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"
59 //--------------------------------------------------------------------
60 AliVZEROv0:: AliVZEROv0():AliVZERO()
65 //--------------------------------------------------------------------
66 AliVZEROv0::AliVZEROv0(const char *name, const char *title):
70 // Standard constructor for V-zeroR Detector (right part) version 0
76 for(i=0;i<30;i++) printf("*");
77 printf(" Create VZERO object ");
78 for(i=0;i<30;i++) printf("*");
83 //-------------------------------------------------------------------------
84 void AliVZEROv0::CreateGeometry()
87 // Creates the Geant geometry of the V-zero Detector version 0
93 for(i=0;i<30;i++) printf("*");
94 printf(" Create VZERO Geometry ");
95 for(i=0;i<30;i++) printf("*");
99 Int_t *idtmed = fIdtmed->GetArray()-2999;
109 Float_t height1, height2, height3, height4, height5;
112 Float_t half_thick_alu;
113 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
114 Float_t half_thick_qua4,half_thick_qua5;
117 Float_t pi = TMath::Pi();
120 height1 = 2.0; // height of cell 1, in cm
121 height2 = 3.2; // height of cell 2, in cm
122 height3 = 4.9; // height of cell 3, in cm
123 height4 = 7.5; // height of cell 4, in cm
124 height5 = 12.0; // height of cell 5, in cm
126 theta = pi/6.0/2.0; // half angular opening = 15 degrees
127 half_thick_alu = 0.0025; // half thickness of aluminum foil, in cm
128 thick_alu = 2.0 * half_thick_alu;
130 half_thick_qua1 = fThickness1/2.0; // half thickness of WRAPPED quartz cell (inner ring)
131 half_thick_qua2 = half_thick_qua1 - 0.25;
132 half_thick_qua3 = half_thick_qua2 - 0.25;
133 half_thick_qua4 = half_thick_qua3 - 0.25;
134 half_thick_qua5 = half_thick_qua4 - 0.25;
136 zdet = 86.9 +fThickness/2.0; // distance to vertex (along Z axis)
137 r0 = 4.0; // closest distance to center of the beam pipe
138 height = height1 + height2 + height3 + height4 + height5;
141 //............................................................................
143 // Here I add the flange which is sitting on beam line
144 // right in front of V0R detector, and which I found on CERN drawing
145 // entitled : ALICE BEAM VACCUM CHAMBER - RB26 version III :
147 // Float_t pflange[3];
150 // pflange[1] = 5.675;
153 // gMC->Gsvolu("QFA0","TUBE", idtmed[3003], pflange, 3);
154 // gMC->Gspos("QFA0", 1 ,"ALIC", 0.0, 0.0, 85.0+0.9, 0, "ONLY");
156 //............................................................................
159 // Creation of mother volume V0LE - left part - :
160 // Face entree a -350.0 cm ...
166 partube[2] = fThickness1/2.0;
168 gMC->Gsvolu("V0LE","TUBE",idtmed[3002],partube,3);
171 // Creation of five rings - left part - :
172 // Face entree a -350.0 cm ...
174 // Mother volume V0L0 in which will be set 5 quartz cells
180 Float_t r0_left = 4.3;
181 Float_t height1_left = 2.6;
182 Float_t height2_left = 4.1;
183 Float_t height3_left = 6.4;
184 Float_t height4_left = 10.2;
185 Float_t height5_left = 16.9;
186 Float_t height_left = height1_left + height2_left + height3_left
187 + height4_left + height5_left;
188 Float_t r5_left = r0_left + height_left;
191 dist0_left = r0_left + height_left / 2.0;
192 thick_alu = 2.0*half_thick_alu;
194 par[0] = half_thick_qua1;
197 par[3] = height_left / 2.0 ;
198 par[4] = TMath::Tan(theta) * r0_left;
199 par[5] = TMath::Tan(theta) * r5_left;
201 par[7] = height_left / 2.0 ;
202 par[8] = TMath::Tan(theta) * r0_left;
203 par[9] = TMath::Tan(theta) * r5_left;
207 gMC->Gsvolu("V0L0","TRAP",idtmed[3010],par,11); // air volume
213 dist1_left = (- height_left + height1_left) /2.0;
214 r1_left = r0_left + height1_left;
215 offset_left = - fThickness1/2.0 + 0.1;
217 par[0] = half_thick_qua1 - thick_alu;
218 par[3] = height1_left / 2.0 - thick_alu;
219 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
220 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
221 par[7] = height1_left / 2.0 - thick_alu;
222 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
223 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
226 gMC->Gsvolu("V0L1","TRAP",idtmed[3002],par,11); // quartz volume
227 gMC->Gspos("V0L1",1,"V0L0", 0.0, dist1_left , 0.0, 0,"ONLY");
232 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
233 r2_left = r1_left + height2_left;
235 par[0] = half_thick_qua1 - thick_alu;
236 par[3] = height2_left / 2.0 - thick_alu;
237 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
238 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
239 par[7] = height2_left / 2.0 - thick_alu;
240 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
241 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
243 gMC->Gsvolu("V0L2","TRAP",idtmed[3002],par,11); // quartz volume
244 gMC->Gspos("V0L2",1,"V0L0", 0.0, dist2_left , 0.0, 0,"ONLY");
250 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
251 r3_left = r2_left + height3_left;
253 par[0] = half_thick_qua1 - thick_alu;
254 par[3] = height3_left / 2.0 - thick_alu;
255 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
256 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
257 par[7] = height3_left / 2.0 - thick_alu;
258 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
259 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
261 gMC->Gsvolu("V0L3","TRAP",idtmed[3002],par,11); // quartz volume
262 gMC->Gspos("V0L3",1,"V0L0", 0.0, dist3_left , 0.0, 0,"ONLY");
267 dist4_left = (- height_left + height4_left) /2.0 + height1_left
268 + height2_left + height3_left;
269 r4_left = r3_left + height4_left;
271 par[0] = half_thick_qua1 - thick_alu;
272 par[3] = height4_left / 2.0 - thick_alu;
273 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
274 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
275 par[7] = height4_left / 2.0 - thick_alu;
276 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
277 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
279 gMC->Gsvolu("V0L4","TRAP",idtmed[3002],par,11); // quartz volume
280 gMC->Gspos("V0L4",1,"V0L0", 0.0, dist4_left , 0.0, 0,"ONLY");
286 dist5_left = (- height_left + height5_left) /2.0 + height1_left
287 + height2_left + height3_left + height4_left;
290 par[0] = half_thick_qua1 - thick_alu;
291 par[3] = height5_left / 2.0 - thick_alu;
292 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
293 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
294 par[7] = height5_left / 2.0 - thick_alu;
295 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
296 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
298 gMC->Gsvolu("V0L5","TRAP",idtmed[3002],par,11); // quartz volume
299 gMC->Gspos("V0L5",1,"V0L0", 0.0, dist5_left , 0.0, 0,"ONLY");
302 //............................................................................
304 // Creation of mother volume V0RI - right part - :
307 partube[0] = r0 - 0.2;
308 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
309 partube[2] = fThickness/2.0;
312 gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
314 // Creation of carbon lids (1 mm thick) to keep V0RI box shut...
322 parbox[4] = -0.1/2.0;
325 parbox[7] = +0.1/2.0;
330 gMC->Gsvolu("V0CA","PGON",idtmed[3001],parbox,10);
331 gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-parbox[7],0,"ONLY");
332 gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+parbox[7],0,"ONLY");
334 // Creation of aluminum rings to maintain the V0RI pieces ...
336 parbox[4] = -fThickness/2.0;
339 parbox[7] = +fThickness/2.0;
343 gMC->Gsvolu("V0IR","PGON",idtmed[3003],parbox,10);
344 gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
346 parbox[4] = -fThickness/2.0;
348 parbox[6] = r5 + 1.0;
349 parbox[7] = +fThickness/2.0;
351 parbox[9] = r5 + 1.0;
353 gMC->Gsvolu("V0ER","PGON",idtmed[3003],parbox,10);
354 gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
356 // Mother volume V0R0 in which will be set 5 quartz cells
357 // each one WRAPPED in reflecting aluminum :
361 dist0 = r0 + height / 2.0;
362 thick_alu = 2.0*half_thick_alu;
364 par[0] = half_thick_qua1;
367 par[3] = height / 2.0 ;
368 par[4] = TMath::Tan(theta) * r0;
369 par[5] = TMath::Tan(theta) * r5;
371 par[7] = height / 2.0 ;
372 par[8] = TMath::Tan(theta) * r0;
373 par[9] = TMath::Tan(theta) * r5;
377 gMC->Gsvolu("V0R0","TRAP",idtmed[3010],par,11); // air volume
379 // Elementary cell of ring 1 :
385 dist1 = (- height + height1) /2.0;
387 offset = - fThickness/2.0 + 0.1;
389 par[0] = half_thick_qua1 - thick_alu;
390 par[3] = height1 / 2.0 - thick_alu;
391 par[4] = TMath::Tan(theta) * r0 - thick_alu;
392 par[5] = TMath::Tan(theta) * r1- thick_alu;
393 par[7] = height1 / 2.0 - thick_alu;
394 par[8] = TMath::Tan(theta) * r0 - thick_alu;
395 par[9] = TMath::Tan(theta) * r1 - thick_alu;
398 gMC->Gsvolu("V0R1","TRAP",idtmed[3002],par,11); // quartz volume
399 gMC->Gspos("V0R1",1,"V0R0", 0.0, dist1 , 0.0, 0,"ONLY");
401 par[0] = half_thick_alu;
403 gMC->Gsvolu("V0A1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
404 gMC->Gspos("V0A1",1,"V0R1",0.0,0.0, - half_thick_qua1 + half_thick_alu,0,"ONLY");
405 gMC->Gspos("V0A1",2,"V0R1",0.0,0.0, + half_thick_qua1 - half_thick_alu,0,"ONLY");
407 parbox[0] = half_thick_alu;
408 parbox[1] = height1 / TMath::Cos(theta)/ 2.0;
409 parbox[2] = half_thick_qua1;
411 gMC->Gsvolu("V0A2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
412 Float_t theta_deg = 180./6./2.0;
414 h1 = TMath::Tan(theta) * (r0 + height1/2.0);
415 AliMatrix(idrotm[911],90.0,+theta_deg,90.0,90.+theta_deg,0.0,0.);
416 gMC->Gspos("V0A2",1,"V0R1",-h1 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
417 AliMatrix(idrotm[912],90.0,-theta_deg,90.0,90.-theta_deg,0.0,0.);
418 gMC->Gspos("V0A2",2,"V0R1",+h1 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
420 parbox[0] = TMath::Tan(theta) * r0;
421 parbox[1] = half_thick_alu;
422 parbox[2] = half_thick_qua1;
423 gMC->Gsvolu("V0A3","BOX",idtmed[3004],parbox,3);
424 gMC->Gspos("V0A3",1,"V0R1",0.0, - (height1/2.0) + half_thick_alu ,0.0,0,"ONLY");
427 parbox[0] = TMath::Tan(theta) * (r0 + height1);
428 parbox[1] = half_thick_alu;
429 parbox[2] = half_thick_qua1;
430 gMC->Gsvolu("V0A4","BOX",idtmed[3004],parbox,3);
431 gMC->Gspos("V0A4",1,"V0R1",0.0, (height1/2.0) - half_thick_alu,0.0,0,"ONLY");
434 // Elementary cell of ring 2 :
439 dist2 = (- height + height2) /2.0 + height1;
442 par[0] = half_thick_qua2 - thick_alu;
443 par[3] = height2 / 2.0 - thick_alu;
444 par[4] = TMath::Tan(theta) * r1 - thick_alu;
445 par[5] = TMath::Tan(theta) * r2 - thick_alu;
446 par[7] = height2 / 2.0 - thick_alu;
447 par[8] = TMath::Tan(theta) * r1 - thick_alu;
448 par[9] = TMath::Tan(theta) * r2 - thick_alu;
450 gMC->Gsvolu("V0R2","TRAP",idtmed[3002],par,11); // quartz volume
451 gMC->Gspos("V0R2",1,"V0R0", 0.0, dist2 , - half_thick_qua1 + half_thick_qua2, 0,"ONLY");
453 par[0] = half_thick_alu;
455 gMC->Gsvolu("V0B1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
456 gMC->Gspos("V0B1",1,"V0R2",0.0,0.0, - half_thick_qua2 + half_thick_alu,0,"ONLY");
457 gMC->Gspos("V0B1",2,"V0R2",0.0,0.0, + half_thick_qua2 - half_thick_alu,0,"ONLY");
459 parbox[0] = half_thick_alu;
460 parbox[1] = height2 / TMath::Cos(theta)/ 2.0;
461 parbox[2] = half_thick_qua2;
463 gMC->Gsvolu("V0B2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
465 h2 = TMath::Tan(theta) * (r0 + height1 + height2/2.0);
466 gMC->Gspos("V0B2",1,"V0R2",-h2 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
467 gMC->Gspos("V0B2",2,"V0R2",+h2 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
469 parbox[0] = TMath::Tan(theta) * (r0 + height1);
470 parbox[1] = half_thick_alu;
471 parbox[2] = half_thick_qua2;
472 gMC->Gsvolu("V0B3","BOX",idtmed[3004],parbox,3);
473 gMC->Gspos("V0B3",1,"V0R2",0.0, - (height2/2.0) + half_thick_alu ,0.0,0,"ONLY");
476 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
477 parbox[1] = half_thick_alu;
478 parbox[2] = half_thick_qua2;
479 gMC->Gsvolu("V0B4","BOX",idtmed[3004],parbox,3);
480 gMC->Gspos("V0B4",1,"V0R2",0.0, (height2/2.0) - half_thick_alu,0.0,0,"ONLY");
483 // Elementary cell ring 3 :
488 dist3 = (- height + height3) /2.0 + height1 + height2;
491 par[0] = half_thick_qua3 - thick_alu;
492 par[3] = height3 / 2.0 - thick_alu;
493 par[4] = TMath::Tan(theta) * r2 - thick_alu;
494 par[5] = TMath::Tan(theta) * r3 - thick_alu;
495 par[7] = height3 / 2.0 - thick_alu;
496 par[8] = TMath::Tan(theta) * r2 - thick_alu;
497 par[9] = TMath::Tan(theta) * r3 - thick_alu;
499 gMC->Gsvolu("V0R3","TRAP",idtmed[3002],par,11); // quartz volume
500 gMC->Gspos("V0R3",1,"V0R0", 0.0, dist3 , - half_thick_qua1 + half_thick_qua3, 0,"ONLY");
503 par[0] = half_thick_alu;
505 gMC->Gsvolu("V0C1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
506 gMC->Gspos("V0C1",1,"V0R3",0.0,0.0, - half_thick_qua3 + half_thick_alu,0,"ONLY");
507 gMC->Gspos("V0C1",2,"V0R3",0.0,0.0, + half_thick_qua3 - half_thick_alu,0,"ONLY");
509 parbox[0] = half_thick_alu;
510 parbox[1] = height3 / TMath::Cos(theta)/ 2.0;
511 parbox[2] = half_thick_qua3;
513 gMC->Gsvolu("V0C2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
515 h3 = TMath::Tan(theta) * (r0 + height1 + height2 + height3/2.0);
516 gMC->Gspos("V0C2",1,"V0R3",-h3 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
517 gMC->Gspos("V0C2",2,"V0R3",+h3 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
519 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2);
520 parbox[1] = half_thick_alu;
521 parbox[2] = half_thick_qua3;
522 gMC->Gsvolu("V0C3","BOX",idtmed[3004],parbox,3);
523 gMC->Gspos("V0C3",1,"V0R3",0.0, - (height3/2.0) + half_thick_alu ,0.0,0,"ONLY");
526 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
527 parbox[1] = half_thick_alu;
528 parbox[2] = half_thick_qua3;
529 gMC->Gsvolu("V0C4","BOX",idtmed[3004],parbox,3);
530 gMC->Gspos("V0C4",1,"V0R3",0.0, (height3/2.0) - half_thick_alu,0.0,0,"ONLY");
533 // Elementary cell ring 4 :
538 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
541 par[0] = half_thick_qua4 - thick_alu;
542 par[3] = height4 / 2.0 - thick_alu;
543 par[4] = TMath::Tan(theta) * r3 - thick_alu;
544 par[5] = TMath::Tan(theta) * r4 - thick_alu;
545 par[7] = height4 / 2.0 - thick_alu;
546 par[8] = TMath::Tan(theta) * r3 - thick_alu;
547 par[9] = TMath::Tan(theta) * r4 - thick_alu;
549 gMC->Gsvolu("V0R4","TRAP",idtmed[3002],par,11); // quartz volume
550 gMC->Gspos("V0R4",1,"V0R0", 0.0, dist4 , - half_thick_qua1 + half_thick_qua4, 0,"ONLY");
553 par[0] = half_thick_alu;
555 gMC->Gsvolu("V0D1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
556 gMC->Gspos("V0D1",1,"V0R4",0.0,0.0, - half_thick_qua4 + half_thick_alu,0,"ONLY");
557 gMC->Gspos("V0D1",2,"V0R4",0.0,0.0, + half_thick_qua4 - half_thick_alu,0,"ONLY");
559 parbox[0] = half_thick_alu;
560 parbox[1] = height4 / TMath::Cos(theta)/ 2.0;
561 parbox[2] = half_thick_qua4;
563 gMC->Gsvolu("V0D2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
565 h4 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4/2.0);
566 gMC->Gspos("V0D2",1,"V0R4",-h4 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
567 gMC->Gspos("V0D2",2,"V0R4",+h4 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
569 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3);
570 parbox[1] = half_thick_alu;
571 parbox[2] = half_thick_qua4;
572 gMC->Gsvolu("V0D3","BOX",idtmed[3004],parbox,3);
573 gMC->Gspos("V0D3",1,"V0R4",0.0, - (height4/2.0) + half_thick_alu ,0.0,0,"ONLY");
576 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
577 parbox[1] = half_thick_alu;
578 parbox[2] = half_thick_qua4;
579 gMC->Gsvolu("V0D4","BOX",idtmed[3004],parbox,3);
580 gMC->Gspos("V0D4",1,"V0R4",0.0, (height4/2.0) - half_thick_alu,0.0,0,"ONLY");
583 // Elementary cell ring 5 :
587 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
589 par[0] = half_thick_qua5 - thick_alu;
590 par[3] = height5 / 2.0 - thick_alu;
591 par[4] = TMath::Tan(theta) * r4 - thick_alu;
592 par[5] = TMath::Tan(theta) * r5 - thick_alu;
593 par[7] = height5 / 2.0 - thick_alu;
594 par[8] = TMath::Tan(theta) * r4 - thick_alu;
595 par[9] = TMath::Tan(theta) * r5 - thick_alu;
597 gMC->Gsvolu("V0R5","TRAP",idtmed[3002],par,11); // quartz volume
598 gMC->Gspos("V0R5",1,"V0R0", 0.0, dist5 , - half_thick_qua1 + half_thick_qua5, 0,"ONLY");
601 par[0] = half_thick_alu;
603 gMC->Gsvolu("V0E1","TRAP",idtmed[3004],par,11); // aluminum trap-shaped foil
604 gMC->Gspos("V0E1",1,"V0R5",0.0,0.0, - half_thick_qua5 + half_thick_alu,0,"ONLY");
605 gMC->Gspos("V0E1",2,"V0R5",0.0,0.0, + half_thick_qua5 - half_thick_alu,0,"ONLY");
607 parbox[0] = half_thick_alu;
608 parbox[1] = height5 / TMath::Cos(theta)/ 2.0;
609 parbox[2] = half_thick_qua5;
611 gMC->Gsvolu("V0E2","BOX",idtmed[3004],parbox,3); // aluminum rectangular foil
613 h5 = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4 + height5/2.0);
614 gMC->Gspos("V0E2",1,"V0R5",-h5 + half_thick_alu,0.0,0.0,idrotm[911],"ONLY");
615 gMC->Gspos("V0E2",2,"V0R5",+h5 - half_thick_alu,0.0,0.0,idrotm[912],"ONLY");
617 parbox[0] = TMath::Tan(theta) * (r0 + height1 + height2 + height3 + height4);
618 parbox[1] = half_thick_alu;
619 parbox[2] = half_thick_qua5;
620 gMC->Gsvolu("V0E3","BOX",idtmed[3004],parbox,3);
621 gMC->Gspos("V0E3",1,"V0R5",0.0, - (height5/2.0) + half_thick_alu ,0.0,0,"ONLY");
624 parbox[0] = TMath::Tan(theta) * r5;
625 parbox[1] = half_thick_alu;
626 parbox[2] = half_thick_qua5;
627 gMC->Gsvolu("V0E4","BOX",idtmed[3004],parbox,3);
628 gMC->Gspos("V0E4",1,"V0R5",0.0, (height5/2.0) - half_thick_alu,0.0,0,"ONLY");
632 Float_t phi_deg = 180./6.;
634 // Partie de droite :
636 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
638 phi_rad = phi*pi/180.;
639 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
640 gMC->Gspos("V0R0",n_detec_R,"V0RI",-dist0*TMath::Sin(phi_rad),
641 dist0*TMath::Cos(phi_rad),offset + half_thick_qua1,idrotm[902],"ONLY");
645 gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,zdet,0,"ONLY");
647 n_cells_R = (n_detec_R - 1) * 5;
649 printf(" Number of cells on Right side = %d\n", n_cells_R);
651 // Partie de gauche :
653 for(Float_t phi = 15.0; phi < 360.0; phi = phi + phi_deg)
655 phi_rad = phi*pi/180.;
656 AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
657 gMC->Gspos("V0L0",n_detec_L,"V0LE",-dist0_left*TMath::Sin(phi_rad),
658 dist0_left*TMath::Cos(phi_rad),offset_left + half_thick_qua1,idrotm[902],"ONLY");
663 gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,-350.0-fThickness1/2.0,0,"ONLY");
665 n_cells_L = (n_detec_L - 1) * 5;
667 printf(" Number of cells on Left side = %d\n\n", n_cells_L);
674 //_____________________________________________________________________________
675 void AliVZEROv0::BuildGeometry()
678 // Builds simple ROOT TNode geometry for event display
684 for(i=0;i<30;i++) printf("*");
685 printf(" VZERO BuildGeometry ");
686 for(i=0;i<30;i++) printf("*");
691 TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
692 TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
693 TNode *V0Lnode, *V0Lnode0;
694 TNode *V0Lnode1, *V0Lnode2, *V0Lnode3, *V0Lnode4, *V0Lnode5;
696 const int kColorVZERO = kGreen;
698 Top = gAlice->GetGeometry()->GetNode("alice");
700 Float_t height1, height2, height3, height4, height5;
703 Float_t half_thick_alu;
704 Float_t half_thick_qua1,half_thick_qua2,half_thick_qua3;
705 Float_t half_thick_qua4,half_thick_qua5;
708 Float_t pi = TMath::Pi();
717 height1 = 2.0; // height of cell 1, in cm
718 height2 = 3.2; // height of cell 2, in cm
719 height3 = 4.9; // height of cell 3, in cm
720 height4 = 7.5; // height of cell 4, in cm
721 height5 = 12.0; // height of cell 5, in cm
724 half_thick_alu = 0.0025;
725 thick_alu = 2.0 * half_thick_alu;
726 half_thick_qua1 = fThickness1/2.0;
727 half_thick_qua2 = half_thick_qua1 - 0.25;
728 half_thick_qua3 = half_thick_qua2 - 0.25;
729 half_thick_qua4 = half_thick_qua3 - 0.25;
730 half_thick_qua5 = half_thick_qua4 - 0.25;
732 zdet = 86.9 +fThickness/2.0;
734 height = height1 + height2 + height3 + height4 + height5;
739 partube[0] = r0 - 0.2;
740 partube[1] = (r5 + 1.0) / TMath::Cos(theta);
741 partube[2] = fThickness/2.0;
743 TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
747 V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
749 V0Rnode->SetLineColor(kBlue);
750 fNodes->Add(V0Rnode);
752 V0Rnode->SetVisibility(2);
755 // Rondelles de carbone (epaisseur 1 mm) de maintien des cellules ...
764 parbox[4] = -0.1/2.0;
767 parbox[7] = +0.1/2.0;
772 TPGON *V0CA = new TPGON("V0CA", "V0CA", "void",parbox[0], parbox[1],
773 static_cast<Int_t>(parbox[2]),
774 static_cast<Int_t>(parbox[3]));
776 V0CA->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
777 V0CA->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
780 V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-parbox[7],0);
781 V0Rnode6->SetLineColor(kYellow);
782 fNodes->Add(V0Rnode6);
784 V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+parbox[7],0);
785 V0Rnode7->SetLineColor(kYellow);
786 fNodes->Add(V0Rnode7);
788 parbox[4] = -fThickness/2.0;
789 parbox[5] = r0 - 0.2;
791 parbox[7] = +fThickness/2.0;
792 parbox[8] = r0 - 0.2;
795 TPGON *V0IR = new TPGON("V0IR","V0IR","void", parbox[0], parbox[1],
796 static_cast<Int_t>(parbox[2]),
797 static_cast<Int_t>(parbox[3]));
798 V0IR->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
799 V0IR->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
802 V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
803 V0Rnode8->SetLineColor(kYellow);
804 fNodes->Add(V0Rnode8);
806 parbox[4] = -fThickness/2.0;
808 parbox[6] = r5 + 1.0;
809 parbox[7] = +fThickness/2.0;
811 parbox[9] = r5 + 1.0;
813 TPGON *V0ER = new TPGON("V0ER","V0ER","void", parbox[0], parbox[1],
814 static_cast<Int_t>(parbox[2]),
815 static_cast<Int_t>(parbox[3]));
817 V0ER->DefineSection( 0, parbox[4], parbox[5], parbox[6] );
818 V0ER->DefineSection( 1, parbox[7], parbox[8], parbox[9] );
821 V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
822 V0Rnode9->SetLineColor(kYellow);
823 fNodes->Add(V0Rnode9);
828 dist0 = r0 + height / 2.0;
829 thick_alu = 2.0*half_thick_alu;
831 par[0] = half_thick_qua1;
834 par[3] = height / 2.0 ;
835 par[4] = TMath::Tan(theta) * r0;
836 par[5] = TMath::Tan(theta) * r5;
838 par[7] = height / 2.0 ;
839 par[8] = TMath::Tan(theta) * r0;
840 par[9] = TMath::Tan(theta) * r5;
843 TTRAP *V0R0 = new TTRAP("V0R0", "V0R0", "void", par[0], par[1], par[2], par[3],
844 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
850 dist1 = (- height + height1) /2.0;
852 offset = - fThickness/2.0 + 0.1;
854 par[0] = half_thick_qua1 - thick_alu;
855 par[3] = height1 / 2.0 - thick_alu;
856 par[4] = TMath::Tan(theta) * r0 - thick_alu;
857 par[5] = TMath::Tan(theta) * r1- thick_alu;
858 par[7] = height1 / 2.0 - thick_alu;
859 par[8] = TMath::Tan(theta) * r0 - thick_alu;
860 par[9] = TMath::Tan(theta) * r1 - thick_alu;
862 TTRAP *V0R1 = new TTRAP("V0R1", "V0R1", "void", par[0], par[1], par[2], par[3],
863 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
869 dist2 = (- height + height2) /2.0 + height1;
872 par[0] = half_thick_qua2 - thick_alu;
873 par[3] = height2 / 2.0 - thick_alu;
874 par[4] = TMath::Tan(theta) * r1 - thick_alu;
875 par[5] = TMath::Tan(theta) * r2 - thick_alu;
876 par[7] = height2 / 2.0 - thick_alu;
877 par[8] = TMath::Tan(theta) * r1 - thick_alu;
878 par[9] = TMath::Tan(theta) * r2 - thick_alu;
881 TTRAP *V0R2 = new TTRAP("V0R2", "V0R2", "void", par[0], par[1], par[2], par[3],
882 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
888 dist3 = (- height + height3) /2.0 + height1 + height2;
891 par[0] = half_thick_qua3 - thick_alu;
892 par[3] = height3 / 2.0 - thick_alu;
893 par[4] = TMath::Tan(theta) * r2 - thick_alu;
894 par[5] = TMath::Tan(theta) * r3 - thick_alu;
895 par[7] = height3 / 2.0 - thick_alu;
896 par[8] = TMath::Tan(theta) * r2 - thick_alu;
897 par[9] = TMath::Tan(theta) * r3 - thick_alu;
900 TTRAP *V0R3 = new TTRAP("V0R3", "V0R3", "void", par[0], par[1], par[2], par[3],
901 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
907 dist4 = (- height + height4) /2.0 + height1 + height2 + height3;
910 par[0] = half_thick_qua4 - thick_alu;
911 par[3] = height4 / 2.0 - thick_alu;
912 par[4] = TMath::Tan(theta) * r3 - thick_alu;
913 par[5] = TMath::Tan(theta) * r4 - thick_alu;
914 par[7] = height4 / 2.0 - thick_alu;
915 par[8] = TMath::Tan(theta) * r3 - thick_alu;
916 par[9] = TMath::Tan(theta) * r4 - thick_alu;
919 TTRAP *V0R4 = new TTRAP("V0R4", "V0R4", "void", par[0], par[1], par[2], par[3],
920 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
925 dist5 = (- height + height5) /2.0 + height1 + height2 + height3 + height4;
927 par[0] = half_thick_qua5 - thick_alu;
928 par[3] = height5 / 2.0 - thick_alu;
929 par[4] = TMath::Tan(theta) * r4 - thick_alu;
930 par[5] = TMath::Tan(theta) * r5 - thick_alu;
931 par[7] = height5 / 2.0 - thick_alu;
932 par[8] = TMath::Tan(theta) * r4 - thick_alu;
933 par[9] = TMath::Tan(theta) * r5 - thick_alu;
936 TTRAP *V0R5 = new TTRAP("V0R5", "V0R5", "void", par[0], par[1], par[2], par[3],
937 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
941 Float_t phi_deg= 180./6.;
949 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
952 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
954 phi_rad = phi*pi/180.;
955 xdet = dist0*TMath::Sin(phi_rad);
956 ydet = dist0*TMath::Cos(phi_rad);
959 sprintf(NameNode,"SUBDER%d",n_detec_R);
962 V0Rnode0 = new TNode(NameNode,NameNode,V0R0,-xdet,ydet, offset + half_thick_qua1,mat920);
963 V0Rnode0->SetLineColor(kColorVZERO);
964 fNodes->Add(V0Rnode0);
967 sprintf(NameNode,"SUBDER%d",n_detec_R);
969 V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,dist1, 0.0,0);
970 V0Rnode1->SetLineColor(kColorVZERO);
971 fNodes->Add(V0Rnode1);
974 sprintf(NameNode,"SUBDER%d",n_detec_R);
976 V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,dist2, - half_thick_qua1 + half_thick_qua2,0);
977 V0Rnode2->SetLineColor(kColorVZERO);
978 fNodes->Add(V0Rnode2);
982 sprintf(NameNode,"SUBDER%d",n_detec_R);
984 V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,dist3, - half_thick_qua1 + half_thick_qua3,0);
985 V0Rnode3->SetLineColor(kColorVZERO);
986 fNodes->Add(V0Rnode3);
989 sprintf(NameNode,"SUBDER%d",n_detec_R);
991 V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,dist4, - half_thick_qua1 + half_thick_qua4,0);
992 V0Rnode4->SetLineColor(kColorVZERO);
993 fNodes->Add(V0Rnode4);
996 sprintf(NameNode,"SUBDER%d",n_detec_R);
998 V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,dist5, - half_thick_qua1 + half_thick_qua5,0);
999 V0Rnode5->SetLineColor(kColorVZERO);
1000 fNodes->Add(V0Rnode5);
1003 V0Rnode0->SetVisibility(2);
1008 // Left side of VZERO :
1012 Float_t r0_left = 4.3;
1013 Float_t height1_left = 2.6;
1014 Float_t height2_left = 4.1;
1015 Float_t height3_left = 6.4;
1016 Float_t height4_left = 10.2;
1017 Float_t height5_left = 16.9;
1018 Float_t height_left = height1_left + height2_left + height3_left
1019 + height4_left + height5_left;
1020 Float_t r5_left = r0_left + height_left;
1022 partube[0] = r0_left;
1023 partube[1] = (r5_left) / TMath::Cos(theta);
1024 partube[2] = fThickness1/2.0;
1026 TTUBE *V0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
1030 V0Lnode = new TNode("V0LE","V0LE",V0LE,0.0,0.0,-350.0-fThickness1/2.0,0);
1032 V0Lnode->SetLineColor(kBlue);
1033 fNodes->Add(V0Lnode);
1035 V0Lnode->SetVisibility(2);
1037 dist0_left = r0_left + height_left / 2.0;
1038 thick_alu = 2.0*half_thick_alu;
1040 par[0] = half_thick_qua1;
1043 par[3] = height_left / 2.0 ;
1044 par[4] = TMath::Tan(theta) * r0_left;
1045 par[5] = TMath::Tan(theta) * r5_left;
1047 par[7] = height_left / 2.0 ;
1048 par[8] = TMath::Tan(theta) * r0_left;
1049 par[9] = TMath::Tan(theta) * r5_left;
1052 TTRAP *V0L0 = new TTRAP("V0L0", "V0L0", "void", par[0], par[1], par[2], par[3],
1053 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1058 Float_t offset_left;
1060 dist1_left = (- height_left + height1_left) /2.0;
1061 r1_left = r0_left + height1_left;
1062 offset_left = - fThickness1/2.0 + 0.1;
1064 par[0] = half_thick_qua1 - thick_alu;
1065 par[3] = height1_left / 2.0 - thick_alu;
1066 par[4] = TMath::Tan(theta) * r0_left - thick_alu;
1067 par[5] = TMath::Tan(theta) * r1_left- thick_alu;
1068 par[7] = height1_left / 2.0 - thick_alu;
1069 par[8] = TMath::Tan(theta) * r0_left - thick_alu;
1070 par[9] = TMath::Tan(theta) * r1_left - thick_alu;
1072 TTRAP *V0L1 = new TTRAP("V0L1", "V0L1", "void", par[0], par[1], par[2], par[3],
1073 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1078 dist2_left = (- height_left + height2_left) /2.0 + height1_left;
1079 r2_left = r1_left + height2_left;
1081 par[0] = half_thick_qua1 - thick_alu;
1082 par[3] = height2_left / 2.0 - thick_alu;
1083 par[4] = TMath::Tan(theta) * r1_left - thick_alu;
1084 par[5] = TMath::Tan(theta) * r2_left - thick_alu;
1085 par[7] = height2_left / 2.0 - thick_alu;
1086 par[8] = TMath::Tan(theta) * r1_left - thick_alu;
1087 par[9] = TMath::Tan(theta) * r2_left - thick_alu;
1089 TTRAP *V0L2 = new TTRAP("V0L2", "V0L2", "void", par[0], par[1], par[2], par[3],
1090 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1097 dist3_left = (- height_left + height3_left) /2.0 + height1_left + height2_left;
1098 r3_left = r2_left + height3_left;
1100 par[0] = half_thick_qua1 - thick_alu;
1101 par[3] = height3_left / 2.0 - thick_alu;
1102 par[4] = TMath::Tan(theta) * r2_left - thick_alu;
1103 par[5] = TMath::Tan(theta) * r3_left - thick_alu;
1104 par[7] = height3_left / 2.0 - thick_alu;
1105 par[8] = TMath::Tan(theta) * r2_left - thick_alu;
1106 par[9] = TMath::Tan(theta) * r3_left - thick_alu;
1108 TTRAP *V0L3 = new TTRAP("V0L3", "V0L3", "void", par[0], par[1], par[2], par[3],
1109 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1115 dist4_left = (- height_left + height4_left) /2.0 + height1_left
1116 + height2_left + height3_left;
1117 r4_left = r3_left + height4_left;
1119 par[0] = half_thick_qua1 - thick_alu;
1120 par[3] = height4_left / 2.0 - thick_alu;
1121 par[4] = TMath::Tan(theta) * r3_left - thick_alu;
1122 par[5] = TMath::Tan(theta) * r4_left - thick_alu;
1123 par[7] = height4_left / 2.0 - thick_alu;
1124 par[8] = TMath::Tan(theta) * r3_left - thick_alu;
1125 par[9] = TMath::Tan(theta) * r4_left - thick_alu;
1127 TTRAP *V0L4 = new TTRAP("V0L4", "V0L4", "void", par[0], par[1], par[2], par[3],
1128 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1134 dist5_left = (- height_left + height5_left) /2.0 + height1_left
1135 + height2_left + height3_left + height4_left;
1138 par[0] = half_thick_qua1 - thick_alu;
1139 par[3] = height5_left / 2.0 - thick_alu;
1140 par[4] = TMath::Tan(theta) * r4_left - thick_alu;
1141 par[5] = TMath::Tan(theta) * r5_left - thick_alu;
1142 par[7] = height5_left / 2.0 - thick_alu;
1143 par[8] = TMath::Tan(theta) * r4_left - thick_alu;
1144 par[9] = TMath::Tan(theta) * r5_left - thick_alu;
1146 TTRAP *V0L5 = new TTRAP("V0L5", "V0L5", "void", par[0], par[1], par[2], par[3],
1147 par[4], par[5], par[6], par[7], par[8], par[9], par[10]);
1150 Int_t n_detec_L = 1;
1152 for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
1155 TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );
1157 phi_rad = phi*pi/180.;
1158 xdet = dist0_left*TMath::Sin(phi_rad);
1159 ydet = dist0_left*TMath::Cos(phi_rad);
1162 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1165 V0Lnode0 = new TNode(NameNode,NameNode,V0L0,-xdet,ydet, offset_left + half_thick_qua1,mat920);
1166 V0Lnode0->SetLineColor(kColorVZERO);
1167 fNodes->Add(V0Lnode0);
1170 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1172 V0Lnode1 = new TNode(NameNode,NameNode,V0L1,0.0,dist1_left, 0.0,0);
1173 V0Lnode1->SetLineColor(kColorVZERO);
1174 fNodes->Add(V0Lnode1);
1177 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1179 V0Lnode2 = new TNode(NameNode,NameNode,V0L2,0.0,dist2_left, 0.0,0);
1180 V0Lnode2->SetLineColor(kColorVZERO);
1181 fNodes->Add(V0Lnode2);
1185 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1187 V0Lnode3 = new TNode(NameNode,NameNode,V0L3,0.0,dist3_left, 0.0,0);
1188 V0Lnode3->SetLineColor(kColorVZERO);
1189 fNodes->Add(V0Lnode3);
1192 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1194 V0Lnode4 = new TNode(NameNode,NameNode,V0L4,0.0,dist4_left, 0.0,0);
1195 V0Lnode4->SetLineColor(kColorVZERO);
1196 fNodes->Add(V0Lnode4);
1199 sprintf(NameNode,"SUBDEL%d",n_detec_L);
1201 V0Lnode5 = new TNode(NameNode,NameNode,V0L5,0.0,dist5_left, 0.0,0);
1202 V0Lnode5->SetLineColor(kColorVZERO);
1203 fNodes->Add(V0Lnode5);
1206 V0Lnode0->SetVisibility(2);
1214 //------------------------------------------------------------------------
1215 void AliVZEROv0::CreateMaterials()
1220 for(i=0;i<30;i++) printf("*");
1221 printf(" VZERO create materials ");
1222 for(i=0;i<30;i++) printf("*");
1226 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,
1227 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
1230 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,
1231 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
1233 Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458,
1234 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362,
1235 1.662295, 1.68337 };
1237 Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525,
1238 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };
1240 Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1243 Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1246 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,
1247 1e-4,1e-4,1e-4,1e-4 };
1248 Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
1251 Int_t *idtmed = fIdtmed->GetArray()-2999;
1254 // Parameters related to Quarz (SiO2) :
1256 Float_t aqua[2], zqua[2], densqua, wmatqua[2];
1268 // Parameters related to aluminum sheets :
1270 Float_t aal = 26.98;
1271 Float_t zal = 13.00;
1272 Float_t densal= 2.7;
1273 Float_t radlal= 8.9;
1275 // Parameters related to scintillator CH :
1277 Float_t ascin[2] = {1.01,12.01};
1278 Float_t zscin[2] = {1,6};
1279 Float_t wscin[2] = {1,1};
1280 Float_t denscin = 1.03;
1282 // Definition of materials :
1284 AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1285 AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
1286 AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
1287 AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
1288 AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
1289 AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
1292 AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
1295 Int_t ISXFLD = gAlice->Field()->Integ();
1296 Float_t SXMGMX = gAlice->Field()->Max();
1298 Float_t tmaxfd, stemax, deemax, epsil, stmin;
1307 printf(" StepQua, StepAlu = %f %f \n",fMaxStepQua,fMaxStepAlu);
1308 printf(" DeStepQua, DeStepAlu = %f %f \n",fMaxDestepQua,fMaxDestepAlu);
1313 AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX,
1314 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
1318 AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX,
1319 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
1321 AliMedium(2, "CARBON$ ", 2, 1, ISXFLD, SXMGMX,
1322 tmaxfd, stemax, deemax, epsil, stmin, 0, 0);
1324 AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX,
1325 tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
1327 AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX,
1328 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1331 AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX,
1332 tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
1334 AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003, 0, 0);
1336 gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF
1337 gMC->Gstpar(idtmed[3000], "HADR", 1.);
1338 gMC->Gstpar(idtmed[3000], "DCAY", 1.);
1339 gMC->Gstpar(idtmed[3000], "DRAY", 1.);
1341 gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon
1342 gMC->Gstpar(idtmed[3001], "HADR", 1.);
1343 gMC->Gstpar(idtmed[3001], "DCAY", 1.);
1344 gMC->Gstpar(idtmed[3001], "DRAY", 1.);
1346 gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz
1347 gMC->Gstpar(idtmed[3002], "HADR", 1.);
1348 gMC->Gstpar(idtmed[3002], "DCAY", 1.);
1349 gMC->Gstpar(idtmed[3002], "DRAY", 1.);
1350 gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ;
1351 gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
1353 gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum
1354 gMC->Gstpar(idtmed[3003], "HADR", 1.);
1355 gMC->Gstpar(idtmed[3003], "DCAY", 1.);
1356 gMC->Gstpar(idtmed[3003], "DRAY", 1.);
1358 gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum
1359 gMC->Gstpar(idtmed[3004], "HADR", 1.);
1360 gMC->Gstpar(idtmed[3004], "DCAY", 1.);
1361 gMC->Gstpar(idtmed[3004], "DRAY", 1.);
1362 gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ;
1363 gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
1365 gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator
1366 gMC->Gstpar(idtmed[3005], "HADR", 1.);
1367 gMC->Gstpar(idtmed[3005], "DCAY", 1.);
1368 gMC->Gstpar(idtmed[3005], "DRAY", 1.);
1370 gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
1371 gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
1375 //---------------------------------------------------------------------
1376 void AliVZEROv0::DrawModule()
1379 // Drawing is done in DrawVZERO.C
1384 for(i=0;i<30;i++) printf("*");
1385 printf(" VZERO DrawModule ");
1386 for(i=0;i<30;i++) printf("*");
1392 //-------------------------------------------------------------------
1393 void AliVZEROv0::Init()
1395 // Initialises version 0 of the VZERO Detector
1396 // Just prints an information message
1398 printf(" VZERO version %d initialized \n",IsVersion());
1400 // gMC->SetMaxStep(fMaxStepAlu);
1401 // gMC->SetMaxStep(fMaxStepQua);
1403 // AliVZERO::Init();
1407 //-------------------------------------------------------------------
1409 void AliVZEROv0::StepManager()
1412 // (Very)Minimal version of StepManager
1416 static Int_t vol[4];
1417 static Float_t hits[15];
1424 Float_t kRaddeg = 180/TMath::Pi();
1430 // TGeant3 *geant3 = (TGeant3*) gMC;
1431 // Int_t Nphot = geant3->Gckin2()->ngphot;
1434 // Only charged tracks :
1436 if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return;
1439 vol[0] = gMC->CurrentVolOffID(1, vol[1]);
1440 vol[2] = gMC->CurrentVolID(copy);
1443 if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
1444 gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
1446 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
1447 gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
1449 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
1450 gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
1452 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
1453 gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
1455 else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
1456 gMC->CurrentVolID(copy) == gMC->VolId("V0L5") )
1461 if (gMC->IsTrackEntering() && RingNumber > 0.5) {
1463 gMC->TrackPosition(pos);
1465 gMC->TrackMomentum(mom);
1466 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1467 Double_t Pt = TMath::Sqrt(tc);
1468 Double_t Pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1470 theta = Float_t(TMath::ATan2(Pt,Double_t(mom[2])))*kRaddeg;
1471 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1473 ipart = gMC->TrackPid();
1480 // Float_t ttime = gMC->TrackTime();
1481 // hits[4] = ttime*1e9;
1483 hits[4] = gMC->TrackTime();
1484 hits[5] = gMC->TrackCharge();
1487 hits[8] = RingNumber;
1496 AddHit(gAlice->CurrentTrack(), vol, hits);
1502 //_____________________________________________________________________________
1503 void AliVZEROv0::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1509 TClonesArray &lhits = *fHits;
1510 new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1513 //---------------------------------------------------------------------
1514 void AliVZEROv0::AddDigits(Int_t *tracks, Int_t* digits)
1517 TClonesArray &ldigits = *fDigits;
1518 new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1521 //---------------------------------------------------------------------
1522 void AliVZEROv0::MakeBranch(Option_t *option)
1525 // Creates new branches in the current Root Tree
1528 char branchname[10];
1529 sprintf(branchname,"%s",GetName());
1530 printf(" fBufferSize = %d \n",fBufferSize);
1532 const char *H = strstr(option,"H");
1534 if (fHits && TreeH() && H) {
1535 TreeH()->Branch(branchname,&fHits, fBufferSize);
1536 printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1539 const char *D = strstr(option,"D");
1541 if (fDigits && gAlice->TreeD() && D) {
1542 gAlice->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1543 printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);