Corrected bug in the outer containment vessel and
[u/mrichter/AliRoot.git] / 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  *                                                                        *
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15
16 /*
17 $Log$
18 Revision 1.21  2000/11/02 16:55:24  kowal2
19 Corrected bug in the inner containment vessel geometry.
20 Thanks to J. Belikov
21
22 Revision 1.20  2000/11/02 07:24:11  kowal2
23 Correction in the TPC geometry.
24 Changes due to the new hit structure.
25
26 Revision 1.19  2000/07/10 20:57:39  hristov
27 Update of TPC code and macros by M.Kowalski
28
29 Revision 1.18  2000/06/30 12:07:50  kowal2
30 Updated from the TPC-PreRelease branch
31
32 Revision 1.17.2.4  2000/06/26 07:39:42  kowal2
33 Changes to obey the coding rules
34
35 Revision 1.17.2.3  2000/06/25 08:38:41  kowal2
36 Splitted from AliTPCtracking
37
38 Revision 1.17.2.2  2000/06/16 12:58:13  kowal2
39 Changed parameter settings
40
41 Revision 1.17.2.1  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 1.17  2000/05/15 10:00:30  kowal2
47 Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova
48
49 Revision 1.16  2000/04/17 09:37:33  kowal2
50 removed obsolete AliTPCDigitsDisplay.C
51
52 Revision 1.15.8.2  2000/04/10 08:29:48  kowal2
53
54 Different pad geometry for different sectors
55 Updated readouch chambers geometry
56
57 Revision 1.15.8.1  2000/04/10 07:56:53  kowal2
58 Not used anymore - removed
59
60 Revision 1.15  1999/11/04 17:28:07  fca
61 Correct barrel part of HV Degrader
62
63 Revision 1.14  1999/10/08 06:27:23  fca
64 Corrected bug in the HV degrader geometry, thanks to G.Tabary
65
66 Revision 1.13  1999/10/04 13:39:54  fca
67 Correct array index problem
68
69 Revision 1.12  1999/09/29 09:24:34  fca
70 Introduction of the Copyright and cvs Log
71
72 */
73
74 //
75 ///////////////////////////////////////////////////////////////////////////////
76 //                                                                           //
77 //  Time Projection Chamber version 1 -- detailed TPC and fast simulation    //
78 //                                                                           // 
79 //Begin_Html
80 /*
81 <img src="picts/AliTPCv1Class.gif">
82 */
83 //End_Html
84 //                                                                           //
85 //                                                                           //
86 ///////////////////////////////////////////////////////////////////////////////
87
88 #include <TMath.h>
89 #include <TGeometry.h>
90 #include <TNode.h>
91 #include <TBRIK.h>
92 #include <TTUBE.h>
93 #include "AliTPCv1.h"
94 #include "AliRun.h"
95 #include <iostream.h>
96 #include <fstream.h>
97
98 #include "AliMC.h"
99 #include "AliConst.h"
100
101 #include "AliTPCParam.h"
102 #include "AliTPCParamSR.h"
103 #include "AliTPCDigitsArray.h"
104 #include <TInterpreter.h>
105
106 ClassImp(AliTPCv1)
107
108 //_____________________________________________________________________________
109
110   AliTPCv1::AliTPCv1(){
111
112   fHitType = 1;
113
114 }
115  
116 //_____________________________________________________________________________
117 AliTPCv1::AliTPCv1(const char *name, const char *title) 
118   :AliTPC(name, title) {
119   //
120   // Standard constructor for Time Projection Chamber
121   //
122   fIdSens=fIdLSec=fIdUSec=0;
123
124   SetGasMixt(2,20,10,-1,0.9,0.1,0.);
125
126   if (fTPCParam)
127      fTPCParam->Write(fTPCParam->GetTitle());
128
129   fHitType=1;
130 }
131
132 //_____________________________________________________________________________
133 void AliTPCv1::CreateGeometry()
134 {
135   //-------------------------------------------------------------
136   // Creates geometry for Time Projection Chamber version 1
137   // Detailed geometry -- Fast simulation - space points
138   // at the pad-rows centers
139   // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
140   //-----------------------------------------------------------
141
142   //Begin_Html
143   /*
144     <img src="picts/AliTPC.gif">
145   */
146   //End_Html
147   //Begin_Html
148   /*
149     <img src="picts/AliTPCv1Tree.gif">
150   */
151   //End_Html
152   Float_t dm[50];
153
154   Int_t *idtmed = fIdtmed->GetArray(); // TPC media
155
156   Int_t idrotm[120]; // rotation matrices
157
158   Int_t nRotMat = 0; // actual number of rotation matrices
159
160
161   //
162   //  Mother volume (Air) - all volumes will be positioned in it
163   //
164   
165   dm[0]=0.;
166   dm[1]=360.;
167   dm[2]=12.;
168
169   //
170  
171   dm[3]= -283.7;
172   dm[4]= 66.2;
173   dm[5]= 277.95;
174
175   //
176
177   dm[6]= -255.6;
178   dm[7]= 66.2;
179   dm[8]= 277.95;
180
181   //
182
183   dm[9]= -73.3;
184   dm[10]= 59.0;
185   dm[11]= 277.95;
186
187   //
188
189   dm[12]= -73.3;
190   dm[13]= 56.9;
191   dm[14]= 277.95;
192
193   //
194
195   dm[15]= -72.1;
196   dm[16]= 56.9;
197   dm[17]= 277.95;
198
199   //
200
201   dm[18]= -72.1;
202   dm[19]= 60.65;
203   dm[20]= 277.95;
204
205   //
206
207   dm[21]= 72.1;
208   dm[22]= 60.65;
209   dm[23]= 277.95;  
210
211   //
212
213   dm[24]= 72.1;
214   dm[25]= 56.9;
215   dm[26]= 277.95;
216
217   //
218
219   dm[27]= 73.3;
220   dm[28]= 56.9;
221   dm[29]= 277.95;
222
223   //
224
225   dm[30]= 73.3;
226   dm[31]= 60.65;
227   dm[32]= 277.95;
228
229   //
230
231   dm[33]= 250.4;
232   dm[34]= 66.0;
233   dm[35]= 277.95;
234
235   //
236
237   dm[36]= 283.7;
238   dm[37]= 66.0;
239   dm[38]= 277.95;
240
241
242   gMC->Gsvolu("TPC ","PCON",idtmed[0],dm,39);
243
244
245   //-------------------------------------------------------------------
246   //  Tpc Outer INsulator (CO2)
247   //-------------------------------------------------------------------
248
249   dm[0]= 0.;
250   dm[1]= 360.;
251   dm[2]= 6.;
252
253   //
254  
255   dm[3]= -253.6;
256   dm[4]= 258.;
257   dm[5]= 266.65;
258
259   //
260
261   dm[6]= -253.;
262   dm[7]= 258.;
263   dm[8]= 266.65;
264
265   dm[9]= -253.;
266   dm[10]= 258.;
267   dm[11]= 277.97;
268
269   dm[12]= 253.6;
270   dm[13]= 258.;
271   dm[14]= 277.97;
272
273   //
274
275   dm[15]= 253.6;
276   dm[16]= 265.2;
277   dm[17]= 277.95;
278
279   //
280
281   dm[18]= 255.6;
282   dm[19]= 265.2;
283   dm[20]= 277.95;
284
285
286   gMC->Gsvolu("TOIN","PCON",idtmed[3],dm,21);
287
288   //---------------------------------------------------------------
289   // shreds (G10) - TPC Rings
290   //---------------------------------------------------------------
291
292   gMC->Gsvolu("TPCR","TUBE",idtmed[12],dm,0);
293
294   dm[0]= 258.;
295   dm[1]= 266.65;
296   dm[2]= 0.3;
297
298   gMC->Gsposp("TPCR",1,"TOIN",0.,0.,-253.3,0,"ONLY",dm,3); // left bottom
299
300   //
301
302   dm[0]= 258.;
303   dm[1]= 270.9;
304   dm[2]= 0.3;
305
306   gMC->Gsposp("TPCR",2,"TOIN",0.,0.,253.3,0,"ONLY",dm,3); // right
307
308   //
309
310   dm[0]= 272.2;
311   dm[1]= 277.95;
312   dm[2]= 0.3;
313
314   gMC->Gsposp("TPCR",3,"TOIN",0.,0.,-250.7,0,"ONLY",dm,3); // left top
315
316   //----------------------------------------------------------------
317   // Tpc Outer Contaiment Vessel  
318   //  mother volume - Al, daughters - composite (sandwich)
319   //----------------------------------------------------------------
320   
321   dm[0]= 0.;
322   dm[1]= 360.;
323   dm[2]=6.;
324
325   //
326
327   dm[3]= -250.4;
328   dm[4]= 272.2;
329   dm[5]= 277.95;
330
331   //
332
333   dm[6]= -248.4;
334   dm[7]= 272.2;
335   dm[8]= 277.95;
336
337   //
338   dm[9]= -248.4;
339   dm[10]= 274.81;
340   dm[11]= 277.95; 
341
342   //
343
344   dm[12]= 253.6;
345   dm[13]= 274.81;
346   dm[14]= 277.95;
347
348   //
349
350   dm[15]= 253.6;
351   dm[16]= 265.2;
352   dm[17]= 277.95;
353
354   // 
355
356   dm[18]= 255.6;
357   dm[19]= 265.2;
358   dm[20]= 277.95;
359
360   gMC->Gsvolu("TOCV","PCON",idtmed[4],dm,21);
361
362   // Daughter volumes
363
364   // Tpc SAndwich 1 - Al
365  
366   dm[0]= 274.81;
367   dm[1]= 277.95;
368   dm[2]= 251.7;
369
370   gMC->Gsvolu("TSA1","TUBE",idtmed[4],dm,3);
371
372   // Tpc SAndwich 2 - Tedlar
373
374   dm[0] += 5.e-3;
375   dm[1] -= 5.e-3;
376   
377   gMC->Gsvolu("TSA2","TUBE",idtmed[9],dm,3);
378
379   // Tpc SAndwich 3 - Kevlar
380
381   dm[0] += 5e-3;
382   dm[1] -= 5.e-3;
383
384   gMC->Gsvolu("TSA3","TUBE",idtmed[5],dm,3);
385
386   // Tpc SAndwich 4 - NOMEX honeycomb
387
388   dm[0] += 0.06;
389   dm[1] -= 0.06;
390
391   gMC->Gsvolu("TSA4","TUBE",idtmed[5],dm,3);  
392   
393   // 4->3->2->1->TOCV
394
395   gMC->Gspos("TSA4",1,"TSA3",0.,0.,0.,0,"ONLY");
396   gMC->Gspos("TSA3",1,"TSA2",0.,0.,0.,0,"ONLY");
397   gMC->Gspos("TSA2",1,"TSA1",0.,0.,0.,0,"ONLY");
398
399   gMC->Gspos("TSA1",1,"TOCV",0.,0.,2.6,0,"ONLY");
400
401   // TCOV-> TOIN
402
403   gMC->Gspos("TOCV",1,"TOIN",0.,0.,0.,0,"ONLY");
404
405   //-------------------------------------------------------
406   //  Tpc Outer Field Cage
407   //  mother volume - Al, daughters - composite (sandwich)
408   //-------------------------------------------------------
409
410   dm[0]=0.;
411   dm[1]=360.;
412   dm[2]=6.;
413
414   dm[3]= -253.;
415   dm[4]= 258.;
416   dm[5]= 277.95;
417
418   //
419
420   dm[6]= -251.;
421   dm[7]= 258.;
422   dm[8]= 277.95;
423
424   //
425  
426   dm[9]= -251.;
427   dm[10]= 258.;
428   dm[11]= 260.05;
429
430   //
431
432   dm[12]= 251.;
433   dm[13]= 258.;
434   dm[14]= 260.05;
435
436   //
437
438   dm[15]= 251.;
439   dm[16]= 258.;
440   dm[17]= 270.9;
441
442   //
443
444   dm[18]= 253.;
445   dm[19]= 258.;
446   dm[20]= 270.9;
447
448   gMC->Gsvolu("TOFC","PCON",idtmed[4],dm,21);  
449
450   // Daughter volumes 
451
452   // Tpc SAndwich 5 - Tedlar
453
454   dm[0]= 258.;
455   dm[1]= 260.05;
456   dm[2]= 251.7;
457
458   gMC->Gsvolu("TSA5","TUBE",idtmed[9],dm,3);
459
460   // Tpc SAndwich 6 - Kevlar
461
462   dm[0] += 5.e-3;
463   dm[1] -= 5.e-3;
464
465   gMC->Gsvolu("TSA6","TUBE",idtmed[5],dm,3);
466
467
468   // Tpc SAndwich 7 - NOMEX
469
470   dm[0] += 0.02;
471   dm[1] -= 0.02;
472
473   gMC->Gsvolu("TSA7","TUBE",idtmed[6],dm,3);    
474
475   // 7->6->5->TOFC
476
477   gMC->Gspos("TSA7",1,"TSA6",0.,0.,0.,0,"ONLY");
478   gMC->Gspos("TSA6",1,"TSA5",0.,0.,0.,0,"ONLY"); 
479
480   gMC->Gspos("TSA5",1,"TOFC",0.,0.,0.,0,"ONLY");
481
482   // TOFC->TOIN
483
484   gMC->Gspos("TOFC",1,"TOIN",0.,0.,0.,0,"ONLY"); 
485
486   // TOIN->TPC
487
488   gMC->Gspos("TOIN",1,"TPC ",0.,0.,0.,0,"ONLY");
489
490   //--------------------------------------------------------------------
491   // Tpc Inner INsulator (CO2)
492   //--------------------------------------------------------------------
493
494
495   dm[0]=0.;
496   dm[1]= 360.;
497   dm[2]= 15.;
498
499   //
500
501   dm[3]= -255.6;
502   dm[4]= 66.2;
503   dm[5]= 74.8;
504
505   //
506
507   Float_t tanL = (66.2-59.0)/(255.6-73.3); // tangent of the left cone part
508
509   dm[6]= -253.6;
510   dm[7]= 59.0+ (253.6-73.3)*tanL;
511   dm[8]= 74.8;
512
513   //
514
515   dm[9]= -253.6;
516   dm[10]= dm[7];
517   dm[11]= 79.2;
518
519   //
520
521   dm[12]= -73.3;
522   dm[13]= 59.0;
523   dm[14]= 79.2;
524
525   //
526
527   dm[15]= -73.3;
528   dm[16]= 56.9;
529   dm[17]= 79.2;
530
531   //
532
533   dm[18]= -72.1;
534   dm[19]= 59.6;
535   dm[20]= 79.2;
536
537   //
538
539   dm[21]= -72.1;
540   dm[22]= 60.65;
541   dm[23]= 79.2;
542
543   //
544
545   dm[24]= 72.1;
546   dm[25]= 60.65;
547   dm[26]= 79.2;  
548
549   //
550
551   dm[27]= 72.1;
552   dm[28]= 59.6;
553   dm[29]= 79.2;
554
555   //
556
557   dm[30]= 73.3;
558   dm[31]= 56.9;
559   dm[32]= 79.2;
560
561   //
562
563   dm[33]= 73.3;
564   dm[34]= 59.0;
565   dm[35]= 79.2;
566
567   //
568
569   dm[36]= 250.4;
570   dm[37]= 66.0;
571   dm[38]= 79.2;
572
573   //
574   
575   dm[39]= 253.0;
576   dm[40]= 66.0;
577   dm[41]= 79.2;
578
579   //
580
581   dm[42]= 253.0;
582   dm[43]= 75.3;
583   dm[44]= 79.2;
584
585   //
586
587   dm[45]= 253.6;
588   dm[46]= 75.3;
589   dm[47]= 79.2;
590
591   gMC->Gsvolu("TIIN","PCON",idtmed[3],dm,48);
592
593
594   //--------------------------------------------------------------------
595   //  Tpc Inner Containment vessel, Left part
596   //  mother volume - Al, daughter - composite (sandwich)
597   //--------------------------------------------------------------------
598
599   dm[0]= 0.;
600   dm[1]= 360.;
601   dm[2]= 8.;
602
603   //
604
605   dm[3]= -255.6;
606   dm[4]= 66.2;
607   dm[5]= 74.8;
608
609   //
610
611   Float_t cosL = 1./TMath::Sqrt(1.+tanL*tanL);
612   Float_t sandThick = 2.14; // cone composite thickness
613
614
615   //
616
617   dm[6]= -253.6;
618   dm[7]= 59.0 + (253.6-73.3)*tanL;
619   dm[8]= 74.8;
620
621   //
622
623   dm[9]= -253.6;
624   dm[10]= dm[7];
625   dm[11]= dm[7]+sandThick/cosL;
626
627   //
628
629   dm[12]= -75.6;
630   dm[13]= 59.0+(75.6-73.3)*tanL;
631   dm[14]= dm[13]+sandThick/cosL;
632
633   //
634
635   dm[15]= -75.6;
636   dm[16]= dm[13];
637   dm[17]= 60.65;
638
639   //
640
641   dm[18]= -73.3;
642   dm[19]= 59.0;
643   dm[20]= 60.65;
644
645   //
646
647   dm[21]= -73.3;
648   dm[22]= 56.9;
649   dm[23]= 60.65;
650
651   //
652
653   dm[24]= -72.1;
654   dm[25]= 56.9;
655   dm[26]= 60.65;
656
657   gMC->Gsvolu("TICL","PCON",idtmed[4],dm,27);
658
659   // Daughter volumes 
660
661   // Tpc SAndwich 9 - Al
662
663   dm[0]= 0.;
664   dm[1]= 360.;
665   dm[2]= 2.;
666
667   //
668
669   dm[3]= - 254.3;
670   dm[4]= 59.0+(254.3-73.3)*tanL;
671   dm[5]= dm[4]+sandThick/cosL;
672
673   //
674
675   dm[6]= -78.3;
676   dm[7]= 59.0+(78.3-73.3)*tanL;
677   dm[8]= dm[7]+sandThick/cosL;
678
679   //
680
681   gMC->Gsvolu("TSA9","PCON",idtmed[4],dm,9);
682
683   // Tpc SAndwich 10 - Tedlar
684
685   dm[4]+= 5.e-3/cosL;
686   dm[5]-= 5.e-3/cosL;
687
688   //
689
690   dm[7]+= 5.e-3/cosL;
691   dm[8]+= 5.e-3/cosL;
692
693   gMC->Gsvolu("TS10","PCON",idtmed[9],dm,9); 
694
695   // Tpc SAndwich 11 - Kevlar
696
697   dm[4]+= 5.e-3/cosL;
698   dm[5]-= 5.e-3/cosL;
699
700   //
701
702   dm[7]+= 5.e-3/cosL;
703   dm[8]+= 5.e-3/cosL;
704
705   gMC->Gsvolu("TS11","PCON",idtmed[5],dm,9); 
706
707   // Tpc SAndwich 12 - NOMEX
708
709   dm[4]+= 0.06/cosL;
710   dm[5]-= 0.06/cosL;
711
712   //
713
714   dm[7]+= 0.06/cosL;
715   dm[8]+= 0.06/cosL;
716
717   gMC->Gsvolu("TS12","PCON",idtmed[6],dm,9);   
718
719   // 12->11->10->9
720
721   gMC->Gspos("TS12",1,"TS11",0.,0.,0.,0,"ONLY");
722   gMC->Gspos("TS11",1,"TS10",0.,0.,0.,0,"ONLY");
723   gMC->Gspos("TS10",1,"TSA9",0.,0.,0.,0,"ONLY");
724
725   // TSA9->TICL
726
727   gMC->Gspos("TSA9",1,"TICL",0.,0.,0.,0,"ONLY");
728  
729   //--------------------------------------------------------------------
730   //  Tpc Inner Containment vessel, Right part
731   //  mother volume - Al, daughter - composite (sandwich)
732   //--------------------------------------------------------------------
733
734   dm[0]= 0.;
735   dm[1]= 360.;
736   dm[2]=8.;
737
738   //
739
740   dm[3]= 72.1;
741   dm[4]= 56.9;
742   dm[5]= 60.65;
743
744   //
745
746   dm[6]= 73.3;
747   dm[7]= 56.9;
748   dm[8]= 60.65;
749
750   //
751
752   dm[9]= 73.3;
753   dm[10]= 59.0;
754   dm[11]= 60.65;
755
756   //
757
758   Float_t tanR = (66.0-59.0)/(250.5-73.3); // to avoid accuracy problems
759   Float_t cosR = 1./TMath::Sqrt(1.+tanR*tanR); //as above
760
761   //
762
763   dm[12]= 75.6;
764   dm[13]= 59.0+(75.6-73.3)*tanR;
765   dm[14]= 60.65;
766
767   //
768
769   dm[15]= 75.6;
770   dm[16]= dm[13];
771   dm[17]= dm[16]+sandThick/cosR;
772
773   //
774
775   dm[18]= 248.4;
776   dm[19]= 59.0+(248.4-73.3)*tanR;
777   dm[20]= dm[19]+sandThick/cosR;
778
779   //
780
781   dm[21]= 248.4;
782   dm[22]= dm[19];
783   dm[23]= 70.2;
784
785   //
786
787   dm[24]= 250.4;
788   dm[25]= 66.0;
789   dm[26]= 70.2;
790
791   gMC->Gsvolu("TICR","PCON",idtmed[4],dm,27);
792
793
794
795   // Daughter volumes 
796
797   // Tpc SAndwich 13 - Al
798
799   dm[0]= 0.;
800   dm[1]= 360.;
801   dm[2]= 2.;
802
803   //
804
805   dm[3]= 78.3;
806   dm[4]= 59.0+(78.3-73.3)*tanR;
807   dm[5]= dm[4]+sandThick/cosR;
808
809   //
810
811   dm[6]= 249.1;
812   dm[7]= 59.0+(249.1-73.3)*tanR;
813   dm[8]= dm[7]+sandThick/cosR;
814
815   //
816
817   gMC->Gsvolu("TS13","PCON",idtmed[4],dm,9);
818
819   // Tpc SAndwich 14 - Tedlar
820
821   dm[4]+= 5.e-3/cosR;
822   dm[5]-= 5.e-3/cosR;
823
824   //
825
826   dm[7]+= 5.e-3/cosR;
827   dm[8]+= 5.e-3/cosR;
828
829   gMC->Gsvolu("TS14","PCON",idtmed[9],dm,9); 
830
831   // Tpc SAndwich 15 - Kevlar
832
833   dm[4]+= 5.e-3/cosR;
834   dm[5]-= 5.e-3/cosR;
835
836   //
837
838   dm[7]+= 5.e-3/cosR;
839   dm[8]+= 5.e-3/cosR;
840
841   gMC->Gsvolu("TS15","PCON",idtmed[5],dm,9); 
842
843   // Tpc SAndwich 16 - NOMEX
844
845   dm[4]+= 0.06/cosR;
846   dm[5]-= 0.06/cosR;
847
848   //
849
850   dm[7]+= 0.06/cosR;
851   dm[8]+= 0.06/cosR;
852
853   gMC->Gsvolu("TS16","PCON",idtmed[6],dm,9);   
854
855   // 16->15->14->13
856
857   gMC->Gspos("TS16",1,"TS15",0.,0.,0.,0,"ONLY");
858   gMC->Gspos("TS15",1,"TS14",0.,0.,0.,0,"ONLY");
859   gMC->Gspos("TS14",1,"TS13",0.,0.,0.,0,"ONLY");
860
861   // TS12->TICR
862
863   gMC->Gspos("TS13",1,"TICR",0.,0.,0.,0,"ONLY");
864
865   //------------------------------------------------------
866   // Tpc Inner Field Cage
867   // mother volume - Al, daughters - composite (sandwich)
868   //------------------------------------------------------
869
870   dm[0]= 0.;
871   dm[1]= 360.;
872   dm[2]=6.;
873
874   //
875
876   dm[3]= -253.0;
877   dm[4]= 70.7;
878   dm[5]= 79.2;
879
880   //
881
882   dm[6]= -251.0;
883   dm[7]= 70.7;
884   dm[8]= 79.2;
885
886   //
887
888   dm[9]= -251.0;
889   dm[10]= 77.15;
890   dm[11]= 79.2;
891
892   //
893   
894   dm[12]= 251.0;
895   dm[13]= 77.15;
896   dm[14]= 79.2;
897
898   //
899
900   dm[15]= 251.0;
901   dm[16]= 66.0;
902   dm[17]= 79.2;
903
904   //
905
906   dm[18]= 253.0;
907   dm[19]= 66.0;
908   dm[20]= 79.2;
909
910   gMC->Gsvolu("TIFC","PCON",idtmed[4],dm,21);
911
912   // Daughter volumes
913
914   // Tpc Sandwich 17 - Tedlar
915
916   dm[0]= 77.15;
917   dm[1]= 79.2;
918   dm[2]= 251.7;
919
920   gMC->Gsvolu("TS17","TUBE",idtmed[9],dm,3);
921
922   // Tpc Sandwich 18 - Kevlar
923
924   dm[0]+= 5.e-3;
925   dm[1]-= 5.e-3;
926
927   gMC->Gsvolu("TS18","TUBE",idtmed[5],dm,3);
928
929
930   // Tpc Sandwich 19 - NOMEX
931
932   dm[0]+= 0.02;
933   dm[1]-= 0.02;
934
935   gMC->Gsvolu("TS19","TUBE",idtmed[6],dm,3);
936
937   // 19->18->17
938
939   gMC->Gspos("TS19",1,"TS18",0.,0.,0.,0,"ONLY");
940   gMC->Gspos("TS18",1,"TS17",0.,0.,0.,0,"ONLY");
941
942   // TS17->TIFC
943
944   gMC->Gspos("TS17",1,"TIFC",0.,0.,0.,0,"ONLY");
945
946   // TPC Rings
947
948   dm[0]= 70.7;
949   dm[1]= 79.2;
950   dm[2]= 0.3;
951
952   gMC->Gsposp("TPCR",4,"TIIN",0.,0.,-253.3,0,"ONLY",dm,3);
953
954   dm[0]= 66.0;
955   dm[1]= 70.2;  
956
957   gMC->Gsposp("TPCR",5,"TIIN",0.,0.,250.7,0,"ONLY",dm,3);
958
959   dm[0]= 75.3;
960   dm[1]= 79.2;  
961
962   gMC->Gsposp("TPCR",6,"TIIN",0.,0.,253.3,0,"ONLY",dm,3);  
963
964   // TICL->TIIN
965
966   gMC->Gspos("TICL",1,"TIIN",0.,0.,0.,0,"ONLY");
967
968   // TICR->TIIN
969
970   gMC->Gspos("TICR",1,"TIIN",0.,0.,0.,0,"ONLY");
971
972   // TIFC->TIIN
973
974   gMC->Gspos("TIFC",1,"TIIN",0.,0.,0.,0,"ONLY");
975
976   // Tpc Sandwich 21 - Al (central barrel)
977
978   dm[0]= 60.65;
979   dm[1]= 61.21;
980   dm[2]= 75.2;
981
982   gMC->Gsvolu("TS21","TUBE",idtmed[4],dm,3);
983
984   // Tpc Sandwich 22 - Tedlar (central barrel) 
985
986   dm[0]+= 5.e-3;
987   dm[1]-= 5.e-3;
988
989   gMC->Gsvolu("TS22","TUBE",idtmed[9],dm,3); 
990
991   // Tpc Sandwich 23 - Kevlar (central barrel) 
992
993   dm[0]+= 5.e-3;
994   dm[1]-= 5.e-3;
995
996   gMC->Gsvolu("TS23","TUBE",idtmed[5],dm,3); 
997
998   // Tpc Sandwich 24 - NOMEX (central barrel) 
999
1000   dm[0]+= 0.02;
1001   dm[1]-= 0.02;
1002
1003   gMC->Gsvolu("TS24","TUBE",idtmed[6],dm,3); 
1004
1005   // 24->23->22->21
1006
1007   gMC->Gspos("TS24",1,"TS23",0.,0.,0.,0,"ONLY");
1008   gMC->Gspos("TS23",1,"TS22",0.,0.,0.,0,"ONLY");
1009   gMC->Gspos("TS22",1,"TS21",0.,0.,0.,0,"ONLY");
1010
1011   gMC->Gspos("TS21",1,"TIIN",0.,0.,0.,0,"ONLY");
1012
1013   // put everything into the TPC 
1014
1015   gMC->Gspos("TIIN",1,"TPC ",0.,0.,0.,0,"ONLY");
1016
1017
1018   //---------------------------------------------------------
1019   //  Tpc Dift Gas volume Nonsensitive (Ne-CO2 90/10)
1020   //  and its daughters (HV membrane, rods, readout chambers)
1021   //---------------------------------------------------------
1022
1023   dm[0]= 79.2;
1024   dm[1]= 258.0;
1025   dm[2]= 253.6;
1026
1027   gMC->Gsvolu("TDGN","TUBE",idtmed[1],dm,3);  
1028
1029   // sector opening angles
1030
1031   Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
1032   Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1033
1034   // sector angle shift
1035
1036   Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
1037
1038   // number of sectors
1039
1040   Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
1041   Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
1042
1043   // All above parameters are identical for inner and outer
1044   // sectors. The distinction is kept for the historical reasons
1045   // and eventually will disappear.
1046
1047   Float_t tanAlpha = TMath::Tan(0.5*innerOpenAngle);
1048   Float_t cosAlpha = TMath::Sqrt(1.+tanAlpha*tanAlpha);
1049   Float_t space;
1050
1051   //-------------------------------------------------------------------------
1052   //   Tpc Inner Readout Chambers 
1053   //-------------------------------------------------------------------------
1054
1055   dm[0]= 14.483;
1056   dm[1]= 23.3345; 
1057   dm[2]= 1.6; // thickness
1058   dm[3]= 25.1;
1059
1060   gMC->Gsvolu("TIRC","TRD1",idtmed[4],dm,4);
1061
1062   // this volume will be positioned in the empty space
1063   // of the end-cap to avoid overlaps
1064
1065   dm[0]= 13.7305;
1066   dm[1]= 21.1895;
1067   dm[2]= 2.25;
1068   dm[3]= 21.15;
1069
1070   gMC->Gsvolu("TIC1","TRD1",idtmed[4],dm,4);
1071
1072
1073   //------------------------------------------------
1074   // Tpc Inner readout chamber Pad Plane
1075   //------------------------------------------------
1076
1077   dm[0]= 14.483;
1078   dm[1]= 23.3345;
1079   dm[2]= 0.5;
1080   dm[3]= 25.1;
1081
1082   gMC->Gsvolu("TIPP","TRD1",idtmed[12],dm,4);
1083
1084   // 
1085
1086   dm[0] -= 1.218511934;
1087   dm[1] -= 1.218511934;
1088   dm[2] = 0.35;
1089
1090   gMC->Gsvolu("TIC3","TRD1",idtmed[1],dm,4);
1091
1092   gMC->Gspos("TIC3",1,"TIPP",0.,0.15,0.,0,"ONLY");
1093
1094   gMC->Gspos("TIPP",1,"TIRC",0.,1.1,0.,0,"ONLY");
1095
1096
1097   //----------------------------------------------
1098   // Tpc Readout Chambers Empty spaces - for both
1099   // inner and outer sectors
1100   //----------------------------------------------
1101
1102   gMC->Gsvolu("TRCE","TRD1",idtmed[0],dm,0);
1103
1104   // Inner sector - 4 spaces
1105
1106
1107   dm[3] = 4.7625;
1108   dm[0] = 12.472;
1109
1110   Float_t rr = 90.52;
1111   Float_t zz;
1112
1113   zz= -12.7875;
1114   
1115   space = rr*tanAlpha-dm[0];
1116
1117   for(Int_t nsLow=0;nsLow<4;nsLow++){
1118
1119     rr += 9.525;
1120     dm[1]= rr*tanAlpha - space;  
1121
1122     dm[2]=0.8;
1123
1124     gMC->Gsposp("TRCE",nsLow+1,"TIRC",0.,-0.8,zz,0,"ONLY",dm,4);
1125
1126     //
1127
1128     dm[2]= 1.2;
1129
1130     gMC->Gsposp("TRCE",nsLow+5,"TIC1",0.,1.05,zz-2.1,0,"ONLY",dm,4);
1131
1132     rr += 0.4;
1133     dm[0] = rr*tanAlpha - space;
1134     zz += (0.4+9.525); 
1135
1136   }
1137
1138   dm[0]= 12.472;
1139   // dm[1] - this is the dm[1] from the previous TRCE
1140   dm[2]= 1.05;
1141   dm[3]= 19.65;
1142
1143   gMC->Gsposp("TRCE",9,"TIC1",0.,-1.2,0.,0,"ONLY",dm,4);  
1144   
1145   //
1146   // TPc Space for Connectors
1147   //
1148
1149   dm[0]= .3;
1150   dm[1]= .3;
1151   dm[2]= 4.5;
1152
1153   gMC->Gsvolu("TPSC","BOX ",idtmed[0],dm,3);
1154
1155   // TPC Connectors
1156
1157   dm[0]= .25;
1158   dm[1]= .15;
1159   dm[2]= 3.75;
1160
1161   gMC->Gsvolu("TPCC","BOX ",idtmed[13],dm,3); 
1162
1163   gMC->Gspos("TPCC",1,"TPSC",0.,0.15,0.,0,"ONLY");
1164
1165   zz = -12.7875;
1166
1167
1168   Float_t alpha;
1169   Float_t astep;
1170
1171   Float_t phi1,phi2,phi3,theta1,theta2,theta3; // rotation angles
1172
1173   // inner part of the inner sector - 2 x 20 holes
1174   
1175   astep = 20.00096874/19.;
1176
1177   alpha = 10.00048437-astep;
1178
1179   Float_t x1,x2;
1180
1181     x1 = 13.31175725;
1182     x1 -= 0.996357832; 
1183
1184     x2 = 15.06180253;
1185     x2 -= 1.163028812;
1186
1187   Int_t ncon;
1188
1189   for(ncon=0;ncon<20;ncon++){
1190
1191     phi1 = 0.;
1192     theta1 = 90.+alpha;
1193     phi2=90.;
1194     theta2 = 90.;
1195     phi3 = (alpha>0) ? 0. : 180.;
1196     theta3 = TMath::Abs(alpha);
1197
1198     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1199
1200  
1201
1202     gMC->Gspos("TPSC",ncon+1,"TIRC",x1,0.3,-12.7875,idrotm[nRotMat],"ONLY");
1203     gMC->Gspos("TPSC",ncon+21,"TIRC",x2,0.3,-2.8625,idrotm[nRotMat],"ONLY");
1204
1205
1206     x1 -= 1.296357833;
1207     x2 -= 1.463028812;
1208
1209     alpha -= astep;   
1210     nRotMat++; 
1211
1212   }
1213
1214   // outer part of the inner sector - 2 x 25 holes
1215
1216    astep = 20.00096874/24.; 
1217    alpha = 10.00048437-astep;
1218
1219    x1 = 16.81184781;
1220    x1 -= 1.016295986;
1221
1222    x2 = 18.5618931;
1223    x2 -= 1.150914854;
1224
1225   for(ncon=0;ncon<25;ncon++){
1226
1227     phi1 = 0.;
1228     theta1 = 90.+alpha;
1229     phi2=90.;
1230     theta2 = 90.;
1231     phi3 = (alpha>0) ? 0. : 180.;
1232     theta3 = TMath::Abs(alpha);
1233
1234     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1235
1236  
1237
1238     gMC->Gspos("TPSC",ncon+41,"TIRC",x1,0.3,7.0625,idrotm[nRotMat],"ONLY");
1239     gMC->Gspos("TPSC",ncon+66,"TIRC",x2,0.3,16.9875,idrotm[nRotMat],"ONLY");
1240
1241
1242     x1 -= 1.316295986;
1243     x2 -= 1.450914854;
1244
1245     alpha -= astep;   
1246     nRotMat++; 
1247
1248   }  
1249
1250   //--------------------------------------------------------------------------
1251   //  TPC Outer Readout Chambers
1252   //  this is NOT a final design
1253   //--------------------------------------------------------------------------
1254
1255   dm[0]= 23.3875;
1256   dm[1]= 43.524;
1257   dm[2]= 1.5; //thickness
1258   dm[3]= 57.1;
1259
1260   gMC->Gsvolu("TORC","TRD1",idtmed[4],dm,4);
1261
1262   //------------------------------------------------
1263   // Tpc Outer readout chamber Pad Plane
1264   //------------------------------------------------
1265
1266   dm[2]= 0.5;
1267
1268   gMC->Gsvolu("TOPP","TRD1",idtmed[12],dm,4);
1269
1270   dm[0] -= 1.218511934;
1271   dm[1] -= 1.218511934;
1272   dm[2] = 0.35;
1273
1274   gMC->Gsvolu("TOC3","TRD1",idtmed[1],dm,4);
1275
1276   gMC->Gspos("TOC3",1,"TOPP",0.,0.15,0.,0,"ONLY");
1277
1278   gMC->Gspos("TOPP",1,"TORC",0.,1.0,0.,0,"ONLY");
1279
1280   // empty space
1281
1282
1283   dm[0]= 21.035;
1284   dm[1]= 38.7205;
1285   dm[2]= 0.7; 
1286   dm[3]= 50.15;
1287
1288   gMC->Gsposp("TRCE",11,"TORC",0.,-0.8,-2.15,0,"ONLY",dm,4);  
1289
1290   dm[0]= 22.2935;
1291   dm[1]= 40.5085;
1292   dm[2]= 2.25;
1293   dm[3]= 51.65;
1294
1295   gMC->Gsvolu("TOC1","TRD1",idtmed[4],dm,4);
1296
1297
1298   dm[0]= 21.35;
1299   dm[1]= 38.7205;
1300   dm[2]= 2.25;
1301   dm[3]= 50.15;
1302
1303   gMC->Gsposp("TRCE",11,"TOC1",0.,0.,0.,0,"ONLY",dm,4); 
1304
1305
1306   //-----------------------------------------------
1307   // Tpc Services Support Wheel
1308   //-----------------------------------------------
1309
1310   dm[0]=0.;
1311   dm[1]=360.;
1312   dm[2]=18.;
1313   dm[3]=2.;
1314
1315   dm[4]= -5.;
1316   dm[5]= 77.017;
1317   dm[6]= 255.267;
1318
1319   dm[7]= 5.;
1320   dm[8]= dm[5];
1321   dm[9]= dm[6];
1322
1323   gMC->Gsvolu("TSSW","PGON",idtmed[4],dm,10);
1324
1325   // Tpc Services Wheel Cover
1326
1327   dm[4]= -0.5;
1328   dm[7]= 0.5;
1329
1330   gMC->Gsvolu("TSWC","PGON",idtmed[4],dm,10);
1331
1332   // Tpc Service wheel Cover Empty space
1333    
1334   dm[0]= 10.99;
1335   dm[1]= 39.599;
1336   dm[2]= .5;
1337   dm[3]= 81.125;
1338
1339   gMC->Gsvolu("TSCE","TRD1",idtmed[0],dm,4);
1340
1341   // Tpc services Wheel Empty Spaces
1342
1343   dm[0]= 13.18017507;
1344   dm[1]= 44.61045938;
1345   dm[2]= 4.;
1346   dm[3]= 89.125;
1347
1348   gMC->Gsvolu("TWES","TRD1",idtmed[0],dm,4);
1349
1350   // Tpc Services Wheel Bars
1351
1352   gMC->Gsvolu("TSWB","TRD1",idtmed[4],dm,0);
1353
1354   // bars-> TWES
1355
1356   dm[2]= 4.;
1357   dm[3]= .4;
1358
1359   dm[0]= 13.8149522;
1360   dm[1]= 13.95601379;
1361   
1362   gMC->Gsposp("TSWB",1,"TWES",0.,0.,-85.125,0,"ONLY",dm,4);
1363
1364   dm[0]= 43.83462067; 
1365   dm[1]= 43.97568225;
1366
1367   gMC->Gsposp("TSWB",2,"TWES",0.,0.,85.125,0,"ONLY",dm,4);
1368
1369   // TPc ELectronics - right now 30% X0 Si
1370
1371   dm[0]= 14.03813696;
1372   dm[1]= 43.3524075;
1373   dm[2]= 1.404;
1374   dm[3]= 83.125;
1375
1376   gMC->Gsvolu("TPEL","TRD1",idtmed[11],dm,4);
1377   gMC->Gspos("TPEL",1,"TWES",0.,0.,0.,0,"ONLY");
1378
1379   //--------------------------------------------------------------------------
1380   //  End caps
1381   //--------------------------------------------------------------------------
1382
1383   // TPc Main Wheel - Al
1384
1385   dm[0]= 75.3;
1386   dm[1]= 264.8;
1387   dm[2]= 3.0;
1388
1389   gMC->Gsvolu("TPMW","TUBE",idtmed[4],dm,3);
1390
1391   // TPc Extra Wheel (to avoid overlapping) - Al
1392
1393   dm[0]= 264.8;
1394   dm[1]= 277.0;
1395   dm[2]= 1.95;
1396
1397   gMC->Gsvolu("TPEW","TUBE",idtmed[4],dm,3);
1398
1399   //--------------------------------------------------------------------------
1400   //  Tpc Empty Space for the Readout chambers
1401   //--------------------------------------------------------------------------  
1402
1403   Float_t rLow= 86.2;
1404   Float_t rUp= 243.5;
1405   Float_t dR = 0.5*(rUp-rLow);
1406
1407   space= 1.4/cosAlpha; // wheel ribs are 2.8 cm wide
1408
1409   dm[0]= rLow*tanAlpha-space;
1410   dm[1]= rUp*tanAlpha-space;
1411   dm[2]= 3.0;
1412   dm[3]= dR;
1413
1414   gMC->Gsvolu("TESR","TRD1",idtmed[0],dm,4);
1415
1416   // TIC1->TESR
1417
1418
1419   gMC->Gspos("TIC1",1,"TESR",0.,0.75,-dR+23.97,0,"ONLY");
1420
1421
1422   // TOC1->TESR
1423
1424   gMC->Gspos("TOC1",1,"TESR",0.,0.75,dR-55.02,0,"ONLY");
1425
1426   // Tpc Empty Space Bars - Al (daughters of TESR)
1427
1428   Float_t zBar;
1429
1430   gMC->Gsvolu("TESB","TRD1",idtmed[4],dm,0);
1431
1432   // lower bar
1433
1434   dm[0]= rLow*tanAlpha-space;
1435   dm[1]= 88.7*tanAlpha-space;
1436   dm[2]= 0.95;
1437   dm[3]= 1.275;
1438
1439   zBar = -dR+dm[3];
1440
1441   gMC->Gsposp("TESB",1,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1442
1443   // middle bar
1444
1445   dm[0]= 131.65*tanAlpha-space;
1446   dm[1]= 136.5*tanAlpha-space;
1447   dm[3]= 2.425;
1448
1449   zBar = -dR +131.65+dm[3]-rLow;
1450
1451   gMC->Gsposp("TESB",2,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1452
1453   // upper bar
1454
1455   dm[0]= 240.4*tanAlpha-space;
1456   dm[1]= rUp*tanAlpha-space;
1457   dm[3]= 1.55;
1458
1459   zBar = dR-dm[3];
1460
1461   gMC->Gsposp("TESB",3,"TESR",0.,2.05,zBar,0,"ONLY",dm,4);
1462
1463   //------------------------------------------------------
1464   //  TPc Lower "S" Sectors 
1465   //------------------------------------------------------
1466   
1467   Float_t deadSpace;
1468
1469
1470   Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow();
1471   Float_t inSecUpEdge =  fTPCParam->GetInnerRadiusUp();
1472
1473   dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1474   dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01;
1475   dm[2] = 0.5*(250. - 0.3);
1476   dm[3] = 0.5*(inSecUpEdge-inSecLowEdge);  
1477
1478   gMC->Gsvolu("TPLS", "TRD1", idtmed[1], dm, 4); // nonsensitive 
1479
1480   //----------------------------------------------------------
1481   //  TPc Upper Sectors
1482   //----------------------------------------------------------
1483
1484   Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow();
1485   Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp();
1486
1487   dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;  
1488   dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-0.01;  
1489   dm[2] = 0.5*(250. - 0.3);
1490   dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge);
1491
1492   gMC->Gsvolu("TPUS", "TRD1", idtmed[1], dm, 4); // nonsensitive   
1493
1494   //--------------------------------------------------------
1495   // TPc Sensitive Strips, the same for S and L sectors
1496   //--------------------------------------------------------
1497
1498   gMC->Gsvolu("TPSS","TRD1",idtmed[2],dm,0); // sensitive
1499
1500   Int_t nofStrips,nstr;
1501   Float_t r1,r2,zs;
1502   Float_t stripThick = 0.01; // 100 microns
1503
1504   // inner sector
1505
1506   nofStrips = fTPCParam->GetNRowLow();
1507   deadSpace = fTPCParam->GetInnerWireMount();
1508
1509   dm[2] = 0.5*(250. - 0.3);
1510   dm[3] = 0.5 * stripThick;
1511
1512   for(nstr=0;nstr<nofStrips;nstr++){
1513
1514     r1 = fTPCParam->GetPadRowRadiiLow(nstr);
1515     r2 = r1 + stripThick;     
1516     dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1517     dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - deadSpace;
1518     zs = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge);
1519     zs += r1;
1520     zs += dm[3];
1521     
1522     gMC->Gsposp("TPSS", nstr+1, "TPLS", 0., 0., zs, 0, "ONLY", dm, 4);
1523
1524   }
1525
1526   Int_t nsSave = nofStrips;
1527
1528   // outer sector
1529
1530   nofStrips = fTPCParam->GetNRowUp();
1531   deadSpace = fTPCParam->GetOuterWireMount();
1532
1533   dm[2] = 0.5*(250. - 0.3);
1534   dm[3] = 0.5 * stripThick;
1535   
1536    for(nstr=0;nstr<nofStrips;nstr++){
1537     
1538     r1 = fTPCParam->GetPadRowRadiiUp(nstr); 
1539     r2 = r1 + stripThick;
1540     dm[0] = r1 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1541     dm[1] = r2 * TMath::Tan(0.5*outerOpenAngle) - deadSpace;
1542     zs = -ouSecLowEdge -0.5*(ouSecUpEdge-ouSecLowEdge);
1543     zs += r1;
1544     zs += dm[3];
1545
1546     gMC->Gsposp("TPSS", nstr+1+nsSave, "TPUS", 0., 0., zs, 0, "ONLY", dm, 4);
1547
1548    } 
1549   
1550
1551   //-------------------------------------------------------
1552   //  positioning of the empty spaces into the main wheel
1553   //  and readout chambers and sectors into the drift gas
1554   //-------------------------------------------------------
1555
1556   Float_t rCenter,xc,yc;
1557   Float_t rInner,rOuter; // center of the inner and outer chamber
1558
1559   rCenter = rLow+dR;
1560
1561   rInner = 108.07;
1562   rOuter = 190.68;
1563
1564   for(Int_t ns=0; ns<nInnerSector;ns++){
1565
1566     phi1 = ns * innerOpenAngle + innerAngleShift;
1567     phi1 *= kRaddeg; // in degrees
1568
1569     phi1 = (Float_t)TMath::Nint(phi1) + 270.;
1570
1571     if (phi1 > 360.) phi1 -= 360.;
1572
1573     theta1 = 90.;
1574     phi2   = 90.;
1575     theta2 = 180.;
1576     phi3   = ns * innerOpenAngle + innerAngleShift;
1577     phi3 *= kRaddeg; // in degrees
1578
1579     phi3 = (Float_t)TMath::Nint(phi3);
1580       
1581     if(phi3 > 360.) phi3 -= 360.;
1582
1583     theta3 = 90.;
1584
1585     // "holes"->End plate
1586
1587     xc = rCenter*TMath::Cos(phi3*kDegrad);
1588     yc = rCenter*TMath::Sin(phi3*kDegrad);
1589
1590     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1591
1592     gMC->Gspos("TESR",ns+1,"TPMW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1593
1594     // TSCE->TSWC (services wheel volumes)
1595
1596     xc = 166.142*TMath::Cos(phi3*kDegrad);
1597     yc = 166.142*TMath::Sin(phi3*kDegrad);
1598
1599     gMC->Gspos("TSCE",ns+1,"TSWC",xc,yc,0.,idrotm[nRotMat],"ONLY");
1600     gMC->Gspos("TWES",ns+1,"TSSW",xc,yc,0.,idrotm[nRotMat],"ONLY");
1601
1602
1603     // readout chambers->TDGN (drift gas)
1604
1605     xc = rInner*TMath::Cos(phi3*kDegrad);
1606     yc = rInner*TMath::Sin(phi3*kDegrad);
1607
1608     gMC->Gspos("TIRC",ns+1,"TDGN",xc,yc,252.,idrotm[nRotMat],"ONLY");
1609
1610     // here lower sectors 
1611
1612     gMC->Gspos("TPLS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
1613     gMC->Gspos("TPLS",ns+nInnerSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
1614      
1615     xc = rOuter*TMath::Cos(phi3*kDegrad);
1616     yc = rOuter*TMath::Sin(phi3*kDegrad);
1617
1618     gMC->Gspos("TORC",ns+1,"TDGN",xc,yc,252.1,idrotm[nRotMat],"ONLY");
1619
1620     // here upper sectors 
1621
1622     gMC->Gspos("TPUS",ns+1,"TDGN",xc,yc,125.15,idrotm[nRotMat],"ONLY");
1623     gMC->Gspos("TPUS",ns+nOuterSector+1,"TDGN",xc,yc,-125.15,idrotm[nRotMat],"ONLY");
1624
1625     nRotMat++;
1626
1627     theta2 = 0.; // reflection
1628
1629     AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1630
1631     xc = rInner*TMath::Cos(phi3*kDegrad);
1632     yc = rInner*TMath::Sin(phi3*kDegrad);
1633
1634     gMC->Gspos("TIRC",ns+nInnerSector+1,"TDGN",xc,yc,-252.,idrotm[nRotMat],"ONLY");
1635
1636     xc = rOuter*TMath::Cos(phi3*kDegrad);
1637     yc = rOuter*TMath::Sin(phi3*kDegrad);
1638
1639     gMC->Gspos("TORC",ns+nOuterSector+1,"TDGN",xc,yc,-252.1,idrotm[nRotMat],"ONLY");
1640
1641     nRotMat++;
1642
1643   } 
1644
1645   // reflection matrix
1646
1647   theta1 = 90.;
1648   phi1   = 0.;
1649   theta2 = 90.;
1650   phi2   = 270.;
1651   theta3 = 180.;
1652   phi3   = 0.;
1653
1654   AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
1655
1656
1657   // TPMW->TPC
1658
1659   gMC->Gspos("TPMW",1,"TPC ",0.,0.,256.6,0,"ONLY");
1660   gMC->Gspos("TPMW",2,"TPC ",0.,0.,-256.6,idrotm[nRotMat],"ONLY");
1661   gMC->Gspos("TPEW",1,"TPC ",0.,0.,257.65,0,"ONLY");
1662   gMC->Gspos("TPEW",2,"TPC ",0.,0.,-257.5,0,"ONLY");
1663
1664
1665
1666   //-------------------------------------------------------
1667   // Tpc High Voltage Membrane - NOMEX honeycomb
1668   //-------------------------------------------------------
1669
1670   dm[0]=0.,
1671   dm[1]=360.;
1672   dm[2]=18.;
1673   dm[3]=2.;
1674
1675   //
1676
1677   dm[4]= -0.3;
1678   dm[5]= 81.156;
1679   dm[6]= 253.386;
1680
1681   //
1682
1683   dm[7]= 0.3;
1684   dm[8]= dm[5];
1685   dm[9]= dm[6];
1686
1687   gMC->Gsvolu("THVM","PGON",idtmed[6],dm,10);
1688
1689   gMC->Gspos("THVM",1,"TDGN",0.,0.,0.,0,"ONLY");
1690
1691   //----------------------------------------------------------
1692   // TPc Support Rods - MAKROLON
1693   //----------------------------------------------------------
1694
1695   dm[0]= 0.9;
1696   dm[1]= 1.2;
1697   dm[2]= 126.65;
1698
1699   gMC->Gsvolu("TPSR","TUBE",idtmed[7],dm,3);
1700
1701   for(Int_t nrod=1;nrod<18;nrod++){
1702     Float_t angle=innerOpenAngle*(Float_t)nrod;
1703
1704     xc=82.4*TMath::Cos(angle);
1705     yc=82.4*TMath::Sin(angle);
1706
1707     gMC->Gspos("TPSR",nrod,"TDGN",xc,yc,126.95,0,"ONLY");
1708     gMC->Gspos("TPSR",nrod+17,"TDGN",xc,yc,-126.95,0,"ONLY");
1709
1710     xc=254.2*TMath::Cos(angle);
1711     yc=254.2*TMath::Sin(angle);
1712
1713     gMC->Gspos("TPSR",nrod+34,"TDGN",xc,yc,126.95,0,"ONLY");
1714     gMC->Gspos("TPSR",nrod+51,"TDGN",xc,yc,-126.95,0,"ONLY");    
1715
1716   }
1717
1718   //----------------------------------------------------------
1719   // Tpc High Voltage rod - MAKROLON + Copper cable
1720   //----------------------------------------------------------
1721
1722   // rod with cable (Left)
1723
1724   dm[0]=0.;
1725   dm[1]=2.25;
1726   dm[2]=126.65;
1727
1728   gMC->Gsvolu("THVL","TUBE",idtmed[7],dm,3);
1729
1730   // HV cable
1731  
1732   dm[0]=0.;
1733   dm[1]=0.3;
1734   dm[2]=126.65;
1735
1736   gMC->Gsvolu("THVC","TUBE",idtmed[10],dm,3);
1737
1738   // empty space
1739
1740   dm[0]=0.3;
1741   dm[1]=1.;
1742   dm[2]=126.65;
1743
1744   gMC->Gsvolu("THVE","TUBE",idtmed[1],dm,3);
1745
1746   gMC->Gspos("THVC",1,"THVL",0.,0.,0.,0,"ONLY");
1747   gMC->Gspos("THVE",1,"THVL",0.,0.,0.,0,"ONLY");
1748
1749   // rod without cable
1750
1751   dm[0]=1.8;
1752   dm[1]=2.25;
1753   dm[2]=126.65;
1754
1755   gMC->Gsvolu("THVR","TUBE",idtmed[7],dm,3);
1756
1757   
1758   
1759   gMC->Gspos("THVL",1,"TDGN",82.4,0.,-126.95,0,"ONLY");
1760   gMC->Gspos("THVL",2,"TDGN",254.2,0.,-126.95,0,"ONLY");
1761
1762   gMC->Gspos("THVR",1,"TDGN",82.4,0.,126.95,0,"ONLY");
1763   gMC->Gspos("THVR",2,"TDGN",254.2,0.,126.95,0,"ONLY");  
1764   
1765
1766
1767   gMC->Gspos("TDGN",1,"TPC ",0.,0.,0.,0,"ONLY"); 
1768
1769   // services wheel cover -> wheel
1770
1771
1772   gMC->Gspos("TSWC",1,"TSSW",0.,0.,4.5,0,"ONLY");
1773   gMC->Gspos("TSWC",2,"TSSW",0.,0.,-4.5,0,"ONLY");
1774
1775
1776   // put the wheel into the TPC
1777
1778   gMC->Gspos("TSSW",1,"TPC ",0.,0.,278.7,0,"ONLY");
1779   gMC->Gspos("TSSW",2,"TPC ",0.,0.,-278.7,0,"ONLY");
1780
1781   gMC->Gsord("TPMW",6);
1782   gMC->Gsord("TPLS",3);
1783   gMC->Gsord("TPUS",3);
1784   gMC->Gsord("TDGN",6);
1785   gMC->Gsord("TSSW",6);
1786   gMC->Gsord("TSWC",6);
1787
1788   // put the TPC into ALIC (main mother volume)
1789
1790   gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
1791
1792
1793 } // end of function
1794
1795 //_____________________________________________________________________________
1796 void AliTPCv1::DrawDetector()
1797 {
1798   //
1799   // Draw a shaded view of the Time Projection Chamber version 1
1800   //
1801
1802   // Set everything unseen
1803   gMC->Gsatt("*", "seen", -1);
1804   // 
1805   // Set ALIC mother transparent
1806   gMC->Gsatt("ALIC","SEEN",0);
1807   //
1808   // Set the volumes visible
1809   gMC->Gsatt("TPC ","SEEN",0);
1810   gMC->Gsatt("TOIN","SEEN",1);
1811   gMC->Gsatt("TOIN","COLO",7);
1812   gMC->Gsatt("TPCR","SEEN",0);
1813   gMC->Gsatt("TOCV","SEEN",1);
1814   gMC->Gsatt("TOCV","COLO",4);
1815   gMC->Gsatt("TSA1","SEEN",0);
1816   gMC->Gsatt("TSA2","SEEN",0);
1817   gMC->Gsatt("TSA3","SEEN",0);
1818   gMC->Gsatt("TSA4","SEEN",0);
1819   gMC->Gsatt("TOFC","SEEN",1);
1820   gMC->Gsatt("TOFC","COLO",4);
1821   gMC->Gsatt("TSA5","SEEN",0);
1822   gMC->Gsatt("TSA6","SEEN",0);
1823   gMC->Gsatt("TSA7","SEEN",0);
1824   gMC->Gsatt("TIIN","COLO",7);
1825   gMC->Gsatt("TIIN","SEEN",1);
1826   gMC->Gsatt("TICL","SEEN",0);
1827   gMC->Gsatt("TSA9","SEEN",0);
1828   gMC->Gsatt("TS10","SEEN",0);
1829   gMC->Gsatt("TS11","SEEN",0);
1830   gMC->Gsatt("TS12","SEEN",0);
1831   gMC->Gsatt("TICR","SEEN",0); 
1832   gMC->Gsatt("TS13","SEEN",0);
1833   gMC->Gsatt("TS14","SEEN",0);
1834   gMC->Gsatt("TS15","SEEN",0);
1835   gMC->Gsatt("TS16","SEEN",0);
1836   gMC->Gsatt("TIFC","SEEN",1);
1837   gMC->Gsatt("TIFC","COLO",4); 
1838   gMC->Gsatt("TS17","SEEN",0);
1839   gMC->Gsatt("TS18","SEEN",0);
1840   gMC->Gsatt("TS19","SEEN",0);
1841   gMC->Gsatt("TS21","SEEN",0);
1842   gMC->Gsatt("TS22","SEEN",0);
1843   gMC->Gsatt("TS23","SEEN",0);
1844   gMC->Gsatt("TS24","SEEN",0);
1845   gMC->Gsatt("TDGN","SEEN",0);
1846   gMC->Gsatt("TIRC","SEEN",0);
1847   gMC->Gsatt("TIC1","SEEN",1);
1848   gMC->Gsatt("TIPP","SEEN",0);
1849   gMC->Gsatt("TIC3","SEEN",0);
1850   gMC->Gsatt("TRCE","SEEN",0);
1851   gMC->Gsatt("TPSC","SEEN",0);
1852   gMC->Gsatt("TPCC","SEEN",0);
1853   gMC->Gsatt("TORC","SEEN",0);
1854   gMC->Gsatt("TOPP","SEEN",0);
1855   gMC->Gsatt("TOC3","SEEN",0);
1856   gMC->Gsatt("TOC1","SEEN",1);
1857   gMC->Gsatt("TSSW","SEEN",1);
1858   gMC->Gsatt("TSWC","SEEN",1);
1859   gMC->Gsatt("TSCE","SEEN",1); 
1860   gMC->Gsatt("TSSW","COLO",3);
1861   gMC->Gsatt("TSWC","COLO",3);
1862   gMC->Gsatt("TSCE","COLO",6);
1863   gMC->Gsatt("TWES","SEEN",0);
1864   gMC->Gsatt("TSWB","SEEN",0);
1865   gMC->Gsatt("TPEL","SEEN",0);
1866   gMC->Gsatt("TPMW","SEEN",1);
1867   gMC->Gsatt("TPEW","SEEN",1);
1868   gMC->Gsatt("TESR","SEEN",1);
1869   gMC->Gsatt("TPMW","COLO",12);
1870   gMC->Gsatt("TPEW","COLO",12);
1871   gMC->Gsatt("TWES","COLO",5);
1872   gMC->Gsatt("TIC1","COLO",5);
1873   gMC->Gsatt("TOC1","COLO",5);  
1874   gMC->Gsatt("TESB","SEEN",0);
1875   gMC->Gsatt("TPLS","SEEN",0);
1876   gMC->Gsatt("TPUS","SEEN",0);
1877   gMC->Gsatt("TPSS","SEEN",0);
1878   gMC->Gsatt("THVM","SEEN",1);
1879   gMC->Gsatt("THVM","COLO",11);
1880   gMC->Gsatt("TPSR","SEEN",0);
1881   gMC->Gsatt("THVL","SEEN",0);
1882   gMC->Gsatt("THVC","SEEN",0);
1883   gMC->Gsatt("THVE","SEEN",0);
1884   gMC->Gsatt("THVR","SEEN",0);
1885   
1886   gMC->Gdopt("hide", "on");
1887   gMC->Gdopt("shad", "on");
1888   gMC->Gsatt("*", "fill", 7);
1889   gMC->SetClipBox(".");
1890   gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1891   gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1892   gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1893   gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1894   gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1895   gMC->DefaultRange();
1896   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1897   gMC->Gdhead(1111, "Time Projection Chamber");
1898   gMC->Gdman(18, 4, "MAN");
1899   gMC->Gdopt("hide","off");
1900 }
1901
1902 //_____________________________________________________________________________
1903 void AliTPCv1::CreateMaterials()
1904 {
1905   //
1906   // Define materials for Time Projection Chamber
1907   //
1908   AliTPC::CreateMaterials();
1909 }
1910
1911 //_____________________________________________________________________________
1912 void AliTPCv1::Init()
1913 {
1914   //
1915   // Initialises TPC detector after it has been created
1916   //
1917
1918   fIdSens=gMC->VolId("TPSS"); // sensitive strip
1919   fIdLSec=gMC->VolId("TPLS"); // lower sector
1920   fIdUSec=gMC->VolId("TPUS"); // upper sector
1921
1922   printf("TPC version 1 initialized\n");
1923 }
1924
1925 //_____________________________________________________________________________
1926 void AliTPCv1::StepManager()
1927 {
1928   //
1929   // Called at every step in the Time Projection Chamber
1930   //
1931   Int_t         copy, id, i;
1932   Float_t       hits[4];
1933   Int_t         vol[2];
1934   TLorentzVector p;
1935  //
1936
1937   if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1938
1939     // 
1940     // Only charged tracks entering the sensitive volume
1941     //
1942
1943     id = gMC->CurrentVolID(copy);
1944
1945     if(id == fIdSens){
1946
1947       // sensitive volume (strip)
1948
1949       vol[1]= copy-1; // row number (absolute)
1950     
1951       // sector type
1952       
1953       id = gMC->CurrentVolOffID(1,copy); 
1954       
1955       if(id == fIdLSec){
1956
1957         // lower sector
1958      
1959         vol[0] = copy-1; // sector number
1960
1961       }
1962       else {
1963    
1964         // upper sector
1965
1966         vol[0] = copy-1+fTPCParam->GetNInnerSector(); // sector number
1967         vol[1] -= fTPCParam->GetNRowLow(); // row number  
1968
1969       } 
1970     
1971       if(vol[1] == 0){
1972   
1973         // because Jouri wants to have this
1974
1975         gMC->TrackMomentum(p);
1976         hits[0]=p[0];
1977         hits[1]=p[1];
1978         hits[2]=p[2];
1979         hits[3]=0.; // this hit has no energy loss
1980         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1981
1982         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I. 
1983
1984         gMC->TrackPosition(p);
1985         hits[0]=p[0];
1986         hits[1]=p[1];
1987         hits[2]=p[2];
1988         hits[3]=0.; // this hit has no energy loss
1989         // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1990
1991         AddHit(gAlice->CurrentTrack(), vol,hits); // M.I. 
1992
1993       } 
1994
1995       gMC->TrackPosition(p);
1996       for(i=0;i<3;++i) hits[i]=p[i];
1997       hits[3]=1; //I'd like to have something positive here (I.Belikov)
1998       // new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1999
2000       AddHit(gAlice->CurrentTrack(), vol,hits); // M.I. 
2001
2002     }
2003
2004   }  
2005    
2006 }
2007 //_____________________________________________________________________________
2008
2009
2010