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 Revision 1.6 2000/10/02 17:20:45 egangler
19 Cleaning of the code (continued ) :
22 -> some useless includes removed or replaced by "class" statement
24 Revision 1.5 2000/06/28 15:16:35 morsch
25 (1) Client code adapted to new method signatures in AliMUONSegmentation (see comments there)
26 to allow development of slat-muon chamber simulation and reconstruction code in the MUON
27 framework. The changes should have no side effects (mostly dummy arguments).
28 (2) Hit disintegration uses 3-dim hit coordinates to allow simulation
29 of chambers with overlapping modules (MakePadHits, Disintegration).
31 Revision 1.4 2000/06/26 14:02:38 morsch
32 Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
34 Revision 1.3 2000/06/22 14:10:05 morsch
35 HP scope problems corrected (PH)
37 Revision 1.2 2000/06/15 07:58:49 morsch
38 Code from MUON-dev joined
40 Revision 1.1.2.14 2000/06/14 14:37:25 morsch
41 Initialization of TriggerCircuit added (PC)
43 Revision 1.1.2.13 2000/06/09 21:55:47 morsch
44 Most coding rule violations corrected.
46 Revision 1.1.2.12 2000/05/05 11:34:29 morsch
49 Revision 1.1.2.11 2000/05/05 10:06:48 morsch
50 Coding Rule violations regarding trigger section corrected (CP)
51 Log messages included.
54 /////////////////////////////////////////////////////////
55 // Manager and hits classes for set:MUON version 0 //
56 /////////////////////////////////////////////////////////
61 #include <TLorentzVector.h>
64 #include "AliMUONv1.h"
68 #include "AliCallf77.h"
70 #include "AliMUONChamber.h"
71 #include "AliMUONHit.h"
72 #include "AliMUONPadHit.h"
73 #include "AliMUONConstants.h"
74 #include "AliMUONTriggerCircuit.h"
78 //___________________________________________
79 AliMUONv1::AliMUONv1() : AliMUON()
85 //___________________________________________
86 AliMUONv1::AliMUONv1(const char *name, const char *title)
92 //___________________________________________
93 void AliMUONv1::CreateGeometry()
96 // Note: all chambers have the same structure, which could be
97 // easily parameterised. This was intentionally not done in order
98 // to give a starting point for the implementation of the actual
99 // design of each station.
100 Int_t *idtmed = fIdtmed->GetArray()-1099;
102 // Distance between Stations
107 Float_t zpos1, zpos2, zfpos;
108 Float_t dframep=.001; // Value for station 3 should be 6 ...
109 Float_t dframep1=.001;
110 // Bool_t frames=kTRUE;
111 Bool_t frames=kFALSE;
118 // Rotation matrices in the x-y plane
121 AliMatrix(idrotm[1100], 90., 0., 90., 90., 0., 0.);
123 AliMatrix(idrotm[1101], 90., 90., 90., 180., 0., 0.);
125 AliMatrix(idrotm[1102], 90., 180., 90., 270., 0., 0.);
127 AliMatrix(idrotm[1103], 90., 270., 90., 0., 0., 0.);
129 Float_t phi=2*TMath::Pi()/12/2;
132 // pointer to the current chamber
133 // pointer to the current chamber
134 Int_t idAlu1=idtmed[1103];
135 Int_t idAlu2=idtmed[1104];
136 // Int_t idAlu1=idtmed[1100];
137 // Int_t idAlu2=idtmed[1100];
138 Int_t idAir=idtmed[1100];
139 Int_t idGas=idtmed[1105];
142 AliMUONChamber *iChamber, *iChamber1, *iChamber2;
143 //********************************************************************
145 //********************************************************************
147 // indices 1 and 2 for first and second chambers in the station
148 // iChamber (first chamber) kept for other quanties than Z,
149 // assumed to be the same in both chambers
150 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[0];
151 iChamber2 =(AliMUONChamber*) (*fChambers)[1];
152 zpos1=iChamber1->Z();
153 zpos2=iChamber2->Z();
154 dstation = zpos2 - zpos1;
155 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
159 tpar[0] = iChamber->RInner()-dframep1;
160 tpar[1] = (iChamber->ROuter()+dframep1)/TMath::Cos(phi);
161 tpar[2] = dstation/4;
163 gMC->Gsvolu("C01M", "TUBE", idAir, tpar, 3);
164 gMC->Gsvolu("C02M", "TUBE", idAir, tpar, 3);
165 gMC->Gspos("C01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
166 gMC->Gspos("C02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
173 pgpar[4] = -dframez/2;
174 pgpar[5] = iChamber->ROuter();
175 pgpar[6] = pgpar[5]+dframep1;
176 pgpar[7] = +dframez/2;
179 gMC->Gsvolu("C01O", "PGON", idAlu1, pgpar, 10);
180 gMC->Gsvolu("C02O", "PGON", idAlu1, pgpar, 10);
181 gMC->Gspos("C01O",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
182 gMC->Gspos("C01O",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
183 gMC->Gspos("C02O",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
184 gMC->Gspos("C02O",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
187 tpar[0]= iChamber->RInner()-dframep1;
188 tpar[1]= iChamber->RInner();
190 gMC->Gsvolu("C01I", "TUBE", idAlu1, tpar, 3);
191 gMC->Gsvolu("C02I", "TUBE", idAlu1, tpar, 3);
193 gMC->Gspos("C01I",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
194 gMC->Gspos("C01I",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
195 gMC->Gspos("C02I",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
196 gMC->Gspos("C02I",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
201 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
202 bpar[1] = dframep1/2;
204 gMC->Gsvolu("C01B", "BOX", idAlu1, bpar, 3);
205 gMC->Gsvolu("C02B", "BOX", idAlu1, bpar, 3);
207 gMC->Gspos("C01B",1,"C01M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
208 idrotm[1100],"ONLY");
209 gMC->Gspos("C01B",2,"C01M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
210 idrotm[1100],"ONLY");
211 gMC->Gspos("C01B",3,"C01M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
212 idrotm[1101],"ONLY");
213 gMC->Gspos("C01B",4,"C01M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
214 idrotm[1101],"ONLY");
215 gMC->Gspos("C01B",5,"C01M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
216 idrotm[1100],"ONLY");
217 gMC->Gspos("C01B",6,"C01M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
218 idrotm[1100],"ONLY");
219 gMC->Gspos("C01B",7,"C01M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
220 idrotm[1101],"ONLY");
221 gMC->Gspos("C01B",8,"C01M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
222 idrotm[1101],"ONLY");
224 gMC->Gspos("C02B",1,"C02M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
225 idrotm[1100],"ONLY");
226 gMC->Gspos("C02B",2,"C02M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
227 idrotm[1100],"ONLY");
228 gMC->Gspos("C02B",3,"C02M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
229 idrotm[1101],"ONLY");
230 gMC->Gspos("C02B",4,"C02M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
231 idrotm[1101],"ONLY");
232 gMC->Gspos("C02B",5,"C02M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
233 idrotm[1100],"ONLY");
234 gMC->Gspos("C02B",6,"C02M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
235 idrotm[1100],"ONLY");
236 gMC->Gspos("C02B",7,"C02M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
237 idrotm[1101],"ONLY");
238 gMC->Gspos("C02B",8,"C02M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
239 idrotm[1101],"ONLY");
242 // Chamber Material represented by Alu sheet
243 tpar[0]= iChamber->RInner();
244 tpar[1]= iChamber->ROuter();
245 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
246 gMC->Gsvolu("C01A", "TUBE", idAlu2, tpar, 3);
247 gMC->Gsvolu("C02A", "TUBE",idAlu2, tpar, 3);
248 gMC->Gspos("C01A", 1, "C01M", 0., 0., 0., 0, "ONLY");
249 gMC->Gspos("C02A", 1, "C02M", 0., 0., 0., 0, "ONLY");
252 // tpar[2] = iChamber->DGas();
253 tpar[2] = iChamber->DGas()/2;
254 gMC->Gsvolu("C01G", "TUBE", idtmed[1108], tpar, 3);
255 gMC->Gsvolu("C02G", "TUBE", idtmed[1108], tpar, 3);
256 gMC->Gspos("C01G", 1, "C01A", 0., 0., 0., 0, "ONLY");
257 gMC->Gspos("C02G", 1, "C02A", 0., 0., 0., 0, "ONLY");
259 // Frame Crosses to be placed inside gas
262 dr = (iChamber->ROuter() - iChamber->RInner());
263 bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
264 bpar[1] = dframep1/2;
265 bpar[2] = iChamber->DGas()/2;
266 gMC->Gsvolu("C01F", "BOX", idAlu1, bpar, 3);
267 gMC->Gsvolu("C02F", "BOX", idAlu1, bpar, 3);
269 gMC->Gspos("C01F",1,"C01G", +iChamber->RInner()+bpar[0] , 0, 0,
270 idrotm[1100],"ONLY");
271 gMC->Gspos("C01F",2,"C01G", -iChamber->RInner()-bpar[0] , 0, 0,
272 idrotm[1100],"ONLY");
273 gMC->Gspos("C01F",3,"C01G", 0, +iChamber->RInner()+bpar[0] , 0,
274 idrotm[1101],"ONLY");
275 gMC->Gspos("C01F",4,"C01G", 0, -iChamber->RInner()-bpar[0] , 0,
276 idrotm[1101],"ONLY");
278 gMC->Gspos("C02F",1,"C02G", +iChamber->RInner()+bpar[0] , 0, 0,
279 idrotm[1100],"ONLY");
280 gMC->Gspos("C02F",2,"C02G", -iChamber->RInner()-bpar[0] , 0, 0,
281 idrotm[1100],"ONLY");
282 gMC->Gspos("C02F",3,"C02G", 0, +iChamber->RInner()+bpar[0] , 0,
283 idrotm[1101],"ONLY");
284 gMC->Gspos("C02F",4,"C02G", 0, -iChamber->RInner()-bpar[0] , 0,
285 idrotm[1101],"ONLY");
290 //********************************************************************
292 //********************************************************************
293 // indices 1 and 2 for first and second chambers in the station
294 // iChamber (first chamber) kept for other quanties than Z,
295 // assumed to be the same in both chambers
296 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[2];
297 iChamber2 =(AliMUONChamber*) (*fChambers)[3];
298 zpos1=iChamber1->Z();
299 zpos2=iChamber2->Z();
300 dstation = zpos2 - zpos1;
301 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
305 tpar[0] = iChamber->RInner()-dframep;
306 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
307 tpar[2] = dstation/4;
309 gMC->Gsvolu("C03M", "TUBE", idAir, tpar, 3);
310 gMC->Gsvolu("C04M", "TUBE", idAir, tpar, 3);
311 gMC->Gspos("C03M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
312 gMC->Gspos("C04M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
319 pgpar[4] = -dframez/2;
320 pgpar[5] = iChamber->ROuter();
321 pgpar[6] = pgpar[5]+dframep;
322 pgpar[7] = +dframez/2;
325 gMC->Gsvolu("C03O", "PGON", idAlu1, pgpar, 10);
326 gMC->Gsvolu("C04O", "PGON", idAlu1, pgpar, 10);
327 gMC->Gspos("C03O",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
328 gMC->Gspos("C03O",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
329 gMC->Gspos("C04O",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
330 gMC->Gspos("C04O",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
333 tpar[0]= iChamber->RInner()-dframep;
334 tpar[1]= iChamber->RInner();
336 gMC->Gsvolu("C03I", "TUBE", idAlu1, tpar, 3);
337 gMC->Gsvolu("C04I", "TUBE", idAlu1, tpar, 3);
339 gMC->Gspos("C03I",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
340 gMC->Gspos("C03I",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
341 gMC->Gspos("C04I",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
342 gMC->Gspos("C04I",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
347 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
350 gMC->Gsvolu("C03B", "BOX", idAlu1, bpar, 3);
351 gMC->Gsvolu("C04B", "BOX", idAlu1, bpar, 3);
353 gMC->Gspos("C03B",1,"C03M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
354 idrotm[1100],"ONLY");
355 gMC->Gspos("C03B",2,"C03M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
356 idrotm[1100],"ONLY");
357 gMC->Gspos("C03B",3,"C03M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
358 idrotm[1101],"ONLY");
359 gMC->Gspos("C03B",4,"C03M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
360 idrotm[1101],"ONLY");
361 gMC->Gspos("C03B",5,"C03M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
362 idrotm[1100],"ONLY");
363 gMC->Gspos("C03B",6,"C03M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
364 idrotm[1100],"ONLY");
365 gMC->Gspos("C03B",7,"C03M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
366 idrotm[1101],"ONLY");
367 gMC->Gspos("C03B",8,"C03M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
368 idrotm[1101],"ONLY");
370 gMC->Gspos("C04B",1,"C04M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
371 idrotm[1100],"ONLY");
372 gMC->Gspos("C04B",2,"C04M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
373 idrotm[1100],"ONLY");
374 gMC->Gspos("C04B",3,"C04M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
375 idrotm[1101],"ONLY");
376 gMC->Gspos("C04B",4,"C04M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
377 idrotm[1101],"ONLY");
378 gMC->Gspos("C04B",5,"C04M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
379 idrotm[1100],"ONLY");
380 gMC->Gspos("C04B",6,"C04M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
381 idrotm[1100],"ONLY");
382 gMC->Gspos("C04B",7,"C04M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
383 idrotm[1101],"ONLY");
384 gMC->Gspos("C04B",8,"C04M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
385 idrotm[1101],"ONLY");
388 // Chamber Material represented by Alu sheet
389 tpar[0]= iChamber->RInner();
390 tpar[1]= iChamber->ROuter();
391 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
392 gMC->Gsvolu("C03A", "TUBE", idAlu2, tpar, 3);
393 gMC->Gsvolu("C04A", "TUBE", idAlu2, tpar, 3);
394 gMC->Gspos("C03A", 1, "C03M", 0., 0., 0., 0, "ONLY");
395 gMC->Gspos("C04A", 1, "C04M", 0., 0., 0., 0, "ONLY");
398 // tpar[2] = iChamber->DGas();
399 tpar[2] = iChamber->DGas()/2;
400 gMC->Gsvolu("C03G", "TUBE", idGas, tpar, 3);
401 gMC->Gsvolu("C04G", "TUBE", idGas, tpar, 3);
402 gMC->Gspos("C03G", 1, "C03A", 0., 0., 0., 0, "ONLY");
403 gMC->Gspos("C04G", 1, "C04A", 0., 0., 0., 0, "ONLY");
407 // Frame Crosses to be placed inside gas
408 dr = (iChamber->ROuter() - iChamber->RInner());
409 bpar[0] = TMath::Sqrt(dr*dr-dframep*dframep/4)/2;
411 bpar[2] = iChamber->DGas()/2;
412 gMC->Gsvolu("C03F", "BOX", idAlu1, bpar, 3);
413 gMC->Gsvolu("C04F", "BOX", idAlu1, bpar, 3);
415 gMC->Gspos("C03F",1,"C03G", +iChamber->RInner()+bpar[0] , 0, 0,
416 idrotm[1100],"ONLY");
417 gMC->Gspos("C03F",2,"C03G", -iChamber->RInner()-bpar[0] , 0, 0,
418 idrotm[1100],"ONLY");
419 gMC->Gspos("C03F",3,"C03G", 0, +iChamber->RInner()+bpar[0] , 0,
420 idrotm[1101],"ONLY");
421 gMC->Gspos("C03F",4,"C03G", 0, -iChamber->RInner()-bpar[0] , 0,
422 idrotm[1101],"ONLY");
424 gMC->Gspos("C04F",1,"C04G", +iChamber->RInner()+bpar[0] , 0, 0,
425 idrotm[1100],"ONLY");
426 gMC->Gspos("C04F",2,"C04G", -iChamber->RInner()-bpar[0] , 0, 0,
427 idrotm[1100],"ONLY");
428 gMC->Gspos("C04F",3,"C04G", 0, +iChamber->RInner()+bpar[0] , 0,
429 idrotm[1101],"ONLY");
430 gMC->Gspos("C04F",4,"C04G", 0, -iChamber->RInner()-bpar[0] , 0,
431 idrotm[1101],"ONLY");
434 //********************************************************************
436 //********************************************************************
437 // indices 1 and 2 for first and second chambers in the station
438 // iChamber (first chamber) kept for other quanties than Z,
439 // assumed to be the same in both chambers
440 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[4];
441 iChamber2 =(AliMUONChamber*) (*fChambers)[5];
442 zpos1=iChamber1->Z();
443 zpos2=iChamber2->Z();
444 dstation = zpos2 - zpos1;
446 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
449 tpar[0] = iChamber->RInner()-dframep;
450 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
451 tpar[2] = dstation/4;
452 gMC->Gsvolu("C05M", "TUBE", idAir, tpar, 3);
453 gMC->Gsvolu("C06M", "TUBE", idAir, tpar, 3);
454 gMC->Gspos("C05M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
455 gMC->Gspos("C06M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
462 pgpar[4] = -dframez/2;
463 pgpar[5] = iChamber->ROuter();
464 pgpar[6] = pgpar[5]+dframep;
465 pgpar[7] = +dframez/2;
468 gMC->Gsvolu("C05O", "PGON", idAlu1, pgpar, 10);
469 gMC->Gsvolu("C06O", "PGON", idAlu1, pgpar, 10);
470 gMC->Gspos("C05O",1,"C05M", 0.,0.,-zfpos, 0,"ONLY");
471 gMC->Gspos("C05O",2,"C05M", 0.,0.,+zfpos, 0,"ONLY");
472 gMC->Gspos("C06O",1,"C06M", 0.,0.,-zfpos, 0,"ONLY");
473 gMC->Gspos("C06O",2,"C06M", 0.,0.,+zfpos, 0,"ONLY");
476 tpar[0]= iChamber->RInner()-dframep;
477 tpar[1]= iChamber->RInner();
479 gMC->Gsvolu("C05I", "TUBE", idAlu1, tpar, 3);
480 gMC->Gsvolu("C06I", "TUBE", idAlu1, tpar, 3);
482 gMC->Gspos("C05I",1,"C05M", 0.,0.,-zfpos, 0,"ONLY");
483 gMC->Gspos("C05I",2,"C05M", 0.,0.,+zfpos, 0,"ONLY");
484 gMC->Gspos("C06I",1,"C06M", 0.,0.,-zfpos, 0,"ONLY");
485 gMC->Gspos("C06I",2,"C06M", 0.,0.,+zfpos, 0,"ONLY");
489 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
492 gMC->Gsvolu("C05B", "BOX", idAlu1, bpar, 3);
493 gMC->Gsvolu("C06B", "BOX", idAlu1, bpar, 3);
495 gMC->Gspos("C05B",1,"C05M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
496 idrotm[1100],"ONLY");
497 gMC->Gspos("C05B",2,"C05M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
498 idrotm[1100],"ONLY");
499 gMC->Gspos("C05B",3,"C05M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
500 idrotm[1101],"ONLY");
501 gMC->Gspos("C05B",4,"C05M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
502 idrotm[1101],"ONLY");
503 gMC->Gspos("C05B",5,"C05M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
504 idrotm[1100],"ONLY");
505 gMC->Gspos("C05B",6,"C05M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
506 idrotm[1100],"ONLY");
507 gMC->Gspos("C05B",7,"C05M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
508 idrotm[1101],"ONLY");
509 gMC->Gspos("C05B",8,"C05M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
510 idrotm[1101],"ONLY");
512 gMC->Gspos("C06B",1,"C06M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
513 idrotm[1100],"ONLY");
514 gMC->Gspos("C06B",2,"C06M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
515 idrotm[1100],"ONLY");
516 gMC->Gspos("C06B",3,"C06M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
517 idrotm[1101],"ONLY");
518 gMC->Gspos("C06B",4,"C06M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
519 idrotm[1101],"ONLY");
520 gMC->Gspos("C06B",5,"C06M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
521 idrotm[1100],"ONLY");
522 gMC->Gspos("C06B",6,"C06M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
523 idrotm[1100],"ONLY");
524 gMC->Gspos("C06B",7,"C06M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
525 idrotm[1101],"ONLY");
526 gMC->Gspos("C06B",8,"C06M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
527 idrotm[1101],"ONLY");
532 // Chamber Material represented by Alu sheet
533 tpar[0]= iChamber->RInner();
534 tpar[1]= iChamber->ROuter();
535 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
536 gMC->Gsvolu("C05A", "TUBE", idAlu2, tpar, 3);
537 gMC->Gsvolu("C06A", "TUBE", idAlu2, tpar, 3);
538 gMC->Gspos("C05A", 1, "C05M", 0., 0., 0., 0, "ONLY");
539 gMC->Gspos("C06A", 1, "C06M", 0., 0., 0., 0, "ONLY");
542 tpar[2] = iChamber->DGas()/2.;
543 gMC->Gsvolu("C05G", "TUBE", idGas, tpar, 3);
544 gMC->Gsvolu("C06G", "TUBE", idGas, tpar, 3);
545 gMC->Gspos("C05G", 1, "C05A", 0., 0., 0., 0, "ONLY");
546 gMC->Gspos("C06G", 1, "C06A", 0., 0., 0., 0, "ONLY");
548 // Frame Crosses to be placed inside gas
550 dr = (iChamber->ROuter() - iChamber->RInner());
551 bpar[0] = TMath::Sqrt(dr*dr-dframep*dframep/4)/2;
553 bpar[2] = iChamber->DGas()/2;
554 gMC->Gsvolu("C05F", "BOX", idAlu1, bpar, 3);
555 gMC->Gsvolu("C06F", "BOX", idAlu1, bpar, 3);
557 gMC->Gspos("C05F",1,"C05G", +iChamber->RInner()+bpar[0] , 0, 0,
558 idrotm[1100],"ONLY");
559 gMC->Gspos("C05F",2,"C05G", -iChamber->RInner()-bpar[0] , 0, 0,
560 idrotm[1100],"ONLY");
561 gMC->Gspos("C05F",3,"C05G", 0, +iChamber->RInner()+bpar[0] , 0,
562 idrotm[1101],"ONLY");
563 gMC->Gspos("C05F",4,"C05G", 0, -iChamber->RInner()-bpar[0] , 0,
564 idrotm[1101],"ONLY");
566 gMC->Gspos("C06F",1,"C06G", +iChamber->RInner()+bpar[0] , 0, 0,
567 idrotm[1100],"ONLY");
568 gMC->Gspos("C06F",2,"C06G", -iChamber->RInner()-bpar[0] , 0, 0,
569 idrotm[1100],"ONLY");
570 gMC->Gspos("C06F",3,"C06G", 0, +iChamber->RInner()+bpar[0] , 0,
571 idrotm[1101],"ONLY");
572 gMC->Gspos("C06F",4,"C06G", 0, -iChamber->RInner()-bpar[0] , 0,
573 idrotm[1101],"ONLY");
576 //********************************************************************
578 //********************************************************************
579 // indices 1 and 2 for first and second chambers in the station
580 // iChamber (first chamber) kept for other quanties than Z,
581 // assumed to be the same in both chambers
582 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[6];
583 iChamber2 =(AliMUONChamber*) (*fChambers)[7];
584 zpos1=iChamber1->Z();
585 zpos2=iChamber2->Z();
586 dstation = zpos2 - zpos1;
587 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
591 tpar[0] = iChamber->RInner()-dframep;
592 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
593 tpar[2] = dstation/4;
595 gMC->Gsvolu("C07M", "TUBE", idAir, tpar, 3);
596 gMC->Gsvolu("C08M", "TUBE", idAir, tpar, 3);
597 gMC->Gspos("C07M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
598 gMC->Gspos("C08M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
605 pgpar[4] = -dframez/2;
606 pgpar[5] = iChamber->ROuter();
607 pgpar[6] = pgpar[5]+dframep;
608 pgpar[7] = +dframez/2;
611 gMC->Gsvolu("C07O", "PGON", idAlu1, pgpar, 10);
612 gMC->Gsvolu("C08O", "PGON", idAlu1, pgpar, 10);
613 gMC->Gspos("C07O",1,"C07M", 0.,0.,-zfpos, 0,"ONLY");
614 gMC->Gspos("C07O",2,"C07M", 0.,0.,+zfpos, 0,"ONLY");
615 gMC->Gspos("C08O",1,"C08M", 0.,0.,-zfpos, 0,"ONLY");
616 gMC->Gspos("C08O",2,"C08M", 0.,0.,+zfpos, 0,"ONLY");
619 tpar[0]= iChamber->RInner()-dframep;
620 tpar[1]= iChamber->RInner();
622 gMC->Gsvolu("C07I", "TUBE", idAlu1, tpar, 3);
623 gMC->Gsvolu("C08I", "TUBE", idAlu1, tpar, 3);
625 gMC->Gspos("C07I",1,"C07M", 0.,0.,-zfpos, 0,"ONLY");
626 gMC->Gspos("C07I",2,"C07M", 0.,0.,+zfpos, 0,"ONLY");
627 gMC->Gspos("C08I",1,"C08M", 0.,0.,-zfpos, 0,"ONLY");
628 gMC->Gspos("C08I",2,"C08M", 0.,0.,+zfpos, 0,"ONLY");
632 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
635 gMC->Gsvolu("C07B", "BOX", idAlu1, bpar, 3);
636 gMC->Gsvolu("C08B", "BOX", idAlu1, bpar, 3);
638 gMC->Gspos("C07B",1,"C07M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
639 idrotm[1100],"ONLY");
640 gMC->Gspos("C07B",2,"C07M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
641 idrotm[1100],"ONLY");
642 gMC->Gspos("C07B",3,"C07M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
643 idrotm[1101],"ONLY");
644 gMC->Gspos("C07B",4,"C07M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
645 idrotm[1101],"ONLY");
646 gMC->Gspos("C07B",5,"C07M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
647 idrotm[1100],"ONLY");
648 gMC->Gspos("C07B",6,"C07M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
649 idrotm[1100],"ONLY");
650 gMC->Gspos("C07B",7,"C07M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
651 idrotm[1101],"ONLY");
652 gMC->Gspos("C07B",8,"C07M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
653 idrotm[1101],"ONLY");
655 gMC->Gspos("C08B",1,"C08M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
656 idrotm[1100],"ONLY");
657 gMC->Gspos("C08B",2,"C08M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
658 idrotm[1100],"ONLY");
659 gMC->Gspos("C08B",3,"C08M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
660 idrotm[1101],"ONLY");
661 gMC->Gspos("C08B",4,"C08M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
662 idrotm[1101],"ONLY");
663 gMC->Gspos("C08B",5,"C08M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
664 idrotm[1100],"ONLY");
665 gMC->Gspos("C08B",6,"C08M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
666 idrotm[1100],"ONLY");
667 gMC->Gspos("C08B",7,"C08M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
668 idrotm[1101],"ONLY");
669 gMC->Gspos("C08B",8,"C08M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
670 idrotm[1101],"ONLY");
675 // Chamber Material represented by Alu sheet
676 tpar[0]= iChamber->RInner();
677 tpar[1]= iChamber->ROuter();
678 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
679 gMC->Gsvolu("C07A", "TUBE", idAlu2, tpar, 3);
680 gMC->Gsvolu("C08A", "TUBE", idAlu2, tpar, 3);
681 gMC->Gspos("C07A", 1, "C07M", 0., 0., 0., 0, "ONLY");
682 gMC->Gspos("C08A", 1, "C08M", 0., 0., 0., 0, "ONLY");
685 // tpar[2] = iChamber->DGas();
686 tpar[2] = iChamber->DGas()/2;
687 gMC->Gsvolu("C07G", "TUBE", idGas, tpar, 3);
688 gMC->Gsvolu("C08G", "TUBE", idGas, tpar, 3);
689 gMC->Gspos("C07G", 1, "C07A", 0., 0., 0., 0, "ONLY");
690 gMC->Gspos("C08G", 1, "C08A", 0., 0., 0., 0, "ONLY");
692 // Frame Crosses to be placed inside gas
694 dr = (iChamber->ROuter() - iChamber->RInner());
695 bpar[0] = TMath::Sqrt(dr*dr-dframep*dframep/4)/2;
697 bpar[2] = iChamber->DGas()/2;
698 gMC->Gsvolu("C07F", "BOX", idAlu1, bpar, 3);
699 gMC->Gsvolu("C08F", "BOX", idAlu1, bpar, 3);
701 gMC->Gspos("C07F",1,"C07G", +iChamber->RInner()+bpar[0] , 0, 0,
702 idrotm[1100],"ONLY");
703 gMC->Gspos("C07F",2,"C07G", -iChamber->RInner()-bpar[0] , 0, 0,
704 idrotm[1100],"ONLY");
705 gMC->Gspos("C07F",3,"C07G", 0, +iChamber->RInner()+bpar[0] , 0,
706 idrotm[1101],"ONLY");
707 gMC->Gspos("C07F",4,"C07G", 0, -iChamber->RInner()-bpar[0] , 0,
708 idrotm[1101],"ONLY");
710 gMC->Gspos("C08F",1,"C08G", +iChamber->RInner()+bpar[0] , 0, 0,
711 idrotm[1100],"ONLY");
712 gMC->Gspos("C08F",2,"C08G", -iChamber->RInner()-bpar[0] , 0, 0,
713 idrotm[1100],"ONLY");
714 gMC->Gspos("C08F",3,"C08G", 0, +iChamber->RInner()+bpar[0] , 0,
715 idrotm[1101],"ONLY");
716 gMC->Gspos("C08F",4,"C08G", 0, -iChamber->RInner()-bpar[0] , 0,
717 idrotm[1101],"ONLY");
719 //********************************************************************
721 //********************************************************************
722 // indices 1 and 2 for first and second chambers in the station
723 // iChamber (first chamber) kept for other quanties than Z,
724 // assumed to be the same in both chambers
725 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[8];
726 iChamber2 =(AliMUONChamber*) (*fChambers)[9];
727 zpos1=iChamber1->Z();
728 zpos2=iChamber2->Z();
729 dstation = zpos2 - zpos1;
730 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
734 tpar[0] = iChamber->RInner()-dframep;
735 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
736 tpar[2] = dstation/4;
738 gMC->Gsvolu("C09M", "TUBE", idAir, tpar, 3);
739 gMC->Gsvolu("C10M", "TUBE", idAir, tpar, 3);
740 gMC->Gspos("C09M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
741 gMC->Gspos("C10M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
748 pgpar[4] = -dframez/2;
749 pgpar[5] = iChamber->ROuter();
750 pgpar[6] = pgpar[5]+dframep;
751 pgpar[7] = +dframez/2;
754 gMC->Gsvolu("C09O", "PGON", idAlu1, pgpar, 10);
755 gMC->Gsvolu("C10O", "PGON", idAlu1, pgpar, 10);
756 gMC->Gspos("C09O",1,"C09M", 0.,0.,-zfpos, 0,"ONLY");
757 gMC->Gspos("C09O",2,"C09M", 0.,0.,+zfpos, 0,"ONLY");
758 gMC->Gspos("C10O",1,"C10M", 0.,0.,-zfpos, 0,"ONLY");
759 gMC->Gspos("C10O",2,"C10M", 0.,0.,+zfpos, 0,"ONLY");
762 tpar[0]= iChamber->RInner()-dframep;
763 tpar[1]= iChamber->RInner();
765 gMC->Gsvolu("C09I", "TUBE", idAlu1, tpar, 3);
766 gMC->Gsvolu("C10I", "TUBE", idAlu1, tpar, 3);
768 gMC->Gspos("C09I",1,"C09M", 0.,0.,-zfpos, 0,"ONLY");
769 gMC->Gspos("C09I",2,"C09M", 0.,0.,+zfpos, 0,"ONLY");
770 gMC->Gspos("C10I",1,"C10M", 0.,0.,-zfpos, 0,"ONLY");
771 gMC->Gspos("C10I",2,"C10M", 0.,0.,+zfpos, 0,"ONLY");
777 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
780 gMC->Gsvolu("C09B", "BOX", idAlu1, bpar, 3);
781 gMC->Gsvolu("C10B", "BOX", idAlu1, bpar, 3);
783 gMC->Gspos("C09B",1,"C09M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
784 idrotm[1100],"ONLY");
785 gMC->Gspos("C09B",2,"C09M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
786 idrotm[1100],"ONLY");
787 gMC->Gspos("C09B",3,"C09M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
788 idrotm[1101],"ONLY");
789 gMC->Gspos("C09B",4,"C09M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
790 idrotm[1101],"ONLY");
791 gMC->Gspos("C09B",5,"C09M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
792 idrotm[1100],"ONLY");
793 gMC->Gspos("C09B",6,"C09M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
794 idrotm[1100],"ONLY");
795 gMC->Gspos("C09B",7,"C09M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
796 idrotm[1101],"ONLY");
797 gMC->Gspos("C09B",8,"C09M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
798 idrotm[1101],"ONLY");
800 gMC->Gspos("C10B",1,"C10M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
801 idrotm[1100],"ONLY");
802 gMC->Gspos("C10B",2,"C10M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
803 idrotm[1100],"ONLY");
804 gMC->Gspos("C10B",3,"C10M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
805 idrotm[1101],"ONLY");
806 gMC->Gspos("C10B",4,"C10M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
807 idrotm[1101],"ONLY");
808 gMC->Gspos("C10B",5,"C10M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
809 idrotm[1100],"ONLY");
810 gMC->Gspos("C10B",6,"C10M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
811 idrotm[1100],"ONLY");
812 gMC->Gspos("C10B",7,"C10M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
813 idrotm[1101],"ONLY");
814 gMC->Gspos("C10B",8,"C10M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
815 idrotm[1101],"ONLY");
820 // Chamber Material represented by Alu sheet
821 tpar[0]= iChamber->RInner();
822 tpar[1]= iChamber->ROuter();
823 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
824 gMC->Gsvolu("C09A", "TUBE", idAlu2, tpar, 3);
825 gMC->Gsvolu("C10A", "TUBE", idAlu2, tpar, 3);
826 gMC->Gspos("C09A", 1, "C09M", 0., 0., 0., 0, "ONLY");
827 gMC->Gspos("C10A", 1, "C10M", 0., 0., 0., 0, "ONLY");
830 // tpar[2] = iChamber->DGas();
831 tpar[2] = iChamber->DGas()/2;
832 gMC->Gsvolu("C09G", "TUBE", idGas, tpar, 3);
833 gMC->Gsvolu("C10G", "TUBE", idGas, tpar, 3);
834 gMC->Gspos("C09G", 1, "C09A", 0., 0., 0., 0, "ONLY");
835 gMC->Gspos("C10G", 1, "C10A", 0., 0., 0., 0, "ONLY");
837 // Frame Crosses to be placed inside gas
839 dr = (iChamber->ROuter() - iChamber->RInner());
840 bpar[0] = TMath::Sqrt(dr*dr-dframep*dframep/4)/2;
842 bpar[2] = iChamber->DGas()/2;
843 gMC->Gsvolu("C09F", "BOX", idAlu1, bpar, 3);
844 gMC->Gsvolu("C10F", "BOX", idAlu1, bpar, 3);
846 gMC->Gspos("C09F",1,"C09G", +iChamber->RInner()+bpar[0] , 0, 0,
847 idrotm[1100],"ONLY");
848 gMC->Gspos("C09F",2,"C09G", -iChamber->RInner()-bpar[0] , 0, 0,
849 idrotm[1100],"ONLY");
850 gMC->Gspos("C09F",3,"C09G", 0, +iChamber->RInner()+bpar[0] , 0,
851 idrotm[1101],"ONLY");
852 gMC->Gspos("C09F",4,"C09G", 0, -iChamber->RInner()-bpar[0] , 0,
853 idrotm[1101],"ONLY");
855 gMC->Gspos("C10F",1,"C10G", +iChamber->RInner()+bpar[0] , 0, 0,
856 idrotm[1100],"ONLY");
857 gMC->Gspos("C10F",2,"C10G", -iChamber->RInner()-bpar[0] , 0, 0,
858 idrotm[1100],"ONLY");
859 gMC->Gspos("C10F",3,"C10G", 0, +iChamber->RInner()+bpar[0] , 0,
860 idrotm[1101],"ONLY");
861 gMC->Gspos("C10F",4,"C10G", 0, -iChamber->RInner()-bpar[0] , 0,
862 idrotm[1101],"ONLY");
865 ///////////////////////////////////////
866 // GEOMETRY FOR THE TRIGGER CHAMBERS //
867 ///////////////////////////////////////
869 // 03/00 P. Dupieux : introduce a slighly more realistic
870 // geom. of the trigger readout planes with
871 // 2 Zpos per trigger plane (alternate
872 // between left and right of the trigger)
874 // Parameters of the Trigger Chambers
877 const Float_t kXMC1MIN=34.;
878 const Float_t kXMC1MED=51.;
879 const Float_t kXMC1MAX=272.;
880 const Float_t kYMC1MIN=34.;
881 const Float_t kYMC1MAX=51.;
882 const Float_t kRMIN1=50.;
883 const Float_t kRMAX1=62.;
884 const Float_t kRMIN2=50.;
885 const Float_t kRMAX2=66.;
887 // zposition of the middle of the gas gap in mother vol
888 const Float_t kZMCm=-3.6;
889 const Float_t kZMCp=+3.6;
892 // TRIGGER STATION 1 - TRIGGER STATION 1 - TRIGGER STATION 1
894 // iChamber 1 and 2 for first and second chambers in the station
895 // iChamber (first chamber) kept for other quanties than Z,
896 // assumed to be the same in both chambers
897 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[10];
898 iChamber2 =(AliMUONChamber*) (*fChambers)[11];
901 // zpos1 and zpos2 are now the middle of the first and second
902 // plane of station 1 :
903 // zpos1=(16075+15995)/2=16035 mm, thick/2=40 mm
904 // zpos2=(16225+16145)/2=16185 mm, thick/2=40 mm
906 // zpos1m=15999 mm , zpos1p=16071 mm (middles of gas gaps)
907 // zpos2m=16149 mm , zpos2p=16221 mm (middles of gas gaps)
908 // rem : the total thickness accounts for 1 mm of al on both
909 // side of the RPCs (see zpos1 and zpos2), as previously
911 zpos1=iChamber1->Z();
912 zpos2=iChamber2->Z();
915 // Mother volume definition
916 tpar[0] = iChamber->RInner();
917 tpar[1] = iChamber->ROuter();
919 gMC->Gsvolu("CM11", "TUBE", idAir, tpar, 3);
920 gMC->Gsvolu("CM12", "TUBE", idAir, tpar, 3);
922 // Definition of the flange between the beam shielding and the RPC
927 gMC->Gsvolu("CF1A", "TUBE", idAlu1, tpar, 3); //Al
928 gMC->Gspos("CF1A", 1, "CM11", 0., 0., 0., 0, "MANY");
929 gMC->Gspos("CF1A", 2, "CM12", 0., 0., 0., 0, "MANY");
932 // FIRST PLANE OF STATION 1
934 // ratios of zpos1m/zpos1p and inverse for first plane
935 Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
939 // Definition of prototype for chambers in the first plane
945 gMC->Gsvolu("CC1A", "BOX ", idAlu1, tpar, 0); //Al
946 gMC->Gsvolu("CB1A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
947 gMC->Gsvolu("CG1A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
953 const Float_t kXMC1A=kXMC1MED+(kXMC1MAX-kXMC1MED)/2.;
954 const Float_t kYMC1Am=0.;
955 const Float_t kYMC1Ap=0.;
958 gMC->Gsposp("CG1A", 1, "CB1A", 0., 0., 0., 0, "ONLY",tpar,3);
960 gMC->Gsposp("CB1A", 1, "CC1A", 0., 0., 0., 0, "ONLY",tpar,3);
963 tpar[0] = (kXMC1MAX-kXMC1MED)/2.;
966 gMC->Gsposp("CC1A", 1, "CM11",kXMC1A,kYMC1Am,kZMCm, 0, "ONLY", tpar, 3);
967 gMC->Gsposp("CC1A", 2, "CM11",-kXMC1A,kYMC1Ap,kZMCp, 0, "ONLY", tpar, 3);
970 Float_t tpar1save=tpar[1];
971 Float_t y1msave=kYMC1Am;
972 Float_t y1psave=kYMC1Ap;
974 tpar[0] = (kXMC1MAX-kXMC1MIN)/2.;
975 tpar[1] = (kYMC1MAX-kYMC1MIN)/2.;
977 const Float_t kXMC1B=kXMC1MIN+tpar[0];
978 const Float_t kYMC1Bp=(y1msave+tpar1save)*zpm+tpar[1];
979 const Float_t kYMC1Bm=(y1psave+tpar1save)*zmp+tpar[1];
981 gMC->Gsposp("CC1A", 3, "CM11",kXMC1B,kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
982 gMC->Gsposp("CC1A", 4, "CM11",-kXMC1B,kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
983 gMC->Gsposp("CC1A", 5, "CM11",kXMC1B,-kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
984 gMC->Gsposp("CC1A", 6, "CM11",-kXMC1B,-kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
986 // chamber type C (end of type B !!)
991 tpar[0] = kXMC1MAX/2;
992 tpar[1] = kYMC1MAX/2;
994 const Float_t kXMC1C=tpar[0];
995 // warning : same Z than type B
996 const Float_t kYMC1Cp=(y1psave+tpar1save)*1.+tpar[1];
997 const Float_t kYMC1Cm=(y1msave+tpar1save)*1.+tpar[1];
999 gMC->Gsposp("CC1A", 7, "CM11",kXMC1C,kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1000 gMC->Gsposp("CC1A", 8, "CM11",-kXMC1C,kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1001 gMC->Gsposp("CC1A", 9, "CM11",kXMC1C,-kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1002 gMC->Gsposp("CC1A", 10, "CM11",-kXMC1C,-kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1004 // chamber type D, E and F (same size)
1009 tpar[0] = kXMC1MAX/2.;
1012 const Float_t kXMC1D=tpar[0];
1013 const Float_t kYMC1Dp=(y1msave+tpar1save)*zpm+tpar[1];
1014 const Float_t kYMC1Dm=(y1psave+tpar1save)*zmp+tpar[1];
1016 gMC->Gsposp("CC1A", 11, "CM11",kXMC1D,kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1017 gMC->Gsposp("CC1A", 12, "CM11",-kXMC1D,kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1018 gMC->Gsposp("CC1A", 13, "CM11",kXMC1D,-kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1019 gMC->Gsposp("CC1A", 14, "CM11",-kXMC1D,-kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1025 const Float_t kYMC1Ep=(y1msave+tpar1save)*zpm+tpar[1];
1026 const Float_t kYMC1Em=(y1psave+tpar1save)*zmp+tpar[1];
1028 gMC->Gsposp("CC1A", 15, "CM11",kXMC1D,kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1029 gMC->Gsposp("CC1A", 16, "CM11",-kXMC1D,kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1030 gMC->Gsposp("CC1A", 17, "CM11",kXMC1D,-kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1031 gMC->Gsposp("CC1A", 18, "CM11",-kXMC1D,-kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1036 const Float_t kYMC1Fp=(y1msave+tpar1save)*zpm+tpar[1];
1037 const Float_t kYMC1Fm=(y1psave+tpar1save)*zmp+tpar[1];
1039 gMC->Gsposp("CC1A", 19, "CM11",kXMC1D,kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1040 gMC->Gsposp("CC1A", 20, "CM11",-kXMC1D,kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1041 gMC->Gsposp("CC1A", 21, "CM11",kXMC1D,-kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1042 gMC->Gsposp("CC1A", 22, "CM11",-kXMC1D,-kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1044 // Positioning first plane in ALICE
1045 gMC->Gspos("CM11", 1, "ALIC", 0., 0., zpos1, 0, "ONLY");
1047 // End of geometry definition for the first plane of station 1
1051 // SECOND PLANE OF STATION 1 : proj ratio = zpos2/zpos1
1053 const Float_t kZ12=zpos2/zpos1;
1055 // Definition of prototype for chambers in the second plane of station 1
1061 gMC->Gsvolu("CC2A", "BOX ", idAlu1, tpar, 0); //Al
1062 gMC->Gsvolu("CB2A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1063 gMC->Gsvolu("CG2A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1069 const Float_t kXMC2A=kXMC1A*kZ12;
1070 const Float_t kYMC2Am=0.;
1071 const Float_t kYMC2Ap=0.;
1074 gMC->Gsposp("CG2A", 1, "CB2A", 0., 0., 0., 0, "ONLY",tpar,3);
1076 gMC->Gsposp("CB2A", 1, "CC2A", 0., 0., 0., 0, "ONLY",tpar,3);
1079 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ12;
1080 tpar[1] = kYMC1MIN*kZ12;
1082 gMC->Gsposp("CC2A", 1, "CM12",kXMC2A,kYMC2Am,kZMCm, 0, "ONLY", tpar, 3);
1083 gMC->Gsposp("CC2A", 2, "CM12",-kXMC2A,kYMC2Ap,kZMCp, 0, "ONLY", tpar, 3);
1088 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ12;
1089 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ12;
1091 const Float_t kXMC2B=kXMC1B*kZ12;
1092 const Float_t kYMC2Bp=kYMC1Bp*kZ12;
1093 const Float_t kYMC2Bm=kYMC1Bm*kZ12;
1094 gMC->Gsposp("CC2A", 3, "CM12",kXMC2B,kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1095 gMC->Gsposp("CC2A", 4, "CM12",-kXMC2B,kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1096 gMC->Gsposp("CC2A", 5, "CM12",kXMC2B,-kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1097 gMC->Gsposp("CC2A", 6, "CM12",-kXMC2B,-kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1100 // chamber type C (end of type B !!)
1102 tpar[0] = (kXMC1MAX/2)*kZ12;
1103 tpar[1] = (kYMC1MAX/2)*kZ12;
1105 const Float_t kXMC2C=kXMC1C*kZ12;
1106 const Float_t kYMC2Cp=kYMC1Cp*kZ12;
1107 const Float_t kYMC2Cm=kYMC1Cm*kZ12;
1108 gMC->Gsposp("CC2A", 7, "CM12",kXMC2C,kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1109 gMC->Gsposp("CC2A", 8, "CM12",-kXMC2C,kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1110 gMC->Gsposp("CC2A", 9, "CM12",kXMC2C,-kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1111 gMC->Gsposp("CC2A", 10, "CM12",-kXMC2C,-kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1113 // chamber type D, E and F (same size)
1115 tpar[0] = (kXMC1MAX/2.)*kZ12;
1116 tpar[1] = kYMC1MIN*kZ12;
1118 const Float_t kXMC2D=kXMC1D*kZ12;
1119 const Float_t kYMC2Dp=kYMC1Dp*kZ12;
1120 const Float_t kYMC2Dm=kYMC1Dm*kZ12;
1121 gMC->Gsposp("CC2A", 11, "CM12",kXMC2D,kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1122 gMC->Gsposp("CC2A", 12, "CM12",-kXMC2D,kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1123 gMC->Gsposp("CC2A", 13, "CM12",kXMC2D,-kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1124 gMC->Gsposp("CC2A", 14, "CM12",-kXMC2D,-kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1126 const Float_t kYMC2Ep=kYMC1Ep*kZ12;
1127 const Float_t kYMC2Em=kYMC1Em*kZ12;
1128 gMC->Gsposp("CC2A", 15, "CM12",kXMC2D,kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1129 gMC->Gsposp("CC2A", 16, "CM12",-kXMC2D,kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1130 gMC->Gsposp("CC2A", 17, "CM12",kXMC2D,-kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1131 gMC->Gsposp("CC2A", 18, "CM12",-kXMC2D,-kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1134 const Float_t kYMC2Fp=kYMC1Fp*kZ12;
1135 const Float_t kYMC2Fm=kYMC1Fm*kZ12;
1136 gMC->Gsposp("CC2A", 19, "CM12",kXMC2D,kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1137 gMC->Gsposp("CC2A", 20, "CM12",-kXMC2D,kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1138 gMC->Gsposp("CC2A", 21, "CM12",kXMC2D,-kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1139 gMC->Gsposp("CC2A", 22, "CM12",-kXMC2D,-kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1141 // Positioning second plane of station 1 in ALICE
1143 gMC->Gspos("CM12", 1, "ALIC", 0., 0., zpos2, 0, "ONLY");
1145 // End of geometry definition for the second plane of station 1
1149 // TRIGGER STATION 2 - TRIGGER STATION 2 - TRIGGER STATION 2
1152 // zpos3 and zpos4 are now the middle of the first and second
1153 // plane of station 2 :
1154 // zpos3=(17075+16995)/2=17035 mm, thick/2=40 mm
1155 // zpos4=(17225+17145)/2=17185 mm, thick/2=40 mm
1157 // zpos3m=16999 mm , zpos3p=17071 mm (middles of gas gaps)
1158 // zpos4m=17149 mm , zpos4p=17221 mm (middles of gas gaps)
1159 // rem : the total thickness accounts for 1 mm of al on both
1160 // side of the RPCs (see zpos3 and zpos4), as previously
1161 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[12];
1162 iChamber2 =(AliMUONChamber*) (*fChambers)[13];
1163 Float_t zpos3=iChamber1->Z();
1164 Float_t zpos4=iChamber2->Z();
1167 // Mother volume definition
1168 tpar[0] = iChamber->RInner();
1169 tpar[1] = iChamber->ROuter();
1172 gMC->Gsvolu("CM21", "TUBE", idAir, tpar, 3);
1173 gMC->Gsvolu("CM22", "TUBE", idAir, tpar, 3);
1175 // Definition of the flange between the beam shielding and the RPC
1176 // ???? interface shielding
1182 gMC->Gsvolu("CF2A", "TUBE", idAlu1, tpar, 3); //Al
1183 gMC->Gspos("CF2A", 1, "CM21", 0., 0., 0., 0, "MANY");
1184 gMC->Gspos("CF2A", 2, "CM22", 0., 0., 0., 0, "MANY");
1188 // FIRST PLANE OF STATION 2 : proj ratio = zpos3/zpos1
1190 const Float_t kZ13=zpos3/zpos1;
1192 // Definition of prototype for chambers in the first plane of station 2
1197 gMC->Gsvolu("CC3A", "BOX ", idAlu1, tpar, 0); //Al
1198 gMC->Gsvolu("CB3A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1199 gMC->Gsvolu("CG3A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1206 const Float_t kXMC3A=kXMC1A*kZ13;
1207 const Float_t kYMC3Am=0.;
1208 const Float_t kYMC3Ap=0.;
1211 gMC->Gsposp("CG3A", 1, "CB3A", 0., 0., 0., 0, "ONLY",tpar,3);
1213 gMC->Gsposp("CB3A", 1, "CC3A", 0., 0., 0., 0, "ONLY",tpar,3);
1216 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ13;
1217 tpar[1] = kYMC1MIN*kZ13;
1218 gMC->Gsposp("CC3A", 1, "CM21",kXMC3A,kYMC3Am,kZMCm, 0, "ONLY", tpar, 3);
1219 gMC->Gsposp("CC3A", 2, "CM21",-kXMC3A,kYMC3Ap,kZMCp, 0, "ONLY", tpar, 3);
1223 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ13;
1224 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ13;
1226 const Float_t kXMC3B=kXMC1B*kZ13;
1227 const Float_t kYMC3Bp=kYMC1Bp*kZ13;
1228 const Float_t kYMC3Bm=kYMC1Bm*kZ13;
1229 gMC->Gsposp("CC3A", 3, "CM21",kXMC3B,kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1230 gMC->Gsposp("CC3A", 4, "CM21",-kXMC3B,kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1231 gMC->Gsposp("CC3A", 5, "CM21",kXMC3B,-kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1232 gMC->Gsposp("CC3A", 6, "CM21",-kXMC3B,-kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1235 // chamber type C (end of type B !!)
1236 tpar[0] = (kXMC1MAX/2)*kZ13;
1237 tpar[1] = (kYMC1MAX/2)*kZ13;
1239 const Float_t kXMC3C=kXMC1C*kZ13;
1240 const Float_t kYMC3Cp=kYMC1Cp*kZ13;
1241 const Float_t kYMC3Cm=kYMC1Cm*kZ13;
1242 gMC->Gsposp("CC3A", 7, "CM21",kXMC3C,kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1243 gMC->Gsposp("CC3A", 8, "CM21",-kXMC3C,kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1244 gMC->Gsposp("CC3A", 9, "CM21",kXMC3C,-kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1245 gMC->Gsposp("CC3A", 10, "CM21",-kXMC3C,-kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1248 // chamber type D, E and F (same size)
1250 tpar[0] = (kXMC1MAX/2.)*kZ13;
1251 tpar[1] = kYMC1MIN*kZ13;
1253 const Float_t kXMC3D=kXMC1D*kZ13;
1254 const Float_t kYMC3Dp=kYMC1Dp*kZ13;
1255 const Float_t kYMC3Dm=kYMC1Dm*kZ13;
1256 gMC->Gsposp("CC3A", 11, "CM21",kXMC3D,kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1257 gMC->Gsposp("CC3A", 12, "CM21",-kXMC3D,kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1258 gMC->Gsposp("CC3A", 13, "CM21",kXMC3D,-kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1259 gMC->Gsposp("CC3A", 14, "CM21",-kXMC3D,-kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1261 const Float_t kYMC3Ep=kYMC1Ep*kZ13;
1262 const Float_t kYMC3Em=kYMC1Em*kZ13;
1263 gMC->Gsposp("CC3A", 15, "CM21",kXMC3D,kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1264 gMC->Gsposp("CC3A", 16, "CM21",-kXMC3D,kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1265 gMC->Gsposp("CC3A", 17, "CM21",kXMC3D,-kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1266 gMC->Gsposp("CC3A", 18, "CM21",-kXMC3D,-kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1268 const Float_t kYMC3Fp=kYMC1Fp*kZ13;
1269 const Float_t kYMC3Fm=kYMC1Fm*kZ13;
1270 gMC->Gsposp("CC3A", 19, "CM21",kXMC3D,kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1271 gMC->Gsposp("CC3A", 20, "CM21",-kXMC3D,kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1272 gMC->Gsposp("CC3A", 21, "CM21",kXMC3D,-kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1273 gMC->Gsposp("CC3A", 22, "CM21",-kXMC3D,-kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1276 // Positioning first plane of station 2 in ALICE
1278 gMC->Gspos("CM21", 1, "ALIC", 0., 0., zpos3, 0, "ONLY");
1280 // End of geometry definition for the first plane of station 2
1285 // SECOND PLANE OF STATION 2 : proj ratio = zpos4/zpos1
1287 const Float_t kZ14=zpos4/zpos1;
1289 // Definition of prototype for chambers in the second plane of station 2
1295 gMC->Gsvolu("CC4A", "BOX ", idAlu1, tpar, 0); //Al
1296 gMC->Gsvolu("CB4A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1297 gMC->Gsvolu("CG4A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1303 const Float_t kXMC4A=kXMC1A*kZ14;
1304 const Float_t kYMC4Am=0.;
1305 const Float_t kYMC4Ap=0.;
1308 gMC->Gsposp("CG4A", 1, "CB4A", 0., 0., 0., 0, "ONLY",tpar,3);
1310 gMC->Gsposp("CB4A", 1, "CC4A", 0., 0., 0., 0, "ONLY",tpar,3);
1313 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ14;
1314 tpar[1] = kYMC1MIN*kZ14;
1315 gMC->Gsposp("CC4A", 1, "CM22",kXMC4A,kYMC4Am,kZMCm, 0, "ONLY", tpar, 3);
1316 gMC->Gsposp("CC4A", 2, "CM22",-kXMC4A,kYMC4Ap,kZMCp, 0, "ONLY", tpar, 3);
1320 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ14;
1321 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ14;
1323 const Float_t kXMC4B=kXMC1B*kZ14;
1324 const Float_t kYMC4Bp=kYMC1Bp*kZ14;
1325 const Float_t kYMC4Bm=kYMC1Bm*kZ14;
1326 gMC->Gsposp("CC4A", 3, "CM22",kXMC4B,kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1327 gMC->Gsposp("CC4A", 4, "CM22",-kXMC4B,kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1328 gMC->Gsposp("CC4A", 5, "CM22",kXMC4B,-kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1329 gMC->Gsposp("CC4A", 6, "CM22",-kXMC4B,-kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1332 // chamber type C (end of type B !!)
1333 tpar[0] =(kXMC1MAX/2)*kZ14;
1334 tpar[1] = (kYMC1MAX/2)*kZ14;
1336 const Float_t kXMC4C=kXMC1C*kZ14;
1337 const Float_t kYMC4Cp=kYMC1Cp*kZ14;
1338 const Float_t kYMC4Cm=kYMC1Cm*kZ14;
1339 gMC->Gsposp("CC4A", 7, "CM22",kXMC4C,kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1340 gMC->Gsposp("CC4A", 8, "CM22",-kXMC4C,kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1341 gMC->Gsposp("CC4A", 9, "CM22",kXMC4C,-kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1342 gMC->Gsposp("CC4A", 10, "CM22",-kXMC4C,-kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1345 // chamber type D, E and F (same size)
1346 tpar[0] = (kXMC1MAX/2.)*kZ14;
1347 tpar[1] = kYMC1MIN*kZ14;
1349 const Float_t kXMC4D=kXMC1D*kZ14;
1350 const Float_t kYMC4Dp=kYMC1Dp*kZ14;
1351 const Float_t kYMC4Dm=kYMC1Dm*kZ14;
1352 gMC->Gsposp("CC4A", 11, "CM22",kXMC4D,kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1353 gMC->Gsposp("CC4A", 12, "CM22",-kXMC4D,kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1354 gMC->Gsposp("CC4A", 13, "CM22",kXMC4D,-kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1355 gMC->Gsposp("CC4A", 14, "CM22",-kXMC4D,-kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1357 const Float_t kYMC4Ep=kYMC1Ep*kZ14;
1358 const Float_t kYMC4Em=kYMC1Em*kZ14;
1359 gMC->Gsposp("CC4A", 15, "CM22",kXMC4D,kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1360 gMC->Gsposp("CC4A", 16, "CM22",-kXMC4D,kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1361 gMC->Gsposp("CC4A", 17, "CM22",kXMC4D,-kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1362 gMC->Gsposp("CC4A", 18, "CM22",-kXMC4D,-kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1364 const Float_t kYMC4Fp=kYMC1Fp*kZ14;
1365 const Float_t kYMC4Fm=kYMC1Fm*kZ14;
1366 gMC->Gsposp("CC4A", 19, "CM22",kXMC4D,kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1367 gMC->Gsposp("CC4A", 20, "CM22",-kXMC4D,kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1368 gMC->Gsposp("CC4A", 21, "CM22",kXMC4D,-kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1369 gMC->Gsposp("CC4A", 22, "CM22",-kXMC4D,-kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1372 // Positioning second plane of station 2 in ALICE
1374 gMC->Gspos("CM22", 1, "ALIC", 0., 0., zpos4, 0, "ONLY");
1376 // End of geometry definition for the second plane of station 2
1378 // End of trigger geometry definition
1384 //___________________________________________
1385 void AliMUONv1::CreateMaterials()
1387 // *** DEFINITION OF AVAILABLE MUON MATERIALS ***
1390 Float_t ag1[3] = { 39.95,12.01,16. };
1391 Float_t zg1[3] = { 18.,6.,8. };
1392 Float_t wg1[3] = { .8,.0667,.13333 };
1393 Float_t dg1 = .001821;
1395 // Ar-buthane-freon gas -- trigger chambers
1396 Float_t atr1[4] = { 39.95,12.01,1.01,19. };
1397 Float_t ztr1[4] = { 18.,6.,1.,9. };
1398 Float_t wtr1[4] = { .56,.1262857,.2857143,.028 };
1399 Float_t dtr1 = .002599;
1402 Float_t agas[3] = { 39.95,12.01,16. };
1403 Float_t zgas[3] = { 18.,6.,8. };
1404 Float_t wgas[3] = { .74,.086684,.173316 };
1405 Float_t dgas = .0018327;
1407 // Ar-Isobutane gas (80%+20%) -- tracking
1408 Float_t ag[3] = { 39.95,12.01,1.01 };
1409 Float_t zg[3] = { 18.,6.,1. };
1410 Float_t wg[3] = { .8,.057,.143 };
1411 Float_t dg = .0019596;
1413 // Ar-Isobutane-Forane-SF6 gas (49%+7%+40%+4%) -- trigger
1414 Float_t atrig[5] = { 39.95,12.01,1.01,19.,32.066 };
1415 Float_t ztrig[5] = { 18.,6.,1.,9.,16. };
1416 Float_t wtrig[5] = { .49,1.08,1.5,1.84,0.04 };
1417 Float_t dtrig = .0031463;
1421 Float_t abak[3] = {12.01 , 1.01 , 16.};
1422 Float_t zbak[3] = {6. , 1. , 8.};
1423 Float_t wbak[3] = {6. , 6. , 1.};
1426 Float_t epsil, stmin, deemax, tmaxfd, stemax;
1428 Int_t iSXFLD = gAlice->Field()->Integ();
1429 Float_t sXMGMX = gAlice->Field()->Max();
1431 // --- Define the various materials for GEANT ---
1432 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1433 AliMaterial(10, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1434 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
1435 AliMixture(19, "Bakelite$", abak, zbak, dbak, -3, wbak);
1436 AliMixture(20, "ArC4H10 GAS$", ag, zg, dg, 3, wg);
1437 AliMixture(21, "TRIG GAS$", atrig, ztrig, dtrig, -5, wtrig);
1438 AliMixture(22, "ArCO2 80%$", ag1, zg1, dg1, 3, wg1);
1439 AliMixture(23, "Ar-freon $", atr1, ztr1, dtr1, 4, wtr1);
1440 AliMixture(24, "ArCO2 GAS$", agas, zgas, dgas, 3, wgas);
1442 epsil = .001; // Tracking precision,
1443 stemax = -1.; // Maximum displacement for multiple scat
1444 tmaxfd = -20.; // Maximum angle due to field deflection
1445 deemax = -.3; // Maximum fractional energy loss, DLS
1449 AliMedium(1, "AIR_CH_US ", 15, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1453 AliMedium(4, "ALU_CH_US ", 9, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1454 fMaxDestepAlu, epsil, stmin);
1455 AliMedium(5, "ALU_CH_US ", 10, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1456 fMaxDestepAlu, epsil, stmin);
1460 AliMedium(6, "AR_CH_US ", 20, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1461 fMaxDestepGas, epsil, stmin);
1463 // Ar-Isobuthane-Forane-SF6 gas
1465 AliMedium(7, "GAS_CH_TRIGGER ", 21, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1467 AliMedium(8, "BAKE_CH_TRIGGER ", 19, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1468 fMaxDestepAlu, epsil, stmin);
1470 AliMedium(9, "ARG_CO2 ", 22, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1471 fMaxDestepAlu, epsil, stmin);
1474 //___________________________________________
1476 void AliMUONv1::Init()
1479 // Initialize Tracking Chambers
1482 printf("\n\n\n Start Init for version 1 - CPC chamber type\n\n\n");
1484 for (i=0; i<AliMUONConstants::NCh(); i++) {
1485 ( (AliMUONChamber*) (*fChambers)[i])->Init();
1489 // Set the chamber (sensitive region) GEANT identifier
1490 AliMC* gMC = AliMC::GetMC();
1491 ((AliMUONChamber*)(*fChambers)[0])->SetGid(gMC->VolId("C01G"));
1492 ((AliMUONChamber*)(*fChambers)[1])->SetGid(gMC->VolId("C02G"));
1493 ((AliMUONChamber*)(*fChambers)[2])->SetGid(gMC->VolId("C03G"));
1494 ((AliMUONChamber*)(*fChambers)[3])->SetGid(gMC->VolId("C04G"));
1495 ((AliMUONChamber*)(*fChambers)[4])->SetGid(gMC->VolId("C05G"));
1496 ((AliMUONChamber*)(*fChambers)[5])->SetGid(gMC->VolId("C06G"));
1497 ((AliMUONChamber*)(*fChambers)[6])->SetGid(gMC->VolId("C07G"));
1498 ((AliMUONChamber*)(*fChambers)[7])->SetGid(gMC->VolId("C08G"));
1499 ((AliMUONChamber*)(*fChambers)[8])->SetGid(gMC->VolId("C09G"));
1500 ((AliMUONChamber*)(*fChambers)[9])->SetGid(gMC->VolId("C10G"));
1501 ((AliMUONChamber*)(*fChambers)[10])->SetGid(gMC->VolId("CG1A"));
1502 ((AliMUONChamber*)(*fChambers)[11])->SetGid(gMC->VolId("CG2A"));
1503 ((AliMUONChamber*)(*fChambers)[12])->SetGid(gMC->VolId("CG3A"));
1504 ((AliMUONChamber*)(*fChambers)[13])->SetGid(gMC->VolId("CG4A"));
1506 printf("\n\n\n Finished Init for version 0 - CPC chamber type\n\n\n");
1509 printf("\n\n\n Start Init for Trigger Circuits\n\n\n");
1510 for (i=0; i<AliMUONConstants::NTriggerCircuit(); i++) {
1511 ( (AliMUONTriggerCircuit*) (*fTriggerCircuits)[i])->Init(i);
1513 printf(" Finished Init for Trigger Circuits\n\n\n");
1518 //___________________________________________
1519 void AliMUONv1::StepManager()
1523 static Int_t vol[2];
1528 Float_t destep, step;
1530 static Float_t eloss, eloss2, xhit, yhit, tof, tlength;
1531 const Float_t kBig=1.e10;
1533 static Float_t hits[15];
1535 TClonesArray &lhits = *fHits;
1538 // Set maximum step size for gas
1539 // numed=gMC->GetMedium();
1541 // Only charged tracks
1542 if( !(gMC->TrackCharge()) ) return;
1544 // Only gas gap inside chamber
1545 // Tag chambers and record hits when track enters
1547 id=gMC->CurrentVolID(copy);
1549 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
1550 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
1555 if (idvol == -1) return;
1557 // Get current particle id (ipart), track position (pos) and momentum (mom)
1558 gMC->TrackPosition(pos);
1559 gMC->TrackMomentum(mom);
1561 ipart = gMC->TrackPid();
1562 //Int_t ipart1 = gMC->IdFromPDG(ipart);
1563 //printf("ich, ipart %d %d \n",vol[0],ipart1);
1566 // momentum loss and steplength in last step
1567 destep = gMC->Edep();
1568 step = gMC->TrackStep();
1571 // record hits when track enters ...
1572 if( gMC->IsTrackEntering()) {
1573 gMC->SetMaxStep(fMaxStepGas);
1574 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1575 Double_t rt = TMath::Sqrt(tc);
1576 Double_t pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1577 Double_t tx=mom[0]/pmom;
1578 Double_t ty=mom[1]/pmom;
1579 Double_t tz=mom[2]/pmom;
1580 Double_t s=((AliMUONChamber*)(*fChambers)[idvol])
1583 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
1584 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1585 hits[0] = Float_t(ipart); // Geant3 particle type
1586 hits[1] = pos[0]+s*tx; // X-position for hit
1587 hits[2] = pos[1]+s*ty; // Y-position for hit
1588 hits[3] = pos[2]+s*tz; // Z-position for hit
1589 hits[4] = theta; // theta angle of incidence
1590 hits[5] = phi; // phi angle of incidence
1591 hits[8] = (Float_t) fNPadHits; // first padhit
1592 hits[9] = -1; // last pad hit
1595 hits[10] = mom[3]; // hit momentum P
1596 hits[11] = mom[0]; // Px/P
1597 hits[12] = mom[1]; // Py/P
1598 hits[13] = mom[2]; // Pz/P
1600 tof=gMC->TrackTime();
1601 hits[14] = tof; // Time of flight
1602 // phi angle of incidence
1608 // Only if not trigger chamber
1611 // Initialize hit position (cursor) in the segmentation model
1612 ((AliMUONChamber*) (*fChambers)[idvol])
1613 ->SigGenInit(pos[0], pos[1], pos[2]);
1616 //printf("In the Trigger Chamber #%d\n",idvol-9);
1622 // Calculate the charge induced on a pad (disintegration) in case
1624 // Mip left chamber ...
1625 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1626 gMC->SetMaxStep(kBig);
1631 Float_t localPos[3];
1632 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
1635 gMC->Gmtod(globalPos,localPos,1);
1638 // tracking chambers
1639 x0 = 0.5*(xhit+pos[0]);
1640 y0 = 0.5*(yhit+pos[1]);
1650 if (eloss >0) MakePadHits(x0,y0,z0,eloss,tof,idvol);
1655 if (fNPadHits > (Int_t)hits[8]) {
1657 hits[9]= (Float_t) fNPadHits;
1660 new(lhits[fNhits++])
1661 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1664 // Check additional signal generation conditions
1665 // defined by the segmentation
1666 // model (boundary crossing conditions)
1668 (((AliMUONChamber*) (*fChambers)[idvol])
1669 ->SigGenCond(pos[0], pos[1], pos[2]))
1671 ((AliMUONChamber*) (*fChambers)[idvol])
1672 ->SigGenInit(pos[0], pos[1], pos[2]);
1674 Float_t localPos[3];
1675 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
1676 gMC->Gmtod(globalPos,localPos,1);
1679 // printf("\n-> MakePadHits, reason special %d",ipart);
1680 if (eloss > 0 && idvol < 10)
1681 MakePadHits(0.5*(xhit+pos[0]),0.5*(yhit+pos[1]),localPos[2],eloss,tof,idvol);
1687 // nothing special happened, add up energy loss