Logging of Debug, Info and Error Messages follwing AliRoot Standard http://aliweb...
[u/mrichter/AliRoot.git] / VZERO / AliVZEROv4.cxx
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79b41939 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/* $Id$ */
17
18//////////////////////////////////////////////////////////////////////
19// //
20// (V-zero) detector version 4 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 24th of february 2004 //
24// (now 4 rings instead of 3 rings as in previous version) //
25// V0R (now V0C) sits between Z values -89.4 and -84.9 cm //
26// V0L (now V0A) sits between Z values +350.0 and +352.0 cm //
27// New coordinate system has been implemented in october 2003 //
28// //
29//////////////////////////////////////////////////////////////////////
30
31// --- Standard libraries ---
32#include <Riostream.h>
33#include <stdlib.h>
34#include <string.h>
35
36// --- ROOT libraries ---
37#include <TClonesArray.h>
79b41939 38#include <TGeometry.h>
39#include <TLorentzVector.h>
40#include <TMath.h>
41#include <TNode.h>
42#include <TObjectTable.h>
43#include <TTUBE.h>
44#include <TTUBS.h>
45#include <TVirtualMC.h>
46#include <TParticle.h>
47
48// --- AliRoot header files ---
49#include "AliRun.h"
50#include "AliMC.h"
51#include "AliConst.h"
52#include "AliMagF.h"
53#include "AliVZEROLoader.h"
54#include "AliVZEROdigit.h"
55#include "AliVZEROhit.h"
56#include "AliVZEROv4.h"
57
58ClassImp(AliVZEROv4)
59
60//_____________________________________________________________________________
61AliVZEROv4:: AliVZEROv4():AliVZERO()
62{
63// Standard default constructor
64}
65
66//_____________________________________________________________________________
67AliVZEROv4::AliVZEROv4(const char *name, const char *title):
68 AliVZERO(name,title)
69{
70
71// Standard constructor for V-zero Detector version 2
72
73 Int_t i;
74
75 printf("\n");
76 for(i=0;i<26;i++) printf("*");
77 printf(" Create VZERO object ");
78 for(i=0;i<26;i++) printf("*");
79 printf("\n");
80
81 fLightYield = 93.75; // Light yield in BC408 (93.75 eV per photon)
82 fLightAttenuation = 0.05; // Light attenuation in fiber (0.05 per meter)
83 fnMeters = 15.0; // Number of meters of clear fibers to PM
84 fFibToPhot = 0.3; // Attenuation at fiber-photocathode interface
85}
86
87//_____________________________________________________________________________
88void AliVZEROv4::CreateGeometry()
89{
90
91// Creates the GEANT geometry of the V-zero Detector version 3
92
93 Int_t i;
94
95 printf("\n");
96 for(i=0;i<26;i++) printf("*");
97 printf(" Create VZERO Geometry ");
98 for(i=0;i<26;i++) printf("*");
99 printf("\n");
100
101 Int_t *idtmed = fIdtmed->GetArray()-2999;
102
103 Int_t ndetR = 1;
104 Int_t ndetL = 1;
105
106 Int_t ncellsR = 1;
107 Int_t ncellsL = 1;
108
109 Int_t idrotm[999];
110
111 Float_t height1Right, height2Right, height3Right, height4Right;
112 Float_t heightRight;
113 Float_t theta;
114
115 Float_t halfThickQua;
116
117 Float_t zdet;
118 Float_t r0Right, r4Right;
119 Float_t pi = TMath::Pi();
120
121 height1Right = 3.42; // height of cell 1, in cm
122 height2Right = 6.78; // height of cell 2, in cm
123 height3Right = 7.11; // height of cell 3, in cm
124 height4Right = 10.91; // height of cell 4, in cm
125
126 theta = pi/6.0/2.0; // half angular opening = 15 degrees
127
128 halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring)
129
130// distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from
131// absorber nose sitting at 90 cm. Will use -zdet later...
132// size of V0R box (fThickness) is increased by 1 mm as compared to version v2
133
134 fThickness = fThickness + 0.1;
135 zdet = 90.0 - 0.6 - fThickness/2.0; // distance to vertex (along Z axis)
136 r0Right = 4.05; // closest distance to center of the beam pipe
137 heightRight = height1Right + height2Right + height3Right + height4Right;
138 r4Right = r0Right + heightRight;
139
140// Creation of mother volume v0LE - left part - :
141// Entrance face at +350.0 cm (new coordinate system) ...
142
143 Float_t partube[3];
144
145 partube[0] = 4.3;
146 partube[1] = 45.0;
147 partube[2] = fThickness1/2.0;
148
149 gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
150
151// Creation of five rings - left part - :
152// Entrance face at +350.0 cm (new coordinate system) ...
153
154// Mother volume v0L0 in which will be set 5 scintillator cells
155
156 Float_t partubs[5];
157
158 Float_t r0Left = 4.3;
159 Float_t height1Left = 3.6;
160 Float_t height2Left = 6.4;
161 Float_t height3Left = 14.9;
162 Float_t height4Left = 14.4;
163 Float_t heightLeft = height1Left + height2Left + height3Left + height4Left;
164
165 Float_t r4Left = r0Left + heightLeft;
166
167 partubs[0] = r0Left;
168 partubs[1] = r4Left;
169 partubs[2] = fThickness1/2.0;
170 partubs[3] = 90.0-15.0;
171 partubs[4] = 120.0-15.0;
172
173 gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume
174
175 Float_t r1Left = r0Left + height1Left;
176
177 partubs[0] = r0Left;
178 partubs[1] = r1Left;
179
180 gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume
181 gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
182
183 Float_t r2Left = r1Left + height2Left;
184
185 partubs[0] = r1Left;
186 partubs[1] = r2Left;
187
188 gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume
189 gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
190
191 Float_t r3Left = r2Left + height3Left;
192
193 partubs[0] = r2Left;
194 partubs[1] = r3Left;
195
196 gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5); // quartz volume
197 gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
198
199 partubs[0] = r3Left;
200 partubs[1] = r4Left;
201
202 gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5); // quartz volume
203 gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
204
205// Creation of mother volume v0RI - right part - :
206
207 partube[0] = r0Right - 0.2;
208 partube[1] = r4Right + 1.0;
209 partube[2] = fThickness/2.0;
210
211 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
212
213// Creation of carbon lids (3.5 mm thick) to keep v0RI box shut...
214
215 Float_t lidThickness = 0.35;
216
217 partube[0] = r0Right;
218 partube[1] = r4Right;
219 partube[2] = +lidThickness/2.0;
220
221 gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3);
222 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
223 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
224
225// Creation of aluminum rings to maintain the v0RI pieces ...
226
227 partube[0] = r0Right - 0.2;
228 partube[1] = r0Right;
229 partube[2] = +fThickness/2.0;
230
231 gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);
232 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
233
234 partube[0] = r4Right;
235 partube[1] = r4Right + 1.0;
236 partube[2] = +fThickness/2.0;
237
238 gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);
239 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
240
241// Mother volume v0R0 in which will be set 4 scintillator cells
242
243 partubs[0] = r0Right;
244 partubs[1] = r4Right;
245 partubs[2] = fThickness/2.0;
246 partubs[3] = 90.0-15.0;
247 partubs[4] = 120.0-15.0;
248
249 gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume
250
251// Elementary cell of ring 1 :
252// (cells of ring 1 will be shifted by 1.7 cm towards vertex to output fibers)
253
254 Float_t offsetFibers = 1.7;
255 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
256 Float_t r1Right = r0Right + height1Right;
257
258 partubs[0] = r0Right;
259 partubs[1] = r1Right;
260 partubs[2] = fThickness1/2.0;
261
262 gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume
263 gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY");
264
265// Elementary cell of ring 2 :
266
267 Float_t r2Right = r1Right + height2Right;
268
269 partubs[0] = r1Right;
270 partubs[1] = r2Right;
271
272 gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume
273 gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
274
275
276// Elementary cell of ring 3 :
277
278 Float_t r3Right = r2Right + height3Right;
279
280 partubs[0] = r2Right;
281 partubs[1] = r3Right;
282
283 gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume
284 gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
285
286// Elementary cell of ring 4 :
287
288 partubs[0] = r3Right;
289 partubs[1] = r4Right;
290
291 gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5); // scintillator volume
292 gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
293
294 Float_t phiDeg = 180./6.;
295
296// Right part :
297
298 for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg)
299 {
300 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
301 gMC->Gspos("V0R0",ndetR,"V0RI",0.0,
302 0.0,0.0,idrotm[902],"ONLY");
303 ndetR++;
304 }
305
306 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY");
307
308 ncellsR = (ndetR - 1) * 4;
309 printf(" Number of cells on Right side = %d\n", ncellsR);
310
311// Left part :
312
313 for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg)
314 {
315 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
316 gMC->Gspos("V0L0",ndetL,"V0LE",0.0,
317 0.0,0.0,idrotm[902],"ONLY");
318 ndetL++;
319 }
320
321 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,350.0+fThickness1/2.0,0,"ONLY");
322
323 ncellsL = (ndetL - 1) * 4;
324 printf(" Number of cells on Left side = %d\n", ncellsL);
325 for(i=0;i<75;i++) printf("*");
326 printf("\n");
327
328}
329
330//_____________________________________________________________________________
331void AliVZEROv4::BuildGeometry()
332{
333
334// Builds simple ROOT TNode geometry for event display
335
336 Int_t i;
337
338 printf("\n");
339 for(i=0;i<30;i++) printf("*");
340 printf(" VZERO BuildGeometry ");
341 for(i=0;i<30;i++) printf("*");
342 printf("\n");
343
344 TNode *top;
345
346 TNode *v0Rnode, *v0Rnode0, *v0Rnode6 , *v0Rnode7, *v0Rnode8, *v0Rnode9;
347 TNode *v0Rnode1, *v0Rnode2, *v0Rnode3, *v0Rnode4;
348 TNode *v0Lnode, *v0Lnode0;
349 TNode *v0Lnode1, *v0Lnode2, *v0Lnode3, *v0Lnode4;
350
351 const int kColorVZERO = kGreen;
352
353 top = gAlice->GetGeometry()->GetNode("alice");
354
355 Float_t height1Right, height2Right, height3Right, height4Right;
356 Float_t heightRight;
357 Float_t theta;
358
359 Float_t halfThickQua;
360 Float_t zdet;
361 Float_t r0Right, r4Right;
362 Float_t pi = TMath::Pi();
363
364 height1Right = 3.42; // height of cell 1, in cm
365 height2Right = 6.78; // height of cell 2, in cm
366 height3Right = 7.11; // height of cell 3, in cm
367 height4Right = 10.91; // height of cell 4, in cm
368
369 theta = pi/6.0/2.0;
370
371 halfThickQua = fThickness1/2.0;
372
373 zdet = 90.0 - 0.6 - fThickness/2.0;
374 r0Right = 4.05;
375 heightRight = height1Right + height2Right + height3Right + height4Right;
376 r4Right = r0Right + heightRight;
377
378 Int_t ndiv = 1;
379
380 Float_t partube[3];
381
382 partube[0] = r0Right - 0.2;
383 partube[1] = r4Right + 1.0;
384 partube[2] = fThickness/2.0;
385
386 TTUBE *v0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
387
388 top->cd();
389
390 v0Rnode = new TNode("V0RI","V0RI",v0RI,0.0,0.0,-zdet,0);
391
392 v0Rnode->SetLineColor(kYellow);
393 fNodes->Add(v0Rnode);
394 v0Rnode->SetVisibility(2);
395
396// Rondelles de carbone (epaisseur 3.5 mm) de maintien des cellules ...
397
398 Float_t lidThickness = 0.35;
399
400 partube[0] = r0Right;
401 partube[1] = r4Right;
402 partube[2] = +lidThickness/2.0;
403
404 TTUBE *v0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
405
406 v0Rnode->cd();
407 v0Rnode6 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0, fThickness/2.0-partube[2],0);
408 v0Rnode6->SetLineColor(kYellow);
409 fNodes->Add(v0Rnode6);
410 v0Rnode->cd();
411 v0Rnode7 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0,-fThickness/2.0+partube[2],0);
412 v0Rnode7->SetLineColor(kYellow);
413 fNodes->Add(v0Rnode7);
414
415 partube[0] = r0Right - 0.2;
416 partube[1] = r0Right;
417 partube[2] = +fThickness/2.0;
418
419 TTUBE *v0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
420
421 v0Rnode->cd();
422 v0Rnode8 = new TNode("V0IR", "V0IR",v0IR,0.0,0.0,0.0,0);
423 v0Rnode8->SetLineColor(kYellow);
424 fNodes->Add(v0Rnode8);
425
426 partube[0] = r4Right;
427 partube[1] = r4Right + 1.0;
428 partube[2] = +fThickness/2.0;
429
430 TTUBE *v0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
431
432 v0Rnode->cd();
433 v0Rnode9 = new TNode("V0ER", "V0ER",v0ER,0.0,0.0,0.0,0);
434 v0Rnode9->SetLineColor(kYellow);
435 fNodes->Add(v0Rnode9);
436
437 Float_t partubs[5];
438
439 partubs[0] = r0Right;
440 partubs[1] = r4Right;
441 partubs[2] = fThickness/2.0;
442 partubs[3] = 90.0-15.0;
443 partubs[4] = 120.0-15.0;
444
445 TTUBS *v0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2],
446 partubs[3], partubs[4]);
447
448 v0R0->SetNumberOfDivisions(ndiv);
449
450 Float_t r1Right = r0Right + height1Right;
451 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
452 Float_t offsetFibers = 1.7;
453
454 partubs[0] = r0Right;
455 partubs[1] = r1Right;
456 partubs[2] = fThickness1/2.0;
457
458 TTUBS *v0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2],
459 partubs[3], partubs[4]);
460
461 v0R1->SetNumberOfDivisions(ndiv);
462
463 Float_t r2Right = r1Right + height2Right;
464
465 partubs[0] = r1Right;
466 partubs[1] = r2Right;
467
468 TTUBS *v0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2],
469 partubs[3], partubs[4]);
470
471 v0R2->SetNumberOfDivisions(ndiv);
472
473 Float_t r3Right = r2Right + height3Right;
474
475 partubs[0] = r2Right;
476 partubs[1] = r3Right;
477
478 TTUBS *v0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2],
479 partubs[3], partubs[4]);
480 v0R3->SetNumberOfDivisions(ndiv);
481
482 partubs[0] = r3Right;
483 partubs[1] = r4Right;
484
485 TTUBS *v0R4 = new TTUBS("V0R4", "V0R4", "void", partubs[0], partubs[1], partubs[2],
486 partubs[3], partubs[4]);
487 v0R4->SetNumberOfDivisions(ndiv);
488
489 Float_t phi;
490 Float_t phiDeg= 180./6.;
491
492 Int_t ndetR = 1;
493
494 char nameNode[12];
495
496 for (phi = 15.0; phi < 360.0; phi = phi + phiDeg)
497
498 {
499 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
500
501 sprintf(nameNode,"SUBDER%d",ndetR);
502
503 v0Rnode->cd();
504 v0Rnode0 = new TNode(nameNode,nameNode,v0R0,0.0,0.0, 0.0,mat920);
505 v0Rnode0->SetLineColor(kYellow);
506 fNodes->Add(v0Rnode0);
507 ndetR++;
508
509 sprintf(nameNode,"SUBDER%d",ndetR);
510 v0Rnode0->cd();
511 v0Rnode1 = new TNode(nameNode,nameNode,v0R1,0.0,0.0, -offset+ offsetFibers ,0);
512 v0Rnode1->SetLineColor(kColorVZERO);
513 fNodes->Add(v0Rnode1);
514 ndetR++;
515
516 sprintf(nameNode,"SUBDER%d",ndetR);
517 v0Rnode0->cd();
518 v0Rnode2 = new TNode(nameNode,nameNode,v0R2,0.0,0.0, -offset,0);
519 v0Rnode2->SetLineColor(kColorVZERO);
520 fNodes->Add(v0Rnode2);
521 ndetR++;
522
523 sprintf(nameNode,"SUBDER%d",ndetR);
524 v0Rnode0->cd();
525 v0Rnode3 = new TNode(nameNode,nameNode,v0R3,0.0,0.0, -offset,0);
526 v0Rnode3->SetLineColor(kColorVZERO);
527 fNodes->Add(v0Rnode3);
528 ndetR++;
529
530 sprintf(nameNode,"SUBDER%d",ndetR);
531 v0Rnode0->cd();
532 v0Rnode4 = new TNode(nameNode,nameNode,v0R4,0.0,0.0, -offset,0);
533 v0Rnode4->SetLineColor(kColorVZERO);
534 fNodes->Add(v0Rnode4);
535 ndetR++;
536
537 v0Rnode0->SetVisibility(2);
538 }
539
540// Left side of VZERO :
541
542 Float_t r0Left = 4.3;
543 Float_t height1Left = 3.6;
544 Float_t height2Left = 6.4;
545 Float_t height3Left = 14.9;
546 Float_t height4Left = 14.4;
547 Float_t heightLeft = height1Left + height2Left + height3Left + height4Left;
548
549 Float_t r4Left = r0Left + heightLeft;
550
551 partube[0] = r0Left;
552 partube[1] = r4Left;
553 partube[2] = fThickness1/2.0;
554
555 TTUBE *v0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
556
557 top->cd();
558
559 v0Lnode = new TNode("V0LE","V0LE",v0LE,0.0,0.0,350.0+fThickness1/2.0,0);
560
561 v0Lnode->SetLineColor(kBlue);
562 fNodes->Add(v0Lnode);
563
564 v0Lnode->SetVisibility(2);
565
566 partubs[0] = r0Left;
567 partubs[1] = r4Left;
568 partubs[2] = fThickness1/2.0;
569 partubs[3] = 90.0-15.0;
570 partubs[4] = 120.0-15.0;
571
572 TTUBS *v0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2],
573 partubs[3], partubs[4]);
574
575 v0L0->SetNumberOfDivisions(ndiv);
576 v0L0->SetLineColor(7);
577
578 Float_t offsetLeft;
579 offsetLeft = - fThickness1/2.0;
580
581 Float_t r1Left = r0Left + height1Left;
582
583 partubs[0] = r0Left;
584 partubs[1] = r1Left;
585
586 TTUBS *v0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2],
587 partubs[3], partubs[4]);
588 v0L1->SetNumberOfDivisions(ndiv);
589
590 Float_t r2Left = r1Left + height2Left;
591
592 partubs[0] = r1Left;
593 partubs[1] = r2Left;
594
595 TTUBS *v0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2],
596 partubs[3], partubs[4]);
597 v0L2->SetNumberOfDivisions(ndiv);
598
599 Float_t r3Left = r2Left + height3Left;
600
601 partubs[0] = r2Left;
602 partubs[1] = r3Left;
603
604 TTUBS *v0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2],
605 partubs[3], partubs[4]);
606 v0L3->SetNumberOfDivisions(ndiv);
607
608 partubs[0] = r3Left;
609 partubs[1] = r4Left;
610
611 TTUBS *v0L4 = new TTUBS("V0L4", "V0L4", "void", partubs[0], partubs[1], partubs[2],
612 partubs[3], partubs[4]);
613 v0L4->SetNumberOfDivisions(ndiv);
614
615 Int_t ndetL = 1;
616
617 for (phi = 15.0; phi < 360.0; phi = phi + phiDeg)
618
619 {
620
621 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
622
623 sprintf(nameNode,"SUBDEL%d",ndetL);
624
625 v0Lnode->cd();
626 v0Lnode0 = new TNode(nameNode,nameNode,v0L0,0.0,0.0, offsetLeft + halfThickQua,mat920);
627 v0Lnode0->SetLineColor(kColorVZERO);
628 fNodes->Add(v0Lnode0);
629 ndetL++;
630
631 sprintf(nameNode,"SUBDEL%d",ndetL);
632 v0Lnode0->cd();
633 v0Lnode1 = new TNode(nameNode,nameNode,v0L1,0.0,0.0, 0.0,0);
634 v0Lnode1->SetLineColor(kColorVZERO);
635 fNodes->Add(v0Lnode1);
636 ndetL++;
637
638 sprintf(nameNode,"SUBDEL%d",ndetL);
639 v0Lnode0->cd();
640 v0Lnode2 = new TNode(nameNode,nameNode,v0L2,0.0,0.0, 0.0,0);
641 v0Lnode2->SetLineColor(kColorVZERO);
642 fNodes->Add(v0Lnode2);
643 ndetL++;
644
645 sprintf(nameNode,"SUBDEL%d",ndetL);
646 v0Lnode0->cd();
647 v0Lnode3 = new TNode(nameNode,nameNode,v0L3,0.0,0.0, 0.0,0);
648 v0Lnode3->SetLineColor(kColorVZERO);
649 fNodes->Add(v0Lnode3);
650 ndetL++;
651
652 sprintf(nameNode,"SUBDEL%d",ndetL);
653 v0Lnode0->cd();
654 v0Lnode4 = new TNode(nameNode,nameNode,v0L4,0.0,0.0, 0.0,0);
655 v0Lnode4->SetLineColor(kColorVZERO);
656 fNodes->Add(v0Lnode4);
657 ndetL++;
658
659 v0Lnode0->SetVisibility(2);
660 }
661}
662
663//_____________________________________________________________________________
664void AliVZEROv4::CreateMaterials()
665{
666
667// Creates materials used for geometry
668
669 Int_t i;
670
671 printf("\n");
672 for(i=0;i<25;i++) printf("*");
673 printf(" VZERO create materials ");
674 for(i=0;i<26;i++) printf("*");
675 printf("\n");
676
677/*
678 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,
679 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
680
681
682 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,
683 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
684
685 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
686 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
687 1.662295, 1.68337 };
688
689 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
690 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
691
692 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
693
694
695 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
696
697
698 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,
699 1e-4,1e-4,1e-4,1e-4 };
700 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
701
702*/
703
704 Int_t *idtmed = fIdtmed->GetArray()-2999;
705
79b41939 706
707// Parameters related to Quarz (SiO2) :
708
709 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
710 Int_t nlmatqua;
711
712 aqua[0] = 28.09;
713 aqua[1] = 16.;
714 zqua[0] = 14.;
715 zqua[1] = 8.;
716 densqua = 2.64;
717 nlmatqua = -2;
718 wmatqua[0] = 1.;
719 wmatqua[1] = 2.;
720
721// Parameters related to aluminum sheets :
722
723 Float_t aal = 26.98;
724 Float_t zal = 13.00;
725 Float_t densal= 2.7;
726 Float_t radlal= 8.9;
727
728// Parameters related to scintillator CH :
729
730 Float_t ascin[2] = {1.00794,12.011};
731 Float_t zscin[2] = {1.,6.};
732 Float_t wscin[2] = {1.,1.};
733 Float_t denscin = 1.032;
734
f7b3a79e 735// AIR
736
737 Float_t aAir[4]={12.,14.,16.,36.};
738 Float_t zAir[4]={6.,7.,8.,18.};
739 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
740 Float_t dAir = 1.20479E-3;
741
79b41939 742// Definition of materials :
f7b3a79e 743
744// AIR
745
746 AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir);
747 AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir);
79b41939 748 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
749 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
750 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
751 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
752
753 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
754
755
756 Int_t iSXFLD = gAlice->Field()->Integ();
757 Float_t sXMGMX = gAlice->Field()->Max();
758
759 Float_t tmaxfd, stemax, deemax, epsil, stmin;
760
761 tmaxfd = 10.;
762 stemax = 0.1;
763 deemax = 0.1;
764 epsil = 0.001;
765 stmin = 0.001;
766
767// Active Air :
768 AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX,
769 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
770
771// Inactive air :
772
773 AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX,
774 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
775
776 AliMedium(2, "CARBON$ ", 2, 1, iSXFLD, sXMGMX,
777 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
778
779 AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX,
780 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
781
782 AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX,
783 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
784
785
786 AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX,
787 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
788
789 AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
790
791 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
792 gMC->Gstpar(idtmed[3000], "HADR", 1.);
793 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
794 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
795
796 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
797 gMC->Gstpar(idtmed[3001], "HADR", 1.);
798 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
799 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
800
801 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
802 gMC->Gstpar(idtmed[3002], "HADR", 1.);
803 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
804 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
805 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
806 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
807
808 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
809 gMC->Gstpar(idtmed[3003], "HADR", 1.);
810 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
811 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
812
813 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
814 gMC->Gstpar(idtmed[3004], "HADR", 1.);
815 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
816 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
817 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
818 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
819
820 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
821 gMC->Gstpar(idtmed[3005], "HADR", 1.);
822 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
823 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
824 gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ;
825 gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
826
827
828// geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
829// geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
830
831// gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
832// gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
833
834}
835
836//_____________________________________________________________________________
837void AliVZEROv4::DrawModule()
838{
839
840// Drawing is done in DrawVZERO.C
841
842 Int_t i;
843
844 printf("\n");
845 for(i=0;i<30;i++) printf("*");
846 printf(" VZERO DrawModule ");
847 for(i=0;i<30;i++) printf("*");
848 printf("\n");
849}
850
851//_____________________________________________________________________________
852void AliVZEROv4::Init()
853{
854// Initialises version 2 of the VZERO Detector
855// Just prints an information message
856
857 printf(" VZERO version %d initialized \n",IsVersion());
858
859// gMC->SetMaxStep(fMaxStepAlu);
860// gMC->SetMaxStep(fMaxStepQua);
861
862 AliVZERO::Init();
863}
864
865//_____________________________________________________________________________
866void AliVZEROv4::StepManager()
867{
868
869// Step Manager, called at each step
870
871 Int_t copy;
872 static Int_t vol[4];
873 static Float_t hits[21];
874 static Float_t eloss, tlength;
875 static Int_t nPhotonsInStep;
876 static Int_t nPhotons;
877 static Int_t numStep;
878 Float_t ringNumber;
879 Float_t destep, step;
880
881 numStep += 1;
882
883// We keep only charged tracks :
884
885 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
886
887 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
888 vol[2] = gMC->CurrentVolID(copy);
889 vol[3] = copy;
890
d6fb41ac 891 static Int_t idV0R1 = gMC->VolId("V0R1");
892 static Int_t idV0L1 = gMC->VolId("V0L1");
893 static Int_t idV0R2 = gMC->VolId("V0R2");
894 static Int_t idV0L2 = gMC->VolId("V0L2");
895 static Int_t idV0R3 = gMC->VolId("V0R3");
896 static Int_t idV0L3 = gMC->VolId("V0L3");
897 static Int_t idV0R4 = gMC->VolId("V0R4");
898 static Int_t idV0L4 = gMC->VolId("V0L4");
899
900 if ( gMC->CurrentVolID(copy) == idV0R1 ||
901 gMC->CurrentVolID(copy) == idV0L1 )
79b41939 902 ringNumber = 1.0;
d6fb41ac 903 else if ( gMC->CurrentVolID(copy) == idV0R2 ||
904 gMC->CurrentVolID(copy) == idV0L2 )
79b41939 905 ringNumber = 2.0;
d6fb41ac 906 else if ( gMC->CurrentVolID(copy) == idV0R3 ||
907 gMC->CurrentVolID(copy) == idV0L3 )
79b41939 908 ringNumber = 3.0;
d6fb41ac 909 else if ( gMC->CurrentVolID(copy) == idV0R4 ||
910 gMC->CurrentVolID(copy) == idV0L4 )
79b41939 911 ringNumber = 4.0;
912 else
913 ringNumber = 0.0;
914
915 if ( ringNumber > 0.5 ) {
916
917 destep = gMC->Edep();
918 step = gMC->TrackStep();
919
920 nPhotonsInStep = Int_t(destep / (fLightYield *1e-9) );
921 nPhotonsInStep = gRandom->Poisson(nPhotonsInStep);
922
923 eloss += destep;
924 tlength += step;
925
926 if ( gMC->IsTrackEntering() ) {
927
928 nPhotons = nPhotonsInStep;
929 gMC->TrackPosition(fTrackPosition);
930 gMC->TrackMomentum(fTrackMomentum);
931
932 Float_t pt = TMath::Sqrt( fTrackMomentum.Px() * fTrackMomentum.Px() +
933 fTrackMomentum.Py() * fTrackMomentum.Py() );
934
935 hits[0] = fTrackPosition.X();
936 hits[1] = fTrackPosition.Y();
937 hits[2] = fTrackPosition.Z();
938 hits[3] = Float_t (gMC->TrackPid());
939
940 hits[4] = gMC->TrackTime();
941 hits[5] = gMC->TrackCharge();
942 hits[6] = fTrackMomentum.Theta()*TMath::RadToDeg();
943 hits[7] = fTrackMomentum.Phi()*TMath::RadToDeg();
944 hits[8] = ringNumber;
945
946 hits[9] = pt;
947 hits[10] = fTrackMomentum.P();
948 hits[11] = fTrackMomentum.Px();
949 hits[12] = fTrackMomentum.Py();
950 hits[13] = fTrackMomentum.Pz();
951
952 TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber());
953 hits[14] = par->Vx();
954 hits[15] = par->Vy();
955 hits[16] = par->Vz();
956
957 tlength = 0.0;
958 eloss = 0.0;
959 }
960
961 nPhotons = nPhotons + nPhotonsInStep;
962
963 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
964
965 nPhotons = nPhotons - Int_t((Float_t(nPhotons) * fLightAttenuation * fnMeters));
966 nPhotons = nPhotons - Int_t( Float_t(nPhotons) * fFibToPhot);
967
968 hits[17] = eloss;
969 hits[18] = tlength;
970 hits[19] = nPhotons;
971 hits[20] = GetCellId (vol, hits);
972
973 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
974
975 tlength = 0.0;
976 eloss = 0.0;
977 nPhotons = 0;
978 nPhotonsInStep = 0;
979
980 numStep = 0;
981 }
982 }
983
984}
985
986//_____________________________________________________________________________
987void AliVZEROv4::AddHit(Int_t track, Int_t *vol, Float_t *hits)
988{
989
990// Adds a VZERO hit
991
992 TClonesArray &lhits = *fHits;
993 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
994}
995
996//_____________________________________________________________________________
997void AliVZEROv4::AddDigits(Int_t *tracks, Int_t* digits)
998{
999
1000// Adds a VZERO digit
1001
1002 TClonesArray &ldigits = *fDigits;
1003 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1004}
1005
1006//_____________________________________________________________________________
1007void AliVZEROv4::MakeBranch(Option_t *option)
1008{
1009
1010// Creates new branches in the current Root Tree
1011
1012 char branchname[10];
1013 sprintf(branchname,"%s",GetName());
1014 printf(" fBufferSize = %d \n",fBufferSize);
1015
1016 const char *cH = strstr(option,"H");
1017
1018 if (fHits && TreeH() && cH) {
1019 TreeH()->Branch(branchname,&fHits, fBufferSize);
1020 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1021 }
1022
1023 const char *cD = strstr(option,"D");
1024
1025 if (fDigits && fLoader->TreeD() && cD) {
1026 fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1027 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
1028 }
1029
1030}
1031
1032//_____________________________________________________________________________
1033Int_t AliVZEROv4::GetCellId(Int_t *vol, Float_t *hits)
1034{
1035
1036 // Returns Id of scintillator cell
1037 // Right side from 0 to 47
1038 // Left side from 48 to 95
1039
1040 Int_t index = vol[1];
1041 fCellId = 0;
1042
1043 if (index < 10) index = index + 12;
1044
1045 if (hits[2] < 0.0) {
1046 index = (index - 10) + ( ( Int_t(hits[8]) - 1 ) * 12);
1047 fCellId = index;
1048 }
1049 else if (hits[2] > 0.0)
1050 {
1051 index = (index + 38) + ( ( Int_t(hits[8]) - 1 ) * 12);
1052 fCellId = index;}
1053
1054 return fCellId;
1055}