]> git.uio.no Git - u/mrichter/AliRoot.git/blame - VZERO/AliVZEROv3.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
macro to create calibration data in CDB
[u/mrichter/AliRoot.git] / VZERO / AliVZEROv3.cxx
CommitLineData
f9721da6 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 3 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 4th of december 2003 //
24// (now 3 rings instead of 5 rings as in previous versions -budget //
25// cuts !! - therefore changes in cell dimensions and offsets) //
26// previous ring 1 and ring 2 become now ring 1 //
27// previous ring 3 and ring 4 become now ring 2 //
28// previous ring 5 becomes now ring 3 - both for Left and Right //
29// V0R (now V0C) sits between Z values -89.4 and -84.9 cm //
30// V0L (now V0A) sits between Z values +350.0 and +352.0 cm //
31// New coordinate system has been implemented in october 2003 //
32// //
33//////////////////////////////////////////////////////////////////////
34
35// --- Standard libraries ---
36#include <Riostream.h>
37#include <stdlib.h>
38#include <string.h>
39
40// --- ROOT libraries ---
41#include <TClonesArray.h>
f9721da6 42#include <TGeometry.h>
43#include <TLorentzVector.h>
44#include <TMath.h>
45#include <TNode.h>
46#include <TObjectTable.h>
47#include <TTUBE.h>
48#include <TTUBS.h>
49#include <TVirtualMC.h>
50#include <TParticle.h>
51
52// --- AliRoot header files ---
f9721da6 53#include "AliConst.h"
254ef8f1 54#include "AliLog.h"
55#include "AliMC.h"
f9721da6 56#include "AliMagF.h"
254ef8f1 57#include "AliRun.h"
f9721da6 58#include "AliVZEROLoader.h"
59#include "AliVZEROdigit.h"
60#include "AliVZEROhit.h"
61#include "AliVZEROv3.h"
f9721da6 62
63ClassImp(AliVZEROv3)
64
65//_____________________________________________________________________________
66AliVZEROv3:: AliVZEROv3():AliVZERO()
67{
68// Standard default constructor
69}
70
71//_____________________________________________________________________________
72AliVZEROv3::AliVZEROv3(const char *name, const char *title):
73 AliVZERO(name,title)
74{
75
76// Standard constructor for V-zero Detector version 2
77
254ef8f1 78 AliDebug(2,"Create VZERO object");
f9721da6 79
80 fLightYield = 93.75;
81 fLightAttenuation = 0.05;
82 fnMeters = 15.0;
83 fFibToPhot = 0.3;
84
85}
86
87//_____________________________________________________________________________
88void AliVZEROv3::CreateGeometry()
89{
90
91// Creates the GEANT geometry of the V-zero Detector version 3
92
254ef8f1 93 AliDebug(2,"Create VZERO Geometry");
f9721da6 94
95 Int_t *idtmed = fIdtmed->GetArray()-2999;
96
97 Int_t ndetR = 1;
98 Int_t ndetL = 1;
99
100 Int_t ncellsR = 1;
101 Int_t ncellsL = 1;
102
103 Int_t idrotm[999];
104
105 Float_t height1Right, height2Right, height3Right;
106 Float_t heightRight;
107 Float_t theta;
108
109 Float_t halfThickQua;
110
111 Float_t zdet;
112 Float_t r0Right, r3Right;
113 Float_t pi = TMath::Pi();
114
115 height1Right = 1.82 + 3.81; // height of cell 1, in cm
116 height2Right = 4.72 + 7.12; // height of cell 2, in cm
117 height3Right = 10.83; // height of cell 3, in cm
118
119 theta = pi/6.0/2.0; // half angular opening = 15 degrees
120
121 halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring)
122
123// distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from
124// absorber nose sitting at 90 cm. Will use -zdet later...
125// size of V0R box (fThickness) is increased by 1 mm as compared to version v2
126
127 fThickness = fThickness + 0.1;
128 zdet = 90.0 - 0.6 - fThickness/2.0; // distance to vertex (along Z axis)
129 r0Right = 4.05; // closest distance to center of the beam pipe
130 heightRight = height1Right + height2Right + height3Right;
131 r3Right = r0Right + heightRight;
132
133// Creation of mother volume v0LE - left part - :
134// Entrance face at +350.0 cm (new coordinate system) ...
135
136 Float_t partube[3];
137
138 partube[0] = 4.3;
139 partube[1] = 45.0;
140 partube[2] = fThickness1/2.0;
141
142 gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
143
144// Creation of five rings - left part - :
145// Entrance face at +350.0 cm (new coordinate system) ...
146
147// Mother volume v0L0 in which will be set 5 scintillator cells
148
149 Float_t partubs[5];
150
151 Float_t r0Left = 4.3;
152 Float_t height1Left = 2.6 + 4.1; // previous ring 1 + ring 2
153 Float_t height2Left = 6.4 + 10.2; // previous ring 3 + ring 4
154 Float_t height3Left = 16.9;
155 Float_t heightLeft = height1Left + height2Left + height3Left;
156
157 Float_t r3Left = r0Left + heightLeft;
158
159 partubs[0] = r0Left;
160 partubs[1] = r3Left;
161 partubs[2] = fThickness1/2.0;
162 partubs[3] = 90.0-15.0;
163 partubs[4] = 120.0-15.0;
164
165 gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume
166
167 Float_t r1Left = r0Left + height1Left;
168
169 partubs[0] = r0Left;
170 partubs[1] = r1Left;
171
172 gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume
173 gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
174
175 Float_t r2Left = r1Left + height2Left;
176
177 partubs[0] = r1Left;
178 partubs[1] = r2Left;
179
180 gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume
181 gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
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
190// Creation of mother volume v0RI - right part - :
191
192 partube[0] = r0Right - 0.2;
193 partube[1] = r3Right + 1.0;
194 partube[2] = fThickness/2.0;
195
196 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
197
198// Creation of carbon lids (3.5 mm thick) to keep v0RI box shut...
199
200 Float_t lidThickness = 0.35;
201
202 partube[0] = r0Right;
203 partube[1] = r3Right;
204 partube[2] = +lidThickness/2.0;
205
206 gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3);
207 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
208 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
209
210// Creation of aluminum rings to maintain the v0RI pieces ...
211
212 partube[0] = r0Right - 0.2;
213 partube[1] = r0Right;
214 partube[2] = +fThickness/2.0;
215
216 gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);
217 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
218
219 partube[0] = r3Right;
220 partube[1] = r3Right + 1.0;
221 partube[2] = +fThickness/2.0;
222
223 gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);
224 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
225
226// Mother volume v0R0 in which will be set 3 scintillator cells
227
228 partubs[0] = r0Right;
229 partubs[1] = r3Right;
230 partubs[2] = fThickness/2.0;
231 partubs[3] = 90.0-15.0;
232 partubs[4] = 120.0-15.0;
233
234 gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume
235
236// Elementary cell of ring 1 :
237// (cells of ring 1 will be shifted by 1.7 cm towards vertex to output fibers)
238
239 Float_t offsetFibers = 1.7;
240 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
241 Float_t r1Right = r0Right + height1Right;
242
243 partubs[0] = r0Right;
244 partubs[1] = r1Right;
245 partubs[2] = fThickness1/2.0;
246
247 gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume
248 gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY");
249
250// Elementary cell of ring 2 :
251
252 Float_t r2Right = r1Right + height2Right;
253
254 partubs[0] = r1Right;
255 partubs[1] = r2Right;
256
257 gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume
258 gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
259
260
261// Elementary cell of ring 3 :
262
263 partubs[0] = r2Right;
264 partubs[1] = r3Right;
265
266 gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume
267 gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
268
269
270 Float_t phiDeg = 180./6.;
271
272// Right part :
273
274 for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg)
275 {
276 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
277 gMC->Gspos("V0R0",ndetR,"V0RI",0.0,
278 0.0,0.0,idrotm[902],"ONLY");
279 ndetR++;
280 }
281
282 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY");
283
284 ncellsR = (ndetR - 1) * 3;
254ef8f1 285 AliInfo(Form("Number of cells on Right side = %d",ncellsR));
f9721da6 286
287// Left part :
288
289 for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg)
290 {
291 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
292 gMC->Gspos("V0L0",ndetL,"V0LE",0.0,
293 0.0,0.0,idrotm[902],"ONLY");
294 ndetL++;
295 }
296
297 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,350.0+fThickness1/2.0,0,"ONLY");
298
299 ncellsL = (ndetL - 1) * 3;
254ef8f1 300 AliInfo(Form("Number of cells on Left side = %d", ncellsL));
f9721da6 301
302}
303
304//_____________________________________________________________________________
305void AliVZEROv3::BuildGeometry()
306{
307
308// Builds simple ROOT TNode geometry for event display
309
254ef8f1 310 AliDebug(2,"VZERO BuildGeometry");
f9721da6 311
312 TNode *top;
313
314 TNode *v0Rnode, *v0Rnode0, *v0Rnode6 , *v0Rnode7, *v0Rnode8, *v0Rnode9;
315 TNode *v0Rnode1, *v0Rnode2, *v0Rnode3;
316 TNode *v0Lnode, *v0Lnode0;
317 TNode *v0Lnode1, *v0Lnode2, *v0Lnode3;
318
319 const int kColorVZERO = kGreen;
320
321 top = gAlice->GetGeometry()->GetNode("alice");
322
323 Float_t height1Right, height2Right, height3Right;
324 Float_t heightRight;
325 Float_t theta;
326
327 Float_t halfThickQua;
328 Float_t zdet;
329 Float_t r0Right, r3Right;
330 Float_t pi = TMath::Pi();
331
332 height1Right = 1.82 + 3.81; // height of cell 1, in cm
333 height2Right = 4.72 + 7.12; // height of cell 2, in cm
334 height3Right = 10.83; // height of cell 3, in cm
335
336 theta = pi/6.0/2.0;
337
338 halfThickQua = fThickness1/2.0;
339
340 zdet = 90.0 - 0.6 - fThickness/2.0;
341 r0Right = 4.05;
342 heightRight = height1Right + height2Right + height3Right;
343 r3Right = r0Right + heightRight;
344
345 Int_t ndiv = 1;
346
347 Float_t partube[3];
348
349 partube[0] = r0Right - 0.2;
350 partube[1] = r3Right + 1.0;
351 partube[2] = fThickness/2.0;
352
353 TTUBE *v0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
354
355 top->cd();
356
357 v0Rnode = new TNode("V0RI","V0RI",v0RI,0.0,0.0,-zdet,0);
358
359 v0Rnode->SetLineColor(kYellow);
360 fNodes->Add(v0Rnode);
361 v0Rnode->SetVisibility(2);
362
363// Rondelles de carbone (epaisseur 3.5 mm) de maintien des cellules ...
364
365 Float_t lidThickness = 0.35;
366
367 partube[0] = r0Right;
368 partube[1] = r3Right;
369 partube[2] = +lidThickness/2.0;
370
371 TTUBE *v0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
372
373 v0Rnode->cd();
374 v0Rnode6 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0, fThickness/2.0-partube[2],0);
375 v0Rnode6->SetLineColor(kYellow);
376 fNodes->Add(v0Rnode6);
377 v0Rnode->cd();
378 v0Rnode7 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0,-fThickness/2.0+partube[2],0);
379 v0Rnode7->SetLineColor(kYellow);
380 fNodes->Add(v0Rnode7);
381
382 partube[0] = r0Right - 0.2;
383 partube[1] = r0Right;
384 partube[2] = +fThickness/2.0;
385
386 TTUBE *v0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
387
388 v0Rnode->cd();
389 v0Rnode8 = new TNode("V0IR", "V0IR",v0IR,0.0,0.0,0.0,0);
390 v0Rnode8->SetLineColor(kYellow);
391 fNodes->Add(v0Rnode8);
392
393 partube[0] = r3Right;
394 partube[1] = r3Right + 1.0;
395 partube[2] = +fThickness/2.0;
396
397 TTUBE *v0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
398
399 v0Rnode->cd();
400 v0Rnode9 = new TNode("V0ER", "V0ER",v0ER,0.0,0.0,0.0,0);
401 v0Rnode9->SetLineColor(kYellow);
402 fNodes->Add(v0Rnode9);
403
404 Float_t partubs[5];
405
406 partubs[0] = r0Right;
407 partubs[1] = r3Right;
408 partubs[2] = fThickness/2.0;
409 partubs[3] = 90.0-15.0;
410 partubs[4] = 120.0-15.0;
411
412 TTUBS *v0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2],
413 partubs[3], partubs[4]);
414
415 v0R0->SetNumberOfDivisions(ndiv);
416
417 Float_t r1Right = r0Right + height1Right;
418 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
419 Float_t offsetFibers = 1.7;
420
421 partubs[0] = r0Right;
422 partubs[1] = r1Right;
423 partubs[2] = fThickness1/2.0;
424
425 TTUBS *v0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2],
426 partubs[3], partubs[4]);
427
428 v0R1->SetNumberOfDivisions(ndiv);
429
430 Float_t r2Right = r1Right + height2Right;
431
432 partubs[0] = r1Right;
433 partubs[1] = r2Right;
434
435 TTUBS *v0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2],
436 partubs[3], partubs[4]);
437
438 v0R2->SetNumberOfDivisions(ndiv);
439
440 partubs[0] = r2Right;
441 partubs[1] = r3Right;
442
443 TTUBS *v0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2],
444 partubs[3], partubs[4]);
445 v0R3->SetNumberOfDivisions(ndiv);
446
447 Float_t phi;
448 Float_t phiDeg= 180./6.;
449
450 Int_t ndetR = 1;
451
452 char nameNode[12];
453
454 for (phi = 15.0; phi < 360.0; phi = phi + phiDeg)
455
456 {
457
458 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
459
460 sprintf(nameNode,"SUBDER%d",ndetR);
461
462 v0Rnode->cd();
463 v0Rnode0 = new TNode(nameNode,nameNode,v0R0,0.0,0.0, 0.0,mat920);
464 v0Rnode0->SetLineColor(kYellow);
465 fNodes->Add(v0Rnode0);
466 ndetR++;
467
468 sprintf(nameNode,"SUBDER%d",ndetR);
469 v0Rnode0->cd();
470 v0Rnode1 = new TNode(nameNode,nameNode,v0R1,0.0,0.0, -offset+ offsetFibers ,0);
471 v0Rnode1->SetLineColor(kColorVZERO);
472 fNodes->Add(v0Rnode1);
473 ndetR++;
474
475 sprintf(nameNode,"SUBDER%d",ndetR);
476 v0Rnode0->cd();
477 v0Rnode2 = new TNode(nameNode,nameNode,v0R2,0.0,0.0, -offset,0);
478 v0Rnode2->SetLineColor(kColorVZERO);
479 fNodes->Add(v0Rnode2);
480 ndetR++;
481
482 sprintf(nameNode,"SUBDER%d",ndetR);
483 v0Rnode0->cd();
484 v0Rnode3 = new TNode(nameNode,nameNode,v0R3,0.0,0.0, -offset,0);
485 v0Rnode3->SetLineColor(kColorVZERO);
486 fNodes->Add(v0Rnode3);
487 ndetR++;
488
489 v0Rnode0->SetVisibility(2);
490
491 }
492
493// Left side of VZERO :
494
495 Float_t r0Left = 4.3;
496 Float_t height1Left = 2.6 + 4.1;
497 Float_t height2Left = 6.4 + 10.2;
498 Float_t height3Left = 16.9;
499 Float_t heightLeft = height1Left + height2Left + height3Left;
500
501 Float_t r3Left = r0Left + heightLeft;
502
503 partube[0] = r0Left;
504 partube[1] = r3Left;
505 partube[2] = fThickness1/2.0;
506
507 TTUBE *v0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
508
509 top->cd();
510
511 v0Lnode = new TNode("V0LE","V0LE",v0LE,0.0,0.0,350.0+fThickness1/2.0,0);
512
513 v0Lnode->SetLineColor(kBlue);
514 fNodes->Add(v0Lnode);
515
516 v0Lnode->SetVisibility(2);
517
518 partubs[0] = r0Left;
519 partubs[1] = r3Left;
520 partubs[2] = fThickness1/2.0;
521 partubs[3] = 90.0-15.0;
522 partubs[4] = 120.0-15.0;
523
524 TTUBS *v0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2],
525 partubs[3], partubs[4]);
526
527 v0L0->SetNumberOfDivisions(ndiv);
528 v0L0->SetLineColor(7);
529
530 Float_t offsetLeft;
531 offsetLeft = - fThickness1/2.0;
532
533 Float_t r1Left = r0Left + height1Left;
534
535 partubs[0] = r0Left;
536 partubs[1] = r1Left;
537
538 TTUBS *v0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2],
539 partubs[3], partubs[4]);
540 v0L1->SetNumberOfDivisions(ndiv);
541
542 Float_t r2Left = r1Left + height2Left;
543
544 partubs[0] = r1Left;
545 partubs[1] = r2Left;
546
547 TTUBS *v0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2],
548 partubs[3], partubs[4]);
549 v0L2->SetNumberOfDivisions(ndiv);
550
551 partubs[0] = r2Left;
552 partubs[1] = r3Left;
553
554 TTUBS *v0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2],
555 partubs[3], partubs[4]);
556 v0L3->SetNumberOfDivisions(ndiv);
557
558 Int_t ndetL = 1;
559
560 for (phi = 15.0; phi < 360.0; phi = phi + phiDeg)
561
562 {
563
564 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
565
566
567 sprintf(nameNode,"SUBDEL%d",ndetL);
568
569 v0Lnode->cd();
570 v0Lnode0 = new TNode(nameNode,nameNode,v0L0,0.0,0.0, offsetLeft + halfThickQua,mat920);
571 v0Lnode0->SetLineColor(kColorVZERO);
572 fNodes->Add(v0Lnode0);
573 ndetL++;
574
575 sprintf(nameNode,"SUBDEL%d",ndetL);
576 v0Lnode0->cd();
577 v0Lnode1 = new TNode(nameNode,nameNode,v0L1,0.0,0.0, 0.0,0);
578 v0Lnode1->SetLineColor(kColorVZERO);
579 fNodes->Add(v0Lnode1);
580 ndetL++;
581
582 sprintf(nameNode,"SUBDEL%d",ndetL);
583 v0Lnode0->cd();
584 v0Lnode2 = new TNode(nameNode,nameNode,v0L2,0.0,0.0, 0.0,0);
585 v0Lnode2->SetLineColor(kColorVZERO);
586 fNodes->Add(v0Lnode2);
587 ndetL++;
588
589 sprintf(nameNode,"SUBDEL%d",ndetL);
590 v0Lnode0->cd();
591 v0Lnode3 = new TNode(nameNode,nameNode,v0L3,0.0,0.0, 0.0,0);
592 v0Lnode3->SetLineColor(kColorVZERO);
593 fNodes->Add(v0Lnode3);
594 ndetL++;
595
596 v0Lnode0->SetVisibility(2);
597
598 }
599
600}
601
602//_____________________________________________________________________________
603void AliVZEROv3::CreateMaterials()
604{
605
606// Creates materials used for geometry
607
254ef8f1 608 AliDebug(2,"VZERO create materials");
f9721da6 609
610/*
611 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,
612 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
613
614
615 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,
616 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
617
618 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
619 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
620 1.662295, 1.68337 };
621
622 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
623 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
624
625 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
626
627
628 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
629
630
631 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,
632 1e-4,1e-4,1e-4,1e-4 };
633 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
634
635*/
636
637 Int_t *idtmed = fIdtmed->GetArray()-2999;
638
f9721da6 639
640// Parameters related to Quarz (SiO2) :
641
642 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
643 Int_t nlmatqua;
644
645 aqua[0] = 28.09;
646 aqua[1] = 16.;
647 zqua[0] = 14.;
648 zqua[1] = 8.;
649 densqua = 2.64;
650 nlmatqua = -2;
651 wmatqua[0] = 1.;
652 wmatqua[1] = 2.;
653
654// Parameters related to aluminum sheets :
655
656 Float_t aal = 26.98;
657 Float_t zal = 13.00;
658 Float_t densal= 2.7;
659 Float_t radlal= 8.9;
660
661// Parameters related to scintillator CH :
662
663 Float_t ascin[2] = {1.00794,12.011};
664 Float_t zscin[2] = {1.,6.};
665 Float_t wscin[2] = {1.,1.};
666 Float_t denscin = 1.032;
667
f7b3a79e 668// AIR
669
670 Float_t aAir[4]={12.,14.,16.,36.};
671 Float_t zAir[4]={6.,7.,8.,18.};
672 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
673 Float_t dAir = 1.20479E-3;
674
f9721da6 675// Definition of materials :
f7b3a79e 676
677// AIR
678
679 AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir);
680 AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir);
f9721da6 681 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
682 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
683 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
684 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
685
686 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
687
688
689 Int_t iSXFLD = gAlice->Field()->Integ();
690 Float_t sXMGMX = gAlice->Field()->Max();
691
692 Float_t tmaxfd, stemax, deemax, epsil, stmin;
693
694 tmaxfd = 10.;
695 stemax = 0.1;
696 deemax = 0.1;
697 epsil = 0.001;
698 stmin = 0.001;
699
700// Active Air :
701 AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX,
702 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
703
704// Inactive air :
705
706 AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX,
707 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
708
709 AliMedium(2, "CARBON$ ", 2, 1, iSXFLD, sXMGMX,
710 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
711
712 AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX,
713 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
714
715 AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX,
716 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
717
718
719 AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX,
720 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
721
722 AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
723
724 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
725 gMC->Gstpar(idtmed[3000], "HADR", 1.);
726 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
727 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
728
729 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
730 gMC->Gstpar(idtmed[3001], "HADR", 1.);
731 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
732 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
733
734 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
735 gMC->Gstpar(idtmed[3002], "HADR", 1.);
736 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
737 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
738 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
739 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
740
741 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
742 gMC->Gstpar(idtmed[3003], "HADR", 1.);
743 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
744 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
745
746 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
747 gMC->Gstpar(idtmed[3004], "HADR", 1.);
748 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
749 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
750 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
751 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
752
753 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
754 gMC->Gstpar(idtmed[3005], "HADR", 1.);
755 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
756 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
757 gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ;
758 gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
759
760
761// geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
762// geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
763
764// gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
765// gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
766
767}
768
769//_____________________________________________________________________________
ba380e33 770void AliVZEROv3::DrawModule() const
f9721da6 771{
772
773// Drawing is done in DrawVZERO.C
774
254ef8f1 775 AliDebug(2,"VZERO DrawModule");
f9721da6 776
777}
778
779//_____________________________________________________________________________
780void AliVZEROv3::Init()
781{
782// Initialises version 2 of the VZERO Detector
783// Just prints an information message
784
254ef8f1 785 AliInfo(Form("VZERO version %d initialized",IsVersion()));
f9721da6 786
787// gMC->SetMaxStep(fMaxStepAlu);
788// gMC->SetMaxStep(fMaxStepQua);
789
790 AliVZERO::Init();
791
792}
793
794
795//_____________________________________________________________________________
796void AliVZEROv3::StepManager()
797{
798
799// Step Manager, called at each step
800
801 Int_t copy;
802 static Int_t vol[4];
803 static Float_t hits[21];
804 static Float_t eloss, tlength;
f9721da6 805 static Int_t nPhotonsInStep;
806 static Int_t nPhotons;
807 static Int_t numStep;
808 Float_t ringNumber;
809 Float_t destep, step;
810
811 numStep += 1;
812
813// We keep only charged tracks :
814
815 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
816
d6fb41ac 817 static Int_t idV0R1 = gMC->VolId("V0R1");
818 static Int_t idV0L1 = gMC->VolId("V0L1");
819 static Int_t idV0R2 = gMC->VolId("V0R2");
820 static Int_t idV0L2 = gMC->VolId("V0L2");
821 static Int_t idV0R3 = gMC->VolId("V0R3");
822 static Int_t idV0L3 = gMC->VolId("V0L3");
823
f9721da6 824 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
825 vol[2] = gMC->CurrentVolID(copy);
826 vol[3] = copy;
827
d6fb41ac 828 if ( gMC->CurrentVolID(copy) == idV0R1 ||
829 gMC->CurrentVolID(copy) == idV0L1 )
f9721da6 830 ringNumber = 1.0;
d6fb41ac 831 else if ( gMC->CurrentVolID(copy) == idV0R2 ||
832 gMC->CurrentVolID(copy) == idV0L2 )
f9721da6 833 ringNumber = 2.0;
d6fb41ac 834 else if ( gMC->CurrentVolID(copy) == idV0R3 ||
835 gMC->CurrentVolID(copy) == idV0L3 )
f9721da6 836 ringNumber = 3.0;
837 else
838 ringNumber = 0.0;
839
840 if ( ringNumber > 0.5 ) {
841
842 destep = gMC->Edep();
843 step = gMC->TrackStep();
844
845 nPhotonsInStep = Int_t(destep / (fLightYield *1e-9) );
846 nPhotonsInStep = gRandom->Poisson(nPhotonsInStep);
847
848 eloss += destep;
849 tlength += step;
850
851 if ( gMC->IsTrackEntering() ) {
852
853 nPhotons = nPhotonsInStep;
854 gMC->TrackPosition(fTrackPosition);
855 gMC->TrackMomentum(fTrackMomentum);
856
857 Float_t pt = TMath::Sqrt( fTrackMomentum.Px() * fTrackMomentum.Px() +
858 fTrackMomentum.Py() * fTrackMomentum.Py() );
859
860 hits[0] = fTrackPosition.X();
861 hits[1] = fTrackPosition.Y();
862 hits[2] = fTrackPosition.Z();
863 hits[3] = Float_t (gMC->TrackPid());
864
865 hits[4] = gMC->TrackTime();
866 hits[5] = gMC->TrackCharge();
867 hits[6] = fTrackMomentum.Theta()*TMath::RadToDeg();
868 hits[7] = fTrackMomentum.Phi()*TMath::RadToDeg();
869 hits[8] = ringNumber;
870
871 hits[9] = pt;
872 hits[10] = fTrackMomentum.P();
873 hits[11] = fTrackMomentum.Px();
874 hits[12] = fTrackMomentum.Py();
875 hits[13] = fTrackMomentum.Pz();
876
877 TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber());
878 hits[14] = par->Vx();
879 hits[15] = par->Vy();
880 hits[16] = par->Vz();
881
882 tlength = 0.0;
883 eloss = 0.0;
884
885 }
886
887 nPhotons = nPhotons + nPhotonsInStep;
888
889 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
890
891 nPhotons = nPhotons - Int_t( (Float_t(nPhotons) * fLightAttenuation * fnMeters) );
892 nPhotons = nPhotons - Int_t( Float_t(nPhotons) * fFibToPhot );
893
894 hits[17] = eloss;
895 hits[18] = tlength;
896 hits[19] = nPhotons;
897 hits[20] = GetCellId (vol, hits);
898
899 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
900
901 tlength = 0.0;
902 eloss = 0.0;
903 nPhotons = 0;
904 nPhotonsInStep = 0;
905
906 numStep = 0;
907 }
908 }
909
910}
911
912//_____________________________________________________________________________
913void AliVZEROv3::AddHit(Int_t track, Int_t *vol, Float_t *hits)
914{
915
916// Adds a VZERO hit
917
918 TClonesArray &lhits = *fHits;
919 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
920}
921
922//_____________________________________________________________________________
923void AliVZEROv3::AddDigits(Int_t *tracks, Int_t* digits)
924{
925
926// Adds a VZERO digit
927
928 TClonesArray &ldigits = *fDigits;
929 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
930}
931
932//_____________________________________________________________________________
933void AliVZEROv3::MakeBranch(Option_t *option)
934{
935
936// Creates new branches in the current Root Tree
937
938 char branchname[10];
939 sprintf(branchname,"%s",GetName());
254ef8f1 940 AliDebug(2,Form("fBufferSize = %d",fBufferSize));
f9721da6 941
942 const char *cH = strstr(option,"H");
943
944 if (fHits && TreeH() && cH) {
945 TreeH()->Branch(branchname,&fHits, fBufferSize);
254ef8f1 946 AliDebug(2,Form("Making Branch %s for hits",branchname));
f9721da6 947 }
948
949 const char *cD = strstr(option,"D");
950
951 if (fDigits && fLoader->TreeD() && cD) {
952 fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
254ef8f1 953 AliDebug(2,Form("Making Branch %s for digits",branchname));
f9721da6 954 }
955
956}
957
958//_____________________________________________________________________________
959Int_t AliVZEROv3::GetCellId(Int_t *vol, Float_t *hits)
960{
961
962 // Returns Id of scintillator cell
963 // Right side from 0 to 35
964 // Left side from 36 to 71
965
966 Int_t index = vol[1];
967 fCellId = 0;
968
969 if (index < 10) index = index + 12;
970
971 if (hits[2] < 0.0) {
972 index = (index - 10) + ( ( Int_t(hits[8]) - 1 ) * 12);
973 fCellId = index;
974 }
975 else if (hits[2] > 0.0)
976 {
977 index = (index + 26) + ( ( Int_t(hits[8]) - 1 ) * 12);
978 fCellId = index;}
979
980 return fCellId;
981}