Corrected bug in the outer containment vessel and
[u/mrichter/AliRoot.git] / TPC / AliTPCv0.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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15
16 /*
17 $Log$
18 Revision 1.19  2000/11/02 16:55:24  kowal2
19 Corrected bug in the inner containment vessel geometry.
20 Thanks to J. Belikov
21
22 Revision 1.18  2000/11/02 07:24:11  kowal2
23 Correction in the TPC geometry.
24 Changes due to the new hit structure.
25
26 Revision 1.17  2000/07/10 20:57:39  hristov
27 Update of TPC code and macros by M.Kowalski
28
29 Revision 1.16  2000/06/30 12:07:50  kowal2
30 Updated from the TPC-PreRelease branch
31
32 Revision 1.15.2.4  2000/06/26 07:39:42  kowal2
33 Changes to obey the coding rules
34
35 Revision 1.15.2.3  2000/06/25 08:38:41  kowal2
36 Splitted from AliTPCtracking
37
38 Revision 1.15.2.2  2000/06/16 12:58:13  kowal2
39 Changed parameter settings
40
41 Revision 1.15.2.1  2000/06/09 07:15:07  kowal2
42
43 Defaults loaded automatically (hard-wired)
44 Optional parameters can be set via macro called in the constructor
45
46 Revision 1.15  2000/05/15 10:00:30  kowal2
47 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
48
49 Revision 1.14  2000/04/17 09:37:33  kowal2
50 removed obsolete AliTPCDigitsDisplay.C
51
52 Revision 1.13.8.2  2000/04/10 08:33:44  kowal2
53
54 Updated readout chambers
55
56 Revision 1.13.8.1  2000/04/10 07:56:53  kowal2
57 Not used anymore - removed
58
59 Revision 1.13  1999/11/04 17:28:06  fca
60 Correct barrel part of HV Degrader
61
62 Revision 1.12  1999/10/08 06:27:23  fca
63 Corrected bug in the HV degrader geometry, thanks to G.Tabary
64
65 Revision 1.11  1999/10/04 13:39:54  fca
66 Correct array index problem
67
68 Revision 1.10  1999/09/29 09:24:34  fca
69 Introduction of the Copyright and cvs Log
70
71 */
72 //
73
74 ///////////////////////////////////////////////////////////////////////////////
75 //                                                                           //
76 //  Time Projection Chamber version 0 -- "coarse" TPC                        //
77 //                                                                           //
78 //Begin_Html
79 /*
80 <img src="picts/AliTPCv0Class.gif">
81 */
82 //End_Html
83 //                                                                           //
84 //                                                                           //
85 ///////////////////////////////////////////////////////////////////////////////
86
87 #include <TMath.h>
88 #include <TGeometry.h>
89 #include <TNode.h>
90 #include <TTUBE.h>
91 #include "AliTPCv0.h"
92 #include "AliRun.h"
93 #include <iostream.h>
94 #include <fstream.h>
95 #include "AliMC.h"
96 #include "AliConst.h"
97
98 #include "AliTPCParamSR.h"
99 #include "AliTPCDigitsArray.h"
100
101 ClassImp(AliTPCv0)
102  
103 //_____________________________________________________________________________
104 AliTPCv0::AliTPCv0(const char *name, const char *title) 
105          :AliTPC(name, title)
106 {
107   //
108   // Standard creator for TPC version 0
109   //
110
111   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
112
113   if (fTPCParam)
114      fTPCParam->Write(fTPCParam->GetTitle());
115 }
116
117 //_____________________________________________________________________________
118 void AliTPCv0::CreateGeometry()
119 {
120   //
121   // Creation of the TPC version 0, i.e. no sensitive volumes,
122   // only the material distribution
123   //
124   //Begin_Html
125   /*
126     <img src="picts/AliTPC.gif">
127   */
128   //End_Html
129   //Begin_Html
130   /*
131     <img src="picts/AliTPCv0Tree.gif">
132   */
133   //End_Html
134
135   //---------------------------------------------------------------
136   //  TPC geometry
137   //
138   //  Origin: Marek Kowalski, INP Cracow
139   //  Marek.Kowalski@ifj.edu.pl
140   //---------------------------------------------------------------
141
142   Float_t dm[50];
143
144   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
145
146   Int_t idrotm[120]; // rotation matrices
147
148   Int_t nRotMat = 0; // actual number of rotation matrices
149
150
151   //
152   //  Mother volume (Air) - all volumes will be positioned in it
153   //
154   
155   dm[0]=0.;
156   dm[1]=360.;
157   dm[2]=12.;
158
159   //
160  
161   dm[3]= -283.7;
162   dm[4]= 66.2;
163   dm[5]= 277.95;
164
165   //
166
167   dm[6]= -255.6;
168   dm[7]= 66.2;
169   dm[8]= 277.95;
170
171   //
172
173   dm[9]= -73.3;
174   dm[10]= 59.0;
175   dm[11]= 277.95;
176
177   //
178
179   dm[12]= -73.3;
180   dm[13]= 56.9;
181   dm[14]= 277.95;
182
183   //
184
185   dm[15]= -72.1;
186   dm[16]= 56.9;
187   dm[17]= 277.95;
188
189   //
190
191   dm[18]= -72.1;
192   dm[19]= 60.65;
193   dm[20]= 277.95;
194
195   //
196
197   dm[21]= 72.1;
198   dm[22]= 60.65;
199   dm[23]= 277.95;  
200
201   //
202
203   dm[24]= 72.1;
204   dm[25]= 56.9;
205   dm[26]= 277.95;
206
207   //
208
209   dm[27]= 73.3;
210   dm[28]= 56.9;
211   dm[29]= 277.95;
212
213   //
214
215   dm[30]= 73.3;
216   dm[31]= 60.65;
217   dm[32]= 277.95;
218
219   //
220
221   dm[33]= 250.4;
222   dm[34]= 66.0;
223   dm[35]= 277.95;
224
225   //
226
227   dm[36]= 283.7;
228   dm[37]= 66.0;
229   dm[38]= 277.95;
230
231
232   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
233
234
235   //-------------------------------------------------------------------
236   //  Tpc Outer INsulator (CO2)
237   //-------------------------------------------------------------------
238
239   dm[0]= 0.;
240   dm[1]= 360.;
241   dm[2]= 6.;
242
243   //
244  
245   dm[3]= -253.6;
246   dm[4]= 258.;
247   dm[5]= 266.65;
248
249   //
250
251   dm[6]= -253.;
252   dm[7]= 258.;
253   dm[8]= 266.65;
254
255   dm[9]= -253.;
256   dm[10]= 258.;
257   dm[11]= 277.97;
258
259   dm[12]= 253.6;
260   dm[13]= 258.;
261   dm[14]= 277.97;
262
263   //
264
265   dm[15]= 253.6;
266   dm[16]= 265.2;
267   dm[17]= 277.95;
268
269   //
270
271   dm[18]= 255.6;
272   dm[19]= 265.2;
273   dm[20]= 277.95;
274
275
276   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
277
278   //---------------------------------------------------------------
279   // shreds (G10) - TPC Rings
280   //---------------------------------------------------------------
281
282   gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
283
284   dm[0]= 258.;
285   dm[1]= 266.65;
286   dm[2]= 0.3;
287
288   gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
289
290   //
291
292   dm[0]= 258.;
293   dm[1]= 270.9;
294   dm[2]= 0.3;
295
296   gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
297
298   //
299
300   dm[0]= 272.2;
301   dm[1]= 277.95;
302   dm[2]= 0.3;
303
304   gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
305
306   //----------------------------------------------------------------
307   // Tpc Outer Contaiment Vessel  
308   //  mother volume - Al, daughters - composite (sandwich)
309   //----------------------------------------------------------------
310   
311   dm[0]= 0.;
312   dm[1]= 360.;
313   dm[2]=6.;
314
315   //
316
317   dm[3]= -250.4;
318   dm[4]= 272.2;
319   dm[5]= 277.95;
320
321   //
322
323   dm[6]= -248.4;
324   dm[7]= 272.2;
325   dm[8]= 277.95;
326
327   //
328   dm[9]= -248.4;
329   dm[10]= 274.81;
330   dm[11]= 277.95; 
331   
332
333   //
334
335   dm[12]= 253.6;
336   dm[13]= 274.81;
337   dm[14]= 277.95;
338
339   //
340
341   dm[15]= 253.6;
342   dm[16]= 265.2;
343   dm[17]= 277.95;
344
345   // 
346
347   dm[18]= 255.6;
348   dm[19]= 265.2;
349   dm[20]= 277.95;
350
351   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
352
353   // Daughter volumes
354
355   // Tpc SAndwich 1 - Al
356  
357   dm[0]= 274.81;
358   dm[1]= 277.95;
359   dm[2]= 251.7;
360
361   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
362
363   // Tpc SAndwich 2 - Tedlar
364
365   dm[0] += 5.e-3;
366   dm[1] -= 5.e-3;
367   
368   gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
369
370   // Tpc SAndwich 3 - Kevlar
371
372   dm[0] += 5e-3;
373   dm[1] -= 5.e-3;
374
375   gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
376
377   // Tpc SAndwich 4 - NOMEX honeycomb
378
379   dm[0] += 0.06;
380   dm[1] -= 0.06;
381
382   gMC->Gsvolu("TSA4","TUBE",idtmed[5],dm,3);  
383   
384   // 4->3->2->1->TOCV
385
386   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
387   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
388   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
389
390   gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
391
392   // TCOV-> TOIN
393
394   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
395
396   //-------------------------------------------------------
397   //  Tpc Outer Field Cage
398   //  mother volume - Al, daughters - composite (sandwich)
399   //-------------------------------------------------------
400
401   dm[0]=0.;
402   dm[1]=360.;
403   dm[2]=6.;
404
405   dm[3]= -253.;
406   dm[4]= 258.;
407   dm[5]= 277.95;
408
409   //
410
411   dm[6]= -251.;
412   dm[7]= 258.;
413   dm[8]= 277.95;
414
415   //
416  
417   dm[9]= -251.;
418   dm[10]= 258.;
419   dm[11]= 260.05;
420
421   //
422
423   dm[12]= 251.;
424   dm[13]= 258.;
425   dm[14]= 260.05;
426
427   //
428
429   dm[15]= 251.;
430   dm[16]= 258.;
431   dm[17]= 270.9;
432
433   //
434
435   dm[18]= 253.;
436   dm[19]= 258.;
437   dm[20]= 270.9;
438
439   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);  
440
441   // Daughter volumes 
442
443   // Tpc SAndwich 5 - Tedlar
444
445   dm[0]= 258.;
446   dm[1]= 260.05;
447   dm[2]= 251.7;
448
449   gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3);
450
451   // Tpc SAndwich 6 - Kevlar
452
453   dm[0] += 5.e-3;
454   dm[1] -= 5.e-3;
455
456   gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3);
457
458
459   // Tpc SAndwich 7 - NOMEX
460
461   dm[0] += 0.02;
462   dm[1] -= 0.02;
463
464   gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3);    
465
466   // 7->6->5->TOFC
467
468   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
469   gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY"); 
470
471   gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
472
473   // TOFC->TOIN
474
475   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY"); 
476
477   // TOIN->TPC
478
479   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
480
481   //--------------------------------------------------------------------
482   // Tpc Inner INsulator (CO2)
483   //--------------------------------------------------------------------
484
485
486   dm[0]=0.;
487   dm[1]= 360.;
488   dm[2]= 15.;
489
490   //
491
492   dm[3]= -255.6;
493   dm[4]= 66.2;
494   dm[5]= 74.8;
495
496   //
497
498   Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
499
500   dm[6]= -253.6;
501   dm[7]= 59.0+ (253.6-73.3)*tanL;
502   dm[8]= 74.8;
503
504   //
505
506   dm[9]= -253.6;
507   dm[10]= dm[7];
508   dm[11]= 79.2;
509
510   //
511
512   dm[12]= -73.3;
513   dm[13]= 59.0;
514   dm[14]= 79.2;
515
516   //
517
518   dm[15]= -73.3;
519   dm[16]= 56.9;
520   dm[17]= 79.2;
521
522   //
523
524   dm[18]= -72.1;
525   dm[19]= 59.6;
526   dm[20]= 79.2;
527
528   //
529
530   dm[21]= -72.1;
531   dm[22]= 60.65;
532   dm[23]= 79.2;
533
534   //
535
536   dm[24]= 72.1;
537   dm[25]= 60.65;
538   dm[26]= 79.2;  
539
540   //
541
542   dm[27]= 72.1;
543   dm[28]= 59.6;
544   dm[29]= 79.2;
545
546   //
547
548   dm[30]= 73.3;
549   dm[31]= 56.9;
550   dm[32]= 79.2;
551
552   //
553
554   dm[33]= 73.3;
555   dm[34]= 59.0;
556   dm[35]= 79.2;
557
558   //
559
560   dm[36]= 250.4;
561   dm[37]= 66.0;
562   dm[38]= 79.2;
563
564   //
565   
566   dm[39]= 253.0;
567   dm[40]= 66.0;
568   dm[41]= 79.2;
569
570   //
571
572   dm[42]= 253.0;
573   dm[43]= 75.3;
574   dm[44]= 79.2;
575
576   //
577
578   dm[45]= 253.6;
579   dm[46]= 75.3;
580   dm[47]= 79.2;
581
582   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
583
584
585   //--------------------------------------------------------------------
586   //  Tpc Inner Containment vessel, Left part
587   //  mother volume - Al, daughter - composite (sandwich)
588   //--------------------------------------------------------------------
589
590   dm[0]= 0.;
591   dm[1]= 360.;
592   dm[2]= 8.;
593
594   //
595
596   dm[3]= -255.6;
597   dm[4]= 66.2;
598   dm[5]= 74.8;
599
600   //
601
602   Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
603   Float_t sandThick = 2.14; // cone composite thickness
604
605
606   //
607
608   dm[6]= -253.6;
609   dm[7]= 59.0 + (253.6-73.3)*tanL;
610   dm[8]= 74.8;
611
612   //
613
614   dm[9]= -253.6;
615   dm[10]= dm[7];
616   dm[11]= dm[7]+sandThick/cosL;
617
618   //
619
620   dm[12]= -75.6;
621   dm[13]= 59.0+(75.6-73.3)*tanL;
622   dm[14]= dm[13]+sandThick/cosL;
623
624   //
625
626   dm[15]= -75.6;
627   dm[16]= dm[13];
628   dm[17]= 60.65;
629
630   //
631
632   dm[18]= -73.3;
633   dm[19]= 59.0;
634   dm[20]= 60.65;
635
636   //
637
638   dm[21]= -73.3;
639   dm[22]= 56.9;
640   dm[23]= 60.65;
641
642   //
643
644   dm[24]= -72.1;
645   dm[25]= 56.9;
646   dm[26]= 60.65;
647
648   gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
649
650   // Daughter volumes 
651
652   // Tpc SAndwich 9 - Al
653
654   dm[0]= 0.;
655   dm[1]= 360.;
656   dm[2]= 2.;
657
658   //
659
660   dm[3]= - 254.3;
661   dm[4]= 59.0+(254.3-73.3)*tanL;
662   dm[5]= dm[4]+sandThick/cosL;
663
664   //
665
666   dm[6]= -78.3;
667   dm[7]= 59.0+(78.3-73.3)*tanL;
668   dm[8]= dm[7]+sandThick/cosL;
669
670   //
671
672   gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
673
674   // Tpc SAndwich 10 - Tedlar
675
676   dm[4]+= 5.e-3/cosL;
677   dm[5]-= 5.e-3/cosL;
678
679   //
680
681   dm[7]+= 5.e-3/cosL;
682   dm[8]+= 5.e-3/cosL;
683
684   gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9); 
685
686   // Tpc SAndwich 11 - Kevlar
687
688   dm[4]+= 5.e-3/cosL;
689   dm[5]-= 5.e-3/cosL;
690
691   //
692
693   dm[7]+= 5.e-3/cosL;
694   dm[8]+= 5.e-3/cosL;
695
696   gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9); 
697
698   // Tpc SAndwich 12 - NOMEX
699
700   dm[4]+= 0.06/cosL;
701   dm[5]-= 0.06/cosL;
702
703   //
704
705   dm[7]+= 0.06/cosL;
706   dm[8]+= 0.06/cosL;
707
708   gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);   
709
710   // 12->11->10->9
711
712   gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
713   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
714   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
715
716   // TSA9->TICL
717
718   gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
719  
720   //--------------------------------------------------------------------
721   //  Tpc Inner Containment vessel, Right part
722   //  mother volume - Al, daughter - composite (sandwich)
723   //--------------------------------------------------------------------
724
725   dm[0]= 0.;
726   dm[1]= 360.;
727   dm[2]=8.;
728
729   //
730
731   dm[3]= 72.1;
732   dm[4]= 56.9;
733   dm[5]= 60.65;
734
735   //
736
737   dm[6]= 73.3;
738   dm[7]= 56.9;
739   dm[8]= 60.65;
740
741   //
742
743   dm[9]= 73.3;
744   dm[10]= 59.0;
745   dm[11]= 60.65;
746
747   //
748
749   Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
750   Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
751
752   //
753
754   dm[12]= 75.6;
755   dm[13]= 59.0+(75.6-73.3)*tanR;
756   dm[14]= 60.65;
757
758   //
759
760   dm[15]= 75.6;
761   dm[16]= dm[13];
762   dm[17]= dm[16]+sandThick/cosR;
763
764   //
765
766   dm[18]= 248.4;
767   dm[19]= 59.0+(248.4-73.3)*tanR;
768   dm[20]= dm[19]+sandThick/cosR;
769
770   //
771
772   dm[21]= 248.4;
773   dm[22]= dm[19];
774   dm[23]= 70.2;
775
776   //
777
778   dm[24]= 250.4;
779   dm[25]= 66.0;
780   dm[26]= 70.2;
781
782   gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
783
784
785
786   // Daughter volumes 
787
788   // Tpc SAndwich 13 - Al
789
790   dm[0]= 0.;
791   dm[1]= 360.;
792   dm[2]= 2.;
793
794   //
795
796   dm[3]= 78.3;
797   dm[4]= 59.0+(78.3-73.3)*tanR;
798   dm[5]= dm[4]+sandThick/cosR;
799
800   //
801
802   dm[6]= 249.1;
803   dm[7]= 59.0+(249.1-73.3)*tanR;
804   dm[8]= dm[7]+sandThick/cosR;
805
806   //
807
808   gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
809
810   // Tpc SAndwich 14 - Tedlar
811
812   dm[4]+= 5.e-3/cosR;
813   dm[5]-= 5.e-3/cosR;
814
815   //
816
817   dm[7]+= 5.e-3/cosR;
818   dm[8]+= 5.e-3/cosR;
819
820   gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9); 
821
822   // Tpc SAndwich 15 - Kevlar
823
824   dm[4]+= 5.e-3/cosR;
825   dm[5]-= 5.e-3/cosR;
826
827   //
828
829   dm[7]+= 5.e-3/cosR;
830   dm[8]+= 5.e-3/cosR;
831
832   gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9); 
833
834   // Tpc SAndwich 16 - NOMEX
835
836   dm[4]+= 0.06/cosR;
837   dm[5]-= 0.06/cosR;
838
839   //
840
841   dm[7]+= 0.06/cosR;
842   dm[8]+= 0.06/cosR;
843
844   gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);   
845
846   // 16->15->14->13
847
848   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
849   gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
850   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
851
852   // TS12->TICR
853
854   gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
855
856   //------------------------------------------------------
857   // Tpc Inner Field Cage
858   // mother volume - Al, daughters - composite (sandwich)
859   //------------------------------------------------------
860
861   dm[0]= 0.;
862   dm[1]= 360.;
863   dm[2]=6.;
864
865   //
866
867   dm[3]= -253.0;
868   dm[4]= 70.7;
869   dm[5]= 79.2;
870
871   //
872
873   dm[6]= -251.0;
874   dm[7]= 70.7;
875   dm[8]= 79.2;
876
877   //
878
879   dm[9]= -251.0;
880   dm[10]= 77.15;
881   dm[11]= 79.2;
882
883   //
884   
885   dm[12]= 251.0;
886   dm[13]= 77.15;
887   dm[14]= 79.2;
888
889   //
890
891   dm[15]= 251.0;
892   dm[16]= 66.0;
893   dm[17]= 79.2;
894
895   //
896
897   dm[18]= 253.0;
898   dm[19]= 66.0;
899   dm[20]= 79.2;
900
901   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
902
903   // Daughter volumes
904
905   // Tpc Sandwich 17 - Tedlar
906
907   dm[0]= 77.15;
908   dm[1]= 79.2;
909   dm[2]= 251.7;
910
911   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
912
913   // Tpc Sandwich 18 - Kevlar
914
915   dm[0]+= 5.e-3;
916   dm[1]-= 5.e-3;
917
918   gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3);
919
920
921   // Tpc Sandwich 19 - NOMEX
922
923   dm[0]+= 0.02;
924   dm[1]-= 0.02;
925
926   gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
927
928   // 19->18->17
929
930   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
931   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
932
933   // TS17->TIFC
934
935   gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
936
937   // TPC Rings
938
939   dm[0]= 70.7;
940   dm[1]= 79.2;
941   dm[2]= 0.3;
942
943   gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
944
945   dm[0]= 66.0;
946   dm[1]= 70.2;  
947
948   gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
949
950   dm[0]= 75.3;
951   dm[1]= 79.2;  
952
953   gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);  
954
955   // TICL->TIIN
956
957   gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
958
959   // TICR->TIIN
960
961   gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
962
963   // TIFC->TIIN
964
965   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
966
967   // Tpc Sandwich 21 - Al (central barrel)
968
969   dm[0]= 60.65;
970   dm[1]= 61.21;
971   dm[2]= 75.2;
972
973   gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
974
975   // Tpc Sandwich 22 - Tedlar (central barrel) 
976
977   dm[0]+= 5.e-3;
978   dm[1]-= 5.e-3;
979
980   gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3); 
981
982   // Tpc Sandwich 23 - Kevlar (central barrel) 
983
984   dm[0]+= 5.e-3;
985   dm[1]-= 5.e-3;
986
987   gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3); 
988
989   // Tpc Sandwich 24 - NOMEX (central barrel) 
990
991   dm[0]+= 0.02;
992   dm[1]-= 0.02;
993
994   gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3); 
995
996   // 24->23->22->21
997
998   gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
999   gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
1000   gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
1001
1002   gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1003
1004   // put everything into the TPC 
1005
1006   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1007
1008
1009   //---------------------------------------------------------
1010   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1011   //  and its daughters (HV membrane, rods, readout chambers)
1012   //---------------------------------------------------------
1013
1014   dm[0]= 79.2;
1015   dm[1]= 258.0;
1016   dm[2]= 253.6;
1017
1018   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);  
1019
1020   // sector opening angles
1021
1022   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1023
1024   // sector angle shift
1025
1026   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1027
1028   // number of sectors
1029
1030   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1031   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1032
1033   // All above parameters are identical for inner and outer
1034   // sectors. The distinction is kept for the historical reasons
1035   // and eventually will disappear.
1036
1037   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1038   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1039   Float_t space;
1040
1041   //-------------------------------------------------------------------------
1042   //   Tpc Inner Readout Chambers 
1043   //-------------------------------------------------------------------------
1044
1045   dm[0]= 14.483;
1046   dm[1]= 23.3345; 
1047   dm[2]= 1.6; // thickness
1048   dm[3]= 25.1;
1049
1050   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1051
1052   // this volume will be positioned in the empty space
1053   // of the end-cap to avoid overlaps
1054
1055   dm[0]= 13.7305;
1056   dm[1]= 21.1895;
1057   dm[2]= 2.25;
1058   dm[3]= 21.15;
1059
1060   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1061
1062
1063   //------------------------------------------------
1064   // Tpc Inner readout chamber Pad Plane
1065   //------------------------------------------------
1066
1067   dm[0]= 14.483;
1068   dm[1]= 23.3345;
1069   dm[2]= 0.5;
1070   dm[3]= 25.1;
1071
1072   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1073
1074   // 
1075
1076   dm[0] -= 1.218511934;
1077   dm[1] -= 1.218511934;
1078   dm[2] = 0.35;
1079
1080   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
1081
1082   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1083
1084   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1085
1086
1087   //----------------------------------------------
1088   // Tpc Readout Chambers Empty spaces - for both
1089   // inner and outer sectors
1090   //----------------------------------------------
1091
1092   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1093
1094   // Inner sector - 4 spaces
1095
1096
1097   dm[3] = 4.7625;
1098   dm[0] = 12.472;
1099
1100   Float_t rr = 90.52;
1101   Float_t zz;
1102
1103   zz= -12.7875;
1104   
1105   space = rr*tanAlpha-dm[0];
1106
1107   for(Int_t nsLow=0;nsLow<4;nsLow++){
1108
1109     rr += 9.525;
1110     dm[1]= rr*tanAlpha - space;  
1111
1112     dm[2]=0.8;
1113
1114     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1115
1116     //
1117
1118     dm[2] = 1.2;
1119
1120     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1121
1122     rr += 0.4;
1123     dm[0] = rr*tanAlpha - space;
1124     zz += (0.4+9.525); 
1125
1126   }
1127
1128   dm[0]= 12.472;
1129   // dm[1] - this is the dm[1] from the previous TRCE
1130   dm[2]= 1.05;
1131   dm[3]= 19.65;
1132
1133   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);   
1134
1135   //
1136   // TPc Space for Connectors
1137   //
1138
1139   dm[0]= .3;
1140   dm[1]= .3;
1141   dm[2]= 4.5;
1142
1143   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1144
1145   // TPC Connectors
1146
1147   dm[0]= .25;
1148   dm[1]= .15;
1149   dm[2]= 3.75;
1150
1151   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3); 
1152
1153   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1154
1155   zz = -12.7875;
1156
1157
1158   Float_t alpha;
1159   Float_t astep;
1160
1161   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1162
1163   // inner part of the inner sector - 2 x 20 holes
1164   
1165   astep = 20.00096874/19.;
1166
1167   alpha = 10.00048437-astep;
1168
1169   Float_t x1,x2;
1170
1171     x1 = 13.31175725;
1172     x1 -= 0.996357832; 
1173
1174     x2 = 15.06180253;
1175     x2 -= 1.163028812;
1176
1177   Int_t ncon;
1178
1179   for(ncon=0;ncon<20;ncon++){
1180
1181     phi1 = 0.;
1182     theta1 = 90.+alpha;
1183     phi2=90.;
1184     theta2 = 90.;
1185     phi3 = (alpha>0) ? 0. : 180.;
1186     theta3 = TMath::Abs(alpha);
1187
1188     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1189
1190  
1191
1192     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1193     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1194
1195
1196     x1 -= 1.296357833;
1197     x2 -= 1.463028812;
1198
1199     alpha -= astep;   
1200     nRotMat++; 
1201
1202   }
1203
1204   // outer part of the inner sector - 2 x 25 holes
1205
1206    astep = 20.00096874/24.; 
1207    alpha = 10.00048437-astep;
1208
1209    x1 = 16.81184781;
1210    x1 -= 1.016295986;
1211
1212    x2 = 18.5618931;
1213    x2 -= 1.150914854;
1214
1215   for(ncon=0;ncon<25;ncon++){
1216
1217     phi1 = 0.;
1218     theta1 = 90.+alpha;
1219     phi2=90.;
1220     theta2 = 90.;
1221     phi3 = (alpha>0) ? 0. : 180.;
1222     theta3 = TMath::Abs(alpha);
1223
1224     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1225
1226  
1227
1228     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1229     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1230
1231
1232     x1 -= 1.316295986;
1233     x2 -= 1.450914854;
1234
1235     alpha -= astep;   
1236     nRotMat++; 
1237
1238   }  
1239
1240   //--------------------------------------------------------------------------
1241   //  TPC Outer Readout Chambers
1242   //  this is NOT a final design
1243   //--------------------------------------------------------------------------
1244
1245   dm[0]= 23.3875;
1246   dm[1]= 43.524;
1247   dm[2]= 1.5; //thickness
1248   dm[3]= 57.1;
1249
1250   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1251
1252   //------------------------------------------------
1253   // Tpc Outer readout chamber Pad Plane
1254   //------------------------------------------------
1255
1256   dm[2]= 0.5;
1257
1258   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1259
1260   dm[0] -= 1.218511934;
1261   dm[1] -= 1.218511934;
1262   dm[2] = 0.35;
1263
1264   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1265
1266   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1267
1268   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1269
1270   // empty space
1271
1272   dm[0]= 21.035;
1273   dm[1]= 38.7205;
1274   dm[2]= 0.7; 
1275   dm[3]= 50.15;
1276
1277   gMC->Gsposp("TRCE",10,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);  
1278
1279   dm[0]= 22.2935;
1280   dm[1]= 40.5085;
1281   dm[2]= 2.25;
1282   dm[3]= 51.65;
1283
1284   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1285
1286   dm[0]= 21.35;
1287   dm[1]= 38.7205;
1288   dm[2]= 2.25;
1289   dm[3]= 50.15;
1290
1291   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4); 
1292
1293   //-----------------------------------------------
1294   // Tpc Services Support Wheel
1295   //-----------------------------------------------
1296
1297   dm[0]=0.;
1298   dm[1]=360.;
1299   dm[2]=18.;
1300   dm[3]=2.;
1301
1302   dm[4]= -5.;
1303   dm[5]= 77.017;
1304   dm[6]= 255.267;
1305
1306   dm[7]= 5.;
1307   dm[8]= dm[5];
1308   dm[9]= dm[6];
1309
1310   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1311
1312   // Tpc Services Wheel Cover
1313
1314   dm[4]= -0.5;
1315   dm[7]= 0.5;
1316
1317   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1318
1319   // Tpc Service wheel Cover Empty space
1320    
1321   dm[0]= 10.99;
1322   dm[1]= 39.599;
1323   dm[2]= .5;
1324   dm[3]= 81.125;
1325
1326   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1327
1328   // Tpc services Wheel Empty Spaces
1329
1330   dm[0]= 13.18017507;
1331   dm[1]= 44.61045938;
1332   dm[2]= 4.;
1333   dm[3]= 89.125;
1334
1335   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1336
1337   // Tpc Services Wheel Bars
1338
1339   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1340
1341   // bars-> TWES
1342
1343   dm[2]= 4.;
1344   dm[3]= .4;
1345
1346   dm[0]= 13.8149522;
1347   dm[1]= 13.95601379;
1348   
1349   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1350
1351   dm[0]= 43.83462067; 
1352   dm[1]= 43.97568225;
1353
1354   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1355
1356   // TPc ELectronics - right now 30% X0 Si
1357
1358   dm[0]= 14.03813696;
1359   dm[1]= 43.3524075;
1360   dm[2]= 1.404;
1361   dm[3]= 83.125;
1362
1363   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1364   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1365
1366   //--------------------------------------------------------------------------
1367   //  End caps
1368   //--------------------------------------------------------------------------
1369
1370   // TPc Main Wheel - Al
1371
1372   dm[0]= 75.3;
1373   dm[1]= 264.8;
1374   dm[2]= 3.0;
1375
1376   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1377
1378   // TPc Extra Wheel (to avoid overlapping) - Al
1379
1380   dm[0]= 264.8;
1381   dm[1]= 277.0;
1382   dm[2]= 1.95;
1383
1384   gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1385
1386   //--------------------------------------------------------------------------
1387   //  Tpc Empty Space for the Readout chambers
1388   //--------------------------------------------------------------------------  
1389
1390   Float_t rLow= 86.2;
1391   Float_t rUp= 243.5;
1392   Float_t dR = 0.5*(rUp-rLow);
1393
1394   space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1395
1396   dm[0]= rLow*tanAlpha-space;
1397   dm[1]= rUp*tanAlpha-space;
1398   dm[2] = 3.0;
1399   dm[3]= dR;
1400
1401   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1402
1403   // TIC1->TESR
1404
1405   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1406
1407   // TOC1->TESR
1408
1409   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1410
1411   // Tpc Empty Space Bars - Al (daughters of TESR)
1412
1413   Float_t zBar;
1414
1415   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1416
1417   // lower bar
1418
1419   dm[0]= rLow*tanAlpha-space;
1420   dm[1]= 88.7*tanAlpha-space;
1421   dm[2]= 0.95;
1422   dm[3]= 1.275;
1423
1424   zBar = -dR+dm[3];
1425
1426   gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1427
1428   // middle bar
1429
1430   dm[0]= 131.65*tanAlpha-space;
1431   dm[1]= 136.5*tanAlpha-space;
1432   dm[3]= 2.425;
1433
1434   zBar = -dR +131.65+dm[3]-rLow;
1435
1436   gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1437
1438   // upper bar
1439
1440   dm[0]= 240.4*tanAlpha-space;
1441   dm[1]= rUp*tanAlpha-space;
1442   dm[3]= 1.55;
1443
1444   zBar = dR-dm[3];
1445
1446   gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1447
1448   //  positioning of the empty spaces into the main wheel
1449
1450
1451
1452   Float_t rCenter,xc,yc;
1453   Float_t rInner,rOuter; // center of the inner and outer chamber
1454
1455   rCenter = rLow+dR;
1456
1457   rInner = 108.07;
1458   rOuter = 190.68;
1459
1460
1461   for(Int_t ns=0; ns<nInnerSector;ns++){
1462
1463     phi1 = ns * innerOpenAngle + innerAngleShift;
1464     phi1 *= kRaddeg; // in degrees
1465
1466     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1467
1468     if (phi1 > 360.) phi1 -= 360.;
1469
1470     theta1 = 90.;
1471     phi2   = 90.;
1472     theta2 = 180.;
1473     phi3   = ns * innerOpenAngle + innerAngleShift;
1474     phi3 *= kRaddeg; // in degrees
1475
1476     phi3 = (Float_t)TMath::Nint(phi3);
1477       
1478     if(phi3 > 360.) phi3 -= 360.;
1479
1480     theta3 = 90.;
1481
1482     // "holes"->End plate
1483
1484     xc = rCenter*TMath::Cos(phi3*kDegrad);
1485     yc = rCenter*TMath::Sin(phi3*kDegrad);
1486
1487     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1488
1489     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1490
1491     // TSCE->TSWC (services wheel volumes)
1492
1493     xc = 166.142*TMath::Cos(phi3*kDegrad);
1494     yc = 166.142*TMath::Sin(phi3*kDegrad);
1495
1496     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1497     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1498
1499
1500     // readout chambers->TDGN (drift gas)
1501
1502     xc = rInner*TMath::Cos(phi3*kDegrad);
1503     yc = rInner*TMath::Sin(phi3*kDegrad);
1504
1505     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1506      
1507     xc = rOuter*TMath::Cos(phi3*kDegrad);
1508     yc = rOuter*TMath::Sin(phi3*kDegrad);
1509
1510     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1511
1512     nRotMat++;
1513
1514     theta2 = 0.; // reflection
1515
1516     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1517
1518     xc = rInner*TMath::Cos(phi3*kDegrad);
1519     yc = rInner*TMath::Sin(phi3*kDegrad);
1520
1521     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1522
1523     xc = rOuter*TMath::Cos(phi3*kDegrad);
1524     yc = rOuter*TMath::Sin(phi3*kDegrad);
1525
1526     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1527
1528     nRotMat++;
1529
1530   } 
1531
1532   // reflection matrix
1533
1534   theta1 = 90.;
1535   phi1   = 0.;
1536   theta2 = 90.;
1537   phi2   = 270.;
1538   theta3 = 180.;
1539   phi3   = 0.;
1540
1541   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1542
1543
1544   // TPMW->TPC
1545
1546   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1547   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1548   gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1549   gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.65,0,"ONLY");
1550
1551
1552
1553   //-------------------------------------------------------
1554   // Tpc High Voltage Membrane - NOMEX honeycomb
1555   //-------------------------------------------------------
1556
1557   dm[0]=0.,
1558   dm[1]=360.;
1559   dm[2]=18.;
1560   dm[3]=2.;
1561
1562   //
1563
1564   dm[4]= -0.3;
1565   dm[5]= 81.156;
1566   dm[6]= 253.386;
1567
1568   //
1569
1570   dm[7]= 0.3;
1571   dm[8]= dm[5];
1572   dm[9]= dm[6];
1573
1574   gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1575
1576   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1577
1578   //----------------------------------------------------------
1579   // TPc Support Rods - MAKROLON
1580   //----------------------------------------------------------
1581
1582   dm[0]= 0.9;
1583   dm[1]= 1.2;
1584   dm[2]= 126.65;
1585
1586   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1587
1588   for(Int_t nrod=1;nrod<18;nrod++){
1589     Float_t angle=innerOpenAngle*(Float_t)nrod;
1590
1591     xc=82.4*TMath::Cos(angle);
1592     yc=82.4*TMath::Sin(angle);
1593
1594     gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
1595     gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
1596
1597     xc=254.2*TMath::Cos(angle);
1598     yc=254.2*TMath::Sin(angle);
1599
1600     gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
1601     gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");    
1602
1603   }
1604
1605   //----------------------------------------------------------
1606   // Tpc High Voltage rod - MAKROLON + Copper cable
1607   //----------------------------------------------------------
1608
1609   // rod with cable (Left)
1610
1611   dm[0]=0.;
1612   dm[1]=2.25;
1613   dm[2]=126.65;
1614
1615   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1616
1617   // HV cable
1618  
1619   dm[0]=0.;
1620   dm[1]=0.3;
1621   dm[2]=126.65;
1622
1623   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1624
1625   // empty space
1626
1627   dm[0]=0.3;
1628   dm[1]=1.;
1629   dm[2]=126.65;
1630
1631   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1632
1633   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1634   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1635
1636   // rod without cable
1637
1638   dm[0]=1.8;
1639   dm[1]=2.25;
1640   dm[2]=126.65;
1641
1642   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1643
1644   
1645   
1646   gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
1647   gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
1648
1649   gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
1650   gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");  
1651   
1652
1653
1654   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY"); 
1655
1656
1657   // services wheel cover -> wheel
1658
1659
1660   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1661   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1662
1663
1664   // put the wheel into the TPC
1665
1666   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1667   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1668
1669   //
1670
1671   gMC->Gsord("TPMW",6);
1672   gMC->Gsord("TSSW",6);
1673   gMC->Gsord("TSWC",6);
1674
1675   // put the TPC into ALIC (main mother volume)
1676
1677   gMC->Gspos("TPC ",1,"ALIC",0.,0.,0.,0,"ONLY");
1678  
1679 } // end of function
1680
1681
1682 //_____________________________________________________________________________
1683 void AliTPCv0::CreateMaterials()
1684 {
1685   //
1686   // Define materials for the TPC
1687   //
1688   AliTPC::CreateMaterials();
1689 }
1690
1691 //_____________________________________________________________________________
1692 void AliTPCv0::DrawDetector()
1693 {
1694   //
1695   // Draw a shaded view of the Time Projection Chamber version 0
1696   //
1697
1698   // Set everything unseen
1699   gMC->Gsatt("*", "seen", -1);
1700   // 
1701   // Set ALIC mother transparent
1702   gMC->Gsatt("ALIC","SEEN",0);
1703   //
1704   // Set the volumes visible
1705   gMC->Gsatt("TPC ","SEEN",0);
1706   gMC->Gsatt("TOIN","SEEN",1);
1707   gMC->Gsatt("TOIN","COLO",7);
1708   gMC->Gsatt("TPCR","SEEN",0);
1709   gMC->Gsatt("TOCV","SEEN",1);
1710   gMC->Gsatt("TOCV","COLO",4);
1711   gMC->Gsatt("TSA1","SEEN",0);
1712   gMC->Gsatt("TSA2","SEEN",0);
1713   gMC->Gsatt("TSA3","SEEN",0);
1714   gMC->Gsatt("TSA4","SEEN",0);
1715   gMC->Gsatt("TOFC","SEEN",1);
1716   gMC->Gsatt("TOFC","COLO",4);
1717   gMC->Gsatt("TSA5","SEEN",0);
1718   gMC->Gsatt("TSA6","SEEN",0);
1719   gMC->Gsatt("TSA7","SEEN",0);
1720   gMC->Gsatt("TIIN","COLO",7);
1721   gMC->Gsatt("TIIN","SEEN",1);
1722   gMC->Gsatt("TICL","SEEN",0);
1723   gMC->Gsatt("TSA9","SEEN",0);
1724   gMC->Gsatt("TS10","SEEN",0);
1725   gMC->Gsatt("TS11","SEEN",0);
1726   gMC->Gsatt("TS12","SEEN",0);
1727   gMC->Gsatt("TICR","SEEN",0); 
1728   gMC->Gsatt("TS13","SEEN",0);
1729   gMC->Gsatt("TS14","SEEN",0);
1730   gMC->Gsatt("TS15","SEEN",0);
1731   gMC->Gsatt("TS16","SEEN",0);
1732   gMC->Gsatt("TIFC","SEEN",1);
1733   gMC->Gsatt("TIFC","COLO",4); 
1734   gMC->Gsatt("TS17","SEEN",0);
1735   gMC->Gsatt("TS18","SEEN",0);
1736   gMC->Gsatt("TS19","SEEN",0);
1737   gMC->Gsatt("TS21","SEEN",0);
1738   gMC->Gsatt("TS22","SEEN",0);
1739   gMC->Gsatt("TS23","SEEN",0);
1740   gMC->Gsatt("TS24","SEEN",0);
1741   gMC->Gsatt("TDGN","SEEN",0);
1742   gMC->Gsatt("TIRC","SEEN",0);
1743   gMC->Gsatt("TIC1","SEEN",1);
1744   gMC->Gsatt("TIPP","SEEN",0);
1745   gMC->Gsatt("TIC3","SEEN",0);
1746   gMC->Gsatt("TRCE","SEEN",0);
1747   gMC->Gsatt("TPSC","SEEN",0);
1748   gMC->Gsatt("TPCC","SEEN",0);
1749   gMC->Gsatt("TORC","SEEN",0);
1750   gMC->Gsatt("TOPP","SEEN",0);
1751   gMC->Gsatt("TOC3","SEEN",0);
1752   gMC->Gsatt("TOC1","SEEN",1);
1753   gMC->Gsatt("TSSW","SEEN",1);
1754   gMC->Gsatt("TSWC","SEEN",1);
1755   gMC->Gsatt("TSCE","SEEN",1); 
1756   gMC->Gsatt("TSSW","COLO",3);
1757   gMC->Gsatt("TSWC","COLO",3);
1758   gMC->Gsatt("TSCE","COLO",6);
1759   gMC->Gsatt("TWES","SEEN",0);
1760   gMC->Gsatt("TSWB","SEEN",0);
1761   gMC->Gsatt("TPEL","SEEN",0);
1762   gMC->Gsatt("TPMW","SEEN",1);
1763   gMC->Gsatt("TPEW","SEEN",1);
1764   gMC->Gsatt("TESR","SEEN",1);
1765   gMC->Gsatt("TPMW","COLO",12);
1766   gMC->Gsatt("TPEW","COLO",12);
1767   gMC->Gsatt("TWES","COLO",5);
1768   gMC->Gsatt("TIC1","COLO",5);
1769   gMC->Gsatt("TOC1","COLO",5);  
1770   gMC->Gsatt("TESB","SEEN",0);
1771   gMC->Gsatt("THVM","SEEN",1);
1772   gMC->Gsatt("THVM","COLO",11);
1773   gMC->Gsatt("TPSR","SEEN",0);
1774   gMC->Gsatt("THVL","SEEN",0);
1775   gMC->Gsatt("THVC","SEEN",0);
1776   gMC->Gsatt("THVE","SEEN",0);
1777   gMC->Gsatt("THVR","SEEN",0);
1778   //
1779   gMC->Gdopt("hide", "on");
1780   gMC->Gdopt("shad", "on");
1781   gMC->Gsatt("*", "fill", 7);
1782   gMC->SetClipBox(".");
1783   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1784   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1785   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1786   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1787   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1788   gMC->DefaultRange();
1789   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1790   gMC->Gdhead(1111, "Time Projection Chamber");
1791   gMC->Gdman(18, 4, "MAN");
1792   gMC->Gdopt("hide","off");
1793 }
1794
1795 //_____________________________________________________________________________
1796 void AliTPCv0::Init()
1797 {
1798   //
1799   // Initialise Time Projection Chamber version 0
1800   //
1801   printf("TPC version 0 initialized\n");
1802 }
1803
1804 //_____________________________________________________________________________
1805 void AliTPCv0::StepManager()
1806 {
1807   //
1808   // Procedure called at each step in the TPC
1809   //
1810 }