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