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User stepping methods added (E. Futo)
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47890cd3 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
47890cd3 17//////////////////////////////////////////////////////////////////////
18// //
19// (V-zero) detector version 0 as designed by the Lyon group //
20// All comments should be sent to Brigitte CHEYNIS : //
21// b.cheynis@ipnl.in2p3.fr //
61874e87 22// Geometrie du 25/02/2002 //
47890cd3 23// //
24//////////////////////////////////////////////////////////////////////
25
26#include <TMath.h>
27#include <TGeometry.h>
28#include <TTRD2.h>
29#include <TCONE.h>
30#include <TPGON.h>
31#include <TPCON.h>
32#include <TSPHE.h>
33#include <TTRAP.h>
34#include <TBRIK.h>
35#include <TBox.h>
36
37#include <TShape.h>
38#include <TNode.h>
39#include <TClonesArray.h>
40#include <TH1.h>
41#include <string.h>
3af027ba 42#include <Riostream.h>
47890cd3 43
44#include "AliVZEROv0.h"
45#include "AliRun.h"
61874e87 46#include "AliMagF.h"
47890cd3 47#include "AliVZEROhit.h"
48#include "AliVZEROdigit.h"
3af027ba 49#include <Riostream.h>
50#include <Riostream.h>
47890cd3 51
47890cd3 52#include <stdlib.h>
53#include "TObjectTable.h"
54
55#include "AliConst.h"
56#include "ABSOSHILConst.h"
57#include "ABSOConst.h"
61874e87 58#include "TLorentzVector.h"
47890cd3 59
60ClassImp(AliVZEROv0)
61
62//--------------------------------------------------------------------
63AliVZEROv0:: AliVZEROv0():AliVZERO()
64{
61874e87 65
66
47890cd3 67}
68//--------------------------------------------------------------------
69AliVZEROv0::AliVZEROv0(const char *name, const char *title):
70 AliVZERO(name,title)
71{
72
73// Standard constructor for V-zeroR Detector (right part) version 0
74
75
76 Int_t i;
77
78 printf("\n");
61874e87 79 for(i=0;i<30;i++) printf("*");
80 printf(" Create VZERO object ");
81 for(i=0;i<30;i++) printf("*");
47890cd3 82 printf("\n");
83
84}
61874e87 85
47890cd3 86//-------------------------------------------------------------------------
87void AliVZEROv0::CreateGeometry()
88{
89
61874e87 90// Creates the Geant geometry of the V-zero Detector version 0
47890cd3 91
92
93 Int_t i;
94
95 printf("\n");
61874e87 96 for(i=0;i<30;i++) printf("*");
97 printf(" Create VZERO Geometry ");
98 for(i=0;i<30;i++) printf("*");
47890cd3 99 printf("\n");
100
101
102 Int_t *idtmed = fIdtmed->GetArray()-2999;
103
61874e87 104 Int_t n_detec_R = 1;
105 Int_t n_detec_L = 1;
106
107 Int_t n_cells_R = 1;
108 Int_t n_cells_L = 1;
109
47890cd3 110 Int_t idrotm[999];
111
112 Float_t height1, height2, height3, height4, height5;
113 Float_t height;
114 Float_t theta;
115 Float_t half_thick_alu;
116 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
117 Float_t half_thick_qua4,half_thick_qua5;
118 Float_t zdet;
119 Float_t r0, r5;
120 Float_t pi = TMath::Pi();
121 Float_t thick_alu;
122
61874e87 123 height1 = 2.0; // height of cell 1, in cm
124 height2 = 3.2; // height of cell 2, in cm
125 height3 = 4.9; // height of cell 3, in cm
126 height4 = 7.5; // height of cell 4, in cm
127 height5 = 12.0; // height of cell 5, in cm
47890cd3 128
61874e87 129 theta = pi/6.0/2.0; // half angular opening = 15 degrees
47890cd3 130 half_thick_alu = 0.0025; // half thickness of aluminum foil, in cm
131 thick_alu = 2.0 * half_thick_alu;
61874e87 132 fThickness1 = 2.5;
47890cd3 133 half_thick_qua1 = fThickness1/2.0; // half thickness of WRAPPED quartz cell (inner ring)
134 half_thick_qua2 = half_thick_qua1 - 0.25;
135 half_thick_qua3 = half_thick_qua2 - 0.25;
136 half_thick_qua4 = half_thick_qua3 - 0.25;
137 half_thick_qua5 = half_thick_qua4 - 0.25;
138
139 zdet = 86.9 +fThickness/2.0; // distance to vertex (along Z axis)
61874e87 140 r0 = 4.0; // closest distance to center of the beam pipe
47890cd3 141 height = height1 + height2 + height3 + height4 + height5;
142 r5 = r0 + height;
143
61874e87 144//............................................................................
145
146// Here I add the flange which is sitting on beam line
147// right in front of V0R detector, and which I found on CERN drawing
148// entitled : ALICE BEAM VACCUM CHAMBER - RB26 version III :
149
150// Float_t pflange[3];
151//
152// pflange[0] = 3.0;
153// pflange[1] = 5.675;
154// pflange[2] = 0.9;
155//
156// gMC->Gsvolu("QFA0","TUBE", idtmed[3003], pflange, 3);
a35deab8 157// gMC->Gspos("QFA0", 1 ,"ALIC", 0.0, 0.0, 85.0+0.9, 0, "ONLY");
61874e87 158
159//............................................................................
160
47890cd3 161
61874e87 162// Creation of mother volume V0LE - left part - :
163// Face entree a -350.0 cm ...
164
165 Float_t partube[3];
166
167 partube[0] = 4.3;
168 partube[1] = 45.0;
169 partube[2] = fThickness1/2.0;
170
171 gMC->Gsvolu("V0LE","TUBE",idtmed[3002],partube,3);
172
173
174// Creation of five rings - left part - :
175// Face entree a -350.0 cm ...
176
177// Mother volume V0L0 in which will be set 5 quartz cells
178
179
180 Float_t par[11];
181
182 Float_t dist0_left;
183 Float_t r0_left = 4.3;
184 Float_t height1_left = 2.6;
185 Float_t height2_left = 4.1;
186 Float_t height3_left = 6.4;
187 Float_t height4_left = 10.2;
188 Float_t height5_left = 16.9;
189 Float_t height_left = height1_left + height2_left + height3_left
190 + height4_left + height5_left;
191 Float_t r5_left = r0_left + height_left;
192
193
194 dist0_left = r0_left + height_left / 2.0;
195 thick_alu = 2.0*half_thick_alu;
196
197 par[0] = half_thick_qua1;
198 par[1] = 0.0;
199 par[2] = 0.0;
200 par[3] = height_left / 2.0 ;
201 par[4] = TMath::Tan(theta) * r0_left;
202 par[5] = TMath::Tan(theta) * r5_left;
203 par[6] = 0.0;
204 par[7] = height_left / 2.0 ;
205 par[8] = TMath::Tan(theta) * r0_left;
206 par[9] = TMath::Tan(theta) * r5_left;
207 par[10] = 0.0;
208
209
210 gMC->Gsvolu("V0L0","TRAP",idtmed[3010],par,11); // air volume
211
212 Float_t dist1_left;
213 Float_t r1_left;
214 Float_t offset_left;
215
216 dist1_left = (- height_left + height1_left) /2.0;
217 r1_left = r0_left + height1_left;
218 offset_left = - fThickness1/2.0 + 0.1;
219
220 par[0] = half_thick_qua1 - thick_alu;
221 par[3] = height1_left / 2.0 - thick_alu;
222 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
223 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
224 par[7] = height1_left / 2.0 - thick_alu;
225 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
226 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
227
228
229 gMC->Gsvolu("V0L1","TRAP",idtmed[3002],par,11); // quartz volume
230 gMC->Gspos("V0L1",1,"V0L0", 0.0, dist1_left , 0.0, 0,"ONLY");
231
232 Float_t dist2_left;
233 Float_t r2_left;
234
235 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
236 r2_left = r1_left + height2_left;
237
238 par[0] = half_thick_qua1 - thick_alu;
239 par[3] = height2_left / 2.0 - thick_alu;
240 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
241 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
242 par[7] = height2_left / 2.0 - thick_alu;
243 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
244 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
245
246 gMC->Gsvolu("V0L2","TRAP",idtmed[3002],par,11); // quartz volume
247 gMC->Gspos("V0L2",1,"V0L0", 0.0, dist2_left , 0.0, 0,"ONLY");
248
249
250 Float_t dist3_left;
251 Float_t r3_left;
252
253 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
254 r3_left = r2_left + height3_left;
255
256 par[0] = half_thick_qua1 - thick_alu;
257 par[3] = height3_left / 2.0 - thick_alu;
258 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
259 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
260 par[7] = height3_left / 2.0 - thick_alu;
261 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
262 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
263
264 gMC->Gsvolu("V0L3","TRAP",idtmed[3002],par,11); // quartz volume
265 gMC->Gspos("V0L3",1,"V0L0", 0.0, dist3_left , 0.0, 0,"ONLY");
266
267 Float_t dist4_left;
268 Float_t r4_left;
269
270 dist4_left = (- height_left + height4_left) /2.0 + height1_left
271 + height2_left + height3_left;
272 r4_left = r3_left + height4_left;
273
274 par[0] = half_thick_qua1 - thick_alu;
275 par[3] = height4_left / 2.0 - thick_alu;
276 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
277 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
278 par[7] = height4_left / 2.0 - thick_alu;
279 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
280 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
281
282 gMC->Gsvolu("V0L4","TRAP",idtmed[3002],par,11); // quartz volume
283 gMC->Gspos("V0L4",1,"V0L0", 0.0, dist4_left , 0.0, 0,"ONLY");
284
285
286 Float_t dist5_left;
287
288
289 dist5_left = (- height_left + height5_left) /2.0 + height1_left
290 + height2_left + height3_left + height4_left;
291
292
293 par[0] = half_thick_qua1 - thick_alu;
294 par[3] = height5_left / 2.0 - thick_alu;
295 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
296 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
297 par[7] = height5_left / 2.0 - thick_alu;
298 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
299 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
300
301 gMC->Gsvolu("V0L5","TRAP",idtmed[3002],par,11); // quartz volume
302 gMC->Gspos("V0L5",1,"V0L0", 0.0, dist5_left , 0.0, 0,"ONLY");
303
304
305//............................................................................
306
307// Creation of mother volume V0RI - right part - :
47890cd3 308
47890cd3 309
310 partube[0] = r0 - 0.2;
311 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
312 partube[2] = fThickness/2.0;
313
314
315 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
316
317// Creation of carbon lids (1 mm thick) to keep V0RI box shut...
318
319 Float_t parbox[10];
320
321 parbox[0] = 0.;
322 parbox[1] = 360.;
61874e87 323 parbox[2] = 12;
47890cd3 324 parbox[3] = 2;
325 parbox[4] = -0.1/2.0;
326 parbox[5] = r0;
327 parbox[6] = r5;
328 parbox[7] = +0.1/2.0;
329 parbox[8] = r0;
330 parbox[9] = r5;
331
332
333 gMC->Gsvolu("V0CA","PGON",idtmed[3001],parbox,10);
334 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-parbox[7],0,"ONLY");
335 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+parbox[7],0,"ONLY");
336
337// Creation of aluminum rings to maintain the V0RI pieces ...
338
339 parbox[4] = -fThickness/2.0;
340 parbox[5] = r0 -0.2;
341 parbox[6] = r0;
342 parbox[7] = +fThickness/2.0;
343 parbox[8] = r0 -0.2;
344 parbox[9] = r0;
345
346 gMC->Gsvolu("V0IR","PGON",idtmed[3003],parbox,10);
347 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
348
349 parbox[4] = -fThickness/2.0;
350 parbox[5] = r5;
351 parbox[6] = r5 + 1.0;
352 parbox[7] = +fThickness/2.0;
353 parbox[8] = r5;
354 parbox[9] = r5 + 1.0;
355
356 gMC->Gsvolu("V0ER","PGON",idtmed[3003],parbox,10);
357 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
358
359// Mother volume V0R0 in which will be set 5 quartz cells
360// each one WRAPPED in reflecting aluminum :
361
61874e87 362 Float_t dist0;
47890cd3 363
364 dist0 = r0 + height / 2.0;
365 thick_alu = 2.0*half_thick_alu;
366
367 par[0] = half_thick_qua1;
368 par[1] = 0.0;
369 par[2] = 0.0;
370 par[3] = height / 2.0 ;
371 par[4] = TMath::Tan(theta) * r0;
372 par[5] = TMath::Tan(theta) * r5;
373 par[6] = 0.0;
374 par[7] = height / 2.0 ;
375 par[8] = TMath::Tan(theta) * r0;
376 par[9] = TMath::Tan(theta) * r5;
377 par[10] = 0.0;
378
379
380 gMC->Gsvolu("V0R0","TRAP",idtmed[3010],par,11); // air volume
381
382// Elementary cell of ring 1 :
383
384 Float_t dist1;
385 Float_t r1;
386 Float_t offset;
387
388 dist1 = (- height + height1) /2.0;
389 r1 = r0 + height1;
390 offset = - fThickness/2.0 + 0.1;
391
392 par[0] = half_thick_qua1 - thick_alu;
393 par[3] = height1 / 2.0 - thick_alu;
394 par[4] = TMath::Tan(theta) * r0 - thick_alu;
395 par[5] = TMath::Tan(theta) * r1- thick_alu;
396 par[7] = height1 / 2.0 - thick_alu;
397 par[8] = TMath::Tan(theta) * r0 - thick_alu;
398 par[9] = TMath::Tan(theta) * r1 - thick_alu;
399
400
401 gMC->Gsvolu("V0R1","TRAP",idtmed[3002],par,11); // quartz volume
402 gMC->Gspos("V0R1",1,"V0R0", 0.0, dist1 , 0.0, 0,"ONLY");
403
404 par[0] = half_thick_alu;
405
406 gMC->Gsvolu("V0A1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
407 gMC->Gspos("V0A1",1,"V0R1",0.0,0.0, - half_thick_qua1 + half_thick_alu,0,"ONLY");
408 gMC->Gspos("V0A1",2,"V0R1",0.0,0.0, + half_thick_qua1 - half_thick_alu,0,"ONLY");
409
410 parbox[0] = half_thick_alu;
411 parbox[1] = height1 / TMath::Cos(theta)/ 2.0;
412 parbox[2] = half_thick_qua1;
413
414 gMC->Gsvolu("V0A2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
61874e87 415 Float_t theta_deg = 180./6./2.0;
47890cd3 416 Float_t h1;
417 h1 = TMath::Tan(theta) * (r0 + height1/2.0);
418 AliMatrix(idrotm[911],90.0,+theta_deg,90.0,90.+theta_deg,0.0,0.);
419 gMC->Gspos("V0A2",1,"V0R1",-h1 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
420 AliMatrix(idrotm[912],90.0,-theta_deg,90.0,90.-theta_deg,0.0,0.);
421 gMC->Gspos("V0A2",2,"V0R1",+h1 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
422
423 parbox[0] = TMath::Tan(theta) * r0;
424 parbox[1] = half_thick_alu;
425 parbox[2] = half_thick_qua1;
426 gMC->Gsvolu("V0A3","BOX",idtmed[3004],parbox,3);
427 gMC->Gspos("V0A3",1,"V0R1",0.0, - (height1/2.0) + half_thick_alu ,0.0,0,"ONLY");
428
429
430 parbox[0] = TMath::Tan(theta) * (r0 + height1);
431 parbox[1] = half_thick_alu;
432 parbox[2] = half_thick_qua1;
433 gMC->Gsvolu("V0A4","BOX",idtmed[3004],parbox,3);
434 gMC->Gspos("V0A4",1,"V0R1",0.0, (height1/2.0) - half_thick_alu,0.0,0,"ONLY");
435
436
437// Elementary cell of ring 2 :
438
439 Float_t dist2;
440 Float_t r2;
441
442 dist2 = (- height + height2) /2.0 + height1;
443 r2 = r1 + height2;
444
445 par[0] = half_thick_qua2 - thick_alu;
446 par[3] = height2 / 2.0 - thick_alu;
447 par[4] = TMath::Tan(theta) * r1 - thick_alu;
448 par[5] = TMath::Tan(theta) * r2 - thick_alu;
449 par[7] = height2 / 2.0 - thick_alu;
450 par[8] = TMath::Tan(theta) * r1 - thick_alu;
451 par[9] = TMath::Tan(theta) * r2 - thick_alu;
452
453 gMC->Gsvolu("V0R2","TRAP",idtmed[3002],par,11); // quartz volume
454 gMC->Gspos("V0R2",1,"V0R0", 0.0, dist2 , - half_thick_qua1 + half_thick_qua2, 0,"ONLY");
455
456 par[0] = half_thick_alu;
457
458 gMC->Gsvolu("V0B1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
459 gMC->Gspos("V0B1",1,"V0R2",0.0,0.0, - half_thick_qua2 + half_thick_alu,0,"ONLY");
460 gMC->Gspos("V0B1",2,"V0R2",0.0,0.0, + half_thick_qua2 - half_thick_alu,0,"ONLY");
461
462 parbox[0] = half_thick_alu;
463 parbox[1] = height2 / TMath::Cos(theta)/ 2.0;
464 parbox[2] = half_thick_qua2;
465
466 gMC->Gsvolu("V0B2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
467 Float_t h2;
468 h2 = TMath::Tan(theta) * (r0 + height1 + height2/2.0);
469 gMC->Gspos("V0B2",1,"V0R2",-h2 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
470 gMC->Gspos("V0B2",2,"V0R2",+h2 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
471
472 parbox[0] = TMath::Tan(theta) * (r0 + height1);
473 parbox[1] = half_thick_alu;
474 parbox[2] = half_thick_qua2;
475 gMC->Gsvolu("V0B3","BOX",idtmed[3004],parbox,3);
476 gMC->Gspos("V0B3",1,"V0R2",0.0, - (height2/2.0) + half_thick_alu ,0.0,0,"ONLY");
477
478
479 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
480 parbox[1] = half_thick_alu;
481 parbox[2] = half_thick_qua2;
482 gMC->Gsvolu("V0B4","BOX",idtmed[3004],parbox,3);
483 gMC->Gspos("V0B4",1,"V0R2",0.0, (height2/2.0) - half_thick_alu,0.0,0,"ONLY");
484
485
486// Elementary cell ring 3 :
487
488 Float_t dist3;
489 Float_t r3;
490
491 dist3 = (- height + height3) /2.0 + height1 + height2;
492 r3 = r2 + height3;
493
494 par[0] = half_thick_qua3 - thick_alu;
495 par[3] = height3 / 2.0 - thick_alu;
496 par[4] = TMath::Tan(theta) * r2 - thick_alu;
497 par[5] = TMath::Tan(theta) * r3 - thick_alu;
498 par[7] = height3 / 2.0 - thick_alu;
499 par[8] = TMath::Tan(theta) * r2 - thick_alu;
500 par[9] = TMath::Tan(theta) * r3 - thick_alu;
501
502 gMC->Gsvolu("V0R3","TRAP",idtmed[3002],par,11); // quartz volume
503 gMC->Gspos("V0R3",1,"V0R0", 0.0, dist3 , - half_thick_qua1 + half_thick_qua3, 0,"ONLY");
504
505
506 par[0] = half_thick_alu;
507
508 gMC->Gsvolu("V0C1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
509 gMC->Gspos("V0C1",1,"V0R3",0.0,0.0, - half_thick_qua3 + half_thick_alu,0,"ONLY");
510 gMC->Gspos("V0C1",2,"V0R3",0.0,0.0, + half_thick_qua3 - half_thick_alu,0,"ONLY");
511
512 parbox[0] = half_thick_alu;
513 parbox[1] = height3 / TMath::Cos(theta)/ 2.0;
514 parbox[2] = half_thick_qua3;
515
516 gMC->Gsvolu("V0C2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
517 Float_t h3;
518 h3 = TMath::Tan(theta) * (r0 + height1 + height2 + height3/2.0);
519 gMC->Gspos("V0C2",1,"V0R3",-h3 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
520 gMC->Gspos("V0C2",2,"V0R3",+h3 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
521
522 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
523 parbox[1] = half_thick_alu;
524 parbox[2] = half_thick_qua3;
525 gMC->Gsvolu("V0C3","BOX",idtmed[3004],parbox,3);
526 gMC->Gspos("V0C3",1,"V0R3",0.0, - (height3/2.0) + half_thick_alu ,0.0,0,"ONLY");
527
528
529 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
530 parbox[1] = half_thick_alu;
531 parbox[2] = half_thick_qua3;
532 gMC->Gsvolu("V0C4","BOX",idtmed[3004],parbox,3);
533 gMC->Gspos("V0C4",1,"V0R3",0.0, (height3/2.0) - half_thick_alu,0.0,0,"ONLY");
534
535
536// Elementary cell ring 4 :
537
538 Float_t dist4;
539 Float_t r4;
540
541 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
542 r4 = r3 + height4;
543
544 par[0] = half_thick_qua4 - thick_alu;
545 par[3] = height4 / 2.0 - thick_alu;
546 par[4] = TMath::Tan(theta) * r3 - thick_alu;
547 par[5] = TMath::Tan(theta) * r4 - thick_alu;
548 par[7] = height4 / 2.0 - thick_alu;
549 par[8] = TMath::Tan(theta) * r3 - thick_alu;
550 par[9] = TMath::Tan(theta) * r4 - thick_alu;
551
552 gMC->Gsvolu("V0R4","TRAP",idtmed[3002],par,11); // quartz volume
553 gMC->Gspos("V0R4",1,"V0R0", 0.0, dist4 , - half_thick_qua1 + half_thick_qua4, 0,"ONLY");
554
555
556 par[0] = half_thick_alu;
557
558 gMC->Gsvolu("V0D1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
559 gMC->Gspos("V0D1",1,"V0R4",0.0,0.0, - half_thick_qua4 + half_thick_alu,0,"ONLY");
560 gMC->Gspos("V0D1",2,"V0R4",0.0,0.0, + half_thick_qua4 - half_thick_alu,0,"ONLY");
561
562 parbox[0] = half_thick_alu;
563 parbox[1] = height4 / TMath::Cos(theta)/ 2.0;
564 parbox[2] = half_thick_qua4;
565
566 gMC->Gsvolu("V0D2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
567 Float_t h4;
568 h4 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4/2.0);
569 gMC->Gspos("V0D2",1,"V0R4",-h4 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
570 gMC->Gspos("V0D2",2,"V0R4",+h4 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
571
572 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
573 parbox[1] = half_thick_alu;
574 parbox[2] = half_thick_qua4;
575 gMC->Gsvolu("V0D3","BOX",idtmed[3004],parbox,3);
576 gMC->Gspos("V0D3",1,"V0R4",0.0, - (height4/2.0) + half_thick_alu ,0.0,0,"ONLY");
577
578
579 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
580 parbox[1] = half_thick_alu;
581 parbox[2] = half_thick_qua4;
582 gMC->Gsvolu("V0D4","BOX",idtmed[3004],parbox,3);
583 gMC->Gspos("V0D4",1,"V0R4",0.0, (height4/2.0) - half_thick_alu,0.0,0,"ONLY");
584
585
586// Elementary cell ring 5 :
587
588 Float_t dist5;
589
590 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
591
592 par[0] = half_thick_qua5 - thick_alu;
593 par[3] = height5 / 2.0 - thick_alu;
594 par[4] = TMath::Tan(theta) * r4 - thick_alu;
595 par[5] = TMath::Tan(theta) * r5 - thick_alu;
596 par[7] = height5 / 2.0 - thick_alu;
597 par[8] = TMath::Tan(theta) * r4 - thick_alu;
598 par[9] = TMath::Tan(theta) * r5 - thick_alu;
599
600 gMC->Gsvolu("V0R5","TRAP",idtmed[3002],par,11); // quartz volume
601 gMC->Gspos("V0R5",1,"V0R0", 0.0, dist5 , - half_thick_qua1 + half_thick_qua5, 0,"ONLY");
602
603
604 par[0] = half_thick_alu;
605
606 gMC->Gsvolu("V0E1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
607 gMC->Gspos("V0E1",1,"V0R5",0.0,0.0, - half_thick_qua5 + half_thick_alu,0,"ONLY");
608 gMC->Gspos("V0E1",2,"V0R5",0.0,0.0, + half_thick_qua5 - half_thick_alu,0,"ONLY");
609
610 parbox[0] = half_thick_alu;
611 parbox[1] = height5 / TMath::Cos(theta)/ 2.0;
612 parbox[2] = half_thick_qua5;
613
614 gMC->Gsvolu("V0E2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
615 Float_t h5;
616 h5 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4 + height5/2.0);
617 gMC->Gspos("V0E2",1,"V0R5",-h5 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
618 gMC->Gspos("V0E2",2,"V0R5",+h5 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
619
620 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
621 parbox[1] = half_thick_alu;
622 parbox[2] = half_thick_qua5;
623 gMC->Gsvolu("V0E3","BOX",idtmed[3004],parbox,3);
624 gMC->Gspos("V0E3",1,"V0R5",0.0, - (height5/2.0) + half_thick_alu ,0.0,0,"ONLY");
625
626
627 parbox[0] = TMath::Tan(theta) * r5;
628 parbox[1] = half_thick_alu;
629 parbox[2] = half_thick_qua5;
630 gMC->Gsvolu("V0E4","BOX",idtmed[3004],parbox,3);
631 gMC->Gspos("V0E4",1,"V0R5",0.0, (height5/2.0) - half_thick_alu,0.0,0,"ONLY");
632
633
634 Float_t phi_rad ;
61874e87 635 Float_t phi_deg = 180./6.;
47890cd3 636
61874e87 637 // Partie de droite :
638
639 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
47890cd3 640 {
641 phi_rad = phi*pi/180.;
642 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
61874e87 643 gMC->Gspos("V0R0",n_detec_R,"V0RI",-dist0*TMath::Sin(phi_rad),
47890cd3 644 dist0*TMath::Cos(phi_rad),offset + half_thick_qua1,idrotm[902],"ONLY");
61874e87 645 n_detec_R++;
47890cd3 646 }
647
a35deab8 648 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,zdet,0,"ONLY");
47890cd3 649
61874e87 650 n_cells_R = (n_detec_R - 1) * 5;
47890cd3 651 printf(" \n\n\n");
61874e87 652 printf(" Number of cells on Right side = %d\n", n_cells_R);
653
654// Partie de gauche :
655
656 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
657 {
658 phi_rad = phi*pi/180.;
659 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
660 gMC->Gspos("V0L0",n_detec_L,"V0LE",-dist0_left*TMath::Sin(phi_rad),
661 dist0_left*TMath::Cos(phi_rad),offset_left + half_thick_qua1,idrotm[902],"ONLY");
662 n_detec_L++;
663 }
664
665
a35deab8 666 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,-350.0-fThickness1/2.0,0,"ONLY");
61874e87 667
668 n_cells_L = (n_detec_L - 1) * 5;
669 printf(" \n\n\n");
670 printf(" Number of cells on Left side = %d\n\n", n_cells_L);
671
47890cd3 672
673}
674
675
61874e87 676
47890cd3 677//_____________________________________________________________________________
678void AliVZEROv0::BuildGeometry()
679{
680
681 // Builds simple ROOT TNode geometry for event display
61874e87 682
47890cd3 683
684 Int_t i;
685
686 printf("\n");
61874e87 687 for(i=0;i<30;i++) printf("*");
47890cd3 688 printf(" VZERO BuildGeometry ");
61874e87 689 for(i=0;i<30;i++) printf("*");
47890cd3 690 printf("\n");
691
61874e87 692 TNode *Top;
693
47890cd3 694 TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
695 TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
61874e87 696 TNode *V0Lnode, *V0Lnode0;
697 TNode *V0Lnode1, *V0Lnode2, *V0Lnode3, *V0Lnode4, *V0Lnode5;
698
47890cd3 699 const int kColorVZERO = kGreen;
61874e87 700
47890cd3 701 Top = gAlice->GetGeometry()->GetNode("alice");
702
703 Float_t height1, height2, height3, height4, height5;
704 Float_t height;
705 Float_t theta;
706 Float_t half_thick_alu;
707 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
708 Float_t half_thick_qua4,half_thick_qua5;
709 Float_t zdet;
710 Float_t r0, r5;
711 Float_t pi = TMath::Pi();
712 Float_t thick_alu;
713
61874e87 714// height1 = 1.9;
715// height2 = 3.7;
716// height3 = 6.2;
717// height4 = 10.5;
718// height5 = 10.5;
719
720 height1 = 2.0; // height of cell 1, in cm
721 height2 = 3.2; // height of cell 2, in cm
722 height3 = 4.9; // height of cell 3, in cm
723 height4 = 7.5; // height of cell 4, in cm
724 height5 = 12.0; // height of cell 5, in cm
47890cd3 725
61874e87 726 theta = pi/6.0/2.0;
47890cd3 727 half_thick_alu = 0.0025;
728 thick_alu = 2.0 * half_thick_alu;
729 half_thick_qua1 = fThickness1/2.0;
730 half_thick_qua2 = half_thick_qua1 - 0.25;
731 half_thick_qua3 = half_thick_qua2 - 0.25;
732 half_thick_qua4 = half_thick_qua3 - 0.25;
733 half_thick_qua5 = half_thick_qua4 - 0.25;
734
735 zdet = 86.9 +fThickness/2.0;
61874e87 736 r0 = 4.0;
47890cd3 737 height = height1 + height2 + height3 + height4 + height5;
738 r5 = r0 + height;
739
740 Float_t partube[3];
741
742 partube[0] = r0 - 0.2;
743 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
744 partube[2] = fThickness/2.0;
745
746 TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
747
748 Top->cd();
749
750 V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
751
752 V0Rnode->SetLineColor(kBlue);
753 fNodes->Add(V0Rnode);
754
755 V0Rnode->SetVisibility(2);
61874e87 756
47890cd3 757
758// Rondelles de carbone (epaisseur 1 mm) de maintien des cellules ...
759
760
761 Float_t parbox[10];
762
763 parbox[0] = 0.;
764 parbox[1] = 360.;
61874e87 765 parbox[2] = 12;
47890cd3 766 parbox[3] = 2;
767 parbox[4] = -0.1/2.0;
768 parbox[5] = r0;
769 parbox[6] = r5;
770 parbox[7] = +0.1/2.0;
771 parbox[8] = r0;
772 parbox[9] = r5;
773
774
775 TPGON *V0CA = new TPGON("V0CA", "V0CA", "void",parbox[0], parbox[1],
776 parbox[2],parbox[3]);
777
778 V0CA->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
779 V0CA->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
780
781 V0Rnode->cd();
782 V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-parbox[7],0);
783 V0Rnode6->SetLineColor(kYellow);
784 fNodes->Add(V0Rnode6);
785 V0Rnode->cd();
786 V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+parbox[7],0);
787 V0Rnode7->SetLineColor(kYellow);
788 fNodes->Add(V0Rnode7);
789
790 parbox[4] = -fThickness/2.0;
791 parbox[5] = r0 - 0.2;
792 parbox[6] = r0;
793 parbox[7] = +fThickness/2.0;
794 parbox[8] = r0 - 0.2;
795 parbox[9] = r0;
796
797 TPGON *V0IR = new TPGON("V0IR","V0IR","void", parbox[0], parbox[1],
798 parbox[2],parbox[3]);
799 V0IR->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
800 V0IR->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
801
802 V0Rnode->cd();
803 V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
804 V0Rnode8->SetLineColor(kYellow);
805 fNodes->Add(V0Rnode8);
806
807 parbox[4] = -fThickness/2.0;
808 parbox[5] = r5;
809 parbox[6] = r5 + 1.0;
810 parbox[7] = +fThickness/2.0;
811 parbox[8] = r5;
812 parbox[9] = r5 + 1.0;
813
814 TPGON *V0ER = new TPGON("V0ER","V0ER","void", parbox[0], parbox[1],
815 parbox[2],parbox[3]);
816 V0ER->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
817 V0ER->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
818
819 V0Rnode->cd();
820 V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
821 V0Rnode9->SetLineColor(kYellow);
822 fNodes->Add(V0Rnode9);
823
824 Float_t dist0;
825 Float_t par[11];
826
827 dist0 = r0 + height / 2.0;
828 thick_alu = 2.0*half_thick_alu;
829
830 par[0] = half_thick_qua1;
831 par[1] = 0.0;
832 par[2] = 0.0;
833 par[3] = height / 2.0 ;
834 par[4] = TMath::Tan(theta) * r0;
835 par[5] = TMath::Tan(theta) * r5;
836 par[6] = 0.0;
837 par[7] = height / 2.0 ;
838 par[8] = TMath::Tan(theta) * r0;
839 par[9] = TMath::Tan(theta) * r5;
840 par[10] = 0.0;
841
842 TTRAP *V0R0 = new TTRAP("V0R0", "V0R0", "void", par[0], par[1], par[2], par[3],
843 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
844
845 Float_t dist1;
846 Float_t r1;
847 Float_t offset;
848
849 dist1 = (- height + height1) /2.0;
850 r1 = r0 + height1;
851 offset = - fThickness/2.0 + 0.1;
852
853 par[0] = half_thick_qua1 - thick_alu;
854 par[3] = height1 / 2.0 - thick_alu;
855 par[4] = TMath::Tan(theta) * r0 - thick_alu;
856 par[5] = TMath::Tan(theta) * r1- thick_alu;
857 par[7] = height1 / 2.0 - thick_alu;
858 par[8] = TMath::Tan(theta) * r0 - thick_alu;
859 par[9] = TMath::Tan(theta) * r1 - thick_alu;
860
861 TTRAP *V0R1 = new TTRAP("V0R1", "V0R1", "void", par[0], par[1], par[2], par[3],
862 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
863
864
865 Float_t dist2;
866 Float_t r2;
867
868 dist2 = (- height + height2) /2.0 + height1;
869 r2 = r1 + height2;
870
871 par[0] = half_thick_qua2 - thick_alu;
872 par[3] = height2 / 2.0 - thick_alu;
873 par[4] = TMath::Tan(theta) * r1 - thick_alu;
874 par[5] = TMath::Tan(theta) * r2 - thick_alu;
875 par[7] = height2 / 2.0 - thick_alu;
876 par[8] = TMath::Tan(theta) * r1 - thick_alu;
877 par[9] = TMath::Tan(theta) * r2 - thick_alu;
878
879
880 TTRAP *V0R2 = new TTRAP("V0R2", "V0R2", "void", par[0], par[1], par[2], par[3],
881 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
882
883
884 Float_t dist3;
885 Float_t r3;
886
887 dist3 = (- height + height3) /2.0 + height1 + height2;
888 r3 = r2 + height3;
889
890 par[0] = half_thick_qua3 - thick_alu;
891 par[3] = height3 / 2.0 - thick_alu;
892 par[4] = TMath::Tan(theta) * r2 - thick_alu;
893 par[5] = TMath::Tan(theta) * r3 - thick_alu;
894 par[7] = height3 / 2.0 - thick_alu;
895 par[8] = TMath::Tan(theta) * r2 - thick_alu;
896 par[9] = TMath::Tan(theta) * r3 - thick_alu;
897
898
899 TTRAP *V0R3 = new TTRAP("V0R3", "V0R3", "void", par[0], par[1], par[2], par[3],
900 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
901
902
903 Float_t dist4;
904 Float_t r4;
905
906 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
907 r4 = r3 + height4;
908
909 par[0] = half_thick_qua4 - thick_alu;
910 par[3] = height4 / 2.0 - thick_alu;
911 par[4] = TMath::Tan(theta) * r3 - thick_alu;
912 par[5] = TMath::Tan(theta) * r4 - thick_alu;
913 par[7] = height4 / 2.0 - thick_alu;
914 par[8] = TMath::Tan(theta) * r3 - thick_alu;
915 par[9] = TMath::Tan(theta) * r4 - thick_alu;
916
917
918 TTRAP *V0R4 = new TTRAP("V0R4", "V0R4", "void", par[0], par[1], par[2], par[3],
919 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
920
921
922 Float_t dist5;
923
924 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
925
926 par[0] = half_thick_qua5 - thick_alu;
927 par[3] = height5 / 2.0 - thick_alu;
928 par[4] = TMath::Tan(theta) * r4 - thick_alu;
929 par[5] = TMath::Tan(theta) * r5 - thick_alu;
930 par[7] = height5 / 2.0 - thick_alu;
931 par[8] = TMath::Tan(theta) * r4 - thick_alu;
932 par[9] = TMath::Tan(theta) * r5 - thick_alu;
933
934
935 TTRAP *V0R5 = new TTRAP("V0R5", "V0R5", "void", par[0], par[1], par[2], par[3],
936 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
937
938
939 Float_t phi;
61874e87 940 Float_t phi_deg= 180./6.;
47890cd3 941 Float_t phi_rad;
942 Float_t xdet,ydet;
61874e87 943 Int_t n_detec_R = 1;
944
47890cd3 945 char NameNode[12];
946
947
61874e87 948 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
47890cd3 949 {
950
951 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
952
953 phi_rad = phi*pi/180.;
954 xdet = dist0*TMath::Sin(phi_rad);
955 ydet = dist0*TMath::Cos(phi_rad);
956
957
61874e87 958 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 959
960 V0Rnode->cd();
961 V0Rnode0 = new TNode(NameNode,NameNode,V0R0,-xdet,ydet, offset + half_thick_qua1,mat920);
962 V0Rnode0->SetLineColor(kColorVZERO);
963 fNodes->Add(V0Rnode0);
61874e87 964 n_detec_R++;
47890cd3 965
61874e87 966 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 967 V0Rnode0->cd();
968 V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,dist1, 0.0,0);
969 V0Rnode1->SetLineColor(kColorVZERO);
970 fNodes->Add(V0Rnode1);
61874e87 971 n_detec_R++;
47890cd3 972
61874e87 973 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 974 V0Rnode0->cd();
975 V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,dist2, - half_thick_qua1 + half_thick_qua2,0);
976 V0Rnode2->SetLineColor(kColorVZERO);
977 fNodes->Add(V0Rnode2);
61874e87 978 n_detec_R++;
47890cd3 979
980
61874e87 981 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 982 V0Rnode0->cd();
983 V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,dist3, - half_thick_qua1 + half_thick_qua3,0);
984 V0Rnode3->SetLineColor(kColorVZERO);
985 fNodes->Add(V0Rnode3);
61874e87 986 n_detec_R++;
47890cd3 987
61874e87 988 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 989 V0Rnode0->cd();
990 V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,dist4, - half_thick_qua1 + half_thick_qua4,0);
991 V0Rnode4->SetLineColor(kColorVZERO);
992 fNodes->Add(V0Rnode4);
61874e87 993 n_detec_R++;
47890cd3 994
61874e87 995 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 996 V0Rnode0->cd();
997 V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,dist5, - half_thick_qua1 + half_thick_qua5,0);
998 V0Rnode5->SetLineColor(kColorVZERO);
999 fNodes->Add(V0Rnode5);
61874e87 1000 n_detec_R++;
47890cd3 1001
1002 V0Rnode0->SetVisibility(2);
1003
1004 }
47890cd3 1005
47890cd3 1006
61874e87 1007// Left side of VZERO :
47890cd3 1008
47890cd3 1009
61874e87 1010 Float_t dist0_left;
1011 Float_t r0_left = 4.3;
1012 Float_t height1_left = 2.6;
1013 Float_t height2_left = 4.1;
1014 Float_t height3_left = 6.4;
1015 Float_t height4_left = 10.2;
1016 Float_t height5_left = 16.9;
1017 Float_t height_left = height1_left + height2_left + height3_left
1018 + height4_left + height5_left;
1019 Float_t r5_left = r0_left + height_left;
47890cd3 1020
61874e87 1021 partube[0] = r0_left;
1022 partube[1] = (r5_left) / TMath::Cos(theta);
1023 partube[2] = fThickness1/2.0;
47890cd3 1024
61874e87 1025 TTUBE *V0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
1026
1027 Top->cd();
1028
1029 V0Lnode = new TNode("V0LE","V0LE",V0LE,0.0,0.0,-350.0-fThickness1/2.0,0);
1030
1031 V0Lnode->SetLineColor(kBlue);
1032 fNodes->Add(V0Lnode);
1033
1034 V0Lnode->SetVisibility(2);
1035
1036 dist0_left = r0_left + height_left / 2.0;
1037 thick_alu = 2.0*half_thick_alu;
1038
1039 par[0] = half_thick_qua1;
1040 par[1] = 0.0;
1041 par[2] = 0.0;
1042 par[3] = height_left / 2.0 ;
1043 par[4] = TMath::Tan(theta) * r0_left;
1044 par[5] = TMath::Tan(theta) * r5_left;
1045 par[6] = 0.0;
1046 par[7] = height_left / 2.0 ;
1047 par[8] = TMath::Tan(theta) * r0_left;
1048 par[9] = TMath::Tan(theta) * r5_left;
1049 par[10] = 0.0;
1050
1051 TTRAP *V0L0 = new TTRAP("V0L0", "V0L0", "void", par[0], par[1], par[2], par[3],
1052 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1053
1054
1055 Float_t dist1_left;
1056 Float_t r1_left;
1057 Float_t offset_left;
1058
1059 dist1_left = (- height_left + height1_left) /2.0;
1060 r1_left = r0_left + height1_left;
1061 offset_left = - fThickness1/2.0 + 0.1;
1062
1063 par[0] = half_thick_qua1 - thick_alu;
1064 par[3] = height1_left / 2.0 - thick_alu;
1065 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
1066 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
1067 par[7] = height1_left / 2.0 - thick_alu;
1068 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
1069 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
1070
1071 TTRAP *V0L1 = new TTRAP("V0L1", "V0L1", "void", par[0], par[1], par[2], par[3],
1072 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
47890cd3 1073
61874e87 1074 Float_t dist2_left;
1075 Float_t r2_left;
47890cd3 1076
61874e87 1077 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
1078 r2_left = r1_left + height2_left;
1079
1080 par[0] = half_thick_qua1 - thick_alu;
1081 par[3] = height2_left / 2.0 - thick_alu;
1082 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
1083 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
1084 par[7] = height2_left / 2.0 - thick_alu;
1085 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
1086 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
47890cd3 1087
61874e87 1088 TTRAP *V0L2 = new TTRAP("V0L2", "V0L2", "void", par[0], par[1], par[2], par[3],
1089 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
47890cd3 1090
47890cd3 1091
61874e87 1092
1093 Float_t dist3_left;
1094 Float_t r3_left;
1095
1096 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
1097 r3_left = r2_left + height3_left;
1098
1099 par[0] = half_thick_qua1 - thick_alu;
1100 par[3] = height3_left / 2.0 - thick_alu;
1101 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
1102 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
1103 par[7] = height3_left / 2.0 - thick_alu;
1104 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
1105 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
1106
1107 TTRAP *V0L3 = new TTRAP("V0L3", "V0L3", "void", par[0], par[1], par[2], par[3],
1108 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1109
1110
1111 Float_t dist4_left;
1112 Float_t r4_left;
1113
1114 dist4_left = (- height_left + height4_left) /2.0 + height1_left
1115 + height2_left + height3_left;
1116 r4_left = r3_left + height4_left;
1117
1118 par[0] = half_thick_qua1 - thick_alu;
1119 par[3] = height4_left / 2.0 - thick_alu;
1120 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
1121 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
1122 par[7] = height4_left / 2.0 - thick_alu;
1123 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
1124 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
1125
1126 TTRAP *V0L4 = new TTRAP("V0L4", "V0L4", "void", par[0], par[1], par[2], par[3],
1127 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1128
47890cd3 1129
61874e87 1130 Float_t dist5_left;
47890cd3 1131
61874e87 1132
1133 dist5_left = (- height_left + height5_left) /2.0 + height1_left
1134 + height2_left + height3_left + height4_left;
47890cd3 1135
61874e87 1136
1137 par[0] = half_thick_qua1 - thick_alu;
1138 par[3] = height5_left / 2.0 - thick_alu;
1139 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
1140 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
1141 par[7] = height5_left / 2.0 - thick_alu;
1142 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
1143 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
1144
1145 TTRAP *V0L5 = new TTRAP("V0L5", "V0L5", "void", par[0], par[1], par[2], par[3],
1146 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
47890cd3 1147
47890cd3 1148
61874e87 1149 Int_t n_detec_L = 1;
1150
1151 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
1152 {
47890cd3 1153
61874e87 1154 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
47890cd3 1155
61874e87 1156 phi_rad = phi*pi/180.;
1157 xdet = dist0_left*TMath::Sin(phi_rad);
1158 ydet = dist0_left*TMath::Cos(phi_rad);
1159
1160
1161 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1162
1163 V0Lnode->cd();
1164 V0Lnode0 = new TNode(NameNode,NameNode,V0L0,-xdet,ydet, offset_left + half_thick_qua1,mat920);
1165 V0Lnode0->SetLineColor(kColorVZERO);
1166 fNodes->Add(V0Lnode0);
1167 n_detec_L++;
1168
1169 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1170 V0Lnode0->cd();
1171 V0Lnode1 = new TNode(NameNode,NameNode,V0L1,0.0,dist1_left, 0.0,0);
1172 V0Lnode1->SetLineColor(kColorVZERO);
1173 fNodes->Add(V0Lnode1);
1174 n_detec_L++;
1175
1176 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1177 V0Lnode0->cd();
1178 V0Lnode2 = new TNode(NameNode,NameNode,V0L2,0.0,dist2_left, 0.0,0);
1179 V0Lnode2->SetLineColor(kColorVZERO);
1180 fNodes->Add(V0Lnode2);
1181 n_detec_L++;
1182
1183
1184 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1185 V0Lnode0->cd();
1186 V0Lnode3 = new TNode(NameNode,NameNode,V0L3,0.0,dist3_left, 0.0,0);
1187 V0Lnode3->SetLineColor(kColorVZERO);
1188 fNodes->Add(V0Lnode3);
1189 n_detec_L++;
1190
1191 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1192 V0Lnode0->cd();
1193 V0Lnode4 = new TNode(NameNode,NameNode,V0L4,0.0,dist4_left, 0.0,0);
1194 V0Lnode4->SetLineColor(kColorVZERO);
1195 fNodes->Add(V0Lnode4);
1196 n_detec_L++;
47890cd3 1197
61874e87 1198 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1199 V0Lnode0->cd();
1200 V0Lnode5 = new TNode(NameNode,NameNode,V0L5,0.0,dist5_left, 0.0,0);
1201 V0Lnode5->SetLineColor(kColorVZERO);
1202 fNodes->Add(V0Lnode5);
1203 n_detec_L++;
47890cd3 1204
61874e87 1205 V0Lnode0->SetVisibility(2);
47890cd3 1206
61874e87 1207 }
47890cd3 1208
61874e87 1209
1210}
47890cd3 1211
1212
1213//------------------------------------------------------------------------
1214void AliVZEROv0::CreateMaterials()
1215{
61874e87 1216 Int_t i;
47890cd3 1217
61874e87 1218 printf("\n");
1219 for(i=0;i<30;i++) printf("*");
1220 printf(" VZERO create materials ");
1221 for(i=0;i<30;i++) printf("*");
1222 printf("\n");
1223
47890cd3 1224
47890cd3 1225 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,
1226 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
61874e87 1227
1228
1229 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,
1230 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
47890cd3 1231
1232 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
1233 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
61874e87 1234 1.662295, 1.68337 };
47890cd3 1235
1236 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
1237 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
1238
1239 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1240
1241
1242 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
61874e87 1243
1244
47890cd3 1245 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,
1246 1e-4,1e-4,1e-4,1e-4 };
1247 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
61874e87 1248
47890cd3 1249
1250 Int_t *idtmed = fIdtmed->GetArray()-2999;
1251
47890cd3 1252
1253// Parameters related to Quarz (SiO2) :
1254
1255 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
1256 Int_t nlmatqua;
1257
1258 aqua[0] = 28.09;
1259 aqua[1] = 16.;
1260 zqua[0] = 14.;
1261 zqua[1] = 8.;
1262 densqua = 2.64;
1263 nlmatqua = -2;
1264 wmatqua[0] = 1.;
1265 wmatqua[1] = 2.;
1266
1267// Parameters related to aluminum sheets :
1268
1269 Float_t aal = 26.98;
1270 Float_t zal = 13.00;
1271 Float_t densal= 2.7;
1272 Float_t radlal= 8.9;
1273
1274// Parameters related to scintillator CH :
1275
1276 Float_t ascin[2] = {1.01,12.01};
1277 Float_t zscin[2] = {1,6};
1278 Float_t wscin[2] = {1,1};
1279 Float_t denscin = 1.03;
1280
1281// Definition of materials :
1282
61874e87 1283 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1284 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1285 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
47890cd3 1286 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
61874e87 1287 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
1288 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
47890cd3 1289
1290
1291 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
1292
1293
1294 Int_t ISXFLD = gAlice->Field()->Integ();
1295 Float_t SXMGMX = gAlice->Field()->Max();
1296
1297 Float_t tmaxfd, stemax, deemax, epsil, stmin;
1298
61874e87 1299 tmaxfd = 10.;
1300 stemax = 0.1;
1301 deemax = 0.1;
1302 epsil = 0.001;
1303 stmin = 0.001;
1304
1305 printf(" \n");
1306 printf(" StepQua, StepAlu = %f %f \n",fMaxStepQua,fMaxStepAlu);
1307 printf(" DeStepQua, DeStepAlu = %f %f \n",fMaxDestepQua,fMaxDestepAlu);
1308 printf(" \n");
1309
47890cd3 1310
1311// Active Air :
61874e87 1312 AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX,
1313 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
47890cd3 1314
1315// Inactive air :
1316
61874e87 1317 AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX,
1318 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
47890cd3 1319
61874e87 1320 AliMedium(2, "CARBON$ ", 2, 1, ISXFLD, SXMGMX,
1321 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
47890cd3 1322
61874e87 1323 AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX,
1324 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
47890cd3 1325
61874e87 1326 AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX,
1327 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1328
1329
1330 AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX,
1331 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1332
1333 AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003, 0, 0);
47890cd3 1334
1335 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
1336 gMC->Gstpar(idtmed[3000], "HADR", 1.);
1337 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
1338 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
1339
1340 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
1341 gMC->Gstpar(idtmed[3001], "HADR", 1.);
1342 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
1343 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
1344
1345 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
1346 gMC->Gstpar(idtmed[3002], "HADR", 1.);
1347 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
61874e87 1348 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
1349 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
1350 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
47890cd3 1351
1352 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
1353 gMC->Gstpar(idtmed[3003], "HADR", 1.);
1354 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
1355 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
1356
1357 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
1358 gMC->Gstpar(idtmed[3004], "HADR", 1.);
1359 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
1360 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
61874e87 1361 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
1362 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
47890cd3 1363
1364 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
1365 gMC->Gstpar(idtmed[3005], "HADR", 1.);
1366 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
1367 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
1368
7f40b0b2 1369 gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
1370 gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
47890cd3 1371
61874e87 1372
47890cd3 1373}
1374//---------------------------------------------------------------------
1375void AliVZEROv0::DrawModule()
1376{
1377
1378// Drawing is done in DrawVZERO.C
1379
1380 Int_t i;
1381
1382 printf("\n");
61874e87 1383 for(i=0;i<30;i++) printf("*");
47890cd3 1384 printf(" VZERO DrawModule ");
61874e87 1385 for(i=0;i<30;i++) printf("*");
47890cd3 1386 printf("\n");
1387
1388
1389}
1390
1391//-------------------------------------------------------------------
1392void AliVZEROv0::Init()
1393{
1394// Initialises version 0 of the VZERO Detector
1395// Just prints an information message
1396
61874e87 1397 printf(" VZERO version %d initialized \n",IsVersion());
47890cd3 1398
61874e87 1399// gMC->SetMaxStep(fMaxStepAlu);
1400// gMC->SetMaxStep(fMaxStepQua);
1401
1402// AliVZERO::Init();
1403
47890cd3 1404}
1405
1406//-------------------------------------------------------------------
1407
1408void AliVZEROv0::StepManager()
1409{
1410
61874e87 1411// (Very)Minimal version of StepManager
1412
1413
1414 Int_t copy;
1415 static Int_t vol[4];
1416 static Float_t hits[15];
47890cd3 1417
1418 TLorentzVector pos;
47890cd3 1419
61874e87 1420 TLorentzVector mom;
47890cd3 1421 Float_t theta;
1422 Float_t phi;
47890cd3 1423 Float_t kRaddeg = 180/TMath::Pi();
61874e87 1424 Float_t RingNumber;
1425
1426 Int_t ipart;
47890cd3 1427
61874e87 1428
1429// TGeant3 *geant3 = (TGeant3*) gMC;
1430// Int_t Nphot = geant3->Gckin2()->ngphot;
47890cd3 1431
61874e87 1432
1433// Only charged tracks :
47890cd3 1434
61874e87 1435 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
1436
1437
47890cd3 1438 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
1439 vol[2] = gMC->CurrentVolID(copy);
1440 vol[3] = copy;
1441
61874e87 1442 if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
1443 gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
1444 RingNumber = 1.0;
1445 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
1446 gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
1447 RingNumber = 2.0;
1448 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
1449 gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
1450 RingNumber = 3.0;
1451 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
1452 gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
1453 RingNumber = 4.0;
1454 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
1455 gMC->CurrentVolID(copy) == gMC->VolId("V0L5") )
1456 RingNumber = 5.0;
1457 else
1458 RingNumber = 0.0;
1459
1460 if (gMC->IsTrackEntering() && RingNumber > 0.5) {
1461
1462 gMC->TrackPosition(pos);
1463
1464 gMC->TrackMomentum(mom);
1465 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1466 Double_t Pt = TMath::Sqrt(tc);
1467 Double_t Pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
47890cd3 1468
61874e87 1469 theta = Float_t(TMath::ATan2(Pt,Double_t(mom[2])))*kRaddeg;
1470 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1471
1472 ipart = gMC->TrackPid();
1473
1474 hits[0] = pos[0];
1475 hits[1] = pos[1];
1476 hits[2] = pos[2];
1477 hits[3] = ipart;
1478
1479// Float_t ttime = gMC->TrackTime();
1480// hits[4] = ttime*1e9;
1481
1482 hits[4] = gMC->TrackTime();
1483 hits[5] = gMC->TrackCharge();
1484 hits[6] = theta;
1485 hits[7] = phi;
1486 hits[8] = RingNumber;
1487
1488 hits[9] = Pt;
1489 hits[10] = Pmom;
1490 hits[11] = mom[0];
1491 hits[12] = mom[1];
1492 hits[13] = mom[2];
1493
1494
1495 AddHit(gAlice->CurrentTrack(), vol, hits);
1496
1497 }
1498
47890cd3 1499}
1500
61874e87 1501//_____________________________________________________________________________
1502void AliVZEROv0::AddHit(Int_t track, Int_t *vol, Float_t *hits)
47890cd3 1503{
61874e87 1504 //
1505 // Add a VZERO hit
1506 //
47890cd3 1507
61874e87 1508 TClonesArray &lhits = *fHits;
1509 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
47890cd3 1510}
1511
1512//---------------------------------------------------------------------
61874e87 1513void AliVZEROv0::AddDigits(Int_t *tracks, Int_t* digits)
47890cd3 1514{
1515
1516 TClonesArray &ldigits = *fDigits;
47890cd3 1517 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
47890cd3 1518}
1519
47890cd3 1520//---------------------------------------------------------------------
1521void AliVZEROv0::MakeBranch(Option_t *option)
1522{
1523
1524 // Creates new branches in the current Root Tree
1525
1526
1527 char branchname[10];
1528 sprintf(branchname,"%s",GetName());
61874e87 1529 printf(" fBufferSize = %d \n",fBufferSize);
47890cd3 1530
660318ca 1531 const char *H = strstr(option,"H");
47890cd3 1532
1533 if (fHits && gAlice->TreeH() && H) {
1534 gAlice->TreeH()->Branch(branchname,&fHits, fBufferSize);
1535 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1536 }
1537
660318ca 1538 const char *D = strstr(option,"D");
47890cd3 1539 //
1540 if (fDigits && gAlice->TreeD() && D) {
1541 gAlice->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1542 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
61874e87 1543 }
1544
47890cd3 1545}