructor for Time Projection Chamber
 140   //
 141   fIdSens=fIdLSec=fIdUSec=0;
 142
 143   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 144
 145   if (fTPCParam)
 146      fTPCParam->Write(fTPCParam->GetTitle());
 147
 148   fHitType=1;
 149 }
 150
 151 //_____________________________________________________________________________
 152 void AliTPCv1::CreateGeometry()
 153 {
 154   //-------------------------------------------------------------
 155   // Creates geometry for Time Projection Chamber version 1
 156   // Detailed geometry -- Fast simulation - space points
 157   // at the pad-rows centers
 158   // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
 159   //-----------------------------------------------------------
 160
 161   //Begin_Html
 162   /*
 163     <img src="picts/AliTPC.gif">
 164   */
 165   //End_Html
 166   //Begin_Html
 167   /*
 168     <img src="picts/AliTPCv1Tree.gif">
 169   */
 170   //End_Html
 171   Float_t dm[50];
 172
 173   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 174
 175   Int_t idrotm[120]; // rotation matrices
 176
 177   Int_t nRotMat = 0; // actual number of rotation matrices
 178
 179   //
 180   //  Mother volume TPC (Air) - all volumes will be positioned in it
 181   //
 182
 183   dm[0]=0.;
 184   dm[1]=360.;
 185   dm[2]=8.;
 186
 187   //
 188
 189   dm[3]=-283.7;
 190   dm[4]=65.6;
 191   dm[5]=278.;
 192
 193   //
 194
 195   dm[6]=-253.6;
 196   dm[7]=65.6;
 197   dm[8]=278.;
 198
 199   //
 200
 201   dm[9]=-73.3;
 202   dm[10]=60.9;
 203   dm[11]=278.;
 204
 205   //
 206
 207   dm[12]=-73.3;
 208   dm[13]=56.9;
 209   dm[14]=278.;
 210
 211   //
 212
 213   dm[15]=73.3;
 214   dm[16]=56.9;
 215   dm[17]=278.;
 216
 217   //
 218
 219   dm[18]=73.3;
 220   dm[19]=60.9;
 221   dm[20]=278.;
 222
 223   //
 224
 225   dm[21]=253.6;
 226   dm[22]=65.6;
 227   dm[23]=278.;
 228
 229   //
 230
 231   dm[24]=283.7;
 232   dm[25]=65.6;
 233   dm[26]=278.;
 234
 235   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27);
 236
 237   // outer part
 238
 239   //-------------------------------------------------------------------
 240   //   Tpc Outer INsulator (CO2) - contains cont. vessel and field cage
 241   //-------------------------------------------------------------------
 242
 243   dm[0]= 0.;
 244   dm[1]= 360.;
 245   dm[2]= 6.;
 246
 247   //
 248
 249   dm[3]=-253.6;
 250   dm[4]=258.;
 251   dm[5]=275.5;
 252
 253   //
 254
 255   dm[6]=-250.6;
 256   dm[7]=258.;
 257   dm[8]=275.5;
 258
 259   //
 260
 261   dm[9]=-250.6;
 262   dm[10]=258.;
 263   dm[11]=278.;
 264
 265   //
 266
 267   dm[12]=253.6;
 268   dm[13]=258.;
 269   dm[14]=278.;
 270
 271   //
 272
 273   dm[15]=253.6;
 274   dm[16]=264.8;
 275   dm[17]=278.;
 276
 277   //
 278
 279   dm[18]=256.6;
 280   dm[19]=264.8;
 281   dm[20]=278.;
 282
 283   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 284
 285   //----------------------------------------------------------------
 286   // Tpc Outer Contaiment Vessel
 287   //  mother volume - Al, daughters - composite (sandwich)
 288   //----------------------------------------------------------------
 289
 290   dm[0]=0.;
 291   dm[1]=360.;
 292   dm[2]=6.;
 293
 294   //
 295
 296   dm[3]=-250.6;
 297   dm[4]=270.4;
 298   dm[5]=278.;
 299
 300   //
 301
 302   dm[6]=-247.6;
 303   dm[7]=270.4;
 304   dm[8]=278.;
 305
 306   //
 307
 308   dm[9]=-247.6;
 309   dm[10]=274.81;
 310   dm[11]=278.;
 311
 312   //
 313
 314   dm[12]=253.6;
 315   dm[13]=274.81;
 316   dm[14]=278.;
 317
 318   //
 319
 320   dm[15]=253.6;
 321   dm[16]=264.8;
 322   dm[17]=278.;
 323
 324   //
 325
 326   dm[18]=256.6;
 327   dm[19]=264.8;
 328   dm[20]=278.;
 329
 330   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
 331
 332   // Daughter volumes - sandwich
 333
 334   // Tpc SAndwich 1 - Al
 335
 336   dm[0]=274.81;
 337   dm[1]=278.;
 338   dm[2]=252.1;
 339
 340   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 341
 342   // Tpc SAndwich 2 - epoxy glue (I use Lexan)
 343
 344   dm[0] += 5.e-3;
 345   dm[1] -= 5.e-3;
 346
 347   gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3);
 348
 349   // Tpc SAndwich 3 - Tedlar
 350
 351   dm[0] += 0.01;
 352   dm[1] -= 0.01;
 353
 354   gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3);
 355
 356
 357   // Tpc SAndwich 4 - fiber glass (G10)
 358
 359   dm[0] += 5.e-3;
 360   dm[1] -= 5.e-3;
 361
 362   gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3);
 363
 364   // Tpc SAndwich 5 - NOMEX honeycomb
 365
 366   dm[0] += 0.075;
 367   dm[1] -= 0.075;
 368
 369   gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3);
 370
 371   // 5->4->3->2->1->TCOV
 372
 373
 374   gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY");
 375   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 376   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 377   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 378
 379   gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY");
 380
 381   // TCOV-> TOIN
 382
 383   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 384
 385   //-------------------------------------------------------
 386   //  Tpc Outer Field Cage
 387   //  mother volume - Al, daughters - composite (sandwich)
 388   //-------------------------------------------------------
 389
 390   dm[0]=0.;
 391   dm[1]=360.;
 392   dm[2]=6.;
 393
 394   //
 395
 396   dm[3]=-253.6;
 397   dm[4]=258.;
 398   dm[5]=275.5;
 399
 400   //
 401
 402   dm[6]=-250.6;
 403   dm[7]=258.;
 404   dm[8]=275.5;
 405
 406   //
 407
 408   dm[9]=-250.6;
 409   dm[10]=258.;
 410   dm[11]=260.05;
 411
 412   //
 413
 414   dm[12]=250.6;
 415   dm[13]=258.;
 416   dm[14]=260.05;
 417
 418   //
 419
 420   dm[15]=250.6;
 421   dm[16]=258.;
 422   dm[17]=275.5;
 423
 424   //
 425
 426   dm[18]=253.6;
 427   dm[19]=258.;
 428   dm[20]=275.5;
 429
 430   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 431
 432   // Daughter volumes
 433
 434   // Tpc SAndwich 6 - Tedlar
 435
 436   dm[0]= 258.;
 437   dm[1]= 260.05;
 438   dm[2]= 252.1;
 439
 440   gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
 441
 442   // Tpc SAndwich 7 - fiber glass
 443
 444   dm[0] += 5.e-3;
 445   dm[1] -= 5.e-3;
 446
 447   gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3);
 448
 449
 450   // Tpc SAndwich 8 - NOMEX
 451
 452   dm[0] += 0.02;
 453   dm[1] -= 0.02;
 454
 455   gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
 456
 457   // 8->7->6->TOFC
 458
 459   gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
 460   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 461   gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY");
 462
 463   // TOFC->TOIN
 464
 465   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 466
 467   // TOIN->TPC
 468
 469   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 470
 471   // inner part
 472
 473   //--------------------------------------------------------------------
 474   // Tpc Inner INsulator (CO2) - inner f.c. will be placed there
 475   // Inner containment vessel will be placed directly in the TPC
 476   //--------------------------------------------------------------------
 477
 478   dm[0]=0.;
 479   dm[1]=360.;
 480   dm[2]=4.;
 481
 482   //
 483
 484   dm[3]=-253.6;
 485   dm[4]=65.9;
 486   dm[5]=79.2;
 487
 488   //
 489
 490   dm[6]=-73.3;
 491   dm[7]=61.2;
 492   dm[8]=79.2;
 493
 494   //
 495
 496   dm[9]=73.3;
 497   dm[10]=61.2;
 498   dm[11]=79.2;
 499
 500   //
 501
 502   dm[12]=253.6;
 503   dm[13]=65.9;
 504   dm[14]=79.2;
 505
 506   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15);
 507
 508   // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2
 509
 510   dm[0]=79.16;
 511   dm[1]=79.2;
 512   dm[2]=88.;
 513
 514   gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3);
 515
 516   gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY");
 517
 518   //-----------------------------------------------------
 519   // Tpc Inner Field Cage
 520   // mother volume - Al, daughters - composite (sandwich)
 521   //------------------------------------------------------
 522
 523   dm[0]=0.;
 524   dm[1]=360.;
 525   dm[2]=10.;
 526
 527   //
 528
 529   dm[3]=-253.6;
 530   dm[4]=70.3;
 531   dm[5]=79.2;
 532
 533   //
 534
 535   dm[6]=-250.6;
 536   dm[7]=70.3;
 537   dm[8]=79.2;
 538
 539   //
 540
 541   dm[9]=-250.6;
 542   dm[10]=77.05;
 543   dm[11]=79.2;
 544
 545   //
 546
 547   dm[12]=-88.;
 548   dm[13]=77.05;
 549   dm[14]=79.2;
 550
 551   //
 552
 553   dm[15]=-88.;
 554   dm[16]=77.09;
 555   dm[17]=79.16;
 556
 557   //
 558
 559   dm[18]=88.;
 560   dm[19]=77.09;
 561   dm[20]=79.16;
 562
 563   //
 564
 565   dm[21]=88.;
 566   dm[22]=77.05;
 567   dm[23]=79.2;
 568
 569   //
 570
 571   dm[24]=250.6;
 572   dm[25]=77.05;
 573   dm[26]=79.2;
 574
 575   //
 576
 577   dm[27]=250.6;
 578   dm[28]=70.3;
 579   dm[29]=79.2;
 580
 581   //
 582
 583   dm[30]=253.6;
 584   dm[31]=70.3;
 585   dm[32]=79.2;
 586
 587   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33);
 588
 589   // daughter volumes - central part
 590
 591   // Tpc Sandwich 9 -Tedlar
 592
 593   dm[0]=77.09;
 594   dm[1]=79.16;
 595   dm[2]=88.;
 596
 597   gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3);
 598
 599   // Tpc Sandwich 10 - fiber glass (G10)
 600
 601   dm[0] += 5.e-3;
 602   dm[1] -= 5.e-3;
 603
 604   gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3);
 605
 606   // Tpc Sandwich 11 - NOMEX
 607
 608   dm[0] += 0.03;
 609   dm[1] -= 0.03;
 610
 611   gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3);
 612
 613   // 11->10->9->TIFC
 614
 615   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 616   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 617
 618   gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY");
 619
 620   // daughter volumes - outer parts (reinforced)
 621
 622   // Tpc Sandwich 12 -Tedlar
 623
 624   dm[0]=77.05;
 625   dm[1]=79.2;
 626   dm[2]=82.05;
 627
 628   gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3);
 629
 630   // Tpc Sandwich 13 - fiber glass (G10)
 631
 632   dm[0] += 5.e-3;
 633   dm[1] -= 5.e-3;
 634
 635   gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3);
 636
 637   // Tpc Sandwich 14 - NOMEX
 638
 639   dm[0] += 0.07;
 640   dm[1] -= 0.07;
 641
 642   gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3);
 643
 644   // 14->13->12->TIFC
 645
 646   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 647   gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY");
 648
 649   gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY");
 650   gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY");
 651
 652   // place this inside the inner insulator
 653
 654   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 655
 656   // and now in the TPC...
 657
 658   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 659
 660   //---------------------------------------------------------
 661   // Tpc Inner Containment vessel - Cones
 662   //---------------------------------------------------------
 663
 664   dm[0]=0.;
 665   dm[1]=360.;
 666   dm[2]=8.;
 667
 668   //
 669
 670   dm[3]=71.8;
 671   dm[4]=56.9;
 672   dm[5]=59.4;
 673
 674   //
 675
 676   dm[6]=73.;
 677   dm[7]=56.9;
 678   dm[8]=59.4;
 679
 680   //
 681
 682   dm[9]=73.;
 683   dm[10]=56.9;
 684   dm[11]=61.2;
 685
 686   //
 687
 688   dm[12]=73.3;
 689   dm[13]=56.9;
 690   dm[14]=61.2;
 691
 692   //
 693
 694   dm[15]=73.3;
 695   dm[16]=60.9;
 696   dm[17]=61.2;
 697
 698   //
 699
 700   dm[18]=253.6;
 701   dm[19]=65.6;
 702   dm[20]=65.9;
 703
 704   //
 705
 706   dm[21]=253.6;
 707   dm[22]=65.6;
 708   dm[23]=74.6;
 709
 710   //
 711
 712   dm[24]=256.6;
 713   dm[25]=65.6;
 714   dm[26]=74.6;
 715
 716   gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27);
 717
 718   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
 719
 720   // reflection matrix
 721
 722   theta1 = 90.;
 723   phi1   = 0.;
 724   theta2 = 90.;
 725   phi2   = 270.;
 726   theta3 = 180.;
 727   phi3   = 0.;
 728
 729   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
 730
 731   gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY");
 732   gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 733
 734
 735   //---------------------------------------------------------
 736   // Tpc Inner Containment vessel - Middle part -Al
 737   //---------------------------------------------------------
 738
 739   dm[0]=0.;
 740   dm[1]=360.;
 741   dm[2]=6.;
 742
 743   //
 744
 745   dm[3]=-71.6;
 746   dm[4]=60.2;
 747   dm[5]=61.2;
 748
 749   //
 750
 751   dm[6]=-69.1;
 752   dm[7]=60.2;
 753   dm[8]=61.2;
 754
 755   //
 756
 757   dm[9]=-69.1;
 758   dm[10]=60.64;
 759   dm[11]=61.2;
 760
 761   //
 762
 763   dm[12]=69.1;
 764   dm[13]=60.64;
 765   dm[14]=61.2;
 766
 767   //
 768
 769   dm[15]=69.1;
 770   dm[16]=60.2;
 771   dm[17]=61.2;
 772
 773   //
 774
 775   dm[18]=71.6;
 776   dm[19]=60.2;
 777   dm[20]=61.2;
 778
 779   gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21);
 780
 781   // Tpc Sandwich 15 - Al
 782
 783   dm[0]=60.64;
 784   dm[1]=61.2;
 785   dm[2]=70.1;
 786
 787   gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3);
 788
 789   // Tpc Sandwich 16 -  epoxy glue
 790
 791   dm[0] += 5.e-3;
 792   dm[1] -= 5.e-3;
 793
 794   gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3);
 795
 796   // Tpc Sandwich 17 - Tedlar
 797
 798   dm[0] += 0.01;
 799   dm[1] -= 0.01;
 800
 801   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
 802
 803   // Tpc Sandwich 18 - fiber glass
 804
 805   dm[0] += 5.e-3;
 806   dm[1] -= 5.e-3;
 807
 808   gMC->Gsvolu("TS18","TUBE",idtmed[12],dm,3);
 809
 810   // Tpc Sandwich 19 - Nomex
 811
 812   dm[0] += 0.01;
 813   dm[1] -= 0.01;
 814
 815   gMC->Gsvolu("TS19","TUBE",idtmed[12],dm,3);
 816
 817   // 19->18->17->16->15-> TICM
 818
 819   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 820   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 821   gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY");
 822   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 823
 824   gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY");
 825
 826
 827   // TPc inner cont. vessel Joints
 828
 829   dm[0]=60.2;
 830   dm[1]=61.2;
 831   dm[2]=0.5;
 832
 833   gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3);
 834
 835   gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY");
 836   gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY");
 837
 838   //
 839
 840   dm[0]=0.;
 841   dm[1]=360.;
 842   dm[2]=4.;
 843
 844   //
 845
 846   dm[3]=70.8;
 847   dm[4]=58.4;
 848   dm[5]=60.1;
 849
 850   //
 851
 852   dm[6]=71.2;
 853   dm[7]=58.4;
 854   dm[8]=60.1;
 855
 856   //
 857
 858   dm[9]=71.2;
 859   dm[10]=58.4;
 860   dm[11]=59.4;
 861
 862   //
 863
 864   dm[12]=71.6;
 865   dm[13]=58.4;
 866   dm[14]=59.4;
 867
 868   gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15);
 869
 870   gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY");
 871   gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 872
 873
 874
 875   // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being)
 876
 877   dm[0]=58.4;
 878   dm[1]=61.2;
 879   dm[2]=0.1;
 880
 881   gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3);
 882
 883   gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY");
 884   gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY");
 885
 886   // TICM -> TPC
 887
 888   gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY");
 889
 890   //
 891
 892   nRotMat++; // prepare for the next rotation matrix
 893
 894   //---------------------------------------------------------
 895   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
 896   //  and its daughters (HV membrane, rods, readout chambers)
 897   //---------------------------------------------------------
 898
 899   dm[0]= 79.2;
 900   dm[1]= 258.0;
 901   dm[2]= 253.6;
 902
 903   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
 904
 905   // sector opening angles
 906
 907   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
 908   Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
 909
 910   // sector angle shift
 911
 912   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
 913
 914   // number of sectors
 915
 916   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
 917   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
 918
 919   // All above parameters are identical for inner and outer
 920   // sectors. The distinction is kept for the historical reasons
 921   // and eventually will disappear.
 922
 923   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
 924   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
 925   Float_t space;
 926
 927   //-------------------------------------------------------------------------
 928   //   Tpc Inner Readout Chambers
 929   //-------------------------------------------------------------------------
 930
 931   dm[0]= 14.483;
 932   dm[1]= 23.3345;
 933   dm[2]= 1.6; // thickness
 934   dm[3]= 25.1;
 935
 936   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
 937
 938   // this volume will be positioned in the empty space
 939   // of the end-cap to avoid overlaps
 940
 941   dm[0]= 13.7305;
 942   dm[1]= 21.1895;
 943   dm[2]= 2.25;
 944   dm[3]= 21.15;
 945
 946   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
 947
 948
 949   //------------------------------------------------
 950   // Tpc Inner readout chamber Pad Plane
 951   //------------------------------------------------
 952
 953   dm[0]= 14.483;
 954   dm[1]= 23.3345;
 955   dm[2]= 0.5;
 956   dm[3]= 25.1;
 957
 958   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
 959
 960   //
 961
 962   dm[0] -= 1.218511934;
 963   dm[1] -= 1.218511934;
 964   dm[2] = 0.35;
 965
 966   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
 967
 968   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
 969
 970   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
 971
 972
 973   //----------------------------------------------
 974   // Tpc Readout Chambers Empty spaces - for both
 975   // inner and outer sectors
 976   //----------------------------------------------
 977
 978   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
 979
 980   // Inner sector - 4 spaces
 981
 982
 983   dm[3] = 4.7625;
 984   dm[0] = 12.472;
 985
 986   Float_t rr = 90.52;
 987   Float_t zz;
 988
 989   zz= -12.7875;
 990
 991   space = rr*tanAlpha-dm[0];
 992
 993   for(Int_t nsLow=0;nsLow<4;nsLow++){
 994
 995     rr += 9.525;
 996     dm[1]= rr*tanAlpha - space;
 997
 998     dm[2]=0.8;
 999
1000     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1001
1002     //
1003
1004     dm[2] = 1.2;
1005
1006     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1007
1008     rr += 0.4;
1009     dm[0] = rr*tanAlpha - space;
1010     zz += (0.4+9.525);
1011
1012   }
1013
1014   dm[0]= 12.472;
1015   // dm[1] - this is the dm[1] from the previous TRCE
1016   dm[2]= 1.05;
1017   dm[3]= 19.65;
1018
1019   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1020
1021   //
1022   // TPc Space for Connectors
1023   //
1024
1025   dm[0]= .3;
1026   dm[1]= .3;
1027   dm[2]= 4.5;
1028
1029   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1030
1031   // TPC Connectors
1032
1033   dm[0]= .25;
1034   dm[1]= .15;
1035   dm[2]= 3.75;
1036
1037   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1038
1039   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1040
1041   zz = -12.7875;
1042
1043
1044   Float_t alpha;
1045   Float_t astep;
1046
1047   // inner part of the inner sector - 2 x 20 holes
1048
1049   astep = 20.00096874/19.;
1050
1051   alpha = 10.00048437-astep;
1052
1053   Float_t x1,x2;
1054
1055     x1 = 13.31175725;
1056     x1 -= 0.996357832;
1057
1058     x2 = 15.06180253;
1059     x2 -= 1.163028812;
1060
1061   Int_t ncon;
1062
1063   for(ncon=0;ncon<20;ncon++){
1064
1065     phi1 = 0.;
1066     theta1 = 90.+alpha;
1067     phi2=90.;
1068     theta2 = 90.;
1069     phi3 = (alpha>0) ? 0. : 180.;
1070     theta3 = TMath::Abs(alpha);
1071
1072     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1073
1074
1075
1076     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1077     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1078
1079
1080     x1 -= 1.296357833;
1081     x2 -= 1.463028812;
1082
1083     alpha -= astep;
1084     nRotMat++;
1085
1086   }
1087
1088   // outer part of the inner sector - 2 x 25 holes
1089
1090    astep = 20.00096874/24.;
1091    alpha = 10.00048437-astep;
1092
1093    x1 = 16.81184781;
1094    x1 -= 1.016295986;
1095
1096    x2 = 18.5618931;
1097    x2 -= 1.150914854;
1098
1099   for(ncon=0;ncon<25;ncon++){
1100
1101     phi1 = 0.;
1102     theta1 = 90.+alpha;
1103     phi2=90.;
1104     theta2 = 90.;
1105     phi3 = (alpha>0) ? 0. : 180.;
1106     theta3 = TMath::Abs(alpha);
1107
1108     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1109
1110
1111
1112     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1113     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1114
1115
1116     x1 -= 1.316295986;
1117     x2 -= 1.450914854;
1118
1119     alpha -= astep;
1120     nRotMat++;
1121
1122   }
1123
1124   //--------------------------------------------------------------------------
1125   //  TPC Outer Readout Chambers
1126   //  this is NOT a final design
1127   //--------------------------------------------------------------------------
1128
1129   dm[0]= 23.3875;
1130   dm[1]= 43.524;
1131   dm[2]= 1.5; //thickness
1132   dm[3]= 57.1;
1133
1134   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1135
1136   //------------------------------------------------
1137   // Tpc Outer readout chamber Pad Plane
1138   //------------------------------------------------
1139
1140   dm[2]= 0.5;
1141
1142   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1143
1144   dm[0] -= 1.218511934;
1145   dm[1] -= 1.218511934;
1146   dm[2] = 0.35;
1147
1148   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1149
1150   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1151
1152   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1153
1154   // empty space
1155
1156   dm[0]= 21.035;
1157   dm[1]= 38.7205;
1158   dm[2]= 0.7;
1159   dm[3]= 50.15;
1160
1161   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1162
1163   dm[0]= 22.2935;
1164   dm[1]= 40.5085;
1165   dm[2]= 2.25;
1166   dm[3]= 51.65;
1167
1168   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1169
1170   dm[0]= 21.35;
1171   dm[1]= 38.7205;
1172   dm[2]= 2.25;
1173   dm[3]= 50.15;
1174
1175   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1176
1177   //-----------------------------------------------
1178   // Tpc Services Support Wheel
1179   //-----------------------------------------------
1180
1181   dm[0]=0.;
1182   dm[1]=360.;
1183   dm[2]=18.;
1184   dm[3]=2.;
1185
1186   dm[4]= -5.;
1187   dm[5]= 77.017;
1188   dm[6]= 255.267;
1189
1190   dm[7]= 5.;
1191   dm[8]= dm[5];
1192   dm[9]= dm[6];
1193
1194   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1195
1196   // Tpc Services Wheel Cover
1197
1198   dm[4]= -0.5;
1199   dm[7]= 0.5;
1200
1201   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1202
1203   // Tpc Service wheel Cover Empty space
1204
1205   dm[0]= 10.99;
1206   dm[1]= 39.599;
1207   dm[2]= .5;
1208   dm[3]= 81.125;
1209
1210   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1211
1212   // Tpc services Wheel Empty Spaces
1213
1214   dm[0]= 13.18017507;
1215   dm[1]= 44.61045938;
1216   dm[2]= 4.;
1217   dm[3]= 89.125;
1218
1219   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1220
1221   // Tpc Services Wheel Bars
1222
1223   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1224
1225   // bars-> TWES
1226
1227   dm[2]= 4.;
1228   dm[3]= .4;
1229
1230   dm[0]= 13.8149522;
1231   dm[1]= 13.95601379;
1232
1233   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1234
1235   dm[0]= 43.83462067;
1236   dm[1]= 43.97568225;
1237
1238   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1239
1240   // TPc ELectronics - right now 30% X0 Si
1241
1242   dm[0]= 14.03813696;
1243   dm[1]= 43.3524075;
1244   dm[2]= 1.404;
1245   dm[3]= 83.125;
1246
1247   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1248   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1249
1250   //--------------------------------------------------------------------------
1251   //  End caps
1252   //--------------------------------------------------------------------------
1253
1254   // TPc Main Wheel - Al
1255
1256   dm[0]= 74.9;
1257   dm[1]= 264.4;
1258   dm[2]= 3.0;
1259
1260   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1261
1262   //--------------------------------------------------------------------------
1263   //  Tpc Empty Space for the Readout chambers
1264   //--------------------------------------------------------------------------
1265
1266   Float_t rLow= 86.2;
1267   Float_t rUp= 243.5;
1268   Float_t dR = 0.5*(rUp-rLow);
1269
1270   space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide
1271
1272   dm[0]= rLow*tanAlpha-space;
1273   dm[1]= rUp*tanAlpha-space;
1274   dm[2] = 3.0;
1275   dm[3]= dR;
1276
1277   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1278
1279   // TIC1->TESR
1280
1281   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1282
1283   // TOC1->TESR
1284
1285   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1286
1287   // Tpc Empty Space Bars - Al (daughters of TESR)
1288
1289   Float_t zBar;
1290
1291   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1292
1293   // lower bar
1294
1295   dm[0]= rLow*tanAlpha-space;
1296   dm[1]= 88.7*tanAlpha-space;
1297   dm[2]= 2.25;
1298   dm[3]= 1.275;
1299
1300   zBar = -dR+dm[3];
1301
1302   gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1303
1304   // middle bar
1305
1306   dm[0]= 131.65*tanAlpha-space;
1307   dm[1]= 136.5*tanAlpha-space;
1308   dm[3]= 2.425;
1309
1310   zBar = -dR +131.65+dm[3]-rLow;
1311
1312   gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1313
1314   // upper bar
1315
1316   dm[0]= 240.4*tanAlpha-space;
1317   dm[1]= rUp*tanAlpha-space;
1318   dm[3]= 1.55;
1319
1320   zBar = dR-dm[3];
1321
1322   gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1323
1324
1325   //------------------------------------------------------
1326   //  TPc Lower "S" Sectors
1327   //------------------------------------------------------
1328
1329   Float_t deadSpace;
1330
1331
1332   Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
1333   Float_t inSecUpEdge =  fTPCParam->GetInnerRadiusUp();
1334
1335   dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1336   dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1337   dm[2] = 0.5*(250. - 5.e-3);
1338   dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);
1339
1340   gMC->Gsvolu("TPLS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1341
1342   //----------------------------------------------------------
1343   //  TPc Upper Sectors
1344   //----------------------------------------------------------
1345
1346   Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
1347   Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
1348
1349   dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1350   dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1351   dm[2] = 0.5*(250. - 5.e-3);
1352   dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
1353
1354   gMC->Gsvolu("TPUS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1355
1356   //--------------------------------------------------------
1357   // TPc Sensitive Strips, the same for S and L sectors
1358   //--------------------------------------------------------
1359
1360   gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
1361
1362   Int_t nofStrips,nstr;
1363   Float_t r1,r2,zs;
1364   Float_t stripThick = 0.01; // 100 microns
1365
1366   // inner sector
1367
1368   nofStrips = fTPCParam->GetNRowLow();
1369   deadSpace = fTPCParam->GetInnerWireMount();
1370
1371   dm[2] = 0.5*(250. - 5.e-3);
1372   dm[3] = 0.5 * stripThick;
1373
1374   for(nstr=0;nstr<nofStrips;nstr++){
1375
1376     r1 = fTPCParam->GetPadRowRadiiLow(nstr);
1377     r2 = r1 + stripThick;
1378     dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1379     dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1380     zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
1381     zs += r1;
1382     zs += dm[3];
1383
1384     gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
1385
1386   }
1387
1388   Int_t nsSave = nofStrips;
1389
1390   // outer sector
1391
1392   nofStrips = fTPCParam->GetNRowUp();
1393   deadSpace = fTPCParam->GetOuterWireMount();
1394
1395   dm[2] = 0.5*(250. - 5.e-3);
1396   dm[3] = 0.5 * stripThick;
1397
1398    for(nstr=0;nstr<nofStrips;nstr++){
1399
1400     r1 = fTPCParam->GetPadRowRadiiUp(nstr);
1401     r2 = r1 + stripThick;
1402     dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1403     dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1404     zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
1405     zs += r1;
1406     zs += dm[3];
1407
1408     gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
1409
1410    }
1411
1412   //-------------------------------------------------------
1413   //  positioning of the empty spaces into the main wheel
1414   //  and readout chambers and sectors into the drift gas
1415   //-------------------------------------------------------
1416
1417
1418   Float_t rCenter,xc,yc;
1419   Float_t rInner,rOuter; // center of the inner and outer chamber
1420
1421   rCenter = rLow+dR;
1422
1423   rInner = 108.07;
1424   rOuter = 190.68;
1425
1426
1427   for(Int_t ns=0; ns<nInnerSector;ns++){
1428
1429     phi1 = ns * innerOpenAngle + innerAngleShift;
1430     phi1 *= kRaddeg; // in degrees
1431
1432     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1433
1434     if (phi1 > 360.) phi1 -= 360.;
1435
1436     theta1 = 90.;
1437     phi2   = 90.;
1438     theta2 = 180.;
1439     phi3   = ns * innerOpenAngle + innerAngleShift;
1440     phi3 *= kRaddeg; // in degrees
1441
1442     phi3 = (Float_t)TMath::Nint(phi3);
1443
1444     if(phi3 > 360.) phi3 -= 360.;
1445
1446     theta3 = 90.;
1447
1448     // "holes"->End plate
1449
1450     xc = rCenter*TMath::Cos(phi3*kDegrad);
1451     yc = rCenter*TMath::Sin(phi3*kDegrad);
1452
1453     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1454
1455     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1456
1457     // TSCE->TSWC (services wheel volumes)
1458
1459     xc = 166.142*TMath::Cos(phi3*kDegrad);
1460     yc = 166.142*TMath::Sin(phi3*kDegrad);
1461
1462     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1463     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1464
1465
1466     // readout chambers->TDGN (drift gas)
1467
1468     xc = rInner*TMath::Cos(phi3*kDegrad);
1469     yc = rInner*TMath::Sin(phi3*kDegrad);
1470
1471     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1472
1473     // here lower sectors
1474
1475     gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY");
1476     gMC->Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY");
1477
1478
1479
1480     xc = rOuter*TMath::Cos(phi3*kDegrad);
1481     yc = rOuter*TMath::Sin(phi3*kDegrad);
1482
1483     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1484
1485     // here upper sectors
1486
1487     gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY");
1488     gMC->Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY");
1489
1490
1491     nRotMat++;
1492
1493     theta2 = 0.; // reflection
1494
1495     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1496
1497     xc = rInner*TMath::Cos(phi3*kDegrad);
1498     yc = rInner*TMath::Sin(phi3*kDegrad);
1499
1500     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1501
1502     xc = rOuter*TMath::Cos(phi3*kDegrad);
1503     yc = rOuter*TMath::Sin(phi3*kDegrad);
1504
1505     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1506
1507     nRotMat++;
1508
1509   }
1510   // TPMW->TPC
1511
1512   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1513   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY");
1514
1515   //---------------------------------------------------------
1516   //  Tpc High Voltage Membrane - 100 microns of mylar
1517   //---------------------------------------------------------
1518
1519   dm[0]=82.8;
1520   dm[1]=252.;
1521   dm[2]=0.005;
1522
1523   gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3);
1524
1525   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1526
1527   // Tpc High Voltage membrane Holders
1528
1529   gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0);
1530
1531
1532
1533   // inner
1534
1535   dm[0]=79.3;
1536   dm[1]=82.8;
1537   dm[2]=0.2;
1538
1539   gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1540
1541   // outer
1542
1543   dm[0]= 252.;
1544   dm[1]= 257.9;
1545   dm[2]= 0.4;
1546
1547   gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1548
1549   //----------------------------------------------------------
1550   // TPc Support Rods - MAKROLON
1551   //----------------------------------------------------------
1552
1553   dm[0]= 0.9;
1554   dm[1]= 1.2;
1555
1556   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ
1557
1558
1559   for(Int_t nrod=0;nrod<18;nrod++){
1560     Float_t angle=innerOpenAngle*(Float_t)nrod;
1561
1562     xc=81.5*TMath::Cos(angle);
1563     yc=81.5*TMath::Sin(angle);
1564
1565     dm[2]=126.7;
1566
1567     gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3);
1568     gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3);
1569
1570     dm[2]=126.6;
1571
1572     xc=254.25*TMath::Cos(angle);
1573     yc=254.25*TMath::Sin(angle);
1574
1575     // rod number 54 contans the HV cable
1576
1577     if(nrod<17) {
1578       gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3);
1579       gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3);
1580     }
1581
1582   }
1583
1584   //----------------------------------------------------------
1585   // Tpc High Voltage Rod - MAKROLON + Copper cable
1586   //----------------------------------------------------------
1587
1588   // rod with cable (Left)
1589
1590   dm[0]=0.;
1591   dm[1]=2.25;
1592   dm[2]=126.6;
1593
1594   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1595
1596   // HV cable
1597
1598   dm[0]=0.;
1599   dm[1]=0.3;
1600   dm[2]=126.6;
1601
1602   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1603
1604   // empty space
1605
1606   dm[0]=0.3;
1607   dm[1]=1.;
1608   dm[2]=126.6;
1609
1610   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1611
1612   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1613   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1614
1615   // rod without cable
1616
1617   dm[0]=1.8;
1618   dm[1]=2.25;
1619   dm[2]=126.6;
1620
1621   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1622
1623   gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY");
1624   gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY");
1625
1626   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1627
1628   // services wheel cover -> wheel
1629
1630
1631   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1632   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1633
1634
1635   // put the wheel into the TPC
1636
1637   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1638   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1639
1640   //
1641
1642   gMC->Gsord("TPMW",6);
1643   gMC->Gsord("TSSW",6);
1644   gMC->Gsord("TSWC",6);
1645   gMC->Gsord("TPLS",3);
1646   gMC->Gsord("TPUS",3);
1647   gMC->Gsord("TDGN",6);
1648
1649
1650   // put the TPC into ALIC (main mother volume)
1651
1652   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1653
1654
1655
1656 } // end of function
1657
1658 //_____________________________________________________________________________
1659 void AliTPCv1::DrawDetector()
1660 {
1661   //
1662   // Draw a shaded view of the Time Projection Chamber version 1
1663   //
1664
1665   // Set everything unseen
1666   gMC->Gsatt("*", "seen", -1);
1667   //
1668   // Set ALIC mother transparent
1669   gMC->Gsatt("ALIC","SEEN",0);
1670   //
1671   // Set the volumes visible
1672   gMC->Gsatt("TPC ","SEEN",0);
1673   gMC->Gsatt("TOIN","SEEN",1);
1674   gMC->Gsatt("TOIN","COLO",7);
1675   gMC->Gsatt("TOCV","SEEN",1);
1676   gMC->Gsatt("TOCV","COLO",4);
1677   gMC->Gsatt("TSA1","SEEN",0);
1678   gMC->Gsatt("TSA2","SEEN",0);
1679   gMC->Gsatt("TSA3","SEEN",0);
1680   gMC->Gsatt("TSA4","SEEN",0);
1681   gMC->Gsatt("TSA5","SEEN",0);
1682   gMC->Gsatt("TOFC","SEEN",1);
1683   gMC->Gsatt("TOFC","COLO",4);
1684   gMC->Gsatt("TSA6","SEEN",0);
1685   gMC->Gsatt("TSA7","SEEN",0);
1686   gMC->Gsatt("TSA8","SEEN",0);
1687   gMC->Gsatt("TIIN","SEEN",1);
1688   gMC->Gsatt("TIIN","COLO",7);
1689   gMC->Gsatt("TII1","SEEN",0);
1690   gMC->Gsatt("TIFC","SEEN",1);
1691   gMC->Gsatt("TIFC","COLO",4);
1692   gMC->Gsatt("TSA9","SEEN",0);
1693   gMC->Gsatt("TS10","SEEN",0);
1694   gMC->Gsatt("TS11","SEEN",0);
1695   gMC->Gsatt("TS12","SEEN",0);
1696   gMC->Gsatt("TS13","SEEN",0);
1697   gMC->Gsatt("TS14","SEEN",0);
1698   gMC->Gsatt("TICC","SEEN",0);
1699   gMC->Gsatt("TICM","SEEN",0);
1700   gMC->Gsatt("TS15","SEEN",0);
1701   gMC->Gsatt("TS16","SEEN",0);
1702   gMC->Gsatt("TS17","SEEN",0);
1703   gMC->Gsatt("TS18","SEEN",0);
1704   gMC->Gsatt("TS19","SEEN",0);
1705   gMC->Gsatt("TPJ1","SEEN",0);
1706   gMC->Gsatt("TPJ2","SEEN",0);
1707   gMC->Gsatt("TICS","SEEN",0);
1708   gMC->Gsatt("TDGN","SEEN",0);
1709   gMC->Gsatt("TIRC","SEEN",0);
1710   gMC->Gsatt("TIC1","SEEN",1);
1711   gMC->Gsatt("TIPP","SEEN",0);
1712   gMC->Gsatt("TIC3","SEEN",0);
1713   gMC->Gsatt("TRCE","SEEN",0);
1714   gMC->Gsatt("TPSC","SEEN",0);
1715   gMC->Gsatt("TPCC","SEEN",0);
1716   gMC->Gsatt("TORC","SEEN",0);
1717   gMC->Gsatt("TOPP","SEEN",0);
1718   gMC->Gsatt("TOC3","SEEN",0);
1719   gMC->Gsatt("TOC1","SEEN",1);
1720   gMC->Gsatt("TSSW","SEEN",1);
1721   gMC->Gsatt("TSWC","SEEN",1);
1722   gMC->Gsatt("TSSW","COLO",3);
1723   gMC->Gsatt("TSWC","COLO",3);
1724   gMC->Gsatt("TSCE","COLO",6);
1725   gMC->Gsatt("TSCE","SEEN",1);
1726   gMC->Gsatt("TWES","SEEN",0);
1727   gMC->Gsatt("TSWB","SEEN",0);
1728   gMC->Gsatt("TPEL","SEEN",0);
1729   gMC->Gsatt("TPMW","SEEN",1);
1730   gMC->Gsatt("TESR","SEEN",1);
1731   gMC->Gsatt("TPMW","COLO",12);
1732   gMC->Gsatt("TIC1","COLO",5);
1733   gMC->Gsatt("TOC1","COLO",5);
1734   gMC->Gsatt("TESB","SEEN",0);
1735   gMC->Gsatt("THVM","SEEN",1);
1736   gMC->Gsatt("THVM","COLO",11);
1737   gMC->Gsatt("THVH","SEEN",0);
1738   gMC->Gsatt("TPSR","SEEN",0);
1739   gMC->Gsatt("THVL","SEEN",0);
1740   gMC->Gsatt("THVC","SEEN",0);
1741   gMC->Gsatt("THVE","SEEN",0);
1742   gMC->Gsatt("THVR","SEEN",0);
1743   gMC->Gsatt("TPSS","SEEN",0);
1744   gMC->Gsatt("TPUS","SEEN",0);
1745   gMC->Gsatt("TPLS","SEEN",0);
1746
1747   //
1748   gMC->Gdopt("hide", "on");
1749   gMC->Gdopt("shad", "on");
1750   gMC->Gsatt("*", "fill", 7);
1751   gMC->SetClipBox(".");
1752   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1753   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1754   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1755   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1756   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1757   gMC->DefaultRange();
1758   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1759   gMC->Gdhead(1111, "Time Projection Chamber");
1760   gMC->Gdman(18, 4, "MAN");
1761   gMC->Gdopt("hide","off");
1762 }
1763
1764 //_____________________________________________________________________________
1765 void AliTPCv1::CreateMaterials()
1766 {
1767   //
1768   // Define materials for Time Projection Chamber
1769   //
1770   AliTPC::CreateMaterials();
1771 }
1772
1773 //_____________________________________________________________________________
1774 void AliTPCv1::Init()
1775 {
1776   //
1777   // Initialises TPC detector after it has been created
1778   //
1779
1780   fIdSens=gMC->VolId("TPSS"); // sensitive strip
1781   fIdLSec=gMC->VolId("TPLS"); // lower sector
1782   fIdUSec=gMC->VolId("TPUS"); // upper sector
1783
1784   printf("TPC version 1 initialized\n");
1785 }
1786
1787 //_____________________________________________________________________________
1788 void AliTPCv1::StepManager()
1789 {
1790   //
1791   // Called at every step in the Time Projection Chamber
1792   //
1793   Int_t         copy, id, i;
1794   Float_t       hits[4];
1795   Int_t         vol[2];
1796   TLorentzVector p;
1797  //
1798
1799   if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1800
1801     //
1802     // Only charged tracks entering the sensitive volume
1803     //
1804
1805     id = gMC->CurrentVolID(copy);
1806
1807     if(id == fIdSens){
1808
1809       // sensitive volume (strip)
1810
1811       vol[1]= copy-1; // row number (absolute)
1812
1813       // sector type
1814
1815       id = gMC->CurrentVolOffID(1,copy);
1816
1817       if(id == fIdLSec){
1818
1819         // lower sector
1820
1821         vol[0] = copy-1; // sector number
1822
1823       }
1824       else {
1825
1826         // upper sector
1827
1828         vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
1829         vol[1] -= fTPCParam->GetNRowLow(); // row number
1830
1831       }
1832
1833       if(vol[1] == 0){
1834
1835         // because Jouri wants to have this
1836
1837         gMC->TrackMomentum(p);
1838         hits[0]=p[0];
1839         hits[1]=p[1];
1840         hits[2]=p[2];
1841         hits[3]=0.; // this hit has no energy loss
1842         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1843
1844         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1845
1846         gMC->TrackPosition(p);
1847         hits[0]=p[0];
1848         hits[1]=p[1];
1849         hits[2]=p[2];
1850         hits[3]=0.; // this hit has no energy loss
1851         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1852
1853         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1854
1855       }
1856
1857       gMC->TrackPosition(p);
1858       for(i=0;i<3;++i) hits[i]=p[i];
1859       hits[3]=1; //I'd like to have something positive here (I.Belikov)
1860       // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1861
1862       AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1863
1864     }
1865
1866   }
1867
1868 }
1869 //_____________________________________________________________________________
1870
1871
1872