]> git.uio.no Git - u/mrichter/AliRoot.git/blame - VZERO/AliVZEROv5.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Pair cuts and all functonality connected with them moved to AliAnalysis
[u/mrichter/AliRoot.git] / VZERO / AliVZEROv5.cxx
CommitLineData
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>
38#include <TGeant3.h>
39#include <TGeometry.h>
40#include <TLorentzVector.h>
41#include <TMath.h>
42#include <TNode.h>
43#include <TObjectTable.h>
44#include <TTUBE.h>
45#include <TTUBS.h>
46#include <TVirtualMC.h>
47#include <TParticle.h>
48
49// --- AliRoot header files ---
50#include "AliRun.h"
51#include "AliMC.h"
52#include "AliConst.h"
53#include "AliMagF.h"
54#include "AliVZEROLoader.h"
55#include "AliVZEROdigit.h"
56#include "AliVZEROhit.h"
57#include "AliVZEROv5.h"
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
74 Int_t i;
75
76 printf("\n");
77 for(i=0;i<26;i++) printf("*");
78 printf(" Create VZERO object ");
79 for(i=0;i<26;i++) printf("*");
80 printf("\n");
81
82 fLightYield = 93.75; // Light yield in BC408 (93.75 eV per photon)
83 fLightAttenuation = 0.05; // Light attenuation in fiber (0.05 per meter)
84 fnMeters = 15.0; // Number of meters of clear fibers to PM
85 fFibToPhot = 0.3; // Attenuation at fiber-photocathode interface
86}
87
88//_____________________________________________________________________________
89void AliVZEROv5::CreateGeometry()
90{
91
92// Creates the GEANT geometry of the V-zero Detector version 5
93
94 Int_t i;
95
96 printf("\n");
97 for(i=0;i<26;i++) printf("*");
98 printf(" Create VZERO Geometry ");
99 for(i=0;i<26;i++) printf("*");
100 printf("\n");
101
102 Int_t *idtmed = fIdtmed->GetArray()-2999;
103
104 Int_t ndetR = 1;
105 Int_t ndetL = 1;
106
107 Int_t ncellsR = 1;
108 Int_t ncellsL = 1;
109
110 Int_t idrotm[999];
111
112 Float_t height1Right, height2Right, height3Right, height4Right;
113 Float_t heightRight;
114 Float_t theta;
115
116 Float_t halfThickQua;
117
118 Float_t zdet;
119 Float_t r0Right, r4Right, rBoxRight;
120 Float_t pi = TMath::Pi();
121
122 height1Right = 2.6; // height of cell 1, in cm
123 height2Right = 4.6; // height of cell 2, in cm
124 height3Right = 7.6; // height of cell 3, in cm
125 height4Right = 12.7; // height of cell 4, in cm
126
127 theta = pi/4.0/2.0; // half angular opening = 22.5 degrees
128
129 halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring)
130
131// distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from
132// absorber nose sitting at 90 cm. Will use -zdet later...
133// size of V0R box (fThickness) is increased by 3 mm as compared to basic version
134
135 fThickness = fThickness + 0.3; // now 4.7 cm instead of 4.4 cm
136 zdet = 90.0 - 0.6 - fThickness/2.0; // distance to vertex (along Z axis)
137 r0Right = 4.20; // closest distance to center of the beam pipe
138 heightRight = height1Right + height2Right + height3Right + height4Right;
139 r4Right = r0Right + heightRight + 0.3;
140 rBoxRight = 38.0; // external radius of right box
141
142// Creation of mother volume v0LE - left part - :
143// Entrance face at +339.0 cm (new coordinate system) ...
144
145 Float_t partube[3];
146
147 partube[0] = 4.3;
148 partube[1] = 44.0;
149 partube[2] = fThickness1/2.0;
150
151 gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
152
153// Creation of five rings - left part - :
154// Entrance face at +339.0 cm (new coordinate system) ...
155
156// Mother volume v0L0 in which will be set 5 scintillator cells
157
158 Float_t partubs[5];
159
160 Float_t r0Left = 4.3;
161 Float_t height1Left = 3.3;
162 Float_t height2Left = 6.2;
163 Float_t height3Left = 8.9;
164 Float_t height4Left = 20.9;
165 Float_t heightLeft = height1Left + height2Left + height3Left + height4Left;
166
167 Float_t r4Left = r0Left + heightLeft;
168
169 partubs[0] = r0Left;
170 partubs[1] = r4Left;
171 partubs[2] = fThickness1/2.0;
172 partubs[3] = 90.0-22.5;
173 partubs[4] = 135.0-22.5;
174
175 gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume
176
177 Float_t r1Left = r0Left + height1Left;
178
179 partubs[0] = r0Left;
180 partubs[1] = r1Left;
181
182 gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume
183 gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
184
185 Float_t r2Left = r1Left + height2Left;
186
187 partubs[0] = r1Left;
188 partubs[1] = r2Left;
189
190 gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume
191 gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
192
193 Float_t r3Left = r2Left + height3Left;
194
195 partubs[0] = r2Left;
196 partubs[1] = r3Left;
197
198 gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5); // quartz volume
199 gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
200
201 partubs[0] = r3Left;
202 partubs[1] = r4Left;
203
204 gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5); // quartz volume
205 gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
206
207// Creation of mother volume v0RI - right part - :
208
209 partube[0] = r0Right - 0.2;
210 partube[1] = r4Right + 1.0;
211 partube[2] = fThickness/2.0;
212
213 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
214
215// Creation of carbon lids (3.0 mm thick) to keep v0RI box shut...
216
217 Float_t lidThickness = 0.30;
218
219 partube[0] = r0Right;
220 partube[1] = rBoxRight;
221 partube[2] = +lidThickness/2.0;
222
223 gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3);
224 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
225 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
226
227// Creation of aluminum rings 3.0 mm thick to maintain the v0RI pieces ...
228
229 partube[0] = r0Right;
230 partube[1] = r0Right + 0.3;
231 partube[2] = +fThickness/2.0;
232
233 gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);
234 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
235
236 partube[0] = rBoxRight - 0.3;
237 partube[1] = rBoxRight;
238 partube[2] = +fThickness/2.0;
239
240 gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);
241 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
242
243// Mother volume v0R0 in which will be set 6 scintillator cells
244
245 partubs[0] = r0Right;
246 partubs[1] = r4Right;
247 partubs[2] = fThickness/2.0;
248 partubs[3] = 90.0-22.5;
249 partubs[4] = 135.0-22.5;
250
251 gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume
252
253// Elementary cell of ring 1 :
254// (cells of ring 1 will be shifted by 2.0 cm backwards to output fibers)
255
256 Float_t offsetFibers = 1.0;
257 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
258 Float_t r1Right = r0Right + 0.3 + height1Right;
259
260 partubs[0] = r0Right + 0.3;
261 partubs[1] = r1Right;
262 partubs[2] = fThickness1/2.0;
263
264 gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume
265 gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY");
266
267// Elementary cell of ring 2 :
268// (cells of ring 2 will be shifted by 1.0 cm backwards to output fibers)
269
270 Float_t r2Right = r1Right + height2Right;
271
272 partubs[0] = r1Right;
273 partubs[1] = r2Right;
274
275 gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume
276 gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY");
277
278// Elementary cell of ring 3 :
279
280 Float_t r3Right = r2Right + height3Right;
281
282 partubs[0] = r2Right;
283 partubs[1] = r3Right;
284 partubs[3] = 90.0-22.5;
285 partubs[4] = 112.5-22.5;
286
287 gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume
288 gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
289
290 partubs[3] = 112.5-22.5;
291 partubs[4] = 135.0-22.5;
292 gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5); // scintillator volume
293 gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
294
295// Elementary cell of ring 4 :
296
297 partubs[0] = r3Right;
298 partubs[1] = r4Right;
299 partubs[3] = 90.0-22.5;
300 partubs[4] = 112.5-22.5;
301
302 gMC->Gsvolu("V0R5","TUBS",idtmed[3005],partubs,5); // scintillator volume
303 gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
304
305 partubs[3] = 112.5-22.5;
306 partubs[4] = 135.0-22.5;
307 gMC->Gsvolu("V0R6","TUBS",idtmed[3005],partubs,5); // scintillator volume
308 gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
309
310 Float_t phiDeg = 180./4.;
311
312// Right part :
313
314 for(Float_t phi = 22.5; phi < 360.0; phi = phi + phiDeg)
315 {
316 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
317 gMC->Gspos("V0R0",ndetR,"V0RI",0.0,
318 0.0,0.0,idrotm[902],"ONLY");
319 ndetR++;
320 }
321
322 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY");
323
324 ncellsR = (ndetR - 1) * 6;
325 printf(" Number of cells on Right side = %d\n", ncellsR);
326
327// Left part :
328
329 for(Float_t phi = 22.5; phi < 360.0; phi = phi + phiDeg)
330 {
331 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
332 gMC->Gspos("V0L0",ndetL,"V0LE",0.0,
333 0.0,0.0,idrotm[902],"ONLY");
334 ndetL++;
335 }
336
337 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,339.0+fThickness1/2.0,0,"ONLY");
338
339 ncellsL = (ndetL - 1) * 4;
340 printf(" Number of cells on Left side = %d\n", ncellsL);
341 for(i=0;i<75;i++) printf("*");
342 printf("\n");
343
344}
345
346//_____________________________________________________________________________
347void AliVZEROv5::BuildGeometry()
348{
349
350// Builds simple ROOT TNode geometry for event display
351
352 Int_t i;
353
354 printf("\n");
355 for(i=0;i<30;i++) printf("*");
356 printf(" VZERO BuildGeometry ");
357 for(i=0;i<30;i++) printf("*");
358 printf("\n");
359
360 TNode *top;
361
362 TNode *v0Rnode, *v0Rnode0, *v0Rnode7, *v0Rnode8, *v0Rnode9, *v0Rnode10;
363 TNode *v0Rnode1, *v0Rnode2, *v0Rnode3, *v0Rnode4, *v0Rnode5, *v0Rnode6;
364 TNode *v0Lnode, *v0Lnode0;
365 TNode *v0Lnode1, *v0Lnode2, *v0Lnode3, *v0Lnode4;
366
367 const int kColorVZERO = kGreen;
368
369 top = gAlice->GetGeometry()->GetNode("alice");
370
371 Float_t height1Right, height2Right, height3Right, height4Right;
372 Float_t heightRight;
373 Float_t theta;
374
375 Float_t halfThickQua;
376 Float_t zdet;
377 Float_t r0Right, r4Right, rBoxRight;
378 Float_t pi = TMath::Pi();
379
380 height1Right = 2.6; // height of cell 1, in cm
381 height2Right = 4.6; // height of cell 2, in cm
382 height3Right = 7.6; // height of cell 3, in cm
383 height4Right = 12.7; // height of cell 4, in cm
384
385 theta = pi/4.0/2.0;
386
387 halfThickQua = fThickness1/2.0;
388
389 zdet = 90.0 - 0.6 - fThickness/2.0;
390 r0Right = 4.20;
391 heightRight = height1Right + height2Right + height3Right + height4Right;
392 r4Right = r0Right + heightRight + 0.3;
393 rBoxRight = 38.0;
394
395 Int_t ndiv = 1;
396
397 Float_t partube[3];
398
399 partube[0] = r0Right - 0.2;
400 partube[1] = r4Right + 1.0;
401 partube[2] = fThickness/2.0;
402
403 TTUBE *v0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
404
405 top->cd();
406
407 v0Rnode = new TNode("V0RI","V0RI",v0RI,0.0,0.0,-zdet,0);
408
409 v0Rnode->SetLineColor(kYellow);
410 fNodes->Add(v0Rnode);
411 v0Rnode->SetVisibility(2);
412
413// Rondelles de carbone (epaisseur 3.0 mm) de maintien des cellules ...
414
415 Float_t lidThickness = 0.30;
416
417 partube[0] = r0Right;
418 partube[1] = rBoxRight;
419 partube[2] = +lidThickness/2.0;
420
421 TTUBE *v0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
422
423 v0Rnode->cd();
424 v0Rnode7 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0, fThickness/2.0-partube[2],0);
425 v0Rnode7->SetLineColor(kYellow);
426 fNodes->Add(v0Rnode7);
427 v0Rnode->cd();
428 v0Rnode8 = new TNode("V0CA", "V0CA",v0CA,0.0,0.0,-fThickness/2.0+partube[2],0);
429 v0Rnode8->SetLineColor(kYellow);
430 fNodes->Add(v0Rnode8);
431
432 partube[0] = r0Right;
433 partube[1] = r0Right + 0.3;
434 partube[2] = +fThickness/2.0;
435
436 TTUBE *v0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
437
438 v0Rnode->cd();
439 v0Rnode9 = new TNode("V0IR", "V0IR",v0IR,0.0,0.0,0.0,0);
440 v0Rnode9->SetLineColor(kYellow);
441 fNodes->Add(v0Rnode9);
442
443 partube[0] = rBoxRight - 0.3;
444 partube[1] = rBoxRight;
445 partube[2] = +fThickness/2.0;
446
447 TTUBE *v0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
448
449 v0Rnode->cd();
450 v0Rnode10 = new TNode("V0ER", "V0ER",v0ER,0.0,0.0,0.0,0);
451 v0Rnode10->SetLineColor(kYellow);
452 fNodes->Add(v0Rnode10);
453
454 Float_t partubs[5];
455
456 partubs[0] = r0Right;
457 partubs[1] = r4Right;
458 partubs[2] = fThickness/2.0;
459 partubs[3] = 90.0-22.5;
460 partubs[4] = 135.0-22.5;
461
462 TTUBS *v0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2],
463 partubs[3], partubs[4]);
464
465 v0R0->SetNumberOfDivisions(ndiv);
466
467 Float_t r1Right = r0Right + 0.3 + height1Right;
468 Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
469 Float_t offsetFibers = 1.0;
470
471 partubs[0] = r0Right + 0.3;
472 partubs[1] = r1Right;
473 partubs[2] = fThickness1/2.0;
474
475 TTUBS *v0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2],
476 partubs[3], partubs[4]);
477
478 v0R1->SetNumberOfDivisions(ndiv);
479
480 Float_t r2Right = r1Right + height2Right;
481
482 partubs[0] = r1Right;
483 partubs[1] = r2Right;
484
485 TTUBS *v0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2],
486 partubs[3], partubs[4]);
487
488 v0R2->SetNumberOfDivisions(ndiv);
489
490// Ring 3 :
491
492 Float_t r3Right = r2Right + height3Right;
493
494 partubs[0] = r2Right;
495 partubs[1] = r3Right;
496 partubs[3] = 90.0-22.5;
497 partubs[4] = 112.5-22.5;
498
499 TTUBS *v0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2],
500 partubs[3], partubs[4]);
501 v0R3->SetNumberOfDivisions(ndiv);
502
503 partubs[3] = 112.5-22.5;
504 partubs[4] = 135.0-22.5;
505
506 TTUBS *v0R4 = new TTUBS("V0R4", "V0R4", "void", partubs[0], partubs[1], partubs[2],
507 partubs[3], partubs[4]);
508 v0R4->SetNumberOfDivisions(ndiv);
509
510// Ring 4 :
511
512 partubs[0] = r3Right;
513 partubs[1] = r4Right;
514 partubs[3] = 90.0-22.5;
515 partubs[4] = 112.5-22.5;
516
517 TTUBS *v0R5 = new TTUBS("V0R5", "V0R5", "void", partubs[0], partubs[1], partubs[2],
518 partubs[3], partubs[4]);
519 v0R5->SetNumberOfDivisions(ndiv);
520
521 partubs[3] = 112.5-22.5;
522 partubs[4] = 135.0-22.5;
523
524 TTUBS *v0R6 = new TTUBS("V0R6", "V0R6", "void", partubs[0], partubs[1], partubs[2],
525 partubs[3], partubs[4]);
526 v0R6->SetNumberOfDivisions(ndiv);
527
528 Float_t phi;
529 Float_t phiDeg= 180./4.;
530
531 Int_t ndetR = 1;
532
533 char nameNode[12];
534
535 for (phi = 22.5; phi < 360.0; phi = phi + phiDeg)
536
537 {
538 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
539
540 sprintf(nameNode,"SUBDER%d",ndetR);
541
542 v0Rnode->cd();
543 v0Rnode0 = new TNode(nameNode,nameNode,v0R0,0.0,0.0, 0.0,mat920);
544 v0Rnode0->SetLineColor(kYellow);
545 fNodes->Add(v0Rnode0);
546 ndetR++;
547
548 sprintf(nameNode,"SUBDER%d",ndetR);
549 v0Rnode0->cd();
550 v0Rnode1 = new TNode(nameNode,nameNode,v0R1,0.0,0.0, -offset ,0);
551 v0Rnode1->SetLineColor(kColorVZERO);
552 fNodes->Add(v0Rnode1);
553 ndetR++;
554
555 sprintf(nameNode,"SUBDER%d",ndetR);
556 v0Rnode0->cd();
557 v0Rnode2 = new TNode(nameNode,nameNode,v0R2,0.0,0.0, -offset + offsetFibers,0);
558 v0Rnode2->SetLineColor(kColorVZERO);
559 fNodes->Add(v0Rnode2);
560 ndetR++;
561
562 sprintf(nameNode,"SUBDER%d",ndetR);
563 v0Rnode0->cd();
564 v0Rnode3 = new TNode(nameNode,nameNode,v0R3,0.0,0.0, -offset + 2.0*offsetFibers,0);
565 v0Rnode3->SetLineColor(kColorVZERO);
566 fNodes->Add(v0Rnode3);
567 ndetR++;
568
569 sprintf(nameNode,"SUBDER%d",ndetR);
570 v0Rnode0->cd();
571 v0Rnode4 = new TNode(nameNode,nameNode,v0R4,0.0,0.0, -offset + 2.0*offsetFibers,0);
572 v0Rnode4->SetLineColor(kColorVZERO);
573 fNodes->Add(v0Rnode4);
574 ndetR++;
575
576 sprintf(nameNode,"SUBDER%d",ndetR);
577 v0Rnode0->cd();
578 v0Rnode5 = new TNode(nameNode,nameNode,v0R5,0.0,0.0, -offset + 2.0*offsetFibers,0);
579 v0Rnode5->SetLineColor(kColorVZERO);
580 fNodes->Add(v0Rnode5);
581 ndetR++;
582
583 sprintf(nameNode,"SUBDER%d",ndetR);
584 v0Rnode0->cd();
585 v0Rnode6 = new TNode(nameNode,nameNode,v0R6,0.0,0.0, -offset + 2.0*offsetFibers,0);
586 v0Rnode6->SetLineColor(kColorVZERO);
587 fNodes->Add(v0Rnode6);
588 ndetR++;
589
590 v0Rnode0->SetVisibility(2);
591 }
592
593// Left side of VZERO :
594
595 Float_t r0Left = 4.3;
596 Float_t height1Left = 3.3;
597 Float_t height2Left = 6.2;
598 Float_t height3Left = 8.9;
599 Float_t height4Left = 20.9;
600 Float_t heightLeft = height1Left + height2Left + height3Left + height4Left;
601
602 Float_t r4Left = r0Left + heightLeft;
603
604 partube[0] = r0Left;
605 partube[1] = r4Left;
606 partube[2] = fThickness1/2.0;
607
608 TTUBE *v0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
609
610 top->cd();
611
612 v0Lnode = new TNode("V0LE","V0LE",v0LE,0.0,0.0,339.0+fThickness1/2.0,0);
613
614 v0Lnode->SetLineColor(kBlue);
615 fNodes->Add(v0Lnode);
616
617 v0Lnode->SetVisibility(2);
618
619 partubs[0] = r0Left;
620 partubs[1] = r4Left;
621 partubs[2] = fThickness1/2.0;
622 partubs[3] = 90.0-22.5;
623 partubs[4] = 135.0-22.5;
624
625 TTUBS *v0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2],
626 partubs[3], partubs[4]);
627
628 v0L0->SetNumberOfDivisions(ndiv);
629 v0L0->SetLineColor(7);
630
631 Float_t offsetLeft;
632 offsetLeft = - fThickness1/2.0;
633
634 Float_t r1Left = r0Left + height1Left;
635
636 partubs[0] = r0Left;
637 partubs[1] = r1Left;
638
639 TTUBS *v0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2],
640 partubs[3], partubs[4]);
641 v0L1->SetNumberOfDivisions(ndiv);
642
643 Float_t r2Left = r1Left + height2Left;
644
645 partubs[0] = r1Left;
646 partubs[1] = r2Left;
647
648 TTUBS *v0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2],
649 partubs[3], partubs[4]);
650 v0L2->SetNumberOfDivisions(ndiv);
651
652 Float_t r3Left = r2Left + height3Left;
653
654 partubs[0] = r2Left;
655 partubs[1] = r3Left;
656
657 TTUBS *v0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2],
658 partubs[3], partubs[4]);
659 v0L3->SetNumberOfDivisions(ndiv);
660
661 partubs[0] = r3Left;
662 partubs[1] = r4Left;
663
664 TTUBS *v0L4 = new TTUBS("V0L4", "V0L4", "void", partubs[0], partubs[1], partubs[2],
665 partubs[3], partubs[4]);
666 v0L4->SetNumberOfDivisions(ndiv);
667
668 Int_t ndetL = 1;
669
670 for (phi = 22.5; phi < 360.0; phi = phi + phiDeg)
671
672 {
673
674 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
675
676 sprintf(nameNode,"SUBDEL%d",ndetL);
677
678 v0Lnode->cd();
679 v0Lnode0 = new TNode(nameNode,nameNode,v0L0,0.0,0.0, offsetLeft + halfThickQua,mat920);
680 v0Lnode0->SetLineColor(kColorVZERO);
681 fNodes->Add(v0Lnode0);
682 ndetL++;
683
684 sprintf(nameNode,"SUBDEL%d",ndetL);
685 v0Lnode0->cd();
686 v0Lnode1 = new TNode(nameNode,nameNode,v0L1,0.0,0.0, 0.0,0);
687 v0Lnode1->SetLineColor(kColorVZERO);
688 fNodes->Add(v0Lnode1);
689 ndetL++;
690
691 sprintf(nameNode,"SUBDEL%d",ndetL);
692 v0Lnode0->cd();
693 v0Lnode2 = new TNode(nameNode,nameNode,v0L2,0.0,0.0, 0.0,0);
694 v0Lnode2->SetLineColor(kColorVZERO);
695 fNodes->Add(v0Lnode2);
696 ndetL++;
697
698 sprintf(nameNode,"SUBDEL%d",ndetL);
699 v0Lnode0->cd();
700 v0Lnode3 = new TNode(nameNode,nameNode,v0L3,0.0,0.0, 0.0,0);
701 v0Lnode3->SetLineColor(kColorVZERO);
702 fNodes->Add(v0Lnode3);
703 ndetL++;
704
705 sprintf(nameNode,"SUBDEL%d",ndetL);
706 v0Lnode0->cd();
707 v0Lnode4 = new TNode(nameNode,nameNode,v0L4,0.0,0.0, 0.0,0);
708 v0Lnode4->SetLineColor(kColorVZERO);
709 fNodes->Add(v0Lnode4);
710 ndetL++;
711
712 v0Lnode0->SetVisibility(2);
713 }
714}
715
716//_____________________________________________________________________________
717void AliVZEROv5::CreateMaterials()
718{
719
720// Creates materials used for geometry
721
722 Int_t i;
723
724 printf("\n");
725 for(i=0;i<25;i++) printf("*");
726 printf(" VZERO create materials ");
727 for(i=0;i<26;i++) printf("*");
728 printf("\n");
729
730/*
731 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,
732 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
733
734
735 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,
736 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
737
738 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
739 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
740 1.662295, 1.68337 };
741
742 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
743 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
744
745 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
746
747
748 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
749
750
751 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,
752 1e-4,1e-4,1e-4,1e-4 };
753 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
754
755*/
756
757 Int_t *idtmed = fIdtmed->GetArray()-2999;
758
759// TGeant3 *geant3 = (TGeant3*) gMC;
760
761// Parameters related to Quarz (SiO2) :
762
763 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
764 Int_t nlmatqua;
765
766 aqua[0] = 28.09;
767 aqua[1] = 16.;
768 zqua[0] = 14.;
769 zqua[1] = 8.;
770 densqua = 2.64;
771 nlmatqua = -2;
772 wmatqua[0] = 1.;
773 wmatqua[1] = 2.;
774
775// Parameters related to aluminum sheets :
776
777 Float_t aal = 26.98;
778 Float_t zal = 13.00;
779 Float_t densal= 2.7;
780 Float_t radlal= 8.9;
781
782// Parameters related to scintillator CH :
783
784 Float_t ascin[2] = {1.00794,12.011};
785 Float_t zscin[2] = {1.,6.};
786 Float_t wscin[2] = {1.,1.};
787 Float_t denscin = 1.032;
788
789// Definition of materials :
790
791 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
792 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
793 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
794 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
795 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
796 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
797
798 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
799
800
801 Int_t iSXFLD = gAlice->Field()->Integ();
802 Float_t sXMGMX = gAlice->Field()->Max();
803
804 Float_t tmaxfd, stemax, deemax, epsil, stmin;
805
806 tmaxfd = 10.;
807 stemax = 0.1;
808 deemax = 0.1;
809 epsil = 0.001;
810 stmin = 0.001;
811
812// Active Air :
813 AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX,
814 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
815
816// Inactive air :
817
818 AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX,
819 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
820
821 AliMedium(2, "CARBON$ ", 2, 1, iSXFLD, sXMGMX,
822 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
823
824 AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX,
825 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
826
827 AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX,
828 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
829
830
831 AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX,
832 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
833
834 AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
835
836 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
837 gMC->Gstpar(idtmed[3000], "HADR", 1.);
838 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
839 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
840
841 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
842 gMC->Gstpar(idtmed[3001], "HADR", 1.);
843 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
844 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
845
846 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
847 gMC->Gstpar(idtmed[3002], "HADR", 1.);
848 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
849 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
850 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
851 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
852
853 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
854 gMC->Gstpar(idtmed[3003], "HADR", 1.);
855 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
856 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
857
858 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
859 gMC->Gstpar(idtmed[3004], "HADR", 1.);
860 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
861 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
862 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
863 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
864
865 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
866 gMC->Gstpar(idtmed[3005], "HADR", 1.);
867 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
868 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
869 gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ;
870 gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
871
872
873// geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
874// geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
875
876// gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
877// gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
878
879}
880
881//_____________________________________________________________________________
882void AliVZEROv5::DrawModule()
883{
884
885// Drawing is done in DrawVZERO.C
886
887 Int_t i;
888
889 printf("\n");
890 for(i=0;i<30;i++) printf("*");
891 printf(" VZERO DrawModule ");
892 for(i=0;i<30;i++) printf("*");
893 printf("\n");
894}
895
896//_____________________________________________________________________________
897void AliVZEROv5::Init()
898{
899// Initialises version 2 of the VZERO Detector
900// Just prints an information message
901
902 printf(" VZERO version %d initialized \n",IsVersion());
903
904// gMC->SetMaxStep(fMaxStepAlu);
905// gMC->SetMaxStep(fMaxStepQua);
906
907 AliVZERO::Init();
908}
909
910//_____________________________________________________________________________
911void AliVZEROv5::StepManager()
912{
913
914// Step Manager, called at each step
915
916 Int_t copy;
917 static Int_t vol[4];
918 static Float_t hits[21];
919 static Float_t eloss, tlength;
920 static Int_t nPhotonsInStep;
921 static Int_t nPhotons;
922 static Int_t numStep;
923 Float_t ringNumber;
924 Float_t destep, step;
925
926 numStep += 1;
927
928// We keep only charged tracks :
929
930 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
931
932 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
933 vol[2] = gMC->CurrentVolID(copy);
934 vol[3] = copy;
935
936 if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
937 gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
938 ringNumber = 1.0;
939 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
940 gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
941 ringNumber = 2.0;
942 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
943 gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
944 gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
945 ringNumber = 3.0;
946 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
947 gMC->CurrentVolID(copy) == gMC->VolId("V0R6") ||
948 gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
949 ringNumber = 4.0;
950 else
951 ringNumber = 0.0;
952
953 if ( ringNumber > 0.5 ) {
954
955 destep = gMC->Edep();
956 step = gMC->TrackStep();
957
958 nPhotonsInStep = Int_t(destep / (fLightYield *1e-9) );
959 nPhotonsInStep = gRandom->Poisson(nPhotonsInStep);
960
961 eloss += destep;
962 tlength += step;
963
964 if ( gMC->IsTrackEntering() ) {
965
966 nPhotons = nPhotonsInStep;
967 gMC->TrackPosition(fTrackPosition);
968 gMC->TrackMomentum(fTrackMomentum);
969
970 Float_t pt = TMath::Sqrt( fTrackMomentum.Px() * fTrackMomentum.Px() +
971 fTrackMomentum.Py() * fTrackMomentum.Py() );
972
973 hits[0] = fTrackPosition.X();
974 hits[1] = fTrackPosition.Y();
975 hits[2] = fTrackPosition.Z();
976 hits[3] = Float_t (gMC->TrackPid());
977
978 hits[4] = gMC->TrackTime();
979 hits[5] = gMC->TrackCharge();
980 hits[6] = fTrackMomentum.Theta()*TMath::RadToDeg();
981 hits[7] = fTrackMomentum.Phi()*TMath::RadToDeg();
982 hits[8] = ringNumber;
983
984 hits[9] = pt;
985 hits[10] = fTrackMomentum.P();
986 hits[11] = fTrackMomentum.Px();
987 hits[12] = fTrackMomentum.Py();
988 hits[13] = fTrackMomentum.Pz();
989
990 TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber());
991 hits[14] = par->Vx();
992 hits[15] = par->Vy();
993 hits[16] = par->Vz();
994
995 tlength = 0.0;
996 eloss = 0.0;
997 }
998
999 nPhotons = nPhotons + nPhotonsInStep;
1000
1001 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1002
1003 nPhotons = nPhotons - Int_t((Float_t(nPhotons) * fLightAttenuation * fnMeters));
1004 nPhotons = nPhotons - Int_t( Float_t(nPhotons) * fFibToPhot);
1005
1006 hits[17] = eloss;
1007 hits[18] = tlength;
1008 hits[19] = nPhotons;
1009 hits[20] = GetCellId (vol, hits);
1010
1011 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1012
1013 tlength = 0.0;
1014 eloss = 0.0;
1015 nPhotons = 0;
1016 nPhotonsInStep = 0;
1017
1018 numStep = 0;
1019 }
1020 }
1021
1022}
1023
1024//_____________________________________________________________________________
1025void AliVZEROv5::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1026{
1027
1028// Adds a VZERO hit
1029
1030 TClonesArray &lhits = *fHits;
1031 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1032}
1033
1034//_____________________________________________________________________________
1035void AliVZEROv5::AddDigits(Int_t *tracks, Int_t* digits)
1036{
1037
1038// Adds a VZERO digit
1039
1040 TClonesArray &ldigits = *fDigits;
1041 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1042}
1043
1044//_____________________________________________________________________________
1045void AliVZEROv5::MakeBranch(Option_t *option)
1046{
1047
1048// Creates new branches in the current Root Tree
1049
1050 char branchname[10];
1051 sprintf(branchname,"%s",GetName());
1052 printf(" fBufferSize = %d \n",fBufferSize);
1053
1054 const char *cH = strstr(option,"H");
1055
1056 if (fHits && TreeH() && cH) {
1057 TreeH()->Branch(branchname,&fHits, fBufferSize);
1058 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1059 }
1060
1061 const char *cD = strstr(option,"D");
1062
1063 if (fDigits && fLoader->TreeD() && cD) {
1064 fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1065 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
1066 }
1067
1068}
1069
1070//_____________________________________________________________________________
1071Int_t AliVZEROv5::GetCellId(Int_t *vol, Float_t *hits)
1072{
1073
1074 // Returns Id of scintillator cell
1075 // Right side from 0 to 47
1076 // Left side from 48 to 95
1077
1078 // hits[8] = ring number (1 to 4)
1079 // vol[1] = copy number (1 to 8)
1080
1081 Int_t index = vol[1];
1082 Int_t RingNumber = Int_t(hits[8]);
1083 fCellId = 0;
1084
1085// cout << "volID = " << vol[0] << " copy = " << vol[1] << endl;
1086// cout << "X = " << hits[0] << " Y = " << hits[1] << endl;
1087
1088 Float_t phi = Float_t(TMath::ATan2(Double_t(hits[1]),Double_t(hits[0])) );
1089 Float_t kRaddeg = 180.0/TMath::Pi();
1090 phi = kRaddeg * phi;
1091
1092 if (index < 7) index = index + 8;
1093
1094 if (hits[2] < 0.0) {
1095 if(RingNumber < 3) {
1096 index = (index - 7) + ( ( RingNumber - 1 ) * 8);}
1097 else if(RingNumber >= 3){
1098 if(gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R3")||
1099 gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R5") )
1100 {index = (index*2 - 14) + ( ( RingNumber - 2 ) * 16); }
1101 if(gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R4")||
1102 gMC->CurrentVolID(vol[1]) == gMC->VolId("V0R6") )
1103 {index = (index*2 - 13) + ( ( RingNumber - 2 ) * 16); }
1104 }
1105 fCellId = index;
1106 }
1107
1108 else if (hits[2] > 0.0){
1109 index = (index - 7 + 48) + ( ( RingNumber - 1 ) * 8);
1110 fCellId = index;}
1111
1112// cout << " ring = " << RingNumber << " phi = "<< phi << endl;
1113// cout << " cellID = " << fCellId << endl;
1114// cout << "**********" << endl;
1115
1116 return fCellId;
1117
1118
1119}