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Correct x-position of chambers.
[u/mrichter/AliRoot.git] / MUON / AliMUONv1.cxx
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a9e2aefa 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
1e8fff9c 12 * about the suitability of this software for any purpeateose. It is *
a9e2aefa 13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/*
17$Log$
f9f7c205 18Revision 1.10 2000/10/12 16:07:04 gosset
19StepManager:
20* SigGenCond only called for tracking chambers,
21 hence no more division by 0,
22 and may use last ALIROOT/dummies.C with exception handling;
23* "10" replaced by "AliMUONConstants::NTrackingCh()".
24
a75f073c 25Revision 1.9 2000/10/06 15:37:22 morsch
26Problems with variable redefinition in for-loop solved.
27Variable names starting with u-case letters changed to l-case.
28
6c5ddcfa 29Revision 1.8 2000/10/06 09:06:31 morsch
30Include Slat chambers (stations 3-5) into geometry (A. de Falco)
31
1e8fff9c 32Revision 1.7 2000/10/02 21:28:09 fca
33Removal of useless dependecies via forward declarations
34
94de3818 35Revision 1.6 2000/10/02 17:20:45 egangler
36Cleaning of the code (continued ) :
37-> coding conventions
38-> void Streamers
39-> some useless includes removed or replaced by "class" statement
40
8c449e83 41Revision 1.5 2000/06/28 15:16:35 morsch
42(1) Client code adapted to new method signatures in AliMUONSegmentation (see comments there)
43to allow development of slat-muon chamber simulation and reconstruction code in the MUON
44framework. The changes should have no side effects (mostly dummy arguments).
45(2) Hit disintegration uses 3-dim hit coordinates to allow simulation
46of chambers with overlapping modules (MakePadHits, Disintegration).
47
802a864d 48Revision 1.4 2000/06/26 14:02:38 morsch
49Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
50
f665c1ea 51Revision 1.3 2000/06/22 14:10:05 morsch
52HP scope problems corrected (PH)
53
e17592e9 54Revision 1.2 2000/06/15 07:58:49 morsch
55Code from MUON-dev joined
56
a9e2aefa 57Revision 1.1.2.14 2000/06/14 14:37:25 morsch
58Initialization of TriggerCircuit added (PC)
59
60Revision 1.1.2.13 2000/06/09 21:55:47 morsch
61Most coding rule violations corrected.
62
63Revision 1.1.2.12 2000/05/05 11:34:29 morsch
64Log inside comments.
65
66Revision 1.1.2.11 2000/05/05 10:06:48 morsch
67Coding Rule violations regarding trigger section corrected (CP)
68Log messages included.
69*/
70
71/////////////////////////////////////////////////////////
72// Manager and hits classes for set:MUON version 0 //
73/////////////////////////////////////////////////////////
74
75#include <TTUBE.h>
76#include <TNode.h>
77#include <TRandom.h>
78#include <TLorentzVector.h>
79#include <iostream.h>
80
81#include "AliMUONv1.h"
82#include "AliRun.h"
83#include "AliMC.h"
94de3818 84#include "AliMagF.h"
a9e2aefa 85#include "AliCallf77.h"
86#include "AliConst.h"
87#include "AliMUONChamber.h"
88#include "AliMUONHit.h"
89#include "AliMUONPadHit.h"
f665c1ea 90#include "AliMUONConstants.h"
8c449e83 91#include "AliMUONTriggerCircuit.h"
a9e2aefa 92
93ClassImp(AliMUONv1)
94
95//___________________________________________
96AliMUONv1::AliMUONv1() : AliMUON()
97{
98// Constructor
99 fChambers = 0;
100}
101
102//___________________________________________
103AliMUONv1::AliMUONv1(const char *name, const char *title)
104 : AliMUON(name,title)
105{
106// Constructor
107}
108
109//___________________________________________
110void AliMUONv1::CreateGeometry()
111{
112//
113// Note: all chambers have the same structure, which could be
114// easily parameterised. This was intentionally not done in order
115// to give a starting point for the implementation of the actual
116// design of each station.
117 Int_t *idtmed = fIdtmed->GetArray()-1099;
118
119// Distance between Stations
120//
121 Float_t bpar[3];
122 Float_t tpar[3];
123 Float_t pgpar[10];
124 Float_t zpos1, zpos2, zfpos;
125 Float_t dframep=.001; // Value for station 3 should be 6 ...
126 Float_t dframep1=.001;
127// Bool_t frames=kTRUE;
128 Bool_t frames=kFALSE;
129
130 Float_t dframez=0.9;
131 Float_t dr;
132 Float_t dstation;
133
134//
135// Rotation matrices in the x-y plane
136 Int_t idrotm[1199];
137// phi= 0 deg
138 AliMatrix(idrotm[1100], 90., 0., 90., 90., 0., 0.);
139// phi= 90 deg
140 AliMatrix(idrotm[1101], 90., 90., 90., 180., 0., 0.);
141// phi= 180 deg
142 AliMatrix(idrotm[1102], 90., 180., 90., 270., 0., 0.);
143// phi= 270 deg
144 AliMatrix(idrotm[1103], 90., 270., 90., 0., 0., 0.);
145//
146 Float_t phi=2*TMath::Pi()/12/2;
147
148//
149// pointer to the current chamber
150// pointer to the current chamber
151 Int_t idAlu1=idtmed[1103];
152 Int_t idAlu2=idtmed[1104];
153// Int_t idAlu1=idtmed[1100];
154// Int_t idAlu2=idtmed[1100];
155 Int_t idAir=idtmed[1100];
156 Int_t idGas=idtmed[1105];
157
158
159 AliMUONChamber *iChamber, *iChamber1, *iChamber2;
160//********************************************************************
161// Station 1 **
162//********************************************************************
163// CONCENTRIC
164 // indices 1 and 2 for first and second chambers in the station
165 // iChamber (first chamber) kept for other quanties than Z,
166 // assumed to be the same in both chambers
167 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[0];
168 iChamber2 =(AliMUONChamber*) (*fChambers)[1];
169 zpos1=iChamber1->Z();
170 zpos2=iChamber2->Z();
171 dstation = zpos2 - zpos1;
172 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
173
174//
175// Mother volume
176 tpar[0] = iChamber->RInner()-dframep1;
177 tpar[1] = (iChamber->ROuter()+dframep1)/TMath::Cos(phi);
178 tpar[2] = dstation/4;
179
180 gMC->Gsvolu("C01M", "TUBE", idAir, tpar, 3);
181 gMC->Gsvolu("C02M", "TUBE", idAir, tpar, 3);
182 gMC->Gspos("C01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
1e8fff9c 183 gMC->Gspos("C02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
a9e2aefa 184// Aluminium frames
185// Outer frames
186 pgpar[0] = 360/12/2;
187 pgpar[1] = 360.;
188 pgpar[2] = 12.;
189 pgpar[3] = 2;
190 pgpar[4] = -dframez/2;
191 pgpar[5] = iChamber->ROuter();
192 pgpar[6] = pgpar[5]+dframep1;
193 pgpar[7] = +dframez/2;
194 pgpar[8] = pgpar[5];
195 pgpar[9] = pgpar[6];
196 gMC->Gsvolu("C01O", "PGON", idAlu1, pgpar, 10);
197 gMC->Gsvolu("C02O", "PGON", idAlu1, pgpar, 10);
198 gMC->Gspos("C01O",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
199 gMC->Gspos("C01O",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
200 gMC->Gspos("C02O",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
201 gMC->Gspos("C02O",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
202//
203// Inner frame
204 tpar[0]= iChamber->RInner()-dframep1;
205 tpar[1]= iChamber->RInner();
206 tpar[2]= dframez/2;
207 gMC->Gsvolu("C01I", "TUBE", idAlu1, tpar, 3);
208 gMC->Gsvolu("C02I", "TUBE", idAlu1, tpar, 3);
209
210 gMC->Gspos("C01I",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
211 gMC->Gspos("C01I",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
212 gMC->Gspos("C02I",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
213 gMC->Gspos("C02I",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
214//
215// Frame Crosses
216 if (frames) {
217
218 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
219 bpar[1] = dframep1/2;
220 bpar[2] = dframez/2;
221 gMC->Gsvolu("C01B", "BOX", idAlu1, bpar, 3);
222 gMC->Gsvolu("C02B", "BOX", idAlu1, bpar, 3);
223
224 gMC->Gspos("C01B",1,"C01M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
225 idrotm[1100],"ONLY");
226 gMC->Gspos("C01B",2,"C01M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
227 idrotm[1100],"ONLY");
228 gMC->Gspos("C01B",3,"C01M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
229 idrotm[1101],"ONLY");
230 gMC->Gspos("C01B",4,"C01M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
231 idrotm[1101],"ONLY");
232 gMC->Gspos("C01B",5,"C01M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
233 idrotm[1100],"ONLY");
234 gMC->Gspos("C01B",6,"C01M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
235 idrotm[1100],"ONLY");
236 gMC->Gspos("C01B",7,"C01M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
237 idrotm[1101],"ONLY");
238 gMC->Gspos("C01B",8,"C01M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
239 idrotm[1101],"ONLY");
240
241 gMC->Gspos("C02B",1,"C02M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
242 idrotm[1100],"ONLY");
243 gMC->Gspos("C02B",2,"C02M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
244 idrotm[1100],"ONLY");
245 gMC->Gspos("C02B",3,"C02M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
246 idrotm[1101],"ONLY");
247 gMC->Gspos("C02B",4,"C02M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
248 idrotm[1101],"ONLY");
249 gMC->Gspos("C02B",5,"C02M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
250 idrotm[1100],"ONLY");
251 gMC->Gspos("C02B",6,"C02M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
252 idrotm[1100],"ONLY");
253 gMC->Gspos("C02B",7,"C02M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
254 idrotm[1101],"ONLY");
255 gMC->Gspos("C02B",8,"C02M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
256 idrotm[1101],"ONLY");
257 }
258//
259// Chamber Material represented by Alu sheet
260 tpar[0]= iChamber->RInner();
261 tpar[1]= iChamber->ROuter();
262 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
263 gMC->Gsvolu("C01A", "TUBE", idAlu2, tpar, 3);
264 gMC->Gsvolu("C02A", "TUBE",idAlu2, tpar, 3);
265 gMC->Gspos("C01A", 1, "C01M", 0., 0., 0., 0, "ONLY");
266 gMC->Gspos("C02A", 1, "C02M", 0., 0., 0., 0, "ONLY");
267//
268// Sensitive volumes
269 // tpar[2] = iChamber->DGas();
270 tpar[2] = iChamber->DGas()/2;
271 gMC->Gsvolu("C01G", "TUBE", idtmed[1108], tpar, 3);
272 gMC->Gsvolu("C02G", "TUBE", idtmed[1108], tpar, 3);
273 gMC->Gspos("C01G", 1, "C01A", 0., 0., 0., 0, "ONLY");
274 gMC->Gspos("C02G", 1, "C02A", 0., 0., 0., 0, "ONLY");
275//
276// Frame Crosses to be placed inside gas
277 if (frames) {
278
279 dr = (iChamber->ROuter() - iChamber->RInner());
280 bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
281 bpar[1] = dframep1/2;
282 bpar[2] = iChamber->DGas()/2;
283 gMC->Gsvolu("C01F", "BOX", idAlu1, bpar, 3);
284 gMC->Gsvolu("C02F", "BOX", idAlu1, bpar, 3);
285
286 gMC->Gspos("C01F",1,"C01G", +iChamber->RInner()+bpar[0] , 0, 0,
287 idrotm[1100],"ONLY");
288 gMC->Gspos("C01F",2,"C01G", -iChamber->RInner()-bpar[0] , 0, 0,
289 idrotm[1100],"ONLY");
290 gMC->Gspos("C01F",3,"C01G", 0, +iChamber->RInner()+bpar[0] , 0,
291 idrotm[1101],"ONLY");
292 gMC->Gspos("C01F",4,"C01G", 0, -iChamber->RInner()-bpar[0] , 0,
293 idrotm[1101],"ONLY");
294
295 gMC->Gspos("C02F",1,"C02G", +iChamber->RInner()+bpar[0] , 0, 0,
296 idrotm[1100],"ONLY");
297 gMC->Gspos("C02F",2,"C02G", -iChamber->RInner()-bpar[0] , 0, 0,
298 idrotm[1100],"ONLY");
299 gMC->Gspos("C02F",3,"C02G", 0, +iChamber->RInner()+bpar[0] , 0,
300 idrotm[1101],"ONLY");
301 gMC->Gspos("C02F",4,"C02G", 0, -iChamber->RInner()-bpar[0] , 0,
302 idrotm[1101],"ONLY");
303 }
1e8fff9c 304
a9e2aefa 305//********************************************************************
306// Station 2 **
307//********************************************************************
308 // indices 1 and 2 for first and second chambers in the station
309 // iChamber (first chamber) kept for other quanties than Z,
310 // assumed to be the same in both chambers
311 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[2];
312 iChamber2 =(AliMUONChamber*) (*fChambers)[3];
313 zpos1=iChamber1->Z();
314 zpos2=iChamber2->Z();
315 dstation = zpos2 - zpos1;
316 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
317
318//
319// Mother volume
320 tpar[0] = iChamber->RInner()-dframep;
321 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
322 tpar[2] = dstation/4;
323
324 gMC->Gsvolu("C03M", "TUBE", idAir, tpar, 3);
325 gMC->Gsvolu("C04M", "TUBE", idAir, tpar, 3);
326 gMC->Gspos("C03M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
327 gMC->Gspos("C04M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
1e8fff9c 328
a9e2aefa 329// Aluminium frames
330// Outer frames
331 pgpar[0] = 360/12/2;
332 pgpar[1] = 360.;
333 pgpar[2] = 12.;
334 pgpar[3] = 2;
335 pgpar[4] = -dframez/2;
336 pgpar[5] = iChamber->ROuter();
337 pgpar[6] = pgpar[5]+dframep;
338 pgpar[7] = +dframez/2;
339 pgpar[8] = pgpar[5];
340 pgpar[9] = pgpar[6];
341 gMC->Gsvolu("C03O", "PGON", idAlu1, pgpar, 10);
342 gMC->Gsvolu("C04O", "PGON", idAlu1, pgpar, 10);
343 gMC->Gspos("C03O",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
344 gMC->Gspos("C03O",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
345 gMC->Gspos("C04O",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
346 gMC->Gspos("C04O",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
347//
348// Inner frame
349 tpar[0]= iChamber->RInner()-dframep;
350 tpar[1]= iChamber->RInner();
351 tpar[2]= dframez/2;
352 gMC->Gsvolu("C03I", "TUBE", idAlu1, tpar, 3);
353 gMC->Gsvolu("C04I", "TUBE", idAlu1, tpar, 3);
354
355 gMC->Gspos("C03I",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
356 gMC->Gspos("C03I",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
357 gMC->Gspos("C04I",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
358 gMC->Gspos("C04I",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
359//
360// Frame Crosses
361 if (frames) {
362
363 bpar[0] = (iChamber->ROuter() - iChamber->RInner())/2;
364 bpar[1] = dframep/2;
365 bpar[2] = dframez/2;
366 gMC->Gsvolu("C03B", "BOX", idAlu1, bpar, 3);
367 gMC->Gsvolu("C04B", "BOX", idAlu1, bpar, 3);
368
369 gMC->Gspos("C03B",1,"C03M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
370 idrotm[1100],"ONLY");
371 gMC->Gspos("C03B",2,"C03M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
372 idrotm[1100],"ONLY");
373 gMC->Gspos("C03B",3,"C03M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
374 idrotm[1101],"ONLY");
375 gMC->Gspos("C03B",4,"C03M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
376 idrotm[1101],"ONLY");
377 gMC->Gspos("C03B",5,"C03M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
378 idrotm[1100],"ONLY");
379 gMC->Gspos("C03B",6,"C03M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
380 idrotm[1100],"ONLY");
381 gMC->Gspos("C03B",7,"C03M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
382 idrotm[1101],"ONLY");
383 gMC->Gspos("C03B",8,"C03M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
384 idrotm[1101],"ONLY");
385
386 gMC->Gspos("C04B",1,"C04M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
387 idrotm[1100],"ONLY");
388 gMC->Gspos("C04B",2,"C04M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
389 idrotm[1100],"ONLY");
390 gMC->Gspos("C04B",3,"C04M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
391 idrotm[1101],"ONLY");
392 gMC->Gspos("C04B",4,"C04M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
393 idrotm[1101],"ONLY");
394 gMC->Gspos("C04B",5,"C04M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
395 idrotm[1100],"ONLY");
396 gMC->Gspos("C04B",6,"C04M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
397 idrotm[1100],"ONLY");
398 gMC->Gspos("C04B",7,"C04M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
399 idrotm[1101],"ONLY");
400 gMC->Gspos("C04B",8,"C04M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
401 idrotm[1101],"ONLY");
402 }
403//
404// Chamber Material represented by Alu sheet
405 tpar[0]= iChamber->RInner();
406 tpar[1]= iChamber->ROuter();
407 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
408 gMC->Gsvolu("C03A", "TUBE", idAlu2, tpar, 3);
409 gMC->Gsvolu("C04A", "TUBE", idAlu2, tpar, 3);
410 gMC->Gspos("C03A", 1, "C03M", 0., 0., 0., 0, "ONLY");
411 gMC->Gspos("C04A", 1, "C04M", 0., 0., 0., 0, "ONLY");
412//
413// Sensitive volumes
414 // tpar[2] = iChamber->DGas();
415 tpar[2] = iChamber->DGas()/2;
416 gMC->Gsvolu("C03G", "TUBE", idGas, tpar, 3);
417 gMC->Gsvolu("C04G", "TUBE", idGas, tpar, 3);
418 gMC->Gspos("C03G", 1, "C03A", 0., 0., 0., 0, "ONLY");
419 gMC->Gspos("C04G", 1, "C04A", 0., 0., 0., 0, "ONLY");
420
421 if (frames) {
422//
423// Frame Crosses to be placed inside gas
424 dr = (iChamber->ROuter() - iChamber->RInner());
425 bpar[0] = TMath::Sqrt(dr*dr-dframep*dframep/4)/2;
426 bpar[1] = dframep/2;
427 bpar[2] = iChamber->DGas()/2;
428 gMC->Gsvolu("C03F", "BOX", idAlu1, bpar, 3);
429 gMC->Gsvolu("C04F", "BOX", idAlu1, bpar, 3);
430
431 gMC->Gspos("C03F",1,"C03G", +iChamber->RInner()+bpar[0] , 0, 0,
432 idrotm[1100],"ONLY");
433 gMC->Gspos("C03F",2,"C03G", -iChamber->RInner()-bpar[0] , 0, 0,
434 idrotm[1100],"ONLY");
435 gMC->Gspos("C03F",3,"C03G", 0, +iChamber->RInner()+bpar[0] , 0,
436 idrotm[1101],"ONLY");
437 gMC->Gspos("C03F",4,"C03G", 0, -iChamber->RInner()-bpar[0] , 0,
438 idrotm[1101],"ONLY");
439
440 gMC->Gspos("C04F",1,"C04G", +iChamber->RInner()+bpar[0] , 0, 0,
441 idrotm[1100],"ONLY");
442 gMC->Gspos("C04F",2,"C04G", -iChamber->RInner()-bpar[0] , 0, 0,
443 idrotm[1100],"ONLY");
444 gMC->Gspos("C04F",3,"C04G", 0, +iChamber->RInner()+bpar[0] , 0,
445 idrotm[1101],"ONLY");
446 gMC->Gspos("C04F",4,"C04G", 0, -iChamber->RInner()-bpar[0] , 0,
447 idrotm[1101],"ONLY");
448 }
1e8fff9c 449
a9e2aefa 450//********************************************************************
451// Station 3 **
452//********************************************************************
453 // indices 1 and 2 for first and second chambers in the station
454 // iChamber (first chamber) kept for other quanties than Z,
455 // assumed to be the same in both chambers
456 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[4];
457 iChamber2 =(AliMUONChamber*) (*fChambers)[5];
458 zpos1=iChamber1->Z();
459 zpos2=iChamber2->Z();
460 dstation = zpos2 - zpos1;
461
462 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
463//
464// Mother volume
465 tpar[0] = iChamber->RInner()-dframep;
466 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
467 tpar[2] = dstation/4;
468 gMC->Gsvolu("C05M", "TUBE", idAir, tpar, 3);
469 gMC->Gsvolu("C06M", "TUBE", idAir, tpar, 3);
470 gMC->Gspos("C05M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
471 gMC->Gspos("C06M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
1e8fff9c 472
473 // volumes for slat geometry (xx=5,..,10 chamber id):
474 // Sxx0 Sxx1 Sxx2 Sxx3 --> Slat Mother volumes
475 // SxxG --> Sensitive volume (gas)
476 // SxxP --> PCB (copper)
477 // SxxI --> Insulator (vetronite)
478 // SxxC --> Carbon panel
479 // SxxR --> Rohacell
480 // SxxH, SxxV --> Horizontal and Vertical frames (vetronite)
481
482 // define the id of tracking media:
483 Int_t idCopper = idtmed[1110];
484 Int_t idGlass = idtmed[1111];
485 Int_t idCarbon = idtmed[1112];
486 Int_t idRoha = idtmed[1113];
487
488 const Int_t nSlats3 = 4; // number of slats per quadrant
f9f7c205 489 const Int_t nPCB3[nSlats3] = {3,4,3,2}; // n PCB per slat
1e8fff9c 490
491 // sensitive area: 40*40 cm**2
6c5ddcfa 492 const Float_t sensLength = 40.;
493 const Float_t sensHeight = 40.;
494 const Float_t sensWidth = 0.5; // according to TDR fig 2.120
495 const Int_t sensMaterial = idGas;
1e8fff9c 496 const Float_t yOverlap = 1.5;
497
498 // PCB dimensions in cm; width: 30 mum copper
6c5ddcfa 499 const Float_t pcbLength = sensLength;
500 const Float_t pcbHeight = 60.;
501 const Float_t pcbWidth = 0.003;
502 const Int_t pcbMaterial = idCopper;
1e8fff9c 503
504 // Insulating material: 200 mum glass fiber glued to pcb
6c5ddcfa 505 const Float_t insuLength = pcbLength;
506 const Float_t insuHeight = pcbHeight;
507 const Float_t insuWidth = 0.020;
508 const Int_t insuMaterial = idGlass;
1e8fff9c 509
510 // Carbon fiber panels: 200mum carbon/epoxy skin
6c5ddcfa 511 const Float_t panelLength = sensLength;
512 const Float_t panelHeight = sensHeight;
513 const Float_t panelWidth = 0.020;
514 const Int_t panelMaterial = idCarbon;
1e8fff9c 515
516 // rohacell between the two carbon panels
6c5ddcfa 517 const Float_t rohaLength = sensLength;
518 const Float_t rohaHeight = sensHeight;
519 const Float_t rohaWidth = 0.5;
520 const Int_t rohaMaterial = idRoha;
1e8fff9c 521
522 // Frame around the slat: 2 sticks along length,2 along height
523 // H: the horizontal ones
6c5ddcfa 524 const Float_t hFrameLength = pcbLength;
525 const Float_t hFrameHeight = 1.5;
526 const Float_t hFrameWidth = sensWidth;
527 const Int_t hFrameMaterial = idGlass;
1e8fff9c 528
529 // V: the vertical ones
6c5ddcfa 530 const Float_t vFrameLength = 4.0;
531 const Float_t vFrameHeight = sensHeight + hFrameHeight;
532 const Float_t vFrameWidth = sensWidth;
533 const Int_t vFrameMaterial = idGlass;
1e8fff9c 534
535 // B: the horizontal border filled with rohacell
6c5ddcfa 536 const Float_t bFrameLength = hFrameLength;
537 const Float_t bFrameHeight = (pcbHeight - sensHeight)/2. - hFrameHeight;
538 const Float_t bFrameWidth = hFrameWidth;
539 const Int_t bFrameMaterial = idRoha;
1e8fff9c 540
541 // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper)
6c5ddcfa 542 const Float_t nulocLength = 2.5;
543 const Float_t nulocHeight = 7.5;
544 const Float_t nulocWidth = 0.0030 + 0.0014; // equivalent copper width of vetronite;
545 const Int_t nulocMaterial = idCopper;
1e8fff9c 546
547 // Gassiplex package
6c5ddcfa 548 const Float_t gassiLength = 1.0;
549 const Float_t gassiHeight = 1.0;
550 const Float_t gassiWidth = 0.15; // check it !!!
551 const Int_t gassiMaterial = idGlass;
1e8fff9c 552
553 // slat dimensions: slat is a MOTHER volume!!! made of air
f9f7c205 554 Float_t slatLength3[nSlats3];
6c5ddcfa 555 const Float_t slatHeight = pcbHeight;
556 const Float_t slatWidth = sensWidth + 2.*(pcbWidth + insuWidth +
557 2.* panelWidth + rohaWidth);
558 const Int_t slatMaterial = idAir;
559 const Float_t dSlatLength = vFrameLength; // border on left and right
1e8fff9c 560
561 // create and position the slat (mother) volumes
562 Float_t spar[3];
6c5ddcfa 563 char volNam5[5];
f9f7c205 564 char volDiv5[5];
6c5ddcfa 565 char volNam6[5];
f9f7c205 566 char volDiv6[5];
567 Float_t xSlat3;
6c5ddcfa 568 Int_t i, j;
569 for (i = 0; i<nSlats3; i++){
f9f7c205 570 slatLength3[i] = pcbLength * nPCB3[i] + 2. * dSlatLength;
571 xSlat3 = slatLength3[i]/2. - vFrameLength/2.;
572 if (i==0) xSlat3 += 40.;
573
574 Float_t ySlat31 = sensHeight * (i+0.5) - yOverlap * i - yOverlap/2.;
575 Float_t ySlat32 = -sensHeight * (i+0.5) + yOverlap * i + yOverlap/2.;
576 spar[0] = slatLength3[i]/2.;
577 spar[1] = slatHeight/2.;
578 spar[2] = slatWidth/2.;
579 // zSlat to be checked (odd downstream or upstream?)
580 Float_t zSlat = (i%2 ==0)? -slatWidth/2. : slatWidth/2.;
581 sprintf(volNam5,"S05%d",i);
582 gMC->Gsvolu(volNam5,"BOX",slatMaterial,spar,3);
583 gMC->Gspos(volNam5, i*4+1,"C05M", xSlat3, ySlat31, zSlat, 0, "ONLY");
584 gMC->Gspos(volNam5, i*4+2,"C05M",-xSlat3, ySlat31, zSlat, 0, "ONLY");
585 gMC->Gspos(volNam5, i*4+3,"C05M", xSlat3, ySlat32,-zSlat, 0, "ONLY");
586 gMC->Gspos(volNam5, i*4+4,"C05M",-xSlat3, ySlat32,-zSlat, 0, "ONLY");
587 sprintf(volNam6,"S06%d",i);
588 gMC->Gsvolu(volNam6,"BOX",slatMaterial,spar,3);
589 gMC->Gspos(volNam6, i*4+1,"C06M", xSlat3, ySlat31, zSlat, 0, "ONLY");
590 gMC->Gspos(volNam6, i*4+2,"C06M",-xSlat3, ySlat31, zSlat, 0, "ONLY");
591 gMC->Gspos(volNam6, i*4+3,"C06M", xSlat3, ySlat32,-zSlat, 0, "ONLY");
592 gMC->Gspos(volNam6, i*4+4,"C06M",-xSlat3, ySlat32,-zSlat, 0, "ONLY");
593 // 1st pcb in 1st slat made by some rectangular divisions
594/*
595 if (i==0) {
596 Int_t ndiv=8;
597 Double_t dydiv= sensHeight/ndiv;
598 Double_t ydiv = -dydiv;
599 for (Int_t idiv=0;idiv<ndiv; idiv++){
600 ydiv+= dydiv;
601 Float_t xdiv =0;
602 if (ydiv<30) xdiv= 30. * TMath::Sin( TMath::ACos(ydiv/30.) );
603 spar[0] = (pcbLength-xdiv)/2.;
604 spar[1] = dydiv/2.;
605 spar[2] = slatWidth/2.;
606
607 sprintf(volDiv5,"D05%d",idiv);
608 sprintf(volDiv6,"D06%d",idiv);
609
610 gMC->Gsvolu(volDiv5,"BOX",sensMaterial,spar,3);
611 Float_t xvol=(pcbLength+xdiv)/2.;
612 Float_t yvol=ydiv+dydiv/2.;
613 gMC->Gspos(volDiv5, 1,"C05M", xvol, yvol, zSlat, 0, "ONLY");
614 gMC->Gspos(volDiv5, 2,"C05M",-xvol, yvol, zSlat, 0, "ONLY");
615 gMC->Gspos(volDiv5, 3,"C05M", xvol,-yvol,-zSlat, 0, "ONLY");
616 gMC->Gspos(volDiv5, 4,"C05M",-xvol,-yvol,-zSlat, 0, "ONLY");
617 gMC->Gspos(volDiv6, 1,"C06M", xvol, yvol, zSlat, 0, "ONLY");
618 gMC->Gspos(volDiv6, 2,"C06M",-xvol, yvol, zSlat, 0, "ONLY");
619 gMC->Gspos(volDiv6, 3,"C06M", xvol,-yvol,-zSlat, 0, "ONLY");
620 gMC->Gspos(volDiv6, 4,"C06M",-xvol,-yvol,-zSlat, 0, "ONLY");
621 }
622 }
623 */
1e8fff9c 624 }
a9e2aefa 625
1e8fff9c 626 // create the sensitive volumes (subdivided as the PCBs),
6c5ddcfa 627 Float_t sensPar[3] = { sensLength/2., sensHeight/2., sensWidth/2. };
628 gMC->Gsvolu("S05G","BOX",sensMaterial,sensPar,3);
629 gMC->Gsvolu("S06G","BOX",sensMaterial,sensPar,3);
1e8fff9c 630
631 // create the PCB volume
6c5ddcfa 632 Float_t pcbpar[3] = { pcbLength/2., pcbHeight/2., pcbWidth/2. };
633 gMC->Gsvolu("S05P","BOX",pcbMaterial,pcbpar,3);
634 gMC->Gsvolu("S06P","BOX",pcbMaterial,pcbpar,3);
1e8fff9c 635
636 // create the insulating material volume
6c5ddcfa 637 Float_t insupar[3] = { insuLength/2., insuHeight/2., insuWidth/2. };
638 gMC->Gsvolu("S05I","BOX",insuMaterial,insupar,3);
639 gMC->Gsvolu("S06I","BOX",insuMaterial,insupar,3);
1e8fff9c 640
641 // create the panel volume
6c5ddcfa 642 Float_t panelpar[3] = { panelLength/2., panelHeight/2., panelWidth/2. };
643 gMC->Gsvolu("S05C","BOX",panelMaterial,panelpar,3);
644 gMC->Gsvolu("S06C","BOX",panelMaterial,panelpar,3);
1e8fff9c 645
646 // create the rohacell volume
6c5ddcfa 647 Float_t rohapar[3] = { rohaLength/2., rohaHeight/2., rohaWidth/2. };
648 gMC->Gsvolu("S05R","BOX",rohaMaterial,rohapar,3);
649 gMC->Gsvolu("S06R","BOX",rohaMaterial,rohapar,3);
1e8fff9c 650
651 // create the vertical frame volume
6c5ddcfa 652 Float_t vFramepar[3]={vFrameLength/2., vFrameHeight/2., vFrameWidth/2.};
653 gMC->Gsvolu("S05V","BOX",vFrameMaterial,vFramepar,3);
654 gMC->Gsvolu("S06V","BOX",vFrameMaterial,vFramepar,3);
1e8fff9c 655
656 // create the horizontal frame volume
6c5ddcfa 657 Float_t hFramepar[3]={hFrameLength/2., hFrameHeight/2., hFrameWidth/2.};
658 gMC->Gsvolu("S05H","BOX",hFrameMaterial,hFramepar,3);
659 gMC->Gsvolu("S06H","BOX",hFrameMaterial,hFramepar,3);
1e8fff9c 660
661 // create the horizontal border volume
6c5ddcfa 662 Float_t bFramepar[3]={bFrameLength/2., bFrameHeight/2., bFrameWidth/2.};
663 gMC->Gsvolu("S05B","BOX",bFrameMaterial,bFramepar,3);
664 gMC->Gsvolu("S06B","BOX",bFrameMaterial,bFramepar,3);
1e8fff9c 665
666 Int_t index=0;
6c5ddcfa 667 for (i = 0; i<nSlats3; i++){
668 sprintf(volNam5,"S05%d",i);
669 sprintf(volNam6,"S06%d",i);
f9f7c205 670 Float_t xvFrame = (slatLength3[i] - vFrameLength)/2.;
6c5ddcfa 671 gMC->Gspos("S05V",2*i-1,volNam5, xvFrame, 0., 0. , 0, "ONLY");
672 gMC->Gspos("S05V",2*i ,volNam5,-xvFrame, 0., 0. , 0, "ONLY");
673 gMC->Gspos("S06V",2*i-1,volNam6, xvFrame, 0., 0. , 0, "ONLY");
674 gMC->Gspos("S06V",2*i ,volNam6,-xvFrame, 0., 0. , 0, "ONLY");
675 for (j=0; j<nPCB3[i]; j++){
1e8fff9c 676 index++;
6c5ddcfa 677 Float_t xx = sensLength * (-nPCB3[i]/2.+j+.5);
1e8fff9c 678 Float_t yy = 0.;
679 Float_t zSens = 0.;
6c5ddcfa 680 gMC->Gspos("S05G",index,volNam5, xx, yy, zSens , 0, "ONLY");
681 gMC->Gspos("S06G",index,volNam6, xx, yy, zSens , 0, "ONLY");
682 Float_t zPCB = (sensWidth+pcbWidth)/2.;
683 gMC->Gspos("S05P",2*index-1,volNam5, xx, yy, zPCB , 0, "ONLY");
684 gMC->Gspos("S05P",2*index ,volNam5, xx, yy,-zPCB , 0, "ONLY");
685 gMC->Gspos("S06P",2*index-1,volNam6, xx, yy, zPCB , 0, "ONLY");
686 gMC->Gspos("S06P",2*index ,volNam6, xx, yy,-zPCB , 0, "ONLY");
687 Float_t zInsu = (insuWidth+pcbWidth)/2. + zPCB;
688 gMC->Gspos("S05I",2*index-1,volNam5, xx, yy, zInsu , 0, "ONLY");
689 gMC->Gspos("S05I",2*index ,volNam5, xx, yy,-zInsu , 0, "ONLY");
690 gMC->Gspos("S06I",2*index-1,volNam6, xx, yy, zInsu , 0, "ONLY");
691 gMC->Gspos("S06I",2*index ,volNam6, xx, yy,-zInsu , 0, "ONLY");
692 Float_t zPanel1 = (insuWidth+panelWidth)/2. + zInsu;
693 gMC->Gspos("S05C",4*index-3,volNam5, xx, yy, zPanel1 , 0, "ONLY");
694 gMC->Gspos("S05C",4*index-2,volNam5, xx, yy,-zPanel1 , 0, "ONLY");
695 gMC->Gspos("S06C",4*index-3,volNam6, xx, yy, zPanel1 , 0, "ONLY");
696 gMC->Gspos("S06C",4*index-2,volNam6, xx, yy,-zPanel1 , 0, "ONLY");
697 Float_t zRoha = (rohaWidth+panelWidth)/2. + zPanel1;
698 gMC->Gspos("S05R",2*index-1,volNam5, xx, yy, zRoha , 0, "ONLY");
699 gMC->Gspos("S05R",2*index ,volNam5, xx, yy,-zRoha , 0, "ONLY");
700 gMC->Gspos("S06R",2*index-1,volNam6, xx, yy, zRoha , 0, "ONLY");
701 gMC->Gspos("S06R",2*index ,volNam6, xx, yy,-zRoha , 0, "ONLY");
702 Float_t zPanel2 = (rohaWidth+panelWidth)/2. + zRoha;
703 gMC->Gspos("S05C",4*index-1,volNam5, xx, yy, zPanel2 , 0, "ONLY");
704 gMC->Gspos("S05C",4*index ,volNam5, xx, yy,-zPanel2 , 0, "ONLY");
705 gMC->Gspos("S06C",4*index-1,volNam6, xx, yy, zPanel2 , 0, "ONLY");
706 gMC->Gspos("S06C",4*index ,volNam6, xx, yy,-zPanel2 , 0, "ONLY");
707 Float_t yframe = (sensHeight + hFrameHeight)/2.;
708 gMC->Gspos("S05H",2*index-1,volNam5, xx, yframe, 0. , 0, "ONLY");
709 gMC->Gspos("S05H",2*index ,volNam5, xx,-yframe, 0. , 0, "ONLY");
710 gMC->Gspos("S06H",2*index-1,volNam6, xx, yframe, 0. , 0, "ONLY");
711 gMC->Gspos("S06H",2*index ,volNam6, xx,-yframe, 0. , 0, "ONLY");
712 Float_t yborder = (bFrameHeight + hFrameHeight)/2. + yframe;
713 gMC->Gspos("S05B",2*index-1,volNam5, xx, yborder, 0. , 0, "ONLY");
714 gMC->Gspos("S05B",2*index ,volNam5, xx,-yborder, 0. , 0, "ONLY");
715 gMC->Gspos("S06B",2*index-1,volNam6, xx, yborder, 0. , 0, "ONLY");
716 gMC->Gspos("S06B",2*index ,volNam6, xx,-yborder, 0. , 0, "ONLY");
1e8fff9c 717 }
a9e2aefa 718 }
a9e2aefa 719
1e8fff9c 720 // create the NULOC volume and position it in the horizontal frame
6c5ddcfa 721 Float_t nulocpar[3]={nulocLength/2., nulocHeight/2., nulocWidth/2.};
722 gMC->Gsvolu("S05N","BOX",nulocMaterial,nulocpar,3);
723 gMC->Gsvolu("S06N","BOX",nulocMaterial,nulocpar,3);
1e8fff9c 724
6c5ddcfa 725 Float_t xxmax = (bFrameLength - nulocLength)/2.;
726 index = 0;
727 Float_t xx;
728
729 for (xx = -xxmax; xx<=xxmax; xx+=3*nulocLength) {
1e8fff9c 730 index++;
6c5ddcfa 731 gMC->Gspos("S05N",2*index-1,"S05B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
732 gMC->Gspos("S05N",2*index ,"S05B", xx, 0., bFrameWidth/4., 0, "ONLY");
733 gMC->Gspos("S06N",2*index-1,"S06B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
734 gMC->Gspos("S06N",2*index ,"S06B", xx, 0., bFrameWidth/4., 0, "ONLY");
1e8fff9c 735 }
736
737 // create the gassiplex volume
6c5ddcfa 738 Float_t gassipar[3]={gassiLength/2., gassiHeight/2., gassiWidth/2.};
739 gMC->Gsvolu("S05E","BOX",gassiMaterial,gassipar,3);
740 gMC->Gsvolu("S06E","BOX",gassiMaterial,gassipar,3);
1e8fff9c 741
742
743 // position 4 gassiplex in the nuloc
744
6c5ddcfa 745 gMC->Gspos("S05E",1,"S05N", 0., -3 * nulocHeight/8., 0. , 0, "ONLY");
746 gMC->Gspos("S05E",2,"S05N", 0., - nulocHeight/8., 0. , 0, "ONLY");
747 gMC->Gspos("S05E",3,"S05N", 0., nulocHeight/8., 0. , 0, "ONLY");
748 gMC->Gspos("S05E",4,"S05N", 0., 3 * nulocHeight/8., 0. , 0, "ONLY");
749 gMC->Gspos("S06E",1,"S06N", 0., -3 * nulocHeight/8., 0. , 0, "ONLY");
750 gMC->Gspos("S06E",2,"S06N", 0., - nulocHeight/8., 0. , 0, "ONLY");
751 gMC->Gspos("S06E",3,"S06N", 0., nulocHeight/8., 0. , 0, "ONLY");
752 gMC->Gspos("S06E",4,"S06N", 0., 3 * nulocHeight/8., 0. , 0, "ONLY");
1e8fff9c 753
a9e2aefa 754
755//********************************************************************
756// Station 4 **
757//********************************************************************
758 // indices 1 and 2 for first and second chambers in the station
759 // iChamber (first chamber) kept for other quanties than Z,
760 // assumed to be the same in both chambers
761 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[6];
762 iChamber2 =(AliMUONChamber*) (*fChambers)[7];
763 zpos1=iChamber1->Z();
764 zpos2=iChamber2->Z();
765 dstation = zpos2 - zpos1;
766 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
767
768//
769// Mother volume
770 tpar[0] = iChamber->RInner()-dframep;
771 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
1e8fff9c 772 tpar[2] = 3.252;
a9e2aefa 773
774 gMC->Gsvolu("C07M", "TUBE", idAir, tpar, 3);
775 gMC->Gsvolu("C08M", "TUBE", idAir, tpar, 3);
776 gMC->Gspos("C07M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
777 gMC->Gspos("C08M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
1e8fff9c 778
a9e2aefa 779
f9f7c205 780 const Int_t nSlats4 = 6; // number of slats per quadrant
781 const Int_t nPCB4[nSlats4] = {4,5,5,4,3,2}; // n PCB per slat
1e8fff9c 782
783 // slat dimensions: slat is a MOTHER volume!!! made of air
6c5ddcfa 784 Float_t slatLength4[nSlats4];
1e8fff9c 785
786 // create and position the slat (mother) volumes
787
6c5ddcfa 788 char volNam7[5];
789 char volNam8[5];
1e8fff9c 790 Float_t xSlat4;
f9f7c205 791 Float_t ySlat4;
1e8fff9c 792
793
6c5ddcfa 794 for (i = 0; i<nSlats4; i++){
795 slatLength4[i] = pcbLength * nPCB4[i] + 2. * dSlatLength;
f9f7c205 796 xSlat4 = slatLength4[i]/2. - vFrameLength/2.;
797 if (i==0) xSlat4 += 37.5;
a9e2aefa 798
f9f7c205 799 // ySlat41 = sensHeight * (i+0.5) - yOverlap *i - yOverlap/2.;
800 // ySlat42 = -sensHeight * (i+0.5) + yOverlap *i + yOverlap/2.;
801 ySlat4 = sensHeight * i - yOverlap *i;
a9e2aefa 802
6c5ddcfa 803 spar[0] = slatLength4[i]/2.;
804 spar[1] = slatHeight/2.;
805 spar[2] = slatWidth/2.;
1e8fff9c 806 // zSlat to be checked (odd downstream or upstream?)
6c5ddcfa 807 Float_t zSlat = (i%2 ==0)? slatWidth/2. : -slatWidth/2.;
808 sprintf(volNam7,"S07%d",i);
809 gMC->Gsvolu(volNam7,"BOX",slatMaterial,spar,3);
f9f7c205 810 gMC->Gspos(volNam7, i*4+1,"C07M", xSlat4, ySlat4, zSlat, 0, "ONLY");
811 gMC->Gspos(volNam7, i*4+2,"C07M",-xSlat4, ySlat4, zSlat, 0, "ONLY");
812 if (i>0) {
813 gMC->Gspos(volNam7, i*4+3,"C07M", xSlat4,-ySlat4, zSlat, 0, "ONLY");
814 gMC->Gspos(volNam7, i*4+4,"C07M",-xSlat4,-ySlat4, zSlat, 0, "ONLY");
815 }
6c5ddcfa 816 sprintf(volNam8,"S08%d",i);
817 gMC->Gsvolu(volNam8,"BOX",slatMaterial,spar,3);
f9f7c205 818 gMC->Gspos(volNam8, i*4+1,"C08M", xSlat4, ySlat4, zSlat, 0, "ONLY");
819 gMC->Gspos(volNam8, i*4+2,"C08M",-xSlat4, ySlat4, zSlat, 0, "ONLY");
820 if (i>0) {
821 gMC->Gspos(volNam8, i*4+3,"C08M", xSlat4,-ySlat4, zSlat, 0, "ONLY");
822 gMC->Gspos(volNam8, i*4+4,"C08M",-xSlat4,-ySlat4, zSlat, 0, "ONLY");
823 }
a9e2aefa 824 }
825
1e8fff9c 826 // create the sensitive volumes (subdivided as the PCBs),
827
6c5ddcfa 828 gMC->Gsvolu("S07G","BOX",sensMaterial,sensPar,3);
829 gMC->Gsvolu("S08G","BOX",sensMaterial,sensPar,3);
a9e2aefa 830
1e8fff9c 831 // create the PCB volume
832
6c5ddcfa 833 gMC->Gsvolu("S07P","BOX",pcbMaterial,pcbpar,3);
834 gMC->Gsvolu("S08P","BOX",pcbMaterial,pcbpar,3);
1e8fff9c 835
836 // create the insulating material volume
837
6c5ddcfa 838 gMC->Gsvolu("S07I","BOX",insuMaterial,insupar,3);
839 gMC->Gsvolu("S08I","BOX",insuMaterial,insupar,3);
1e8fff9c 840
841 // create the panel volume
842
6c5ddcfa 843 gMC->Gsvolu("S07C","BOX",panelMaterial,panelpar,3);
844 gMC->Gsvolu("S08C","BOX",panelMaterial,panelpar,3);
1e8fff9c 845
846 // create the rohacell volume
847
6c5ddcfa 848 gMC->Gsvolu("S07R","BOX",rohaMaterial,rohapar,3);
849 gMC->Gsvolu("S08R","BOX",rohaMaterial,rohapar,3);
1e8fff9c 850
851 // create the vertical frame volume
852
6c5ddcfa 853 gMC->Gsvolu("S07V","BOX",vFrameMaterial,vFramepar,3);
854 gMC->Gsvolu("S08V","BOX",vFrameMaterial,vFramepar,3);
1e8fff9c 855
856 // create the horizontal frame volume
857
6c5ddcfa 858 gMC->Gsvolu("S07H","BOX",hFrameMaterial,hFramepar,3);
859 gMC->Gsvolu("S08H","BOX",hFrameMaterial,hFramepar,3);
1e8fff9c 860
861 // create the horizontal border volume
862
6c5ddcfa 863 gMC->Gsvolu("S07B","BOX",bFrameMaterial,bFramepar,3);
864 gMC->Gsvolu("S08B","BOX",bFrameMaterial,bFramepar,3);
1e8fff9c 865
6c5ddcfa 866 for (i = 0; i<nSlats4; i++){
867 sprintf(volNam7,"S07%d",i);
868 sprintf(volNam8,"S08%d",i);
869 Float_t xvFrame = (slatLength4[i] - vFrameLength)/2.;
870 gMC->Gspos("S07V",2*i-1,volNam7, xvFrame, 0., 0. , 0, "ONLY");
871 gMC->Gspos("S07V",2*i ,volNam7,-xvFrame, 0., 0. , 0, "ONLY");
872 gMC->Gspos("S08V",2*i-1,volNam8, xvFrame, 0., 0. , 0, "ONLY");
873 gMC->Gspos("S08V",2*i ,volNam8,-xvFrame, 0., 0. , 0, "ONLY");
874 for (j=0; j<nPCB4[i]; j++){
1e8fff9c 875 index++;
6c5ddcfa 876 Float_t xx = sensLength * (-nPCB4[i]/2.+j+.5);
1e8fff9c 877 Float_t yy = 0.;
878 Float_t zSens = 0.;
6c5ddcfa 879 gMC->Gspos("S07G",index,volNam7, xx, yy, zSens , 0, "ONLY");
880 gMC->Gspos("S08G",index,volNam8, xx, yy, zSens , 0, "ONLY");
881 Float_t zPCB = (sensWidth+pcbWidth)/2.;
882 gMC->Gspos("S07P",2*index-1,volNam7, xx, yy, zPCB , 0, "ONLY");
883 gMC->Gspos("S07P",2*index ,volNam7, xx, yy,-zPCB , 0, "ONLY");
884 gMC->Gspos("S08P",2*index-1,volNam8, xx, yy, zPCB , 0, "ONLY");
885 gMC->Gspos("S08P",2*index ,volNam8, xx, yy,-zPCB , 0, "ONLY");
886 Float_t zInsu = (insuWidth+pcbWidth)/2. + zPCB;
887 gMC->Gspos("S07I",2*index-1,volNam7, xx, yy, zInsu , 0, "ONLY");
888 gMC->Gspos("S07I",2*index ,volNam7, xx, yy,-zInsu , 0, "ONLY");
889 gMC->Gspos("S08I",2*index-1,volNam8, xx, yy, zInsu , 0, "ONLY");
890 gMC->Gspos("S08I",2*index ,volNam8, xx, yy,-zInsu , 0, "ONLY");
891 Float_t zPanel1 = (insuWidth+panelWidth)/2. + zInsu;
892 gMC->Gspos("S07C",4*index-3,volNam7, xx, yy, zPanel1 , 0, "ONLY");
893 gMC->Gspos("S07C",4*index-2,volNam7, xx, yy,-zPanel1 , 0, "ONLY");
894 gMC->Gspos("S08C",4*index-3,volNam8, xx, yy, zPanel1 , 0, "ONLY");
895 gMC->Gspos("S08C",4*index-2,volNam8, xx, yy,-zPanel1 , 0, "ONLY");
896 Float_t zRoha = (rohaWidth+panelWidth)/2. + zPanel1;
897 gMC->Gspos("S07R",2*index-1,volNam7, xx, yy, zRoha , 0, "ONLY");
898 gMC->Gspos("S07R",2*index ,volNam7, xx, yy,-zRoha , 0, "ONLY");
899 gMC->Gspos("S08R",2*index-1,volNam8, xx, yy, zRoha , 0, "ONLY");
900 gMC->Gspos("S08R",2*index ,volNam8, xx, yy,-zRoha , 0, "ONLY");
901 Float_t zPanel2 = (rohaWidth+panelWidth)/2. + zRoha;
902 gMC->Gspos("S07C",4*index-1,volNam7, xx, yy, zPanel2 , 0, "ONLY");
903 gMC->Gspos("S07C",4*index ,volNam7, xx, yy,-zPanel2 , 0, "ONLY");
904 gMC->Gspos("S08C",4*index-1,volNam8, xx, yy, zPanel2 , 0, "ONLY");
905 gMC->Gspos("S08C",4*index ,volNam8, xx, yy,-zPanel2 , 0, "ONLY");
906 Float_t yframe = (sensHeight + hFrameHeight)/2.;
907 gMC->Gspos("S07H",2*index-1,volNam7, xx, yframe, 0. , 0, "ONLY");
908 gMC->Gspos("S07H",2*index ,volNam7, xx,-yframe, 0. , 0, "ONLY");
909 gMC->Gspos("S08H",2*index-1,volNam8, xx, yframe, 0. , 0, "ONLY");
910 gMC->Gspos("S08H",2*index ,volNam8, xx,-yframe, 0. , 0, "ONLY");
911 Float_t yborder = (bFrameHeight + hFrameHeight)/2. + yframe;
912 gMC->Gspos("S07B",2*index-1,volNam7, xx, yborder, 0. , 0, "ONLY");
913 gMC->Gspos("S07B",2*index ,volNam7, xx,-yborder, 0. , 0, "ONLY");
914 gMC->Gspos("S08B",2*index-1,volNam8, xx, yborder, 0. , 0, "ONLY");
915 gMC->Gspos("S08B",2*index ,volNam8, xx,-yborder, 0. , 0, "ONLY");
1e8fff9c 916 }
a9e2aefa 917 }
1e8fff9c 918
919 // create the NULOC volume and position it in the horizontal frame
920
6c5ddcfa 921 gMC->Gsvolu("S07N","BOX",nulocMaterial,nulocpar,3);
922 gMC->Gsvolu("S08N","BOX",nulocMaterial,nulocpar,3);
1e8fff9c 923
924
925 index = 0;
6c5ddcfa 926 for (xx = -xxmax; xx<=xxmax; xx+=3*nulocLength) {
1e8fff9c 927 index++;
6c5ddcfa 928 gMC->Gspos("S07N",2*index-1,"S07B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
929 gMC->Gspos("S07N",2*index ,"S07B", xx, 0., bFrameWidth/4., 0, "ONLY");
930 gMC->Gspos("S08N",2*index-1,"S08B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
931 gMC->Gspos("S08N",2*index ,"S08B", xx, 0., bFrameWidth/4., 0, "ONLY");
1e8fff9c 932 }
933
934 // create the gassiplex volume
935
6c5ddcfa 936 gMC->Gsvolu("S07E","BOX",gassiMaterial,gassipar,3);
937 gMC->Gsvolu("S08E","BOX",gassiMaterial,gassipar,3);
1e8fff9c 938
939
940 // position 4 gassiplex in the nuloc
941
6c5ddcfa 942 gMC->Gspos("S07E",1,"S07N", 0., -3 * nulocHeight/8., 0. , 0, "ONLY");
943 gMC->Gspos("S07E",2,"S07N", 0., - nulocHeight/8., 0. , 0, "ONLY");
944 gMC->Gspos("S07E",3,"S07N", 0., nulocHeight/8., 0. , 0, "ONLY");
945 gMC->Gspos("S07E",4,"S07N", 0., 3 * nulocHeight/8., 0. , 0, "ONLY");
946 gMC->Gspos("S08E",1,"S08N", 0., -3 * nulocHeight/8., 0. , 0, "ONLY");
947 gMC->Gspos("S08E",2,"S08N", 0., - nulocHeight/8., 0. , 0, "ONLY");
948 gMC->Gspos("S08E",3,"S08N", 0., nulocHeight/8., 0. , 0, "ONLY");
949 gMC->Gspos("S08E",4,"S08N", 0., 3 * nulocHeight/8., 0. , 0, "ONLY");
1e8fff9c 950
951
952
a9e2aefa 953//********************************************************************
954// Station 5 **
955//********************************************************************
956 // indices 1 and 2 for first and second chambers in the station
957 // iChamber (first chamber) kept for other quanties than Z,
958 // assumed to be the same in both chambers
959 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[8];
960 iChamber2 =(AliMUONChamber*) (*fChambers)[9];
961 zpos1=iChamber1->Z();
962 zpos2=iChamber2->Z();
963 dstation = zpos2 - zpos1;
964 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
965
966//
967// Mother volume
968 tpar[0] = iChamber->RInner()-dframep;
969 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
970 tpar[2] = dstation/4;
971
972 gMC->Gsvolu("C09M", "TUBE", idAir, tpar, 3);
973 gMC->Gsvolu("C10M", "TUBE", idAir, tpar, 3);
974 gMC->Gspos("C09M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
975 gMC->Gspos("C10M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
a9e2aefa 976
a9e2aefa 977
1e8fff9c 978 const Int_t nSlats5 = 7; // number of slats per quadrant
f9f7c205 979 const Int_t nPCB5[nSlats5] = {7,7,6,6,5,4,2}; // n PCB per slat
1e8fff9c 980
981 // slat dimensions: slat is a MOTHER volume!!! made of air
6c5ddcfa 982 Float_t slatLength5[nSlats5];
6c5ddcfa 983 char volNam9[5];
984 char volNam10[5];
f9f7c205 985 Float_t xSlat5;
986 Float_t ySlat5;
1e8fff9c 987
6c5ddcfa 988 for (i = 0; i<nSlats5; i++){
989 slatLength5[i] = pcbLength * nPCB5[i] + 2. * dSlatLength;
f9f7c205 990 xSlat5 = slatLength5[i]/2. + vFrameLength/2.;
991 if (i==0) xSlat5 += 37.5;
992 ySlat5 = sensHeight * i - yOverlap * i;
6c5ddcfa 993 spar[0] = slatLength5[i]/2.;
994 spar[1] = slatHeight/2.;
995 spar[2] = slatWidth/2.;
1e8fff9c 996 // zSlat to be checked (odd downstream or upstream?)
6c5ddcfa 997 Float_t zSlat = (i%2 ==0)? -slatWidth/2. : slatWidth/2.;
998 sprintf(volNam9,"S09%d",i);
999 gMC->Gsvolu(volNam9,"BOX",slatMaterial,spar,3);
f9f7c205 1000 gMC->Gspos(volNam9, i*4+1,"C09M", xSlat5, ySlat5, zSlat, 0, "ONLY");
1001 gMC->Gspos(volNam9, i*4+2,"C09M",-xSlat5, ySlat5, zSlat, 0, "ONLY");
1002 if (i>0) {
1003 gMC->Gspos(volNam9, i*4+3,"C09M", xSlat5,-ySlat5, zSlat, 0, "ONLY");
1004 gMC->Gspos(volNam9, i*4+4,"C09M",-xSlat5,-ySlat5, zSlat, 0, "ONLY");
1005 }
6c5ddcfa 1006 sprintf(volNam10,"S10%d",i);
1007 gMC->Gsvolu(volNam10,"BOX",slatMaterial,spar,3);
f9f7c205 1008 gMC->Gspos(volNam10, i*4+1,"C10M", xSlat5, ySlat5, zSlat, 0, "ONLY");
1009 gMC->Gspos(volNam10, i*4+2,"C10M",-xSlat5, ySlat5, zSlat, 0, "ONLY");
1010 if (i>0) {
1011 gMC->Gspos(volNam10, i*4+3,"C10M", xSlat5,-ySlat5, zSlat, 0, "ONLY");
1012 gMC->Gspos(volNam10, i*4+4,"C10M",-xSlat5,-ySlat5, zSlat, 0, "ONLY");
1013 }
a9e2aefa 1014 }
1015
1e8fff9c 1016 // create the sensitive volumes (subdivided as the PCBs),
1017
6c5ddcfa 1018 gMC->Gsvolu("S09G","BOX",sensMaterial,sensPar,3);
1019 gMC->Gsvolu("S10G","BOX",sensMaterial,sensPar,3);
a9e2aefa 1020
1e8fff9c 1021 // create the PCB volume
1022
6c5ddcfa 1023 gMC->Gsvolu("S09P","BOX",pcbMaterial,pcbpar,3);
1024 gMC->Gsvolu("S10P","BOX",pcbMaterial,pcbpar,3);
1e8fff9c 1025
1026 // create the insulating material volume
1027
6c5ddcfa 1028 gMC->Gsvolu("S09I","BOX",insuMaterial,insupar,3);
1029 gMC->Gsvolu("S10I","BOX",insuMaterial,insupar,3);
1e8fff9c 1030
1031 // create the panel volume
1032
6c5ddcfa 1033 gMC->Gsvolu("S09C","BOX",panelMaterial,panelpar,3);
1034 gMC->Gsvolu("S10C","BOX",panelMaterial,panelpar,3);
1e8fff9c 1035
1036 // create the rohacell volume
1037
6c5ddcfa 1038 gMC->Gsvolu("S09R","BOX",rohaMaterial,rohapar,3);
1039 gMC->Gsvolu("S10R","BOX",rohaMaterial,rohapar,3);
1e8fff9c 1040
1041 // create the vertical frame volume
1042
6c5ddcfa 1043 gMC->Gsvolu("S09V","BOX",vFrameMaterial,vFramepar,3);
1044 gMC->Gsvolu("S10V","BOX",vFrameMaterial,vFramepar,3);
1e8fff9c 1045
1046 // create the horizontal frame volume
1047
6c5ddcfa 1048 gMC->Gsvolu("S09H","BOX",hFrameMaterial,hFramepar,3);
1049 gMC->Gsvolu("S10H","BOX",hFrameMaterial,hFramepar,3);
1e8fff9c 1050
1051 // create the horizontal border volume
1052
6c5ddcfa 1053 gMC->Gsvolu("S09B","BOX",bFrameMaterial,bFramepar,3);
1054 gMC->Gsvolu("S10B","BOX",bFrameMaterial,bFramepar,3);
1e8fff9c 1055
1056
6c5ddcfa 1057 for (i = 0; i<nSlats5; i++){
1058 sprintf(volNam9,"S09%d",i);
1059 sprintf(volNam10,"S10%d",i);
1060 Float_t xvFrame = (slatLength5[i] - vFrameLength)/2.;
1061 gMC->Gspos("S09V",2*i-1,volNam9, xvFrame, 0., 0. , 0, "ONLY");
1062 gMC->Gspos("S09V",2*i ,volNam9,-xvFrame, 0., 0. , 0, "ONLY");
1063 gMC->Gspos("S10V",2*i-1,volNam10, xvFrame, 0., 0. , 0, "ONLY");
1064 gMC->Gspos("S10V",2*i ,volNam10,-xvFrame, 0., 0. , 0, "ONLY");
1065 for (j=0; j<nPCB5[i]; j++){
1e8fff9c 1066 index++;
6c5ddcfa 1067 Float_t xx = sensLength * (-nPCB5[i]/2.+j+.5);
1e8fff9c 1068 Float_t yy = 0.;
1069 Float_t zSens = 0.;
6c5ddcfa 1070 gMC->Gspos("S09G",index,volNam9, xx, yy, zSens , 0, "ONLY");
1071 gMC->Gspos("S10G",index,volNam10, xx, yy, zSens , 0, "ONLY");
1072 Float_t zPCB = (sensWidth+pcbWidth)/2.;
1073 gMC->Gspos("S09P",2*index-1,volNam9, xx, yy, zPCB , 0, "ONLY");
1074 gMC->Gspos("S09P",2*index ,volNam9, xx, yy,-zPCB , 0, "ONLY");
1075 gMC->Gspos("S10P",2*index-1,volNam10, xx, yy, zPCB , 0, "ONLY");
1076 gMC->Gspos("S10P",2*index ,volNam10, xx, yy,-zPCB , 0, "ONLY");
1077 Float_t zInsu = (insuWidth+pcbWidth)/2. + zPCB;
1078 gMC->Gspos("S09I",2*index-1,volNam9, xx, yy, zInsu , 0, "ONLY");
1079 gMC->Gspos("S09I",2*index ,volNam9, xx, yy,-zInsu , 0, "ONLY");
1080 gMC->Gspos("S10I",2*index-1,volNam10, xx, yy, zInsu , 0, "ONLY");
1081 gMC->Gspos("S10I",2*index ,volNam10, xx, yy,-zInsu , 0, "ONLY");
1082 Float_t zPanel1 = (insuWidth+panelWidth)/2. + zInsu;
1083 gMC->Gspos("S09C",4*index-3,volNam9, xx, yy, zPanel1 , 0, "ONLY");
1084 gMC->Gspos("S09C",4*index-2,volNam9, xx, yy,-zPanel1 , 0, "ONLY");
1085 gMC->Gspos("S10C",4*index-3,volNam10, xx, yy, zPanel1 , 0, "ONLY");
1086 gMC->Gspos("S10C",4*index-2,volNam10, xx, yy,-zPanel1 , 0, "ONLY");
1087 Float_t zRoha = (rohaWidth+panelWidth)/2. + zPanel1;
1088 gMC->Gspos("S09R",2*index-1,volNam9, xx, yy, zRoha , 0, "ONLY");
1089 gMC->Gspos("S09R",2*index ,volNam9, xx, yy,-zRoha , 0, "ONLY");
1090 gMC->Gspos("S10R",2*index-1,volNam10, xx, yy, zRoha , 0, "ONLY");
1091 gMC->Gspos("S10R",2*index ,volNam10, xx, yy,-zRoha , 0, "ONLY");
1092 Float_t zPanel2 = (rohaWidth+panelWidth)/2. + zRoha;
1093 gMC->Gspos("S09C",4*index-1,volNam9, xx, yy, zPanel2 , 0, "ONLY");
1094 gMC->Gspos("S09C",4*index ,volNam9, xx, yy,-zPanel2 , 0, "ONLY");
1095 gMC->Gspos("S10C",4*index-1,volNam10, xx, yy, zPanel2 , 0, "ONLY");
1096 gMC->Gspos("S10C",4*index ,volNam10, xx, yy,-zPanel2 , 0, "ONLY");
1097 Float_t yframe = (sensHeight + hFrameHeight)/2.;
1098 gMC->Gspos("S09H",2*index-1,volNam9, xx, yframe, 0. , 0, "ONLY");
1099 gMC->Gspos("S09H",2*index ,volNam9, xx,-yframe, 0. , 0, "ONLY");
1100 gMC->Gspos("S10H",2*index-1,volNam10, xx, yframe, 0. , 0, "ONLY");
1101 gMC->Gspos("S10H",2*index ,volNam10, xx,-yframe, 0. , 0, "ONLY");
1102 Float_t yborder = (bFrameHeight + hFrameHeight)/2. + yframe;
1103 gMC->Gspos("S09B",2*index-1,volNam9, xx, yborder, 0. , 0, "ONLY");
1104 gMC->Gspos("S09B",2*index ,volNam9, xx,-yborder, 0. , 0, "ONLY");
1105 gMC->Gspos("S10B",2*index-1,volNam10, xx, yborder, 0. , 0, "ONLY");
1106 gMC->Gspos("S10B",2*index ,volNam10, xx,-yborder, 0. , 0, "ONLY");
1e8fff9c 1107 }
1108 }
1109
1110 // create the NULOC volume and position it in the horizontal frame
1111
6c5ddcfa 1112 gMC->Gsvolu("S09N","BOX",nulocMaterial,nulocpar,3);
1113 gMC->Gsvolu("S10N","BOX",nulocMaterial,nulocpar,3);
1e8fff9c 1114
1115 index = 0;
6c5ddcfa 1116 for (xx = -xxmax; xx<=xxmax; xx+=3*nulocLength) {
1e8fff9c 1117 index++;
6c5ddcfa 1118 gMC->Gspos("S09N",2*index-1,"S09B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1119 gMC->Gspos("S09N",2*index ,"S09B", xx, 0., bFrameWidth/4., 0, "ONLY");
1120 gMC->Gspos("S10N",2*index-1,"S10B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1121 gMC->Gspos("S10N",2*index ,"S10B", xx, 0., bFrameWidth/4., 0, "ONLY");
a9e2aefa 1122 }
1123
1e8fff9c 1124 // create the gassiplex volume
1125
6c5ddcfa 1126 gMC->Gsvolu("S09E","BOX",gassiMaterial,gassipar,3);
1127 gMC->Gsvolu("S10E","BOX",gassiMaterial,gassipar,3);
1e8fff9c 1128
1129
1130 // position 4 gassiplex in the nuloc
1131
6c5ddcfa 1132 gMC->Gspos("S09E",1,"S09N", 0., -3 * nulocHeight/8., 0. , 0, "ONLY");
1133 gMC->Gspos("S09E",2,"S09N", 0., - nulocHeight/8., 0. , 0, "ONLY");
1134 gMC->Gspos("S09E",3,"S09N", 0., nulocHeight/8., 0. , 0, "ONLY");
1135 gMC->Gspos("S09E",4,"S09N", 0., 3 * nulocHeight/8., 0. , 0, "ONLY");
1136 gMC->Gspos("S10E",1,"S10N", 0., -3 * nulocHeight/8., 0. , 0, "ONLY");
1137 gMC->Gspos("S10E",2,"S10N", 0., - nulocHeight/8., 0. , 0, "ONLY");
1138 gMC->Gspos("S10E",3,"S10N", 0., nulocHeight/8., 0. , 0, "ONLY");
1139 gMC->Gspos("S10E",4,"S10N", 0., 3 * nulocHeight/8., 0. , 0, "ONLY");
1e8fff9c 1140
1141
a9e2aefa 1142///////////////////////////////////////
1143// GEOMETRY FOR THE TRIGGER CHAMBERS //
1144///////////////////////////////////////
1145
1146// 03/00 P. Dupieux : introduce a slighly more realistic
1147// geom. of the trigger readout planes with
1148// 2 Zpos per trigger plane (alternate
1149// between left and right of the trigger)
1150
1151// Parameters of the Trigger Chambers
1152
1153
1154 const Float_t kXMC1MIN=34.;
1155 const Float_t kXMC1MED=51.;
1156 const Float_t kXMC1MAX=272.;
1157 const Float_t kYMC1MIN=34.;
1158 const Float_t kYMC1MAX=51.;
1159 const Float_t kRMIN1=50.;
1160 const Float_t kRMAX1=62.;
1161 const Float_t kRMIN2=50.;
1162 const Float_t kRMAX2=66.;
1163
1164// zposition of the middle of the gas gap in mother vol
1165 const Float_t kZMCm=-3.6;
1166 const Float_t kZMCp=+3.6;
1167
1168
1169// TRIGGER STATION 1 - TRIGGER STATION 1 - TRIGGER STATION 1
1170
1171 // iChamber 1 and 2 for first and second chambers in the station
1172 // iChamber (first chamber) kept for other quanties than Z,
1173 // assumed to be the same in both chambers
1174 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[10];
1175 iChamber2 =(AliMUONChamber*) (*fChambers)[11];
1176
1177 // 03/00
1178 // zpos1 and zpos2 are now the middle of the first and second
1179 // plane of station 1 :
1180 // zpos1=(16075+15995)/2=16035 mm, thick/2=40 mm
1181 // zpos2=(16225+16145)/2=16185 mm, thick/2=40 mm
1182 //
1183 // zpos1m=15999 mm , zpos1p=16071 mm (middles of gas gaps)
1184 // zpos2m=16149 mm , zpos2p=16221 mm (middles of gas gaps)
1185 // rem : the total thickness accounts for 1 mm of al on both
1186 // side of the RPCs (see zpos1 and zpos2), as previously
1187
1188 zpos1=iChamber1->Z();
1189 zpos2=iChamber2->Z();
1190
1191
1192// Mother volume definition
1193 tpar[0] = iChamber->RInner();
1194 tpar[1] = iChamber->ROuter();
1195 tpar[2] = 4.0;
1196 gMC->Gsvolu("CM11", "TUBE", idAir, tpar, 3);
1197 gMC->Gsvolu("CM12", "TUBE", idAir, tpar, 3);
1198
1199// Definition of the flange between the beam shielding and the RPC
1200 tpar[0]= kRMIN1;
1201 tpar[1]= kRMAX1;
1202 tpar[2]= 4.0;
1203
1204 gMC->Gsvolu("CF1A", "TUBE", idAlu1, tpar, 3); //Al
1205 gMC->Gspos("CF1A", 1, "CM11", 0., 0., 0., 0, "MANY");
1206 gMC->Gspos("CF1A", 2, "CM12", 0., 0., 0., 0, "MANY");
1207
1208
1209// FIRST PLANE OF STATION 1
1210
1211// ratios of zpos1m/zpos1p and inverse for first plane
1212 Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
1213 Float_t zpm=1./zmp;
1214
1215
1216// Definition of prototype for chambers in the first plane
1217
1218 tpar[0]= 0.;
1219 tpar[1]= 0.;
1220 tpar[2]= 0.;
1221
1222 gMC->Gsvolu("CC1A", "BOX ", idAlu1, tpar, 0); //Al
1223 gMC->Gsvolu("CB1A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1224 gMC->Gsvolu("CG1A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1225
1226// chamber type A
1227 tpar[0] = -1.;
1228 tpar[1] = -1.;
1229
1230 const Float_t kXMC1A=kXMC1MED+(kXMC1MAX-kXMC1MED)/2.;
1231 const Float_t kYMC1Am=0.;
1232 const Float_t kYMC1Ap=0.;
1233
1234 tpar[2] = 0.1;
1235 gMC->Gsposp("CG1A", 1, "CB1A", 0., 0., 0., 0, "ONLY",tpar,3);
1236 tpar[2] = 0.3;
1237 gMC->Gsposp("CB1A", 1, "CC1A", 0., 0., 0., 0, "ONLY",tpar,3);
1238
1239 tpar[2] = 0.4;
1240 tpar[0] = (kXMC1MAX-kXMC1MED)/2.;
1241 tpar[1] = kYMC1MIN;
1242
1243 gMC->Gsposp("CC1A", 1, "CM11",kXMC1A,kYMC1Am,kZMCm, 0, "ONLY", tpar, 3);
1244 gMC->Gsposp("CC1A", 2, "CM11",-kXMC1A,kYMC1Ap,kZMCp, 0, "ONLY", tpar, 3);
1245
1246// chamber type B
1247 Float_t tpar1save=tpar[1];
1248 Float_t y1msave=kYMC1Am;
1249 Float_t y1psave=kYMC1Ap;
1250
1251 tpar[0] = (kXMC1MAX-kXMC1MIN)/2.;
1252 tpar[1] = (kYMC1MAX-kYMC1MIN)/2.;
1253
1254 const Float_t kXMC1B=kXMC1MIN+tpar[0];
1255 const Float_t kYMC1Bp=(y1msave+tpar1save)*zpm+tpar[1];
1256 const Float_t kYMC1Bm=(y1psave+tpar1save)*zmp+tpar[1];
1257
1258 gMC->Gsposp("CC1A", 3, "CM11",kXMC1B,kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
1259 gMC->Gsposp("CC1A", 4, "CM11",-kXMC1B,kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
1260 gMC->Gsposp("CC1A", 5, "CM11",kXMC1B,-kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
1261 gMC->Gsposp("CC1A", 6, "CM11",-kXMC1B,-kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
1262
1263// chamber type C (end of type B !!)
1264 tpar1save=tpar[1];
1265 y1msave=kYMC1Bm;
1266 y1psave=kYMC1Bp;
1267
1268 tpar[0] = kXMC1MAX/2;
1269 tpar[1] = kYMC1MAX/2;
1270
1271 const Float_t kXMC1C=tpar[0];
1272// warning : same Z than type B
1273 const Float_t kYMC1Cp=(y1psave+tpar1save)*1.+tpar[1];
1274 const Float_t kYMC1Cm=(y1msave+tpar1save)*1.+tpar[1];
1275
1276 gMC->Gsposp("CC1A", 7, "CM11",kXMC1C,kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1277 gMC->Gsposp("CC1A", 8, "CM11",-kXMC1C,kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1278 gMC->Gsposp("CC1A", 9, "CM11",kXMC1C,-kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1279 gMC->Gsposp("CC1A", 10, "CM11",-kXMC1C,-kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1280
1281// chamber type D, E and F (same size)
1282 tpar1save=tpar[1];
1283 y1msave=kYMC1Cm;
1284 y1psave=kYMC1Cp;
1285
1286 tpar[0] = kXMC1MAX/2.;
1287 tpar[1] = kYMC1MIN;
1288
1289 const Float_t kXMC1D=tpar[0];
1290 const Float_t kYMC1Dp=(y1msave+tpar1save)*zpm+tpar[1];
1291 const Float_t kYMC1Dm=(y1psave+tpar1save)*zmp+tpar[1];
1292
1293 gMC->Gsposp("CC1A", 11, "CM11",kXMC1D,kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1294 gMC->Gsposp("CC1A", 12, "CM11",-kXMC1D,kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1295 gMC->Gsposp("CC1A", 13, "CM11",kXMC1D,-kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1296 gMC->Gsposp("CC1A", 14, "CM11",-kXMC1D,-kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1297
1298
1299 tpar1save=tpar[1];
1300 y1msave=kYMC1Dm;
1301 y1psave=kYMC1Dp;
1302 const Float_t kYMC1Ep=(y1msave+tpar1save)*zpm+tpar[1];
1303 const Float_t kYMC1Em=(y1psave+tpar1save)*zmp+tpar[1];
1304
1305 gMC->Gsposp("CC1A", 15, "CM11",kXMC1D,kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1306 gMC->Gsposp("CC1A", 16, "CM11",-kXMC1D,kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1307 gMC->Gsposp("CC1A", 17, "CM11",kXMC1D,-kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1308 gMC->Gsposp("CC1A", 18, "CM11",-kXMC1D,-kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1309
1310 tpar1save=tpar[1];
1311 y1msave=kYMC1Em;
1312 y1psave=kYMC1Ep;
1313 const Float_t kYMC1Fp=(y1msave+tpar1save)*zpm+tpar[1];
1314 const Float_t kYMC1Fm=(y1psave+tpar1save)*zmp+tpar[1];
1315
1316 gMC->Gsposp("CC1A", 19, "CM11",kXMC1D,kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1317 gMC->Gsposp("CC1A", 20, "CM11",-kXMC1D,kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1318 gMC->Gsposp("CC1A", 21, "CM11",kXMC1D,-kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1319 gMC->Gsposp("CC1A", 22, "CM11",-kXMC1D,-kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1320
1321// Positioning first plane in ALICE
1322 gMC->Gspos("CM11", 1, "ALIC", 0., 0., zpos1, 0, "ONLY");
1323
1324// End of geometry definition for the first plane of station 1
1325
1326
1327
1328// SECOND PLANE OF STATION 1 : proj ratio = zpos2/zpos1
1329
1330 const Float_t kZ12=zpos2/zpos1;
1331
1332// Definition of prototype for chambers in the second plane of station 1
1333
1334 tpar[0]= 0.;
1335 tpar[1]= 0.;
1336 tpar[2]= 0.;
1337
1338 gMC->Gsvolu("CC2A", "BOX ", idAlu1, tpar, 0); //Al
1339 gMC->Gsvolu("CB2A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1340 gMC->Gsvolu("CG2A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1341
1342// chamber type A
1343 tpar[0] = -1.;
1344 tpar[1] = -1.;
1345
1346 const Float_t kXMC2A=kXMC1A*kZ12;
1347 const Float_t kYMC2Am=0.;
1348 const Float_t kYMC2Ap=0.;
1349
1350 tpar[2] = 0.1;
1351 gMC->Gsposp("CG2A", 1, "CB2A", 0., 0., 0., 0, "ONLY",tpar,3);
1352 tpar[2] = 0.3;
1353 gMC->Gsposp("CB2A", 1, "CC2A", 0., 0., 0., 0, "ONLY",tpar,3);
1354
1355 tpar[2] = 0.4;
1356 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ12;
1357 tpar[1] = kYMC1MIN*kZ12;
1358
1359 gMC->Gsposp("CC2A", 1, "CM12",kXMC2A,kYMC2Am,kZMCm, 0, "ONLY", tpar, 3);
1360 gMC->Gsposp("CC2A", 2, "CM12",-kXMC2A,kYMC2Ap,kZMCp, 0, "ONLY", tpar, 3);
1361
1362
1363// chamber type B
1364
1365 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ12;
1366 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ12;
1367
1368 const Float_t kXMC2B=kXMC1B*kZ12;
1369 const Float_t kYMC2Bp=kYMC1Bp*kZ12;
1370 const Float_t kYMC2Bm=kYMC1Bm*kZ12;
1371 gMC->Gsposp("CC2A", 3, "CM12",kXMC2B,kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1372 gMC->Gsposp("CC2A", 4, "CM12",-kXMC2B,kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1373 gMC->Gsposp("CC2A", 5, "CM12",kXMC2B,-kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1374 gMC->Gsposp("CC2A", 6, "CM12",-kXMC2B,-kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1375
1376
1377// chamber type C (end of type B !!)
1378
1379 tpar[0] = (kXMC1MAX/2)*kZ12;
1380 tpar[1] = (kYMC1MAX/2)*kZ12;
1381
1382 const Float_t kXMC2C=kXMC1C*kZ12;
1383 const Float_t kYMC2Cp=kYMC1Cp*kZ12;
1384 const Float_t kYMC2Cm=kYMC1Cm*kZ12;
1385 gMC->Gsposp("CC2A", 7, "CM12",kXMC2C,kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1386 gMC->Gsposp("CC2A", 8, "CM12",-kXMC2C,kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1387 gMC->Gsposp("CC2A", 9, "CM12",kXMC2C,-kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1388 gMC->Gsposp("CC2A", 10, "CM12",-kXMC2C,-kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1389
1390// chamber type D, E and F (same size)
1391
1392 tpar[0] = (kXMC1MAX/2.)*kZ12;
1393 tpar[1] = kYMC1MIN*kZ12;
1394
1395 const Float_t kXMC2D=kXMC1D*kZ12;
1396 const Float_t kYMC2Dp=kYMC1Dp*kZ12;
1397 const Float_t kYMC2Dm=kYMC1Dm*kZ12;
1398 gMC->Gsposp("CC2A", 11, "CM12",kXMC2D,kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1399 gMC->Gsposp("CC2A", 12, "CM12",-kXMC2D,kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1400 gMC->Gsposp("CC2A", 13, "CM12",kXMC2D,-kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1401 gMC->Gsposp("CC2A", 14, "CM12",-kXMC2D,-kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1402
1403 const Float_t kYMC2Ep=kYMC1Ep*kZ12;
1404 const Float_t kYMC2Em=kYMC1Em*kZ12;
1405 gMC->Gsposp("CC2A", 15, "CM12",kXMC2D,kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1406 gMC->Gsposp("CC2A", 16, "CM12",-kXMC2D,kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1407 gMC->Gsposp("CC2A", 17, "CM12",kXMC2D,-kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1408 gMC->Gsposp("CC2A", 18, "CM12",-kXMC2D,-kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1409
1410
1411 const Float_t kYMC2Fp=kYMC1Fp*kZ12;
1412 const Float_t kYMC2Fm=kYMC1Fm*kZ12;
1413 gMC->Gsposp("CC2A", 19, "CM12",kXMC2D,kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1414 gMC->Gsposp("CC2A", 20, "CM12",-kXMC2D,kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1415 gMC->Gsposp("CC2A", 21, "CM12",kXMC2D,-kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1416 gMC->Gsposp("CC2A", 22, "CM12",-kXMC2D,-kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1417
1418// Positioning second plane of station 1 in ALICE
1419
1420 gMC->Gspos("CM12", 1, "ALIC", 0., 0., zpos2, 0, "ONLY");
1421
1422// End of geometry definition for the second plane of station 1
1423
1424
1425
1426// TRIGGER STATION 2 - TRIGGER STATION 2 - TRIGGER STATION 2
1427
1428 // 03/00
1429 // zpos3 and zpos4 are now the middle of the first and second
1430 // plane of station 2 :
1431 // zpos3=(17075+16995)/2=17035 mm, thick/2=40 mm
1432 // zpos4=(17225+17145)/2=17185 mm, thick/2=40 mm
1433 //
1434 // zpos3m=16999 mm , zpos3p=17071 mm (middles of gas gaps)
1435 // zpos4m=17149 mm , zpos4p=17221 mm (middles of gas gaps)
1436 // rem : the total thickness accounts for 1 mm of al on both
1437 // side of the RPCs (see zpos3 and zpos4), as previously
1438 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[12];
1439 iChamber2 =(AliMUONChamber*) (*fChambers)[13];
1440 Float_t zpos3=iChamber1->Z();
1441 Float_t zpos4=iChamber2->Z();
1442
1443
1444// Mother volume definition
1445 tpar[0] = iChamber->RInner();
1446 tpar[1] = iChamber->ROuter();
1447 tpar[2] = 4.0;
1448
1449 gMC->Gsvolu("CM21", "TUBE", idAir, tpar, 3);
1450 gMC->Gsvolu("CM22", "TUBE", idAir, tpar, 3);
1451
1452// Definition of the flange between the beam shielding and the RPC
1453// ???? interface shielding
1454
1455 tpar[0]= kRMIN2;
1456 tpar[1]= kRMAX2;
1457 tpar[2]= 4.0;
1458
1459 gMC->Gsvolu("CF2A", "TUBE", idAlu1, tpar, 3); //Al
1460 gMC->Gspos("CF2A", 1, "CM21", 0., 0., 0., 0, "MANY");
1461 gMC->Gspos("CF2A", 2, "CM22", 0., 0., 0., 0, "MANY");
1462
1463
1464
1465// FIRST PLANE OF STATION 2 : proj ratio = zpos3/zpos1
1466
1467 const Float_t kZ13=zpos3/zpos1;
1468
1469// Definition of prototype for chambers in the first plane of station 2
1470 tpar[0]= 0.;
1471 tpar[1]= 0.;
1472 tpar[2]= 0.;
1473
1474 gMC->Gsvolu("CC3A", "BOX ", idAlu1, tpar, 0); //Al
1475 gMC->Gsvolu("CB3A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1476 gMC->Gsvolu("CG3A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1477
1478
1479// chamber type A
1480 tpar[0] = -1.;
1481 tpar[1] = -1.;
1482
1483 const Float_t kXMC3A=kXMC1A*kZ13;
1484 const Float_t kYMC3Am=0.;
1485 const Float_t kYMC3Ap=0.;
1486
1487 tpar[2] = 0.1;
1488 gMC->Gsposp("CG3A", 1, "CB3A", 0., 0., 0., 0, "ONLY",tpar,3);
1489 tpar[2] = 0.3;
1490 gMC->Gsposp("CB3A", 1, "CC3A", 0., 0., 0., 0, "ONLY",tpar,3);
1491
1492 tpar[2] = 0.4;
1493 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ13;
1494 tpar[1] = kYMC1MIN*kZ13;
1495 gMC->Gsposp("CC3A", 1, "CM21",kXMC3A,kYMC3Am,kZMCm, 0, "ONLY", tpar, 3);
1496 gMC->Gsposp("CC3A", 2, "CM21",-kXMC3A,kYMC3Ap,kZMCp, 0, "ONLY", tpar, 3);
1497
1498
1499// chamber type B
1500 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ13;
1501 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ13;
1502
1503 const Float_t kXMC3B=kXMC1B*kZ13;
1504 const Float_t kYMC3Bp=kYMC1Bp*kZ13;
1505 const Float_t kYMC3Bm=kYMC1Bm*kZ13;
1506 gMC->Gsposp("CC3A", 3, "CM21",kXMC3B,kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1507 gMC->Gsposp("CC3A", 4, "CM21",-kXMC3B,kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1508 gMC->Gsposp("CC3A", 5, "CM21",kXMC3B,-kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1509 gMC->Gsposp("CC3A", 6, "CM21",-kXMC3B,-kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1510
1511
1512// chamber type C (end of type B !!)
1513 tpar[0] = (kXMC1MAX/2)*kZ13;
1514 tpar[1] = (kYMC1MAX/2)*kZ13;
1515
1516 const Float_t kXMC3C=kXMC1C*kZ13;
1517 const Float_t kYMC3Cp=kYMC1Cp*kZ13;
1518 const Float_t kYMC3Cm=kYMC1Cm*kZ13;
1519 gMC->Gsposp("CC3A", 7, "CM21",kXMC3C,kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1520 gMC->Gsposp("CC3A", 8, "CM21",-kXMC3C,kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1521 gMC->Gsposp("CC3A", 9, "CM21",kXMC3C,-kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1522 gMC->Gsposp("CC3A", 10, "CM21",-kXMC3C,-kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1523
1524
1525// chamber type D, E and F (same size)
1526
1527 tpar[0] = (kXMC1MAX/2.)*kZ13;
1528 tpar[1] = kYMC1MIN*kZ13;
1529
1530 const Float_t kXMC3D=kXMC1D*kZ13;
1531 const Float_t kYMC3Dp=kYMC1Dp*kZ13;
1532 const Float_t kYMC3Dm=kYMC1Dm*kZ13;
1533 gMC->Gsposp("CC3A", 11, "CM21",kXMC3D,kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1534 gMC->Gsposp("CC3A", 12, "CM21",-kXMC3D,kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1535 gMC->Gsposp("CC3A", 13, "CM21",kXMC3D,-kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1536 gMC->Gsposp("CC3A", 14, "CM21",-kXMC3D,-kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1537
1538 const Float_t kYMC3Ep=kYMC1Ep*kZ13;
1539 const Float_t kYMC3Em=kYMC1Em*kZ13;
1540 gMC->Gsposp("CC3A", 15, "CM21",kXMC3D,kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1541 gMC->Gsposp("CC3A", 16, "CM21",-kXMC3D,kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1542 gMC->Gsposp("CC3A", 17, "CM21",kXMC3D,-kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1543 gMC->Gsposp("CC3A", 18, "CM21",-kXMC3D,-kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1544
1545 const Float_t kYMC3Fp=kYMC1Fp*kZ13;
1546 const Float_t kYMC3Fm=kYMC1Fm*kZ13;
1547 gMC->Gsposp("CC3A", 19, "CM21",kXMC3D,kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1548 gMC->Gsposp("CC3A", 20, "CM21",-kXMC3D,kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1549 gMC->Gsposp("CC3A", 21, "CM21",kXMC3D,-kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1550 gMC->Gsposp("CC3A", 22, "CM21",-kXMC3D,-kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1551
1552
1553// Positioning first plane of station 2 in ALICE
1554
1555 gMC->Gspos("CM21", 1, "ALIC", 0., 0., zpos3, 0, "ONLY");
1556
1557// End of geometry definition for the first plane of station 2
1558
1559
1560
1561
1562// SECOND PLANE OF STATION 2 : proj ratio = zpos4/zpos1
1563
1564 const Float_t kZ14=zpos4/zpos1;
1565
1566// Definition of prototype for chambers in the second plane of station 2
1567
1568 tpar[0]= 0.;
1569 tpar[1]= 0.;
1570 tpar[2]= 0.;
1571
1572 gMC->Gsvolu("CC4A", "BOX ", idAlu1, tpar, 0); //Al
1573 gMC->Gsvolu("CB4A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1574 gMC->Gsvolu("CG4A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1575
1576// chamber type A
1577 tpar[0] = -1.;
1578 tpar[1] = -1.;
1579
1580 const Float_t kXMC4A=kXMC1A*kZ14;
1581 const Float_t kYMC4Am=0.;
1582 const Float_t kYMC4Ap=0.;
1583
1584 tpar[2] = 0.1;
1585 gMC->Gsposp("CG4A", 1, "CB4A", 0., 0., 0., 0, "ONLY",tpar,3);
1586 tpar[2] = 0.3;
1587 gMC->Gsposp("CB4A", 1, "CC4A", 0., 0., 0., 0, "ONLY",tpar,3);
1588
1589 tpar[2] = 0.4;
1590 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ14;
1591 tpar[1] = kYMC1MIN*kZ14;
1592 gMC->Gsposp("CC4A", 1, "CM22",kXMC4A,kYMC4Am,kZMCm, 0, "ONLY", tpar, 3);
1593 gMC->Gsposp("CC4A", 2, "CM22",-kXMC4A,kYMC4Ap,kZMCp, 0, "ONLY", tpar, 3);
1594
1595
1596// chamber type B
1597 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ14;
1598 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ14;
1599
1600 const Float_t kXMC4B=kXMC1B*kZ14;
1601 const Float_t kYMC4Bp=kYMC1Bp*kZ14;
1602 const Float_t kYMC4Bm=kYMC1Bm*kZ14;
1603 gMC->Gsposp("CC4A", 3, "CM22",kXMC4B,kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1604 gMC->Gsposp("CC4A", 4, "CM22",-kXMC4B,kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1605 gMC->Gsposp("CC4A", 5, "CM22",kXMC4B,-kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1606 gMC->Gsposp("CC4A", 6, "CM22",-kXMC4B,-kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1607
1608
1609// chamber type C (end of type B !!)
1610 tpar[0] =(kXMC1MAX/2)*kZ14;
1611 tpar[1] = (kYMC1MAX/2)*kZ14;
1612
1613 const Float_t kXMC4C=kXMC1C*kZ14;
1614 const Float_t kYMC4Cp=kYMC1Cp*kZ14;
1615 const Float_t kYMC4Cm=kYMC1Cm*kZ14;
1616 gMC->Gsposp("CC4A", 7, "CM22",kXMC4C,kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1617 gMC->Gsposp("CC4A", 8, "CM22",-kXMC4C,kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1618 gMC->Gsposp("CC4A", 9, "CM22",kXMC4C,-kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1619 gMC->Gsposp("CC4A", 10, "CM22",-kXMC4C,-kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1620
1621
1622// chamber type D, E and F (same size)
1623 tpar[0] = (kXMC1MAX/2.)*kZ14;
1624 tpar[1] = kYMC1MIN*kZ14;
1625
1626 const Float_t kXMC4D=kXMC1D*kZ14;
1627 const Float_t kYMC4Dp=kYMC1Dp*kZ14;
1628 const Float_t kYMC4Dm=kYMC1Dm*kZ14;
1629 gMC->Gsposp("CC4A", 11, "CM22",kXMC4D,kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1630 gMC->Gsposp("CC4A", 12, "CM22",-kXMC4D,kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1631 gMC->Gsposp("CC4A", 13, "CM22",kXMC4D,-kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1632 gMC->Gsposp("CC4A", 14, "CM22",-kXMC4D,-kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1633
1634 const Float_t kYMC4Ep=kYMC1Ep*kZ14;
1635 const Float_t kYMC4Em=kYMC1Em*kZ14;
1636 gMC->Gsposp("CC4A", 15, "CM22",kXMC4D,kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1637 gMC->Gsposp("CC4A", 16, "CM22",-kXMC4D,kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1638 gMC->Gsposp("CC4A", 17, "CM22",kXMC4D,-kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1639 gMC->Gsposp("CC4A", 18, "CM22",-kXMC4D,-kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1640
1641 const Float_t kYMC4Fp=kYMC1Fp*kZ14;
1642 const Float_t kYMC4Fm=kYMC1Fm*kZ14;
1643 gMC->Gsposp("CC4A", 19, "CM22",kXMC4D,kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1644 gMC->Gsposp("CC4A", 20, "CM22",-kXMC4D,kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1645 gMC->Gsposp("CC4A", 21, "CM22",kXMC4D,-kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1646 gMC->Gsposp("CC4A", 22, "CM22",-kXMC4D,-kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1647
1648
1649// Positioning second plane of station 2 in ALICE
1650
1651 gMC->Gspos("CM22", 1, "ALIC", 0., 0., zpos4, 0, "ONLY");
1652
1653// End of geometry definition for the second plane of station 2
1654
1655// End of trigger geometry definition
1656
1657}
1658
1659
1660
1661//___________________________________________
1662void AliMUONv1::CreateMaterials()
1663{
1664 // *** DEFINITION OF AVAILABLE MUON MATERIALS ***
1665 //
1666 // Ar-CO2 gas
1667 Float_t ag1[3] = { 39.95,12.01,16. };
1668 Float_t zg1[3] = { 18.,6.,8. };
1669 Float_t wg1[3] = { .8,.0667,.13333 };
1670 Float_t dg1 = .001821;
1671 //
1672 // Ar-buthane-freon gas -- trigger chambers
1673 Float_t atr1[4] = { 39.95,12.01,1.01,19. };
1674 Float_t ztr1[4] = { 18.,6.,1.,9. };
1675 Float_t wtr1[4] = { .56,.1262857,.2857143,.028 };
1676 Float_t dtr1 = .002599;
1677 //
1678 // Ar-CO2 gas
1679 Float_t agas[3] = { 39.95,12.01,16. };
1680 Float_t zgas[3] = { 18.,6.,8. };
1681 Float_t wgas[3] = { .74,.086684,.173316 };
1682 Float_t dgas = .0018327;
1683 //
1684 // Ar-Isobutane gas (80%+20%) -- tracking
1685 Float_t ag[3] = { 39.95,12.01,1.01 };
1686 Float_t zg[3] = { 18.,6.,1. };
1687 Float_t wg[3] = { .8,.057,.143 };
1688 Float_t dg = .0019596;
1689 //
1690 // Ar-Isobutane-Forane-SF6 gas (49%+7%+40%+4%) -- trigger
1691 Float_t atrig[5] = { 39.95,12.01,1.01,19.,32.066 };
1692 Float_t ztrig[5] = { 18.,6.,1.,9.,16. };
1693 Float_t wtrig[5] = { .49,1.08,1.5,1.84,0.04 };
1694 Float_t dtrig = .0031463;
1695 //
1696 // bakelite
1697
1698 Float_t abak[3] = {12.01 , 1.01 , 16.};
1699 Float_t zbak[3] = {6. , 1. , 8.};
1700 Float_t wbak[3] = {6. , 6. , 1.};
1701 Float_t dbak = 1.4;
1702
1703 Float_t epsil, stmin, deemax, tmaxfd, stemax;
1704
1705 Int_t iSXFLD = gAlice->Field()->Integ();
1706 Float_t sXMGMX = gAlice->Field()->Max();
1707 //
1708 // --- Define the various materials for GEANT ---
1709 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1710 AliMaterial(10, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1711 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
1712 AliMixture(19, "Bakelite$", abak, zbak, dbak, -3, wbak);
1713 AliMixture(20, "ArC4H10 GAS$", ag, zg, dg, 3, wg);
1714 AliMixture(21, "TRIG GAS$", atrig, ztrig, dtrig, -5, wtrig);
1715 AliMixture(22, "ArCO2 80%$", ag1, zg1, dg1, 3, wg1);
1716 AliMixture(23, "Ar-freon $", atr1, ztr1, dtr1, 4, wtr1);
1717 AliMixture(24, "ArCO2 GAS$", agas, zgas, dgas, 3, wgas);
1e8fff9c 1718 // materials for slat:
1719 // Sensitive area: gas (already defined)
1720 // PCB: copper
1721 // insulating material and frame: vetronite
1722 // walls: carbon, rohacell, carbon
1723 Float_t aglass[5]={12.01, 28.09, 16., 10.8, 23.};
1724 Float_t zglass[5]={ 6., 14., 8., 5., 11.};
1725 Float_t wglass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
1726 Float_t dglass=1.74;
1727
1728 // rohacell: C9 H13 N1 O2
1729 Float_t arohac[4] = {12.01, 1.01, 14.010, 16.};
1730 Float_t zrohac[4] = { 6., 1., 7., 8.};
1731 Float_t wrohac[4] = { 9., 13., 1., 2.};
1732 Float_t drohac = 0.03;
1733
1734 AliMaterial(31, "COPPER$", 63.54, 29., 8.96, 1.4, 0.);
1735 AliMixture(32, "Vetronite$",aglass, zglass, dglass, 5, wglass);
1736 AliMaterial(33, "Carbon$", 12.01, 6., 2.265, 18.8, 49.9);
1737 AliMixture(34, "Rohacell$", arohac, zrohac, drohac, -4, wrohac);
1738
a9e2aefa 1739
1740 epsil = .001; // Tracking precision,
1741 stemax = -1.; // Maximum displacement for multiple scat
1742 tmaxfd = -20.; // Maximum angle due to field deflection
1743 deemax = -.3; // Maximum fractional energy loss, DLS
1744 stmin = -.8;
1745 //
1746 // Air
1747 AliMedium(1, "AIR_CH_US ", 15, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1748 //
1749 // Aluminum
1750
1751 AliMedium(4, "ALU_CH_US ", 9, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1752 fMaxDestepAlu, epsil, stmin);
1753 AliMedium(5, "ALU_CH_US ", 10, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1754 fMaxDestepAlu, epsil, stmin);
1755 //
1756 // Ar-isoC4H10 gas
1757
1758 AliMedium(6, "AR_CH_US ", 20, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1759 fMaxDestepGas, epsil, stmin);
1760//
1761 // Ar-Isobuthane-Forane-SF6 gas
1762
1763 AliMedium(7, "GAS_CH_TRIGGER ", 21, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1764
1765 AliMedium(8, "BAKE_CH_TRIGGER ", 19, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1766 fMaxDestepAlu, epsil, stmin);
1767
1768 AliMedium(9, "ARG_CO2 ", 22, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1769 fMaxDestepAlu, epsil, stmin);
1e8fff9c 1770 // tracking media for slats: check the parameters!!
1771 AliMedium(11, "PCB_COPPER ", 31, 0, iSXFLD, sXMGMX, tmaxfd,
1772 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1773 AliMedium(12, "VETRONITE ", 32, 0, iSXFLD, sXMGMX, tmaxfd,
1774 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1775 AliMedium(13, "CARBON ", 33, 0, iSXFLD, sXMGMX, tmaxfd,
1776 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1777 AliMedium(14, "Rohacell ", 34, 0, iSXFLD, sXMGMX, tmaxfd,
1778 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
a9e2aefa 1779}
1780
1781//___________________________________________
1782
1783void AliMUONv1::Init()
1784{
1785 //
1786 // Initialize Tracking Chambers
1787 //
1788
1789 printf("\n\n\n Start Init for version 1 - CPC chamber type\n\n\n");
e17592e9 1790 Int_t i;
f665c1ea 1791 for (i=0; i<AliMUONConstants::NCh(); i++) {
a9e2aefa 1792 ( (AliMUONChamber*) (*fChambers)[i])->Init();
1793 }
1794
1795 //
1796 // Set the chamber (sensitive region) GEANT identifier
1797 AliMC* gMC = AliMC::GetMC();
1798 ((AliMUONChamber*)(*fChambers)[0])->SetGid(gMC->VolId("C01G"));
1799 ((AliMUONChamber*)(*fChambers)[1])->SetGid(gMC->VolId("C02G"));
1800 ((AliMUONChamber*)(*fChambers)[2])->SetGid(gMC->VolId("C03G"));
1801 ((AliMUONChamber*)(*fChambers)[3])->SetGid(gMC->VolId("C04G"));
1e8fff9c 1802 ((AliMUONChamber*)(*fChambers)[4])->SetGid(gMC->VolId("S05G"));
1803 ((AliMUONChamber*)(*fChambers)[5])->SetGid(gMC->VolId("S06G"));
1804 ((AliMUONChamber*)(*fChambers)[6])->SetGid(gMC->VolId("S07G"));
1805 ((AliMUONChamber*)(*fChambers)[7])->SetGid(gMC->VolId("S08G"));
1806 ((AliMUONChamber*)(*fChambers)[8])->SetGid(gMC->VolId("S09G"));
1807 ((AliMUONChamber*)(*fChambers)[9])->SetGid(gMC->VolId("S10G"));
a9e2aefa 1808 ((AliMUONChamber*)(*fChambers)[10])->SetGid(gMC->VolId("CG1A"));
1809 ((AliMUONChamber*)(*fChambers)[11])->SetGid(gMC->VolId("CG2A"));
1810 ((AliMUONChamber*)(*fChambers)[12])->SetGid(gMC->VolId("CG3A"));
1811 ((AliMUONChamber*)(*fChambers)[13])->SetGid(gMC->VolId("CG4A"));
1812
1813 printf("\n\n\n Finished Init for version 0 - CPC chamber type\n\n\n");
1814
1815 //cp
1816 printf("\n\n\n Start Init for Trigger Circuits\n\n\n");
f665c1ea 1817 for (i=0; i<AliMUONConstants::NTriggerCircuit(); i++) {
a9e2aefa 1818 ( (AliMUONTriggerCircuit*) (*fTriggerCircuits)[i])->Init(i);
1819 }
1820 printf(" Finished Init for Trigger Circuits\n\n\n");
1821 //cp
1822
1823}
1824
1825//___________________________________________
1826void AliMUONv1::StepManager()
1827{
1828 Int_t copy, id;
1829 static Int_t idvol;
1830 static Int_t vol[2];
1831 Int_t ipart;
1832 TLorentzVector pos;
1833 TLorentzVector mom;
1834 Float_t theta,phi;
1835 Float_t destep, step;
1836
1e8fff9c 1837 static Float_t eloss, eloss2, xhit, yhit, zhit, tof, tlength;
a9e2aefa 1838 const Float_t kBig=1.e10;
a9e2aefa 1839 // modifs perso
1840 static Float_t hits[15];
1841
1842 TClonesArray &lhits = *fHits;
1843
1844 //
1845 // Set maximum step size for gas
1846 // numed=gMC->GetMedium();
1847 //
1848 // Only charged tracks
1849 if( !(gMC->TrackCharge()) ) return;
1850 //
1851 // Only gas gap inside chamber
1852 // Tag chambers and record hits when track enters
1853 idvol=-1;
1854 id=gMC->CurrentVolID(copy);
1855
f665c1ea 1856 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
a9e2aefa 1857 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
1858 vol[0]=i;
1859 idvol=i-1;
1860 }
1861 }
1862 if (idvol == -1) return;
1863 //
1864 // Get current particle id (ipart), track position (pos) and momentum (mom)
1865 gMC->TrackPosition(pos);
1866 gMC->TrackMomentum(mom);
1867
1868 ipart = gMC->TrackPid();
1869 //Int_t ipart1 = gMC->IdFromPDG(ipart);
1870 //printf("ich, ipart %d %d \n",vol[0],ipart1);
1871
1872 //
1873 // momentum loss and steplength in last step
1874 destep = gMC->Edep();
1875 step = gMC->TrackStep();
1876
1877 //
1878 // record hits when track enters ...
1879 if( gMC->IsTrackEntering()) {
1880 gMC->SetMaxStep(fMaxStepGas);
1881 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1882 Double_t rt = TMath::Sqrt(tc);
1883 Double_t pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1884 Double_t tx=mom[0]/pmom;
1885 Double_t ty=mom[1]/pmom;
1886 Double_t tz=mom[2]/pmom;
1887 Double_t s=((AliMUONChamber*)(*fChambers)[idvol])
1888 ->ResponseModel()
1889 ->Pitch()/tz;
1890 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
1891 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1892 hits[0] = Float_t(ipart); // Geant3 particle type
1893 hits[1] = pos[0]+s*tx; // X-position for hit
1894 hits[2] = pos[1]+s*ty; // Y-position for hit
1895 hits[3] = pos[2]+s*tz; // Z-position for hit
1896 hits[4] = theta; // theta angle of incidence
1897 hits[5] = phi; // phi angle of incidence
1898 hits[8] = (Float_t) fNPadHits; // first padhit
1899 hits[9] = -1; // last pad hit
1900
1901 // modifs perso
1902 hits[10] = mom[3]; // hit momentum P
1903 hits[11] = mom[0]; // Px/P
1904 hits[12] = mom[1]; // Py/P
1905 hits[13] = mom[2]; // Pz/P
1906 // fin modifs perso
1907 tof=gMC->TrackTime();
1908 hits[14] = tof; // Time of flight
1909 // phi angle of incidence
1910 tlength = 0;
1911 eloss = 0;
1912 eloss2 = 0;
1913 xhit = pos[0];
1914 yhit = pos[1];
1e8fff9c 1915 zhit = pos[2];
a9e2aefa 1916 // Only if not trigger chamber
1e8fff9c 1917
1918
1919
1920
a75f073c 1921 if(idvol<AliMUONConstants::NTrackingCh()) {
a9e2aefa 1922 //
1923 // Initialize hit position (cursor) in the segmentation model
1924 ((AliMUONChamber*) (*fChambers)[idvol])
1925 ->SigGenInit(pos[0], pos[1], pos[2]);
1926 } else {
1927 //geant3->Gpcxyz();
1928 //printf("In the Trigger Chamber #%d\n",idvol-9);
1929 }
1930 }
1931 eloss2+=destep;
1932
1933 //
1934 // Calculate the charge induced on a pad (disintegration) in case
1935 //
1936 // Mip left chamber ...
1937 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1938 gMC->SetMaxStep(kBig);
1939 eloss += destep;
1940 tlength += step;
1941
802a864d 1942 Float_t x0,y0,z0;
1943 Float_t localPos[3];
1944 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
802a864d 1945 gMC->Gmtod(globalPos,localPos,1);
1946
a75f073c 1947 if(idvol<AliMUONConstants::NTrackingCh()) {
a9e2aefa 1948// tracking chambers
1949 x0 = 0.5*(xhit+pos[0]);
1950 y0 = 0.5*(yhit+pos[1]);
1e8fff9c 1951 z0 = 0.5*(zhit+pos[2]);
1952 // z0 = localPos[2];
a9e2aefa 1953 } else {
1954// trigger chambers
1955 x0=xhit;
1956 y0=yhit;
1e8fff9c 1957// z0=yhit;
802a864d 1958 z0=0.;
a9e2aefa 1959 }
1960
1e8fff9c 1961
802a864d 1962 if (eloss >0) MakePadHits(x0,y0,z0,eloss,tof,idvol);
a9e2aefa 1963
1964
1965 hits[6]=tlength;
1966 hits[7]=eloss2;
1967 if (fNPadHits > (Int_t)hits[8]) {
1968 hits[8]= hits[8]+1;
1969 hits[9]= (Float_t) fNPadHits;
1970 }
1971
1972 new(lhits[fNhits++])
1973 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1974 eloss = 0;
1975 //
1976 // Check additional signal generation conditions
1977 // defined by the segmentation
a75f073c 1978 // model (boundary crossing conditions)
1979 // only for tracking chambers
a9e2aefa 1980 } else if
a75f073c 1981 ((idvol < AliMUONConstants::NTrackingCh()) &&
1982 ((AliMUONChamber*) (*fChambers)[idvol])->SigGenCond(pos[0], pos[1], pos[2]))
a9e2aefa 1983 {
1984 ((AliMUONChamber*) (*fChambers)[idvol])
1985 ->SigGenInit(pos[0], pos[1], pos[2]);
802a864d 1986
1987 Float_t localPos[3];
1988 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
1989 gMC->Gmtod(globalPos,localPos,1);
1990
1991
a75f073c 1992 if (eloss > 0 && idvol < AliMUONConstants::NTrackingCh())
1e8fff9c 1993 MakePadHits(0.5*(xhit+pos[0]),0.5*(yhit+pos[1]),pos[2],eloss,tof,idvol);
a9e2aefa 1994 xhit = pos[0];
1995 yhit = pos[1];
1e8fff9c 1996 zhit = pos[2];
a9e2aefa 1997 eloss = destep;
1998 tlength += step ;
1999 //
2000 // nothing special happened, add up energy loss
2001 } else {
2002 eloss += destep;
2003 tlength += step ;
2004 }
2005}
2006
2007