Script to create a random bad channel map.
[u/mrichter/AliRoot.git] / VZERO / AliVZEROv2.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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13  * provided "as is" without express or implied warranty.                  *
14  **************************************************************************/
15
16 /* $Id$ */
17
18 //////////////////////////////////////////////////////////////////////
19 //                                                                  //
20 //  (V-zero) detector  version 2  as designed by the Lyon group     //
21 //   All comments should be sent to Brigitte CHEYNIS :              //
22 //                                  b.cheynis@ipnl.in2p3.fr         // 
23 //   Geometry of the  26th of november 2003                         //
24 //  (circular instead of trapezoidal shapes as in previous versions //
25 //   plus changes in cell dimensions and offsets) :                 // 
26 //   Scintillating cells are now 2 cm thick instead of 0.7 cm       //
27 //   V0R sits between Z values  -89.4 and  -85.0 cm                 //
28 //   V0L sits between Z values +350.0 and +352.0 cm                 //
29 //   New coordinate system has been implemented in october 2003     //
30 //                                                                  //
31 //////////////////////////////////////////////////////////////////////
32
33 // --- Standard libraries ---
34 #include <Riostream.h>
35 #include <stdlib.h>
36 #include <string.h>
37
38 // --- ROOT libraries ---
39 #include <TClonesArray.h>
40 #include <TGeometry.h>
41 #include <TLorentzVector.h>
42 #include <TMath.h>
43 #include <TNode.h>
44 #include <TObjectTable.h>
45 #include <TTUBE.h>
46 #include <TTUBS.h>
47 #include <TVirtualMC.h>
48 #include <TParticle.h>
49
50 // --- AliRoot header files ---
51 #include "AliRun.h"
52 #include "AliMC.h"
53 #include "AliConst.h"
54 #include "AliLog.h"
55 #include "AliMagF.h"
56 #include "AliVZEROLoader.h"
57 #include "AliVZEROdigit.h"
58 #include "AliVZEROhit.h"
59 #include "AliVZEROv2.h"
60
61 ClassImp(AliVZEROv2)
62
63 //_____________________________________________________________________________
64 AliVZEROv2:: AliVZEROv2():AliVZERO()
65 {
66 // Standard default constructor 
67 }
68
69 //_____________________________________________________________________________
70 AliVZEROv2::AliVZEROv2(const char *name, const char *title):
71  AliVZERO(name,title)
72 {
73
74 // Standard constructor for V-zero Detector  version 2
75
76   AliDebug(2,"Create VZERO object");
77   
78 }
79
80 //_____________________________________________________________________________
81 void AliVZEROv2::CreateGeometry()
82 {
83
84 // Creates the GEANT geometry of the V-zero Detector  version 2
85   
86   AliDebug(2,"Create VZERO Geometry");
87       
88   Int_t    *idtmed = fIdtmed->GetArray()-2999;
89
90   Int_t    ndetR = 1;
91   Int_t    ndetL = 1;
92  
93   Int_t    ncellsR = 1;
94   Int_t    ncellsL = 1;
95   
96   Int_t    idrotm[999];
97  
98   Float_t  height1, height2, height3, height4, height5; 
99   Float_t  height;
100   Float_t  theta;  
101   
102   Float_t  halfThickQua;
103   
104   Float_t  zdet;
105   Float_t  r0, r5;
106   Float_t  pi = TMath::Pi();
107     
108   height1     =     1.82;         // height of cell 1, in cm
109   height2     =     3.81;         // height of cell 2, in cm
110   height3     =     4.72;         // height of cell 3, in cm
111   height4     =     7.12;         // height of cell 4, in cm
112   height5     =    10.83;         // height of cell 5, in cm
113   
114   theta       = pi/6.0/2.0;       // half angular opening = 15 degrees
115     
116   halfThickQua= fThickness1/2.0;  // half thickness of elementary cell (inner ring)
117   
118 // distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from 
119 // absorber nose sitting at 90 cm. Will use -zdet later...
120    
121   zdet        =    90.0 - 0.6 -fThickness/2.0;  // distance to vertex (along Z axis)   
122   r0          =    4.05;          // closest distance to center of the beam pipe
123   height      =    height1 + height2 + height3 + height4 + height5;
124   r5          =    r0 + height;
125
126 // Creation of mother volume v0LE - left part - :
127 // Entrance face at  +350.0 cm  (new coordinate system) ...
128
129    Float_t   partube[3];
130    
131    partube[0] =  4.3;
132    partube[1] = 45.0;
133    partube[2] = fThickness1/2.0;   
134     
135    gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
136      
137 // Creation of five rings - left part - :
138 // Entrance face at +350.0 cm  (new coordinate system) ... 
139
140 // Mother volume v0L0 in which will be set 5 scintillator cells 
141
142   Float_t   partubs[5];  
143     
144   Float_t   r0Left      =   4.3;   
145   Float_t   height1Left =   2.6; 
146   Float_t   height2Left =   4.1;
147   Float_t   height3Left =   6.4;
148   Float_t   height4Left =  10.2;
149   Float_t   height5Left =  16.9;
150   Float_t   heightLeft  = height1Left + height2Left + height3Left 
151                                       + height4Left + height5Left;
152   Float_t   r5Left      = r0Left  + heightLeft; 
153   
154   partubs[0]      =  r0Left;
155   partubs[1]      =  r5Left;
156   partubs[2]      =  fThickness1/2.0;
157   partubs[3]      =  90.0-15.0;
158   partubs[4]      = 120.0-15.0;
159
160   gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5);  // air volume
161   
162   Float_t  r1Left =  r0Left + height1Left;        
163      
164   partubs[0]     =  r0Left;
165   partubs[1]     =  r1Left;
166
167   gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5);  // quartz volume
168   gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); 
169
170   Float_t   r2Left  =   r1Left + height2Left;       
171   
172   partubs[0]     =  r1Left;
173   partubs[1]     =  r2Left;
174
175   gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5);  // quartz volume
176   gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); 
177   
178   Float_t   r3Left =   r2Left + height3Left;
179    
180   partubs[0]     =  r2Left;
181   partubs[1]     =  r3Left;
182
183   gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5);  // quartz volume
184   gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
185   
186   Float_t   r4Left =  r3Left + height4Left;
187    
188   partubs[0]     =  r3Left;
189   partubs[1]     =  r4Left;
190
191   gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5);  // quartz volume
192   gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
193
194   partubs[0]     =  r4Left;
195   partubs[1]     =  r5Left;
196   partubs[3]     =  90.0-15.0;
197   partubs[4]     = 120.0-30.0;
198   
199   gMC->Gsvolu("V0L5","TUBS",idtmed[3005],partubs,5);  // quartz volume
200   gMC->Gspos("V0L5",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
201   
202   partubs[3]     = 120.0-30.0;
203   partubs[4]     = 120.0-15.0;
204   
205   gMC->Gsvolu("V0L6","TUBS",idtmed[3005],partubs,5);  // quartz volume
206   gMC->Gspos("V0L6",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
207   
208
209 // Creation of mother volume v0RI - right part - :
210   
211   partube[0] = r0 - 0.2;
212   partube[1] = r5 + 1.0;
213   partube[2] = fThickness/2.0; 
214       
215   gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
216   
217 // Creation of  carbon lids (2 mm thick) to keep v0RI box shut...
218
219   Float_t  lidThickness = 0.2;
220  
221   partube[0] =   r0;
222   partube[1] =   r5;
223   partube[2] =   +lidThickness/2.0;
224     
225   gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3); 
226   gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
227   gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
228   
229 // Creation of aluminum rings to maintain the v0RI pieces ...
230
231   partube[0] =   r0 - 0.2;
232   partube[1] =   r0;
233   partube[2] =   +fThickness/2.0;
234    
235   gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);    
236   gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
237
238   partube[0] =   r5;
239   partube[1] =   r5 + 1.0;
240   partube[2] =   +fThickness/2.0;
241  
242   gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);    
243   gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
244   
245 // Mother volume v0R0 in which will be set 5  scintillator cells 
246   
247   partubs[0]      =  r0;
248   partubs[1]      =  r5;
249   partubs[2]      =  fThickness/2.0;
250   partubs[3]      =  90.0-15.0;
251   partubs[4]      = 120.0-15.0;
252
253   gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5);  // air volume 
254
255 // Elementary cell of ring 1 :
256 // (cells 2 and 3  will be shifted by 1 cm to output fibers) 
257    
258   Float_t   offsetFibers  =  1.0;
259   Float_t   offset        =  fThickness/2.0 - lidThickness - fThickness1/2.0; 
260   Float_t   r1            =  r0 + height1;
261       
262   partubs[0]     =  r0;
263   partubs[1]     =  r1;
264   partubs[2]     =  fThickness1/2.0;
265   
266   gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5);  // scintillator volume
267   gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY"); 
268
269 // Elementary cell of ring 2 :
270
271   Float_t   r2   =  r1 + height2;       
272   
273   partubs[0]     =  r1;
274   partubs[1]     =  r2;
275
276   gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5);  // scintillator volume
277   gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY"); 
278
279
280 // Elementary cell of ring 3 :
281   
282   Float_t   r3   =  r2 + height3;
283    
284   partubs[0]     =  r2;
285   partubs[1]     =  r3;
286
287   gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5);  // scintillator volume
288   gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
289
290 // Elementary cell of ring 4 :
291   
292   Float_t   r4   =  r3 + height4 ;
293   
294   partubs[0]     =  r3;
295   partubs[1]     =  r4;
296
297   gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5);  // scintillator volume
298   gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 ,  -offset + 2.0 * offsetFibers, 0,"ONLY");
299
300 // Elementary cells of ring 5 :
301
302   partubs[0]     =  r4;
303   partubs[1]     =  r5;
304   partubs[3]     =  90.0-15.0;
305   partubs[4]     = 120.0-30.0;
306   
307   gMC->Gsvolu("V0R5","TUBS",idtmed[3005],partubs,5);  // scintillator volume
308   gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");  
309
310   partubs[3]     = 120.0-30.0;
311   partubs[4]     = 120.0-15.0;
312   
313   gMC->Gsvolu("V0R6","TUBS",idtmed[3005],partubs,5);  // scintillator volume
314   gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 ,  -offset + 2.0 * offsetFibers, 0,"ONLY");
315    
316   Float_t  phiDeg = 180./6.; 
317
318 // Right part : 
319  
320   for(Float_t  phi = 15.0; phi < 360.0; phi = phi + phiDeg)
321       {        
322         AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
323         gMC->Gspos("V0R0",ndetR,"V0RI",0.0,
324                           0.0,0.0,idrotm[902],"ONLY");
325         ndetR++;
326        }
327
328   gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY");
329  
330   ncellsR = (ndetR - 1) * 6;  
331   AliInfo(Form("Number of cells on Right side =   %d",  ncellsR));    
332
333 // Left part :
334
335   for(Float_t  phi = 15.0; phi < 360.0; phi = phi + phiDeg)
336       {       
337         AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
338         gMC->Gspos("V0L0",ndetL,"V0LE",0.0,
339                           0.0,0.0,idrotm[902],"ONLY");
340         ndetL++;
341        }
342
343   gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,350.0+fThickness1/2.0,0,"ONLY");
344  
345   ncellsL = (ndetL - 1) * 6;
346   AliInfo(Form("Number of cells on Left side  =   %d",  ncellsL));    
347            
348 }
349             
350 //_____________________________________________________________________________
351 void AliVZEROv2::BuildGeometry()
352 {
353   
354 // Builds simple ROOT TNode geometry for event display
355
356   AliDebug(2,"VZERO BuildGeometry");
357
358   TNode *top; 
359
360   TNode *v0Rnode, *v0Rnode0, *v0Rnode6 , *v0Rnode7, *v0Rnode8, *v0Rnode9;
361   TNode *v0Rnode1, *v0Rnode2, *v0Rnode3, *v0Rnode4, *v0Rnode5;
362   TNode *v0Lnode, *v0Lnode0;
363   TNode *v0Lnode1, *v0Lnode2, *v0Lnode3, *v0Lnode4, *v0Lnode5, *v0Lnode6;
364    
365   const int kColorVZERO  = kGreen;
366  
367   top = gAlice->GetGeometry()->GetNode("alice");
368
369   Float_t  height1, height2, height3, height4, height5; 
370   Float_t  height;
371   Float_t  theta;  
372   
373   Float_t  halfThickQua;
374   Float_t  zdet;
375   Float_t  r0, r5;
376   Float_t  pi = TMath::Pi();
377
378   height1           =     1.82;           // height of cell 1, in cm
379   height2           =     3.81;           // height of cell 2, in cm
380   height3           =     4.72;           // height of cell 3, in cm
381   height4           =     7.12;           // height of cell 4, in cm
382   height5           =    10.83;           // height of cell 5, in cm  
383
384   theta             =    pi/6.0/2.0;    
385    
386   halfThickQua    =    fThickness1/2.0; 
387   
388   zdet              =    90.0 - 0.6 - fThickness/2.0;   
389   r0                =    4.05;         
390   height            =    height1 + height2 + height3 + height4 + height5;
391   r5                =    r0 + height;
392   
393   Int_t     ndiv    =     1;  
394
395   Float_t   partube[3];
396
397   partube[0] =  r0 - 0.2;
398   partube[1] =  r5 + 1.0;
399   partube[2] = fThickness/2.0;   
400   
401   TTUBE *v0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
402                 
403   top->cd();
404   
405   v0Rnode = new TNode("V0RI","V0RI",v0RI,0.0,0.0,-zdet,0);
406   
407   v0Rnode->SetLineColor(kYellow);
408   fNodes->Add(v0Rnode);  
409   v0Rnode->SetVisibility(2);     
410  
411 // Rondelles de carbone (epaisseur 2 mm) de maintien des cellules ...
412
413   Float_t  lidThickness = 0.2;
414   
415   partube[0] =   r0;
416   partube[1] =   r5;
417   partube[2] =   +lidThickness/2.0;
418   
419   TTUBE  *v0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
420   
421   v0Rnode->cd();
422   v0Rnode6 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0, fThickness/2.0-partube[2],0);        
423   v0Rnode6->SetLineColor(kYellow);
424   fNodes->Add(v0Rnode6); 
425   v0Rnode->cd();
426   v0Rnode7 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0,-fThickness/2.0+partube[2],0);        
427   v0Rnode7->SetLineColor(kYellow);
428   fNodes->Add(v0Rnode7);
429   
430   partube[0] =   r0 - 0.2;
431   partube[1] =   r0;
432   partube[2] =   +fThickness/2.0;
433   
434   TTUBE *v0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
435  
436   v0Rnode->cd();
437   v0Rnode8 = new TNode("V0IR", "V0IR",v0IR,0.0,0.0,0.0,0);
438   v0Rnode8->SetLineColor(kYellow);
439   fNodes->Add(v0Rnode8);
440
441   partube[0] =   r5;
442   partube[1] =   r5 + 1.0; 
443   partube[2] =   +fThickness/2.0;
444
445   TTUBE  *v0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
446   
447   v0Rnode->cd();
448   v0Rnode9 = new TNode("V0ER", "V0ER",v0ER,0.0,0.0,0.0,0);
449   v0Rnode9->SetLineColor(kYellow);
450   fNodes->Add(v0Rnode9);
451   
452   Float_t   partubs[5];
453  
454   partubs[0]      =  r0;
455   partubs[1]      =  r5;
456   partubs[2]      =  fThickness/2.0;
457   partubs[3]      =  90.0-15.0;
458   partubs[4]      = 120.0-15.0;
459
460   TTUBS  *v0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2], 
461                                                   partubs[3], partubs[4]); 
462                                                   
463   v0R0->SetNumberOfDivisions(ndiv);                                               
464
465   Float_t   r1     =  r0 + height1;
466   Float_t   offset = fThickness/2.0 - lidThickness - fThickness1/2.0; 
467   Float_t   offsetFibers = 1.0;
468     
469   partubs[0]     =  r0;
470   partubs[1]     =  r1;
471   partubs[2]     =  fThickness1/2.0;
472
473   TTUBS *v0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2], 
474                                                   partubs[3], partubs[4]);
475
476   v0R1->SetNumberOfDivisions(ndiv);
477   
478   Float_t   r2   =  r1 + height2;       
479   
480   partubs[0]     =  r1;
481   partubs[1]     =  r2;
482
483   TTUBS *v0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2], 
484                                                   partubs[3], partubs[4]);
485
486   v0R2->SetNumberOfDivisions(ndiv);
487   
488   Float_t   r3   =  r2 + height3;
489    
490   partubs[0]     =  r2;
491   partubs[1]     =  r3;
492   
493   TTUBS *v0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2], 
494                                                   partubs[3], partubs[4]);
495   v0R3->SetNumberOfDivisions(ndiv);
496  
497   Float_t   r4   =  r3 + height4;
498    
499   partubs[0]     =  r3;
500   partubs[1]     =  r4;
501
502   TTUBS *v0R4 = new TTUBS("V0R4", "V0R4", "void", partubs[0], partubs[1], partubs[2], 
503                                                   partubs[3], partubs[4]);
504
505   v0R4->SetNumberOfDivisions(ndiv);
506
507   partubs[0]     =  r4;
508   partubs[1]     =  r5;
509   partubs[3]     =  90.0-15.0;
510   partubs[4]     = 120.0-30.0;
511   
512   TTUBS *v0R5 = new TTUBS("V0R5", "V0R5", "void", partubs[0], partubs[1], partubs[2], 
513                                                   partubs[3], partubs[4]);
514
515   v0R5->SetNumberOfDivisions(ndiv);
516
517   partubs[3]     = 120.0-30.0;
518   partubs[4]     = 120.0-15.0;
519   
520   TTUBS *v0R6 = new TTUBS("V0R6", "V0R6", "void", partubs[0], partubs[1], partubs[2], 
521                                                   partubs[3], partubs[4]);
522                                                   
523   v0R6->SetNumberOfDivisions(ndiv);
524                 
525   Float_t  phi;
526   Float_t  phiDeg= 180./6.;
527     
528   Int_t    ndetR = 1; 
529
530   char     nameNode[12];  
531  
532   for (phi = 15.0; phi < 360.0; phi = phi + phiDeg)
533   
534   {
535      
536     TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );        
537      
538     sprintf(nameNode,"SUBDER%d",ndetR);
539     
540     v0Rnode->cd();
541     v0Rnode0 = new TNode(nameNode,nameNode,v0R0,0.0,0.0, 0.0,mat920);    
542     v0Rnode0->SetLineColor(kYellow);
543     fNodes->Add(v0Rnode0);
544     ndetR++;
545     
546     sprintf(nameNode,"SUBDER%d",ndetR);
547     v0Rnode0->cd();    
548     v0Rnode1 = new TNode(nameNode,nameNode,v0R1,0.0,0.0, -offset,0);     
549     v0Rnode1->SetLineColor(kColorVZERO);
550     fNodes->Add(v0Rnode1);
551     ndetR++;
552     
553     sprintf(nameNode,"SUBDER%d",ndetR);
554     v0Rnode0->cd();    
555     v0Rnode2 = new TNode(nameNode,nameNode,v0R2,0.0,0.0, -offset + offsetFibers,0);      
556     v0Rnode2->SetLineColor(kColorVZERO);
557     fNodes->Add(v0Rnode2);
558     ndetR++;
559
560     sprintf(nameNode,"SUBDER%d",ndetR);
561     v0Rnode0->cd();    
562     v0Rnode3 = new TNode(nameNode,nameNode,v0R3,0.0,0.0, -offset + 2.0*offsetFibers,0);  
563     v0Rnode3->SetLineColor(kColorVZERO);
564     fNodes->Add(v0Rnode3);
565     ndetR++;
566
567     sprintf(nameNode,"SUBDER%d",ndetR);
568     v0Rnode0->cd();    
569     v0Rnode4 = new TNode(nameNode,nameNode,v0R4,0.0,0.0, -offset + 2.0*offsetFibers,0);  
570     v0Rnode4->SetLineColor(kColorVZERO);
571     fNodes->Add(v0Rnode4);
572     ndetR++;
573      
574     sprintf(nameNode,"SUBDER%d",ndetR);
575     v0Rnode0->cd();    
576     v0Rnode5 = new TNode(nameNode,nameNode,v0R5,0.0,0.0, -offset + 2.0*offsetFibers,0);  
577     v0Rnode5->SetLineColor(kColorVZERO);
578     fNodes->Add(v0Rnode5);
579     ndetR++;
580     
581     sprintf(nameNode,"SUBDER%d",ndetR);
582     v0Rnode0->cd();    
583     v0Rnode6 = new TNode(nameNode,nameNode,v0R6,0.0,0.0, -offset + 2.0*offsetFibers,0);  
584     v0Rnode6->SetLineColor(kColorVZERO);
585     fNodes->Add(v0Rnode6);
586     ndetR++;
587        
588     v0Rnode0->SetVisibility(2);
589     
590   }    
591
592 // Left side of VZERO :
593      
594   Float_t   r0Left      =   4.3;   
595   Float_t   height1Left =   2.6; 
596   Float_t   height2Left =   4.1;
597   Float_t   height3Left =   6.4;
598   Float_t   height4Left =  10.2;
599   Float_t   height5Left =  16.9;
600   Float_t   heightLeft  = height1Left + height2Left + height3Left 
601                                         + height4Left + height5Left;
602   Float_t   r5Left      = r0Left  + heightLeft; 
603
604   partube[0] =  r0Left;
605   partube[1] =  r5Left;
606   partube[2] =  fThickness1/2.0; 
607   
608   TTUBE *v0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
609                 
610   top->cd();
611   
612   v0Lnode = new TNode("V0LE","V0LE",v0LE,0.0,0.0,350.0+fThickness1/2.0,0);
613   
614   v0Lnode->SetLineColor(kBlue);
615   fNodes->Add(v0Lnode);
616   
617   v0Lnode->SetVisibility(2);
618
619   partubs[0]      =  r0Left;
620   partubs[1]      =  r5Left;
621   partubs[2]      =  fThickness1/2.0;
622   partubs[3]      =  90.0-15.0;
623   partubs[4]      = 120.0-15.0;
624   
625   TTUBS *v0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2], 
626                                                   partubs[3], partubs[4]);
627
628   v0L0->SetNumberOfDivisions(ndiv); 
629   v0L0->SetLineColor(7);
630   
631   Float_t   offsetLeft;
632   offsetLeft    = - fThickness1/2.0; 
633
634   Float_t   r1Left =  r0Left + height1Left;        
635       
636   partubs[0]     =  r0Left;
637   partubs[1]     =  r1Left;
638
639   TTUBS *v0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2], 
640                                                   partubs[3], partubs[4]);
641
642   v0L1->SetNumberOfDivisions(ndiv);
643   
644   Float_t   r2Left =  r1Left + height2Left;       
645   
646   partubs[0]     =  r1Left;
647   partubs[1]     =  r2Left;
648
649   TTUBS *v0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2], 
650                                                   partubs[3], partubs[4]);
651
652   v0L2->SetNumberOfDivisions(ndiv);
653   
654   Float_t   r3Left  =  r2Left + height3Left;
655   
656   partubs[0]     =  r2Left;
657   partubs[1]     =  r3Left;
658   
659   TTUBS *v0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2], 
660                                                   partubs[3], partubs[4]);
661   v0L3->SetNumberOfDivisions(ndiv);
662  
663   Float_t   r4Left  =   r3Left + height4Left;
664   
665   partubs[0]     =  r3Left;
666   partubs[1]     =  r4Left;
667
668   TTUBS *v0L4 = new TTUBS("V0L4", "V0L4", "void", partubs[0], partubs[1], partubs[2], 
669                                                   partubs[3], partubs[4]);
670
671   v0L4->SetNumberOfDivisions(ndiv);
672
673   partubs[0]     =  r4Left;
674   partubs[1]     =  r5Left;
675   partubs[3]     =  90.0-15.0;
676   partubs[4]     = 120.0-30.0;
677   
678   TTUBS *v0L5 = new TTUBS("V0L5", "V0L5", "void", partubs[0], partubs[1], partubs[2], 
679                                                   partubs[3], partubs[4]);
680
681
682   v0L5->SetNumberOfDivisions(ndiv);
683
684   partubs[3]     = 120.0-30.0;
685   partubs[4]     = 120.0-15.0;
686   
687   TTUBS *v0L6 = new TTUBS("V0L6", "V0L6", "void", partubs[0], partubs[1], partubs[2], 
688                                                   partubs[3], partubs[4]);
689                                                   
690   v0L6->SetNumberOfDivisions(ndiv);
691
692   Int_t    ndetL   = 1;
693  
694   for (phi = 15.0; phi < 360.0; phi = phi + phiDeg)
695   
696   {
697      
698     TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );        
699     
700  
701     sprintf(nameNode,"SUBDEL%d",ndetL);
702     
703     v0Lnode->cd();
704     v0Lnode0 = new TNode(nameNode,nameNode,v0L0,0.0,0.0, offsetLeft + halfThickQua,mat920);      
705     v0Lnode0->SetLineColor(kColorVZERO);
706     fNodes->Add(v0Lnode0);
707     ndetL++;
708     
709     sprintf(nameNode,"SUBDEL%d",ndetL);
710     v0Lnode0->cd();    
711     v0Lnode1 = new TNode(nameNode,nameNode,v0L1,0.0,0.0, 0.0,0);         
712     v0Lnode1->SetLineColor(kColorVZERO);
713     fNodes->Add(v0Lnode1);
714     ndetL++;
715     
716     sprintf(nameNode,"SUBDEL%d",ndetL);
717     v0Lnode0->cd();    
718     v0Lnode2 = new TNode(nameNode,nameNode,v0L2,0.0,0.0, 0.0,0);         
719     v0Lnode2->SetLineColor(kColorVZERO);
720     fNodes->Add(v0Lnode2);
721     ndetL++;
722
723
724     sprintf(nameNode,"SUBDEL%d",ndetL);
725     v0Lnode0->cd();    
726     v0Lnode3 = new TNode(nameNode,nameNode,v0L3,0.0,0.0, 0.0,0);         
727     v0Lnode3->SetLineColor(kColorVZERO);
728     fNodes->Add(v0Lnode3);
729     ndetL++;
730
731     sprintf(nameNode,"SUBDEL%d",ndetL);
732     v0Lnode0->cd();    
733     v0Lnode4 = new TNode(nameNode,nameNode,v0L4,0.0,0.0, 0.0,0);         
734     v0Lnode4->SetLineColor(kColorVZERO);
735     fNodes->Add(v0Lnode4);
736     ndetL++;
737      
738     sprintf(nameNode,"SUBDEL%d",ndetL);
739     v0Lnode0->cd();    
740     v0Lnode5 = new TNode(nameNode,nameNode,v0L5,0.0,0.0, 0.0,0);         
741     v0Lnode5->SetLineColor(kColorVZERO);
742     fNodes->Add(v0Lnode5);
743     ndetL++;
744     
745     sprintf(nameNode,"SUBDEL%d",ndetL);
746     v0Lnode0->cd();    
747     v0Lnode6 = new TNode(nameNode,nameNode,v0L6,0.0,0.0, 0.0,0);         
748     v0Lnode6->SetLineColor(kColorVZERO);
749     fNodes->Add(v0Lnode6);
750     ndetL++;
751        
752     v0Lnode0->SetVisibility(2);
753     
754   }    
755      
756 }  
757     
758 //_____________________________________________________________________________
759 void AliVZEROv2::CreateMaterials()
760 {
761
762 // Creates materials used for geometry 
763
764     AliDebug(2,"VZERO create materials");
765     
766 /*
767     Float_t ppckov[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9, 
768                            6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
769
770            
771     Float_t ppckov_alu[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9, 
772                                6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
773                            
774     Float_t rindex_quarz[14] = { 1.52398,  1.53090, 1.53835, 1.54641, 1.55513, 1.56458, 
775                                  1.57488,  1.58611, 1.59842, 1.61197, 1.62696, 1.64362, 
776                                  1.662295, 1.68337 };
777                                  
778     Float_t absco_quarz[14] = { 105.8,  45.656, 35.665, 28.598, 25.007, 21.04, 17.525, 
779                                 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };   
780                                                                                         
781     Float_t effic_all[14]   = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
782     
783         
784     Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; 
785     
786     
787     Float_t absco_alu[14]  = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,
788                                1e-4,1e-4,1e-4,1e-4 };
789     Float_t effic_alu[14]  = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
790
791 */        
792
793     Int_t *idtmed = fIdtmed->GetArray()-2999;
794     
795     
796 //  Parameters related to Quarz (SiO2) :
797  
798     Float_t aqua[2], zqua[2], densqua, wmatqua[2];
799     Int_t nlmatqua;
800     
801     aqua[0]    = 28.09;
802     aqua[1]    = 16.;
803     zqua[0]    = 14.;
804     zqua[1]    = 8.;
805     densqua    = 2.64;
806     nlmatqua   = -2;
807     wmatqua[0] = 1.;
808     wmatqua[1] = 2.;
809
810 // Parameters  related to aluminum sheets :
811     
812     Float_t  aal   = 26.98;
813     Float_t  zal   = 13.00; 
814     Float_t  densal=   2.7; 
815     Float_t  radlal=   8.9;
816        
817 // Parameters  related to scintillator CH :
818     
819     Float_t ascin[2] = {1.00794,12.011};
820     Float_t zscin[2] = {1.,6.};
821     Float_t wscin[2] = {1.,1.};
822     Float_t denscin  = 1.032;
823
824 // AIR
825
826     Float_t aAir[4]={12.,14.,16.,36.};
827     Float_t zAir[4]={6.,7.,8.,18.};
828     Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
829     Float_t dAir = 1.20479E-3;
830         
831 //  Definition of materials :
832        
833     AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir);
834     AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir);
835     AliMaterial( 2, "CARBON$"  , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
836     AliMixture(  3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
837     AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
838     AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
839  
840     AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
841     
842      
843     Int_t   iSXFLD = gAlice->Field()->Integ();
844     Float_t sXMGMX = gAlice->Field()->Max();
845     
846     Float_t tmaxfd, stemax, deemax, epsil, stmin;
847         
848     tmaxfd = 10.;
849     stemax = 0.1;
850     deemax = 0.1;     
851     epsil  = 0.001;
852     stmin  = 0.001;
853   
854 //  Active Air :    
855     AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX,
856               10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
857
858 //  Inactive air : 
859   
860     AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX,
861               10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
862     
863     AliMedium(2, "CARBON$ ", 2,  1, iSXFLD, sXMGMX,
864               tmaxfd, stemax, deemax, epsil, stmin, 0, 0);   
865
866     AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX,
867               tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
868     
869     AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX,
870               tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
871               
872
873     AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX,
874               tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);    
875
876     AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
877
878     gMC->Gstpar(idtmed[3000], "LOSS", 1.);  //  [3000] = air ACTIF  [3010] = air INACTIF
879     gMC->Gstpar(idtmed[3000], "HADR", 1.);
880     gMC->Gstpar(idtmed[3000], "DCAY", 1.);
881     gMC->Gstpar(idtmed[3000], "DRAY", 1.);
882     
883     gMC->Gstpar(idtmed[3001], "LOSS", 1.);  //  [3001] = carbon
884     gMC->Gstpar(idtmed[3001], "HADR", 1.);
885     gMC->Gstpar(idtmed[3001], "DCAY", 1.);
886     gMC->Gstpar(idtmed[3001], "DRAY", 1.);
887
888     gMC->Gstpar(idtmed[3002], "LOSS", 1.);  //  [3002] = quartz
889     gMC->Gstpar(idtmed[3002], "HADR", 1.);
890     gMC->Gstpar(idtmed[3002], "DCAY", 1.);
891     gMC->Gstpar(idtmed[3002], "DRAY", 1.);  
892     gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ; 
893     gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
894     
895     gMC->Gstpar(idtmed[3003], "LOSS", 1.);  //  [3003] = normal aluminum
896     gMC->Gstpar(idtmed[3003], "HADR", 1.);
897     gMC->Gstpar(idtmed[3003], "DCAY", 1.);
898     gMC->Gstpar(idtmed[3003], "DRAY", 1.);
899     
900     gMC->Gstpar(idtmed[3004], "LOSS", 1.);  //  [3004] = reflecting aluminum
901     gMC->Gstpar(idtmed[3004], "HADR", 1.);
902     gMC->Gstpar(idtmed[3004], "DCAY", 1.);
903     gMC->Gstpar(idtmed[3004], "DRAY", 1.);
904     gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ; 
905     gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
906     
907     gMC->Gstpar(idtmed[3005], "LOSS", 1.);  //  [3005] = scintillator
908     gMC->Gstpar(idtmed[3005], "HADR", 1.);
909     gMC->Gstpar(idtmed[3005], "DCAY", 1.);
910     gMC->Gstpar(idtmed[3005], "DRAY", 1.); 
911     gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ; 
912     gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
913       
914     
915 //    geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);    
916 //    geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
917
918 //    gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);    
919 //    gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
920                                        
921 }
922
923 //_____________________________________________________________________________
924 void AliVZEROv2::DrawModule() const
925 {
926
927 //  Drawing is done in DrawVZERO.C
928
929    AliDebug(2,"VZERO DrawModule");
930
931 }
932
933 //_____________________________________________________________________________
934 void AliVZEROv2::Init()
935 {
936 // Initialises version 2 of the VZERO Detector
937 // Just prints an information message
938   
939    AliInfo(Form("VZERO version %d initialized",IsVersion()));
940    
941 //   gMC->SetMaxStep(fMaxStepAlu);
942 //   gMC->SetMaxStep(fMaxStepQua);
943    
944     AliVZERO::Init();
945   
946 }
947
948
949 //_____________________________________________________________________________
950 void AliVZEROv2::StepManager()
951 {
952  
953 // Step Manager, called at each step 
954    
955      Int_t     copy;
956      static    Int_t   vol[4];
957      static    Float_t hits[19];
958      static    Float_t eloss, tlength;
959      
960      TLorentzVector pos;     
961      TLorentzVector mom;
962      
963      Float_t        theta;
964      Float_t        phi;
965      Float_t        ringNumber;
966
967      Int_t          ipart;
968      Float_t        destep, step;
969           
970
971 //   We keep only charged tracks :
972      
973      if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return; 
974
975
976      vol[0]    = gMC->CurrentVolOffID(1, vol[1]);
977      vol[2]    = gMC->CurrentVolID(copy);
978      vol[3]    = copy;
979      
980      static Int_t idV0R1 = gMC->VolId("V0R1");
981      static Int_t idV0L1 = gMC->VolId("V0L1");
982      static Int_t idV0R2 = gMC->VolId("V0R2");
983      static Int_t idV0L2 = gMC->VolId("V0L2");
984      static Int_t idV0R3 = gMC->VolId("V0R3");
985      static Int_t idV0L3 = gMC->VolId("V0L3");
986      static Int_t idV0R4 = gMC->VolId("V0R4");
987      static Int_t idV0L4 = gMC->VolId("V0L4");
988      static Int_t idV0R5 = gMC->VolId("V0R5");
989      static Int_t idV0L5 = gMC->VolId("V0L5");
990      static Int_t idV0R6 = gMC->VolId("V0R6");
991      static Int_t idV0L6 = gMC->VolId("V0L6");
992
993      if      ( gMC->CurrentVolID(copy) == idV0R1 ||
994                gMC->CurrentVolID(copy) == idV0L1 )
995                ringNumber = 1.0;
996      else if ( gMC->CurrentVolID(copy) == idV0R2 ||
997                gMC->CurrentVolID(copy) == idV0L2 ) 
998                ringNumber = 2.0;  
999      else if ( gMC->CurrentVolID(copy) == idV0R3 ||
1000                gMC->CurrentVolID(copy) == idV0L3 )
1001                ringNumber = 3.0;
1002      else if ( gMC->CurrentVolID(copy) == idV0R4 ||
1003                gMC->CurrentVolID(copy) == idV0L4 )       
1004                ringNumber = 4.0; 
1005      else if ( gMC->CurrentVolID(copy) == idV0R5 ||
1006                gMC->CurrentVolID(copy) == idV0L5 ||
1007                gMC->CurrentVolID(copy) == idV0R6 ||
1008                gMC->CurrentVolID(copy) == idV0L6 )        
1009                ringNumber = 5.0; 
1010      else
1011                ringNumber = 0.0;
1012
1013      if  (  ringNumber > 0.5  ) { 
1014      
1015         destep    = gMC->Edep();
1016         step      = gMC->TrackStep();
1017         eloss    += destep;
1018         tlength  += step; 
1019
1020         if  ( gMC->IsTrackEntering()  )  {  
1021        
1022             gMC->TrackPosition(pos);
1023      
1024             gMC->TrackMomentum(mom);      
1025             Double_t tc   = mom[0]*mom[0]+mom[1]*mom[1];
1026             Double_t pt   = TMath::Sqrt(tc);
1027             Double_t pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1028             theta   = Float_t(TMath::ATan2(pt,Double_t(mom[2])))*kRaddeg;
1029             phi     = Float_t(TMath::ATan2(Double_t(pos[1]),Double_t(pos[0])))*kRaddeg;
1030
1031 ////////////////////////////////////////////////////////////////////////////         
1032      Float_t angle1 = Float_t(TMath::ATan2(Double_t(pos[1]),Double_t(pos[0])))*kRaddeg;
1033      if(angle1 < 0.0) angle1 = angle1 + 360.0;
1034      //PH     AliDebug(2,Form("RingNumber, copy, phi1  = %f %d %f \n", ringNumber,vol[1],angle1)); 
1035 ////////////////////////////////////////////////////////////////////////////    
1036                  
1037      
1038             ipart  = gMC->TrackPid();
1039
1040             hits[0]  = pos[0];
1041             hits[1]  = pos[1];
1042             hits[2]  = pos[2];           
1043             hits[3]  =  Float_t (ipart); 
1044
1045             hits[4]  = gMC->TrackTime();
1046             hits[5]  = gMC->TrackCharge();
1047             hits[6]  = theta;
1048             hits[7]  = phi;
1049             hits[8]  = ringNumber;
1050          
1051             hits[9]  = pt;
1052             hits[10] = pmom;
1053             hits[11] = mom[0];
1054             hits[12] = mom[1];
1055             hits[13] = mom[2];
1056             
1057             TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber());
1058             hits[14] = par->Vx();
1059             hits[15] = par->Vy();
1060             hits[16] = par->Vz();
1061             
1062             tlength  = 0.0;
1063             eloss    = 0.0;
1064             
1065          }
1066          
1067          if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1068          
1069          hits[17] =   eloss;
1070          hits[18] = tlength;
1071          
1072          AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1073                  
1074          tlength  = 0.0;
1075          eloss    = 0.0; 
1076           
1077          } 
1078     }
1079       
1080 }
1081
1082 //_____________________________________________________________________________
1083 void AliVZEROv2::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1084 {
1085   
1086 //  Adds a VZERO hit
1087   
1088   TClonesArray &lhits = *fHits;
1089   new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1090 }
1091
1092 //_____________________________________________________________________________
1093 void AliVZEROv2::AddDigits(Int_t *tracks, Int_t* digits) 
1094 {
1095
1096 //  Adds a VZERO digit
1097
1098    TClonesArray  &ldigits = *fDigits;
1099    new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1100 }
1101
1102 //_____________________________________________________________________________
1103 void AliVZEROv2::MakeBranch(Option_t *option)
1104 {
1105   
1106 // Creates new branches in the current Root Tree
1107     
1108   char branchname[10];
1109   sprintf(branchname,"%s",GetName());
1110   AliDebug(2,Form("fBufferSize = %d",fBufferSize));
1111   
1112   const char *cH = strstr(option,"H");
1113   
1114   if (fHits   && TreeH() && cH) {
1115     TreeH()->Branch(branchname,&fHits, fBufferSize);
1116     AliDebug(2,Form("Making Branch %s for hits",branchname));
1117   }     
1118
1119   const char *cD = strstr(option,"D");
1120   
1121   if (fDigits   && fLoader->TreeD() && cD) {
1122     fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1123     AliDebug(2,Form("Making Branch %s for digits",branchname));
1124   }  
1125    
1126 }