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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
17
18//////////////////////////////////////////////////////////////////////
19// //
20// (V-zero) detector version 0 as designed by the Lyon group //
21// All comments should be sent to Brigitte CHEYNIS : //
22// b.cheynis@ipnl.in2p3.fr //
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"
46#include "AliMC.h"
47#include "AliVZEROhit.h"
48#include "AliVZEROdigit.h"
49#include <iostream.h>
50#include <fstream.h>
51
52#include <TGeant3.h>
53#include <stdlib.h>
54#include "TObjectTable.h"
55
56#include "AliConst.h"
57#include "ABSOSHILConst.h"
58#include "ABSOConst.h"
59
60ClassImp(AliVZEROv0)
61
62//--------------------------------------------------------------------
63AliVZEROv0:: AliVZEROv0():AliVZERO()
64{
2685bf00 65 fRootFile = 0;
66 fhMultiplicity = 0;
67 fhGEANTcode = 0;
68 fhCerenkov = 0;
69 fhToF = 0;
47890cd3 70}
71//--------------------------------------------------------------------
72AliVZEROv0::AliVZEROv0(const char *name, const char *title):
73 AliVZERO(name,title)
74{
75
76// Standard constructor for V-zeroR Detector (right part) version 0
77
78
79 Int_t i;
80
81 printf("\n");
82 for(i=0;i<35;i++) printf("*");
83 printf(" create VZERO object");
84 for(i=0;i<35;i++) printf("*");
85 printf("\n");
86
87}
88//-------------------------------------------------------------------------
89void AliVZEROv0::CreateGeometry()
90{
91
92// Creates the Geant geometry of the V-zeroR Detector (right part) version 0
93
94
95 Int_t i;
96
97 printf("\n");
98 for(i=0;i<35;i++) printf("*");
99 printf(" VZERO Create Geometry ");
100 for(i=0;i<35;i++) printf("*");
101 printf("\n");
102
103
104 Int_t *idtmed = fIdtmed->GetArray()-2999;
105
106 Int_t n_detec = 1;
107 Int_t n_cells = 1;
108
109 Int_t idrotm[999];
110
111 Float_t height1, height2, height3, height4, height5;
112 Float_t height;
113 Float_t theta;
114 Float_t half_thick_alu;
115 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
116 Float_t half_thick_qua4,half_thick_qua5;
117 Float_t zdet;
118 Float_t r0, r5;
119 Float_t pi = TMath::Pi();
120 Float_t thick_alu;
121
122 height1 = 2.3; // height of cell 1, in cm
123 height2 = 3.7; // height of cell 2, in cm
124 height3 = 6.2; // height of cell 3, in cm
125 height4 = 10.5; // height of cell 4, in cm
126 height5 = 10.5; // height of cell 5, in cm
127
128 theta = pi/12.0/2.0; // half angular opening = 7.5 degrees
129 half_thick_alu = 0.0025; // half thickness of aluminum foil, in cm
130 thick_alu = 2.0 * half_thick_alu;
131 half_thick_qua1 = fThickness1/2.0; // half thickness of WRAPPED quartz cell (inner ring)
132 half_thick_qua2 = half_thick_qua1 - 0.25;
133 half_thick_qua3 = half_thick_qua2 - 0.25;
134 half_thick_qua4 = half_thick_qua3 - 0.25;
135 half_thick_qua5 = half_thick_qua4 - 0.25;
136
137 zdet = 86.9 +fThickness/2.0; // distance to vertex (along Z axis)
138 r0 = 3.4; // closest distance to center of the beam pipe
139 height = height1 + height2 + height3 + height4 + height5;
140 r5 = r0 + height;
141
142
143// Creation of mother volume V0RI :
144
145 Float_t partube[3];
146
147 partube[0] = r0 - 0.2;
148 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
149 partube[2] = fThickness/2.0;
150
151
152 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
153
154// Creation of carbon lids (1 mm thick) to keep V0RI box shut...
155
156 Float_t parbox[10];
157
158 parbox[0] = 0.;
159 parbox[1] = 360.;
160 parbox[2] = 24;
161 parbox[3] = 2;
162 parbox[4] = -0.1/2.0;
163 parbox[5] = r0;
164 parbox[6] = r5;
165 parbox[7] = +0.1/2.0;
166 parbox[8] = r0;
167 parbox[9] = r5;
168
169
170 gMC->Gsvolu("V0CA","PGON",idtmed[3001],parbox,10);
171 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-parbox[7],0,"ONLY");
172 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+parbox[7],0,"ONLY");
173
174// Creation of aluminum rings to maintain the V0RI pieces ...
175
176 parbox[4] = -fThickness/2.0;
177 parbox[5] = r0 -0.2;
178 parbox[6] = r0;
179 parbox[7] = +fThickness/2.0;
180 parbox[8] = r0 -0.2;
181 parbox[9] = r0;
182
183 gMC->Gsvolu("V0IR","PGON",idtmed[3003],parbox,10);
184 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
185
186 parbox[4] = -fThickness/2.0;
187 parbox[5] = r5;
188 parbox[6] = r5 + 1.0;
189 parbox[7] = +fThickness/2.0;
190 parbox[8] = r5;
191 parbox[9] = r5 + 1.0;
192
193 gMC->Gsvolu("V0ER","PGON",idtmed[3003],parbox,10);
194 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
195
196// Mother volume V0R0 in which will be set 5 quartz cells
197// each one WRAPPED in reflecting aluminum :
198
199 Float_t dist0;
200 Float_t par[11];
201
202 dist0 = r0 + height / 2.0;
203 thick_alu = 2.0*half_thick_alu;
204
205 par[0] = half_thick_qua1;
206 par[1] = 0.0;
207 par[2] = 0.0;
208 par[3] = height / 2.0 ;
209 par[4] = TMath::Tan(theta) * r0;
210 par[5] = TMath::Tan(theta) * r5;
211 par[6] = 0.0;
212 par[7] = height / 2.0 ;
213 par[8] = TMath::Tan(theta) * r0;
214 par[9] = TMath::Tan(theta) * r5;
215 par[10] = 0.0;
216
217
218 gMC->Gsvolu("V0R0","TRAP",idtmed[3010],par,11); // air volume
219
220// Elementary cell of ring 1 :
221
222 Float_t dist1;
223 Float_t r1;
224 Float_t offset;
225
226 dist1 = (- height + height1) /2.0;
227 r1 = r0 + height1;
228 offset = - fThickness/2.0 + 0.1;
229
230 par[0] = half_thick_qua1 - thick_alu;
231 par[3] = height1 / 2.0 - thick_alu;
232 par[4] = TMath::Tan(theta) * r0 - thick_alu;
233 par[5] = TMath::Tan(theta) * r1- thick_alu;
234 par[7] = height1 / 2.0 - thick_alu;
235 par[8] = TMath::Tan(theta) * r0 - thick_alu;
236 par[9] = TMath::Tan(theta) * r1 - thick_alu;
237
238
239 gMC->Gsvolu("V0R1","TRAP",idtmed[3002],par,11); // quartz volume
240 gMC->Gspos("V0R1",1,"V0R0", 0.0, dist1 , 0.0, 0,"ONLY");
241
242 par[0] = half_thick_alu;
243
244 gMC->Gsvolu("V0A1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
245 gMC->Gspos("V0A1",1,"V0R1",0.0,0.0, - half_thick_qua1 + half_thick_alu,0,"ONLY");
246 gMC->Gspos("V0A1",2,"V0R1",0.0,0.0, + half_thick_qua1 - half_thick_alu,0,"ONLY");
247
248 parbox[0] = half_thick_alu;
249 parbox[1] = height1 / TMath::Cos(theta)/ 2.0;
250 parbox[2] = half_thick_qua1;
251
252 gMC->Gsvolu("V0A2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
253 Float_t theta_deg = 180./12./2.0;
254 Float_t h1;
255 h1 = TMath::Tan(theta) * (r0 + height1/2.0);
256 AliMatrix(idrotm[911],90.0,+theta_deg,90.0,90.+theta_deg,0.0,0.);
257 gMC->Gspos("V0A2",1,"V0R1",-h1 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
258 AliMatrix(idrotm[912],90.0,-theta_deg,90.0,90.-theta_deg,0.0,0.);
259 gMC->Gspos("V0A2",2,"V0R1",+h1 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
260
261 parbox[0] = TMath::Tan(theta) * r0;
262 parbox[1] = half_thick_alu;
263 parbox[2] = half_thick_qua1;
264 gMC->Gsvolu("V0A3","BOX",idtmed[3004],parbox,3);
265 gMC->Gspos("V0A3",1,"V0R1",0.0, - (height1/2.0) + half_thick_alu ,0.0,0,"ONLY");
266
267
268 parbox[0] = TMath::Tan(theta) * (r0 + height1);
269 parbox[1] = half_thick_alu;
270 parbox[2] = half_thick_qua1;
271 gMC->Gsvolu("V0A4","BOX",idtmed[3004],parbox,3);
272 gMC->Gspos("V0A4",1,"V0R1",0.0, (height1/2.0) - half_thick_alu,0.0,0,"ONLY");
273
274
275// Elementary cell of ring 2 :
276
277 Float_t dist2;
278 Float_t r2;
279
280 dist2 = (- height + height2) /2.0 + height1;
281 r2 = r1 + height2;
282
283 par[0] = half_thick_qua2 - thick_alu;
284 par[3] = height2 / 2.0 - thick_alu;
285 par[4] = TMath::Tan(theta) * r1 - thick_alu;
286 par[5] = TMath::Tan(theta) * r2 - thick_alu;
287 par[7] = height2 / 2.0 - thick_alu;
288 par[8] = TMath::Tan(theta) * r1 - thick_alu;
289 par[9] = TMath::Tan(theta) * r2 - thick_alu;
290
291 gMC->Gsvolu("V0R2","TRAP",idtmed[3002],par,11); // quartz volume
292 gMC->Gspos("V0R2",1,"V0R0", 0.0, dist2 , - half_thick_qua1 + half_thick_qua2, 0,"ONLY");
293
294 par[0] = half_thick_alu;
295
296 gMC->Gsvolu("V0B1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
297 gMC->Gspos("V0B1",1,"V0R2",0.0,0.0, - half_thick_qua2 + half_thick_alu,0,"ONLY");
298 gMC->Gspos("V0B1",2,"V0R2",0.0,0.0, + half_thick_qua2 - half_thick_alu,0,"ONLY");
299
300 parbox[0] = half_thick_alu;
301 parbox[1] = height2 / TMath::Cos(theta)/ 2.0;
302 parbox[2] = half_thick_qua2;
303
304 gMC->Gsvolu("V0B2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
305 Float_t h2;
306 h2 = TMath::Tan(theta) * (r0 + height1 + height2/2.0);
307 gMC->Gspos("V0B2",1,"V0R2",-h2 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
308 gMC->Gspos("V0B2",2,"V0R2",+h2 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
309
310 parbox[0] = TMath::Tan(theta) * (r0 + height1);
311 parbox[1] = half_thick_alu;
312 parbox[2] = half_thick_qua2;
313 gMC->Gsvolu("V0B3","BOX",idtmed[3004],parbox,3);
314 gMC->Gspos("V0B3",1,"V0R2",0.0, - (height2/2.0) + half_thick_alu ,0.0,0,"ONLY");
315
316
317 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
318 parbox[1] = half_thick_alu;
319 parbox[2] = half_thick_qua2;
320 gMC->Gsvolu("V0B4","BOX",idtmed[3004],parbox,3);
321 gMC->Gspos("V0B4",1,"V0R2",0.0, (height2/2.0) - half_thick_alu,0.0,0,"ONLY");
322
323
324// Elementary cell ring 3 :
325
326 Float_t dist3;
327 Float_t r3;
328
329 dist3 = (- height + height3) /2.0 + height1 + height2;
330 r3 = r2 + height3;
331
332 par[0] = half_thick_qua3 - thick_alu;
333 par[3] = height3 / 2.0 - thick_alu;
334 par[4] = TMath::Tan(theta) * r2 - thick_alu;
335 par[5] = TMath::Tan(theta) * r3 - thick_alu;
336 par[7] = height3 / 2.0 - thick_alu;
337 par[8] = TMath::Tan(theta) * r2 - thick_alu;
338 par[9] = TMath::Tan(theta) * r3 - thick_alu;
339
340 gMC->Gsvolu("V0R3","TRAP",idtmed[3002],par,11); // quartz volume
341 gMC->Gspos("V0R3",1,"V0R0", 0.0, dist3 , - half_thick_qua1 + half_thick_qua3, 0,"ONLY");
342
343
344 par[0] = half_thick_alu;
345
346 gMC->Gsvolu("V0C1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
347 gMC->Gspos("V0C1",1,"V0R3",0.0,0.0, - half_thick_qua3 + half_thick_alu,0,"ONLY");
348 gMC->Gspos("V0C1",2,"V0R3",0.0,0.0, + half_thick_qua3 - half_thick_alu,0,"ONLY");
349
350 parbox[0] = half_thick_alu;
351 parbox[1] = height3 / TMath::Cos(theta)/ 2.0;
352 parbox[2] = half_thick_qua3;
353
354 gMC->Gsvolu("V0C2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
355 Float_t h3;
356 h3 = TMath::Tan(theta) * (r0 + height1 + height2 + height3/2.0);
357 gMC->Gspos("V0C2",1,"V0R3",-h3 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
358 gMC->Gspos("V0C2",2,"V0R3",+h3 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
359
360 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
361 parbox[1] = half_thick_alu;
362 parbox[2] = half_thick_qua3;
363 gMC->Gsvolu("V0C3","BOX",idtmed[3004],parbox,3);
364 gMC->Gspos("V0C3",1,"V0R3",0.0, - (height3/2.0) + half_thick_alu ,0.0,0,"ONLY");
365
366
367 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
368 parbox[1] = half_thick_alu;
369 parbox[2] = half_thick_qua3;
370 gMC->Gsvolu("V0C4","BOX",idtmed[3004],parbox,3);
371 gMC->Gspos("V0C4",1,"V0R3",0.0, (height3/2.0) - half_thick_alu,0.0,0,"ONLY");
372
373
374// Elementary cell ring 4 :
375
376 Float_t dist4;
377 Float_t r4;
378
379 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
380 r4 = r3 + height4;
381
382 par[0] = half_thick_qua4 - thick_alu;
383 par[3] = height4 / 2.0 - thick_alu;
384 par[4] = TMath::Tan(theta) * r3 - thick_alu;
385 par[5] = TMath::Tan(theta) * r4 - thick_alu;
386 par[7] = height4 / 2.0 - thick_alu;
387 par[8] = TMath::Tan(theta) * r3 - thick_alu;
388 par[9] = TMath::Tan(theta) * r4 - thick_alu;
389
390 gMC->Gsvolu("V0R4","TRAP",idtmed[3002],par,11); // quartz volume
391 gMC->Gspos("V0R4",1,"V0R0", 0.0, dist4 , - half_thick_qua1 + half_thick_qua4, 0,"ONLY");
392
393
394 par[0] = half_thick_alu;
395
396 gMC->Gsvolu("V0D1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
397 gMC->Gspos("V0D1",1,"V0R4",0.0,0.0, - half_thick_qua4 + half_thick_alu,0,"ONLY");
398 gMC->Gspos("V0D1",2,"V0R4",0.0,0.0, + half_thick_qua4 - half_thick_alu,0,"ONLY");
399
400 parbox[0] = half_thick_alu;
401 parbox[1] = height4 / TMath::Cos(theta)/ 2.0;
402 parbox[2] = half_thick_qua4;
403
404 gMC->Gsvolu("V0D2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
405 Float_t h4;
406 h4 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4/2.0);
407 gMC->Gspos("V0D2",1,"V0R4",-h4 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
408 gMC->Gspos("V0D2",2,"V0R4",+h4 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
409
410 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
411 parbox[1] = half_thick_alu;
412 parbox[2] = half_thick_qua4;
413 gMC->Gsvolu("V0D3","BOX",idtmed[3004],parbox,3);
414 gMC->Gspos("V0D3",1,"V0R4",0.0, - (height4/2.0) + half_thick_alu ,0.0,0,"ONLY");
415
416
417 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
418 parbox[1] = half_thick_alu;
419 parbox[2] = half_thick_qua4;
420 gMC->Gsvolu("V0D4","BOX",idtmed[3004],parbox,3);
421 gMC->Gspos("V0D4",1,"V0R4",0.0, (height4/2.0) - half_thick_alu,0.0,0,"ONLY");
422
423
424// Elementary cell ring 5 :
425
426 Float_t dist5;
427
428 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
429
430 par[0] = half_thick_qua5 - thick_alu;
431 par[3] = height5 / 2.0 - thick_alu;
432 par[4] = TMath::Tan(theta) * r4 - thick_alu;
433 par[5] = TMath::Tan(theta) * r5 - thick_alu;
434 par[7] = height5 / 2.0 - thick_alu;
435 par[8] = TMath::Tan(theta) * r4 - thick_alu;
436 par[9] = TMath::Tan(theta) * r5 - thick_alu;
437
438 gMC->Gsvolu("V0R5","TRAP",idtmed[3002],par,11); // quartz volume
439 gMC->Gspos("V0R5",1,"V0R0", 0.0, dist5 , - half_thick_qua1 + half_thick_qua5, 0,"ONLY");
440
441
442 par[0] = half_thick_alu;
443
444 gMC->Gsvolu("V0E1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
445 gMC->Gspos("V0E1",1,"V0R5",0.0,0.0, - half_thick_qua5 + half_thick_alu,0,"ONLY");
446 gMC->Gspos("V0E1",2,"V0R5",0.0,0.0, + half_thick_qua5 - half_thick_alu,0,"ONLY");
447
448 parbox[0] = half_thick_alu;
449 parbox[1] = height5 / TMath::Cos(theta)/ 2.0;
450 parbox[2] = half_thick_qua5;
451
452 gMC->Gsvolu("V0E2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
453 Float_t h5;
454 h5 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4 + height5/2.0);
455 gMC->Gspos("V0E2",1,"V0R5",-h5 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
456 gMC->Gspos("V0E2",2,"V0R5",+h5 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
457
458 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
459 parbox[1] = half_thick_alu;
460 parbox[2] = half_thick_qua5;
461 gMC->Gsvolu("V0E3","BOX",idtmed[3004],parbox,3);
462 gMC->Gspos("V0E3",1,"V0R5",0.0, - (height5/2.0) + half_thick_alu ,0.0,0,"ONLY");
463
464
465 parbox[0] = TMath::Tan(theta) * r5;
466 parbox[1] = half_thick_alu;
467 parbox[2] = half_thick_qua5;
468 gMC->Gsvolu("V0E4","BOX",idtmed[3004],parbox,3);
469 gMC->Gspos("V0E4",1,"V0R5",0.0, (height5/2.0) - half_thick_alu,0.0,0,"ONLY");
470
471
472 Float_t phi_rad ;
473 Float_t phi_deg = 180./12.;
474
475
476 for(Float_t phi = 7.5; phi < 360.0; phi = phi + phi_deg)
477 {
478 phi_rad = phi*pi/180.;
479 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
480 gMC->Gspos("V0R0",n_detec,"V0RI",-dist0*TMath::Sin(phi_rad),
481 dist0*TMath::Cos(phi_rad),offset + half_thick_qua1,idrotm[902],"ONLY");
482 n_detec++;
483 }
484
485
486 gMC->Gspos("V0RI",1,"alic",0.0,0.0,zdet,0,"ONLY");
487
488 n_cells = (n_detec - 1) * 5;
489 printf(" \n\n\n");
490 printf(" Number of cells = %d\n\n", n_cells);
491
492}
493
494
495//_____________________________________________________________________________
496void AliVZEROv0::BuildGeometry()
497{
498
499 // Builds simple ROOT TNode geometry for event display
500
501
502 Int_t i;
503
504 printf("\n");
505 for(i=0;i<35;i++) printf("*");
506 printf(" VZERO BuildGeometry ");
507 for(i=0;i<35;i++) printf("*");
508 printf("\n");
509
510 TNode *Top, *Node0, *Node1, *Node2;
511 TNode *Node3, *Node4 , *Node5, *Node6 , *Node7;
512 TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
513 TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
514 const int kColorVZERO = kGreen;
515
516 Top = gAlice->GetGeometry()->GetNode("alice");
517
518 Float_t height1, height2, height3, height4, height5;
519 Float_t height;
520 Float_t theta;
521 Float_t half_thick_alu;
522 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
523 Float_t half_thick_qua4,half_thick_qua5;
524 Float_t zdet;
525 Float_t r0, r5;
526 Float_t pi = TMath::Pi();
527 Float_t thick_alu;
528
529 height1 = 2.3;
530 height2 = 3.7;
531 height3 = 6.2;
532 height4 = 10.5;
533 height5 = 10.5;
534
535 theta = pi/12.0/2.0;
536 half_thick_alu = 0.0025;
537 thick_alu = 2.0 * half_thick_alu;
538 half_thick_qua1 = fThickness1/2.0;
539 half_thick_qua2 = half_thick_qua1 - 0.25;
540 half_thick_qua3 = half_thick_qua2 - 0.25;
541 half_thick_qua4 = half_thick_qua3 - 0.25;
542 half_thick_qua5 = half_thick_qua4 - 0.25;
543
544 zdet = 86.9 +fThickness/2.0;
545 r0 = 3.4;
546 height = height1 + height2 + height3 + height4 + height5;
547 r5 = r0 + height;
548
549 Float_t partube[3];
550
551 partube[0] = r0 - 0.2;
552 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
553 partube[2] = fThickness/2.0;
554
555 TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
556
557 Top->cd();
558
559 V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
560
561 V0Rnode->SetLineColor(kBlue);
562 fNodes->Add(V0Rnode);
563
564 V0Rnode->SetVisibility(2);
565
566
567// Rondelles de carbone (epaisseur 1 mm) de maintien des cellules ...
568
569
570 Float_t parbox[10];
571
572 parbox[0] = 0.;
573 parbox[1] = 360.;
574 parbox[2] = 24;
575 parbox[3] = 2;
576 parbox[4] = -0.1/2.0;
577 parbox[5] = r0;
578 parbox[6] = r5;
579 parbox[7] = +0.1/2.0;
580 parbox[8] = r0;
581 parbox[9] = r5;
582
583
584 TPGON *V0CA = new TPGON("V0CA", "V0CA", "void",parbox[0], parbox[1],
585 parbox[2],parbox[3]);
586
587 V0CA->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
588 V0CA->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
589
590 V0Rnode->cd();
591 V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-parbox[7],0);
592 V0Rnode6->SetLineColor(kYellow);
593 fNodes->Add(V0Rnode6);
594 V0Rnode->cd();
595 V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+parbox[7],0);
596 V0Rnode7->SetLineColor(kYellow);
597 fNodes->Add(V0Rnode7);
598
599 parbox[4] = -fThickness/2.0;
600 parbox[5] = r0 - 0.2;
601 parbox[6] = r0;
602 parbox[7] = +fThickness/2.0;
603 parbox[8] = r0 - 0.2;
604 parbox[9] = r0;
605
606 TPGON *V0IR = new TPGON("V0IR","V0IR","void", parbox[0], parbox[1],
607 parbox[2],parbox[3]);
608 V0IR->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
609 V0IR->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
610
611 V0Rnode->cd();
612 V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
613 V0Rnode8->SetLineColor(kYellow);
614 fNodes->Add(V0Rnode8);
615
616 parbox[4] = -fThickness/2.0;
617 parbox[5] = r5;
618 parbox[6] = r5 + 1.0;
619 parbox[7] = +fThickness/2.0;
620 parbox[8] = r5;
621 parbox[9] = r5 + 1.0;
622
623 TPGON *V0ER = new TPGON("V0ER","V0ER","void", parbox[0], parbox[1],
624 parbox[2],parbox[3]);
625 V0ER->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
626 V0ER->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
627
628 V0Rnode->cd();
629 V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
630 V0Rnode9->SetLineColor(kYellow);
631 fNodes->Add(V0Rnode9);
632
633 Float_t dist0;
634 Float_t par[11];
635
636 dist0 = r0 + height / 2.0;
637 thick_alu = 2.0*half_thick_alu;
638
639 par[0] = half_thick_qua1;
640 par[1] = 0.0;
641 par[2] = 0.0;
642 par[3] = height / 2.0 ;
643 par[4] = TMath::Tan(theta) * r0;
644 par[5] = TMath::Tan(theta) * r5;
645 par[6] = 0.0;
646 par[7] = height / 2.0 ;
647 par[8] = TMath::Tan(theta) * r0;
648 par[9] = TMath::Tan(theta) * r5;
649 par[10] = 0.0;
650
651 TTRAP *V0R0 = new TTRAP("V0R0", "V0R0", "void", par[0], par[1], par[2], par[3],
652 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
653
654 Float_t dist1;
655 Float_t r1;
656 Float_t offset;
657
658 dist1 = (- height + height1) /2.0;
659 r1 = r0 + height1;
660 offset = - fThickness/2.0 + 0.1;
661
662 par[0] = half_thick_qua1 - thick_alu;
663 par[3] = height1 / 2.0 - thick_alu;
664 par[4] = TMath::Tan(theta) * r0 - thick_alu;
665 par[5] = TMath::Tan(theta) * r1- thick_alu;
666 par[7] = height1 / 2.0 - thick_alu;
667 par[8] = TMath::Tan(theta) * r0 - thick_alu;
668 par[9] = TMath::Tan(theta) * r1 - thick_alu;
669
670 TTRAP *V0R1 = new TTRAP("V0R1", "V0R1", "void", par[0], par[1], par[2], par[3],
671 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
672
673
674 Float_t dist2;
675 Float_t r2;
676
677 dist2 = (- height + height2) /2.0 + height1;
678 r2 = r1 + height2;
679
680 par[0] = half_thick_qua2 - thick_alu;
681 par[3] = height2 / 2.0 - thick_alu;
682 par[4] = TMath::Tan(theta) * r1 - thick_alu;
683 par[5] = TMath::Tan(theta) * r2 - thick_alu;
684 par[7] = height2 / 2.0 - thick_alu;
685 par[8] = TMath::Tan(theta) * r1 - thick_alu;
686 par[9] = TMath::Tan(theta) * r2 - thick_alu;
687
688
689 TTRAP *V0R2 = new TTRAP("V0R2", "V0R2", "void", par[0], par[1], par[2], par[3],
690 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
691
692
693 Float_t dist3;
694 Float_t r3;
695
696 dist3 = (- height + height3) /2.0 + height1 + height2;
697 r3 = r2 + height3;
698
699 par[0] = half_thick_qua3 - thick_alu;
700 par[3] = height3 / 2.0 - thick_alu;
701 par[4] = TMath::Tan(theta) * r2 - thick_alu;
702 par[5] = TMath::Tan(theta) * r3 - thick_alu;
703 par[7] = height3 / 2.0 - thick_alu;
704 par[8] = TMath::Tan(theta) * r2 - thick_alu;
705 par[9] = TMath::Tan(theta) * r3 - thick_alu;
706
707
708 TTRAP *V0R3 = new TTRAP("V0R3", "V0R3", "void", par[0], par[1], par[2], par[3],
709 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
710
711
712 Float_t dist4;
713 Float_t r4;
714
715 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
716 r4 = r3 + height4;
717
718 par[0] = half_thick_qua4 - thick_alu;
719 par[3] = height4 / 2.0 - thick_alu;
720 par[4] = TMath::Tan(theta) * r3 - thick_alu;
721 par[5] = TMath::Tan(theta) * r4 - thick_alu;
722 par[7] = height4 / 2.0 - thick_alu;
723 par[8] = TMath::Tan(theta) * r3 - thick_alu;
724 par[9] = TMath::Tan(theta) * r4 - thick_alu;
725
726
727 TTRAP *V0R4 = new TTRAP("V0R4", "V0R4", "void", par[0], par[1], par[2], par[3],
728 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
729
730
731 Float_t dist5;
732
733 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
734
735 par[0] = half_thick_qua5 - thick_alu;
736 par[3] = height5 / 2.0 - thick_alu;
737 par[4] = TMath::Tan(theta) * r4 - thick_alu;
738 par[5] = TMath::Tan(theta) * r5 - thick_alu;
739 par[7] = height5 / 2.0 - thick_alu;
740 par[8] = TMath::Tan(theta) * r4 - thick_alu;
741 par[9] = TMath::Tan(theta) * r5 - thick_alu;
742
743
744 TTRAP *V0R5 = new TTRAP("V0R5", "V0R5", "void", par[0], par[1], par[2], par[3],
745 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
746
747
748 Float_t phi;
749 Float_t phi_deg= 180./12.;
750 Float_t phi_rad;
751 Float_t xdet,ydet;
752 Int_t n_detec = 1;
753 char NameNode[12];
754
755
756 for (phi = 7.5; phi < 360.0; phi = phi + phi_deg)
757 {
758
759 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
760
761 phi_rad = phi*pi/180.;
762 xdet = dist0*TMath::Sin(phi_rad);
763 ydet = dist0*TMath::Cos(phi_rad);
764
765
766 sprintf(NameNode,"SUBDET%d",n_detec);
767
768 V0Rnode->cd();
769 V0Rnode0 = new TNode(NameNode,NameNode,V0R0,-xdet,ydet, offset + half_thick_qua1,mat920);
770 V0Rnode0->SetLineColor(kColorVZERO);
771 fNodes->Add(V0Rnode0);
772 n_detec++;
773
774 sprintf(NameNode,"SUBDET%d",n_detec);
775 V0Rnode0->cd();
776 V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,dist1, 0.0,0);
777 V0Rnode1->SetLineColor(kColorVZERO);
778 fNodes->Add(V0Rnode1);
779 n_detec++;
780
781 sprintf(NameNode,"SUBDET%d",n_detec);
782 V0Rnode0->cd();
783 V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,dist2, - half_thick_qua1 + half_thick_qua2,0);
784 V0Rnode2->SetLineColor(kColorVZERO);
785 fNodes->Add(V0Rnode2);
786 n_detec++;
787
788
789 sprintf(NameNode,"SUBDET%d",n_detec);
790 V0Rnode0->cd();
791 V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,dist3, - half_thick_qua1 + half_thick_qua3,0);
792 V0Rnode3->SetLineColor(kColorVZERO);
793 fNodes->Add(V0Rnode3);
794 n_detec++;
795
796 sprintf(NameNode,"SUBDET%d",n_detec);
797 V0Rnode0->cd();
798 V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,dist4, - half_thick_qua1 + half_thick_qua4,0);
799 V0Rnode4->SetLineColor(kColorVZERO);
800 fNodes->Add(V0Rnode4);
801 n_detec++;
802
803 sprintf(NameNode,"SUBDET%d",n_detec);
804 V0Rnode0->cd();
805 V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,dist5, - half_thick_qua1 + half_thick_qua5,0);
806 V0Rnode5->SetLineColor(kColorVZERO);
807 fNodes->Add(V0Rnode5);
808 n_detec++;
809
810 V0Rnode0->SetVisibility(2);
811
812 }
813
814
815// Here I add the enveloppe of the FRONTAL ABSORBER defined by Andreas Morsch
816// in AliABSOv0::CreateGeometry() :
817
818 Float_t parm[24];
819 Float_t dz;
820
821 Top->cd();
822
823 parm[0] = 0.;
824 parm[1] = 360.;
825 parm[2] = 7.;
826
827 parm[3] = -(zRear-zAbsStart)/2.;
828 parm[4] = rAbs;
829 parm[5] = zAbsStart * TMath::Tan(theta1);
830
831 parm[6] = parm[3]+(zNose-zAbsStart);
832 parm[7] = rAbs;
833 parm[8] = zNose * TMath::Tan(theta1);
834
835 parm[9] = parm[3]+(zConeTPC-zAbsStart);
836 parm[10] = rAbs;
837 parm[11] = parm[8] + (parm[9] - parm[6]) * TMath::Tan(theta2);
838
839 parm[12] = parm[3]+(zOpen-zAbsStart);
840 parm[13] = rAbs;
841 parm[14] = parm[11] + (parm[12] - parm[9]) * TMath::Tan(accMax);
842
843 parm[15] = parm[3]+(zRear-dRear-zAbsStart);
844 parm[16] = rAbs + (parm[15] - parm[12]) * TMath::Tan(thetaOpen1) ;
845 parm[17] = parm[14] + (parm[15] - parm[12]) * TMath::Tan(accMax);
846
847 parm[18] = parm[3]+(zRear-dRear-zAbsStart);
848 parm[19] = (zRear-dRear) * TMath::Tan(accMin);
849 parm[20] = parm[14] + (parm[18] - parm[12]) * TMath::Tan(accMax);
850
851 parm[21] = -parm[3];
852 parm[22] = zRear* TMath::Tan(accMin);
853 parm[23] = parm[20] + (parm[21] - parm[18]) * TMath::Tan(accMax);
854
855 printf(" zRear, zAbsStart, rAbs = %f , %f , %f \n\n",
856 zRear, zAbsStart, rAbs );
857
858
859 TPCON *abs0 = new TPCON("abs0", "abs0", "void", parm[0], parm[1], parm[2]);
860
861
862 abs0->DefineSection(0, parm[3], parm[4], parm[5] );
863 abs0->DefineSection(1, parm[6], parm[7], parm[8] );
864 abs0->DefineSection(2, parm[9], parm[10], parm[11] );
865 abs0->DefineSection(3,parm[12], parm[13], parm[14] );
866 abs0->DefineSection(4,parm[15], parm[16], parm[17] );
867 abs0->DefineSection(5,parm[18], parm[19], parm[20] );
868 abs0->DefineSection(6,parm[21], parm[22], parm[23] );
869
870 dz = (zRear-zAbsStart)/2.+zAbsStart;
871
872 TRotMatrix* mat921 = new TRotMatrix("rot921","rot921",90.0,0.0,90.,90.0,180.0,0.0);
873
874 Node0 = new TNode("abs0","abs0",abs0,0.0,0.0,dz,0);
875 Node0->SetLineColor(38);
876 fNodes->Add(Node0);
877
878
879 Float_t cpar[5];
880
881 cpar[0] = (zNose - zAbsStart) / 2.;
882 cpar[1] = zAbsStart * TMath::Tan(accMax);
883 cpar[2] = zAbsStart * TMath::Tan(theta1)-dSteel;
884 cpar[3] = zNose * TMath::Tan(accMax);
885 cpar[4] = zNose * TMath::Tan(theta1)-dSteel;
886
887 dz = -(zRear-zAbsStart)/2.+cpar[0];
888
889 TCONE *abs1 = new TCONE("abs1", "abs1", "void", cpar[0], cpar[1], cpar[2],
890 cpar[3], cpar[4]);
891
892 Node0->cd();
893
894 Node1 = new TNode("abs1","abs1",abs1,0.0,0.0,dz,0);
895 Node1->SetLineColor(7);
896 fNodes->Add(Node1);
897
898// Here I add a reference box to visualise the vertex zone :
899
900 Top->cd();
901
902 Float_t paref[3];
903
904 paref[0] = 10.0;
905 paref[1] = 15.0;
906 paref[2] = 5.6;
907
908 TBRIK *aref = new TBRIK("aref","aref", "void", paref[0],paref[1],paref[2]);
909
910 Node2 = new TNode("aref","aref",aref,0.0,0.0,0.0,0);
911 Node2->SetLineColor(kBlue);
912 fNodes->Add(Node2);
913
914// Here I add the mother volume QBPM
915// and the flanges QB29, QB22 et QB24 defined by Andreas Morsch
916// in AliPIPEv0::CreateGeometry() :
917
918
919 Float_t parp[36];
920
921// Mother Volume QBPM :
922
923 parp[0] = 0;
924 parp[1] = 360;
925 parp[2] = 11;
926
927 parp[3] = - 90;
928 parp[4] = 0;
929 parp[5] = 5.8;
930
931 parp[6] = - 81.0;
932 parp[7] = 0.;
933 parp[8] = 5.8;
934
935 parp[9] = - 81.;
936 parp[10] = 0.;
937 parp[11] = 4.22;
938
939 parp[12] = - 28.00;
940 parp[13] = 0;
941 parp[14] = 4.22;
942
943 parp[15] = - 28.00;
944 parp[16] = 0;
945 parp[17] = 3.2;
946
947 parp[18] = 0;
948 parp[19] = 0;
949 parp[20] = 3.2;
950
951 parp[21] = 28.00;
952 parp[22] = 0;
953 parp[23] = 3.2;
954
955 parp[24] = 28.00;
956 parp[25] = 0;
957 parp[26] = 4.22;
958
959 parp[27] = 250;
960 parp[28] = 0;
961 parp[29] = 4.22;
962
963 parp[30] = 250;
964 parp[31] = 0;
965 parp[32] = 5;
966
967 parp[33] = 800;
968 parp[34] = 0;
969 parp[35] = 5;
970
971 TPCON *pip0 = new TPCON("pip0", "pip0", "void", parp[0], parp[1], parp[2]);
972
973 pip0->DefineSection( 0, parp[3], parp[4], parp[5] );
974 pip0->DefineSection( 1, parp[6], parp[7], parp[8] );
975 pip0->DefineSection( 2, parp[9], parp[10], parp[11] );
976 pip0->DefineSection( 3,parp[12], parp[13], parp[14] );
977 pip0->DefineSection( 4,parp[15], parp[16], parp[17] );
978 pip0->DefineSection( 5,parp[18], parp[19], parp[20] );
979 pip0->DefineSection( 6,parp[21], parp[22], parp[23] );
980 pip0->DefineSection( 7,parp[24], parp[25], parp[26] );
981 pip0->DefineSection( 8,parp[27], parp[28], parp[29] );
982 pip0->DefineSection( 9,parp[30], parp[31], parp[32] );
983 pip0->DefineSection(10,parp[33], parp[34], parp[35] );
984
985 dz = 0.0;
986
987 Top->cd();
988
989 Node3 = new TNode("pip0","pip0",pip0,0.0,0.0,dz,mat921);
990 Node3->SetLineColor(10);
991 fNodes->Add(Node3);
992 Node3->SetVisibility(2);
993
994// Flanges QB29 at 654.8 and 254.8 cms :
995
996 Float_t ptube[3];
997
998 ptube[0] = 3.0;
999 ptube[1] = 4.9;
1000 ptube[2] = 2.2;
1001
1002 TTUBE *pip1 = new TTUBE("pip1", "pip1", "void", ptube[0], ptube[1], ptube[2]);
1003
1004 Node3->cd();
1005
1006
1007 Node4 = new TNode("pip1","pip1",pip1,0.0,0.0,254.8,0);
1008 Node4->SetLineColor(6);
1009 fNodes->Add(Node4);
1010
1011 TTUBE *pip2 = new TTUBE("pip2", "pip2", "void", ptube[0], ptube[1], ptube[2]);
1012
1013 Node3->cd();
1014
1015 Node5 = new TNode("pip2","pip2",pip2,0.0,0.0,654.8,0);
1016 Node5->SetLineColor(6);
1017 fNodes->Add(Node5);
1018
1019
1020// Al-Be section QBAB at 335.0 cm (LEFT side) :
1021
1022 ptube[0] = 2.90;
1023 ptube[1] = 3.05;
1024 ptube[2] = 171.0;
1025
1026 TTUBE *pip3 = new TTUBE("pip3", "pip3", "void", ptube[0], ptube[1], ptube[2]);
1027
1028 Node3->cd();
1029
1030 Node6 = new TNode("pip3","pip3",pip3,0.0,0.0,335.0+ptube[2],0);
1031 Node6->SetLineColor(6);
1032 fNodes->Add(Node6);
1033
1034// Here I add the flange which is sitting on beam line
1035// right in front of V0R detector, and which I found on CERN drawing
1036// entitled : ALICE BEAM VACCUM CHAMBER - RB26 version III :
1037
1038 ptube[0] = 3.0;
1039 ptube[1] = 5.675;
1040 ptube[2] = 0.9;
1041
1042 TTUBE *pip4 = new TTUBE("pip4", "pip4", "void", ptube[0], ptube[1], ptube[2]);
1043
1044 Node3->cd();
1045
1046
1047 Node7 = new TNode("pip4","pip4",pip4,0.0,0.0,-85.0-0.9,0);
1048 Node7->SetLineColor(6);
1049 fNodes->Add(Node7);
1050
1051 }
1052
1053
1054//------------------------------------------------------------------------
1055void AliVZEROv0::CreateMaterials()
1056{
1057 Int_t i;
1058
1059 printf("\n");
1060 for(i=0;i<35;i++) printf("*");
1061 printf(" VZERO create materials ");
1062 for(i=0;i<35;i++) printf("*");
1063 printf("\n");
1064
1065/* ................... OLD VALUES ( used in RICH) ............................
1066 Float_t ppckov[14] = { 5.63e-9,5.77e-9,5.9e-9,6.05e-9,6.2e-9,6.36e-9,6.52e-9,
1067 6.7e-9,6.88e-9,7.08e-9,7.3e-9,7.51e-9,7.74e-9,8e-9 };
1068 Float_t rindex_quarz[14] = { 1.528309,1.533333,
1069 1.538243,1.544223,1.550568,1.55777,
1070 1.565463,1.574765,1.584831,1.597027,
1071 1.611858,1.6277,1.6472,1.6724 };
1072 Float_t absco_quarz[14] = { 20.126,16.27,13.49,11.728,9.224,8.38,7.44,7.17,
1073 6.324,4.483,1.6,.323,.073,0. };
1074...................................................................................... */
1075
1076
1077 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,
1078 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
1079
1080 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
1081 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
1082 1.662295, 1.68337 };
1083
1084 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
1085 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
1086
1087 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1088
1089
1090 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1091
1092 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,
1093 1e-4,1e-4,1e-4,1e-4 };
1094 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1095
1096
1097 Int_t *idtmed = fIdtmed->GetArray()-2999;
1098
1099 TGeant3 *geant3 = (TGeant3*) gMC;
1100
1101// Parameters related to Quarz (SiO2) :
1102
1103 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
1104 Int_t nlmatqua;
1105
1106 aqua[0] = 28.09;
1107 aqua[1] = 16.;
1108 zqua[0] = 14.;
1109 zqua[1] = 8.;
1110 densqua = 2.64;
1111 nlmatqua = -2;
1112 wmatqua[0] = 1.;
1113 wmatqua[1] = 2.;
1114
1115// Parameters related to aluminum sheets :
1116
1117 Float_t aal = 26.98;
1118 Float_t zal = 13.00;
1119 Float_t densal= 2.7;
1120 Float_t radlal= 8.9;
1121
1122// Parameters related to scintillator CH :
1123
1124 Float_t ascin[2] = {1.01,12.01};
1125 Float_t zscin[2] = {1,6};
1126 Float_t wscin[2] = {1,1};
1127 Float_t denscin = 1.03;
1128
1129// Definition of materials :
1130
1131 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500);
1132 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500);
1133 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9);
1134 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
1135 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2);
1136 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0);
1137
1138
1139 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
1140
1141
1142 Int_t ISXFLD = gAlice->Field()->Integ();
1143 Float_t SXMGMX = gAlice->Field()->Max();
1144
1145 Float_t tmaxfd, stemax, deemax, epsil, stmin;
1146
1147 tmaxfd = -10.;
1148 stemax = -0.1;
1149 deemax = -0.1;
1150 epsil = -0.01;
1151 stmin = -0.001;
1152
1153
1154// Active Air :
1155 AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1156
1157// Inactive air :
1158
1159 AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1160
1161 AliMedium(2, "CARBON$ ", 2, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1162
1163 AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX, tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin);
1164
1165 AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX, tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1166 AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX, tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1167 AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003);
1168
1169 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
1170 gMC->Gstpar(idtmed[3000], "HADR", 1.);
1171 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
1172 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
1173
1174 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
1175 gMC->Gstpar(idtmed[3001], "HADR", 1.);
1176 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
1177 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
1178
1179 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
1180 gMC->Gstpar(idtmed[3002], "HADR", 1.);
1181 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
1182 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
1183
1184 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
1185 gMC->Gstpar(idtmed[3003], "HADR", 1.);
1186 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
1187 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
1188
1189 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
1190 gMC->Gstpar(idtmed[3004], "HADR", 1.);
1191 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
1192 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
1193
1194 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
1195 gMC->Gstpar(idtmed[3005], "HADR", 1.);
1196 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
1197 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
1198
1199 geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
1200
1201 geant3->Gsckov(idtmed[3004], 14, ppckov, absco_alu, effic_alu, rindex_alu);
1202
1203}
1204//---------------------------------------------------------------------
1205void AliVZEROv0::DrawModule()
1206{
1207
1208// Drawing is done in DrawVZERO.C
1209
1210 Int_t i;
1211
1212 printf("\n");
1213 for(i=0;i<35;i++) printf("*");
1214 printf(" VZERO DrawModule ");
1215 for(i=0;i<35;i++) printf("*");
1216 printf("\n");
1217
1218
1219}
1220
1221//-------------------------------------------------------------------
1222void AliVZEROv0::Init()
1223{
1224// Initialises version 0 of the VZERO Detector
1225// Just prints an information message
1226
1227 Int_t i;
1228
1229 printf("\n");
1230 for(i=0;i<35;i++) printf("*");
1231 printf(" VZERO_Init \n");
1232 for(i=0;i<35;i++) printf("*");
1233 printf("\n");
1234
1235 fMulti = 0;
1236 fNCerenkovs = 0;
1237 fNGCerenkovs = 0;
1238 fNdead = 0;
1239
1240 BookingHistograms();
1241
1242}
1243
1244//-------------------------------------------------------------------
1245
1246void AliVZEROv0::StepManager()
1247{
1248
1249// Minimal version of StepManager :
1250// Everything has been removed, I only AddHit whenever hit is in
1251// volume V0RI.
1252
1253 Int_t copy;
1254 Int_t vol[4]; // (box, layer, row, column) indices
1255 Float_t hits[19]; // position wrt MRS, energies...
1256
1257 TLorentzVector pos;
1258 Float_t global[3];
1259 Float_t local[3];
1260
1261 TLorentzVector momentum;
1262 Float_t theta;
1263 Float_t phi;
1264 Float_t mom[4];
1265 Float_t kRaddeg = 180/TMath::Pi();
1266
1267 Float_t TrackEnters = 0.0;
1268 Float_t TrackExits = 0.0;
1269 Float_t Cerenkov = 0.0;
1270
1271 gMC->SetMaxStep(fMaxStepAlu);
1272 gMC->SetMaxStep(fMaxStepQua);
1273
1274 if (!gMC->IsTrackAlive()) return;
1275
1276 if (gMC->IsTrackEntering()) TrackEnters = 1.0;
1277 if (gMC->IsTrackExiting() ) TrackExits = 1.0;
1278 if (gMC->TrackPid() == 50000050) Cerenkov = 1.0;
1279
1280
1281
1282 gMC->TrackPosition(pos);
1283 gMC->TrackMomentum(momentum);
1284
1285 mom[0] = momentum[0];
1286 mom[1] = momentum[1];
1287 mom[2] = momentum[2];
1288 mom[3] = momentum[3];
1289
1290 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1291 Double_t rt = TMath::Sqrt(tc);
1292 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
1293 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1294
1295 global[0] = pos[0];
1296 global[1] = pos[1];
1297 global[2] = pos[2];
1298
1299
1300 gMC->Gmtod(global,local,1);
1301
1302 hits[0] = global[0];
1303 hits[1] = global[1];
1304 hits[2] = global[2];
1305 hits[3] = local[0];
1306 hits[4] = local[1];
1307 hits[5] = local[2];
1308 hits[6] = gMC->Edep();
1309 hits[7] = gMC->Etot();
1310 hits[8] = Float_t (gMC->TrackPid());
1311 hits[9] = Float_t (gMC->IdFromPDG(gMC->TrackPid()));
1312 hits[10] = gMC->TrackTime();
1313 hits[11] = TrackEnters;
1314 hits[12] = TrackExits;
1315 hits[13] = gMC->TrackCharge();
1316 hits[14] = Cerenkov;
1317
1318 hits[16] = theta;
1319 hits[17] = phi;
1320
1321 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
1322 vol[2] = gMC->CurrentVolID(copy);
1323 vol[3] = copy;
1324
1325
1326 if (gMC->CurrentVolID(copy) >= gMC->VolId("V0RI") &&
1327 gMC->CurrentVolID(copy) <= gMC->VolId("V0E4"))
1328 {
1329 AddHit(gAlice->CurrentTrack(), vol, hits);
1330 }
1331
1332 }
1333
1334//---------------------------------------------------------------------
1335void AliVZEROv0::AddHit(Int_t track, Int_t* vol, Float_t* hits)
1336{
1337
1338 // Adds a hit
1339
1340
1341 TClonesArray &lhits = *fHits;
1342
1343 new(lhits[fNhits++]) AliVZEROhit(fIshunt, track, vol, hits);
1344
1345}
1346
1347//---------------------------------------------------------------------
1348void AliVZEROv0::FinishEvent()
1349{
1350
1351 printf("\n");
1352 for(int i=0;i<30;i++) printf("*");
1353 printf(" VZERO_finishevent");
1354 for(int i=0;i<30;i++) printf("*");
1355 printf("\n");
1356
1357 AddDigit(tracks, digits);
1358
1359
1360 if(fMulti > 0) fhMultiplicity->Fill(fMulti);
1361 fhCerenkov->Fill(fNCerenkovs);
1362
1363 fMulti = 0;
1364 fNCerenkovs = 0;
1365 fNGCerenkovs = 0;
1366 fNdead = 0;
1367
1368}
1369
1370//---------------------------------------------------------------------
1371void AliVZEROv0::AddDigit(Int_t *tracks, Int_t* digits)
1372{
1373
1374 TClonesArray &ldigits = *fDigits;
1375
1376 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1377
1378}
1379
1380
1381//---------------------------------------------------------------------
1382void AliVZEROv0::MakeBranch(Option_t *option)
1383{
1384
1385 // Creates new branches in the current Root Tree
1386
1387
1388 char branchname[10];
1389 sprintf(branchname,"%s",GetName());
1390
1391
1392 char *H = strstr(option,"H");
1393
1394 if (fHits && gAlice->TreeH() && H) {
1395 gAlice->TreeH()->Branch(branchname,&fHits, fBufferSize);
1396 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1397 }
1398
1399 char *D = strstr(option,"D");
1400 //
1401 if (fDigits && gAlice->TreeD() && D) {
1402 gAlice->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1403 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
1404 }
1405
1406
1407}
1408
1409//---------------------------------------------------------------------
1410void AliVZEROv0::BookingHistograms()
1411{
1412
1413 if (fhMultiplicity)
1414 delete fhMultiplicity;
1415
1416 if (fhGEANTcode)
1417 delete fhGEANTcode;
1418
1419 if (fhCerenkov)
1420 delete fhCerenkov;
1421
1422 if (fhToF)
1423 delete fhToF;
1424
1425// fhMultiplicity = new TH1F("hMultiplicity", "hMultiplicity", 350, 0. , 350.);
1426
1427 fhMultiplicity = new TH1F("hMultiplicity", "hMultiplicity", 100, 1. , 100.);
1428 fhGEANTcode = new TH1F("hGEANTcode", "hGEANTcode", 50, 1., 50.);
1429 fhCerenkov = new TH1F("hCerenkov", "hCerenkov", 100, 1., 100000.);
1430 fhToF = new TH1F("hToF", "hToF",150,2.0,7.0);
1431
1432}
1433
1434//---------------------------------------------------------------------
1435void AliVZEROv0::FinishRun()
1436{
1437
1438 SavingHistograms();
1439}
1440
1441
1442
1443//---------------------------------------------------------------------
1444void AliVZEROv0::SavingHistograms()
1445{
1446
1447// Saves the histograms in a root file named "name.save"
1448
1449
1450 Text_t outputname[8] ;
1451 outputname = "Fileout";
1452 TFile output(outputname,"RECREATE");
1453 output.cd();
1454
1455 if (fhMultiplicity)
1456 fhMultiplicity->Write();
1457 if (fhGEANTcode)
1458 fhGEANTcode->Write();
1459 if (fhCerenkov)
1460 fhCerenkov->Write();
1461 if (fhToF)
1462 fhToF->Write();
1463}