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[u/mrichter/AliRoot.git] / VZERO / AliVZEROv5.cxx
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f4f76f65 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 5 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 16 th of june 2004 //
24// (now 8 sectors instead of 12 sectors as in previous version) //
25// V0R (now V0C) sits between Z values -89.6 and -84.9 cm //
26// V0L (now V0A) sits between Z values +339.0 and +341.0 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>
f4f76f65 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 "AliVZEROv5.h"
254ef8f1 57#include "AliLog.h"
f4f76f65 58
59ClassImp(AliVZEROv5)
60
61//_____________________________________________________________________________
62AliVZEROv5:: AliVZEROv5():AliVZERO()
63{
64// Standard default constructor
65}
66
67//_____________________________________________________________________________
68AliVZEROv5::AliVZEROv5(const char *name, const char *title):
69 AliVZERO(name,title)
70{
71
72// Standard constructor for V-zero Detector version 5
73
254ef8f1 74 AliDebug(2,"Create VZERO object ");
f4f76f65 75
76 fLightYield = 93.75; // Light yield in BC408 (93.75 eV per photon)
77 fLightAttenuation = 0.05; // Light attenuation in fiber (0.05 per meter)
78 fnMeters = 15.0; // Number of meters of clear fibers to PM
79 fFibToPhot = 0.3; // Attenuation at fiber-photocathode interface
80}
81
82//_____________________________________________________________________________
83void AliVZEROv5::CreateGeometry()
84{
85
86// Creates the GEANT geometry of the V-zero Detector version 5
87
254ef8f1 88 AliDebug(2,"Create Geometry ");
f4f76f65 89
90 Int_t *idtmed = fIdtmed->GetArray()-2999;
91
92 Int_t ndetR = 1;
93 Int_t ndetL = 1;
94
95 Int_t ncellsR = 1;
96 Int_t ncellsL = 1;
97
98 Int_t idrotm[999];
99
100 Float_t height1Right, height2Right, height3Right, height4Right;
101 Float_t heightRight;
102 Float_t theta;
103
104 Float_t halfThickQua;
105
106 Float_t zdet;
107 Float_t r0Right, r4Right, rBoxRight;
108 Float_t pi = TMath::Pi();
109
110 height1Right = 2.6; // height of cell 1, in cm
111 height2Right = 4.6; // height of cell 2, in cm
112 height3Right = 7.6; // height of cell 3, in cm
113 height4Right = 12.7; // height of cell 4, in cm
114
115 theta = pi/4.0/2.0; // half angular opening = 22.5 degrees
116
117 halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring)
118
119// distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from
120// absorber nose sitting at 90 cm. Will use -zdet later...
121// size of V0R box (fThickness) is increased by 3 mm as compared to basic version
122
123 fThickness = fThickness + 0.3; // now 4.7 cm instead of 4.4 cm
124 zdet = 90.0 - 0.6 - fThickness/2.0; // distance to vertex (along Z axis)
125 r0Right = 4.20; // closest distance to center of the beam pipe
126 heightRight = height1Right + height2Right + height3Right + height4Right;
127 r4Right = r0Right + heightRight + 0.3;
128 rBoxRight = 38.0; // external radius of right box
129
130// Creation of mother volume v0LE - left part - :
131// Entrance face at +339.0 cm (new coordinate system) ...
132
133 Float_t partube[3];
134
135 partube[0] = 4.3;
136 partube[1] = 44.0;
137 partube[2] = fThickness1/2.0;
138
139 gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
140
141// Creation of five rings - left part - :
142// Entrance face at +339.0 cm (new coordinate system) ...
143
144// Mother volume v0L0 in which will be set 5 scintillator cells
145
146 Float_t partubs[5];
147
148 Float_t r0Left = 4.3;
149 Float_t height1Left = 3.3;
150 Float_t height2Left = 6.2;
151 Float_t height3Left = 8.9;
152 Float_t height4Left = 20.9;
153 Float_t heightLeft = height1Left + height2Left + height3Left + height4Left;
154
155 Float_t r4Left = r0Left + heightLeft;
156
157 partubs[0] = r0Left;
158 partubs[1] = r4Left;
159 partubs[2] = fThickness1/2.0;
160 partubs[3] = 90.0-22.5;
161 partubs[4] = 135.0-22.5;
162
163 gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume
164
165 Float_t r1Left = r0Left + height1Left;
166
167 partubs[0] = r0Left;
168 partubs[1] = r1Left;
169
170 gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume
171 gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
172
173 Float_t r2Left = r1Left + height2Left;
174
175 partubs[0] = r1Left;
176 partubs[1] = r2Left;
177
178 gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume
179 gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
180
181 Float_t r3Left = r2Left + height3Left;
182
183 partubs[0] = r2Left;
184 partubs[1] = r3Left;
185
186 gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5); // quartz volume
187 gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
188
189 partubs[0] = r3Left;
190 partubs[1] = r4Left;
191
192 gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5); // quartz volume
193 gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
194
195// Creation of mother volume v0RI - right part - :
196
197 partube[0] = r0Right - 0.2;
198 partube[1] = r4Right + 1.0;
199 partube[2] = fThickness/2.0;
200
201 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
202
203// Creation of carbon lids (3.0 mm thick) to keep v0RI box shut...
204
205 Float_t lidThickness = 0.30;
206
207 partube[0] = r0Right;
208 partube[1] = rBoxRight;
209 partube[2] = +lidThickness/2.0;
210
211 gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3);
212 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
213 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
214
215// Creation of aluminum rings 3.0 mm thick to maintain the v0RI pieces ...
216
217 partube[0] = r0Right;
218 partube[1] = r0Right + 0.3;
219 partube[2] = +fThickness/2.0;
220
221 gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);
222 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
223
224 partube[0] = rBoxRight - 0.3;
225 partube[1] = rBoxRight;
226 partube[2] = +fThickness/2.0;
227
228 gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);
229 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
230
231// Mother volume v0R0 in which will be set 6 scintillator cells
232
233 partubs[0] = r0Right;
234 partubs[1] = r4Right;
235 partubs[2] = fThickness/2.0;
236 partubs[3] = 90.0-22.5;
237 partubs[4] = 135.0-22.5;
238
239 gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume
240
241// Elementary cell of ring 1 :
242// (cells of ring 1 will be shifted by 2.0 cm backwards to output fibers)
243
244 Float_t offsetFibers = 1.0;
245 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
246 Float_t r1Right = r0Right + 0.3 + height1Right;
247
248 partubs[0] = r0Right + 0.3;
249 partubs[1] = r1Right;
250 partubs[2] = fThickness1/2.0;
251
252 gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume
253 gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
254
255// Elementary cell of ring 2 :
256// (cells of ring 2 will be shifted by 1.0 cm backwards to output fibers)
257
258 Float_t r2Right = r1Right + height2Right;
259
260 partubs[0] = r1Right;
261 partubs[1] = r2Right;
262
263 gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume
264 gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY");
265
266// Elementary cell of ring 3 :
267
268 Float_t r3Right = r2Right + height3Right;
269
270 partubs[0] = r2Right;
271 partubs[1] = r3Right;
272 partubs[3] = 90.0-22.5;
273 partubs[4] = 112.5-22.5;
274
275 gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume
276 gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
277
278 partubs[3] = 112.5-22.5;
279 partubs[4] = 135.0-22.5;
280 gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5); // scintillator volume
281 gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
282
283// Elementary cell of ring 4 :
284
285 partubs[0] = r3Right;
286 partubs[1] = r4Right;
287 partubs[3] = 90.0-22.5;
288 partubs[4] = 112.5-22.5;
289
290 gMC->Gsvolu("V0R5","TUBS",idtmed[3005],partubs,5); // scintillator volume
291 gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
292
293 partubs[3] = 112.5-22.5;
294 partubs[4] = 135.0-22.5;
295 gMC->Gsvolu("V0R6","TUBS",idtmed[3005],partubs,5); // scintillator volume
296 gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
297
298 Float_t phiDeg = 180./4.;
299
300// Right part :
301
302 for(Float_t phi = 22.5; phi < 360.0; phi = phi + phiDeg)
303 {
304 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
305 gMC->Gspos("V0R0",ndetR,"V0RI",0.0,
306 0.0,0.0,idrotm[902],"ONLY");
307 ndetR++;
308 }
309
310 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY");
311
312 ncellsR = (ndetR - 1) * 6;
254ef8f1 313 AliInfo(Form("Number of cells on Right side = %d\n", ncellsR));
f4f76f65 314
315// Left part :
316
317 for(Float_t phi = 22.5; phi < 360.0; phi = phi + phiDeg)
318 {
319 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
320 gMC->Gspos("V0L0",ndetL,"V0LE",0.0,
321 0.0,0.0,idrotm[902],"ONLY");
322 ndetL++;
323 }
324
325 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,339.0+fThickness1/2.0,0,"ONLY");
326
327 ncellsL = (ndetL - 1) * 4;
254ef8f1 328 AliInfo(Form("Number of cells on Left side = %d\n", ncellsL));
f4f76f65 329
330}
331
332//_____________________________________________________________________________
333void AliVZEROv5::BuildGeometry()
334{
335
336// Builds simple ROOT TNode geometry for event display
337
254ef8f1 338 AliDebug(2,"VZERO BuildGeometry");
f4f76f65 339
340 TNode *top;
341
342 TNode *v0Rnode, *v0Rnode0, *v0Rnode7, *v0Rnode8, *v0Rnode9, *v0Rnode10;
343 TNode *v0Rnode1, *v0Rnode2, *v0Rnode3, *v0Rnode4, *v0Rnode5, *v0Rnode6;
344 TNode *v0Lnode, *v0Lnode0;
345 TNode *v0Lnode1, *v0Lnode2, *v0Lnode3, *v0Lnode4;
346
347 const int kColorVZERO = kGreen;
348
349 top = gAlice->GetGeometry()->GetNode("alice");
350
351 Float_t height1Right, height2Right, height3Right, height4Right;
352 Float_t heightRight;
353 Float_t theta;
354
355 Float_t halfThickQua;
356 Float_t zdet;
357 Float_t r0Right, r4Right, rBoxRight;
358 Float_t pi = TMath::Pi();
359
360 height1Right = 2.6; // height of cell 1, in cm
361 height2Right = 4.6; // height of cell 2, in cm
362 height3Right = 7.6; // height of cell 3, in cm
363 height4Right = 12.7; // height of cell 4, in cm
364
365 theta = pi/4.0/2.0;
366
367 halfThickQua = fThickness1/2.0;
368
369 zdet = 90.0 - 0.6 - fThickness/2.0;
370 r0Right = 4.20;
371 heightRight = height1Right + height2Right + height3Right + height4Right;
372 r4Right = r0Right + heightRight + 0.3;
373 rBoxRight = 38.0;
374
375 Int_t ndiv = 1;
376
377 Float_t partube[3];
378
379 partube[0] = r0Right - 0.2;
380 partube[1] = r4Right + 1.0;
381 partube[2] = fThickness/2.0;
382
383 TTUBE *v0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
384
385 top->cd();
386
387 v0Rnode = new TNode("V0RI","V0RI",v0RI,0.0,0.0,-zdet,0);
388
389 v0Rnode->SetLineColor(kYellow);
390 fNodes->Add(v0Rnode);
391 v0Rnode->SetVisibility(2);
392
393// Rondelles de carbone (epaisseur 3.0 mm) de maintien des cellules ...
394
395 Float_t lidThickness = 0.30;
396
397 partube[0] = r0Right;
398 partube[1] = rBoxRight;
399 partube[2] = +lidThickness/2.0;
400
401 TTUBE *v0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
402
403 v0Rnode->cd();
404 v0Rnode7 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0, fThickness/2.0-partube[2],0);
405 v0Rnode7->SetLineColor(kYellow);
406 fNodes->Add(v0Rnode7);
407 v0Rnode->cd();
408 v0Rnode8 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0,-fThickness/2.0+partube[2],0);
409 v0Rnode8->SetLineColor(kYellow);
410 fNodes->Add(v0Rnode8);
411
412 partube[0] = r0Right;
413 partube[1] = r0Right + 0.3;
414 partube[2] = +fThickness/2.0;
415
416 TTUBE *v0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
417
418 v0Rnode->cd();
419 v0Rnode9 = new TNode("V0IR", "V0IR",v0IR,0.0,0.0,0.0,0);
420 v0Rnode9->SetLineColor(kYellow);
421 fNodes->Add(v0Rnode9);
422
423 partube[0] = rBoxRight - 0.3;
424 partube[1] = rBoxRight;
425 partube[2] = +fThickness/2.0;
426
427 TTUBE *v0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
428
429 v0Rnode->cd();
430 v0Rnode10 = new TNode("V0ER", "V0ER",v0ER,0.0,0.0,0.0,0);
431 v0Rnode10->SetLineColor(kYellow);
432 fNodes->Add(v0Rnode10);
433
434 Float_t partubs[5];
435
436 partubs[0] = r0Right;
437 partubs[1] = r4Right;
438 partubs[2] = fThickness/2.0;
439 partubs[3] = 90.0-22.5;
440 partubs[4] = 135.0-22.5;
441
442 TTUBS *v0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2],
443 partubs[3], partubs[4]);
444
445 v0R0->SetNumberOfDivisions(ndiv);
446
447 Float_t r1Right = r0Right + 0.3 + height1Right;
448 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
449 Float_t offsetFibers = 1.0;
450
451 partubs[0] = r0Right + 0.3;
452 partubs[1] = r1Right;
453 partubs[2] = fThickness1/2.0;
454
455 TTUBS *v0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2],
456 partubs[3], partubs[4]);
457
458 v0R1->SetNumberOfDivisions(ndiv);
459
460 Float_t r2Right = r1Right + height2Right;
461
462 partubs[0] = r1Right;
463 partubs[1] = r2Right;
464
465 TTUBS *v0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2],
466 partubs[3], partubs[4]);
467
468 v0R2->SetNumberOfDivisions(ndiv);
469
470// Ring 3 :
471
472 Float_t r3Right = r2Right + height3Right;
473
474 partubs[0] = r2Right;
475 partubs[1] = r3Right;
476 partubs[3] = 90.0-22.5;
477 partubs[4] = 112.5-22.5;
478
479 TTUBS *v0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2],
480 partubs[3], partubs[4]);
481 v0R3->SetNumberOfDivisions(ndiv);
482
483 partubs[3] = 112.5-22.5;
484 partubs[4] = 135.0-22.5;
485
486 TTUBS *v0R4 = new TTUBS("V0R4", "V0R4", "void", partubs[0], partubs[1], partubs[2],
487 partubs[3], partubs[4]);
488 v0R4->SetNumberOfDivisions(ndiv);
489
490// Ring 4 :
491
492 partubs[0] = r3Right;
493 partubs[1] = r4Right;
494 partubs[3] = 90.0-22.5;
495 partubs[4] = 112.5-22.5;
496
497 TTUBS *v0R5 = new TTUBS("V0R5", "V0R5", "void", partubs[0], partubs[1], partubs[2],
498 partubs[3], partubs[4]);
499 v0R5->SetNumberOfDivisions(ndiv);
500
501 partubs[3] = 112.5-22.5;
502 partubs[4] = 135.0-22.5;
503
504 TTUBS *v0R6 = new TTUBS("V0R6", "V0R6", "void", partubs[0], partubs[1], partubs[2],
505 partubs[3], partubs[4]);
506 v0R6->SetNumberOfDivisions(ndiv);
507
508 Float_t phi;
509 Float_t phiDeg= 180./4.;
510
511 Int_t ndetR = 1;
512
513 char nameNode[12];
514
515 for (phi = 22.5; phi < 360.0; phi = phi + phiDeg)
516
517 {
518 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
519
520 sprintf(nameNode,"SUBDER%d",ndetR);
521
522 v0Rnode->cd();
523 v0Rnode0 = new TNode(nameNode,nameNode,v0R0,0.0,0.0, 0.0,mat920);
524 v0Rnode0->SetLineColor(kYellow);
525 fNodes->Add(v0Rnode0);
526 ndetR++;
527
528 sprintf(nameNode,"SUBDER%d",ndetR);
529 v0Rnode0->cd();
530 v0Rnode1 = new TNode(nameNode,nameNode,v0R1,0.0,0.0, -offset ,0);
531 v0Rnode1->SetLineColor(kColorVZERO);
532 fNodes->Add(v0Rnode1);
533 ndetR++;
534
535 sprintf(nameNode,"SUBDER%d",ndetR);
536 v0Rnode0->cd();
537 v0Rnode2 = new TNode(nameNode,nameNode,v0R2,0.0,0.0, -offset + offsetFibers,0);
538 v0Rnode2->SetLineColor(kColorVZERO);
539 fNodes->Add(v0Rnode2);
540 ndetR++;
541
542 sprintf(nameNode,"SUBDER%d",ndetR);
543 v0Rnode0->cd();
544 v0Rnode3 = new TNode(nameNode,nameNode,v0R3,0.0,0.0, -offset + 2.0*offsetFibers,0);
545 v0Rnode3->SetLineColor(kColorVZERO);
546 fNodes->Add(v0Rnode3);
547 ndetR++;
548
549 sprintf(nameNode,"SUBDER%d",ndetR);
550 v0Rnode0->cd();
551 v0Rnode4 = new TNode(nameNode,nameNode,v0R4,0.0,0.0, -offset + 2.0*offsetFibers,0);
552 v0Rnode4->SetLineColor(kColorVZERO);
553 fNodes->Add(v0Rnode4);
554 ndetR++;
555
556 sprintf(nameNode,"SUBDER%d",ndetR);
557 v0Rnode0->cd();
558 v0Rnode5 = new TNode(nameNode,nameNode,v0R5,0.0,0.0, -offset + 2.0*offsetFibers,0);
559 v0Rnode5->SetLineColor(kColorVZERO);
560 fNodes->Add(v0Rnode5);
561 ndetR++;
562
563 sprintf(nameNode,"SUBDER%d",ndetR);
564 v0Rnode0->cd();
565 v0Rnode6 = new TNode(nameNode,nameNode,v0R6,0.0,0.0, -offset + 2.0*offsetFibers,0);
566 v0Rnode6->SetLineColor(kColorVZERO);
567 fNodes->Add(v0Rnode6);
568 ndetR++;
569
570 v0Rnode0->SetVisibility(2);
571 }
572
573// Left side of VZERO :
574
575 Float_t r0Left = 4.3;
576 Float_t height1Left = 3.3;
577 Float_t height2Left = 6.2;
578 Float_t height3Left = 8.9;
579 Float_t height4Left = 20.9;
580 Float_t heightLeft = height1Left + height2Left + height3Left + height4Left;
581
582 Float_t r4Left = r0Left + heightLeft;
583
584 partube[0] = r0Left;
585 partube[1] = r4Left;
586 partube[2] = fThickness1/2.0;
587
588 TTUBE *v0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
589
590 top->cd();
591
592 v0Lnode = new TNode("V0LE","V0LE",v0LE,0.0,0.0,339.0+fThickness1/2.0,0);
593
594 v0Lnode->SetLineColor(kBlue);
595 fNodes->Add(v0Lnode);
596
597 v0Lnode->SetVisibility(2);
598
599 partubs[0] = r0Left;
600 partubs[1] = r4Left;
601 partubs[2] = fThickness1/2.0;
602 partubs[3] = 90.0-22.5;
603 partubs[4] = 135.0-22.5;
604
605 TTUBS *v0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2],
606 partubs[3], partubs[4]);
607
608 v0L0->SetNumberOfDivisions(ndiv);
609 v0L0->SetLineColor(7);
610
611 Float_t offsetLeft;
612 offsetLeft = - fThickness1/2.0;
613
614 Float_t r1Left = r0Left + height1Left;
615
616 partubs[0] = r0Left;
617 partubs[1] = r1Left;
618
619 TTUBS *v0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2],
620 partubs[3], partubs[4]);
621 v0L1->SetNumberOfDivisions(ndiv);
622
623 Float_t r2Left = r1Left + height2Left;
624
625 partubs[0] = r1Left;
626 partubs[1] = r2Left;
627
628 TTUBS *v0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2],
629 partubs[3], partubs[4]);
630 v0L2->SetNumberOfDivisions(ndiv);
631
632 Float_t r3Left = r2Left + height3Left;
633
634 partubs[0] = r2Left;
635 partubs[1] = r3Left;
636
637 TTUBS *v0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2],
638 partubs[3], partubs[4]);
639 v0L3->SetNumberOfDivisions(ndiv);
640
641 partubs[0] = r3Left;
642 partubs[1] = r4Left;
643
644 TTUBS *v0L4 = new TTUBS("V0L4", "V0L4", "void", partubs[0], partubs[1], partubs[2],
645 partubs[3], partubs[4]);
646 v0L4->SetNumberOfDivisions(ndiv);
647
648 Int_t ndetL = 1;
649
650 for (phi = 22.5; phi < 360.0; phi = phi + phiDeg)
651
652 {
653
654 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
655
656 sprintf(nameNode,"SUBDEL%d",ndetL);
657
658 v0Lnode->cd();
659 v0Lnode0 = new TNode(nameNode,nameNode,v0L0,0.0,0.0, offsetLeft + halfThickQua,mat920);
660 v0Lnode0->SetLineColor(kColorVZERO);
661 fNodes->Add(v0Lnode0);
662 ndetL++;
663
664 sprintf(nameNode,"SUBDEL%d",ndetL);
665 v0Lnode0->cd();
666 v0Lnode1 = new TNode(nameNode,nameNode,v0L1,0.0,0.0, 0.0,0);
667 v0Lnode1->SetLineColor(kColorVZERO);
668 fNodes->Add(v0Lnode1);
669 ndetL++;
670
671 sprintf(nameNode,"SUBDEL%d",ndetL);
672 v0Lnode0->cd();
673 v0Lnode2 = new TNode(nameNode,nameNode,v0L2,0.0,0.0, 0.0,0);
674 v0Lnode2->SetLineColor(kColorVZERO);
675 fNodes->Add(v0Lnode2);
676 ndetL++;
677
678 sprintf(nameNode,"SUBDEL%d",ndetL);
679 v0Lnode0->cd();
680 v0Lnode3 = new TNode(nameNode,nameNode,v0L3,0.0,0.0, 0.0,0);
681 v0Lnode3->SetLineColor(kColorVZERO);
682 fNodes->Add(v0Lnode3);
683 ndetL++;
684
685 sprintf(nameNode,"SUBDEL%d",ndetL);
686 v0Lnode0->cd();
687 v0Lnode4 = new TNode(nameNode,nameNode,v0L4,0.0,0.0, 0.0,0);
688 v0Lnode4->SetLineColor(kColorVZERO);
689 fNodes->Add(v0Lnode4);
690 ndetL++;
691
692 v0Lnode0->SetVisibility(2);
693 }
694}
695
696//_____________________________________________________________________________
697void AliVZEROv5::CreateMaterials()
698{
699
700// Creates materials used for geometry
701
254ef8f1 702 AliDebug(2,"Create materials");
f4f76f65 703
704/*
705 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,
706 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
707
708
709 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,
710 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
711
712 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
713 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
714 1.662295, 1.68337 };
715
716 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
717 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
718
719 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
720
721
722 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
723
724
725 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,
726 1e-4,1e-4,1e-4,1e-4 };
727 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
728
729*/
730
731 Int_t *idtmed = fIdtmed->GetArray()-2999;
732
f4f76f65 733
734// Parameters related to Quarz (SiO2) :
735
736 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
737 Int_t nlmatqua;
738
739 aqua[0] = 28.09;
740 aqua[1] = 16.;
741 zqua[0] = 14.;
742 zqua[1] = 8.;
743 densqua = 2.64;
744 nlmatqua = -2;
745 wmatqua[0] = 1.;
746 wmatqua[1] = 2.;
747
748// Parameters related to aluminum sheets :
749
750 Float_t aal = 26.98;
751 Float_t zal = 13.00;
752 Float_t densal= 2.7;
753 Float_t radlal= 8.9;
754
755// Parameters related to scintillator CH :
756
757 Float_t ascin[2] = {1.00794,12.011};
758 Float_t zscin[2] = {1.,6.};
759 Float_t wscin[2] = {1.,1.};
760 Float_t denscin = 1.032;
761
b84cd1d5 762// AIR
763
764 Float_t aAir[4]={12.,14.,16.,36.};
765 Float_t zAir[4]={6.,7.,8.,18.};
766 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
767 Float_t dAir = 1.20479E-3;
768
f4f76f65 769// Definition of materials :
770
b84cd1d5 771 AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir);
772 AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir);
f4f76f65 773 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
774 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
775 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
776 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
777
778 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
779
780
781 Int_t iSXFLD = gAlice->Field()->Integ();
782 Float_t sXMGMX = gAlice->Field()->Max();
783
784 Float_t tmaxfd, stemax, deemax, epsil, stmin;
785
786 tmaxfd = 10.;
787 stemax = 0.1;
788 deemax = 0.1;
789 epsil = 0.001;
790 stmin = 0.001;
791
792// Active Air :
793 AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX,
794 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
795
796// Inactive air :
797
798 AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX,
799 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
800
801 AliMedium(2, "CARBON$ ", 2, 1, iSXFLD, sXMGMX,
802 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
803
804 AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX,
805 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
806
807 AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX,
808 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
809
810
811 AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX,
812 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
813
814 AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
815
816 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
817 gMC->Gstpar(idtmed[3000], "HADR", 1.);
818 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
819 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
820
821 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
822 gMC->Gstpar(idtmed[3001], "HADR", 1.);
823 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
824 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
825
826 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
827 gMC->Gstpar(idtmed[3002], "HADR", 1.);
828 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
829 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
830 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
831 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
832
833 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
834 gMC->Gstpar(idtmed[3003], "HADR", 1.);
835 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
836 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
837
838 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
839 gMC->Gstpar(idtmed[3004], "HADR", 1.);
840 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
841 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
842 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
843 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
844
845 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
846 gMC->Gstpar(idtmed[3005], "HADR", 1.);
847 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
848 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
849 gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ;
850 gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
851
852
853// geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
854// geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
855
856// gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
857// gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
858
859}
860
861//_____________________________________________________________________________
ba380e33 862void AliVZEROv5::DrawModule() const
f4f76f65 863{
864
865// Drawing is done in DrawVZERO.C
866
254ef8f1 867 AliDebug(2,"DrawModule");
f4f76f65 868}
869
870//_____________________________________________________________________________
871void AliVZEROv5::Init()
872{
873// Initialises version 2 of the VZERO Detector
874// Just prints an information message
875
254ef8f1 876 AliInfo(Form("VZERO version %d initialized \n",IsVersion()));
f4f76f65 877
878// gMC->SetMaxStep(fMaxStepAlu);
879// gMC->SetMaxStep(fMaxStepQua);
880
881 AliVZERO::Init();
882}
883
884//_____________________________________________________________________________
885void AliVZEROv5::StepManager()
886{
887
888// Step Manager, called at each step
889
890 Int_t copy;
891 static Int_t vol[4];
892 static Float_t hits[21];
893 static Float_t eloss, tlength;
894 static Int_t nPhotonsInStep;
895 static Int_t nPhotons;
896 static Int_t numStep;
897 Float_t ringNumber;
898 Float_t destep, step;
899
900 numStep += 1;
901
902// We keep only charged tracks :
903
904 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
905
906 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
907 vol[2] = gMC->CurrentVolID(copy);
908 vol[3] = copy;
909
d6fb41ac 910 static Int_t idV0R1 = gMC->VolId("V0R1");
911 static Int_t idV0L1 = gMC->VolId("V0L1");
912 static Int_t idV0R2 = gMC->VolId("V0R2");
913 static Int_t idV0L2 = gMC->VolId("V0L2");
914 static Int_t idV0R3 = gMC->VolId("V0R3");
915 static Int_t idV0L3 = gMC->VolId("V0L3");
916 static Int_t idV0R4 = gMC->VolId("V0R4");
917 static Int_t idV0L4 = gMC->VolId("V0L4");
918 static Int_t idV0R5 = gMC->VolId("V0R5");
919 static Int_t idV0R6 = gMC->VolId("V0R6");
920
921 if ( gMC->CurrentVolID(copy) == idV0R1 ||
922 gMC->CurrentVolID(copy) == idV0L1 )
f4f76f65 923 ringNumber = 1.0;
d6fb41ac 924 else if ( gMC->CurrentVolID(copy) == idV0R2 ||
925 gMC->CurrentVolID(copy) == idV0L2 )
f4f76f65 926 ringNumber = 2.0;
d6fb41ac 927 else if ( gMC->CurrentVolID(copy) == idV0R3 ||
928 gMC->CurrentVolID(copy) == idV0R4 ||
929 gMC->CurrentVolID(copy) == idV0L3 )
f4f76f65 930 ringNumber = 3.0;
d6fb41ac 931 else if ( gMC->CurrentVolID(copy) == idV0R5 ||
932 gMC->CurrentVolID(copy) == idV0R6 ||
933 gMC->CurrentVolID(copy) == idV0L4 )
f4f76f65 934 ringNumber = 4.0;
935 else
936 ringNumber = 0.0;
937
938 if ( ringNumber > 0.5 ) {
939
940 destep = gMC->Edep();
941 step = gMC->TrackStep();
942
943 nPhotonsInStep = Int_t(destep / (fLightYield *1e-9) );
944 nPhotonsInStep = gRandom->Poisson(nPhotonsInStep);
945
946 eloss += destep;
947 tlength += step;
948
949 if ( gMC->IsTrackEntering() ) {
950
951 nPhotons = nPhotonsInStep;
952 gMC->TrackPosition(fTrackPosition);
953 gMC->TrackMomentum(fTrackMomentum);
954
955 Float_t pt = TMath::Sqrt( fTrackMomentum.Px() * fTrackMomentum.Px() +
956 fTrackMomentum.Py() * fTrackMomentum.Py() );
957
958 hits[0] = fTrackPosition.X();
959 hits[1] = fTrackPosition.Y();
960 hits[2] = fTrackPosition.Z();
961 hits[3] = Float_t (gMC->TrackPid());
962
963 hits[4] = gMC->TrackTime();
964 hits[5] = gMC->TrackCharge();
965 hits[6] = fTrackMomentum.Theta()*TMath::RadToDeg();
966 hits[7] = fTrackMomentum.Phi()*TMath::RadToDeg();
967 hits[8] = ringNumber;
968
969 hits[9] = pt;
970 hits[10] = fTrackMomentum.P();
971 hits[11] = fTrackMomentum.Px();
972 hits[12] = fTrackMomentum.Py();
973 hits[13] = fTrackMomentum.Pz();
974
975 TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber());
976 hits[14] = par->Vx();
977 hits[15] = par->Vy();
978 hits[16] = par->Vz();
979
980 tlength = 0.0;
981 eloss = 0.0;
982 }
983
984 nPhotons = nPhotons + nPhotonsInStep;
985
986 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
987
988 nPhotons = nPhotons - Int_t((Float_t(nPhotons) * fLightAttenuation * fnMeters));
989 nPhotons = nPhotons - Int_t( Float_t(nPhotons) * fFibToPhot);
990
991 hits[17] = eloss;
992 hits[18] = tlength;
993 hits[19] = nPhotons;
994 hits[20] = GetCellId (vol, hits);
995
996 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
997
998 tlength = 0.0;
999 eloss = 0.0;
1000 nPhotons = 0;
1001 nPhotonsInStep = 0;
1002
1003 numStep = 0;
1004 }
1005 }
1006
1007}
1008
1009//_____________________________________________________________________________
1010void AliVZEROv5::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1011{
1012
1013// Adds a VZERO hit
1014
1015 TClonesArray &lhits = *fHits;
1016 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1017}
1018
1019//_____________________________________________________________________________
1020void AliVZEROv5::AddDigits(Int_t *tracks, Int_t* digits)
1021{
1022
1023// Adds a VZERO digit
1024
1025 TClonesArray &ldigits = *fDigits;
1026 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1027}
1028
1029//_____________________________________________________________________________
1030void AliVZEROv5::MakeBranch(Option_t *option)
1031{
1032
1033// Creates new branches in the current Root Tree
1034
1035 char branchname[10];
1036 sprintf(branchname,"%s",GetName());
254ef8f1 1037 AliDebug(2,Form("fBufferSize = %d",fBufferSize));
f4f76f65 1038
1039 const char *cH = strstr(option,"H");
1040
1041 if (fHits && TreeH() && cH) {
1042 TreeH()->Branch(branchname,&fHits, fBufferSize);
254ef8f1 1043 AliDebug(2,Form("Making Branch %s for hits",branchname));
f4f76f65 1044 }
1045
1046 const char *cD = strstr(option,"D");
1047
1048 if (fDigits && fLoader->TreeD() && cD) {
1049 fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
254ef8f1 1050 AliDebug(2,Form("Making Branch %s for digits",branchname));
f4f76f65 1051 }
1052
1053}
1054
1055//_____________________________________________________________________________
1056Int_t AliVZEROv5::GetCellId(Int_t *vol, Float_t *hits)
1057{
1058
1059 // Returns Id of scintillator cell
1060 // Right side from 0 to 47
1061 // Left side from 48 to 95
1062
1063 // hits[8] = ring number (1 to 4)
1064 // vol[1] = copy number (1 to 8)
1065
1066 Int_t index = vol[1];
1067 Int_t RingNumber = Int_t(hits[8]);
1068 fCellId = 0;
1069
1070// cout << "volID = " << vol[0] << " copy = " << vol[1] << endl;
1071// cout << "X = " << hits[0] << " Y = " << hits[1] << endl;
1072
1073 Float_t phi = Float_t(TMath::ATan2(Double_t(hits[1]),Double_t(hits[0])) );
1074 Float_t kRaddeg = 180.0/TMath::Pi();
1075 phi = kRaddeg * phi;
1076
1077 if (index < 7) index = index + 8;
1078
1079 if (hits[2] < 0.0) {
1080 if(RingNumber < 3) {
1081 index = (index - 7) + ( ( RingNumber - 1 ) * 8);}
1082 else if(RingNumber >= 3){
1083 if(gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R3")||
1084 gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R5") )
1085 {index = (index*2 - 14) + ( ( RingNumber - 2 ) * 16); }
1086 if(gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R4")||
1087 gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R6") )
1088 {index = (index*2 - 13) + ( ( RingNumber - 2 ) * 16); }
1089 }
1090 fCellId = index;
1091 }
1092
1093 else if (hits[2] > 0.0){
1094 index = (index - 7 + 48) + ( ( RingNumber - 1 ) * 8);
1095 fCellId = index;}
1096
1097// cout << " ring = " << RingNumber << " phi = "<< phi << endl;
1098// cout << " cellID = " << fCellId << endl;
1099// cout << "**********" << endl;
1100
1101 return fCellId;
1102
1103
1104}