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47d9b1cb 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16
17//////////////////////////////////////////////////////////////////////
18// //
19// (V-zero) detector version 2 as designed by the Lyon group //
20// All comments should be sent to Brigitte CHEYNIS : //
21// b.cheynis@ipnl.in2p3.fr //
22// Geometry of the 19th of april 2002 //
23// (circular instead of trapezoidal shapes as in previous versions //
24// //
25//////////////////////////////////////////////////////////////////////
26
27#include <TMath.h>
28#include <TGeometry.h>
29#include <TTRD2.h>
30#include <TCONE.h>
31#include <TPGON.h>
32#include <TPCON.h>
33#include <TSPHE.h>
34#include <TTRAP.h>
35#include <TTUBS.h>
36#include <TTUBE.h>
37#include <TBRIK.h>
38#include <TBox.h>
39
40#include <TShape.h>
41#include <TNode.h>
42#include <TClonesArray.h>
43#include <TH1.h>
44#include <string.h>
45#include <iostream.h>
46
47#include "AliVZEROv2.h"
48#include "AliRun.h"
49#include "AliMagF.h"
50#include "AliMC.h"
51#include "AliVZEROhit.h"
52#include "AliVZEROdigit.h"
53#include <iostream.h>
54#include <fstream.h>
55
56#include <TGeant3.h>
57#include <stdlib.h>
58#include "TObjectTable.h"
59
60#include "AliConst.h"
61#include "TLorentzVector.h"
62
63ClassImp(AliVZEROv2)
64
65//--------------------------------------------------------------------
66AliVZEROv2:: AliVZEROv2():AliVZERO()
67{
68
69
70}
71//--------------------------------------------------------------------
72AliVZEROv2::AliVZEROv2(const char *name, const char *title):
73 AliVZERO(name,title)
74{
75
76// Standard constructor for V-zeroR Detector (right part) version 0
77
78
79 Int_t i;
80
81 printf("\n");
82 for(i=0;i<30;i++) printf("*");
83 printf(" Create VZERO object ");
84 for(i=0;i<30;i++) printf("*");
85 printf("\n");
86
87}
88
89//-------------------------------------------------------------------------
90void AliVZEROv2::CreateGeometry()
91{
92
93// Creates the GEANT geometry of the V-zero Detector version 2
94
95
96 Int_t i;
97
98 printf("\n");
99 for(i=0;i<30;i++) printf("*");
100 printf(" Create VZERO Geometry ");
101 for(i=0;i<30;i++) printf("*");
102 printf("\n");
103
104
105 Int_t *idtmed = fIdtmed->GetArray()-2999;
106
107 Int_t n_detec_R = 1;
108 Int_t n_detec_L = 1;
109
110 Int_t n_cells_R = 1;
111 Int_t n_cells_L = 1;
112
113 Int_t idrotm[999];
114
115 Float_t height1, height2, height3, height4, height5;
116 Float_t height;
117 Float_t theta;
118
119 Float_t half_thick_qua;
120
121 Float_t zdet;
122 Float_t r0, r5;
123 Float_t pi = TMath::Pi();
124
125
126 height1 = 2.0; // height of cell 1, in cm
127 height2 = 3.2; // height of cell 2, in cm
128 height3 = 4.9; // height of cell 3, in cm
129 height4 = 7.5; // height of cell 4, in cm
130 height5 = 12.0; // height of cell 5, in cm
131
132 theta = pi/6.0/2.0; // half angular opening = 15 degrees
133
134
135 half_thick_qua = fThickness1/2.0; // half thickness of elementary cell (inner ring)
136
137
138 zdet = 86.9 +fThickness/2.0; // distance to vertex (along Z axis)
139 r0 = 4.0; // closest distance to center of the beam pipe
140 height = height1 + height2 + height3 + height4 + height5;
141 r5 = r0 + height;
142
143
144// Creation of mother volume V0LE - left part - :
145// Entrance face at -350.0 cm ...
146
147 Float_t partube[3];
148
149 partube[0] = 4.3;
150 partube[1] = 45.0;
151 partube[2] = fThickness1/2.0;
152
153 gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
154
155
156// Creation of five rings - left part - :
157// Entrance face at -350.0 cm ...
158
159// Mother volume V0L0 in which will be set 5 scintillator cells
160
161
162 Float_t partubs[5];
163
164 Float_t r0_left = 4.3;
165 Float_t height1_left = 2.6;
166 Float_t height2_left = 4.1;
167 Float_t height3_left = 6.4;
168 Float_t height4_left = 10.2;
169 Float_t height5_left = 16.9;
170 Float_t height_left = height1_left + height2_left + height3_left
171 + height4_left + height5_left;
172 Float_t r5_left = r0_left + height_left;
173
174
175 partubs[0] = r0_left;
176 partubs[1] = r5_left;
177 partubs[2] = fThickness1/2.0;
178 partubs[3] = 90.0-15.0;
179 partubs[4] = 120.0-15.0;
180
181 gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume
182
183 Float_t r1_left = r0_left + height1_left;
184
185 partubs[0] = r0_left;
186 partubs[1] = r1_left;
187
188 gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume
189 gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
190
191 Float_t r2_left = r1_left + height2_left;
192
193 partubs[0] = r1_left;
194 partubs[1] = r2_left;
195
196 gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume
197 gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
198
199 Float_t r3_left = r2_left + height3_left;
200
201 partubs[0] = r2_left;
202 partubs[1] = r3_left;
203
204 gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5); // quartz volume
205 gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
206
207 Float_t r4_left = r3_left + height4_left;
208
209 partubs[0] = r3_left;
210 partubs[1] = r4_left;
211
212
213 gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5); // quartz volume
214 gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
215
216 partubs[0] = r4_left;
217 partubs[1] = r5_left;
218 partubs[3] = 90.0-15.0;
219 partubs[4] = 120.0-30.0;
220
221
222 gMC->Gsvolu("V0L5","TUBS",idtmed[3005],partubs,5); // quartz volume
223 gMC->Gspos("V0L5",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
224
225
226 partubs[3] = 120.0-30.0;
227 partubs[4] = 120.0-15.0;
228
229
230 gMC->Gsvolu("V0L6","TUBS",idtmed[3005],partubs,5); // quartz volume
231 gMC->Gspos("V0L6",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
232
233
234// Creation of mother volume V0RI - right part - :
235
236
237 partube[0] = r0 - 0.2;
238 partube[1] = r5 + 1.0;
239 partube[2] = fThickness/2.0;
240
241
242 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
243
244// Creation of carbon lids (1 mm thick) to keep V0RI box shut...
245
246
247 partube[0] = r0;
248 partube[1] = r5;
249 partube[2] = +0.1/2.0;
250
251
252 gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3);
253 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
254 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
255
256// Creation of aluminum rings to maintain the V0RI pieces ...
257
258 partube[0] = r0 - 0.2;
259 partube[1] = r0;
260 partube[2] = +fThickness/2.0;
261
262
263 gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);
264 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
265
266 partube[0] = r5;
267 partube[1] = r5 + 1.0;
268 partube[2] = +fThickness/2.0;
269
270
271 gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);
272 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
273
274// Mother volume V0R0 in which will be set 5 scintillator cells
275
276
277 partubs[0] = r0;
278 partubs[1] = r5;
279 partubs[2] = fThickness/2.0;
280 partubs[3] = 90.0-15.0;
281 partubs[4] = 120.0-15.0;
282
283 gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume
284
285
286// Elementary cell of ring 1 :
287// (the cells will be shifted by 3 mm to output fibers)
288
289 Float_t offset_fibers = 0.3;
290 Float_t offset = -fThickness/2.0 + 0.1;
291 Float_t r1 = r0 + height1;
292
293 partubs[0] = r0;
294 partubs[1] = r1;
295 partubs[2] = fThickness1/2.0;
296
297 gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume
298 gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , 0.0, 0,"ONLY");
299
300// Elementary cell of ring 2 :
301
302 Float_t r2 = r1 + height2;
303
304 partubs[0] = r1;
305 partubs[1] = r2;
306
307 gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume
308 gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , offset_fibers, 0,"ONLY");
309
310
311// Elementary cell of ring 3 :
312
313 Float_t r3 = r2 + height3;
314
315 partubs[0] = r2;
316 partubs[1] = r3;
317
318 gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume
319 gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , 2.0 * offset_fibers, 0,"ONLY");
320
321// Elementary cell of ring 4 :
322
323 Float_t r4 = r3 + height4 ;
324
325 partubs[0] = r3;
326 partubs[1] = r4;
327
328 gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5); // scintillator volume
329 gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , 3.0 * offset_fibers, 0,"ONLY");
330
331// Elementary cells of ring 5 :
332
333 partubs[0] = r4;
334 partubs[1] = r5;
335 partubs[3] = 90.0-15.0;
336 partubs[4] = 120.0-30.0;
337
338
339 gMC->Gsvolu("V0R5","TUBS",idtmed[3005],partubs,5); // scintillator volume
340 gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , 4.0 * offset_fibers, 0,"ONLY");
341
342
343 partubs[3] = 120.0-30.0;
344 partubs[4] = 120.0-15.0;
345
346
347 gMC->Gsvolu("V0R6","TUBS",idtmed[3005],partubs,5); // scintillator volume
348 gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 , 4.0 * offset_fibers, 0,"ONLY");
349
350
351 Float_t phi_deg = 180./6.;
352
353// Right part :
354
355 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
356 {
357 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
358 gMC->Gspos("V0R0",n_detec_R,"V0RI",0.0,
359 0.0,offset + half_thick_qua,idrotm[902],"ONLY");
360 n_detec_R++;
361 }
362
363
364 gMC->Gspos("V0RI",1,"alic",0.0,0.0,zdet,0,"ONLY");
365
366 n_cells_R = (n_detec_R - 1) * 5;
367 printf(" \n\n\n");
368 printf(" Number of cells on Right side = %d\n", n_cells_R);
369
370// Left part :
371
372 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
373 {
374 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
375 gMC->Gspos("V0L0",n_detec_L,"V0LE",0.0,
376 0.0,0.0,idrotm[902],"ONLY");
377 n_detec_L++;
378 }
379
380
381 gMC->Gspos("V0LE",1,"alic",0.0,0.0,-350.0-fThickness1/2.0,0,"ONLY");
382
383 n_cells_L = (n_detec_L - 1) * 5;
384 printf(" \n\n\n");
385 printf(" Number of cells on Left side = %d\n\n", n_cells_L);
386
387
388}
389
390
391
392//_____________________________________________________________________________
393void AliVZEROv2::BuildGeometry()
394{
395
396// Builds simple ROOT TNode geometry for event display
397
398
399 Int_t i;
400
401 printf("\n");
402 for(i=0;i<30;i++) printf("*");
403 printf(" VZERO BuildGeometry ");
404 for(i=0;i<30;i++) printf("*");
405 printf("\n");
406
407 TNode *Top;
408
409 TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
410 TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
411 TNode *V0Lnode, *V0Lnode0;
412 TNode *V0Lnode1, *V0Lnode2, *V0Lnode3, *V0Lnode4, *V0Lnode5, *V0Lnode6;
413
414 const int kColorVZERO = kGreen;
415
416 Top = gAlice->GetGeometry()->GetNode("alice");
417
418 Float_t height1, height2, height3, height4, height5;
419 Float_t height;
420 Float_t theta;
421
422 Float_t half_thick_qua;
423 Float_t zdet;
424 Float_t r0, r5;
425 Float_t pi = TMath::Pi();
426
427
428 height1 = 2.0; // height of cell 1, in cm
429 height2 = 3.2; // height of cell 2, in cm
430 height3 = 4.9; // height of cell 3, in cm
431 height4 = 7.5; // height of cell 4, in cm
432 height5 = 12.0; // height of cell 5, in cm
433
434 theta = pi/6.0/2.0;
435
436 half_thick_qua = fThickness1/2.0;
437
438 zdet = 86.9 +fThickness/2.0;
439 r0 = 4.0;
440 height = height1 + height2 + height3 + height4 + height5;
441 r5 = r0 + height;
442
443 Int_t ndiv = 1;
444
445 Float_t partube[3];
446
447 partube[0] = r0 - 0.2;
448 partube[1] = r5 + 1.0;
449 partube[2] = fThickness/2.0;
450
451 TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
452
453 Top->cd();
454
455 V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
456
457 V0Rnode->SetLineColor(kBlue);
458 fNodes->Add(V0Rnode);
459
460 V0Rnode->SetVisibility(2);
461
462
463// Rondelles de carbone (epaisseur 1 mm) de maintien des cellules ...
464
465
466 partube[0] = r0;
467 partube[1] = r5;
468 partube[2] = +0.1/2.0;
469
470 TTUBE *V0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
471
472 V0Rnode->cd();
473 V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-partube[2],0);
474 V0Rnode6->SetLineColor(kYellow);
475 fNodes->Add(V0Rnode6);
476 V0Rnode->cd();
477 V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+partube[2],0);
478 V0Rnode7->SetLineColor(kYellow);
479 fNodes->Add(V0Rnode7);
480
481 partube[0] = r0 - 0.2;
482 partube[1] = r0;
483 partube[2] = +fThickness/2.0;
484
485 TTUBE *V0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
486
487
488 V0Rnode->cd();
489 V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
490 V0Rnode8->SetLineColor(kYellow);
491 fNodes->Add(V0Rnode8);
492
493 partube[0] = r5;
494 partube[1] = r5 + 1.0;
495 partube[2] = +fThickness/2.0;
496
497 TTUBE *V0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
498
499 V0Rnode->cd();
500 V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
501 V0Rnode9->SetLineColor(kYellow);
502 fNodes->Add(V0Rnode9);
503
504 Float_t partubs[5];
505
506 partubs[0] = r0;
507 partubs[1] = r5;
508 partubs[2] = fThickness/2.0;
509 partubs[3] = 90.0-15.0;
510 partubs[4] = 120.0-15.0;
511
512
513 TTUBS *V0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2],
514 partubs[3], partubs[4]);
515
516 V0R0->SetNumberOfDivisions(ndiv);
517 V0R0->SetLineColor(7);
518
519 Float_t r1 = r0 + height1;
520 Float_t offset = - fThickness/2.0 + 0.1;
521 Float_t offset_fibers = 0.3;
522
523 partubs[0] = r0;
524 partubs[1] = r1;
525 partubs[2] = fThickness1/2.0;
526
527 TTUBS *V0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2],
528 partubs[3], partubs[4]);
529
530 V0R1->SetNumberOfDivisions(ndiv);
531
532 Float_t r2 = r1 + height2;
533
534
535 partubs[0] = r1;
536 partubs[1] = r2;
537
538 TTUBS *V0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2],
539 partubs[3], partubs[4]);
540
541 V0R2->SetNumberOfDivisions(ndiv);
542
543 Float_t r3 = r2 + height3;
544
545
546 partubs[0] = r2;
547 partubs[1] = r3;
548
549 TTUBS *V0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2],
550 partubs[3], partubs[4]);
551 V0R3->SetNumberOfDivisions(ndiv);
552
553 Float_t r4 = r3 + height4;
554
555 partubs[0] = r3;
556 partubs[1] = r4;
557
558 TTUBS *V0R4 = new TTUBS("V0R4", "V0R4", "void", partubs[0], partubs[1], partubs[2],
559 partubs[3], partubs[4]);
560
561 V0R4->SetNumberOfDivisions(ndiv);
562
563 partubs[0] = r4;
564 partubs[1] = r5;
565 partubs[3] = 90.0-15.0;
566 partubs[4] = 120.0-30.0;
567
568 TTUBS *V0R5 = new TTUBS("V0R5", "V0R5", "void", partubs[0], partubs[1], partubs[2],
569 partubs[3], partubs[4]);
570
571
572 V0R5->SetNumberOfDivisions(ndiv);
573
574 partubs[3] = 120.0-30.0;
575 partubs[4] = 120.0-15.0;
576
577 TTUBS *V0R6 = new TTUBS("V0R6", "V0R6", "void", partubs[0], partubs[1], partubs[2],
578 partubs[3], partubs[4]);
579
580
581 V0R6->SetNumberOfDivisions(ndiv);
582
583
584 Float_t phi;
585 Float_t phi_deg= 180./6.;
586
587
588 Int_t n_detec_R = 1;
589
590 char NameNode[12];
591
592
593 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
594
595 {
596
597 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
598
599
600 sprintf(NameNode,"SUBDER%d",n_detec_R);
601
602 V0Rnode->cd();
603 V0Rnode0 = new TNode(NameNode,NameNode,V0R0,0.0,0.0, offset + half_thick_qua,mat920);
604 V0Rnode0->SetLineColor(kColorVZERO);
605 fNodes->Add(V0Rnode0);
606 n_detec_R++;
607
608 sprintf(NameNode,"SUBDER%d",n_detec_R);
609 V0Rnode0->cd();
610 V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,0.0, 0.0,0);
611 V0Rnode1->SetLineColor(kColorVZERO);
612 fNodes->Add(V0Rnode1);
613 n_detec_R++;
614
615 sprintf(NameNode,"SUBDER%d",n_detec_R);
616 V0Rnode0->cd();
617 V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,0.0, offset_fibers,0);
618 V0Rnode2->SetLineColor(kColorVZERO);
619 fNodes->Add(V0Rnode2);
620 n_detec_R++;
621
622
623 sprintf(NameNode,"SUBDER%d",n_detec_R);
624 V0Rnode0->cd();
625 V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,0.0, 2.0*offset_fibers,0);
626 V0Rnode3->SetLineColor(kColorVZERO);
627 fNodes->Add(V0Rnode3);
628 n_detec_R++;
629
630 sprintf(NameNode,"SUBDER%d",n_detec_R);
631 V0Rnode0->cd();
632 V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,0.0, 3.0*offset_fibers,0);
633 V0Rnode4->SetLineColor(kColorVZERO);
634 fNodes->Add(V0Rnode4);
635 n_detec_R++;
636
637 sprintf(NameNode,"SUBDER%d",n_detec_R);
638 V0Rnode0->cd();
639 V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,0.0, 4.0*offset_fibers,0);
640 V0Rnode5->SetLineColor(kColorVZERO);
641 fNodes->Add(V0Rnode5);
642 n_detec_R++;
643
644 sprintf(NameNode,"SUBDER%d",n_detec_R);
645 V0Rnode0->cd();
646 V0Rnode6 = new TNode(NameNode,NameNode,V0R6,0.0,0.0, 4.0*offset_fibers,0);
647 V0Rnode6->SetLineColor(kColorVZERO);
648 fNodes->Add(V0Rnode6);
649 n_detec_R++;
650
651 V0Rnode0->SetVisibility(2);
652
653 }
654
655
656
657// Left side of VZERO :
658
659
660 Float_t r0_left = 4.3;
661 Float_t height1_left = 2.6;
662 Float_t height2_left = 4.1;
663 Float_t height3_left = 6.4;
664 Float_t height4_left = 10.2;
665 Float_t height5_left = 16.9;
666 Float_t height_left = height1_left + height2_left + height3_left
667 + height4_left + height5_left;
668 Float_t r5_left = r0_left + height_left;
669
670 partube[0] = r0_left;
671 partube[1] = r5_left;
672 partube[2] = fThickness1/2.0;
673
674 TTUBE *V0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
675
676 Top->cd();
677
678 V0Lnode = new TNode("V0LE","V0LE",V0LE,0.0,0.0,-350.0-fThickness1/2.0,0);
679
680 V0Lnode->SetLineColor(kBlue);
681 fNodes->Add(V0Lnode);
682
683 V0Lnode->SetVisibility(2);
684
685 partubs[0] = r0_left;
686 partubs[1] = r5_left;
687 partubs[2] = fThickness1/2.0;
688 partubs[3] = 90.0-15.0;
689 partubs[4] = 120.0-15.0;
690
691 TTUBS *V0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2],
692 partubs[3], partubs[4]);
693
694 V0L0->SetNumberOfDivisions(ndiv);
695 V0L0->SetLineColor(7);
696
697 Float_t offset_left;
698 offset_left = - fThickness1/2.0;
699
700 Float_t r1_left = r0_left + height1_left;
701
702 partubs[0] = r0_left;
703 partubs[1] = r1_left;
704
705 TTUBS *V0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2],
706 partubs[3], partubs[4]);
707
708 V0L1->SetNumberOfDivisions(ndiv);
709
710 Float_t r2_left = r1_left + height2_left;
711
712 partubs[0] = r1_left;
713 partubs[1] = r2_left;
714
715 TTUBS *V0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2],
716 partubs[3], partubs[4]);
717
718 V0L2->SetNumberOfDivisions(ndiv);
719
720 Float_t r3_left = r2_left + height3_left;
721
722 partubs[0] = r2_left;
723 partubs[1] = r3_left;
724
725 TTUBS *V0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2],
726 partubs[3], partubs[4]);
727 V0L3->SetNumberOfDivisions(ndiv);
728
729 Float_t r4_left = r3_left + height4_left;
730
731 partubs[0] = r3_left;
732 partubs[1] = r4_left;
733
734 TTUBS *V0L4 = new TTUBS("V0L4", "V0L4", "void", partubs[0], partubs[1], partubs[2],
735 partubs[3], partubs[4]);
736
737 V0L4->SetNumberOfDivisions(ndiv);
738
739 partubs[0] = r4_left;
740 partubs[1] = r5_left;
741 partubs[3] = 90.0-15.0;
742 partubs[4] = 120.0-30.0;
743
744 TTUBS *V0L5 = new TTUBS("V0L5", "V0L5", "void", partubs[0], partubs[1], partubs[2],
745 partubs[3], partubs[4]);
746
747
748 V0L5->SetNumberOfDivisions(ndiv);
749
750 partubs[3] = 120.0-30.0;
751 partubs[4] = 120.0-15.0;
752
753 TTUBS *V0L6 = new TTUBS("V0L6", "V0L6", "void", partubs[0], partubs[1], partubs[2],
754 partubs[3], partubs[4]);
755
756
757 V0L6->SetNumberOfDivisions(ndiv);
758
759 Int_t n_detec_L = 1;
760
761
762 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
763
764 {
765
766 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
767
768
769 sprintf(NameNode,"SUBDEL%d",n_detec_L);
770
771 V0Lnode->cd();
772 V0Lnode0 = new TNode(NameNode,NameNode,V0L0,0.0,0.0, offset_left + half_thick_qua,mat920);
773 V0Lnode0->SetLineColor(kColorVZERO);
774 fNodes->Add(V0Lnode0);
775 n_detec_L++;
776
777 sprintf(NameNode,"SUBDEL%d",n_detec_L);
778 V0Lnode0->cd();
779 V0Lnode1 = new TNode(NameNode,NameNode,V0L1,0.0,0.0, 0.0,0);
780 V0Lnode1->SetLineColor(kColorVZERO);
781 fNodes->Add(V0Lnode1);
782 n_detec_L++;
783
784 sprintf(NameNode,"SUBDEL%d",n_detec_L);
785 V0Lnode0->cd();
786 V0Lnode2 = new TNode(NameNode,NameNode,V0L2,0.0,0.0, 0.0,0);
787 V0Lnode2->SetLineColor(kColorVZERO);
788 fNodes->Add(V0Lnode2);
789 n_detec_L++;
790
791
792 sprintf(NameNode,"SUBDEL%d",n_detec_L);
793 V0Lnode0->cd();
794 V0Lnode3 = new TNode(NameNode,NameNode,V0L3,0.0,0.0, 0.0,0);
795 V0Lnode3->SetLineColor(kColorVZERO);
796 fNodes->Add(V0Lnode3);
797 n_detec_L++;
798
799 sprintf(NameNode,"SUBDEL%d",n_detec_L);
800 V0Lnode0->cd();
801 V0Lnode4 = new TNode(NameNode,NameNode,V0L4,0.0,0.0, 0.0,0);
802 V0Lnode4->SetLineColor(kColorVZERO);
803 fNodes->Add(V0Lnode4);
804 n_detec_L++;
805
806 sprintf(NameNode,"SUBDEL%d",n_detec_L);
807 V0Lnode0->cd();
808 V0Lnode5 = new TNode(NameNode,NameNode,V0L5,0.0,0.0, 0.0,0);
809 V0Lnode5->SetLineColor(kColorVZERO);
810 fNodes->Add(V0Lnode5);
811 n_detec_L++;
812
813 sprintf(NameNode,"SUBDEL%d",n_detec_L);
814 V0Lnode0->cd();
815 V0Lnode6 = new TNode(NameNode,NameNode,V0L6,0.0,0.0, 0.0,0);
816 V0Lnode6->SetLineColor(kColorVZERO);
817 fNodes->Add(V0Lnode6);
818 n_detec_L++;
819
820 V0Lnode0->SetVisibility(2);
821
822 }
823
824
825}
826
827
828//------------------------------------------------------------------------
829void AliVZEROv2::CreateMaterials()
830{
831 Int_t i;
832
833 printf("\n");
834 for(i=0;i<30;i++) printf("*");
835 printf(" VZERO create materials ");
836 for(i=0;i<30;i++) printf("*");
837 printf("\n");
838
839/*
840 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,
841 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
842
843
844 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,
845 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
846
847 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
848 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
849 1.662295, 1.68337 };
850
851 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
852 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
853
854 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
855
856
857 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
858
859
860 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,
861 1e-4,1e-4,1e-4,1e-4 };
862 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
863
864*/
865
866 Int_t *idtmed = fIdtmed->GetArray()-2999;
867
868// TGeant3 *geant3 = (TGeant3*) gMC;
869
870// Parameters related to Quarz (SiO2) :
871
872 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
873 Int_t nlmatqua;
874
875 aqua[0] = 28.09;
876 aqua[1] = 16.;
877 zqua[0] = 14.;
878 zqua[1] = 8.;
879 densqua = 2.64;
880 nlmatqua = -2;
881 wmatqua[0] = 1.;
882 wmatqua[1] = 2.;
883
884// Parameters related to aluminum sheets :
885
886 Float_t aal = 26.98;
887 Float_t zal = 13.00;
888 Float_t densal= 2.7;
889 Float_t radlal= 8.9;
890
891// Parameters related to scintillator CH :
892
893 Float_t ascin[2] = {1.00794,12.011};
894 Float_t zscin[2] = {1.,6.};
895 Float_t wscin[2] = {1.,1.};
896 Float_t denscin = 1.032;
897
898// Definition of materials :
899
900 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
901 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
902 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
903 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
904 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
905 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
906
907 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
908
909
910 Int_t ISXFLD = gAlice->Field()->Integ();
911 Float_t SXMGMX = gAlice->Field()->Max();
912
913 Float_t tmaxfd, stemax, deemax, epsil, stmin;
914
915 tmaxfd = 10.;
916 stemax = 0.1;
917 deemax = 0.1;
918 epsil = 0.001;
919 stmin = 0.001;
920
921// Active Air :
922 AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX,
923 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
924
925// Inactive air :
926
927 AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX,
928 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
929
930 AliMedium(2, "CARBON$ ", 2, 1, ISXFLD, SXMGMX,
931 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
932
933 AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX,
934 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
935
936 AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX,
937 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
938
939
940 AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX,
941 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
942
943 AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
944
945 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
946 gMC->Gstpar(idtmed[3000], "HADR", 1.);
947 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
948 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
949
950 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
951 gMC->Gstpar(idtmed[3001], "HADR", 1.);
952 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
953 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
954
955 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
956 gMC->Gstpar(idtmed[3002], "HADR", 1.);
957 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
958 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
959 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
960 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
961
962 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
963 gMC->Gstpar(idtmed[3003], "HADR", 1.);
964 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
965 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
966
967 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
968 gMC->Gstpar(idtmed[3004], "HADR", 1.);
969 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
970 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
971 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
972 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
973
974 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
975 gMC->Gstpar(idtmed[3005], "HADR", 1.);
976 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
977 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
978 gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ;
979 gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
980
981
982// geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
983// geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
984
985// gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
986// gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
987
988
989}
990//---------------------------------------------------------------------
991void AliVZEROv2::DrawModule()
992{
993
994// Drawing is done in DrawVZERO.C
995
996 Int_t i;
997
998 printf("\n");
999 for(i=0;i<30;i++) printf("*");
1000 printf(" VZERO DrawModule ");
1001 for(i=0;i<30;i++) printf("*");
1002 printf("\n");
1003
1004
1005}
1006
1007//-------------------------------------------------------------------
1008void AliVZEROv2::Init()
1009{
1010// Initialises version 1 of the VZERO Detector
1011// Just prints an information message
1012
1013 printf(" VZERO version %d initialized \n",IsVersion());
1014
1015// gMC->SetMaxStep(fMaxStepAlu);
1016// gMC->SetMaxStep(fMaxStepQua);
1017
1018 AliVZERO::Init();
1019
1020}
1021
1022//-------------------------------------------------------------------
1023
1024void AliVZEROv2::StepManager()
1025{
1026
1027 Int_t copy;
1028 static Int_t vol[4];
1029 static Float_t hits[16];
1030 static Float_t eloss, tlength;
1031
1032 TLorentzVector pos;
1033 TLorentzVector mom;
1034
1035 Float_t theta;
1036 Float_t phi;
1037 Float_t kRaddeg = 180/TMath::Pi();
1038 Float_t RingNumber;
1039
1040 Int_t ipart;
1041 Float_t destep, step;
1042
1043
1044// We keep only charged tracks :
1045
1046 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
1047
1048
1049 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
1050 vol[2] = gMC->CurrentVolID(copy);
1051 vol[3] = copy;
1052
1053
1054 if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
1055 gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
1056 RingNumber = 1.0;
1057 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
1058 gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
1059 RingNumber = 2.0;
1060 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
1061 gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
1062 RingNumber = 3.0;
1063 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
1064 gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
1065 RingNumber = 4.0;
1066 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
1067 gMC->CurrentVolID(copy) == gMC->VolId("V0L5") ||
1068 gMC->CurrentVolID(copy) == gMC->VolId("V0L6") ||
1069 gMC->CurrentVolID(copy) == gMC->VolId("V0R6") )
1070 RingNumber = 5.0;
1071 else
1072 RingNumber = 0.0;
1073
1074 if ( RingNumber > 0.5 ) {
1075
1076 destep = gMC->Edep();
1077 step = gMC->TrackStep();
1078 eloss += destep;
1079 tlength += step;
1080
1081
1082 if ( gMC->IsTrackEntering() ) {
1083
1084 gMC->TrackPosition(pos);
1085
1086 gMC->TrackMomentum(mom);
1087 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1088 Double_t Pt = TMath::Sqrt(tc);
1089 Double_t Pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1090 theta = Float_t(TMath::ATan2(Pt,Double_t(mom[2])))*kRaddeg;
1091 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1092
1093 ipart = gMC->TrackPid();
1094
1095 hits[0] = pos[0];
1096 hits[1] = pos[1];
1097 hits[2] = pos[2];
1098 hits[3] = ipart;
1099
1100 hits[4] = gMC->TrackTime();
1101 hits[5] = gMC->TrackCharge();
1102 hits[6] = theta;
1103 hits[7] = phi;
1104 hits[8] = RingNumber;
1105
1106 hits[9] = Pt;
1107 hits[10] = Pmom;
1108 hits[11] = mom[0];
1109 hits[12] = mom[1];
1110 hits[13] = mom[2];
1111
1112 tlength = 0.0;
1113 eloss = 0.0;
1114
1115 }
1116
1117 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1118
1119 hits[14] = eloss;
1120 hits[15] = tlength;
1121
1122 AddHit(gAlice->CurrentTrack(), vol, hits);
1123
1124 tlength = 0.0;
1125 eloss = 0.0;
1126
1127
1128 }
1129 }
1130
1131}
1132
1133//_____________________________________________________________________________
1134void AliVZEROv2::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1135{
1136
1137 // Add a VZERO hit
1138
1139
1140 TClonesArray &lhits = *fHits;
1141 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1142}
1143
1144//---------------------------------------------------------------------
1145void AliVZEROv2::AddDigits(Int_t *tracks, Int_t* digits)
1146{
1147
1148 TClonesArray &ldigits = *fDigits;
1149 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1150}
1151
1152//---------------------------------------------------------------------
1153void AliVZEROv2::MakeBranch(Option_t *option)
1154{
1155
1156 // Creates new branches in the current Root Tree
1157
1158
1159 char branchname[10];
1160 sprintf(branchname,"%s",GetName());
1161 printf(" fBufferSize = %d \n",fBufferSize);
1162
1163 char *H = strstr(option,"H");
1164
1165 if (fHits && gAlice->TreeH() && H) {
1166 gAlice->TreeH()->Branch(branchname,&fHits, fBufferSize);
1167 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1168 }
1169
1170 char *D = strstr(option,"D");
1171 //
1172 if (fDigits && gAlice->TreeD() && D) {
1173 gAlice->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1174 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
1175 }
1176
1177}