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Updated VZERO source
[u/mrichter/AliRoot.git] / VZERO / AliVZEROv0.cxx
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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>
42#include <iostream.h>
43
44#include "AliVZEROv0.h"
45#include "AliRun.h"
61874e87 46#include "AliMagF.h"
47890cd3 47#include "AliMC.h"
48#include "AliVZEROhit.h"
49#include "AliVZEROdigit.h"
50#include <iostream.h>
51#include <fstream.h>
52
53#include <TGeant3.h>
54#include <stdlib.h>
55#include "TObjectTable.h"
56
57#include "AliConst.h"
58#include "ABSOSHILConst.h"
59#include "ABSOConst.h"
61874e87 60#include "TLorentzVector.h"
47890cd3 61
62ClassImp(AliVZEROv0)
63
64//--------------------------------------------------------------------
65AliVZEROv0:: AliVZEROv0():AliVZERO()
66{
61874e87 67
68
47890cd3 69}
70//--------------------------------------------------------------------
71AliVZEROv0::AliVZEROv0(const char *name, const char *title):
72 AliVZERO(name,title)
73{
74
75// Standard constructor for V-zeroR Detector (right part) version 0
76
77
78 Int_t i;
79
80 printf("\n");
61874e87 81 for(i=0;i<30;i++) printf("*");
82 printf(" Create VZERO object ");
83 for(i=0;i<30;i++) printf("*");
47890cd3 84 printf("\n");
85
86}
61874e87 87
47890cd3 88//-------------------------------------------------------------------------
89void AliVZEROv0::CreateGeometry()
90{
91
61874e87 92// Creates the Geant geometry of the V-zero Detector version 0
47890cd3 93
94
95 Int_t i;
96
97 printf("\n");
61874e87 98 for(i=0;i<30;i++) printf("*");
99 printf(" Create VZERO Geometry ");
100 for(i=0;i<30;i++) printf("*");
47890cd3 101 printf("\n");
102
103
104 Int_t *idtmed = fIdtmed->GetArray()-2999;
105
61874e87 106 Int_t n_detec_R = 1;
107 Int_t n_detec_L = 1;
108
109 Int_t n_cells_R = 1;
110 Int_t n_cells_L = 1;
111
47890cd3 112 Int_t idrotm[999];
113
114 Float_t height1, height2, height3, height4, height5;
115 Float_t height;
116 Float_t theta;
117 Float_t half_thick_alu;
118 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
119 Float_t half_thick_qua4,half_thick_qua5;
120 Float_t zdet;
121 Float_t r0, r5;
122 Float_t pi = TMath::Pi();
123 Float_t thick_alu;
124
61874e87 125 height1 = 2.0; // height of cell 1, in cm
126 height2 = 3.2; // height of cell 2, in cm
127 height3 = 4.9; // height of cell 3, in cm
128 height4 = 7.5; // height of cell 4, in cm
129 height5 = 12.0; // height of cell 5, in cm
47890cd3 130
61874e87 131 theta = pi/6.0/2.0; // half angular opening = 15 degrees
47890cd3 132 half_thick_alu = 0.0025; // half thickness of aluminum foil, in cm
133 thick_alu = 2.0 * half_thick_alu;
61874e87 134 fThickness1 = 2.5;
47890cd3 135 half_thick_qua1 = fThickness1/2.0; // half thickness of WRAPPED quartz cell (inner ring)
136 half_thick_qua2 = half_thick_qua1 - 0.25;
137 half_thick_qua3 = half_thick_qua2 - 0.25;
138 half_thick_qua4 = half_thick_qua3 - 0.25;
139 half_thick_qua5 = half_thick_qua4 - 0.25;
140
141 zdet = 86.9 +fThickness/2.0; // distance to vertex (along Z axis)
61874e87 142 r0 = 4.0; // closest distance to center of the beam pipe
47890cd3 143 height = height1 + height2 + height3 + height4 + height5;
144 r5 = r0 + height;
145
61874e87 146//............................................................................
147
148// Here I add the flange which is sitting on beam line
149// right in front of V0R detector, and which I found on CERN drawing
150// entitled : ALICE BEAM VACCUM CHAMBER - RB26 version III :
151
152// Float_t pflange[3];
153//
154// pflange[0] = 3.0;
155// pflange[1] = 5.675;
156// pflange[2] = 0.9;
157//
158// gMC->Gsvolu("QFA0","TUBE", idtmed[3003], pflange, 3);
159// gMC->Gspos("QFA0", 1 ,"alic", 0.0, 0.0, 85.0+0.9, 0, "ONLY");
160
161//............................................................................
162
47890cd3 163
61874e87 164// Creation of mother volume V0LE - left part - :
165// Face entree a -350.0 cm ...
166
167 Float_t partube[3];
168
169 partube[0] = 4.3;
170 partube[1] = 45.0;
171 partube[2] = fThickness1/2.0;
172
173 gMC->Gsvolu("V0LE","TUBE",idtmed[3002],partube,3);
174
175
176// Creation of five rings - left part - :
177// Face entree a -350.0 cm ...
178
179// Mother volume V0L0 in which will be set 5 quartz cells
180
181
182 Float_t par[11];
183
184 Float_t dist0_left;
185 Float_t r0_left = 4.3;
186 Float_t height1_left = 2.6;
187 Float_t height2_left = 4.1;
188 Float_t height3_left = 6.4;
189 Float_t height4_left = 10.2;
190 Float_t height5_left = 16.9;
191 Float_t height_left = height1_left + height2_left + height3_left
192 + height4_left + height5_left;
193 Float_t r5_left = r0_left + height_left;
194
195
196 dist0_left = r0_left + height_left / 2.0;
197 thick_alu = 2.0*half_thick_alu;
198
199 par[0] = half_thick_qua1;
200 par[1] = 0.0;
201 par[2] = 0.0;
202 par[3] = height_left / 2.0 ;
203 par[4] = TMath::Tan(theta) * r0_left;
204 par[5] = TMath::Tan(theta) * r5_left;
205 par[6] = 0.0;
206 par[7] = height_left / 2.0 ;
207 par[8] = TMath::Tan(theta) * r0_left;
208 par[9] = TMath::Tan(theta) * r5_left;
209 par[10] = 0.0;
210
211
212 gMC->Gsvolu("V0L0","TRAP",idtmed[3010],par,11); // air volume
213
214 Float_t dist1_left;
215 Float_t r1_left;
216 Float_t offset_left;
217
218 dist1_left = (- height_left + height1_left) /2.0;
219 r1_left = r0_left + height1_left;
220 offset_left = - fThickness1/2.0 + 0.1;
221
222 par[0] = half_thick_qua1 - thick_alu;
223 par[3] = height1_left / 2.0 - thick_alu;
224 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
225 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
226 par[7] = height1_left / 2.0 - thick_alu;
227 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
228 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
229
230
231 gMC->Gsvolu("V0L1","TRAP",idtmed[3002],par,11); // quartz volume
232 gMC->Gspos("V0L1",1,"V0L0", 0.0, dist1_left , 0.0, 0,"ONLY");
233
234 Float_t dist2_left;
235 Float_t r2_left;
236
237 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
238 r2_left = r1_left + height2_left;
239
240 par[0] = half_thick_qua1 - thick_alu;
241 par[3] = height2_left / 2.0 - thick_alu;
242 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
243 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
244 par[7] = height2_left / 2.0 - thick_alu;
245 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
246 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
247
248 gMC->Gsvolu("V0L2","TRAP",idtmed[3002],par,11); // quartz volume
249 gMC->Gspos("V0L2",1,"V0L0", 0.0, dist2_left , 0.0, 0,"ONLY");
250
251
252 Float_t dist3_left;
253 Float_t r3_left;
254
255 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
256 r3_left = r2_left + height3_left;
257
258 par[0] = half_thick_qua1 - thick_alu;
259 par[3] = height3_left / 2.0 - thick_alu;
260 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
261 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
262 par[7] = height3_left / 2.0 - thick_alu;
263 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
264 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
265
266 gMC->Gsvolu("V0L3","TRAP",idtmed[3002],par,11); // quartz volume
267 gMC->Gspos("V0L3",1,"V0L0", 0.0, dist3_left , 0.0, 0,"ONLY");
268
269 Float_t dist4_left;
270 Float_t r4_left;
271
272 dist4_left = (- height_left + height4_left) /2.0 + height1_left
273 + height2_left + height3_left;
274 r4_left = r3_left + height4_left;
275
276 par[0] = half_thick_qua1 - thick_alu;
277 par[3] = height4_left / 2.0 - thick_alu;
278 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
279 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
280 par[7] = height4_left / 2.0 - thick_alu;
281 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
282 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
283
284 gMC->Gsvolu("V0L4","TRAP",idtmed[3002],par,11); // quartz volume
285 gMC->Gspos("V0L4",1,"V0L0", 0.0, dist4_left , 0.0, 0,"ONLY");
286
287
288 Float_t dist5_left;
289
290
291 dist5_left = (- height_left + height5_left) /2.0 + height1_left
292 + height2_left + height3_left + height4_left;
293
294
295 par[0] = half_thick_qua1 - thick_alu;
296 par[3] = height5_left / 2.0 - thick_alu;
297 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
298 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
299 par[7] = height5_left / 2.0 - thick_alu;
300 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
301 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
302
303 gMC->Gsvolu("V0L5","TRAP",idtmed[3002],par,11); // quartz volume
304 gMC->Gspos("V0L5",1,"V0L0", 0.0, dist5_left , 0.0, 0,"ONLY");
305
306
307//............................................................................
308
309// Creation of mother volume V0RI - right part - :
47890cd3 310
47890cd3 311
312 partube[0] = r0 - 0.2;
313 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
314 partube[2] = fThickness/2.0;
315
316
317 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
318
319// Creation of carbon lids (1 mm thick) to keep V0RI box shut...
320
321 Float_t parbox[10];
322
323 parbox[0] = 0.;
324 parbox[1] = 360.;
61874e87 325 parbox[2] = 12;
47890cd3 326 parbox[3] = 2;
327 parbox[4] = -0.1/2.0;
328 parbox[5] = r0;
329 parbox[6] = r5;
330 parbox[7] = +0.1/2.0;
331 parbox[8] = r0;
332 parbox[9] = r5;
333
334
335 gMC->Gsvolu("V0CA","PGON",idtmed[3001],parbox,10);
336 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-parbox[7],0,"ONLY");
337 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+parbox[7],0,"ONLY");
338
339// Creation of aluminum rings to maintain the V0RI pieces ...
340
341 parbox[4] = -fThickness/2.0;
342 parbox[5] = r0 -0.2;
343 parbox[6] = r0;
344 parbox[7] = +fThickness/2.0;
345 parbox[8] = r0 -0.2;
346 parbox[9] = r0;
347
348 gMC->Gsvolu("V0IR","PGON",idtmed[3003],parbox,10);
349 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
350
351 parbox[4] = -fThickness/2.0;
352 parbox[5] = r5;
353 parbox[6] = r5 + 1.0;
354 parbox[7] = +fThickness/2.0;
355 parbox[8] = r5;
356 parbox[9] = r5 + 1.0;
357
358 gMC->Gsvolu("V0ER","PGON",idtmed[3003],parbox,10);
359 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
360
361// Mother volume V0R0 in which will be set 5 quartz cells
362// each one WRAPPED in reflecting aluminum :
363
61874e87 364 Float_t dist0;
47890cd3 365
366 dist0 = r0 + height / 2.0;
367 thick_alu = 2.0*half_thick_alu;
368
369 par[0] = half_thick_qua1;
370 par[1] = 0.0;
371 par[2] = 0.0;
372 par[3] = height / 2.0 ;
373 par[4] = TMath::Tan(theta) * r0;
374 par[5] = TMath::Tan(theta) * r5;
375 par[6] = 0.0;
376 par[7] = height / 2.0 ;
377 par[8] = TMath::Tan(theta) * r0;
378 par[9] = TMath::Tan(theta) * r5;
379 par[10] = 0.0;
380
381
382 gMC->Gsvolu("V0R0","TRAP",idtmed[3010],par,11); // air volume
383
384// Elementary cell of ring 1 :
385
386 Float_t dist1;
387 Float_t r1;
388 Float_t offset;
389
390 dist1 = (- height + height1) /2.0;
391 r1 = r0 + height1;
392 offset = - fThickness/2.0 + 0.1;
393
394 par[0] = half_thick_qua1 - thick_alu;
395 par[3] = height1 / 2.0 - thick_alu;
396 par[4] = TMath::Tan(theta) * r0 - thick_alu;
397 par[5] = TMath::Tan(theta) * r1- thick_alu;
398 par[7] = height1 / 2.0 - thick_alu;
399 par[8] = TMath::Tan(theta) * r0 - thick_alu;
400 par[9] = TMath::Tan(theta) * r1 - thick_alu;
401
402
403 gMC->Gsvolu("V0R1","TRAP",idtmed[3002],par,11); // quartz volume
404 gMC->Gspos("V0R1",1,"V0R0", 0.0, dist1 , 0.0, 0,"ONLY");
405
406 par[0] = half_thick_alu;
407
408 gMC->Gsvolu("V0A1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
409 gMC->Gspos("V0A1",1,"V0R1",0.0,0.0, - half_thick_qua1 + half_thick_alu,0,"ONLY");
410 gMC->Gspos("V0A1",2,"V0R1",0.0,0.0, + half_thick_qua1 - half_thick_alu,0,"ONLY");
411
412 parbox[0] = half_thick_alu;
413 parbox[1] = height1 / TMath::Cos(theta)/ 2.0;
414 parbox[2] = half_thick_qua1;
415
416 gMC->Gsvolu("V0A2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
61874e87 417 Float_t theta_deg = 180./6./2.0;
47890cd3 418 Float_t h1;
419 h1 = TMath::Tan(theta) * (r0 + height1/2.0);
420 AliMatrix(idrotm[911],90.0,+theta_deg,90.0,90.+theta_deg,0.0,0.);
421 gMC->Gspos("V0A2",1,"V0R1",-h1 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
422 AliMatrix(idrotm[912],90.0,-theta_deg,90.0,90.-theta_deg,0.0,0.);
423 gMC->Gspos("V0A2",2,"V0R1",+h1 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
424
425 parbox[0] = TMath::Tan(theta) * r0;
426 parbox[1] = half_thick_alu;
427 parbox[2] = half_thick_qua1;
428 gMC->Gsvolu("V0A3","BOX",idtmed[3004],parbox,3);
429 gMC->Gspos("V0A3",1,"V0R1",0.0, - (height1/2.0) + half_thick_alu ,0.0,0,"ONLY");
430
431
432 parbox[0] = TMath::Tan(theta) * (r0 + height1);
433 parbox[1] = half_thick_alu;
434 parbox[2] = half_thick_qua1;
435 gMC->Gsvolu("V0A4","BOX",idtmed[3004],parbox,3);
436 gMC->Gspos("V0A4",1,"V0R1",0.0, (height1/2.0) - half_thick_alu,0.0,0,"ONLY");
437
438
439// Elementary cell of ring 2 :
440
441 Float_t dist2;
442 Float_t r2;
443
444 dist2 = (- height + height2) /2.0 + height1;
445 r2 = r1 + height2;
446
447 par[0] = half_thick_qua2 - thick_alu;
448 par[3] = height2 / 2.0 - thick_alu;
449 par[4] = TMath::Tan(theta) * r1 - thick_alu;
450 par[5] = TMath::Tan(theta) * r2 - thick_alu;
451 par[7] = height2 / 2.0 - thick_alu;
452 par[8] = TMath::Tan(theta) * r1 - thick_alu;
453 par[9] = TMath::Tan(theta) * r2 - thick_alu;
454
455 gMC->Gsvolu("V0R2","TRAP",idtmed[3002],par,11); // quartz volume
456 gMC->Gspos("V0R2",1,"V0R0", 0.0, dist2 , - half_thick_qua1 + half_thick_qua2, 0,"ONLY");
457
458 par[0] = half_thick_alu;
459
460 gMC->Gsvolu("V0B1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
461 gMC->Gspos("V0B1",1,"V0R2",0.0,0.0, - half_thick_qua2 + half_thick_alu,0,"ONLY");
462 gMC->Gspos("V0B1",2,"V0R2",0.0,0.0, + half_thick_qua2 - half_thick_alu,0,"ONLY");
463
464 parbox[0] = half_thick_alu;
465 parbox[1] = height2 / TMath::Cos(theta)/ 2.0;
466 parbox[2] = half_thick_qua2;
467
468 gMC->Gsvolu("V0B2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
469 Float_t h2;
470 h2 = TMath::Tan(theta) * (r0 + height1 + height2/2.0);
471 gMC->Gspos("V0B2",1,"V0R2",-h2 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
472 gMC->Gspos("V0B2",2,"V0R2",+h2 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
473
474 parbox[0] = TMath::Tan(theta) * (r0 + height1);
475 parbox[1] = half_thick_alu;
476 parbox[2] = half_thick_qua2;
477 gMC->Gsvolu("V0B3","BOX",idtmed[3004],parbox,3);
478 gMC->Gspos("V0B3",1,"V0R2",0.0, - (height2/2.0) + half_thick_alu ,0.0,0,"ONLY");
479
480
481 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
482 parbox[1] = half_thick_alu;
483 parbox[2] = half_thick_qua2;
484 gMC->Gsvolu("V0B4","BOX",idtmed[3004],parbox,3);
485 gMC->Gspos("V0B4",1,"V0R2",0.0, (height2/2.0) - half_thick_alu,0.0,0,"ONLY");
486
487
488// Elementary cell ring 3 :
489
490 Float_t dist3;
491 Float_t r3;
492
493 dist3 = (- height + height3) /2.0 + height1 + height2;
494 r3 = r2 + height3;
495
496 par[0] = half_thick_qua3 - thick_alu;
497 par[3] = height3 / 2.0 - thick_alu;
498 par[4] = TMath::Tan(theta) * r2 - thick_alu;
499 par[5] = TMath::Tan(theta) * r3 - thick_alu;
500 par[7] = height3 / 2.0 - thick_alu;
501 par[8] = TMath::Tan(theta) * r2 - thick_alu;
502 par[9] = TMath::Tan(theta) * r3 - thick_alu;
503
504 gMC->Gsvolu("V0R3","TRAP",idtmed[3002],par,11); // quartz volume
505 gMC->Gspos("V0R3",1,"V0R0", 0.0, dist3 , - half_thick_qua1 + half_thick_qua3, 0,"ONLY");
506
507
508 par[0] = half_thick_alu;
509
510 gMC->Gsvolu("V0C1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
511 gMC->Gspos("V0C1",1,"V0R3",0.0,0.0, - half_thick_qua3 + half_thick_alu,0,"ONLY");
512 gMC->Gspos("V0C1",2,"V0R3",0.0,0.0, + half_thick_qua3 - half_thick_alu,0,"ONLY");
513
514 parbox[0] = half_thick_alu;
515 parbox[1] = height3 / TMath::Cos(theta)/ 2.0;
516 parbox[2] = half_thick_qua3;
517
518 gMC->Gsvolu("V0C2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
519 Float_t h3;
520 h3 = TMath::Tan(theta) * (r0 + height1 + height2 + height3/2.0);
521 gMC->Gspos("V0C2",1,"V0R3",-h3 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
522 gMC->Gspos("V0C2",2,"V0R3",+h3 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
523
524 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
525 parbox[1] = half_thick_alu;
526 parbox[2] = half_thick_qua3;
527 gMC->Gsvolu("V0C3","BOX",idtmed[3004],parbox,3);
528 gMC->Gspos("V0C3",1,"V0R3",0.0, - (height3/2.0) + half_thick_alu ,0.0,0,"ONLY");
529
530
531 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
532 parbox[1] = half_thick_alu;
533 parbox[2] = half_thick_qua3;
534 gMC->Gsvolu("V0C4","BOX",idtmed[3004],parbox,3);
535 gMC->Gspos("V0C4",1,"V0R3",0.0, (height3/2.0) - half_thick_alu,0.0,0,"ONLY");
536
537
538// Elementary cell ring 4 :
539
540 Float_t dist4;
541 Float_t r4;
542
543 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
544 r4 = r3 + height4;
545
546 par[0] = half_thick_qua4 - thick_alu;
547 par[3] = height4 / 2.0 - thick_alu;
548 par[4] = TMath::Tan(theta) * r3 - thick_alu;
549 par[5] = TMath::Tan(theta) * r4 - thick_alu;
550 par[7] = height4 / 2.0 - thick_alu;
551 par[8] = TMath::Tan(theta) * r3 - thick_alu;
552 par[9] = TMath::Tan(theta) * r4 - thick_alu;
553
554 gMC->Gsvolu("V0R4","TRAP",idtmed[3002],par,11); // quartz volume
555 gMC->Gspos("V0R4",1,"V0R0", 0.0, dist4 , - half_thick_qua1 + half_thick_qua4, 0,"ONLY");
556
557
558 par[0] = half_thick_alu;
559
560 gMC->Gsvolu("V0D1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
561 gMC->Gspos("V0D1",1,"V0R4",0.0,0.0, - half_thick_qua4 + half_thick_alu,0,"ONLY");
562 gMC->Gspos("V0D1",2,"V0R4",0.0,0.0, + half_thick_qua4 - half_thick_alu,0,"ONLY");
563
564 parbox[0] = half_thick_alu;
565 parbox[1] = height4 / TMath::Cos(theta)/ 2.0;
566 parbox[2] = half_thick_qua4;
567
568 gMC->Gsvolu("V0D2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
569 Float_t h4;
570 h4 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4/2.0);
571 gMC->Gspos("V0D2",1,"V0R4",-h4 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
572 gMC->Gspos("V0D2",2,"V0R4",+h4 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
573
574 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
575 parbox[1] = half_thick_alu;
576 parbox[2] = half_thick_qua4;
577 gMC->Gsvolu("V0D3","BOX",idtmed[3004],parbox,3);
578 gMC->Gspos("V0D3",1,"V0R4",0.0, - (height4/2.0) + half_thick_alu ,0.0,0,"ONLY");
579
580
581 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
582 parbox[1] = half_thick_alu;
583 parbox[2] = half_thick_qua4;
584 gMC->Gsvolu("V0D4","BOX",idtmed[3004],parbox,3);
585 gMC->Gspos("V0D4",1,"V0R4",0.0, (height4/2.0) - half_thick_alu,0.0,0,"ONLY");
586
587
588// Elementary cell ring 5 :
589
590 Float_t dist5;
591
592 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
593
594 par[0] = half_thick_qua5 - thick_alu;
595 par[3] = height5 / 2.0 - thick_alu;
596 par[4] = TMath::Tan(theta) * r4 - thick_alu;
597 par[5] = TMath::Tan(theta) * r5 - thick_alu;
598 par[7] = height5 / 2.0 - thick_alu;
599 par[8] = TMath::Tan(theta) * r4 - thick_alu;
600 par[9] = TMath::Tan(theta) * r5 - thick_alu;
601
602 gMC->Gsvolu("V0R5","TRAP",idtmed[3002],par,11); // quartz volume
603 gMC->Gspos("V0R5",1,"V0R0", 0.0, dist5 , - half_thick_qua1 + half_thick_qua5, 0,"ONLY");
604
605
606 par[0] = half_thick_alu;
607
608 gMC->Gsvolu("V0E1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
609 gMC->Gspos("V0E1",1,"V0R5",0.0,0.0, - half_thick_qua5 + half_thick_alu,0,"ONLY");
610 gMC->Gspos("V0E1",2,"V0R5",0.0,0.0, + half_thick_qua5 - half_thick_alu,0,"ONLY");
611
612 parbox[0] = half_thick_alu;
613 parbox[1] = height5 / TMath::Cos(theta)/ 2.0;
614 parbox[2] = half_thick_qua5;
615
616 gMC->Gsvolu("V0E2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
617 Float_t h5;
618 h5 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4 + height5/2.0);
619 gMC->Gspos("V0E2",1,"V0R5",-h5 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
620 gMC->Gspos("V0E2",2,"V0R5",+h5 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
621
622 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
623 parbox[1] = half_thick_alu;
624 parbox[2] = half_thick_qua5;
625 gMC->Gsvolu("V0E3","BOX",idtmed[3004],parbox,3);
626 gMC->Gspos("V0E3",1,"V0R5",0.0, - (height5/2.0) + half_thick_alu ,0.0,0,"ONLY");
627
628
629 parbox[0] = TMath::Tan(theta) * r5;
630 parbox[1] = half_thick_alu;
631 parbox[2] = half_thick_qua5;
632 gMC->Gsvolu("V0E4","BOX",idtmed[3004],parbox,3);
633 gMC->Gspos("V0E4",1,"V0R5",0.0, (height5/2.0) - half_thick_alu,0.0,0,"ONLY");
634
635
636 Float_t phi_rad ;
61874e87 637 Float_t phi_deg = 180./6.;
47890cd3 638
61874e87 639 // Partie de droite :
640
641 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
47890cd3 642 {
643 phi_rad = phi*pi/180.;
644 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
61874e87 645 gMC->Gspos("V0R0",n_detec_R,"V0RI",-dist0*TMath::Sin(phi_rad),
47890cd3 646 dist0*TMath::Cos(phi_rad),offset + half_thick_qua1,idrotm[902],"ONLY");
61874e87 647 n_detec_R++;
47890cd3 648 }
649
650
651 gMC->Gspos("V0RI",1,"alic",0.0,0.0,zdet,0,"ONLY");
652
61874e87 653 n_cells_R = (n_detec_R - 1) * 5;
47890cd3 654 printf(" \n\n\n");
61874e87 655 printf(" Number of cells on Right side = %d\n", n_cells_R);
656
657// Partie de gauche :
658
659 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
660 {
661 phi_rad = phi*pi/180.;
662 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
663 gMC->Gspos("V0L0",n_detec_L,"V0LE",-dist0_left*TMath::Sin(phi_rad),
664 dist0_left*TMath::Cos(phi_rad),offset_left + half_thick_qua1,idrotm[902],"ONLY");
665 n_detec_L++;
666 }
667
668
669 gMC->Gspos("V0LE",1,"alic",0.0,0.0,-350.0-fThickness1/2.0,0,"ONLY");
670
671 n_cells_L = (n_detec_L - 1) * 5;
672 printf(" \n\n\n");
673 printf(" Number of cells on Left side = %d\n\n", n_cells_L);
674
47890cd3 675
676}
677
678
61874e87 679
47890cd3 680//_____________________________________________________________________________
681void AliVZEROv0::BuildGeometry()
682{
683
684 // Builds simple ROOT TNode geometry for event display
61874e87 685
47890cd3 686
687 Int_t i;
688
689 printf("\n");
61874e87 690 for(i=0;i<30;i++) printf("*");
47890cd3 691 printf(" VZERO BuildGeometry ");
61874e87 692 for(i=0;i<30;i++) printf("*");
47890cd3 693 printf("\n");
694
61874e87 695 TNode *Top;
696
47890cd3 697 TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
698 TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
61874e87 699 TNode *V0Lnode, *V0Lnode0;
700 TNode *V0Lnode1, *V0Lnode2, *V0Lnode3, *V0Lnode4, *V0Lnode5;
701
47890cd3 702 const int kColorVZERO = kGreen;
61874e87 703
47890cd3 704 Top = gAlice->GetGeometry()->GetNode("alice");
705
706 Float_t height1, height2, height3, height4, height5;
707 Float_t height;
708 Float_t theta;
709 Float_t half_thick_alu;
710 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
711 Float_t half_thick_qua4,half_thick_qua5;
712 Float_t zdet;
713 Float_t r0, r5;
714 Float_t pi = TMath::Pi();
715 Float_t thick_alu;
716
61874e87 717// height1 = 1.9;
718// height2 = 3.7;
719// height3 = 6.2;
720// height4 = 10.5;
721// height5 = 10.5;
722
723 height1 = 2.0; // height of cell 1, in cm
724 height2 = 3.2; // height of cell 2, in cm
725 height3 = 4.9; // height of cell 3, in cm
726 height4 = 7.5; // height of cell 4, in cm
727 height5 = 12.0; // height of cell 5, in cm
47890cd3 728
61874e87 729 theta = pi/6.0/2.0;
47890cd3 730 half_thick_alu = 0.0025;
731 thick_alu = 2.0 * half_thick_alu;
732 half_thick_qua1 = fThickness1/2.0;
733 half_thick_qua2 = half_thick_qua1 - 0.25;
734 half_thick_qua3 = half_thick_qua2 - 0.25;
735 half_thick_qua4 = half_thick_qua3 - 0.25;
736 half_thick_qua5 = half_thick_qua4 - 0.25;
737
738 zdet = 86.9 +fThickness/2.0;
61874e87 739 r0 = 4.0;
47890cd3 740 height = height1 + height2 + height3 + height4 + height5;
741 r5 = r0 + height;
742
743 Float_t partube[3];
744
745 partube[0] = r0 - 0.2;
746 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
747 partube[2] = fThickness/2.0;
748
749 TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
750
751 Top->cd();
752
753 V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
754
755 V0Rnode->SetLineColor(kBlue);
756 fNodes->Add(V0Rnode);
757
758 V0Rnode->SetVisibility(2);
61874e87 759
47890cd3 760
761// Rondelles de carbone (epaisseur 1 mm) de maintien des cellules ...
762
763
764 Float_t parbox[10];
765
766 parbox[0] = 0.;
767 parbox[1] = 360.;
61874e87 768 parbox[2] = 12;
47890cd3 769 parbox[3] = 2;
770 parbox[4] = -0.1/2.0;
771 parbox[5] = r0;
772 parbox[6] = r5;
773 parbox[7] = +0.1/2.0;
774 parbox[8] = r0;
775 parbox[9] = r5;
776
777
778 TPGON *V0CA = new TPGON("V0CA", "V0CA", "void",parbox[0], parbox[1],
779 parbox[2],parbox[3]);
780
781 V0CA->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
782 V0CA->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
783
784 V0Rnode->cd();
785 V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-parbox[7],0);
786 V0Rnode6->SetLineColor(kYellow);
787 fNodes->Add(V0Rnode6);
788 V0Rnode->cd();
789 V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+parbox[7],0);
790 V0Rnode7->SetLineColor(kYellow);
791 fNodes->Add(V0Rnode7);
792
793 parbox[4] = -fThickness/2.0;
794 parbox[5] = r0 - 0.2;
795 parbox[6] = r0;
796 parbox[7] = +fThickness/2.0;
797 parbox[8] = r0 - 0.2;
798 parbox[9] = r0;
799
800 TPGON *V0IR = new TPGON("V0IR","V0IR","void", parbox[0], parbox[1],
801 parbox[2],parbox[3]);
802 V0IR->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
803 V0IR->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
804
805 V0Rnode->cd();
806 V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
807 V0Rnode8->SetLineColor(kYellow);
808 fNodes->Add(V0Rnode8);
809
810 parbox[4] = -fThickness/2.0;
811 parbox[5] = r5;
812 parbox[6] = r5 + 1.0;
813 parbox[7] = +fThickness/2.0;
814 parbox[8] = r5;
815 parbox[9] = r5 + 1.0;
816
817 TPGON *V0ER = new TPGON("V0ER","V0ER","void", parbox[0], parbox[1],
818 parbox[2],parbox[3]);
819 V0ER->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
820 V0ER->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
821
822 V0Rnode->cd();
823 V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
824 V0Rnode9->SetLineColor(kYellow);
825 fNodes->Add(V0Rnode9);
826
827 Float_t dist0;
828 Float_t par[11];
829
830 dist0 = r0 + height / 2.0;
831 thick_alu = 2.0*half_thick_alu;
832
833 par[0] = half_thick_qua1;
834 par[1] = 0.0;
835 par[2] = 0.0;
836 par[3] = height / 2.0 ;
837 par[4] = TMath::Tan(theta) * r0;
838 par[5] = TMath::Tan(theta) * r5;
839 par[6] = 0.0;
840 par[7] = height / 2.0 ;
841 par[8] = TMath::Tan(theta) * r0;
842 par[9] = TMath::Tan(theta) * r5;
843 par[10] = 0.0;
844
845 TTRAP *V0R0 = new TTRAP("V0R0", "V0R0", "void", par[0], par[1], par[2], par[3],
846 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
847
848 Float_t dist1;
849 Float_t r1;
850 Float_t offset;
851
852 dist1 = (- height + height1) /2.0;
853 r1 = r0 + height1;
854 offset = - fThickness/2.0 + 0.1;
855
856 par[0] = half_thick_qua1 - thick_alu;
857 par[3] = height1 / 2.0 - thick_alu;
858 par[4] = TMath::Tan(theta) * r0 - thick_alu;
859 par[5] = TMath::Tan(theta) * r1- thick_alu;
860 par[7] = height1 / 2.0 - thick_alu;
861 par[8] = TMath::Tan(theta) * r0 - thick_alu;
862 par[9] = TMath::Tan(theta) * r1 - thick_alu;
863
864 TTRAP *V0R1 = new TTRAP("V0R1", "V0R1", "void", par[0], par[1], par[2], par[3],
865 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
866
867
868 Float_t dist2;
869 Float_t r2;
870
871 dist2 = (- height + height2) /2.0 + height1;
872 r2 = r1 + height2;
873
874 par[0] = half_thick_qua2 - thick_alu;
875 par[3] = height2 / 2.0 - thick_alu;
876 par[4] = TMath::Tan(theta) * r1 - thick_alu;
877 par[5] = TMath::Tan(theta) * r2 - thick_alu;
878 par[7] = height2 / 2.0 - thick_alu;
879 par[8] = TMath::Tan(theta) * r1 - thick_alu;
880 par[9] = TMath::Tan(theta) * r2 - thick_alu;
881
882
883 TTRAP *V0R2 = new TTRAP("V0R2", "V0R2", "void", par[0], par[1], par[2], par[3],
884 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
885
886
887 Float_t dist3;
888 Float_t r3;
889
890 dist3 = (- height + height3) /2.0 + height1 + height2;
891 r3 = r2 + height3;
892
893 par[0] = half_thick_qua3 - thick_alu;
894 par[3] = height3 / 2.0 - thick_alu;
895 par[4] = TMath::Tan(theta) * r2 - thick_alu;
896 par[5] = TMath::Tan(theta) * r3 - thick_alu;
897 par[7] = height3 / 2.0 - thick_alu;
898 par[8] = TMath::Tan(theta) * r2 - thick_alu;
899 par[9] = TMath::Tan(theta) * r3 - thick_alu;
900
901
902 TTRAP *V0R3 = new TTRAP("V0R3", "V0R3", "void", par[0], par[1], par[2], par[3],
903 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
904
905
906 Float_t dist4;
907 Float_t r4;
908
909 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
910 r4 = r3 + height4;
911
912 par[0] = half_thick_qua4 - thick_alu;
913 par[3] = height4 / 2.0 - thick_alu;
914 par[4] = TMath::Tan(theta) * r3 - thick_alu;
915 par[5] = TMath::Tan(theta) * r4 - thick_alu;
916 par[7] = height4 / 2.0 - thick_alu;
917 par[8] = TMath::Tan(theta) * r3 - thick_alu;
918 par[9] = TMath::Tan(theta) * r4 - thick_alu;
919
920
921 TTRAP *V0R4 = new TTRAP("V0R4", "V0R4", "void", par[0], par[1], par[2], par[3],
922 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
923
924
925 Float_t dist5;
926
927 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
928
929 par[0] = half_thick_qua5 - thick_alu;
930 par[3] = height5 / 2.0 - thick_alu;
931 par[4] = TMath::Tan(theta) * r4 - thick_alu;
932 par[5] = TMath::Tan(theta) * r5 - thick_alu;
933 par[7] = height5 / 2.0 - thick_alu;
934 par[8] = TMath::Tan(theta) * r4 - thick_alu;
935 par[9] = TMath::Tan(theta) * r5 - thick_alu;
936
937
938 TTRAP *V0R5 = new TTRAP("V0R5", "V0R5", "void", par[0], par[1], par[2], par[3],
939 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
940
941
942 Float_t phi;
61874e87 943 Float_t phi_deg= 180./6.;
47890cd3 944 Float_t phi_rad;
945 Float_t xdet,ydet;
61874e87 946 Int_t n_detec_R = 1;
947
47890cd3 948 char NameNode[12];
949
950
61874e87 951 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
47890cd3 952 {
953
954 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
955
956 phi_rad = phi*pi/180.;
957 xdet = dist0*TMath::Sin(phi_rad);
958 ydet = dist0*TMath::Cos(phi_rad);
959
960
61874e87 961 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 962
963 V0Rnode->cd();
964 V0Rnode0 = new TNode(NameNode,NameNode,V0R0,-xdet,ydet, offset + half_thick_qua1,mat920);
965 V0Rnode0->SetLineColor(kColorVZERO);
966 fNodes->Add(V0Rnode0);
61874e87 967 n_detec_R++;
47890cd3 968
61874e87 969 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 970 V0Rnode0->cd();
971 V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,dist1, 0.0,0);
972 V0Rnode1->SetLineColor(kColorVZERO);
973 fNodes->Add(V0Rnode1);
61874e87 974 n_detec_R++;
47890cd3 975
61874e87 976 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 977 V0Rnode0->cd();
978 V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,dist2, - half_thick_qua1 + half_thick_qua2,0);
979 V0Rnode2->SetLineColor(kColorVZERO);
980 fNodes->Add(V0Rnode2);
61874e87 981 n_detec_R++;
47890cd3 982
983
61874e87 984 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 985 V0Rnode0->cd();
986 V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,dist3, - half_thick_qua1 + half_thick_qua3,0);
987 V0Rnode3->SetLineColor(kColorVZERO);
988 fNodes->Add(V0Rnode3);
61874e87 989 n_detec_R++;
47890cd3 990
61874e87 991 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 992 V0Rnode0->cd();
993 V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,dist4, - half_thick_qua1 + half_thick_qua4,0);
994 V0Rnode4->SetLineColor(kColorVZERO);
995 fNodes->Add(V0Rnode4);
61874e87 996 n_detec_R++;
47890cd3 997
61874e87 998 sprintf(NameNode,"SUBDER%d",n_detec_R);
47890cd3 999 V0Rnode0->cd();
1000 V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,dist5, - half_thick_qua1 + half_thick_qua5,0);
1001 V0Rnode5->SetLineColor(kColorVZERO);
1002 fNodes->Add(V0Rnode5);
61874e87 1003 n_detec_R++;
47890cd3 1004
1005 V0Rnode0->SetVisibility(2);
1006
1007 }
47890cd3 1008
47890cd3 1009
61874e87 1010// Left side of VZERO :
47890cd3 1011
47890cd3 1012
61874e87 1013 Float_t dist0_left;
1014 Float_t r0_left = 4.3;
1015 Float_t height1_left = 2.6;
1016 Float_t height2_left = 4.1;
1017 Float_t height3_left = 6.4;
1018 Float_t height4_left = 10.2;
1019 Float_t height5_left = 16.9;
1020 Float_t height_left = height1_left + height2_left + height3_left
1021 + height4_left + height5_left;
1022 Float_t r5_left = r0_left + height_left;
47890cd3 1023
61874e87 1024 partube[0] = r0_left;
1025 partube[1] = (r5_left) / TMath::Cos(theta);
1026 partube[2] = fThickness1/2.0;
47890cd3 1027
61874e87 1028 TTUBE *V0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
1029
1030 Top->cd();
1031
1032 V0Lnode = new TNode("V0LE","V0LE",V0LE,0.0,0.0,-350.0-fThickness1/2.0,0);
1033
1034 V0Lnode->SetLineColor(kBlue);
1035 fNodes->Add(V0Lnode);
1036
1037 V0Lnode->SetVisibility(2);
1038
1039 dist0_left = r0_left + height_left / 2.0;
1040 thick_alu = 2.0*half_thick_alu;
1041
1042 par[0] = half_thick_qua1;
1043 par[1] = 0.0;
1044 par[2] = 0.0;
1045 par[3] = height_left / 2.0 ;
1046 par[4] = TMath::Tan(theta) * r0_left;
1047 par[5] = TMath::Tan(theta) * r5_left;
1048 par[6] = 0.0;
1049 par[7] = height_left / 2.0 ;
1050 par[8] = TMath::Tan(theta) * r0_left;
1051 par[9] = TMath::Tan(theta) * r5_left;
1052 par[10] = 0.0;
1053
1054 TTRAP *V0L0 = new TTRAP("V0L0", "V0L0", "void", par[0], par[1], par[2], par[3],
1055 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1056
1057
1058 Float_t dist1_left;
1059 Float_t r1_left;
1060 Float_t offset_left;
1061
1062 dist1_left = (- height_left + height1_left) /2.0;
1063 r1_left = r0_left + height1_left;
1064 offset_left = - fThickness1/2.0 + 0.1;
1065
1066 par[0] = half_thick_qua1 - thick_alu;
1067 par[3] = height1_left / 2.0 - thick_alu;
1068 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
1069 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
1070 par[7] = height1_left / 2.0 - thick_alu;
1071 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
1072 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
1073
1074 TTRAP *V0L1 = new TTRAP("V0L1", "V0L1", "void", par[0], par[1], par[2], par[3],
1075 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
47890cd3 1076
61874e87 1077 Float_t dist2_left;
1078 Float_t r2_left;
47890cd3 1079
61874e87 1080 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
1081 r2_left = r1_left + height2_left;
1082
1083 par[0] = half_thick_qua1 - thick_alu;
1084 par[3] = height2_left / 2.0 - thick_alu;
1085 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
1086 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
1087 par[7] = height2_left / 2.0 - thick_alu;
1088 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
1089 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
47890cd3 1090
61874e87 1091 TTRAP *V0L2 = new TTRAP("V0L2", "V0L2", "void", par[0], par[1], par[2], par[3],
1092 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
47890cd3 1093
47890cd3 1094
61874e87 1095
1096 Float_t dist3_left;
1097 Float_t r3_left;
1098
1099 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
1100 r3_left = r2_left + height3_left;
1101
1102 par[0] = half_thick_qua1 - thick_alu;
1103 par[3] = height3_left / 2.0 - thick_alu;
1104 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
1105 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
1106 par[7] = height3_left / 2.0 - thick_alu;
1107 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
1108 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
1109
1110 TTRAP *V0L3 = new TTRAP("V0L3", "V0L3", "void", par[0], par[1], par[2], par[3],
1111 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1112
1113
1114 Float_t dist4_left;
1115 Float_t r4_left;
1116
1117 dist4_left = (- height_left + height4_left) /2.0 + height1_left
1118 + height2_left + height3_left;
1119 r4_left = r3_left + height4_left;
1120
1121 par[0] = half_thick_qua1 - thick_alu;
1122 par[3] = height4_left / 2.0 - thick_alu;
1123 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
1124 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
1125 par[7] = height4_left / 2.0 - thick_alu;
1126 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
1127 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
1128
1129 TTRAP *V0L4 = new TTRAP("V0L4", "V0L4", "void", par[0], par[1], par[2], par[3],
1130 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1131
47890cd3 1132
61874e87 1133 Float_t dist5_left;
47890cd3 1134
61874e87 1135
1136 dist5_left = (- height_left + height5_left) /2.0 + height1_left
1137 + height2_left + height3_left + height4_left;
47890cd3 1138
61874e87 1139
1140 par[0] = half_thick_qua1 - thick_alu;
1141 par[3] = height5_left / 2.0 - thick_alu;
1142 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
1143 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
1144 par[7] = height5_left / 2.0 - thick_alu;
1145 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
1146 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
1147
1148 TTRAP *V0L5 = new TTRAP("V0L5", "V0L5", "void", par[0], par[1], par[2], par[3],
1149 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
47890cd3 1150
47890cd3 1151
61874e87 1152 Int_t n_detec_L = 1;
1153
1154 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
1155 {
47890cd3 1156
61874e87 1157 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
47890cd3 1158
61874e87 1159 phi_rad = phi*pi/180.;
1160 xdet = dist0_left*TMath::Sin(phi_rad);
1161 ydet = dist0_left*TMath::Cos(phi_rad);
1162
1163
1164 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1165
1166 V0Lnode->cd();
1167 V0Lnode0 = new TNode(NameNode,NameNode,V0L0,-xdet,ydet, offset_left + half_thick_qua1,mat920);
1168 V0Lnode0->SetLineColor(kColorVZERO);
1169 fNodes->Add(V0Lnode0);
1170 n_detec_L++;
1171
1172 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1173 V0Lnode0->cd();
1174 V0Lnode1 = new TNode(NameNode,NameNode,V0L1,0.0,dist1_left, 0.0,0);
1175 V0Lnode1->SetLineColor(kColorVZERO);
1176 fNodes->Add(V0Lnode1);
1177 n_detec_L++;
1178
1179 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1180 V0Lnode0->cd();
1181 V0Lnode2 = new TNode(NameNode,NameNode,V0L2,0.0,dist2_left, 0.0,0);
1182 V0Lnode2->SetLineColor(kColorVZERO);
1183 fNodes->Add(V0Lnode2);
1184 n_detec_L++;
1185
1186
1187 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1188 V0Lnode0->cd();
1189 V0Lnode3 = new TNode(NameNode,NameNode,V0L3,0.0,dist3_left, 0.0,0);
1190 V0Lnode3->SetLineColor(kColorVZERO);
1191 fNodes->Add(V0Lnode3);
1192 n_detec_L++;
1193
1194 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1195 V0Lnode0->cd();
1196 V0Lnode4 = new TNode(NameNode,NameNode,V0L4,0.0,dist4_left, 0.0,0);
1197 V0Lnode4->SetLineColor(kColorVZERO);
1198 fNodes->Add(V0Lnode4);
1199 n_detec_L++;
47890cd3 1200
61874e87 1201 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1202 V0Lnode0->cd();
1203 V0Lnode5 = new TNode(NameNode,NameNode,V0L5,0.0,dist5_left, 0.0,0);
1204 V0Lnode5->SetLineColor(kColorVZERO);
1205 fNodes->Add(V0Lnode5);
1206 n_detec_L++;
47890cd3 1207
61874e87 1208 V0Lnode0->SetVisibility(2);
47890cd3 1209
61874e87 1210 }
47890cd3 1211
61874e87 1212
1213}
47890cd3 1214
1215
1216//------------------------------------------------------------------------
1217void AliVZEROv0::CreateMaterials()
1218{
61874e87 1219 Int_t i;
47890cd3 1220
61874e87 1221 printf("\n");
1222 for(i=0;i<30;i++) printf("*");
1223 printf(" VZERO create materials ");
1224 for(i=0;i<30;i++) printf("*");
1225 printf("\n");
1226
47890cd3 1227
47890cd3 1228 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,
1229 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
61874e87 1230
1231
1232 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,
1233 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
47890cd3 1234
1235 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
1236 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
61874e87 1237 1.662295, 1.68337 };
47890cd3 1238
1239 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
1240 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
1241
1242 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1243
1244
1245 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
61874e87 1246
1247
47890cd3 1248 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,
1249 1e-4,1e-4,1e-4,1e-4 };
1250 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
61874e87 1251
47890cd3 1252
1253 Int_t *idtmed = fIdtmed->GetArray()-2999;
1254
1255 TGeant3 *geant3 = (TGeant3*) gMC;
1256
1257// Parameters related to Quarz (SiO2) :
1258
1259 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
1260 Int_t nlmatqua;
1261
1262 aqua[0] = 28.09;
1263 aqua[1] = 16.;
1264 zqua[0] = 14.;
1265 zqua[1] = 8.;
1266 densqua = 2.64;
1267 nlmatqua = -2;
1268 wmatqua[0] = 1.;
1269 wmatqua[1] = 2.;
1270
1271// Parameters related to aluminum sheets :
1272
1273 Float_t aal = 26.98;
1274 Float_t zal = 13.00;
1275 Float_t densal= 2.7;
1276 Float_t radlal= 8.9;
1277
1278// Parameters related to scintillator CH :
1279
1280 Float_t ascin[2] = {1.01,12.01};
1281 Float_t zscin[2] = {1,6};
1282 Float_t wscin[2] = {1,1};
1283 Float_t denscin = 1.03;
1284
1285// Definition of materials :
1286
61874e87 1287 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1288 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1289 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
47890cd3 1290 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
61874e87 1291 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
1292 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
47890cd3 1293
1294
1295 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
1296
1297
1298 Int_t ISXFLD = gAlice->Field()->Integ();
1299 Float_t SXMGMX = gAlice->Field()->Max();
1300
1301 Float_t tmaxfd, stemax, deemax, epsil, stmin;
1302
61874e87 1303 tmaxfd = 10.;
1304 stemax = 0.1;
1305 deemax = 0.1;
1306 epsil = 0.001;
1307 stmin = 0.001;
1308
1309 printf(" \n");
1310 printf(" StepQua, StepAlu = %f %f \n",fMaxStepQua,fMaxStepAlu);
1311 printf(" DeStepQua, DeStepAlu = %f %f \n",fMaxDestepQua,fMaxDestepAlu);
1312 printf(" \n");
1313
47890cd3 1314
1315// Active Air :
61874e87 1316 AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX,
1317 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
47890cd3 1318
1319// Inactive air :
1320
61874e87 1321 AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX,
1322 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
47890cd3 1323
61874e87 1324 AliMedium(2, "CARBON$ ", 2, 1, ISXFLD, SXMGMX,
1325 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
47890cd3 1326
61874e87 1327 AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX,
1328 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
47890cd3 1329
61874e87 1330 AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX,
1331 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1332
1333
1334 AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX,
1335 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1336
1337 AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003, 0, 0);
47890cd3 1338
1339 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
1340 gMC->Gstpar(idtmed[3000], "HADR", 1.);
1341 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
1342 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
1343
1344 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
1345 gMC->Gstpar(idtmed[3001], "HADR", 1.);
1346 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
1347 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
1348
1349 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
1350 gMC->Gstpar(idtmed[3002], "HADR", 1.);
1351 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
61874e87 1352 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
1353 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
1354 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
47890cd3 1355
1356 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
1357 gMC->Gstpar(idtmed[3003], "HADR", 1.);
1358 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
1359 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
1360
1361 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
1362 gMC->Gstpar(idtmed[3004], "HADR", 1.);
1363 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
1364 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
61874e87 1365 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
1366 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
47890cd3 1367
1368 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
1369 gMC->Gstpar(idtmed[3005], "HADR", 1.);
1370 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
1371 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
1372
61874e87 1373 geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
1374 geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
47890cd3 1375
61874e87 1376
47890cd3 1377}
1378//---------------------------------------------------------------------
1379void AliVZEROv0::DrawModule()
1380{
1381
1382// Drawing is done in DrawVZERO.C
1383
1384 Int_t i;
1385
1386 printf("\n");
61874e87 1387 for(i=0;i<30;i++) printf("*");
47890cd3 1388 printf(" VZERO DrawModule ");
61874e87 1389 for(i=0;i<30;i++) printf("*");
47890cd3 1390 printf("\n");
1391
1392
1393}
1394
1395//-------------------------------------------------------------------
1396void AliVZEROv0::Init()
1397{
1398// Initialises version 0 of the VZERO Detector
1399// Just prints an information message
1400
61874e87 1401 printf(" VZERO version %d initialized \n",IsVersion());
47890cd3 1402
61874e87 1403// gMC->SetMaxStep(fMaxStepAlu);
1404// gMC->SetMaxStep(fMaxStepQua);
1405
1406// AliVZERO::Init();
1407
47890cd3 1408}
1409
1410//-------------------------------------------------------------------
1411
1412void AliVZEROv0::StepManager()
1413{
1414
61874e87 1415// (Very)Minimal version of StepManager
1416
1417
1418 Int_t copy;
1419 static Int_t vol[4];
1420 static Float_t hits[15];
47890cd3 1421
1422 TLorentzVector pos;
47890cd3 1423
61874e87 1424 TLorentzVector mom;
47890cd3 1425 Float_t theta;
1426 Float_t phi;
47890cd3 1427 Float_t kRaddeg = 180/TMath::Pi();
61874e87 1428 Float_t RingNumber;
1429
1430 Int_t ipart;
47890cd3 1431
61874e87 1432
1433// TGeant3 *geant3 = (TGeant3*) gMC;
1434// Int_t Nphot = geant3->Gckin2()->ngphot;
47890cd3 1435
61874e87 1436
1437// Only charged tracks :
47890cd3 1438
61874e87 1439 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
1440
1441
47890cd3 1442 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
1443 vol[2] = gMC->CurrentVolID(copy);
1444 vol[3] = copy;
1445
61874e87 1446 if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
1447 gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
1448 RingNumber = 1.0;
1449 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
1450 gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
1451 RingNumber = 2.0;
1452 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
1453 gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
1454 RingNumber = 3.0;
1455 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
1456 gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
1457 RingNumber = 4.0;
1458 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
1459 gMC->CurrentVolID(copy) == gMC->VolId("V0L5") )
1460 RingNumber = 5.0;
1461 else
1462 RingNumber = 0.0;
1463
1464 if (gMC->IsTrackEntering() && RingNumber > 0.5) {
1465
1466 gMC->TrackPosition(pos);
1467
1468 gMC->TrackMomentum(mom);
1469 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1470 Double_t Pt = TMath::Sqrt(tc);
1471 Double_t Pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
47890cd3 1472
61874e87 1473 theta = Float_t(TMath::ATan2(Pt,Double_t(mom[2])))*kRaddeg;
1474 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1475
1476 ipart = gMC->TrackPid();
1477
1478 hits[0] = pos[0];
1479 hits[1] = pos[1];
1480 hits[2] = pos[2];
1481 hits[3] = ipart;
1482
1483// Float_t ttime = gMC->TrackTime();
1484// hits[4] = ttime*1e9;
1485
1486 hits[4] = gMC->TrackTime();
1487 hits[5] = gMC->TrackCharge();
1488 hits[6] = theta;
1489 hits[7] = phi;
1490 hits[8] = RingNumber;
1491
1492 hits[9] = Pt;
1493 hits[10] = Pmom;
1494 hits[11] = mom[0];
1495 hits[12] = mom[1];
1496 hits[13] = mom[2];
1497
1498
1499 AddHit(gAlice->CurrentTrack(), vol, hits);
1500
1501 }
1502
47890cd3 1503}
1504
61874e87 1505//_____________________________________________________________________________
1506void AliVZEROv0::AddHit(Int_t track, Int_t *vol, Float_t *hits)
47890cd3 1507{
61874e87 1508 //
1509 // Add a VZERO hit
1510 //
47890cd3 1511
61874e87 1512 TClonesArray &lhits = *fHits;
1513 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
47890cd3 1514}
1515
1516//---------------------------------------------------------------------
61874e87 1517void AliVZEROv0::AddDigits(Int_t *tracks, Int_t* digits)
47890cd3 1518{
1519
1520 TClonesArray &ldigits = *fDigits;
47890cd3 1521 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
47890cd3 1522}
1523
47890cd3 1524//---------------------------------------------------------------------
1525void AliVZEROv0::MakeBranch(Option_t *option)
1526{
1527
1528 // Creates new branches in the current Root Tree
1529
1530
1531 char branchname[10];
1532 sprintf(branchname,"%s",GetName());
61874e87 1533 printf(" fBufferSize = %d \n",fBufferSize);
47890cd3 1534
1535 char *H = strstr(option,"H");
1536
1537 if (fHits && gAlice->TreeH() && H) {
1538 gAlice->TreeH()->Branch(branchname,&fHits, fBufferSize);
1539 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1540 }
1541
1542 char *D = strstr(option,"D");
1543 //
1544 if (fDigits && gAlice->TreeD() && D) {
1545 gAlice->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1546 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
61874e87 1547 }
1548
47890cd3 1549}