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 purpeateose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.16 2000/11/08 13:01:40 morsch
19 Chamber half-planes of stations 3-5 at different z-positions.
21 Revision 1.15 2000/11/06 11:39:02 morsch
22 Bug in StepManager() corrected.
24 Revision 1.14 2000/11/06 09:16:50 morsch
25 Avoid overlap of slat volumes.
27 Revision 1.13 2000/10/26 07:33:44 morsch
28 Correct x-position of slats in station 5.
30 Revision 1.12 2000/10/25 19:55:35 morsch
31 Switches for each station individually for debug and lego.
33 Revision 1.11 2000/10/22 16:44:01 morsch
34 Update of slat geometry for stations 3,4,5 (A. deFalco)
36 Revision 1.10 2000/10/12 16:07:04 gosset
38 * SigGenCond only called for tracking chambers,
39 hence no more division by 0,
40 and may use last ALIROOT/dummies.C with exception handling;
41 * "10" replaced by "AliMUONConstants::NTrackingCh()".
43 Revision 1.9 2000/10/06 15:37:22 morsch
44 Problems with variable redefinition in for-loop solved.
45 Variable names starting with u-case letters changed to l-case.
47 Revision 1.8 2000/10/06 09:06:31 morsch
48 Include Slat chambers (stations 3-5) into geometry (A. de Falco)
50 Revision 1.7 2000/10/02 21:28:09 fca
51 Removal of useless dependecies via forward declarations
53 Revision 1.6 2000/10/02 17:20:45 egangler
54 Cleaning of the code (continued ) :
57 -> some useless includes removed or replaced by "class" statement
59 Revision 1.5 2000/06/28 15:16:35 morsch
60 (1) Client code adapted to new method signatures in AliMUONSegmentation (see comments there)
61 to allow development of slat-muon chamber simulation and reconstruction code in the MUON
62 framework. The changes should have no side effects (mostly dummy arguments).
63 (2) Hit disintegration uses 3-dim hit coordinates to allow simulation
64 of chambers with overlapping modules (MakePadHits, Disintegration).
66 Revision 1.4 2000/06/26 14:02:38 morsch
67 Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
69 Revision 1.3 2000/06/22 14:10:05 morsch
70 HP scope problems corrected (PH)
72 Revision 1.2 2000/06/15 07:58:49 morsch
73 Code from MUON-dev joined
75 Revision 1.1.2.14 2000/06/14 14:37:25 morsch
76 Initialization of TriggerCircuit added (PC)
78 Revision 1.1.2.13 2000/06/09 21:55:47 morsch
79 Most coding rule violations corrected.
81 Revision 1.1.2.12 2000/05/05 11:34:29 morsch
84 Revision 1.1.2.11 2000/05/05 10:06:48 morsch
85 Coding Rule violations regarding trigger section corrected (CP)
86 Log messages included.
89 /////////////////////////////////////////////////////////
90 // Manager and hits classes for set:MUON version 0 //
91 /////////////////////////////////////////////////////////
96 #include <TLorentzVector.h>
99 #include "AliMUONv1.h"
103 #include "AliCallf77.h"
104 #include "AliConst.h"
105 #include "AliMUONChamber.h"
106 #include "AliMUONHit.h"
107 #include "AliMUONPadHit.h"
108 #include "AliMUONConstants.h"
109 #include "AliMUONTriggerCircuit.h"
113 //___________________________________________
114 AliMUONv1::AliMUONv1() : AliMUON()
120 //___________________________________________
121 AliMUONv1::AliMUONv1(const char *name, const char *title)
122 : AliMUON(name,title)
127 //___________________________________________
128 void AliMUONv1::CreateGeometry()
131 // Note: all chambers have the same structure, which could be
132 // easily parameterised. This was intentionally not done in order
133 // to give a starting point for the implementation of the actual
134 // design of each station.
135 Int_t *idtmed = fIdtmed->GetArray()-1099;
137 // Distance between Stations
142 Float_t zpos1, zpos2, zfpos;
143 Float_t dframep=.001; // Value for station 3 should be 6 ...
144 Float_t dframep1=.001;
145 // Bool_t frames=kTRUE;
146 Bool_t frames=kFALSE;
153 // Rotation matrices in the x-y plane
156 AliMatrix(idrotm[1100], 90., 0., 90., 90., 0., 0.);
158 AliMatrix(idrotm[1101], 90., 90., 90., 180., 0., 0.);
160 AliMatrix(idrotm[1102], 90., 180., 90., 270., 0., 0.);
162 AliMatrix(idrotm[1103], 90., 270., 90., 0., 0., 0.);
164 Float_t phi=2*TMath::Pi()/12/2;
167 // pointer to the current chamber
168 // pointer to the current chamber
169 Int_t idAlu1=idtmed[1103];
170 Int_t idAlu2=idtmed[1104];
171 // Int_t idAlu1=idtmed[1100];
172 // Int_t idAlu2=idtmed[1100];
173 Int_t idAir=idtmed[1100];
174 Int_t idGas=idtmed[1105];
177 AliMUONChamber *iChamber, *iChamber1, *iChamber2;
178 Int_t stations[5] = {1, 1, 1, 1, 1};
182 //********************************************************************
184 //********************************************************************
186 // indices 1 and 2 for first and second chambers in the station
187 // iChamber (first chamber) kept for other quanties than Z,
188 // assumed to be the same in both chambers
189 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[0];
190 iChamber2 =(AliMUONChamber*) (*fChambers)[1];
191 zpos1=iChamber1->Z();
192 zpos2=iChamber2->Z();
193 dstation = zpos2 - zpos1;
194 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
198 tpar[0] = iChamber->RInner()-dframep1;
199 tpar[1] = (iChamber->ROuter()+dframep1)/TMath::Cos(phi);
200 tpar[2] = dstation/5;
202 gMC->Gsvolu("C01M", "TUBE", idAir, tpar, 3);
203 gMC->Gsvolu("C02M", "TUBE", idAir, tpar, 3);
204 gMC->Gspos("C01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
205 gMC->Gspos("C02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
212 pgpar[4] = -dframez/2;
213 pgpar[5] = iChamber->ROuter();
214 pgpar[6] = pgpar[5]+dframep1;
215 pgpar[7] = +dframez/2;
218 gMC->Gsvolu("C01O", "PGON", idAlu1, pgpar, 10);
219 gMC->Gsvolu("C02O", "PGON", idAlu1, pgpar, 10);
220 gMC->Gspos("C01O",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
221 gMC->Gspos("C01O",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
222 gMC->Gspos("C02O",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
223 gMC->Gspos("C02O",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
226 tpar[0]= iChamber->RInner()-dframep1;
227 tpar[1]= iChamber->RInner();
229 gMC->Gsvolu("C01I", "TUBE", idAlu1, tpar, 3);
230 gMC->Gsvolu("C02I", "TUBE", idAlu1, tpar, 3);
232 gMC->Gspos("C01I",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
233 gMC->Gspos("C01I",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
234 gMC->Gspos("C02I",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
235 gMC->Gspos("C02I",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
240 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
241 bpar[1] = dframep1/2;
243 gMC->Gsvolu("C01B", "BOX", idAlu1, bpar, 3);
244 gMC->Gsvolu("C02B", "BOX", idAlu1, bpar, 3);
246 gMC->Gspos("C01B",1,"C01M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
247 idrotm[1100],"ONLY");
248 gMC->Gspos("C01B",2,"C01M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
249 idrotm[1100],"ONLY");
250 gMC->Gspos("C01B",3,"C01M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
251 idrotm[1101],"ONLY");
252 gMC->Gspos("C01B",4,"C01M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
253 idrotm[1101],"ONLY");
254 gMC->Gspos("C01B",5,"C01M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
255 idrotm[1100],"ONLY");
256 gMC->Gspos("C01B",6,"C01M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
257 idrotm[1100],"ONLY");
258 gMC->Gspos("C01B",7,"C01M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
259 idrotm[1101],"ONLY");
260 gMC->Gspos("C01B",8,"C01M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
261 idrotm[1101],"ONLY");
263 gMC->Gspos("C02B",1,"C02M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
264 idrotm[1100],"ONLY");
265 gMC->Gspos("C02B",2,"C02M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
266 idrotm[1100],"ONLY");
267 gMC->Gspos("C02B",3,"C02M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
268 idrotm[1101],"ONLY");
269 gMC->Gspos("C02B",4,"C02M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
270 idrotm[1101],"ONLY");
271 gMC->Gspos("C02B",5,"C02M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
272 idrotm[1100],"ONLY");
273 gMC->Gspos("C02B",6,"C02M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
274 idrotm[1100],"ONLY");
275 gMC->Gspos("C02B",7,"C02M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
276 idrotm[1101],"ONLY");
277 gMC->Gspos("C02B",8,"C02M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
278 idrotm[1101],"ONLY");
281 // Chamber Material represented by Alu sheet
282 tpar[0]= iChamber->RInner();
283 tpar[1]= iChamber->ROuter();
284 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
285 gMC->Gsvolu("C01A", "TUBE", idAlu2, tpar, 3);
286 gMC->Gsvolu("C02A", "TUBE",idAlu2, tpar, 3);
287 gMC->Gspos("C01A", 1, "C01M", 0., 0., 0., 0, "ONLY");
288 gMC->Gspos("C02A", 1, "C02M", 0., 0., 0., 0, "ONLY");
291 // tpar[2] = iChamber->DGas();
292 tpar[2] = iChamber->DGas()/2;
293 gMC->Gsvolu("C01G", "TUBE", idtmed[1108], tpar, 3);
294 gMC->Gsvolu("C02G", "TUBE", idtmed[1108], tpar, 3);
295 gMC->Gspos("C01G", 1, "C01A", 0., 0., 0., 0, "ONLY");
296 gMC->Gspos("C02G", 1, "C02A", 0., 0., 0., 0, "ONLY");
298 // Frame Crosses to be placed inside gas
301 dr = (iChamber->ROuter() - iChamber->RInner());
302 bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
303 bpar[1] = dframep1/2;
304 bpar[2] = iChamber->DGas()/2;
305 gMC->Gsvolu("C01F", "BOX", idAlu1, bpar, 3);
306 gMC->Gsvolu("C02F", "BOX", idAlu1, bpar, 3);
308 gMC->Gspos("C01F",1,"C01G", +iChamber->RInner()+bpar[0] , 0, 0,
309 idrotm[1100],"ONLY");
310 gMC->Gspos("C01F",2,"C01G", -iChamber->RInner()-bpar[0] , 0, 0,
311 idrotm[1100],"ONLY");
312 gMC->Gspos("C01F",3,"C01G", 0, +iChamber->RInner()+bpar[0] , 0,
313 idrotm[1101],"ONLY");
314 gMC->Gspos("C01F",4,"C01G", 0, -iChamber->RInner()-bpar[0] , 0,
315 idrotm[1101],"ONLY");
317 gMC->Gspos("C02F",1,"C02G", +iChamber->RInner()+bpar[0] , 0, 0,
318 idrotm[1100],"ONLY");
319 gMC->Gspos("C02F",2,"C02G", -iChamber->RInner()-bpar[0] , 0, 0,
320 idrotm[1100],"ONLY");
321 gMC->Gspos("C02F",3,"C02G", 0, +iChamber->RInner()+bpar[0] , 0,
322 idrotm[1101],"ONLY");
323 gMC->Gspos("C02F",4,"C02G", 0, -iChamber->RInner()-bpar[0] , 0,
324 idrotm[1101],"ONLY");
329 //********************************************************************
331 //********************************************************************
332 // indices 1 and 2 for first and second chambers in the station
333 // iChamber (first chamber) kept for other quanties than Z,
334 // assumed to be the same in both chambers
335 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[2];
336 iChamber2 =(AliMUONChamber*) (*fChambers)[3];
337 zpos1=iChamber1->Z();
338 zpos2=iChamber2->Z();
339 dstation = zpos2 - zpos1;
340 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
344 tpar[0] = iChamber->RInner()-dframep;
345 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
346 tpar[2] = dstation/5;
348 gMC->Gsvolu("C03M", "TUBE", idAir, tpar, 3);
349 gMC->Gsvolu("C04M", "TUBE", idAir, tpar, 3);
350 gMC->Gspos("C03M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
351 gMC->Gspos("C04M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
359 pgpar[4] = -dframez/2;
360 pgpar[5] = iChamber->ROuter();
361 pgpar[6] = pgpar[5]+dframep;
362 pgpar[7] = +dframez/2;
365 gMC->Gsvolu("C03O", "PGON", idAlu1, pgpar, 10);
366 gMC->Gsvolu("C04O", "PGON", idAlu1, pgpar, 10);
367 gMC->Gspos("C03O",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
368 gMC->Gspos("C03O",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
369 gMC->Gspos("C04O",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
370 gMC->Gspos("C04O",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
373 tpar[0]= iChamber->RInner()-dframep;
374 tpar[1]= iChamber->RInner();
376 gMC->Gsvolu("C03I", "TUBE", idAlu1, tpar, 3);
377 gMC->Gsvolu("C04I", "TUBE", idAlu1, tpar, 3);
379 gMC->Gspos("C03I",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
380 gMC->Gspos("C03I",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
381 gMC->Gspos("C04I",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
382 gMC->Gspos("C04I",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
387 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
390 gMC->Gsvolu("C03B", "BOX", idAlu1, bpar, 3);
391 gMC->Gsvolu("C04B", "BOX", idAlu1, bpar, 3);
393 gMC->Gspos("C03B",1,"C03M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
394 idrotm[1100],"ONLY");
395 gMC->Gspos("C03B",2,"C03M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
396 idrotm[1100],"ONLY");
397 gMC->Gspos("C03B",3,"C03M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
398 idrotm[1101],"ONLY");
399 gMC->Gspos("C03B",4,"C03M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
400 idrotm[1101],"ONLY");
401 gMC->Gspos("C03B",5,"C03M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
402 idrotm[1100],"ONLY");
403 gMC->Gspos("C03B",6,"C03M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
404 idrotm[1100],"ONLY");
405 gMC->Gspos("C03B",7,"C03M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
406 idrotm[1101],"ONLY");
407 gMC->Gspos("C03B",8,"C03M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
408 idrotm[1101],"ONLY");
410 gMC->Gspos("C04B",1,"C04M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
411 idrotm[1100],"ONLY");
412 gMC->Gspos("C04B",2,"C04M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
413 idrotm[1100],"ONLY");
414 gMC->Gspos("C04B",3,"C04M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
415 idrotm[1101],"ONLY");
416 gMC->Gspos("C04B",4,"C04M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
417 idrotm[1101],"ONLY");
418 gMC->Gspos("C04B",5,"C04M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
419 idrotm[1100],"ONLY");
420 gMC->Gspos("C04B",6,"C04M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
421 idrotm[1100],"ONLY");
422 gMC->Gspos("C04B",7,"C04M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
423 idrotm[1101],"ONLY");
424 gMC->Gspos("C04B",8,"C04M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
425 idrotm[1101],"ONLY");
428 // Chamber Material represented by Alu sheet
429 tpar[0]= iChamber->RInner();
430 tpar[1]= iChamber->ROuter();
431 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
432 gMC->Gsvolu("C03A", "TUBE", idAlu2, tpar, 3);
433 gMC->Gsvolu("C04A", "TUBE", idAlu2, tpar, 3);
434 gMC->Gspos("C03A", 1, "C03M", 0., 0., 0., 0, "ONLY");
435 gMC->Gspos("C04A", 1, "C04M", 0., 0., 0., 0, "ONLY");
438 // tpar[2] = iChamber->DGas();
439 tpar[2] = iChamber->DGas()/2;
440 gMC->Gsvolu("C03G", "TUBE", idGas, tpar, 3);
441 gMC->Gsvolu("C04G", "TUBE", idGas, tpar, 3);
442 gMC->Gspos("C03G", 1, "C03A", 0., 0., 0., 0, "ONLY");
443 gMC->Gspos("C04G", 1, "C04A", 0., 0., 0., 0, "ONLY");
447 // Frame Crosses to be placed inside gas
448 dr = (iChamber->ROuter() - iChamber->RInner());
449 bpar[0] = TMath::Sqrt(dr*dr-dframep*dframep/4)/2;
451 bpar[2] = iChamber->DGas()/2;
452 gMC->Gsvolu("C03F", "BOX", idAlu1, bpar, 3);
453 gMC->Gsvolu("C04F", "BOX", idAlu1, bpar, 3);
455 gMC->Gspos("C03F",1,"C03G", +iChamber->RInner()+bpar[0] , 0, 0,
456 idrotm[1100],"ONLY");
457 gMC->Gspos("C03F",2,"C03G", -iChamber->RInner()-bpar[0] , 0, 0,
458 idrotm[1100],"ONLY");
459 gMC->Gspos("C03F",3,"C03G", 0, +iChamber->RInner()+bpar[0] , 0,
460 idrotm[1101],"ONLY");
461 gMC->Gspos("C03F",4,"C03G", 0, -iChamber->RInner()-bpar[0] , 0,
462 idrotm[1101],"ONLY");
464 gMC->Gspos("C04F",1,"C04G", +iChamber->RInner()+bpar[0] , 0, 0,
465 idrotm[1100],"ONLY");
466 gMC->Gspos("C04F",2,"C04G", -iChamber->RInner()-bpar[0] , 0, 0,
467 idrotm[1100],"ONLY");
468 gMC->Gspos("C04F",3,"C04G", 0, +iChamber->RInner()+bpar[0] , 0,
469 idrotm[1101],"ONLY");
470 gMC->Gspos("C04F",4,"C04G", 0, -iChamber->RInner()-bpar[0] , 0,
471 idrotm[1101],"ONLY");
474 // define the id of tracking media:
475 Int_t idCopper = idtmed[1110];
476 Int_t idGlass = idtmed[1111];
477 Int_t idCarbon = idtmed[1112];
478 Int_t idRoha = idtmed[1113];
480 // sensitive area: 40*40 cm**2
481 const Float_t sensLength = 40.;
482 const Float_t sensHeight = 40.;
483 const Float_t sensWidth = 0.5; // according to TDR fig 2.120
484 const Int_t sensMaterial = idGas;
485 const Float_t yOverlap = 1.5;
487 // PCB dimensions in cm; width: 30 mum copper
488 const Float_t pcbLength = sensLength;
489 const Float_t pcbHeight = 60.;
490 const Float_t pcbWidth = 0.003;
491 const Int_t pcbMaterial = idCopper;
493 // Insulating material: 200 mum glass fiber glued to pcb
494 const Float_t insuLength = pcbLength;
495 const Float_t insuHeight = pcbHeight;
496 const Float_t insuWidth = 0.020;
497 const Int_t insuMaterial = idGlass;
499 // Carbon fiber panels: 200mum carbon/epoxy skin
500 const Float_t panelLength = sensLength;
501 const Float_t panelHeight = sensHeight;
502 const Float_t panelWidth = 0.020;
503 const Int_t panelMaterial = idCarbon;
505 // rohacell between the two carbon panels
506 const Float_t rohaLength = sensLength;
507 const Float_t rohaHeight = sensHeight;
508 const Float_t rohaWidth = 0.5;
509 const Int_t rohaMaterial = idRoha;
511 // Frame around the slat: 2 sticks along length,2 along height
512 // H: the horizontal ones
513 const Float_t hFrameLength = pcbLength;
514 const Float_t hFrameHeight = 1.5;
515 const Float_t hFrameWidth = sensWidth;
516 const Int_t hFrameMaterial = idGlass;
518 // V: the vertical ones
519 const Float_t vFrameLength = 4.0;
520 const Float_t vFrameHeight = sensHeight + hFrameHeight;
521 const Float_t vFrameWidth = sensWidth;
522 const Int_t vFrameMaterial = idGlass;
524 // B: the horizontal border filled with rohacell
525 const Float_t bFrameLength = hFrameLength;
526 const Float_t bFrameHeight = (pcbHeight - sensHeight)/2. - hFrameHeight;
527 const Float_t bFrameWidth = hFrameWidth;
528 const Int_t bFrameMaterial = idRoha;
530 // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper)
531 const Float_t nulocLength = 2.5;
532 const Float_t nulocHeight = 7.5;
533 const Float_t nulocWidth = 0.0030 + 0.0014; // equivalent copper width of vetronite;
534 const Int_t nulocMaterial = idCopper;
536 const Float_t slatHeight = pcbHeight;
537 const Float_t slatWidth = sensWidth + 2.*(pcbWidth + insuWidth +
538 2.* panelWidth + rohaWidth);
539 const Int_t slatMaterial = idAir;
540 const Float_t dSlatLength = vFrameLength; // border on left and right
545 // the panel volume contains the rohacell
547 Float_t twidth = 2 * panelWidth + rohaWidth;
548 Float_t panelpar[3] = { panelLength/2., panelHeight/2., twidth/2. };
549 Float_t rohapar[3] = { rohaLength/2., rohaHeight/2., rohaWidth/2. };
551 // insulating material contains PCB-> gas-> 2 borders filled with rohacell
553 twidth = 2*(insuWidth + pcbWidth) + sensWidth;
554 Float_t insupar[3] = { insuLength/2., insuHeight/2., twidth/2. };
555 twidth -= 2 * insuWidth;
556 Float_t pcbpar[3] = { pcbLength/2., pcbHeight/2., twidth/2. };
557 Float_t senspar[3] = { sensLength/2., sensHeight/2., sensWidth/2. };
558 Float_t theight = 2*hFrameHeight + sensHeight;
559 Float_t hFramepar[3]={hFrameLength/2., theight/2., hFrameWidth/2.};
560 Float_t bFramepar[3]={bFrameLength/2., bFrameHeight/2., bFrameWidth/2.};
561 Float_t vFramepar[3]={vFrameLength/2., vFrameHeight/2., vFrameWidth/2.};
562 Float_t nulocpar[3]={nulocLength/2., nulocHeight/2., nulocWidth/2.};
564 Float_t xxmax = (bFrameLength - nulocLength)/2.;
569 //********************************************************************
571 //********************************************************************
572 // indices 1 and 2 for first and second chambers in the station
573 // iChamber (first chamber) kept for other quanties than Z,
574 // assumed to be the same in both chambers
575 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[4];
576 iChamber2 =(AliMUONChamber*) (*fChambers)[5];
577 zpos1=iChamber1->Z();
578 zpos2=iChamber2->Z();
579 dstation = zpos2 - zpos1;
581 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
584 tpar[0] = iChamber->RInner()-dframep;
585 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
586 tpar[2] = dstation/4;
587 gMC->Gsvolu("C05M", "TUBE", idAir, tpar, 3);
588 gMC->Gsvolu("C06M", "TUBE", idAir, tpar, 3);
589 gMC->Gspos("C05M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
590 gMC->Gspos("C06M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
592 // volumes for slat geometry (xx=5,..,10 chamber id):
593 // Sxx0 Sxx1 Sxx2 Sxx3 --> Slat Mother volumes
594 // SxxG --> Sensitive volume (gas)
595 // SxxP --> PCB (copper)
596 // SxxI --> Insulator (vetronite)
597 // SxxC --> Carbon panel
599 // SxxH, SxxV --> Horizontal and Vertical frames (vetronite)
601 // slat dimensions: slat is a MOTHER volume!!! made of air
604 const Int_t nSlats3 = 4; // number of slats per quadrant
605 const Int_t nPCB3[nSlats3] = {3,4,3,2}; // n PCB per slat
606 Float_t slatLength3[nSlats3];
608 // create and position the slat (mother) volumes
614 for (i = 0; i<nSlats3; i++){
615 slatLength3[i] = pcbLength * nPCB3[i] + 2. * dSlatLength;
616 xSlat3 = slatLength3[i]/2. - vFrameLength/2.;
620 slatLength3[i] -= 2. *dSlatLength;
622 Float_t ySlat31 = sensHeight * (i+0.5) - yOverlap * i - yOverlap/2.;
623 Float_t ySlat32 = -sensHeight * (i+0.5) + yOverlap * i + yOverlap/2.;
624 spar[0] = slatLength3[i]/2.;
625 spar[1] = slatHeight/2.;
626 spar[2] = slatWidth/2. * 1.01;
627 Float_t dzCh3=spar[2] * 1.01;
628 // zSlat to be checked (odd downstream or upstream?)
629 Float_t zSlat = (i%2 ==0)? -spar[2] : spar[2];
630 sprintf(volNam5,"S05%d",i);
631 gMC->Gsvolu(volNam5,"BOX",slatMaterial,spar,3);
632 gMC->Gspos(volNam5, i*4+1,"C05M", xSlat3, ySlat31, zSlat+2.*dzCh3, 0, "ONLY");
633 gMC->Gspos(volNam5, i*4+2,"C05M",-xSlat3, ySlat31, zSlat-2.*dzCh3, 0, "ONLY");
634 gMC->Gspos(volNam5, i*4+3,"C05M", xSlat3, ySlat32,-zSlat+2.*dzCh3, 0, "ONLY");
635 gMC->Gspos(volNam5, i*4+4,"C05M",-xSlat3, ySlat32,-zSlat-2.*dzCh3, 0, "ONLY");
636 sprintf(volNam6,"S06%d",i);
637 gMC->Gsvolu(volNam6,"BOX",slatMaterial,spar,3);
638 gMC->Gspos(volNam6, i*4+1,"C06M", xSlat3, ySlat31, zSlat+2.*dzCh3, 0, "ONLY");
639 gMC->Gspos(volNam6, i*4+2,"C06M",-xSlat3, ySlat31, zSlat-2.*dzCh3, 0, "ONLY");
640 gMC->Gspos(volNam6, i*4+3,"C06M", xSlat3, ySlat32,-zSlat+2.*dzCh3, 0, "ONLY");
641 gMC->Gspos(volNam6, i*4+4,"C06M",-xSlat3, ySlat32,-zSlat-2.*dzCh3, 0, "ONLY");
642 // 1st pcb in 1st slat made by some rectangular divisions
646 // create the panel volume
648 gMC->Gsvolu("S05C","BOX",panelMaterial,panelpar,3);
649 gMC->Gsvolu("S06C","BOX",panelMaterial,panelpar,3);
651 // create the rohacell volume
653 gMC->Gsvolu("S05R","BOX",rohaMaterial,rohapar,3);
654 gMC->Gsvolu("S06R","BOX",rohaMaterial,rohapar,3);
656 // create the insulating material volume
658 gMC->Gsvolu("S05I","BOX",insuMaterial,insupar,3);
659 gMC->Gsvolu("S06I","BOX",insuMaterial,insupar,3);
661 // create the PCB volume
663 gMC->Gsvolu("S05P","BOX",pcbMaterial,pcbpar,3);
664 gMC->Gsvolu("S06P","BOX",pcbMaterial,pcbpar,3);
666 // create the sensitive volumes,
667 gMC->Gsvolu("S05G","BOX",sensMaterial,0,0);
668 gMC->Gsvolu("S06G","BOX",sensMaterial,0,0);
671 // create the vertical frame volume
673 gMC->Gsvolu("S05V","BOX",vFrameMaterial,vFramepar,3);
674 gMC->Gsvolu("S06V","BOX",vFrameMaterial,vFramepar,3);
676 // create the horizontal frame volume
678 gMC->Gsvolu("S05H","BOX",hFrameMaterial,hFramepar,3);
679 gMC->Gsvolu("S06H","BOX",hFrameMaterial,hFramepar,3);
681 // create the horizontal border volume
683 gMC->Gsvolu("S05B","BOX",bFrameMaterial,bFramepar,3);
684 gMC->Gsvolu("S06B","BOX",bFrameMaterial,bFramepar,3);
687 for (i = 0; i<nSlats3; i++){
688 sprintf(volNam5,"S05%d",i);
689 sprintf(volNam6,"S06%d",i);
690 Float_t xvFrame = (slatLength3[i] - vFrameLength)/2.;
691 // position the vertical frames
693 gMC->Gspos("S05V",2*i-1,volNam5, xvFrame, 0., 0. , 0, "ONLY");
694 gMC->Gspos("S05V",2*i ,volNam5,-xvFrame, 0., 0. , 0, "ONLY");
695 gMC->Gspos("S06V",2*i-1,volNam6, xvFrame, 0., 0. , 0, "ONLY");
696 gMC->Gspos("S06V",2*i ,volNam6,-xvFrame, 0., 0. , 0, "ONLY");
698 // position the panels and the insulating material
699 for (j=0; j<nPCB3[i]; j++){
701 Float_t xx = sensLength * (-nPCB3[i]/2.+j+.5);
703 Float_t zPanel = spar[2] - panelpar[2];
704 gMC->Gspos("S05C",2*index-1,volNam5, xx, 0., zPanel , 0, "ONLY");
705 gMC->Gspos("S05C",2*index ,volNam5, xx, 0.,-zPanel , 0, "ONLY");
706 gMC->Gspos("S06C",2*index-1,volNam6, xx, 0., zPanel , 0, "ONLY");
707 gMC->Gspos("S06C",2*index ,volNam6, xx, 0.,-zPanel , 0, "ONLY");
709 gMC->Gspos("S05I",index,volNam5, xx, 0., 0 , 0, "ONLY");
710 gMC->Gspos("S06I",index,volNam6, xx, 0., 0 , 0, "ONLY");
714 // position the rohacell volume inside the panel volume
715 gMC->Gspos("S05R",1,"S05C",0.,0.,0.,0,"ONLY");
716 gMC->Gspos("S06R",1,"S06C",0.,0.,0.,0,"ONLY");
718 // position the PCB volume inside the insulating material volume
719 gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
720 gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
721 // position the horizontal frame volume inside the PCB volume
722 gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
723 gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
724 // position the sensitive volume inside the horizontal frame volume
725 gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
726 gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
727 // position the border volumes inside the PCB volume
728 Float_t yborder = ( pcbHeight - bFrameHeight ) / 2.;
729 gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
730 gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
731 gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
732 gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
734 // create the NULOC volume and position it in the horizontal frame
736 gMC->Gsvolu("S05N","BOX",nulocMaterial,nulocpar,3);
737 gMC->Gsvolu("S06N","BOX",nulocMaterial,nulocpar,3);
739 for (xx = -xxmax; xx<=xxmax; xx+=3*nulocLength) {
741 gMC->Gspos("S05N",2*index-1,"S05B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
742 gMC->Gspos("S05N",2*index ,"S05B", xx, 0., bFrameWidth/4., 0, "ONLY");
743 gMC->Gspos("S06N",2*index-1,"S06B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
744 gMC->Gspos("S06N",2*index ,"S06B", xx, 0., bFrameWidth/4., 0, "ONLY");
748 // position the volumes approximating the circular section of the pipe
749 Float_t epsilon = 0.001;
752 Double_t dydiv= sensHeight/ndiv;
753 Double_t ydiv = -dydiv - yOverlap/2.;
755 // for (Int_t islat=0; islat<nSlats3; islat++) imax += nPCB3[islat];
758 Float_t z1 = -spar[2], z2=slatWidth;
759 for (Int_t idiv=0;idiv<ndiv; idiv++){
762 if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
763 divpar[0] = (pcbLength-xdiv)/2.;
764 divpar[1] = dydiv/2. - epsilon;
765 divpar[2] = sensWidth/2.;
766 Float_t xvol=(pcbLength+xdiv)/2.;
767 Float_t yvol=ydiv + dydiv/2.;
768 gMC->Gsposp("S05G",imax+4*idiv+1,"C05M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
769 gMC->Gsposp("S06G",imax+4*idiv+1,"C06M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
770 gMC->Gsposp("S05G",imax+4*idiv+2,"C05M", xvol,-yvol, z2-z1, 0, "ONLY",divpar,3);
771 gMC->Gsposp("S06G",imax+4*idiv+2,"C06M", xvol,-yvol, z2-z1, 0, "ONLY",divpar,3);
772 gMC->Gsposp("S05G",imax+4*idiv+3,"C05M",-xvol, yvol,-z2+z1, 0, "ONLY",divpar,3);
773 gMC->Gsposp("S06G",imax+4*idiv+3,"C06M",-xvol, yvol,-z2+z1, 0, "ONLY",divpar,3);
774 gMC->Gsposp("S05G",imax+4*idiv+4,"C05M",-xvol,-yvol,-z1-z2, 0, "ONLY",divpar,3);
775 gMC->Gsposp("S06G",imax+4*idiv+4,"C06M",-xvol,-yvol,-z1-z2, 0, "ONLY",divpar,3);
782 //********************************************************************
784 //********************************************************************
785 // indices 1 and 2 for first and second chambers in the station
786 // iChamber (first chamber) kept for other quanties than Z,
787 // assumed to be the same in both chambers
788 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[6];
789 iChamber2 =(AliMUONChamber*) (*fChambers)[7];
790 zpos1=iChamber1->Z();
791 zpos2=iChamber2->Z();
792 dstation = zpos2 - zpos1;
793 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
797 tpar[0] = iChamber->RInner()-dframep;
798 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
801 gMC->Gsvolu("C07M", "TUBE", idAir, tpar, 3);
802 gMC->Gsvolu("C08M", "TUBE", idAir, tpar, 3);
803 gMC->Gspos("C07M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
804 gMC->Gspos("C08M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
807 const Int_t nSlats4 = 6; // number of slats per quadrant
808 const Int_t nPCB4[nSlats4] = {4,5,5,4,3,2}; // n PCB per slat
810 // slat dimensions: slat is a MOTHER volume!!! made of air
811 Float_t slatLength4[nSlats4];
813 // create and position the slat (mother) volumes
820 for (i = 0; i<nSlats4; i++){
821 slatLength4[i] = pcbLength * nPCB4[i] + 2. * dSlatLength;
822 xSlat4 = slatLength4[i]/2. - vFrameLength/2.;
823 if (i==0) xSlat4 += 37.5;
824 if (i==1) xSlat4 += 32; // to be checked
825 ySlat4 = sensHeight * i - yOverlap *i;
827 spar[0] = slatLength4[i]/2.;
828 spar[1] = slatHeight/2.;
829 spar[2] = slatWidth/2.*1.01;
830 Float_t dzCh4=spar[2]*1.01;
831 // zSlat to be checked (odd downstream or upstream?)
832 Float_t zSlat = (i%2 ==0)? spar[2] : -spar[2];
833 sprintf(volNam7,"S07%d",i);
834 gMC->Gsvolu(volNam7,"BOX",slatMaterial,spar,3);
835 gMC->Gspos(volNam7, i*4+1,"C07M", xSlat4, ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
836 gMC->Gspos(volNam7, i*4+2,"C07M",-xSlat4, ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
838 gMC->Gspos(volNam7, i*4+3,"C07M", xSlat4,-ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
839 gMC->Gspos(volNam7, i*4+4,"C07M",-xSlat4,-ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
841 sprintf(volNam8,"S08%d",i);
842 gMC->Gsvolu(volNam8,"BOX",slatMaterial,spar,3);
843 gMC->Gspos(volNam8, i*4+1,"C08M", xSlat4, ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
844 gMC->Gspos(volNam8, i*4+2,"C08M",-xSlat4, ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
846 gMC->Gspos(volNam8, i*4+3,"C08M", xSlat4,-ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
847 gMC->Gspos(volNam8, i*4+4,"C08M",-xSlat4,-ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
852 // create the panel volume
854 gMC->Gsvolu("S07C","BOX",panelMaterial,panelpar,3);
855 gMC->Gsvolu("S08C","BOX",panelMaterial,panelpar,3);
857 // create the rohacell volume
859 gMC->Gsvolu("S07R","BOX",rohaMaterial,rohapar,3);
860 gMC->Gsvolu("S08R","BOX",rohaMaterial,rohapar,3);
862 // create the insulating material volume
864 gMC->Gsvolu("S07I","BOX",insuMaterial,insupar,3);
865 gMC->Gsvolu("S08I","BOX",insuMaterial,insupar,3);
867 // create the PCB volume
869 gMC->Gsvolu("S07P","BOX",pcbMaterial,pcbpar,3);
870 gMC->Gsvolu("S08P","BOX",pcbMaterial,pcbpar,3);
872 // create the sensitive volumes,
874 gMC->Gsvolu("S07G","BOX",sensMaterial,0,0);
875 gMC->Gsvolu("S08G","BOX",sensMaterial,0,0);
876 // gMC->Gsvolu("S07G","BOX",sensMaterial,senspar,3);
877 // gMC->Gsvolu("S08G","BOX",sensMaterial,senspar,3);
881 // create the vertical frame volume
883 gMC->Gsvolu("S07V","BOX",vFrameMaterial,vFramepar,3);
884 gMC->Gsvolu("S08V","BOX",vFrameMaterial,vFramepar,3);
886 // create the horizontal frame volume
888 gMC->Gsvolu("S07H","BOX",hFrameMaterial,hFramepar,3);
889 gMC->Gsvolu("S08H","BOX",hFrameMaterial,hFramepar,3);
891 // create the horizontal border volume
893 gMC->Gsvolu("S07B","BOX",bFrameMaterial,bFramepar,3);
894 gMC->Gsvolu("S08B","BOX",bFrameMaterial,bFramepar,3);
897 for (i = 0; i<nSlats4; i++){
898 sprintf(volNam7,"S07%d",i);
899 sprintf(volNam8,"S08%d",i);
900 Float_t xvFrame = (slatLength4[i] - vFrameLength)/2.;
901 // position the vertical frames
902 gMC->Gspos("S07V",2*i-1,volNam7, xvFrame, 0., 0. , 0, "ONLY");
903 gMC->Gspos("S07V",2*i ,volNam7,-xvFrame, 0., 0. , 0, "ONLY");
904 gMC->Gspos("S08V",2*i-1,volNam8, xvFrame, 0., 0. , 0, "ONLY");
905 gMC->Gspos("S08V",2*i ,volNam8,-xvFrame, 0., 0. , 0, "ONLY");
907 // position the panels and the insulating material
908 for (j=0; j<nPCB4[i]; j++){
910 Float_t xx = sensLength * (-nPCB4[i]/2.+j+.5);
912 Float_t zPanel = spar[2] - panelpar[2];
913 gMC->Gspos("S07C",2*index-1,volNam7, xx, 0., zPanel , 0, "ONLY");
914 gMC->Gspos("S07C",2*index ,volNam7, xx, 0.,-zPanel , 0, "ONLY");
915 gMC->Gspos("S08C",2*index-1,volNam8, xx, 0., zPanel , 0, "ONLY");
916 gMC->Gspos("S08C",2*index ,volNam8, xx, 0.,-zPanel , 0, "ONLY");
918 gMC->Gspos("S07I",index,volNam7, xx, 0., 0 , 0, "ONLY");
919 gMC->Gspos("S08I",index,volNam8, xx, 0., 0 , 0, "ONLY");
923 // position the rohacell volume inside the panel volume
924 gMC->Gspos("S07R",1,"S07C",0.,0.,0.,0,"ONLY");
925 gMC->Gspos("S08R",1,"S08C",0.,0.,0.,0,"ONLY");
927 // position the PCB volume inside the insulating material volume
928 gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
929 gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
930 // position the horizontal frame volume inside the PCB volume
931 gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
932 gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
933 // position the sensitive volume inside the horizontal frame volume
934 gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
935 gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
936 // gMC->Gspos("S07G",1,"S07H",0.,0.,0.,0,"ONLY");
937 // gMC->Gspos("S08G",1,"S08H",0.,0.,0.,0,"ONLY");
938 // position the border volumes inside the PCB volume
939 Float_t yborder = ( pcbHeight - bFrameHeight ) / 2.;
940 gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
941 gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
942 gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
943 gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
945 // create the NULOC volume and position it in the horizontal frame
947 gMC->Gsvolu("S07N","BOX",nulocMaterial,nulocpar,3);
948 gMC->Gsvolu("S08N","BOX",nulocMaterial,nulocpar,3);
950 for (xx = -xxmax; xx<=xxmax; xx+=3*nulocLength) {
952 gMC->Gspos("S07N",2*index-1,"S07B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
953 gMC->Gspos("S07N",2*index ,"S07B", xx, 0., bFrameWidth/4., 0, "ONLY");
954 gMC->Gspos("S08N",2*index-1,"S08B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
955 gMC->Gspos("S08N",2*index ,"S08B", xx, 0., bFrameWidth/4., 0, "ONLY");
962 //********************************************************************
964 //********************************************************************
965 // indices 1 and 2 for first and second chambers in the station
966 // iChamber (first chamber) kept for other quanties than Z,
967 // assumed to be the same in both chambers
968 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[8];
969 iChamber2 =(AliMUONChamber*) (*fChambers)[9];
970 zpos1=iChamber1->Z();
971 zpos2=iChamber2->Z();
972 dstation = zpos2 - zpos1;
973 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
977 tpar[0] = iChamber->RInner()-dframep;
978 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
979 tpar[2] = dstation/5.;
981 gMC->Gsvolu("C09M", "TUBE", idAir, tpar, 3);
982 gMC->Gsvolu("C10M", "TUBE", idAir, tpar, 3);
983 gMC->Gspos("C09M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
984 gMC->Gspos("C10M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
987 const Int_t nSlats5 = 7; // number of slats per quadrant
988 const Int_t nPCB5[nSlats5] = {7,7,6,6,5,4,2}; // n PCB per slat
990 // slat dimensions: slat is a MOTHER volume!!! made of air
991 Float_t slatLength5[nSlats5];
997 for (i = 0; i<nSlats5; i++){
998 slatLength5[i] = pcbLength * nPCB5[i] + 2. * dSlatLength;
999 xSlat5 = slatLength5[i]/2. - vFrameLength/2.;
1000 if (i==0) xSlat5 += 37.5;
1001 if (i==1) xSlat5 += 32; // to be checked
1002 ySlat5 = sensHeight * i - yOverlap * i;
1003 spar[0] = slatLength5[i]/2.;
1004 spar[1] = slatHeight/2.;
1005 spar[2] = slatWidth/2. * 1.01;
1006 Float_t dzCh5=spar[2]*1.01;
1007 // zSlat to be checked (odd downstream or upstream?)
1008 Float_t zSlat = (i%2 ==0)? -spar[2] : spar[2];
1009 sprintf(volNam9,"S09%d",i);
1010 gMC->Gsvolu(volNam9,"BOX",slatMaterial,spar,3);
1011 gMC->Gspos(volNam9, i*4+1,"C09M", xSlat5, ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1012 gMC->Gspos(volNam9, i*4+2,"C09M",-xSlat5, ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
1014 gMC->Gspos(volNam9, i*4+3,"C09M", xSlat5,-ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1015 gMC->Gspos(volNam9, i*4+4,"C09M",-xSlat5,-ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
1017 sprintf(volNam10,"S10%d",i);
1018 gMC->Gsvolu(volNam10,"BOX",slatMaterial,spar,3);
1019 gMC->Gspos(volNam10, i*4+1,"C10M", xSlat5, ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1020 gMC->Gspos(volNam10, i*4+2,"C10M",-xSlat5, ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
1022 gMC->Gspos(volNam10, i*4+3,"C10M", xSlat5,-ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1023 gMC->Gspos(volNam10, i*4+4,"C10M",-xSlat5,-ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
1027 // create the panel volume
1029 gMC->Gsvolu("S09C","BOX",panelMaterial,panelpar,3);
1030 gMC->Gsvolu("S10C","BOX",panelMaterial,panelpar,3);
1032 // create the rohacell volume
1034 gMC->Gsvolu("S09R","BOX",rohaMaterial,rohapar,3);
1035 gMC->Gsvolu("S10R","BOX",rohaMaterial,rohapar,3);
1037 // create the insulating material volume
1039 gMC->Gsvolu("S09I","BOX",insuMaterial,insupar,3);
1040 gMC->Gsvolu("S10I","BOX",insuMaterial,insupar,3);
1042 // create the PCB volume
1044 gMC->Gsvolu("S09P","BOX",pcbMaterial,pcbpar,3);
1045 gMC->Gsvolu("S10P","BOX",pcbMaterial,pcbpar,3);
1047 // create the sensitive volumes,
1049 gMC->Gsvolu("S09G","BOX",sensMaterial,0,0);
1050 gMC->Gsvolu("S10G","BOX",sensMaterial,0,0);
1051 // gMC->Gsvolu("S09G","BOX",sensMaterial,senspar,3);
1052 // gMC->Gsvolu("S10G","BOX",sensMaterial,senspar,3);
1055 // create the vertical frame volume
1057 gMC->Gsvolu("S09V","BOX",vFrameMaterial,vFramepar,3);
1058 gMC->Gsvolu("S10V","BOX",vFrameMaterial,vFramepar,3);
1060 // create the horizontal frame volume
1062 gMC->Gsvolu("S09H","BOX",hFrameMaterial,hFramepar,3);
1063 gMC->Gsvolu("S10H","BOX",hFrameMaterial,hFramepar,3);
1065 // create the horizontal border volume
1067 gMC->Gsvolu("S09B","BOX",bFrameMaterial,bFramepar,3);
1068 gMC->Gsvolu("S10B","BOX",bFrameMaterial,bFramepar,3);
1071 for (i = 0; i<nSlats5; i++){
1072 sprintf(volNam9,"S09%d",i);
1073 sprintf(volNam10,"S10%d",i);
1074 Float_t xvFrame = (slatLength5[i] - vFrameLength)/2.;
1075 // position the vertical frames
1076 gMC->Gspos("S09V",2*i-1,volNam9, xvFrame, 0., 0. , 0, "ONLY");
1077 gMC->Gspos("S09V",2*i ,volNam9,-xvFrame, 0., 0. , 0, "ONLY");
1078 gMC->Gspos("S10V",2*i-1,volNam10, xvFrame, 0., 0. , 0, "ONLY");
1079 gMC->Gspos("S10V",2*i ,volNam10,-xvFrame, 0., 0. , 0, "ONLY");
1081 // position the panels and the insulating material
1082 for (j=0; j<nPCB5[i]; j++){
1084 Float_t xx = sensLength * (-nPCB5[i]/2.+j+.5);
1086 Float_t zPanel = spar[2] - panelpar[2];
1087 gMC->Gspos("S09C",2*index-1,volNam9, xx, 0., zPanel , 0, "ONLY");
1088 gMC->Gspos("S09C",2*index ,volNam9, xx, 0.,-zPanel , 0, "ONLY");
1089 gMC->Gspos("S10C",2*index-1,volNam10, xx, 0., zPanel , 0, "ONLY");
1090 gMC->Gspos("S10C",2*index ,volNam10, xx, 0.,-zPanel , 0, "ONLY");
1092 gMC->Gspos("S09I",index,volNam9, xx, 0., 0 , 0, "ONLY");
1093 gMC->Gspos("S10I",index,volNam10, xx, 0., 0 , 0, "ONLY");
1097 // position the rohacell volume inside the panel volume
1098 gMC->Gspos("S09R",1,"S09C",0.,0.,0.,0,"ONLY");
1099 gMC->Gspos("S10R",1,"S10C",0.,0.,0.,0,"ONLY");
1101 // position the PCB volume inside the insulating material volume
1102 gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
1103 gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
1104 // position the horizontal frame volume inside the PCB volume
1105 gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
1106 gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
1107 // position the sensitive volume inside the horizontal frame volume
1108 gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
1109 gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
1110 // gMC->Gspos("S09G",1,"S09H",0.,0.,0.,0,"ONLY");
1111 // gMC->Gspos("S10G",1,"S10H",0.,0.,0.,0,"ONLY");
1112 // position the border volumes inside the PCB volume
1113 Float_t yborder = ( pcbHeight - bFrameHeight ) / 2.;
1114 gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
1115 gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
1116 gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
1117 gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
1119 // create the NULOC volume and position it in the horizontal frame
1121 gMC->Gsvolu("S09N","BOX",nulocMaterial,nulocpar,3);
1122 gMC->Gsvolu("S10N","BOX",nulocMaterial,nulocpar,3);
1124 for (xx = -xxmax; xx<=xxmax; xx+=3*nulocLength) {
1126 gMC->Gspos("S09N",2*index-1,"S09B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1127 gMC->Gspos("S09N",2*index ,"S09B", xx, 0., bFrameWidth/4., 0, "ONLY");
1128 gMC->Gspos("S10N",2*index-1,"S10B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1129 gMC->Gspos("S10N",2*index ,"S10B", xx, 0., bFrameWidth/4., 0, "ONLY");
1134 ///////////////////////////////////////
1135 // GEOMETRY FOR THE TRIGGER CHAMBERS //
1136 ///////////////////////////////////////
1138 // 03/00 P. Dupieux : introduce a slighly more realistic
1139 // geom. of the trigger readout planes with
1140 // 2 Zpos per trigger plane (alternate
1141 // between left and right of the trigger)
1143 // Parameters of the Trigger Chambers
1146 const Float_t kXMC1MIN=34.;
1147 const Float_t kXMC1MED=51.;
1148 const Float_t kXMC1MAX=272.;
1149 const Float_t kYMC1MIN=34.;
1150 const Float_t kYMC1MAX=51.;
1151 const Float_t kRMIN1=50.;
1152 const Float_t kRMAX1=62.;
1153 const Float_t kRMIN2=50.;
1154 const Float_t kRMAX2=66.;
1156 // zposition of the middle of the gas gap in mother vol
1157 const Float_t kZMCm=-3.6;
1158 const Float_t kZMCp=+3.6;
1161 // TRIGGER STATION 1 - TRIGGER STATION 1 - TRIGGER STATION 1
1163 // iChamber 1 and 2 for first and second chambers in the station
1164 // iChamber (first chamber) kept for other quanties than Z,
1165 // assumed to be the same in both chambers
1166 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[10];
1167 iChamber2 =(AliMUONChamber*) (*fChambers)[11];
1170 // zpos1 and zpos2 are now the middle of the first and second
1171 // plane of station 1 :
1172 // zpos1=(16075+15995)/2=16035 mm, thick/2=40 mm
1173 // zpos2=(16225+16145)/2=16185 mm, thick/2=40 mm
1175 // zpos1m=15999 mm , zpos1p=16071 mm (middles of gas gaps)
1176 // zpos2m=16149 mm , zpos2p=16221 mm (middles of gas gaps)
1177 // rem : the total thickness accounts for 1 mm of al on both
1178 // side of the RPCs (see zpos1 and zpos2), as previously
1180 zpos1=iChamber1->Z();
1181 zpos2=iChamber2->Z();
1184 // Mother volume definition
1185 tpar[0] = iChamber->RInner();
1186 tpar[1] = iChamber->ROuter();
1188 gMC->Gsvolu("CM11", "TUBE", idAir, tpar, 3);
1189 gMC->Gsvolu("CM12", "TUBE", idAir, tpar, 3);
1191 // Definition of the flange between the beam shielding and the RPC
1196 gMC->Gsvolu("CF1A", "TUBE", idAlu1, tpar, 3); //Al
1197 gMC->Gspos("CF1A", 1, "CM11", 0., 0., 0., 0, "MANY");
1198 gMC->Gspos("CF1A", 2, "CM12", 0., 0., 0., 0, "MANY");
1201 // FIRST PLANE OF STATION 1
1203 // ratios of zpos1m/zpos1p and inverse for first plane
1204 Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
1208 // Definition of prototype for chambers in the first plane
1214 gMC->Gsvolu("CC1A", "BOX ", idAlu1, tpar, 0); //Al
1215 gMC->Gsvolu("CB1A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1216 gMC->Gsvolu("CG1A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1222 const Float_t kXMC1A=kXMC1MED+(kXMC1MAX-kXMC1MED)/2.;
1223 const Float_t kYMC1Am=0.;
1224 const Float_t kYMC1Ap=0.;
1227 gMC->Gsposp("CG1A", 1, "CB1A", 0., 0., 0., 0, "ONLY",tpar,3);
1229 gMC->Gsposp("CB1A", 1, "CC1A", 0., 0., 0., 0, "ONLY",tpar,3);
1232 tpar[0] = (kXMC1MAX-kXMC1MED)/2.;
1235 gMC->Gsposp("CC1A", 1, "CM11",kXMC1A,kYMC1Am,kZMCm, 0, "ONLY", tpar, 3);
1236 gMC->Gsposp("CC1A", 2, "CM11",-kXMC1A,kYMC1Ap,kZMCp, 0, "ONLY", tpar, 3);
1239 Float_t tpar1save=tpar[1];
1240 Float_t y1msave=kYMC1Am;
1241 Float_t y1psave=kYMC1Ap;
1243 tpar[0] = (kXMC1MAX-kXMC1MIN)/2.;
1244 tpar[1] = (kYMC1MAX-kYMC1MIN)/2.;
1246 const Float_t kXMC1B=kXMC1MIN+tpar[0];
1247 const Float_t kYMC1Bp=(y1msave+tpar1save)*zpm+tpar[1];
1248 const Float_t kYMC1Bm=(y1psave+tpar1save)*zmp+tpar[1];
1250 gMC->Gsposp("CC1A", 3, "CM11",kXMC1B,kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
1251 gMC->Gsposp("CC1A", 4, "CM11",-kXMC1B,kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
1252 gMC->Gsposp("CC1A", 5, "CM11",kXMC1B,-kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
1253 gMC->Gsposp("CC1A", 6, "CM11",-kXMC1B,-kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
1255 // chamber type C (end of type B !!)
1260 tpar[0] = kXMC1MAX/2;
1261 tpar[1] = kYMC1MAX/2;
1263 const Float_t kXMC1C=tpar[0];
1264 // warning : same Z than type B
1265 const Float_t kYMC1Cp=(y1psave+tpar1save)*1.+tpar[1];
1266 const Float_t kYMC1Cm=(y1msave+tpar1save)*1.+tpar[1];
1268 gMC->Gsposp("CC1A", 7, "CM11",kXMC1C,kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1269 gMC->Gsposp("CC1A", 8, "CM11",-kXMC1C,kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1270 gMC->Gsposp("CC1A", 9, "CM11",kXMC1C,-kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1271 gMC->Gsposp("CC1A", 10, "CM11",-kXMC1C,-kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1273 // chamber type D, E and F (same size)
1278 tpar[0] = kXMC1MAX/2.;
1281 const Float_t kXMC1D=tpar[0];
1282 const Float_t kYMC1Dp=(y1msave+tpar1save)*zpm+tpar[1];
1283 const Float_t kYMC1Dm=(y1psave+tpar1save)*zmp+tpar[1];
1285 gMC->Gsposp("CC1A", 11, "CM11",kXMC1D,kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1286 gMC->Gsposp("CC1A", 12, "CM11",-kXMC1D,kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1287 gMC->Gsposp("CC1A", 13, "CM11",kXMC1D,-kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1288 gMC->Gsposp("CC1A", 14, "CM11",-kXMC1D,-kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1294 const Float_t kYMC1Ep=(y1msave+tpar1save)*zpm+tpar[1];
1295 const Float_t kYMC1Em=(y1psave+tpar1save)*zmp+tpar[1];
1297 gMC->Gsposp("CC1A", 15, "CM11",kXMC1D,kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1298 gMC->Gsposp("CC1A", 16, "CM11",-kXMC1D,kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1299 gMC->Gsposp("CC1A", 17, "CM11",kXMC1D,-kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1300 gMC->Gsposp("CC1A", 18, "CM11",-kXMC1D,-kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1305 const Float_t kYMC1Fp=(y1msave+tpar1save)*zpm+tpar[1];
1306 const Float_t kYMC1Fm=(y1psave+tpar1save)*zmp+tpar[1];
1308 gMC->Gsposp("CC1A", 19, "CM11",kXMC1D,kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1309 gMC->Gsposp("CC1A", 20, "CM11",-kXMC1D,kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1310 gMC->Gsposp("CC1A", 21, "CM11",kXMC1D,-kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1311 gMC->Gsposp("CC1A", 22, "CM11",-kXMC1D,-kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1313 // Positioning first plane in ALICE
1314 gMC->Gspos("CM11", 1, "ALIC", 0., 0., zpos1, 0, "ONLY");
1316 // End of geometry definition for the first plane of station 1
1320 // SECOND PLANE OF STATION 1 : proj ratio = zpos2/zpos1
1322 const Float_t kZ12=zpos2/zpos1;
1324 // Definition of prototype for chambers in the second plane of station 1
1330 gMC->Gsvolu("CC2A", "BOX ", idAlu1, tpar, 0); //Al
1331 gMC->Gsvolu("CB2A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1332 gMC->Gsvolu("CG2A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1338 const Float_t kXMC2A=kXMC1A*kZ12;
1339 const Float_t kYMC2Am=0.;
1340 const Float_t kYMC2Ap=0.;
1343 gMC->Gsposp("CG2A", 1, "CB2A", 0., 0., 0., 0, "ONLY",tpar,3);
1345 gMC->Gsposp("CB2A", 1, "CC2A", 0., 0., 0., 0, "ONLY",tpar,3);
1348 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ12;
1349 tpar[1] = kYMC1MIN*kZ12;
1351 gMC->Gsposp("CC2A", 1, "CM12",kXMC2A,kYMC2Am,kZMCm, 0, "ONLY", tpar, 3);
1352 gMC->Gsposp("CC2A", 2, "CM12",-kXMC2A,kYMC2Ap,kZMCp, 0, "ONLY", tpar, 3);
1357 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ12;
1358 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ12;
1360 const Float_t kXMC2B=kXMC1B*kZ12;
1361 const Float_t kYMC2Bp=kYMC1Bp*kZ12;
1362 const Float_t kYMC2Bm=kYMC1Bm*kZ12;
1363 gMC->Gsposp("CC2A", 3, "CM12",kXMC2B,kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1364 gMC->Gsposp("CC2A", 4, "CM12",-kXMC2B,kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1365 gMC->Gsposp("CC2A", 5, "CM12",kXMC2B,-kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1366 gMC->Gsposp("CC2A", 6, "CM12",-kXMC2B,-kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1369 // chamber type C (end of type B !!)
1371 tpar[0] = (kXMC1MAX/2)*kZ12;
1372 tpar[1] = (kYMC1MAX/2)*kZ12;
1374 const Float_t kXMC2C=kXMC1C*kZ12;
1375 const Float_t kYMC2Cp=kYMC1Cp*kZ12;
1376 const Float_t kYMC2Cm=kYMC1Cm*kZ12;
1377 gMC->Gsposp("CC2A", 7, "CM12",kXMC2C,kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1378 gMC->Gsposp("CC2A", 8, "CM12",-kXMC2C,kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1379 gMC->Gsposp("CC2A", 9, "CM12",kXMC2C,-kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1380 gMC->Gsposp("CC2A", 10, "CM12",-kXMC2C,-kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1382 // chamber type D, E and F (same size)
1384 tpar[0] = (kXMC1MAX/2.)*kZ12;
1385 tpar[1] = kYMC1MIN*kZ12;
1387 const Float_t kXMC2D=kXMC1D*kZ12;
1388 const Float_t kYMC2Dp=kYMC1Dp*kZ12;
1389 const Float_t kYMC2Dm=kYMC1Dm*kZ12;
1390 gMC->Gsposp("CC2A", 11, "CM12",kXMC2D,kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1391 gMC->Gsposp("CC2A", 12, "CM12",-kXMC2D,kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1392 gMC->Gsposp("CC2A", 13, "CM12",kXMC2D,-kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1393 gMC->Gsposp("CC2A", 14, "CM12",-kXMC2D,-kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1395 const Float_t kYMC2Ep=kYMC1Ep*kZ12;
1396 const Float_t kYMC2Em=kYMC1Em*kZ12;
1397 gMC->Gsposp("CC2A", 15, "CM12",kXMC2D,kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1398 gMC->Gsposp("CC2A", 16, "CM12",-kXMC2D,kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1399 gMC->Gsposp("CC2A", 17, "CM12",kXMC2D,-kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1400 gMC->Gsposp("CC2A", 18, "CM12",-kXMC2D,-kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1403 const Float_t kYMC2Fp=kYMC1Fp*kZ12;
1404 const Float_t kYMC2Fm=kYMC1Fm*kZ12;
1405 gMC->Gsposp("CC2A", 19, "CM12",kXMC2D,kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1406 gMC->Gsposp("CC2A", 20, "CM12",-kXMC2D,kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1407 gMC->Gsposp("CC2A", 21, "CM12",kXMC2D,-kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1408 gMC->Gsposp("CC2A", 22, "CM12",-kXMC2D,-kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1410 // Positioning second plane of station 1 in ALICE
1412 gMC->Gspos("CM12", 1, "ALIC", 0., 0., zpos2, 0, "ONLY");
1414 // End of geometry definition for the second plane of station 1
1418 // TRIGGER STATION 2 - TRIGGER STATION 2 - TRIGGER STATION 2
1421 // zpos3 and zpos4 are now the middle of the first and second
1422 // plane of station 2 :
1423 // zpos3=(17075+16995)/2=17035 mm, thick/2=40 mm
1424 // zpos4=(17225+17145)/2=17185 mm, thick/2=40 mm
1426 // zpos3m=16999 mm , zpos3p=17071 mm (middles of gas gaps)
1427 // zpos4m=17149 mm , zpos4p=17221 mm (middles of gas gaps)
1428 // rem : the total thickness accounts for 1 mm of al on both
1429 // side of the RPCs (see zpos3 and zpos4), as previously
1430 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[12];
1431 iChamber2 =(AliMUONChamber*) (*fChambers)[13];
1432 Float_t zpos3=iChamber1->Z();
1433 Float_t zpos4=iChamber2->Z();
1436 // Mother volume definition
1437 tpar[0] = iChamber->RInner();
1438 tpar[1] = iChamber->ROuter();
1441 gMC->Gsvolu("CM21", "TUBE", idAir, tpar, 3);
1442 gMC->Gsvolu("CM22", "TUBE", idAir, tpar, 3);
1444 // Definition of the flange between the beam shielding and the RPC
1445 // ???? interface shielding
1451 gMC->Gsvolu("CF2A", "TUBE", idAlu1, tpar, 3); //Al
1452 gMC->Gspos("CF2A", 1, "CM21", 0., 0., 0., 0, "MANY");
1453 gMC->Gspos("CF2A", 2, "CM22", 0., 0., 0., 0, "MANY");
1457 // FIRST PLANE OF STATION 2 : proj ratio = zpos3/zpos1
1459 const Float_t kZ13=zpos3/zpos1;
1461 // Definition of prototype for chambers in the first plane of station 2
1466 gMC->Gsvolu("CC3A", "BOX ", idAlu1, tpar, 0); //Al
1467 gMC->Gsvolu("CB3A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1468 gMC->Gsvolu("CG3A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1475 const Float_t kXMC3A=kXMC1A*kZ13;
1476 const Float_t kYMC3Am=0.;
1477 const Float_t kYMC3Ap=0.;
1480 gMC->Gsposp("CG3A", 1, "CB3A", 0., 0., 0., 0, "ONLY",tpar,3);
1482 gMC->Gsposp("CB3A", 1, "CC3A", 0., 0., 0., 0, "ONLY",tpar,3);
1485 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ13;
1486 tpar[1] = kYMC1MIN*kZ13;
1487 gMC->Gsposp("CC3A", 1, "CM21",kXMC3A,kYMC3Am,kZMCm, 0, "ONLY", tpar, 3);
1488 gMC->Gsposp("CC3A", 2, "CM21",-kXMC3A,kYMC3Ap,kZMCp, 0, "ONLY", tpar, 3);
1492 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ13;
1493 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ13;
1495 const Float_t kXMC3B=kXMC1B*kZ13;
1496 const Float_t kYMC3Bp=kYMC1Bp*kZ13;
1497 const Float_t kYMC3Bm=kYMC1Bm*kZ13;
1498 gMC->Gsposp("CC3A", 3, "CM21",kXMC3B,kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1499 gMC->Gsposp("CC3A", 4, "CM21",-kXMC3B,kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1500 gMC->Gsposp("CC3A", 5, "CM21",kXMC3B,-kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1501 gMC->Gsposp("CC3A", 6, "CM21",-kXMC3B,-kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1504 // chamber type C (end of type B !!)
1505 tpar[0] = (kXMC1MAX/2)*kZ13;
1506 tpar[1] = (kYMC1MAX/2)*kZ13;
1508 const Float_t kXMC3C=kXMC1C*kZ13;
1509 const Float_t kYMC3Cp=kYMC1Cp*kZ13;
1510 const Float_t kYMC3Cm=kYMC1Cm*kZ13;
1511 gMC->Gsposp("CC3A", 7, "CM21",kXMC3C,kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1512 gMC->Gsposp("CC3A", 8, "CM21",-kXMC3C,kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1513 gMC->Gsposp("CC3A", 9, "CM21",kXMC3C,-kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1514 gMC->Gsposp("CC3A", 10, "CM21",-kXMC3C,-kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1517 // chamber type D, E and F (same size)
1519 tpar[0] = (kXMC1MAX/2.)*kZ13;
1520 tpar[1] = kYMC1MIN*kZ13;
1522 const Float_t kXMC3D=kXMC1D*kZ13;
1523 const Float_t kYMC3Dp=kYMC1Dp*kZ13;
1524 const Float_t kYMC3Dm=kYMC1Dm*kZ13;
1525 gMC->Gsposp("CC3A", 11, "CM21",kXMC3D,kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1526 gMC->Gsposp("CC3A", 12, "CM21",-kXMC3D,kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1527 gMC->Gsposp("CC3A", 13, "CM21",kXMC3D,-kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1528 gMC->Gsposp("CC3A", 14, "CM21",-kXMC3D,-kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1530 const Float_t kYMC3Ep=kYMC1Ep*kZ13;
1531 const Float_t kYMC3Em=kYMC1Em*kZ13;
1532 gMC->Gsposp("CC3A", 15, "CM21",kXMC3D,kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1533 gMC->Gsposp("CC3A", 16, "CM21",-kXMC3D,kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1534 gMC->Gsposp("CC3A", 17, "CM21",kXMC3D,-kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1535 gMC->Gsposp("CC3A", 18, "CM21",-kXMC3D,-kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1537 const Float_t kYMC3Fp=kYMC1Fp*kZ13;
1538 const Float_t kYMC3Fm=kYMC1Fm*kZ13;
1539 gMC->Gsposp("CC3A", 19, "CM21",kXMC3D,kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1540 gMC->Gsposp("CC3A", 20, "CM21",-kXMC3D,kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1541 gMC->Gsposp("CC3A", 21, "CM21",kXMC3D,-kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1542 gMC->Gsposp("CC3A", 22, "CM21",-kXMC3D,-kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1545 // Positioning first plane of station 2 in ALICE
1547 gMC->Gspos("CM21", 1, "ALIC", 0., 0., zpos3, 0, "ONLY");
1549 // End of geometry definition for the first plane of station 2
1554 // SECOND PLANE OF STATION 2 : proj ratio = zpos4/zpos1
1556 const Float_t kZ14=zpos4/zpos1;
1558 // Definition of prototype for chambers in the second plane of station 2
1564 gMC->Gsvolu("CC4A", "BOX ", idAlu1, tpar, 0); //Al
1565 gMC->Gsvolu("CB4A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1566 gMC->Gsvolu("CG4A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1572 const Float_t kXMC4A=kXMC1A*kZ14;
1573 const Float_t kYMC4Am=0.;
1574 const Float_t kYMC4Ap=0.;
1577 gMC->Gsposp("CG4A", 1, "CB4A", 0., 0., 0., 0, "ONLY",tpar,3);
1579 gMC->Gsposp("CB4A", 1, "CC4A", 0., 0., 0., 0, "ONLY",tpar,3);
1582 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ14;
1583 tpar[1] = kYMC1MIN*kZ14;
1584 gMC->Gsposp("CC4A", 1, "CM22",kXMC4A,kYMC4Am,kZMCm, 0, "ONLY", tpar, 3);
1585 gMC->Gsposp("CC4A", 2, "CM22",-kXMC4A,kYMC4Ap,kZMCp, 0, "ONLY", tpar, 3);
1589 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ14;
1590 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ14;
1592 const Float_t kXMC4B=kXMC1B*kZ14;
1593 const Float_t kYMC4Bp=kYMC1Bp*kZ14;
1594 const Float_t kYMC4Bm=kYMC1Bm*kZ14;
1595 gMC->Gsposp("CC4A", 3, "CM22",kXMC4B,kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1596 gMC->Gsposp("CC4A", 4, "CM22",-kXMC4B,kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1597 gMC->Gsposp("CC4A", 5, "CM22",kXMC4B,-kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1598 gMC->Gsposp("CC4A", 6, "CM22",-kXMC4B,-kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1601 // chamber type C (end of type B !!)
1602 tpar[0] =(kXMC1MAX/2)*kZ14;
1603 tpar[1] = (kYMC1MAX/2)*kZ14;
1605 const Float_t kXMC4C=kXMC1C*kZ14;
1606 const Float_t kYMC4Cp=kYMC1Cp*kZ14;
1607 const Float_t kYMC4Cm=kYMC1Cm*kZ14;
1608 gMC->Gsposp("CC4A", 7, "CM22",kXMC4C,kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1609 gMC->Gsposp("CC4A", 8, "CM22",-kXMC4C,kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1610 gMC->Gsposp("CC4A", 9, "CM22",kXMC4C,-kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1611 gMC->Gsposp("CC4A", 10, "CM22",-kXMC4C,-kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1614 // chamber type D, E and F (same size)
1615 tpar[0] = (kXMC1MAX/2.)*kZ14;
1616 tpar[1] = kYMC1MIN*kZ14;
1618 const Float_t kXMC4D=kXMC1D*kZ14;
1619 const Float_t kYMC4Dp=kYMC1Dp*kZ14;
1620 const Float_t kYMC4Dm=kYMC1Dm*kZ14;
1621 gMC->Gsposp("CC4A", 11, "CM22",kXMC4D,kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1622 gMC->Gsposp("CC4A", 12, "CM22",-kXMC4D,kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1623 gMC->Gsposp("CC4A", 13, "CM22",kXMC4D,-kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1624 gMC->Gsposp("CC4A", 14, "CM22",-kXMC4D,-kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1626 const Float_t kYMC4Ep=kYMC1Ep*kZ14;
1627 const Float_t kYMC4Em=kYMC1Em*kZ14;
1628 gMC->Gsposp("CC4A", 15, "CM22",kXMC4D,kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1629 gMC->Gsposp("CC4A", 16, "CM22",-kXMC4D,kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1630 gMC->Gsposp("CC4A", 17, "CM22",kXMC4D,-kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1631 gMC->Gsposp("CC4A", 18, "CM22",-kXMC4D,-kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1633 const Float_t kYMC4Fp=kYMC1Fp*kZ14;
1634 const Float_t kYMC4Fm=kYMC1Fm*kZ14;
1635 gMC->Gsposp("CC4A", 19, "CM22",kXMC4D,kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1636 gMC->Gsposp("CC4A", 20, "CM22",-kXMC4D,kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1637 gMC->Gsposp("CC4A", 21, "CM22",kXMC4D,-kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1638 gMC->Gsposp("CC4A", 22, "CM22",-kXMC4D,-kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1641 // Positioning second plane of station 2 in ALICE
1643 gMC->Gspos("CM22", 1, "ALIC", 0., 0., zpos4, 0, "ONLY");
1645 // End of geometry definition for the second plane of station 2
1647 // End of trigger geometry definition
1653 //___________________________________________
1654 void AliMUONv1::CreateMaterials()
1656 // *** DEFINITION OF AVAILABLE MUON MATERIALS ***
1659 Float_t ag1[3] = { 39.95,12.01,16. };
1660 Float_t zg1[3] = { 18.,6.,8. };
1661 Float_t wg1[3] = { .8,.0667,.13333 };
1662 Float_t dg1 = .001821;
1664 // Ar-buthane-freon gas -- trigger chambers
1665 Float_t atr1[4] = { 39.95,12.01,1.01,19. };
1666 Float_t ztr1[4] = { 18.,6.,1.,9. };
1667 Float_t wtr1[4] = { .56,.1262857,.2857143,.028 };
1668 Float_t dtr1 = .002599;
1671 Float_t agas[3] = { 39.95,12.01,16. };
1672 Float_t zgas[3] = { 18.,6.,8. };
1673 Float_t wgas[3] = { .74,.086684,.173316 };
1674 Float_t dgas = .0018327;
1676 // Ar-Isobutane gas (80%+20%) -- tracking
1677 Float_t ag[3] = { 39.95,12.01,1.01 };
1678 Float_t zg[3] = { 18.,6.,1. };
1679 Float_t wg[3] = { .8,.057,.143 };
1680 Float_t dg = .0019596;
1682 // Ar-Isobutane-Forane-SF6 gas (49%+7%+40%+4%) -- trigger
1683 Float_t atrig[5] = { 39.95,12.01,1.01,19.,32.066 };
1684 Float_t ztrig[5] = { 18.,6.,1.,9.,16. };
1685 Float_t wtrig[5] = { .49,1.08,1.5,1.84,0.04 };
1686 Float_t dtrig = .0031463;
1690 Float_t abak[3] = {12.01 , 1.01 , 16.};
1691 Float_t zbak[3] = {6. , 1. , 8.};
1692 Float_t wbak[3] = {6. , 6. , 1.};
1695 Float_t epsil, stmin, deemax, tmaxfd, stemax;
1697 Int_t iSXFLD = gAlice->Field()->Integ();
1698 Float_t sXMGMX = gAlice->Field()->Max();
1700 // --- Define the various materials for GEANT ---
1701 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1702 AliMaterial(10, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1703 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
1704 AliMixture(19, "Bakelite$", abak, zbak, dbak, -3, wbak);
1705 AliMixture(20, "ArC4H10 GAS$", ag, zg, dg, 3, wg);
1706 AliMixture(21, "TRIG GAS$", atrig, ztrig, dtrig, -5, wtrig);
1707 AliMixture(22, "ArCO2 80%$", ag1, zg1, dg1, 3, wg1);
1708 AliMixture(23, "Ar-freon $", atr1, ztr1, dtr1, 4, wtr1);
1709 AliMixture(24, "ArCO2 GAS$", agas, zgas, dgas, 3, wgas);
1710 // materials for slat:
1711 // Sensitive area: gas (already defined)
1713 // insulating material and frame: vetronite
1714 // walls: carbon, rohacell, carbon
1715 Float_t aglass[5]={12.01, 28.09, 16., 10.8, 23.};
1716 Float_t zglass[5]={ 6., 14., 8., 5., 11.};
1717 Float_t wglass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
1718 Float_t dglass=1.74;
1720 // rohacell: C9 H13 N1 O2
1721 Float_t arohac[4] = {12.01, 1.01, 14.010, 16.};
1722 Float_t zrohac[4] = { 6., 1., 7., 8.};
1723 Float_t wrohac[4] = { 9., 13., 1., 2.};
1724 Float_t drohac = 0.03;
1726 AliMaterial(31, "COPPER$", 63.54, 29., 8.96, 1.4, 0.);
1727 AliMixture(32, "Vetronite$",aglass, zglass, dglass, 5, wglass);
1728 AliMaterial(33, "Carbon$", 12.01, 6., 2.265, 18.8, 49.9);
1729 AliMixture(34, "Rohacell$", arohac, zrohac, drohac, -4, wrohac);
1732 epsil = .001; // Tracking precision,
1733 stemax = -1.; // Maximum displacement for multiple scat
1734 tmaxfd = -20.; // Maximum angle due to field deflection
1735 deemax = -.3; // Maximum fractional energy loss, DLS
1739 AliMedium(1, "AIR_CH_US ", 15, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1743 AliMedium(4, "ALU_CH_US ", 9, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1744 fMaxDestepAlu, epsil, stmin);
1745 AliMedium(5, "ALU_CH_US ", 10, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1746 fMaxDestepAlu, epsil, stmin);
1750 AliMedium(6, "AR_CH_US ", 20, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1751 fMaxDestepGas, epsil, stmin);
1753 // Ar-Isobuthane-Forane-SF6 gas
1755 AliMedium(7, "GAS_CH_TRIGGER ", 21, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1757 AliMedium(8, "BAKE_CH_TRIGGER ", 19, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1758 fMaxDestepAlu, epsil, stmin);
1760 AliMedium(9, "ARG_CO2 ", 22, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1761 fMaxDestepAlu, epsil, stmin);
1762 // tracking media for slats: check the parameters!!
1763 AliMedium(11, "PCB_COPPER ", 31, 0, iSXFLD, sXMGMX, tmaxfd,
1764 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1765 AliMedium(12, "VETRONITE ", 32, 0, iSXFLD, sXMGMX, tmaxfd,
1766 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1767 AliMedium(13, "CARBON ", 33, 0, iSXFLD, sXMGMX, tmaxfd,
1768 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1769 AliMedium(14, "Rohacell ", 34, 0, iSXFLD, sXMGMX, tmaxfd,
1770 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1773 //___________________________________________
1775 void AliMUONv1::Init()
1778 // Initialize Tracking Chambers
1781 printf("\n\n\n Start Init for version 1 - CPC chamber type\n\n\n");
1783 for (i=0; i<AliMUONConstants::NCh(); i++) {
1784 ( (AliMUONChamber*) (*fChambers)[i])->Init();
1788 // Set the chamber (sensitive region) GEANT identifier
1789 AliMC* gMC = AliMC::GetMC();
1790 ((AliMUONChamber*)(*fChambers)[0])->SetGid(gMC->VolId("C01G"));
1791 ((AliMUONChamber*)(*fChambers)[1])->SetGid(gMC->VolId("C02G"));
1793 ((AliMUONChamber*)(*fChambers)[2])->SetGid(gMC->VolId("C03G"));
1794 ((AliMUONChamber*)(*fChambers)[3])->SetGid(gMC->VolId("C04G"));
1796 ((AliMUONChamber*)(*fChambers)[4])->SetGid(gMC->VolId("S05G"));
1797 ((AliMUONChamber*)(*fChambers)[5])->SetGid(gMC->VolId("S06G"));
1799 ((AliMUONChamber*)(*fChambers)[6])->SetGid(gMC->VolId("S07G"));
1800 ((AliMUONChamber*)(*fChambers)[7])->SetGid(gMC->VolId("S08G"));
1802 ((AliMUONChamber*)(*fChambers)[8])->SetGid(gMC->VolId("S09G"));
1803 ((AliMUONChamber*)(*fChambers)[9])->SetGid(gMC->VolId("S10G"));
1805 ((AliMUONChamber*)(*fChambers)[10])->SetGid(gMC->VolId("CG1A"));
1806 ((AliMUONChamber*)(*fChambers)[11])->SetGid(gMC->VolId("CG2A"));
1807 ((AliMUONChamber*)(*fChambers)[12])->SetGid(gMC->VolId("CG3A"));
1808 ((AliMUONChamber*)(*fChambers)[13])->SetGid(gMC->VolId("CG4A"));
1810 printf("\n\n\n Finished Init for version 0 - CPC chamber type\n\n\n");
1813 printf("\n\n\n Start Init for Trigger Circuits\n\n\n");
1814 for (i=0; i<AliMUONConstants::NTriggerCircuit(); i++) {
1815 ( (AliMUONTriggerCircuit*) (*fTriggerCircuits)[i])->Init(i);
1817 printf(" Finished Init for Trigger Circuits\n\n\n");
1822 //___________________________________________
1823 void AliMUONv1::StepManager()
1827 static Int_t vol[2];
1832 Float_t destep, step;
1834 static Float_t eloss, eloss2, xhit, yhit, zhit, tof, tlength;
1835 const Float_t kBig=1.e10;
1837 static Float_t hits[15];
1839 TClonesArray &lhits = *fHits;
1842 // Set maximum step size for gas
1843 // numed=gMC->GetMedium();
1845 // Only charged tracks
1846 if( !(gMC->TrackCharge()) ) return;
1848 // Only gas gap inside chamber
1849 // Tag chambers and record hits when track enters
1851 id=gMC->CurrentVolID(copy);
1853 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
1854 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
1859 if (idvol == -1) return;
1861 // Get current particle id (ipart), track position (pos) and momentum (mom)
1862 gMC->TrackPosition(pos);
1863 gMC->TrackMomentum(mom);
1865 ipart = gMC->TrackPid();
1866 //Int_t ipart1 = gMC->IdFromPDG(ipart);
1867 //printf("ich, ipart %d %d \n",vol[0],ipart1);
1870 // momentum loss and steplength in last step
1871 destep = gMC->Edep();
1872 step = gMC->TrackStep();
1875 // record hits when track enters ...
1876 if( gMC->IsTrackEntering()) {
1877 gMC->SetMaxStep(fMaxStepGas);
1878 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1879 Double_t rt = TMath::Sqrt(tc);
1880 Double_t pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1881 Double_t tx=mom[0]/pmom;
1882 Double_t ty=mom[1]/pmom;
1883 Double_t tz=mom[2]/pmom;
1884 Double_t s=((AliMUONChamber*)(*fChambers)[idvol])
1887 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
1888 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1889 hits[0] = Float_t(ipart); // Geant3 particle type
1890 hits[1] = pos[0]+s*tx; // X-position for hit
1891 hits[2] = pos[1]+s*ty; // Y-position for hit
1892 hits[3] = pos[2]+s*tz; // Z-position for hit
1893 hits[4] = theta; // theta angle of incidence
1894 hits[5] = phi; // phi angle of incidence
1895 hits[8] = (Float_t) fNPadHits; // first padhit
1896 hits[9] = -1; // last pad hit
1899 hits[10] = mom[3]; // hit momentum P
1900 hits[11] = mom[0]; // Px/P
1901 hits[12] = mom[1]; // Py/P
1902 hits[13] = mom[2]; // Pz/P
1904 tof=gMC->TrackTime();
1905 hits[14] = tof; // Time of flight
1906 // phi angle of incidence
1913 // Only if not trigger chamber
1918 if(idvol<AliMUONConstants::NTrackingCh()) {
1920 // Initialize hit position (cursor) in the segmentation model
1921 ((AliMUONChamber*) (*fChambers)[idvol])
1922 ->SigGenInit(pos[0], pos[1], pos[2]);
1925 //printf("In the Trigger Chamber #%d\n",idvol-9);
1931 // Calculate the charge induced on a pad (disintegration) in case
1933 // Mip left chamber ...
1934 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1935 gMC->SetMaxStep(kBig);
1940 Float_t localPos[3];
1941 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
1942 gMC->Gmtod(globalPos,localPos,1);
1944 if(idvol<AliMUONConstants::NTrackingCh()) {
1945 // tracking chambers
1946 x0 = 0.5*(xhit+pos[0]);
1947 y0 = 0.5*(yhit+pos[1]);
1948 z0 = 0.5*(zhit+pos[2]);
1949 // z0 = localPos[2];
1959 if (eloss >0) MakePadHits(x0,y0,z0,eloss,tof,idvol);
1964 if (fNPadHits > (Int_t)hits[8]) {
1966 hits[9]= (Float_t) fNPadHits;
1969 new(lhits[fNhits++])
1970 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1973 // Check additional signal generation conditions
1974 // defined by the segmentation
1975 // model (boundary crossing conditions)
1976 // only for tracking chambers
1978 ((idvol < AliMUONConstants::NTrackingCh()) &&
1979 ((AliMUONChamber*) (*fChambers)[idvol])->SigGenCond(pos[0], pos[1], pos[2]))
1981 ((AliMUONChamber*) (*fChambers)[idvol])
1982 ->SigGenInit(pos[0], pos[1], pos[2]);
1984 Float_t localPos[3];
1985 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
1986 gMC->Gmtod(globalPos,localPos,1);
1989 if (eloss > 0 && idvol < AliMUONConstants::NTrackingCh())
1990 MakePadHits(0.5*(xhit+pos[0]),0.5*(yhit+pos[1]),pos[2],eloss,tof,idvol);
1997 // nothing special happened, add up energy loss