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 1.30  2001/06/12 07:07:41  kowal2
  19 New files for folder and stack
  20
  21 Revision 1.29  2001/05/08 16:03:06  kowal2
  22 Geometry update according to the latest technical spec.
  23
  24 Revision 1.28  2001/04/27 15:23:07  kowal2
  25 Correct materian in the central part of the inner containment vessel
  26
  27 Revision 1.27  2001/04/26 06:15:12  kowal2
  28 Corrected bug in the inner containment vessel (cones)
  29
  30 Revision 1.26  2001/04/24 11:17:33  kowal2
  31 New TPC geometry.
  32
  33 Revision 1.25  2001/03/13 13:07:34  kowal2
  34 Corrected bug in the TPC mother volume geometry.
  35 Thanks to A. Morsch
  36
  37 Revision 1.24  2000/11/30 11:48:50  kowal2
  38 TLorentzVector.h adde to satisfy the latest changes by Federico
  39
  40 Revision 1.23  2000/11/14 10:48:57  kowal2
  41 Correct material used for TSA4. Thanks to J. Barbosa.
  42
  43 Revision 1.22  2000/11/06 17:24:10  kowal2
  44 Corrected bug in the outer containment vessel and
  45 the outer field cage geometry.
  46 Thanks to J. Barbosa.
  47
  48 Revision 1.21  2000/11/02 16:55:24  kowal2
  49 Corrected bug in the inner containment vessel geometry.
  50 Thanks to J. Belikov
  51
  52 Revision 1.20  2000/11/02 07:24:11  kowal2
  53 Correction in the TPC geometry.
  54 Changes due to the new hit structure.
  55
  56 Revision 1.19  2000/07/10 20:57:39  hristov
  57 Update of TPC code and macros by M.Kowalski
  58
  59 Revision 1.18  2000/06/30 12:07:50  kowal2
  60 Updated from the TPC-PreRelease branch
  61
  62 Revision 1.17.2.4  2000/06/26 07:39:42  kowal2
  63 Changes to obey the coding rules
  64
  65 Revision 1.17.2.3  2000/06/25 08:38:41  kowal2
  66 Splitted from AliTPCtracking
  67
  68 Revision 1.17.2.2  2000/06/16 12:58:13  kowal2
  69 Changed parameter settings
  70
  71 Revision 1.17.2.1  2000/06/09 07:15:07  kowal2
  72
  73 Defaults loaded automatically (hard-wired)
  74 Optional parameters can be set via macro called in the constructor
  75
  76 Revision 1.17  2000/05/15 10:00:30  kowal2
  77 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
  78
  79 Revision 1.16  2000/04/17 09:37:33  kowal2
  80 removed obsolete AliTPCDigitsDisplay.C
  81
  82 Revision 1.15.8.2  2000/04/10 08:29:48  kowal2
  83
  84 Different pad geometry for different sectors
  85 Updated readouch chambers geometry
  86
  87 Revision 1.15.8.1  2000/04/10 07:56:53  kowal2
  88 Not used anymore - removed
  89
  90 Revision 1.15  1999/11/04 17:28:07  fca
  91 Correct barrel part of HV Degrader
  92
  93 Revision 1.14  1999/10/08 06:27:23  fca
  94 Corrected bug in the HV degrader geometry, thanks to G.Tabary
  95
  96 Revision 1.13  1999/10/04 13:39:54  fca
  97 Correct array index problem
  98
  99 Revision 1.12  1999/09/29 09:24:34  fca
 100 Introduction of the Copyright and cvs Log
 101
 102 */
 103
 104 //
 105 ///////////////////////////////////////////////////////////////////////////////
 106 //                                                                           //
 107 //  Time Projection Chamber version 1 -- detailed TPC and fast simulation    //
 108 //                                                                           //
 109 //Begin_Html
 110 /*
 111 <img src="picts/AliTPCv1Class.gif">
 112 */
 113 //End_Html
 114 //                                                                           //
 115 //                                                                           //
 116 ///////////////////////////////////////////////////////////////////////////////
 117
 118 #include <TMath.h>
 119 #include <TGeometry.h>
 120 #include <TNode.h>
 121 #include <TBRIK.h>
 122 #include <TTUBE.h>
 123 #include "AliTPCv1.h"
 124 #include "AliRun.h"
 125 #include <Riostream.h>
 126 #include <Riostream.h>
 127 #include "TLorentzVector.h"
 128
 129 #include "AliMC.h"
 130 #include "AliConst.h"
 131
 132 #include "AliTPCParam.h"
 133 #include "AliTPCParamSR.h"
 134 #include "AliTPCDigitsArray.h"
 135 #include <TInterpreter.h>
 136
 137 ClassImp(AliTPCv1)
 138
 139 //_____________________________________________________________________________
 140
 141   AliTPCv1::AliTPCv1(){
 142
 143   fHitType = 1;
 144
 145 }
 146
 147 //_____________________________________________________________________________
 148 AliTPCv1::AliTPCv1(const char *name, const char *title)
 149   :AliTPC(name, title) {
 150   //
 151   // Standard constructor for Time Projection Chamber
 152   //
 153   fIdSens=fIdLSec=fIdUSec=0;
 154
 155   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
 156
 157   if (fTPCParam)
 158      fTPCParam->Write(fTPCParam->GetTitle());
 159
 160   fHitType=1;
 161 }
 162
 163 //_____________________________________________________________________________
 164 void AliTPCv1::CreateGeometry()
 165 {
 166   //-------------------------------------------------------------
 167   // Creates geometry for Time Projection Chamber version 1
 168   // Detailed geometry -- Fast simulation - space points
 169   // at the pad-rows centers
 170   // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
 171   //-----------------------------------------------------------
 172
 173   //Begin_Html
 174   /*
 175     <img src="picts/AliTPC.gif">
 176   */
 177   //End_Html
 178   //Begin_Html
 179   /*
 180     <img src="picts/AliTPCv1Tree.gif">
 181   */
 182   //End_Html
 183   Float_t dm[50];
 184
 185   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
 186
 187   Int_t idrotm[120]; // rotation matrices
 188
 189   Int_t nRotMat = 0; // actual number of rotation matrices
 190
 191   //
 192   //  Mother volume TPC (Air) - all volumes will be positioned in it
 193   //
 194
 195   dm[0]=0.;
 196   dm[1]=360.;
 197   dm[2]=8.;
 198
 199   //
 200
 201   dm[3]=-283.7;
 202   dm[4]=65.6;
 203   dm[5]=278.;
 204
 205   //
 206
 207   dm[6]=-253.6;
 208   dm[7]=65.6;
 209   dm[8]=278.;
 210
 211   //
 212
 213   dm[9]=-73.3;
 214   dm[10]=60.9;
 215   dm[11]=278.;
 216
 217   //
 218
 219   dm[12]=-73.3;
 220   dm[13]=56.9;
 221   dm[14]=278.;
 222
 223   //
 224
 225   dm[15]=73.3;
 226   dm[16]=56.9;
 227   dm[17]=278.;
 228
 229   //
 230
 231   dm[18]=73.3;
 232   dm[19]=60.9;
 233   dm[20]=278.;
 234
 235   //
 236
 237   dm[21]=253.6;
 238   dm[22]=65.6;
 239   dm[23]=278.;
 240
 241   //
 242
 243   dm[24]=283.7;
 244   dm[25]=65.6;
 245   dm[26]=278.;
 246
 247   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,27);
 248
 249   // outer part
 250
 251   //-------------------------------------------------------------------
 252   //   Tpc Outer INsulator (CO2) - contains cont. vessel and field cage
 253   //-------------------------------------------------------------------
 254
 255   dm[0]= 0.;
 256   dm[1]= 360.;
 257   dm[2]= 6.;
 258
 259   //
 260
 261   dm[3]=-253.6;
 262   dm[4]=258.;
 263   dm[5]=275.5;
 264
 265   //
 266
 267   dm[6]=-250.6;
 268   dm[7]=258.;
 269   dm[8]=275.5;
 270
 271   //
 272
 273   dm[9]=-250.6;
 274   dm[10]=258.;
 275   dm[11]=278.;
 276
 277   //
 278
 279   dm[12]=253.6;
 280   dm[13]=258.;
 281   dm[14]=278.;
 282
 283   //
 284
 285   dm[15]=253.6;
 286   dm[16]=264.8;
 287   dm[17]=278.;
 288
 289   //
 290
 291   dm[18]=256.6;
 292   dm[19]=264.8;
 293   dm[20]=278.;
 294
 295   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
 296
 297   //----------------------------------------------------------------
 298   // Tpc Outer Contaiment Vessel
 299   //  mother volume - Al, daughters - composite (sandwich)
 300   //----------------------------------------------------------------
 301
 302   dm[0]=0.;
 303   dm[1]=360.;
 304   dm[2]=6.;
 305
 306   //
 307
 308   dm[3]=-250.6;
 309   dm[4]=270.4;
 310   dm[5]=278.;
 311
 312   //
 313
 314   dm[6]=-247.6;
 315   dm[7]=270.4;
 316   dm[8]=278.;
 317
 318   //
 319
 320   dm[9]=-247.6;
 321   dm[10]=274.8124;
 322   dm[11]=278.;
 323
 324   //
 325
 326   dm[12]=253.6;
 327   dm[13]=274.8124;
 328   dm[14]=278.;
 329
 330   //
 331
 332   dm[15]=253.6;
 333   dm[16]=264.8;
 334   dm[17]=278.;
 335
 336   //
 337
 338   dm[18]=256.6;
 339   dm[19]=264.8;
 340   dm[20]=278.;
 341
 342   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
 343
 344   // Daughter volumes - sandwich
 345
 346   // Tpc SAndwich 1 - Al
 347
 348   dm[0]=274.8124;
 349   dm[1]=278.;
 350   dm[2]=252.1;
 351
 352   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
 353
 354   // Tpc SAndwich 2 - epoxy glue (I use Lexan)
 355
 356   dm[0] += 5.e-3;
 357   dm[1] -= 5.e-3;
 358
 359   gMC->Gsvolu("TSA2","TUBE",idtmed[14],dm,3);
 360
 361   // Tpc SAndwich 3 - Tedlar
 362
 363   dm[0] += 0.01;
 364   dm[1] -= 0.01;
 365
 366   gMC->Gsvolu("TSA3","TUBE",idtmed[9],dm,3);
 367
 368
 369   // Tpc SAndwich 4 - fiber glass (G10)
 370
 371   dm[0] += 3.8e-3;
 372   dm[1] -= 3.8e-3;
 373
 374   gMC->Gsvolu("TSA4","TUBE",idtmed[12],dm,3);
 375
 376   // Tpc SAndwich 5 - NOMEX honeycomb
 377
 378   dm[0] += 0.075;
 379   dm[1] -= 0.075;
 380
 381   gMC->Gsvolu("TSA5","TUBE",idtmed[6],dm,3);
 382
 383   // 5->4->3->2->1->TCOV
 384
 385
 386   gMC->Gspos("TSA5",1,"TSA4",0.,0.,0.,0,"ONLY");
 387   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
 388   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
 389   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
 390
 391   gMC->Gspos("TSA1",1,"TOCV",0.,0.,3.,0,"ONLY");
 392
 393   // TCOV-> TOIN
 394
 395   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
 396
 397   //-------------------------------------------------------
 398   //  Tpc Outer Field Cage
 399   //  mother volume - Al, daughters - composite (sandwich)
 400   //-------------------------------------------------------
 401
 402   dm[0]=0.;
 403   dm[1]=360.;
 404   dm[2]=6.;
 405
 406   //
 407
 408   dm[3]=-253.6;
 409   dm[4]=258.;
 410   dm[5]=275.5;
 411
 412   //
 413
 414   dm[6]=-250.6;
 415   dm[7]=258.;
 416   dm[8]=275.5;
 417
 418   //
 419
 420   dm[9]=-250.6;
 421   dm[10]=258.;
 422   dm[11]=260.0476;
 423
 424   //
 425
 426   dm[12]=250.6;
 427   dm[13]=258.;
 428   dm[14]=260.0476;
 429
 430   //
 431
 432   dm[15]=250.6;
 433   dm[16]=258.;
 434   dm[17]=275.5;
 435
 436   //
 437
 438   dm[18]=253.6;
 439   dm[19]=258.;
 440   dm[20]=275.5;
 441
 442   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);
 443
 444   // Daughter volumes
 445
 446   // Tpc SAndwich 6 - Tedlar
 447
 448   dm[0]= 258.;
 449   dm[1]= 260.0476;
 450   dm[2]= 252.1;
 451
 452   gMC->Gsvolu("TSA6","TUBE",idtmed[9],dm,3);
 453
 454   // Tpc SAndwich 7 - fiber glass
 455
 456   dm[0] += 3.8e-3;
 457   dm[1] -= 3.8e-3;
 458
 459   gMC->Gsvolu("TSA7","TUBE",idtmed[12],dm,3);
 460
 461
 462   // Tpc SAndwich 8 - NOMEX
 463
 464   dm[0] += 0.02;
 465   dm[1] -= 0.02;
 466
 467   gMC->Gsvolu("TSA8","TUBE",idtmed[6],dm,3);
 468
 469   // 8->7->6->TOFC
 470
 471   gMC->Gspos("TSA8",1,"TSA7",0.,0.,0.,0,"ONLY");
 472   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
 473   gMC->Gspos("TSA6",1,"TOFC",0.,0.,0.,0,"ONLY");
 474
 475   // TOFC->TOIN
 476
 477   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY");
 478
 479   // TOIN->TPC
 480
 481   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 482
 483   // inner part
 484
 485   //--------------------------------------------------------------------
 486   // Tpc Inner INsulator (CO2) - inner f.c. will be placed there
 487   // Inner containment vessel will be placed directly in the TPC
 488   //--------------------------------------------------------------------
 489
 490   dm[0]=0.;
 491   dm[1]=360.;
 492   dm[2]=4.;
 493
 494   //
 495
 496   dm[3]=-253.6;
 497   dm[4]=65.9;
 498   dm[5]=79.2;
 499
 500   //
 501
 502   dm[6]=-73.3;
 503   dm[7]=61.2;
 504   dm[8]=79.2;
 505
 506   //
 507
 508   dm[9]=73.3;
 509   dm[10]=61.2;
 510   dm[11]=79.2;
 511
 512   //
 513
 514   dm[12]=253.6;
 515   dm[13]=65.9;
 516   dm[14]=79.2;
 517
 518   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,15);
 519
 520   // the middle part of the F.C. is thinner - carve out the strip - Ne-CO2
 521
 522   dm[0]=79.16;
 523   dm[1]=79.2;
 524   dm[2]=88.;
 525
 526   gMC->Gsvolu("TII1","TUBE",idtmed[1],dm,3);
 527
 528   gMC->Gspos("TII1",1,"TIIN",0.,0.,0.,0,"ONLY");
 529
 530   //-----------------------------------------------------
 531   // Tpc Inner Field Cage
 532   // mother volume - Al, daughters - composite (sandwich)
 533   //------------------------------------------------------
 534
 535   dm[0]=0.;
 536   dm[1]=360.;
 537   dm[2]=10.;
 538
 539   //
 540
 541   dm[3]=-253.6;
 542   dm[4]=70.3;
 543   dm[5]=79.2;
 544
 545   //
 546
 547   dm[6]=-250.6;
 548   dm[7]=70.3;
 549   dm[8]=79.2;
 550
 551   //
 552
 553   dm[9]=-250.6;
 554   dm[10]=77.0524;
 555   dm[11]=79.2;
 556
 557   //
 558
 559   dm[12]=-88.;
 560   dm[13]=77.0524;
 561   dm[14]=79.2;
 562
 563   //
 564
 565   dm[15]=-88.;
 566   dm[16]=77.0924;
 567   dm[17]=79.16;
 568
 569   //
 570
 571   dm[18]=88.;
 572   dm[19]=77.0924;
 573   dm[20]=79.16;
 574
 575   //
 576
 577   dm[21]=88.;
 578   dm[22]=77.0524;
 579   dm[23]=79.2;
 580
 581   //
 582
 583   dm[24]=250.6;
 584   dm[25]=77.0524;
 585   dm[26]=79.2;
 586
 587   //
 588
 589   dm[27]=250.6;
 590   dm[28]=70.3;
 591   dm[29]=79.2;
 592
 593   //
 594
 595   dm[30]=253.6;
 596   dm[31]=70.3;
 597   dm[32]=79.2;
 598
 599   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,33);
 600
 601   // daughter volumes - central part
 602
 603   // Tpc Sandwich 9 -Tedlar
 604
 605   dm[0]=77.0924;
 606   dm[1]=79.16;
 607   dm[2]=88.;
 608
 609   gMC->Gsvolu("TSA9","TUBE",idtmed[9],dm,3);
 610
 611   // Tpc Sandwich 10 - fiber glass (G10)
 612
 613   dm[0] += 3.8e-3;
 614   dm[1] -= 3.8e-3;
 615
 616   gMC->Gsvolu("TS10","TUBE",idtmed[12],dm,3);
 617
 618   // Tpc Sandwich 11 - NOMEX
 619
 620   dm[0] += 0.03;
 621   dm[1] -= 0.03;
 622
 623   gMC->Gsvolu("TS11","TUBE",idtmed[6],dm,3);
 624
 625   // 11->10->9->TIFC
 626
 627   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
 628   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
 629
 630   gMC->Gspos("TSA9",1,"TIFC",0.,0.,0.,0,"ONLY");
 631
 632   // daughter volumes - outer parts (reinforced)
 633
 634   // Tpc Sandwich 12 -Tedlar
 635
 636   dm[0]=77.0524;
 637   dm[1]=79.2;
 638   dm[2]=82.05;
 639
 640   gMC->Gsvolu("TS12","TUBE",idtmed[9],dm,3);
 641
 642   // Tpc Sandwich 13 - fiber glass (G10)
 643
 644   dm[0] += 3.8e-3;
 645   dm[1] -= 3.8e-3;
 646
 647   gMC->Gsvolu("TS13","TUBE",idtmed[12],dm,3);
 648
 649   // Tpc Sandwich 14 - NOMEX
 650
 651   dm[0] += 0.07;
 652   dm[1] -= 0.07;
 653
 654   gMC->Gsvolu("TS14","TUBE",idtmed[6],dm,3);
 655
 656   // 14->13->12->TIFC
 657
 658   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
 659   gMC->Gspos("TS13",1,"TS12",0.,0.,0.,0,"ONLY");
 660
 661   gMC->Gspos("TS12",1,"TIFC",0.,0.,170.05,0,"ONLY");
 662   gMC->Gspos("TS12",2,"TIFC",0.,0.,-170.05,0,"ONLY");
 663
 664   // place this inside the inner insulator
 665
 666   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
 667
 668   // and now in the TPC...
 669
 670   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
 671
 672   //---------------------------------------------------------
 673   // Tpc Inner Containment vessel - Cones
 674   //---------------------------------------------------------
 675
 676   dm[0]=0.;
 677   dm[1]=360.;
 678   dm[2]=8.;
 679
 680   //
 681
 682   dm[3]=71.8;
 683   dm[4]=56.9;
 684   dm[5]=59.4;
 685
 686   //
 687
 688   dm[6]=73.;
 689   dm[7]=56.9;
 690   dm[8]=59.4;
 691
 692   //
 693
 694   dm[9]=73.;
 695   dm[10]=56.9;
 696   dm[11]=61.2;
 697
 698   //
 699
 700   dm[12]=73.3;
 701   dm[13]=56.9;
 702   dm[14]=61.2;
 703
 704   //
 705
 706   dm[15]=73.3;
 707   dm[16]=60.9;
 708   dm[17]=61.2;
 709
 710   //
 711
 712   dm[18]=253.6;
 713   dm[19]=65.6;
 714   dm[20]=65.9;
 715
 716   //
 717
 718   dm[21]=253.6;
 719   dm[22]=65.6;
 720   dm[23]=74.6;
 721
 722   //
 723
 724   dm[24]=256.6;
 725   dm[25]=65.6;
 726   dm[26]=74.6;
 727
 728   gMC->Gsvolu("TICC","PCON",idtmed[4],dm,27);
 729
 730   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
 731
 732   // reflection matrix
 733
 734   theta1 = 90.;
 735   phi1   = 0.;
 736   theta2 = 90.;
 737   phi2   = 270.;
 738   theta3 = 180.;
 739   phi3   = 0.;
 740
 741   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
 742
 743   gMC->Gspos("TICC",1,"TPC ",0.,0.,0.,0,"ONLY");
 744   gMC->Gspos("TICC",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 745
 746
 747   //---------------------------------------------------------
 748   // Tpc Inner Containment vessel - Middle part -Al
 749   //---------------------------------------------------------
 750
 751   dm[0]=0.;
 752   dm[1]=360.;
 753   dm[2]=6.;
 754
 755   //
 756
 757   dm[3]=-71.6;
 758   dm[4]=60.2;
 759   dm[5]=61.2;
 760
 761   //
 762
 763   dm[6]=-69.1;
 764   dm[7]=60.2;
 765   dm[8]=61.2;
 766
 767   //
 768
 769   dm[9]=-69.1;
 770   dm[10]=60.6224;
 771   dm[11]=61.2;
 772
 773   //
 774
 775   dm[12]=69.1;
 776   dm[13]=60.6224;
 777   dm[14]=61.2;
 778
 779   //
 780
 781   dm[15]=69.1;
 782   dm[16]=60.2;
 783   dm[17]=61.2;
 784
 785   //
 786
 787   dm[18]=71.6;
 788   dm[19]=60.2;
 789   dm[20]=61.2;
 790
 791   gMC->Gsvolu("TICM","PCON",idtmed[4],dm,21);
 792
 793   // Tpc Sandwich 15 - Al
 794
 795   dm[0]=60.6224;
 796   dm[1]=61.2;
 797   dm[2]=70.1;
 798
 799   gMC->Gsvolu("TS15","TUBE",idtmed[4],dm,3);
 800
 801   // Tpc Sandwich 16 -  epoxy glue
 802
 803   dm[0] += 5.e-3;
 804   dm[1] -= 5.e-3;
 805
 806   gMC->Gsvolu("TS16","TUBE",idtmed[14],dm,3);
 807
 808   // Tpc Sandwich 17 - Tedlar
 809
 810   dm[0] += 0.01;
 811   dm[1] -= 0.01;
 812
 813   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
 814
 815   // Tpc Sandwich 18 - carbon fiber
 816
 817   dm[0] += 3.8e-3;
 818   dm[1] -= 3.8e-3;
 819
 820   gMC->Gsvolu("TS18","TUBE",idtmed[15],dm,3);
 821
 822   // Tpc Sandwich 19 - Nomex
 823
 824   dm[0] += 0.02;
 825   dm[1] -= 0.02;
 826
 827   gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
 828
 829   // 19->18->17->16->15-> TICM
 830
 831   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
 832   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
 833   gMC->Gspos("TS17",1,"TS16",0.,0.,0.,0,"ONLY");
 834   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
 835
 836   gMC->Gspos("TS15",1,"TICM ",0.,0.,0.,0,"ONLY");
 837
 838
 839   // TPc inner cont. vessel Joints
 840
 841   dm[0]=60.2;
 842   dm[1]=61.2;
 843   dm[2]=0.5;
 844
 845   gMC->Gsvolu("TPJ1","TUBE",idtmed[4],dm,3);
 846
 847   gMC->Gspos("TPJ1",1,"TPC ",0.,0.,72.3,0,"ONLY");
 848   gMC->Gspos("TPJ1",2,"TPC ",0.,0.,-72.3,0,"ONLY");
 849
 850   //
 851
 852   dm[0]=0.;
 853   dm[1]=360.;
 854   dm[2]=4.;
 855
 856   //
 857
 858   dm[3]=70.8;
 859   dm[4]=58.4;
 860   dm[5]=60.1;
 861
 862   //
 863
 864   dm[6]=71.2;
 865   dm[7]=58.4;
 866   dm[8]=60.1;
 867
 868   //
 869
 870   dm[9]=71.2;
 871   dm[10]=58.4;
 872   dm[11]=59.4;
 873
 874   //
 875
 876   dm[12]=71.6;
 877   dm[13]=58.4;
 878   dm[14]=59.4;
 879
 880   gMC->Gsvolu("TPJ2","PCON",idtmed[4],dm,15);
 881
 882   gMC->Gspos("TPJ2",1,"TPC ",0.,0.,0.,0,"ONLY");
 883   gMC->Gspos("TPJ2",2,"TPC ",0.,0.,0.,idrotm[nRotMat],"ONLY");
 884
 885
 886
 887   // Tpc Inner Containment vessel Seal (Viton, I use Lexan for a time being)
 888
 889   dm[0]=58.4;
 890   dm[1]=61.2;
 891   dm[2]=0.1;
 892
 893   gMC->Gsvolu("TICS","TUBE",idtmed[14],dm,3);
 894
 895   gMC->Gspos("TICS",1,"TPC ",0.,0.,71.7,0,"ONLY");
 896   gMC->Gspos("TICS",2,"TPC ",0.,0.,-71.7,0,"ONLY");
 897
 898   // TICM -> TPC
 899
 900   gMC->Gspos("TICM",1,"TPC ",0.,0.,0.,0,"ONLY");
 901
 902   //
 903
 904   nRotMat++; // prepare for the next rotation matrix
 905
 906   //---------------------------------------------------------
 907   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
 908   //  and its daughters (HV membrane, rods, readout chambers)
 909   //---------------------------------------------------------
 910
 911   dm[0]= 79.2;
 912   dm[1]= 258.0;
 913   dm[2]= 253.6;
 914
 915   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);
 916
 917   // sector opening angles
 918
 919   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
 920   Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
 921
 922   // sector angle shift
 923
 924   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
 925
 926   // number of sectors
 927
 928   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
 929   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
 930
 931   // All above parameters are identical for inner and outer
 932   // sectors. The distinction is kept for the historical reasons
 933   // and eventually will disappear.
 934
 935   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
 936   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
 937   Float_t space;
 938
 939   //-------------------------------------------------------------------------
 940   //   Tpc Inner Readout Chambers
 941   //-------------------------------------------------------------------------
 942
 943   dm[0]= 14.483;
 944   dm[1]= 23.3345;
 945   dm[2]= 1.6; // thickness
 946   dm[3]= 25.1;
 947
 948   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
 949
 950   // this volume will be positioned in the empty space
 951   // of the end-cap to avoid overlaps
 952
 953   dm[0]= 13.7305;
 954   dm[1]= 21.1895;
 955   dm[2]= 2.25;
 956   dm[3]= 21.15;
 957
 958   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
 959
 960
 961   //------------------------------------------------
 962   // Tpc Inner readout chamber Pad Plane
 963   //------------------------------------------------
 964
 965   dm[0]= 14.483;
 966   dm[1]= 23.3345;
 967   dm[2]= 0.5;
 968   dm[3]= 25.1;
 969
 970   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
 971
 972   //
 973
 974   dm[0] -= 1.218511934;
 975   dm[1] -= 1.218511934;
 976   dm[2] = 0.35;
 977
 978   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
 979
 980   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
 981
 982   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
 983
 984
 985   //----------------------------------------------
 986   // Tpc Readout Chambers Empty spaces - for both
 987   // inner and outer sectors
 988   //----------------------------------------------
 989
 990   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
 991
 992   // Inner sector - 4 spaces
 993
 994
 995   dm[3] = 4.7625;
 996   dm[0] = 12.472;
 997
 998   Float_t rr = 90.52;
 999   Float_t zz;
1000
1001   zz= -12.7875;
1002
1003   space = rr*tanAlpha-dm[0];
1004
1005   for(Int_t nsLow=0;nsLow<4;nsLow++){
1006
1007     rr += 9.525;
1008     dm[1]= rr*tanAlpha - space;
1009
1010     dm[2]=0.8;
1011
1012     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1013
1014     //
1015
1016     dm[2] = 1.2;
1017
1018     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1019
1020     rr += 0.4;
1021     dm[0] = rr*tanAlpha - space;
1022     zz += (0.4+9.525);
1023
1024   }
1025
1026   dm[0]= 12.472;
1027   // dm[1] - this is the dm[1] from the previous TRCE
1028   dm[2]= 1.05;
1029   dm[3]= 19.65;
1030
1031   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);
1032
1033   //
1034   // TPc Space for Connectors
1035   //
1036
1037   dm[0]= .3;
1038   dm[1]= .3;
1039   dm[2]= 4.5;
1040
1041   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1042
1043   // TPC Connectors
1044
1045   dm[0]= .25;
1046   dm[1]= .15;
1047   dm[2]= 3.75;
1048
1049   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3);
1050
1051   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1052
1053   zz = -12.7875;
1054
1055
1056   Float_t alpha;
1057   Float_t astep;
1058
1059   // inner part of the inner sector - 2 x 20 holes
1060
1061   astep = 20.00096874/19.;
1062
1063   alpha = 10.00048437-astep;
1064
1065   Float_t x1,x2;
1066
1067     x1 = 13.31175725;
1068     x1 -= 0.996357832;
1069
1070     x2 = 15.06180253;
1071     x2 -= 1.163028812;
1072
1073   Int_t ncon;
1074
1075   for(ncon=0;ncon<20;ncon++){
1076
1077     phi1 = 0.;
1078     theta1 = 90.+alpha;
1079     phi2=90.;
1080     theta2 = 90.;
1081     phi3 = (alpha>0) ? 0. : 180.;
1082     theta3 = TMath::Abs(alpha);
1083
1084     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1085
1086
1087
1088     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1089     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1090
1091
1092     x1 -= 1.296357833;
1093     x2 -= 1.463028812;
1094
1095     alpha -= astep;
1096     nRotMat++;
1097
1098   }
1099
1100   // outer part of the inner sector - 2 x 25 holes
1101
1102    astep = 20.00096874/24.;
1103    alpha = 10.00048437-astep;
1104
1105    x1 = 16.81184781;
1106    x1 -= 1.016295986;
1107
1108    x2 = 18.5618931;
1109    x2 -= 1.150914854;
1110
1111   for(ncon=0;ncon<25;ncon++){
1112
1113     phi1 = 0.;
1114     theta1 = 90.+alpha;
1115     phi2=90.;
1116     theta2 = 90.;
1117     phi3 = (alpha>0) ? 0. : 180.;
1118     theta3 = TMath::Abs(alpha);
1119
1120     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1121
1122
1123
1124     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1125     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1126
1127
1128     x1 -= 1.316295986;
1129     x2 -= 1.450914854;
1130
1131     alpha -= astep;
1132     nRotMat++;
1133
1134   }
1135
1136   //--------------------------------------------------------------------------
1137   //  TPC Outer Readout Chambers
1138   //  this is NOT a final design
1139   //--------------------------------------------------------------------------
1140
1141   dm[0]= 23.3875;
1142   dm[1]= 43.524;
1143   dm[2]= 1.5; //thickness
1144   dm[3]= 57.1;
1145
1146   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1147
1148   //------------------------------------------------
1149   // Tpc Outer readout chamber Pad Plane
1150   //------------------------------------------------
1151
1152   dm[2]= 0.5;
1153
1154   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1155
1156   dm[0] -= 1.218511934;
1157   dm[1] -= 1.218511934;
1158   dm[2] = 0.35;
1159
1160   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1161
1162   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1163
1164   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1165
1166   // empty space
1167
1168   dm[0]= 21.035;
1169   dm[1]= 38.7205;
1170   dm[2]= 0.7;
1171   dm[3]= 50.15;
1172
1173   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);
1174
1175   dm[0]= 22.2935;
1176   dm[1]= 40.5085;
1177   dm[2]= 2.25;
1178   dm[3]= 51.65;
1179
1180   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1181
1182   dm[0]= 21.35;
1183   dm[1]= 38.7205;
1184   dm[2]= 2.25;
1185   dm[3]= 50.15;
1186
1187   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4);
1188
1189   //-----------------------------------------------
1190   // Tpc Services Support Wheel
1191   //-----------------------------------------------
1192
1193   dm[0]=0.;
1194   dm[1]=360.;
1195   dm[2]=18.;
1196   dm[3]=2.;
1197
1198   dm[4]= -5.;
1199   dm[5]= 77.017;
1200   dm[6]= 255.267;
1201
1202   dm[7]= 5.;
1203   dm[8]= dm[5];
1204   dm[9]= dm[6];
1205
1206   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1207
1208   // Tpc Services Wheel Cover
1209
1210   dm[4]= -0.5;
1211   dm[7]= 0.5;
1212
1213   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1214
1215   // Tpc Service wheel Cover Empty space
1216
1217   dm[0]= 10.99;
1218   dm[1]= 39.599;
1219   dm[2]= .5;
1220   dm[3]= 81.125;
1221
1222   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1223
1224   // Tpc services Wheel Empty Spaces
1225
1226   dm[0]= 13.18017507;
1227   dm[1]= 44.61045938;
1228   dm[2]= 4.;
1229   dm[3]= 89.125;
1230
1231   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1232
1233   // Tpc Services Wheel Bars
1234
1235   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1236
1237   // bars-> TWES
1238
1239   dm[2]= 4.;
1240   dm[3]= .4;
1241
1242   dm[0]= 13.8149522;
1243   dm[1]= 13.95601379;
1244
1245   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1246
1247   dm[0]= 43.83462067;
1248   dm[1]= 43.97568225;
1249
1250   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1251
1252   // TPc ELectronics - right now 30% X0 Si
1253
1254   dm[0]= 14.03813696;
1255   dm[1]= 43.3524075;
1256   dm[2]= 1.404;
1257   dm[3]= 83.125;
1258
1259   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1260   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1261
1262   //--------------------------------------------------------------------------
1263   //  End caps
1264   //--------------------------------------------------------------------------
1265
1266   // TPc Main Wheel - Al
1267
1268   dm[0]= 74.9;
1269   dm[1]= 264.4;
1270   dm[2]= 3.0;
1271
1272   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1273
1274   //--------------------------------------------------------------------------
1275   //  Tpc Empty Space for the Readout chambers
1276   //--------------------------------------------------------------------------
1277
1278   Float_t rLow= 86.2;
1279   Float_t rUp= 243.5;
1280   Float_t dR = 0.5*(rUp-rLow);
1281
1282   space= 1.5/cosAlpha; // wheel ribs are 3.0 cm wide
1283
1284   dm[0]= rLow*tanAlpha-space;
1285   dm[1]= rUp*tanAlpha-space;
1286   dm[2] = 3.0;
1287   dm[3]= dR;
1288
1289   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1290
1291   // TIC1->TESR
1292
1293   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1294
1295   // TOC1->TESR
1296
1297   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1298
1299   // Tpc Empty Space Bars - Al (daughters of TESR)
1300
1301   Float_t zBar;
1302
1303   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1304
1305   // lower bar
1306
1307   dm[0]= rLow*tanAlpha-space;
1308   dm[1]= 88.7*tanAlpha-space;
1309   dm[2]= 2.25;
1310   dm[3]= 1.275;
1311
1312   zBar = -dR+dm[3];
1313
1314   gMC->Gsposp("TESB",1,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1315
1316   // middle bar
1317
1318   dm[0]= 131.65*tanAlpha-space;
1319   dm[1]= 136.5*tanAlpha-space;
1320   dm[3]= 2.425;
1321
1322   zBar = -dR +131.65+dm[3]-rLow;
1323
1324   gMC->Gsposp("TESB",2,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1325
1326   // upper bar
1327
1328   dm[0]= 240.4*tanAlpha-space;
1329   dm[1]= rUp*tanAlpha-space;
1330   dm[3]= 1.55;
1331
1332   zBar = dR-dm[3];
1333
1334   gMC->Gsposp("TESB",3,"TESR",0.,0.75,zBar,0,"ONLY",dm,4);
1335
1336
1337   //------------------------------------------------------
1338   //  TPc Lower "S" Sectors
1339   //------------------------------------------------------
1340
1341   Float_t deadSpace;
1342
1343
1344   Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
1345   Float_t inSecUpEdge =  fTPCParam->GetInnerRadiusUp();
1346
1347   dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1348   dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1349   dm[2] = 0.5*(250. - 5.e-3);
1350   dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);
1351
1352   gMC->Gsvolu("TPLS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1353
1354   //----------------------------------------------------------
1355   //  TPc Upper Sectors
1356   //----------------------------------------------------------
1357
1358   Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
1359   Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
1360
1361   dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1362   dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;
1363   dm[2] = 0.5*(250. - 5.e-3);
1364   dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
1365
1366   gMC->Gsvolu("TPUS", "TRD1", idtmed[1], dm, 4); // nonsensitive
1367
1368   //--------------------------------------------------------
1369   // TPc Sensitive Strips, the same for S and L sectors
1370   //--------------------------------------------------------
1371
1372   gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
1373
1374   Int_t nofStrips,nstr;
1375   Float_t r1,r2,zs;
1376   Float_t stripThick = 0.01; // 100 microns
1377
1378   // inner sector
1379
1380   nofStrips = fTPCParam->GetNRowLow();
1381   deadSpace = fTPCParam->GetInnerWireMount();
1382
1383   dm[2] = 0.5*(250. - 5.e-3);
1384   dm[3] = 0.5 * stripThick;
1385
1386   for(nstr=0;nstr<nofStrips;nstr++){
1387
1388     r1 = fTPCParam->GetPadRowRadiiLow(nstr);
1389     r2 = r1 + stripThick;
1390     dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1391     dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1392     zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
1393     zs += r1;
1394     zs += dm[3];
1395
1396     gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
1397
1398   }
1399
1400   Int_t nsSave = nofStrips;
1401
1402   // outer sector
1403
1404   nofStrips = fTPCParam->GetNRowUp();
1405   deadSpace = fTPCParam->GetOuterWireMount();
1406
1407   dm[2] = 0.5*(250. - 5.e-3);
1408   dm[3] = 0.5 * stripThick;
1409
1410    for(nstr=0;nstr<nofStrips;nstr++){
1411
1412     r1 = fTPCParam->GetPadRowRadiiUp(nstr);
1413     r2 = r1 + stripThick;
1414     dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1415     dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1416     zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
1417     zs += r1;
1418     zs += dm[3];
1419
1420     gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
1421
1422    }
1423
1424   //-------------------------------------------------------
1425   //  positioning of the empty spaces into the main wheel
1426   //  and readout chambers and sectors into the drift gas
1427   //-------------------------------------------------------
1428
1429
1430   Float_t rCenter,xc,yc;
1431   Float_t rInner,rOuter; // center of the inner and outer chamber
1432
1433   rCenter = rLow+dR;
1434
1435   rInner = 108.07;
1436   rOuter = 190.68;
1437
1438
1439   for(Int_t ns=0; ns<nInnerSector;ns++){
1440
1441     phi1 = ns * innerOpenAngle + innerAngleShift;
1442     phi1 *= kRaddeg; // in degrees
1443
1444     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1445
1446     if (phi1 > 360.) phi1 -= 360.;
1447
1448     theta1 = 90.;
1449     phi2   = 90.;
1450     theta2 = 180.;
1451     phi3   = ns * innerOpenAngle + innerAngleShift;
1452     phi3 *= kRaddeg; // in degrees
1453
1454     phi3 = (Float_t)TMath::Nint(phi3);
1455
1456     if(phi3 > 360.) phi3 -= 360.;
1457
1458     theta3 = 90.;
1459
1460     // "holes"->End plate
1461
1462     xc = rCenter*TMath::Cos(phi3*kDegrad);
1463     yc = rCenter*TMath::Sin(phi3*kDegrad);
1464
1465     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1466
1467     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1468
1469     // TSCE->TSWC (services wheel volumes)
1470
1471     xc = 166.142*TMath::Cos(phi3*kDegrad);
1472     yc = 166.142*TMath::Sin(phi3*kDegrad);
1473
1474     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1475     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1476
1477
1478     // readout chambers->TDGN (drift gas)
1479
1480     xc = rInner*TMath::Cos(phi3*kDegrad);
1481     yc = rInner*TMath::Sin(phi3*kDegrad);
1482
1483     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1484
1485     // here lower sectors
1486
1487     gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY");
1488     gMC->Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY");
1489
1490
1491
1492     xc = rOuter*TMath::Cos(phi3*kDegrad);
1493     yc = rOuter*TMath::Sin(phi3*kDegrad);
1494
1495     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1496
1497     // here upper sectors
1498
1499     gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.0025,idrotm[nRotMat],"ONLY");
1500     gMC->Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.0025,idrotm[nRotMat],"ONLY");
1501
1502
1503     nRotMat++;
1504
1505     theta2 = 0.; // reflection
1506
1507     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1508
1509     xc = rInner*TMath::Cos(phi3*kDegrad);
1510     yc = rInner*TMath::Sin(phi3*kDegrad);
1511
1512     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1513
1514     xc = rOuter*TMath::Cos(phi3*kDegrad);
1515     yc = rOuter*TMath::Sin(phi3*kDegrad);
1516
1517     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1518
1519     nRotMat++;
1520
1521   }
1522   // TPMW->TPC
1523
1524   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1525   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[0],"ONLY");
1526
1527   //---------------------------------------------------------
1528   //  Tpc High Voltage Membrane - 100 microns of mylar
1529   //---------------------------------------------------------
1530
1531   dm[0]=82.8;
1532   dm[1]=252.;
1533   dm[2]=0.005;
1534
1535   gMC->Gsvolu("THVM","TUBE",idtmed[8],dm,3);
1536
1537   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1538
1539   // Tpc High Voltage membrane Holders
1540
1541   gMC->Gsvolu("THVH","TUBE",idtmed[4],dm,0);
1542
1543
1544
1545   // inner
1546
1547   dm[0]=79.3;
1548   dm[1]=82.8;
1549   dm[2]=0.2;
1550
1551   gMC->Gsposp("THVH",1,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1552
1553   // outer
1554
1555   dm[0]= 252.;
1556   dm[1]= 257.9;
1557   dm[2]= 0.4;
1558
1559   gMC->Gsposp("THVH",2,"TDGN",0.,0.,0.,0,"ONLY",dm,3);
1560
1561   //----------------------------------------------------------
1562   // TPc Support Rods - MAKROLON
1563   //----------------------------------------------------------
1564
1565   dm[0]= 0.9;
1566   dm[1]= 1.2;
1567
1568   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,0); // inner and outer rods differ
1569
1570
1571   for(Int_t nrod=0;nrod<18;nrod++){
1572     Float_t angle=innerOpenAngle*(Float_t)nrod;
1573
1574     xc=81.5*TMath::Cos(angle);
1575     yc=81.5*TMath::Sin(angle);
1576
1577     dm[2]=126.7;
1578
1579     gMC->Gsposp("TPSR",nrod+1,"TDGN",xc,yc,126.9,0,"ONLY",dm,3);
1580     gMC->Gsposp("TPSR",nrod+19,"TDGN",xc,yc,-126.9,0,"ONLY",dm,3);
1581
1582     dm[2]=126.6;
1583
1584     xc=254.25*TMath::Cos(angle);
1585     yc=254.25*TMath::Sin(angle);
1586
1587     // rod number 54 contans the HV cable
1588
1589     if(nrod<17) {
1590       gMC->Gsposp("TPSR",nrod+37,"TDGN",xc,yc,127.,0,"ONLY",dm,3);
1591       gMC->Gsposp("TPSR",nrod+54,"TDGN",xc,yc,-127.,0,"ONLY",dm,3);
1592     }
1593
1594   }
1595
1596   //----------------------------------------------------------
1597   // Tpc High Voltage Rod - MAKROLON + Copper cable
1598   //----------------------------------------------------------
1599
1600   // rod with cable (Left)
1601
1602   dm[0]=0.;
1603   dm[1]=2.25;
1604   dm[2]=126.6;
1605
1606   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1607
1608   // HV cable
1609
1610   dm[0]=0.;
1611   dm[1]=0.3;
1612   dm[2]=126.6;
1613
1614   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1615
1616   // empty space
1617
1618   dm[0]=0.3;
1619   dm[1]=1.;
1620   dm[2]=126.6;
1621
1622   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1623
1624   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1625   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1626
1627   // rod without cable
1628
1629   dm[0]=1.8;
1630   dm[1]=2.25;
1631   dm[2]=126.6;
1632
1633   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1634
1635   gMC->Gspos("THVL",1,"TDGN",xc,yc,-127.,0,"ONLY");
1636   gMC->Gspos("THVR",1,"TDGN",xc,yc,127.,0,"ONLY");
1637
1638   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY");
1639
1640   // services wheel cover -> wheel
1641
1642
1643   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1644   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1645
1646
1647   // put the wheel into the TPC
1648
1649   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1650   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1651
1652   //
1653
1654   gMC->Gsord("TPMW",6);
1655   gMC->Gsord("TSSW",6);
1656   gMC->Gsord("TSWC",6);
1657   gMC->Gsord("TPLS",3);
1658   gMC->Gsord("TPUS",3);
1659   gMC->Gsord("TDGN",6);
1660
1661
1662   // put the TPC into ALIC (main mother volume)
1663
1664   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1665
1666
1667
1668 } // end of function
1669
1670 //_____________________________________________________________________________
1671 void AliTPCv1::DrawDetector()
1672 {
1673   //
1674   // Draw a shaded view of the Time Projection Chamber version 1
1675   //
1676
1677   // Set everything unseen
1678   gMC->Gsatt("*", "seen", -1);
1679   //
1680   // Set ALIC mother transparent
1681   gMC->Gsatt("ALIC","SEEN",0);
1682   //
1683   // Set the volumes visible
1684   gMC->Gsatt("TPC ","SEEN",0);
1685   gMC->Gsatt("TOIN","SEEN",1);
1686   gMC->Gsatt("TOIN","COLO",7);
1687   gMC->Gsatt("TOCV","SEEN",1);
1688   gMC->Gsatt("TOCV","COLO",4);
1689   gMC->Gsatt("TSA1","SEEN",0);
1690   gMC->Gsatt("TSA2","SEEN",0);
1691   gMC->Gsatt("TSA3","SEEN",0);
1692   gMC->Gsatt("TSA4","SEEN",0);
1693   gMC->Gsatt("TSA5","SEEN",0);
1694   gMC->Gsatt("TOFC","SEEN",1);
1695   gMC->Gsatt("TOFC","COLO",4);
1696   gMC->Gsatt("TSA6","SEEN",0);
1697   gMC->Gsatt("TSA7","SEEN",0);
1698   gMC->Gsatt("TSA8","SEEN",0);
1699   gMC->Gsatt("TIIN","SEEN",1);
1700   gMC->Gsatt("TIIN","COLO",7);
1701   gMC->Gsatt("TII1","SEEN",0);
1702   gMC->Gsatt("TIFC","SEEN",1);
1703   gMC->Gsatt("TIFC","COLO",4);
1704   gMC->Gsatt("TSA9","SEEN",0);
1705   gMC->Gsatt("TS10","SEEN",0);
1706   gMC->Gsatt("TS11","SEEN",0);
1707   gMC->Gsatt("TS12","SEEN",0);
1708   gMC->Gsatt("TS13","SEEN",0);
1709   gMC->Gsatt("TS14","SEEN",0);
1710   gMC->Gsatt("TICC","SEEN",0);
1711   gMC->Gsatt("TICM","SEEN",0);
1712   gMC->Gsatt("TS15","SEEN",0);
1713   gMC->Gsatt("TS16","SEEN",0);
1714   gMC->Gsatt("TS17","SEEN",0);
1715   gMC->Gsatt("TS18","SEEN",0);
1716   gMC->Gsatt("TS19","SEEN",0);
1717   gMC->Gsatt("TPJ1","SEEN",0);
1718   gMC->Gsatt("TPJ2","SEEN",0);
1719   gMC->Gsatt("TICS","SEEN",0);
1720   gMC->Gsatt("TDGN","SEEN",0);
1721   gMC->Gsatt("TIRC","SEEN",0);
1722   gMC->Gsatt("TIC1","SEEN",1);
1723   gMC->Gsatt("TIPP","SEEN",0);
1724   gMC->Gsatt("TIC3","SEEN",0);
1725   gMC->Gsatt("TRCE","SEEN",0);
1726   gMC->Gsatt("TPSC","SEEN",0);
1727   gMC->Gsatt("TPCC","SEEN",0);
1728   gMC->Gsatt("TORC","SEEN",0);
1729   gMC->Gsatt("TOPP","SEEN",0);
1730   gMC->Gsatt("TOC3","SEEN",0);
1731   gMC->Gsatt("TOC1","SEEN",1);
1732   gMC->Gsatt("TSSW","SEEN",1);
1733   gMC->Gsatt("TSWC","SEEN",1);
1734   gMC->Gsatt("TSSW","COLO",3);
1735   gMC->Gsatt("TSWC","COLO",3);
1736   gMC->Gsatt("TSCE","COLO",6);
1737   gMC->Gsatt("TSCE","SEEN",1);
1738   gMC->Gsatt("TWES","SEEN",0);
1739   gMC->Gsatt("TSWB","SEEN",0);
1740   gMC->Gsatt("TPEL","SEEN",0);
1741   gMC->Gsatt("TPMW","SEEN",1);
1742   gMC->Gsatt("TESR","SEEN",1);
1743   gMC->Gsatt("TPMW","COLO",12);
1744   gMC->Gsatt("TIC1","COLO",5);
1745   gMC->Gsatt("TOC1","COLO",5);
1746   gMC->Gsatt("TESB","SEEN",0);
1747   gMC->Gsatt("THVM","SEEN",1);
1748   gMC->Gsatt("THVM","COLO",11);
1749   gMC->Gsatt("THVH","SEEN",0);
1750   gMC->Gsatt("TPSR","SEEN",0);
1751   gMC->Gsatt("THVL","SEEN",0);
1752   gMC->Gsatt("THVC","SEEN",0);
1753   gMC->Gsatt("THVE","SEEN",0);
1754   gMC->Gsatt("THVR","SEEN",0);
1755   gMC->Gsatt("TPSS","SEEN",0);
1756   gMC->Gsatt("TPUS","SEEN",0);
1757   gMC->Gsatt("TPLS","SEEN",0);
1758
1759   //
1760   gMC->Gdopt("hide", "on");
1761   gMC->Gdopt("shad", "on");
1762   gMC->Gsatt("*", "fill", 7);
1763   gMC->SetClipBox(".");
1764   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1765   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1766   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1767   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1768   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1769   gMC->DefaultRange();
1770   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1771   gMC->Gdhead(1111, "Time Projection Chamber");
1772   gMC->Gdman(18, 4, "MAN");
1773   gMC->Gdopt("hide","off");
1774 }
1775
1776 //_____________________________________________________________________________
1777 void AliTPCv1::CreateMaterials()
1778 {
1779   //
1780   // Define materials for Time Projection Chamber
1781   //
1782   AliTPC::CreateMaterials();
1783 }
1784
1785 //_____________________________________________________________________________
1786 void AliTPCv1::Init()
1787 {
1788   //
1789   // Initialises TPC detector after it has been created
1790   //
1791
1792   fIdSens=gMC->VolId("TPSS"); // sensitive strip
1793   fIdLSec=gMC->VolId("TPLS"); // lower sector
1794   fIdUSec=gMC->VolId("TPUS"); // upper sector
1795
1796   printf("%s: *** TPC version 1 initialized***\n",ClassName());
1797
1798   // printf("TPC version 1 initialized\n");
1799 }
1800
1801 //_____________________________________________________________________________
1802 void AliTPCv1::StepManager()
1803 {
1804   //
1805   // Called at every step in the Time Projection Chamber
1806   //
1807   Int_t         copy, id, i;
1808   Float_t       hits[4];
1809   Int_t         vol[2];
1810   TLorentzVector p;
1811  //
1812
1813   if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1814
1815     //
1816     // Only charged tracks entering the sensitive volume
1817     //
1818
1819     id = gMC->CurrentVolID(copy);
1820
1821     if(id == fIdSens){
1822
1823       // sensitive volume (strip)
1824
1825       vol[1]= copy-1; // row number (absolute)
1826
1827       // sector type
1828
1829       id = gMC->CurrentVolOffID(1,copy);
1830
1831       if(id == fIdLSec){
1832
1833         // lower sector
1834
1835         vol[0] = copy-1; // sector number
1836
1837       }
1838       else {
1839
1840         // upper sector
1841
1842         vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
1843         vol[1] -= fTPCParam->GetNRowLow(); // row number
1844
1845       }
1846
1847       if(vol[1] == 0){
1848
1849         // because Jouri wants to have this
1850
1851         gMC->TrackMomentum(p);
1852         hits[0]=p[0];
1853         hits[1]=p[1];
1854         hits[2]=p[2];
1855         hits[3]=0.; // this hit has no energy loss
1856         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1857
1858         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1859
1860         gMC->TrackPosition(p);
1861         hits[0]=p[0];
1862         hits[1]=p[1];
1863         hits[2]=p[2];
1864         hits[3]=0.; // this hit has no energy loss
1865         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1866
1867         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1868
1869       }
1870
1871       gMC->TrackPosition(p);
1872       for(i=0;i<3;++i) hits[i]=p[i];
1873       hits[3]=1; //I'd like to have something positive here (I.Belikov)
1874       // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1875
1876       AddHit(gAlice->CurrentTrack(), vol,hits); // M.I.
1877
1878     }
1879
1880   }
1881
1882 }
1883 //_____________________________________________________________________________
1884
1885
1886