1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 //////////////////////////////////////////////////////////////////////
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 // Geometrie du 25/02/2002 //
25 //////////////////////////////////////////////////////////////////////
29 #include <Riostream.h>
34 #include <TClonesArray.h>
35 #include <TGeometry.h>
37 #include <TLorentzVector.h>
40 #include <TObjectTable.h>
47 #include <TVirtualMC.h>
49 #include "ABSOConst.h"
50 #include "ABSOSHILConst.h"
53 #include "AliVZEROdigit.h"
54 #include "AliVZEROhit.h"
55 #include "AliVZEROv0.h"
60 //--------------------------------------------------------------------
61 AliVZEROv0:: AliVZEROv0():AliVZERO()
66 //--------------------------------------------------------------------
67 AliVZEROv0::AliVZEROv0(const char *name, const char *title):
71 // Standard constructor for V-zeroR Detector (right part) version 0
77 for(i=0;i<30;i++) printf("*");
78 printf(" Create VZERO object ");
79 for(i=0;i<30;i++) printf("*");
84 //-------------------------------------------------------------------------
85 void AliVZEROv0::CreateGeometry()
88 // Creates the Geant geometry of the V-zero Detector version 0
94 for(i=0;i<30;i++) printf("*");
95 printf(" Create VZERO Geometry ");
96 for(i=0;i<30;i++) printf("*");
100 Int_t *idtmed = fIdtmed->GetArray()-2999;
110 Float_t height1, height2, height3, height4, height5;
113 Float_t half_thick_alu;
114 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
115 Float_t half_thick_qua4,half_thick_qua5;
118 Float_t pi = TMath::Pi();
121 height1 = 2.0; // height of cell 1, in cm
122 height2 = 3.2; // height of cell 2, in cm
123 height3 = 4.9; // height of cell 3, in cm
124 height4 = 7.5; // height of cell 4, in cm
125 height5 = 12.0; // height of cell 5, in cm
127 theta = pi/6.0/2.0; // half angular opening = 15 degrees
128 half_thick_alu = 0.0025; // half thickness of aluminum foil, in cm
129 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;
137 zdet = 86.9 +fThickness/2.0; // distance to vertex (along Z axis)
138 r0 = 4.0; // closest distance to center of the beam pipe
139 height = height1 + height2 + height3 + height4 + height5;
142 //............................................................................
144 // Here I add the flange which is sitting on beam line
145 // right in front of V0R detector, and which I found on CERN drawing
146 // entitled : ALICE BEAM VACCUM CHAMBER - RB26 version III :
148 // Float_t pflange[3];
151 // pflange[1] = 5.675;
154 // gMC->Gsvolu("QFA0","TUBE", idtmed[3003], pflange, 3);
155 // gMC->Gspos("QFA0", 1 ,"ALIC", 0.0, 0.0, 85.0+0.9, 0, "ONLY");
157 //............................................................................
160 // Creation of mother volume V0LE - left part - :
161 // Face entree a -350.0 cm ...
167 partube[2] = fThickness1/2.0;
169 gMC->Gsvolu("V0LE","TUBE",idtmed[3002],partube,3);
172 // Creation of five rings - left part - :
173 // Face entree a -350.0 cm ...
175 // Mother volume V0L0 in which will be set 5 quartz cells
181 Float_t r0_left = 4.3;
182 Float_t height1_left = 2.6;
183 Float_t height2_left = 4.1;
184 Float_t height3_left = 6.4;
185 Float_t height4_left = 10.2;
186 Float_t height5_left = 16.9;
187 Float_t height_left = height1_left + height2_left + height3_left
188 + height4_left + height5_left;
189 Float_t r5_left = r0_left + height_left;
192 dist0_left = r0_left + height_left / 2.0;
193 thick_alu = 2.0*half_thick_alu;
195 par[0] = half_thick_qua1;
198 par[3] = height_left / 2.0 ;
199 par[4] = TMath::Tan(theta) * r0_left;
200 par[5] = TMath::Tan(theta) * r5_left;
202 par[7] = height_left / 2.0 ;
203 par[8] = TMath::Tan(theta) * r0_left;
204 par[9] = TMath::Tan(theta) * r5_left;
208 gMC->Gsvolu("V0L0","TRAP",idtmed[3010],par,11); // air volume
214 dist1_left = (- height_left + height1_left) /2.0;
215 r1_left = r0_left + height1_left;
216 offset_left = - fThickness1/2.0 + 0.1;
218 par[0] = half_thick_qua1 - thick_alu;
219 par[3] = height1_left / 2.0 - thick_alu;
220 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
221 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
222 par[7] = height1_left / 2.0 - thick_alu;
223 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
224 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
227 gMC->Gsvolu("V0L1","TRAP",idtmed[3002],par,11); // quartz volume
228 gMC->Gspos("V0L1",1,"V0L0", 0.0, dist1_left , 0.0, 0,"ONLY");
233 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
234 r2_left = r1_left + height2_left;
236 par[0] = half_thick_qua1 - thick_alu;
237 par[3] = height2_left / 2.0 - thick_alu;
238 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
239 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
240 par[7] = height2_left / 2.0 - thick_alu;
241 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
242 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
244 gMC->Gsvolu("V0L2","TRAP",idtmed[3002],par,11); // quartz volume
245 gMC->Gspos("V0L2",1,"V0L0", 0.0, dist2_left , 0.0, 0,"ONLY");
251 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
252 r3_left = r2_left + height3_left;
254 par[0] = half_thick_qua1 - thick_alu;
255 par[3] = height3_left / 2.0 - thick_alu;
256 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
257 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
258 par[7] = height3_left / 2.0 - thick_alu;
259 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
260 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
262 gMC->Gsvolu("V0L3","TRAP",idtmed[3002],par,11); // quartz volume
263 gMC->Gspos("V0L3",1,"V0L0", 0.0, dist3_left , 0.0, 0,"ONLY");
268 dist4_left = (- height_left + height4_left) /2.0 + height1_left
269 + height2_left + height3_left;
270 r4_left = r3_left + height4_left;
272 par[0] = half_thick_qua1 - thick_alu;
273 par[3] = height4_left / 2.0 - thick_alu;
274 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
275 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
276 par[7] = height4_left / 2.0 - thick_alu;
277 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
278 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
280 gMC->Gsvolu("V0L4","TRAP",idtmed[3002],par,11); // quartz volume
281 gMC->Gspos("V0L4",1,"V0L0", 0.0, dist4_left , 0.0, 0,"ONLY");
287 dist5_left = (- height_left + height5_left) /2.0 + height1_left
288 + height2_left + height3_left + height4_left;
291 par[0] = half_thick_qua1 - thick_alu;
292 par[3] = height5_left / 2.0 - thick_alu;
293 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
294 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
295 par[7] = height5_left / 2.0 - thick_alu;
296 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
297 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
299 gMC->Gsvolu("V0L5","TRAP",idtmed[3002],par,11); // quartz volume
300 gMC->Gspos("V0L5",1,"V0L0", 0.0, dist5_left , 0.0, 0,"ONLY");
303 //............................................................................
305 // Creation of mother volume V0RI - right part - :
308 partube[0] = r0 - 0.2;
309 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
310 partube[2] = fThickness/2.0;
313 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
315 // Creation of carbon lids (1 mm thick) to keep V0RI box shut...
323 parbox[4] = -0.1/2.0;
326 parbox[7] = +0.1/2.0;
331 gMC->Gsvolu("V0CA","PGON",idtmed[3001],parbox,10);
332 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-parbox[7],0,"ONLY");
333 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+parbox[7],0,"ONLY");
335 // Creation of aluminum rings to maintain the V0RI pieces ...
337 parbox[4] = -fThickness/2.0;
340 parbox[7] = +fThickness/2.0;
344 gMC->Gsvolu("V0IR","PGON",idtmed[3003],parbox,10);
345 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
347 parbox[4] = -fThickness/2.0;
349 parbox[6] = r5 + 1.0;
350 parbox[7] = +fThickness/2.0;
352 parbox[9] = r5 + 1.0;
354 gMC->Gsvolu("V0ER","PGON",idtmed[3003],parbox,10);
355 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
357 // Mother volume V0R0 in which will be set 5 quartz cells
358 // each one WRAPPED in reflecting aluminum :
362 dist0 = r0 + height / 2.0;
363 thick_alu = 2.0*half_thick_alu;
365 par[0] = half_thick_qua1;
368 par[3] = height / 2.0 ;
369 par[4] = TMath::Tan(theta) * r0;
370 par[5] = TMath::Tan(theta) * r5;
372 par[7] = height / 2.0 ;
373 par[8] = TMath::Tan(theta) * r0;
374 par[9] = TMath::Tan(theta) * r5;
378 gMC->Gsvolu("V0R0","TRAP",idtmed[3010],par,11); // air volume
380 // Elementary cell of ring 1 :
386 dist1 = (- height + height1) /2.0;
388 offset = - fThickness/2.0 + 0.1;
390 par[0] = half_thick_qua1 - thick_alu;
391 par[3] = height1 / 2.0 - thick_alu;
392 par[4] = TMath::Tan(theta) * r0 - thick_alu;
393 par[5] = TMath::Tan(theta) * r1- thick_alu;
394 par[7] = height1 / 2.0 - thick_alu;
395 par[8] = TMath::Tan(theta) * r0 - thick_alu;
396 par[9] = TMath::Tan(theta) * r1 - thick_alu;
399 gMC->Gsvolu("V0R1","TRAP",idtmed[3002],par,11); // quartz volume
400 gMC->Gspos("V0R1",1,"V0R0", 0.0, dist1 , 0.0, 0,"ONLY");
402 par[0] = half_thick_alu;
404 gMC->Gsvolu("V0A1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
405 gMC->Gspos("V0A1",1,"V0R1",0.0,0.0, - half_thick_qua1 + half_thick_alu,0,"ONLY");
406 gMC->Gspos("V0A1",2,"V0R1",0.0,0.0, + half_thick_qua1 - half_thick_alu,0,"ONLY");
408 parbox[0] = half_thick_alu;
409 parbox[1] = height1 / TMath::Cos(theta)/ 2.0;
410 parbox[2] = half_thick_qua1;
412 gMC->Gsvolu("V0A2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
413 Float_t theta_deg = 180./6./2.0;
415 h1 = TMath::Tan(theta) * (r0 + height1/2.0);
416 AliMatrix(idrotm[911],90.0,+theta_deg,90.0,90.+theta_deg,0.0,0.);
417 gMC->Gspos("V0A2",1,"V0R1",-h1 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
418 AliMatrix(idrotm[912],90.0,-theta_deg,90.0,90.-theta_deg,0.0,0.);
419 gMC->Gspos("V0A2",2,"V0R1",+h1 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
421 parbox[0] = TMath::Tan(theta) * r0;
422 parbox[1] = half_thick_alu;
423 parbox[2] = half_thick_qua1;
424 gMC->Gsvolu("V0A3","BOX",idtmed[3004],parbox,3);
425 gMC->Gspos("V0A3",1,"V0R1",0.0, - (height1/2.0) + half_thick_alu ,0.0,0,"ONLY");
428 parbox[0] = TMath::Tan(theta) * (r0 + height1);
429 parbox[1] = half_thick_alu;
430 parbox[2] = half_thick_qua1;
431 gMC->Gsvolu("V0A4","BOX",idtmed[3004],parbox,3);
432 gMC->Gspos("V0A4",1,"V0R1",0.0, (height1/2.0) - half_thick_alu,0.0,0,"ONLY");
435 // Elementary cell of ring 2 :
440 dist2 = (- height + height2) /2.0 + height1;
443 par[0] = half_thick_qua2 - thick_alu;
444 par[3] = height2 / 2.0 - thick_alu;
445 par[4] = TMath::Tan(theta) * r1 - thick_alu;
446 par[5] = TMath::Tan(theta) * r2 - thick_alu;
447 par[7] = height2 / 2.0 - thick_alu;
448 par[8] = TMath::Tan(theta) * r1 - thick_alu;
449 par[9] = TMath::Tan(theta) * r2 - thick_alu;
451 gMC->Gsvolu("V0R2","TRAP",idtmed[3002],par,11); // quartz volume
452 gMC->Gspos("V0R2",1,"V0R0", 0.0, dist2 , - half_thick_qua1 + half_thick_qua2, 0,"ONLY");
454 par[0] = half_thick_alu;
456 gMC->Gsvolu("V0B1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
457 gMC->Gspos("V0B1",1,"V0R2",0.0,0.0, - half_thick_qua2 + half_thick_alu,0,"ONLY");
458 gMC->Gspos("V0B1",2,"V0R2",0.0,0.0, + half_thick_qua2 - half_thick_alu,0,"ONLY");
460 parbox[0] = half_thick_alu;
461 parbox[1] = height2 / TMath::Cos(theta)/ 2.0;
462 parbox[2] = half_thick_qua2;
464 gMC->Gsvolu("V0B2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
466 h2 = TMath::Tan(theta) * (r0 + height1 + height2/2.0);
467 gMC->Gspos("V0B2",1,"V0R2",-h2 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
468 gMC->Gspos("V0B2",2,"V0R2",+h2 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
470 parbox[0] = TMath::Tan(theta) * (r0 + height1);
471 parbox[1] = half_thick_alu;
472 parbox[2] = half_thick_qua2;
473 gMC->Gsvolu("V0B3","BOX",idtmed[3004],parbox,3);
474 gMC->Gspos("V0B3",1,"V0R2",0.0, - (height2/2.0) + half_thick_alu ,0.0,0,"ONLY");
477 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
478 parbox[1] = half_thick_alu;
479 parbox[2] = half_thick_qua2;
480 gMC->Gsvolu("V0B4","BOX",idtmed[3004],parbox,3);
481 gMC->Gspos("V0B4",1,"V0R2",0.0, (height2/2.0) - half_thick_alu,0.0,0,"ONLY");
484 // Elementary cell ring 3 :
489 dist3 = (- height + height3) /2.0 + height1 + height2;
492 par[0] = half_thick_qua3 - thick_alu;
493 par[3] = height3 / 2.0 - thick_alu;
494 par[4] = TMath::Tan(theta) * r2 - thick_alu;
495 par[5] = TMath::Tan(theta) * r3 - thick_alu;
496 par[7] = height3 / 2.0 - thick_alu;
497 par[8] = TMath::Tan(theta) * r2 - thick_alu;
498 par[9] = TMath::Tan(theta) * r3 - thick_alu;
500 gMC->Gsvolu("V0R3","TRAP",idtmed[3002],par,11); // quartz volume
501 gMC->Gspos("V0R3",1,"V0R0", 0.0, dist3 , - half_thick_qua1 + half_thick_qua3, 0,"ONLY");
504 par[0] = half_thick_alu;
506 gMC->Gsvolu("V0C1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
507 gMC->Gspos("V0C1",1,"V0R3",0.0,0.0, - half_thick_qua3 + half_thick_alu,0,"ONLY");
508 gMC->Gspos("V0C1",2,"V0R3",0.0,0.0, + half_thick_qua3 - half_thick_alu,0,"ONLY");
510 parbox[0] = half_thick_alu;
511 parbox[1] = height3 / TMath::Cos(theta)/ 2.0;
512 parbox[2] = half_thick_qua3;
514 gMC->Gsvolu("V0C2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
516 h3 = TMath::Tan(theta) * (r0 + height1 + height2 + height3/2.0);
517 gMC->Gspos("V0C2",1,"V0R3",-h3 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
518 gMC->Gspos("V0C2",2,"V0R3",+h3 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
520 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
521 parbox[1] = half_thick_alu;
522 parbox[2] = half_thick_qua3;
523 gMC->Gsvolu("V0C3","BOX",idtmed[3004],parbox,3);
524 gMC->Gspos("V0C3",1,"V0R3",0.0, - (height3/2.0) + half_thick_alu ,0.0,0,"ONLY");
527 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
528 parbox[1] = half_thick_alu;
529 parbox[2] = half_thick_qua3;
530 gMC->Gsvolu("V0C4","BOX",idtmed[3004],parbox,3);
531 gMC->Gspos("V0C4",1,"V0R3",0.0, (height3/2.0) - half_thick_alu,0.0,0,"ONLY");
534 // Elementary cell ring 4 :
539 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
542 par[0] = half_thick_qua4 - thick_alu;
543 par[3] = height4 / 2.0 - thick_alu;
544 par[4] = TMath::Tan(theta) * r3 - thick_alu;
545 par[5] = TMath::Tan(theta) * r4 - thick_alu;
546 par[7] = height4 / 2.0 - thick_alu;
547 par[8] = TMath::Tan(theta) * r3 - thick_alu;
548 par[9] = TMath::Tan(theta) * r4 - thick_alu;
550 gMC->Gsvolu("V0R4","TRAP",idtmed[3002],par,11); // quartz volume
551 gMC->Gspos("V0R4",1,"V0R0", 0.0, dist4 , - half_thick_qua1 + half_thick_qua4, 0,"ONLY");
554 par[0] = half_thick_alu;
556 gMC->Gsvolu("V0D1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
557 gMC->Gspos("V0D1",1,"V0R4",0.0,0.0, - half_thick_qua4 + half_thick_alu,0,"ONLY");
558 gMC->Gspos("V0D1",2,"V0R4",0.0,0.0, + half_thick_qua4 - half_thick_alu,0,"ONLY");
560 parbox[0] = half_thick_alu;
561 parbox[1] = height4 / TMath::Cos(theta)/ 2.0;
562 parbox[2] = half_thick_qua4;
564 gMC->Gsvolu("V0D2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
566 h4 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4/2.0);
567 gMC->Gspos("V0D2",1,"V0R4",-h4 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
568 gMC->Gspos("V0D2",2,"V0R4",+h4 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
570 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
571 parbox[1] = half_thick_alu;
572 parbox[2] = half_thick_qua4;
573 gMC->Gsvolu("V0D3","BOX",idtmed[3004],parbox,3);
574 gMC->Gspos("V0D3",1,"V0R4",0.0, - (height4/2.0) + half_thick_alu ,0.0,0,"ONLY");
577 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
578 parbox[1] = half_thick_alu;
579 parbox[2] = half_thick_qua4;
580 gMC->Gsvolu("V0D4","BOX",idtmed[3004],parbox,3);
581 gMC->Gspos("V0D4",1,"V0R4",0.0, (height4/2.0) - half_thick_alu,0.0,0,"ONLY");
584 // Elementary cell ring 5 :
588 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
590 par[0] = half_thick_qua5 - thick_alu;
591 par[3] = height5 / 2.0 - thick_alu;
592 par[4] = TMath::Tan(theta) * r4 - thick_alu;
593 par[5] = TMath::Tan(theta) * r5 - thick_alu;
594 par[7] = height5 / 2.0 - thick_alu;
595 par[8] = TMath::Tan(theta) * r4 - thick_alu;
596 par[9] = TMath::Tan(theta) * r5 - thick_alu;
598 gMC->Gsvolu("V0R5","TRAP",idtmed[3002],par,11); // quartz volume
599 gMC->Gspos("V0R5",1,"V0R0", 0.0, dist5 , - half_thick_qua1 + half_thick_qua5, 0,"ONLY");
602 par[0] = half_thick_alu;
604 gMC->Gsvolu("V0E1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
605 gMC->Gspos("V0E1",1,"V0R5",0.0,0.0, - half_thick_qua5 + half_thick_alu,0,"ONLY");
606 gMC->Gspos("V0E1",2,"V0R5",0.0,0.0, + half_thick_qua5 - half_thick_alu,0,"ONLY");
608 parbox[0] = half_thick_alu;
609 parbox[1] = height5 / TMath::Cos(theta)/ 2.0;
610 parbox[2] = half_thick_qua5;
612 gMC->Gsvolu("V0E2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
614 h5 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4 + height5/2.0);
615 gMC->Gspos("V0E2",1,"V0R5",-h5 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
616 gMC->Gspos("V0E2",2,"V0R5",+h5 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
618 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
619 parbox[1] = half_thick_alu;
620 parbox[2] = half_thick_qua5;
621 gMC->Gsvolu("V0E3","BOX",idtmed[3004],parbox,3);
622 gMC->Gspos("V0E3",1,"V0R5",0.0, - (height5/2.0) + half_thick_alu ,0.0,0,"ONLY");
625 parbox[0] = TMath::Tan(theta) * r5;
626 parbox[1] = half_thick_alu;
627 parbox[2] = half_thick_qua5;
628 gMC->Gsvolu("V0E4","BOX",idtmed[3004],parbox,3);
629 gMC->Gspos("V0E4",1,"V0R5",0.0, (height5/2.0) - half_thick_alu,0.0,0,"ONLY");
633 Float_t phi_deg = 180./6.;
635 // Partie de droite :
637 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
639 phi_rad = phi*pi/180.;
640 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
641 gMC->Gspos("V0R0",n_detec_R,"V0RI",-dist0*TMath::Sin(phi_rad),
642 dist0*TMath::Cos(phi_rad),offset + half_thick_qua1,idrotm[902],"ONLY");
646 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,zdet,0,"ONLY");
648 n_cells_R = (n_detec_R - 1) * 5;
650 printf(" Number of cells on Right side = %d\n", n_cells_R);
652 // Partie de gauche :
654 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
656 phi_rad = phi*pi/180.;
657 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
658 gMC->Gspos("V0L0",n_detec_L,"V0LE",-dist0_left*TMath::Sin(phi_rad),
659 dist0_left*TMath::Cos(phi_rad),offset_left + half_thick_qua1,idrotm[902],"ONLY");
664 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,-350.0-fThickness1/2.0,0,"ONLY");
666 n_cells_L = (n_detec_L - 1) * 5;
668 printf(" Number of cells on Left side = %d\n\n", n_cells_L);
675 //_____________________________________________________________________________
676 void AliVZEROv0::BuildGeometry()
679 // Builds simple ROOT TNode geometry for event display
685 for(i=0;i<30;i++) printf("*");
686 printf(" VZERO BuildGeometry ");
687 for(i=0;i<30;i++) printf("*");
692 TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
693 TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
694 TNode *V0Lnode, *V0Lnode0;
695 TNode *V0Lnode1, *V0Lnode2, *V0Lnode3, *V0Lnode4, *V0Lnode5;
697 const int kColorVZERO = kGreen;
699 Top = gAlice->GetGeometry()->GetNode("alice");
701 Float_t height1, height2, height3, height4, height5;
704 Float_t half_thick_alu;
705 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
706 Float_t half_thick_qua4,half_thick_qua5;
709 Float_t pi = TMath::Pi();
718 height1 = 2.0; // height of cell 1, in cm
719 height2 = 3.2; // height of cell 2, in cm
720 height3 = 4.9; // height of cell 3, in cm
721 height4 = 7.5; // height of cell 4, in cm
722 height5 = 12.0; // height of cell 5, in cm
725 half_thick_alu = 0.0025;
726 thick_alu = 2.0 * half_thick_alu;
727 half_thick_qua1 = fThickness1/2.0;
728 half_thick_qua2 = half_thick_qua1 - 0.25;
729 half_thick_qua3 = half_thick_qua2 - 0.25;
730 half_thick_qua4 = half_thick_qua3 - 0.25;
731 half_thick_qua5 = half_thick_qua4 - 0.25;
733 zdet = 86.9 +fThickness/2.0;
735 height = height1 + height2 + height3 + height4 + height5;
740 partube[0] = r0 - 0.2;
741 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
742 partube[2] = fThickness/2.0;
744 TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
748 V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
750 V0Rnode->SetLineColor(kBlue);
751 fNodes->Add(V0Rnode);
753 V0Rnode->SetVisibility(2);
756 // Rondelles de carbone (epaisseur 1 mm) de maintien des cellules ...
765 parbox[4] = -0.1/2.0;
768 parbox[7] = +0.1/2.0;
773 TPGON *V0CA = new TPGON("V0CA", "V0CA", "void",parbox[0], parbox[1],
774 static_cast<Int_t>(parbox[2]),
775 static_cast<Int_t>(parbox[3]));
777 V0CA->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
778 V0CA->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
781 V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-parbox[7],0);
782 V0Rnode6->SetLineColor(kYellow);
783 fNodes->Add(V0Rnode6);
785 V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+parbox[7],0);
786 V0Rnode7->SetLineColor(kYellow);
787 fNodes->Add(V0Rnode7);
789 parbox[4] = -fThickness/2.0;
790 parbox[5] = r0 - 0.2;
792 parbox[7] = +fThickness/2.0;
793 parbox[8] = r0 - 0.2;
796 TPGON *V0IR = new TPGON("V0IR","V0IR","void", parbox[0], parbox[1],
797 static_cast<Int_t>(parbox[2]),
798 static_cast<Int_t>(parbox[3]));
799 V0IR->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
800 V0IR->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
803 V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
804 V0Rnode8->SetLineColor(kYellow);
805 fNodes->Add(V0Rnode8);
807 parbox[4] = -fThickness/2.0;
809 parbox[6] = r5 + 1.0;
810 parbox[7] = +fThickness/2.0;
812 parbox[9] = r5 + 1.0;
814 TPGON *V0ER = new TPGON("V0ER","V0ER","void", parbox[0], parbox[1],
815 static_cast<Int_t>(parbox[2]),
816 static_cast<Int_t>(parbox[3]));
818 V0ER->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
819 V0ER->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
822 V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
823 V0Rnode9->SetLineColor(kYellow);
824 fNodes->Add(V0Rnode9);
829 dist0 = r0 + height / 2.0;
830 thick_alu = 2.0*half_thick_alu;
832 par[0] = half_thick_qua1;
835 par[3] = height / 2.0 ;
836 par[4] = TMath::Tan(theta) * r0;
837 par[5] = TMath::Tan(theta) * r5;
839 par[7] = height / 2.0 ;
840 par[8] = TMath::Tan(theta) * r0;
841 par[9] = TMath::Tan(theta) * r5;
844 TTRAP *V0R0 = new TTRAP("V0R0", "V0R0", "void", par[0], par[1], par[2], par[3],
845 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
851 dist1 = (- height + height1) /2.0;
853 offset = - fThickness/2.0 + 0.1;
855 par[0] = half_thick_qua1 - thick_alu;
856 par[3] = height1 / 2.0 - thick_alu;
857 par[4] = TMath::Tan(theta) * r0 - thick_alu;
858 par[5] = TMath::Tan(theta) * r1- thick_alu;
859 par[7] = height1 / 2.0 - thick_alu;
860 par[8] = TMath::Tan(theta) * r0 - thick_alu;
861 par[9] = TMath::Tan(theta) * r1 - thick_alu;
863 TTRAP *V0R1 = new TTRAP("V0R1", "V0R1", "void", par[0], par[1], par[2], par[3],
864 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
870 dist2 = (- height + height2) /2.0 + height1;
873 par[0] = half_thick_qua2 - thick_alu;
874 par[3] = height2 / 2.0 - thick_alu;
875 par[4] = TMath::Tan(theta) * r1 - thick_alu;
876 par[5] = TMath::Tan(theta) * r2 - thick_alu;
877 par[7] = height2 / 2.0 - thick_alu;
878 par[8] = TMath::Tan(theta) * r1 - thick_alu;
879 par[9] = TMath::Tan(theta) * r2 - thick_alu;
882 TTRAP *V0R2 = new TTRAP("V0R2", "V0R2", "void", par[0], par[1], par[2], par[3],
883 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
889 dist3 = (- height + height3) /2.0 + height1 + height2;
892 par[0] = half_thick_qua3 - thick_alu;
893 par[3] = height3 / 2.0 - thick_alu;
894 par[4] = TMath::Tan(theta) * r2 - thick_alu;
895 par[5] = TMath::Tan(theta) * r3 - thick_alu;
896 par[7] = height3 / 2.0 - thick_alu;
897 par[8] = TMath::Tan(theta) * r2 - thick_alu;
898 par[9] = TMath::Tan(theta) * r3 - thick_alu;
901 TTRAP *V0R3 = new TTRAP("V0R3", "V0R3", "void", par[0], par[1], par[2], par[3],
902 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
908 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
911 par[0] = half_thick_qua4 - thick_alu;
912 par[3] = height4 / 2.0 - thick_alu;
913 par[4] = TMath::Tan(theta) * r3 - thick_alu;
914 par[5] = TMath::Tan(theta) * r4 - thick_alu;
915 par[7] = height4 / 2.0 - thick_alu;
916 par[8] = TMath::Tan(theta) * r3 - thick_alu;
917 par[9] = TMath::Tan(theta) * r4 - thick_alu;
920 TTRAP *V0R4 = new TTRAP("V0R4", "V0R4", "void", par[0], par[1], par[2], par[3],
921 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
926 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
928 par[0] = half_thick_qua5 - thick_alu;
929 par[3] = height5 / 2.0 - thick_alu;
930 par[4] = TMath::Tan(theta) * r4 - thick_alu;
931 par[5] = TMath::Tan(theta) * r5 - thick_alu;
932 par[7] = height5 / 2.0 - thick_alu;
933 par[8] = TMath::Tan(theta) * r4 - thick_alu;
934 par[9] = TMath::Tan(theta) * r5 - thick_alu;
937 TTRAP *V0R5 = new TTRAP("V0R5", "V0R5", "void", par[0], par[1], par[2], par[3],
938 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
942 Float_t phi_deg= 180./6.;
950 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
953 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
955 phi_rad = phi*pi/180.;
956 xdet = dist0*TMath::Sin(phi_rad);
957 ydet = dist0*TMath::Cos(phi_rad);
960 sprintf(NameNode,"SUBDER%d",n_detec_R);
963 V0Rnode0 = new TNode(NameNode,NameNode,V0R0,-xdet,ydet, offset + half_thick_qua1,mat920);
964 V0Rnode0->SetLineColor(kColorVZERO);
965 fNodes->Add(V0Rnode0);
968 sprintf(NameNode,"SUBDER%d",n_detec_R);
970 V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,dist1, 0.0,0);
971 V0Rnode1->SetLineColor(kColorVZERO);
972 fNodes->Add(V0Rnode1);
975 sprintf(NameNode,"SUBDER%d",n_detec_R);
977 V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,dist2, - half_thick_qua1 + half_thick_qua2,0);
978 V0Rnode2->SetLineColor(kColorVZERO);
979 fNodes->Add(V0Rnode2);
983 sprintf(NameNode,"SUBDER%d",n_detec_R);
985 V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,dist3, - half_thick_qua1 + half_thick_qua3,0);
986 V0Rnode3->SetLineColor(kColorVZERO);
987 fNodes->Add(V0Rnode3);
990 sprintf(NameNode,"SUBDER%d",n_detec_R);
992 V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,dist4, - half_thick_qua1 + half_thick_qua4,0);
993 V0Rnode4->SetLineColor(kColorVZERO);
994 fNodes->Add(V0Rnode4);
997 sprintf(NameNode,"SUBDER%d",n_detec_R);
999 V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,dist5, - half_thick_qua1 + half_thick_qua5,0);
1000 V0Rnode5->SetLineColor(kColorVZERO);
1001 fNodes->Add(V0Rnode5);
1004 V0Rnode0->SetVisibility(2);
1009 // Left side of VZERO :
1013 Float_t r0_left = 4.3;
1014 Float_t height1_left = 2.6;
1015 Float_t height2_left = 4.1;
1016 Float_t height3_left = 6.4;
1017 Float_t height4_left = 10.2;
1018 Float_t height5_left = 16.9;
1019 Float_t height_left = height1_left + height2_left + height3_left
1020 + height4_left + height5_left;
1021 Float_t r5_left = r0_left + height_left;
1023 partube[0] = r0_left;
1024 partube[1] = (r5_left) / TMath::Cos(theta);
1025 partube[2] = fThickness1/2.0;
1027 TTUBE *V0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
1031 V0Lnode = new TNode("V0LE","V0LE",V0LE,0.0,0.0,-350.0-fThickness1/2.0,0);
1033 V0Lnode->SetLineColor(kBlue);
1034 fNodes->Add(V0Lnode);
1036 V0Lnode->SetVisibility(2);
1038 dist0_left = r0_left + height_left / 2.0;
1039 thick_alu = 2.0*half_thick_alu;
1041 par[0] = half_thick_qua1;
1044 par[3] = height_left / 2.0 ;
1045 par[4] = TMath::Tan(theta) * r0_left;
1046 par[5] = TMath::Tan(theta) * r5_left;
1048 par[7] = height_left / 2.0 ;
1049 par[8] = TMath::Tan(theta) * r0_left;
1050 par[9] = TMath::Tan(theta) * r5_left;
1053 TTRAP *V0L0 = new TTRAP("V0L0", "V0L0", "void", par[0], par[1], par[2], par[3],
1054 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1059 Float_t offset_left;
1061 dist1_left = (- height_left + height1_left) /2.0;
1062 r1_left = r0_left + height1_left;
1063 offset_left = - fThickness1/2.0 + 0.1;
1065 par[0] = half_thick_qua1 - thick_alu;
1066 par[3] = height1_left / 2.0 - thick_alu;
1067 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
1068 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
1069 par[7] = height1_left / 2.0 - thick_alu;
1070 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
1071 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
1073 TTRAP *V0L1 = new TTRAP("V0L1", "V0L1", "void", par[0], par[1], par[2], par[3],
1074 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1079 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
1080 r2_left = r1_left + height2_left;
1082 par[0] = half_thick_qua1 - thick_alu;
1083 par[3] = height2_left / 2.0 - thick_alu;
1084 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
1085 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
1086 par[7] = height2_left / 2.0 - thick_alu;
1087 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
1088 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
1090 TTRAP *V0L2 = new TTRAP("V0L2", "V0L2", "void", par[0], par[1], par[2], par[3],
1091 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1098 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
1099 r3_left = r2_left + height3_left;
1101 par[0] = half_thick_qua1 - thick_alu;
1102 par[3] = height3_left / 2.0 - thick_alu;
1103 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
1104 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
1105 par[7] = height3_left / 2.0 - thick_alu;
1106 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
1107 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
1109 TTRAP *V0L3 = new TTRAP("V0L3", "V0L3", "void", par[0], par[1], par[2], par[3],
1110 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1116 dist4_left = (- height_left + height4_left) /2.0 + height1_left
1117 + height2_left + height3_left;
1118 r4_left = r3_left + height4_left;
1120 par[0] = half_thick_qua1 - thick_alu;
1121 par[3] = height4_left / 2.0 - thick_alu;
1122 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
1123 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
1124 par[7] = height4_left / 2.0 - thick_alu;
1125 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
1126 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
1128 TTRAP *V0L4 = new TTRAP("V0L4", "V0L4", "void", par[0], par[1], par[2], par[3],
1129 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1135 dist5_left = (- height_left + height5_left) /2.0 + height1_left
1136 + height2_left + height3_left + height4_left;
1139 par[0] = half_thick_qua1 - thick_alu;
1140 par[3] = height5_left / 2.0 - thick_alu;
1141 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
1142 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
1143 par[7] = height5_left / 2.0 - thick_alu;
1144 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
1145 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
1147 TTRAP *V0L5 = new TTRAP("V0L5", "V0L5", "void", par[0], par[1], par[2], par[3],
1148 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1151 Int_t n_detec_L = 1;
1153 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
1156 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
1158 phi_rad = phi*pi/180.;
1159 xdet = dist0_left*TMath::Sin(phi_rad);
1160 ydet = dist0_left*TMath::Cos(phi_rad);
1163 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1166 V0Lnode0 = new TNode(NameNode,NameNode,V0L0,-xdet,ydet, offset_left + half_thick_qua1,mat920);
1167 V0Lnode0->SetLineColor(kColorVZERO);
1168 fNodes->Add(V0Lnode0);
1171 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1173 V0Lnode1 = new TNode(NameNode,NameNode,V0L1,0.0,dist1_left, 0.0,0);
1174 V0Lnode1->SetLineColor(kColorVZERO);
1175 fNodes->Add(V0Lnode1);
1178 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1180 V0Lnode2 = new TNode(NameNode,NameNode,V0L2,0.0,dist2_left, 0.0,0);
1181 V0Lnode2->SetLineColor(kColorVZERO);
1182 fNodes->Add(V0Lnode2);
1186 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1188 V0Lnode3 = new TNode(NameNode,NameNode,V0L3,0.0,dist3_left, 0.0,0);
1189 V0Lnode3->SetLineColor(kColorVZERO);
1190 fNodes->Add(V0Lnode3);
1193 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1195 V0Lnode4 = new TNode(NameNode,NameNode,V0L4,0.0,dist4_left, 0.0,0);
1196 V0Lnode4->SetLineColor(kColorVZERO);
1197 fNodes->Add(V0Lnode4);
1200 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1202 V0Lnode5 = new TNode(NameNode,NameNode,V0L5,0.0,dist5_left, 0.0,0);
1203 V0Lnode5->SetLineColor(kColorVZERO);
1204 fNodes->Add(V0Lnode5);
1207 V0Lnode0->SetVisibility(2);
1215 //------------------------------------------------------------------------
1216 void AliVZEROv0::CreateMaterials()
1221 for(i=0;i<30;i++) printf("*");
1222 printf(" VZERO create materials ");
1223 for(i=0;i<30;i++) printf("*");
1227 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,
1228 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
1231 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,
1232 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
1234 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
1235 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
1236 1.662295, 1.68337 };
1238 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
1239 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
1241 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1244 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1247 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,
1248 1e-4,1e-4,1e-4,1e-4 };
1249 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1252 Int_t *idtmed = fIdtmed->GetArray()-2999;
1255 // Parameters related to Quarz (SiO2) :
1257 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
1269 // Parameters related to aluminum sheets :
1271 Float_t aal = 26.98;
1272 Float_t zal = 13.00;
1273 Float_t densal= 2.7;
1274 Float_t radlal= 8.9;
1276 // Parameters related to scintillator CH :
1278 Float_t ascin[2] = {1.01,12.01};
1279 Float_t zscin[2] = {1,6};
1280 Float_t wscin[2] = {1,1};
1281 Float_t denscin = 1.03;
1283 // Definition of materials :
1285 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1286 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1287 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
1288 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
1289 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
1290 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
1293 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
1296 Int_t ISXFLD = gAlice->Field()->Integ();
1297 Float_t SXMGMX = gAlice->Field()->Max();
1299 Float_t tmaxfd, stemax, deemax, epsil, stmin;
1308 printf(" StepQua, StepAlu = %f %f \n",fMaxStepQua,fMaxStepAlu);
1309 printf(" DeStepQua, DeStepAlu = %f %f \n",fMaxDestepQua,fMaxDestepAlu);
1314 AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX,
1315 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
1319 AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX,
1320 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
1322 AliMedium(2, "CARBON$ ", 2, 1, ISXFLD, SXMGMX,
1323 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
1325 AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX,
1326 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
1328 AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX,
1329 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1332 AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX,
1333 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1335 AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003, 0, 0);
1337 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
1338 gMC->Gstpar(idtmed[3000], "HADR", 1.);
1339 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
1340 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
1342 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
1343 gMC->Gstpar(idtmed[3001], "HADR", 1.);
1344 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
1345 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
1347 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
1348 gMC->Gstpar(idtmed[3002], "HADR", 1.);
1349 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
1350 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
1351 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
1352 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
1354 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
1355 gMC->Gstpar(idtmed[3003], "HADR", 1.);
1356 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
1357 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
1359 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
1360 gMC->Gstpar(idtmed[3004], "HADR", 1.);
1361 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
1362 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
1363 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
1364 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
1366 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
1367 gMC->Gstpar(idtmed[3005], "HADR", 1.);
1368 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
1369 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
1371 gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
1372 gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
1376 //---------------------------------------------------------------------
1377 void AliVZEROv0::DrawModule()
1380 // Drawing is done in DrawVZERO.C
1385 for(i=0;i<30;i++) printf("*");
1386 printf(" VZERO DrawModule ");
1387 for(i=0;i<30;i++) printf("*");
1393 //-------------------------------------------------------------------
1394 void AliVZEROv0::Init()
1396 // Initialises version 0 of the VZERO Detector
1397 // Just prints an information message
1399 printf(" VZERO version %d initialized \n",IsVersion());
1401 // gMC->SetMaxStep(fMaxStepAlu);
1402 // gMC->SetMaxStep(fMaxStepQua);
1404 // AliVZERO::Init();
1408 //-------------------------------------------------------------------
1410 void AliVZEROv0::StepManager()
1413 // (Very)Minimal version of StepManager
1417 static Int_t vol[4];
1418 static Float_t hits[15];
1425 Float_t kRaddeg = 180/TMath::Pi();
1431 // TGeant3 *geant3 = (TGeant3*) gMC;
1432 // Int_t Nphot = geant3->Gckin2()->ngphot;
1435 // Only charged tracks :
1437 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
1440 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
1441 vol[2] = gMC->CurrentVolID(copy);
1444 if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
1445 gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
1447 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
1448 gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
1450 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
1451 gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
1453 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
1454 gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
1456 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
1457 gMC->CurrentVolID(copy) == gMC->VolId("V0L5") )
1462 if (gMC->IsTrackEntering() && RingNumber > 0.5) {
1464 gMC->TrackPosition(pos);
1466 gMC->TrackMomentum(mom);
1467 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1468 Double_t Pt = TMath::Sqrt(tc);
1469 Double_t Pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1471 theta = Float_t(TMath::ATan2(Pt,Double_t(mom[2])))*kRaddeg;
1472 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1474 ipart = gMC->TrackPid();
1481 // Float_t ttime = gMC->TrackTime();
1482 // hits[4] = ttime*1e9;
1484 hits[4] = gMC->TrackTime();
1485 hits[5] = gMC->TrackCharge();
1488 hits[8] = RingNumber;
1497 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1503 //_____________________________________________________________________________
1504 void AliVZEROv0::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1510 TClonesArray &lhits = *fHits;
1511 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1514 //---------------------------------------------------------------------
1515 void AliVZEROv0::AddDigits(Int_t *tracks, Int_t* digits)
1518 TClonesArray &ldigits = *fDigits;
1519 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1522 //---------------------------------------------------------------------
1523 void AliVZEROv0::MakeBranch(Option_t *option)
1526 // Creates new branches in the current Root Tree
1529 char branchname[10];
1530 sprintf(branchname,"%s",GetName());
1531 printf(" fBufferSize = %d \n",fBufferSize);
1533 const char *H = strstr(option,"H");
1535 if (fHits && TreeH() && H) {
1536 TreeH()->Branch(branchname,&fHits, fBufferSize);
1537 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1540 const char *D = strstr(option,"D");
1542 if (fDigits && gAlice->TreeD() && D) {
1543 gAlice->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1544 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);