Use absolute coordinates for mother volume PCON.
[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 *
2c799aa2 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$Log$
9e1a0ddb 18Revision 1.27 2001/04/06 11:24:43 morsch
19Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class.
20Static method Build() builds the MUON system out of chambers, segmentation and response.
21
be3bb6c1 22Revision 1.26 2001/03/17 10:07:20 morsch
23Correct inconsistent variable name / method name / comments.
24
2eb55fab 25Revision 1.25 2001/03/16 15:32:06 morsch
26Corrections of overlap with beam shield and dipole (A. de Falco)
27
21a18f36 28Revision 1.24 2001/03/14 17:22:15 pcrochet
29Geometry of the trigger chambers : a vertical gap of has been introduced around x=0 according fig.3.27 of the TDR (P.Dupieux)
30
236fe2c5 31Revision 1.23 2001/01/18 15:23:49 egangler
32Bug correction in StepManager :
33Now the systematic offset with angle is cured
34
e0f71fb7 35Revision 1.22 2001/01/17 21:01:21 hristov
36Unused variable removed
37
a7e8b51a 38Revision 1.21 2000/12/20 13:00:22 egangler
39
40Added charge correlation between cathods.
41In Config_slat.C, use
42 MUON->Chamber(chamber-1).SetChargeCorrel(0.11); to set the RMS of
43 q1/q2 to 11 % (number from Alberto)
44 This is stored in AliMUONChamber fChargeCorrel member.
45 At generation time, when a tracks enters the volume,
46 AliMUONv1::StepManager calls
47 AliMUONChamber::ChargeCorrelationInit() to set the current value of
48 fCurrentCorrel which is then used at Disintegration level to scale
49 appropriately the PadHit charges.
50
681d067b 51Revision 1.20 2000/12/04 17:48:23 gosset
52Modifications for stations 1 et 2 mainly:
53* station 1 with 4 mm gas gap and smaller cathode segmentation...
54* stations 1 and 2 with "grey" frame crosses
55* mean noise at 1.5 ADC channel
56* Ar-CO2 gas (80%+20%)
57
b64652f5 58Revision 1.19 2000/12/02 17:15:46 morsch
59Correction of dead zones in inner regions of stations 3-5
60Correction of length of slats 3 and 9 of station 4.
61
a083207d 62Revision 1.17 2000/11/24 12:57:10 morsch
63New version of geometry for stations 3-5 "Slats" (A. de Falco)
64 - sensitive region at station 3 inner radius
65 - improved volume tree structure
66
3c084d9f 67Revision 1.16 2000/11/08 13:01:40 morsch
68Chamber half-planes of stations 3-5 at different z-positions.
69
e1ad7d45 70Revision 1.15 2000/11/06 11:39:02 morsch
71Bug in StepManager() corrected.
72
e3cf5faa 73Revision 1.14 2000/11/06 09:16:50 morsch
74Avoid overlap of slat volumes.
75
2c799aa2 76Revision 1.13 2000/10/26 07:33:44 morsch
77Correct x-position of slats in station 5.
78
8013c580 79Revision 1.12 2000/10/25 19:55:35 morsch
80Switches for each station individually for debug and lego.
81
b17c0c87 82Revision 1.11 2000/10/22 16:44:01 morsch
83Update of slat geometry for stations 3,4,5 (A. deFalco)
84
f9f7c205 85Revision 1.10 2000/10/12 16:07:04 gosset
86StepManager:
87* SigGenCond only called for tracking chambers,
88 hence no more division by 0,
89 and may use last ALIROOT/dummies.C with exception handling;
90* "10" replaced by "AliMUONConstants::NTrackingCh()".
91
a75f073c 92Revision 1.9 2000/10/06 15:37:22 morsch
93Problems with variable redefinition in for-loop solved.
94Variable names starting with u-case letters changed to l-case.
95
6c5ddcfa 96Revision 1.8 2000/10/06 09:06:31 morsch
97Include Slat chambers (stations 3-5) into geometry (A. de Falco)
98
1e8fff9c 99Revision 1.7 2000/10/02 21:28:09 fca
100Removal of useless dependecies via forward declarations
101
94de3818 102Revision 1.6 2000/10/02 17:20:45 egangler
103Cleaning of the code (continued ) :
104-> coding conventions
105-> void Streamers
106-> some useless includes removed or replaced by "class" statement
107
8c449e83 108Revision 1.5 2000/06/28 15:16:35 morsch
109(1) Client code adapted to new method signatures in AliMUONSegmentation (see comments there)
110to allow development of slat-muon chamber simulation and reconstruction code in the MUON
111framework. The changes should have no side effects (mostly dummy arguments).
112(2) Hit disintegration uses 3-dim hit coordinates to allow simulation
113of chambers with overlapping modules (MakePadHits, Disintegration).
114
802a864d 115Revision 1.4 2000/06/26 14:02:38 morsch
116Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
117
f665c1ea 118Revision 1.3 2000/06/22 14:10:05 morsch
119HP scope problems corrected (PH)
120
e17592e9 121Revision 1.2 2000/06/15 07:58:49 morsch
122Code from MUON-dev joined
123
a9e2aefa 124Revision 1.1.2.14 2000/06/14 14:37:25 morsch
125Initialization of TriggerCircuit added (PC)
126
127Revision 1.1.2.13 2000/06/09 21:55:47 morsch
128Most coding rule violations corrected.
129
130Revision 1.1.2.12 2000/05/05 11:34:29 morsch
131Log inside comments.
132
133Revision 1.1.2.11 2000/05/05 10:06:48 morsch
134Coding Rule violations regarding trigger section corrected (CP)
135Log messages included.
136*/
137
138/////////////////////////////////////////////////////////
139// Manager and hits classes for set:MUON version 0 //
140/////////////////////////////////////////////////////////
141
142#include <TTUBE.h>
143#include <TNode.h>
144#include <TRandom.h>
145#include <TLorentzVector.h>
146#include <iostream.h>
147
148#include "AliMUONv1.h"
149#include "AliRun.h"
150#include "AliMC.h"
94de3818 151#include "AliMagF.h"
a9e2aefa 152#include "AliCallf77.h"
153#include "AliConst.h"
154#include "AliMUONChamber.h"
155#include "AliMUONHit.h"
156#include "AliMUONPadHit.h"
f665c1ea 157#include "AliMUONConstants.h"
8c449e83 158#include "AliMUONTriggerCircuit.h"
be3bb6c1 159#include "AliMUONFactory.h"
a9e2aefa 160
161ClassImp(AliMUONv1)
162
163//___________________________________________
164AliMUONv1::AliMUONv1() : AliMUON()
165{
166// Constructor
167 fChambers = 0;
168}
169
170//___________________________________________
171AliMUONv1::AliMUONv1(const char *name, const char *title)
172 : AliMUON(name,title)
173{
174// Constructor
be3bb6c1 175 AliMUONFactory::Build(this, title);
a9e2aefa 176}
177
178//___________________________________________
179void AliMUONv1::CreateGeometry()
180{
181//
182// Note: all chambers have the same structure, which could be
183// easily parameterised. This was intentionally not done in order
184// to give a starting point for the implementation of the actual
185// design of each station.
186 Int_t *idtmed = fIdtmed->GetArray()-1099;
187
188// Distance between Stations
189//
190 Float_t bpar[3];
191 Float_t tpar[3];
b64652f5 192// Float_t pgpar[10];
a9e2aefa 193 Float_t zpos1, zpos2, zfpos;
b64652f5 194 // Outer excess and inner recess for mother volume radius
195 // with respect to ROuter and RInner
a9e2aefa 196 Float_t dframep=.001; // Value for station 3 should be 6 ...
b64652f5 197 // Width (RdPhi) of the frame crosses for stations 1 and 2 (cm)
198// Float_t dframep1=.001;
199 Float_t dframep1 = 11.0;
200// Bool_t frameCrosses=kFALSE;
201 Bool_t frameCrosses=kTRUE;
a9e2aefa 202
b64652f5 203// Float_t dframez=0.9;
204 // Half of the total thickness of frame crosses (including DAlu)
205 // for each chamber in stations 1 and 2:
206 // 3% of X0 of composite material,
207 // but taken as Aluminium here, with same thickness in number of X0
208 Float_t dframez = 3. * 8.9 / 100;
209// Float_t dr;
a9e2aefa 210 Float_t dstation;
211
212//
213// Rotation matrices in the x-y plane
214 Int_t idrotm[1199];
215// phi= 0 deg
216 AliMatrix(idrotm[1100], 90., 0., 90., 90., 0., 0.);
217// phi= 90 deg
218 AliMatrix(idrotm[1101], 90., 90., 90., 180., 0., 0.);
219// phi= 180 deg
220 AliMatrix(idrotm[1102], 90., 180., 90., 270., 0., 0.);
221// phi= 270 deg
222 AliMatrix(idrotm[1103], 90., 270., 90., 0., 0., 0.);
223//
224 Float_t phi=2*TMath::Pi()/12/2;
225
226//
227// pointer to the current chamber
228// pointer to the current chamber
b64652f5 229 Int_t idAlu1=idtmed[1103]; // medium 4
230 Int_t idAlu2=idtmed[1104]; // medium 5
a9e2aefa 231// Int_t idAlu1=idtmed[1100];
232// Int_t idAlu2=idtmed[1100];
b64652f5 233 Int_t idAir=idtmed[1100]; // medium 1
234// Int_t idGas=idtmed[1105]; // medium 6 = Ar-isoC4H10 gas
235 Int_t idGas=idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
a9e2aefa 236
237
238 AliMUONChamber *iChamber, *iChamber1, *iChamber2;
b17c0c87 239 Int_t stations[5] = {1, 1, 1, 1, 1};
240
241 if (stations[0]) {
242
a9e2aefa 243//********************************************************************
244// Station 1 **
245//********************************************************************
246// CONCENTRIC
247 // indices 1 and 2 for first and second chambers in the station
248 // iChamber (first chamber) kept for other quanties than Z,
249 // assumed to be the same in both chambers
250 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[0];
251 iChamber2 =(AliMUONChamber*) (*fChambers)[1];
252 zpos1=iChamber1->Z();
253 zpos2=iChamber2->Z();
254 dstation = zpos2 - zpos1;
b64652f5 255 // DGas decreased from standard one (0.5)
256 iChamber->SetDGas(0.4); iChamber2->SetDGas(0.4);
257 // DAlu increased from standard one (3% of X0),
258 // because more electronics with smaller pads
259 iChamber->SetDAlu(3.5 * 8.9 / 100.); iChamber2->SetDAlu(3.5 * 8.9 / 100.);
a9e2aefa 260 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
261
262//
263// Mother volume
b64652f5 264 tpar[0] = iChamber->RInner()-dframep;
265 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
2c799aa2 266 tpar[2] = dstation/5;
a9e2aefa 267
268 gMC->Gsvolu("C01M", "TUBE", idAir, tpar, 3);
269 gMC->Gsvolu("C02M", "TUBE", idAir, tpar, 3);
270 gMC->Gspos("C01M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
1e8fff9c 271 gMC->Gspos("C02M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
b64652f5 272// // Aluminium frames
273// // Outer frames
274// pgpar[0] = 360/12/2;
275// pgpar[1] = 360.;
276// pgpar[2] = 12.;
277// pgpar[3] = 2;
278// pgpar[4] = -dframez/2;
279// pgpar[5] = iChamber->ROuter();
280// pgpar[6] = pgpar[5]+dframep1;
281// pgpar[7] = +dframez/2;
282// pgpar[8] = pgpar[5];
283// pgpar[9] = pgpar[6];
284// gMC->Gsvolu("C01O", "PGON", idAlu1, pgpar, 10);
285// gMC->Gsvolu("C02O", "PGON", idAlu1, pgpar, 10);
286// gMC->Gspos("C01O",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
287// gMC->Gspos("C01O",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
288// gMC->Gspos("C02O",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
289// gMC->Gspos("C02O",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
290// //
291// // Inner frame
292// tpar[0]= iChamber->RInner()-dframep1;
293// tpar[1]= iChamber->RInner();
294// tpar[2]= dframez/2;
295// gMC->Gsvolu("C01I", "TUBE", idAlu1, tpar, 3);
296// gMC->Gsvolu("C02I", "TUBE", idAlu1, tpar, 3);
297
298// gMC->Gspos("C01I",1,"C01M", 0.,0.,-zfpos, 0,"ONLY");
299// gMC->Gspos("C01I",2,"C01M", 0.,0.,+zfpos, 0,"ONLY");
300// gMC->Gspos("C02I",1,"C02M", 0.,0.,-zfpos, 0,"ONLY");
301// gMC->Gspos("C02I",2,"C02M", 0.,0.,+zfpos, 0,"ONLY");
a9e2aefa 302//
303// Frame Crosses
b64652f5 304 if (frameCrosses) {
305 // outside gas
306 // security for inside mother volume
307 bpar[0] = (iChamber->ROuter() - iChamber->RInner())
308 * TMath::Cos(TMath::ASin(dframep1 /
309 (iChamber->ROuter() - iChamber->RInner())))
310 / 2.0;
a9e2aefa 311 bpar[1] = dframep1/2;
b64652f5 312 // total thickness will be (4 * bpar[2]) for each chamber,
313 // which has to be equal to (2 * dframez) - DAlu
314 bpar[2] = (2.0 * dframez - iChamber->DAlu()) / 4.0;
a9e2aefa 315 gMC->Gsvolu("C01B", "BOX", idAlu1, bpar, 3);
316 gMC->Gsvolu("C02B", "BOX", idAlu1, bpar, 3);
317
318 gMC->Gspos("C01B",1,"C01M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
319 idrotm[1100],"ONLY");
320 gMC->Gspos("C01B",2,"C01M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
321 idrotm[1100],"ONLY");
322 gMC->Gspos("C01B",3,"C01M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
323 idrotm[1101],"ONLY");
324 gMC->Gspos("C01B",4,"C01M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
325 idrotm[1101],"ONLY");
326 gMC->Gspos("C01B",5,"C01M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
327 idrotm[1100],"ONLY");
328 gMC->Gspos("C01B",6,"C01M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
329 idrotm[1100],"ONLY");
330 gMC->Gspos("C01B",7,"C01M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
331 idrotm[1101],"ONLY");
332 gMC->Gspos("C01B",8,"C01M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
333 idrotm[1101],"ONLY");
334
335 gMC->Gspos("C02B",1,"C02M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
336 idrotm[1100],"ONLY");
337 gMC->Gspos("C02B",2,"C02M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
338 idrotm[1100],"ONLY");
339 gMC->Gspos("C02B",3,"C02M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
340 idrotm[1101],"ONLY");
341 gMC->Gspos("C02B",4,"C02M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
342 idrotm[1101],"ONLY");
343 gMC->Gspos("C02B",5,"C02M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
344 idrotm[1100],"ONLY");
345 gMC->Gspos("C02B",6,"C02M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
346 idrotm[1100],"ONLY");
347 gMC->Gspos("C02B",7,"C02M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
348 idrotm[1101],"ONLY");
349 gMC->Gspos("C02B",8,"C02M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
350 idrotm[1101],"ONLY");
351 }
352//
353// Chamber Material represented by Alu sheet
354 tpar[0]= iChamber->RInner();
355 tpar[1]= iChamber->ROuter();
356 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
357 gMC->Gsvolu("C01A", "TUBE", idAlu2, tpar, 3);
358 gMC->Gsvolu("C02A", "TUBE",idAlu2, tpar, 3);
359 gMC->Gspos("C01A", 1, "C01M", 0., 0., 0., 0, "ONLY");
360 gMC->Gspos("C02A", 1, "C02M", 0., 0., 0., 0, "ONLY");
361//
362// Sensitive volumes
363 // tpar[2] = iChamber->DGas();
364 tpar[2] = iChamber->DGas()/2;
b64652f5 365 gMC->Gsvolu("C01G", "TUBE", idGas, tpar, 3);
366 gMC->Gsvolu("C02G", "TUBE", idGas, tpar, 3);
a9e2aefa 367 gMC->Gspos("C01G", 1, "C01A", 0., 0., 0., 0, "ONLY");
368 gMC->Gspos("C02G", 1, "C02A", 0., 0., 0., 0, "ONLY");
369//
b64652f5 370// Frame Crosses to be placed inside gas
371 // NONE: chambers are sensitive everywhere
372// if (frameCrosses) {
373
374// dr = (iChamber->ROuter() - iChamber->RInner());
375// bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
376// bpar[1] = dframep1/2;
377// bpar[2] = iChamber->DGas()/2;
378// gMC->Gsvolu("C01F", "BOX", idAlu1, bpar, 3);
379// gMC->Gsvolu("C02F", "BOX", idAlu1, bpar, 3);
a9e2aefa 380
b64652f5 381// gMC->Gspos("C01F",1,"C01G", +iChamber->RInner()+bpar[0] , 0, 0,
382// idrotm[1100],"ONLY");
383// gMC->Gspos("C01F",2,"C01G", -iChamber->RInner()-bpar[0] , 0, 0,
384// idrotm[1100],"ONLY");
385// gMC->Gspos("C01F",3,"C01G", 0, +iChamber->RInner()+bpar[0] , 0,
386// idrotm[1101],"ONLY");
387// gMC->Gspos("C01F",4,"C01G", 0, -iChamber->RInner()-bpar[0] , 0,
388// idrotm[1101],"ONLY");
a9e2aefa 389
b64652f5 390// gMC->Gspos("C02F",1,"C02G", +iChamber->RInner()+bpar[0] , 0, 0,
391// idrotm[1100],"ONLY");
392// gMC->Gspos("C02F",2,"C02G", -iChamber->RInner()-bpar[0] , 0, 0,
393// idrotm[1100],"ONLY");
394// gMC->Gspos("C02F",3,"C02G", 0, +iChamber->RInner()+bpar[0] , 0,
395// idrotm[1101],"ONLY");
396// gMC->Gspos("C02F",4,"C02G", 0, -iChamber->RInner()-bpar[0] , 0,
397// idrotm[1101],"ONLY");
398// }
b17c0c87 399 }
400 if (stations[1]) {
401
a9e2aefa 402//********************************************************************
403// Station 2 **
404//********************************************************************
405 // indices 1 and 2 for first and second chambers in the station
406 // iChamber (first chamber) kept for other quanties than Z,
407 // assumed to be the same in both chambers
408 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[2];
409 iChamber2 =(AliMUONChamber*) (*fChambers)[3];
410 zpos1=iChamber1->Z();
411 zpos2=iChamber2->Z();
412 dstation = zpos2 - zpos1;
b64652f5 413 // DGas and DAlu not changed from standard values
a9e2aefa 414 zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2;
415
416//
417// Mother volume
418 tpar[0] = iChamber->RInner()-dframep;
419 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
2c799aa2 420 tpar[2] = dstation/5;
a9e2aefa 421
422 gMC->Gsvolu("C03M", "TUBE", idAir, tpar, 3);
423 gMC->Gsvolu("C04M", "TUBE", idAir, tpar, 3);
424 gMC->Gspos("C03M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
425 gMC->Gspos("C04M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
1e8fff9c 426
b64652f5 427// // Aluminium frames
428// // Outer frames
429// pgpar[0] = 360/12/2;
430// pgpar[1] = 360.;
431// pgpar[2] = 12.;
432// pgpar[3] = 2;
433// pgpar[4] = -dframez/2;
434// pgpar[5] = iChamber->ROuter();
435// pgpar[6] = pgpar[5]+dframep;
436// pgpar[7] = +dframez/2;
437// pgpar[8] = pgpar[5];
438// pgpar[9] = pgpar[6];
439// gMC->Gsvolu("C03O", "PGON", idAlu1, pgpar, 10);
440// gMC->Gsvolu("C04O", "PGON", idAlu1, pgpar, 10);
441// gMC->Gspos("C03O",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
442// gMC->Gspos("C03O",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
443// gMC->Gspos("C04O",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
444// gMC->Gspos("C04O",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
445// //
446// // Inner frame
447// tpar[0]= iChamber->RInner()-dframep;
448// tpar[1]= iChamber->RInner();
449// tpar[2]= dframez/2;
450// gMC->Gsvolu("C03I", "TUBE", idAlu1, tpar, 3);
451// gMC->Gsvolu("C04I", "TUBE", idAlu1, tpar, 3);
452
453// gMC->Gspos("C03I",1,"C03M", 0.,0.,-zfpos, 0,"ONLY");
454// gMC->Gspos("C03I",2,"C03M", 0.,0.,+zfpos, 0,"ONLY");
455// gMC->Gspos("C04I",1,"C04M", 0.,0.,-zfpos, 0,"ONLY");
456// gMC->Gspos("C04I",2,"C04M", 0.,0.,+zfpos, 0,"ONLY");
a9e2aefa 457//
458// Frame Crosses
b64652f5 459 if (frameCrosses) {
460 // outside gas
461 // security for inside mother volume
462 bpar[0] = (iChamber->ROuter() - iChamber->RInner())
463 * TMath::Cos(TMath::ASin(dframep1 /
464 (iChamber->ROuter() - iChamber->RInner())))
465 / 2.0;
466 bpar[1] = dframep1/2;
467 // total thickness will be (4 * bpar[2]) for each chamber,
468 // which has to be equal to (2 * dframez) - DAlu
469 bpar[2] = (2.0 * dframez - iChamber->DAlu()) / 4.0;
a9e2aefa 470 gMC->Gsvolu("C03B", "BOX", idAlu1, bpar, 3);
471 gMC->Gsvolu("C04B", "BOX", idAlu1, bpar, 3);
472
473 gMC->Gspos("C03B",1,"C03M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
474 idrotm[1100],"ONLY");
475 gMC->Gspos("C03B",2,"C03M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
476 idrotm[1100],"ONLY");
477 gMC->Gspos("C03B",3,"C03M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
478 idrotm[1101],"ONLY");
479 gMC->Gspos("C03B",4,"C03M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
480 idrotm[1101],"ONLY");
481 gMC->Gspos("C03B",5,"C03M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
482 idrotm[1100],"ONLY");
483 gMC->Gspos("C03B",6,"C03M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
484 idrotm[1100],"ONLY");
485 gMC->Gspos("C03B",7,"C03M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
486 idrotm[1101],"ONLY");
487 gMC->Gspos("C03B",8,"C03M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
488 idrotm[1101],"ONLY");
489
490 gMC->Gspos("C04B",1,"C04M", +iChamber->RInner()+bpar[0] , 0,-zfpos,
491 idrotm[1100],"ONLY");
492 gMC->Gspos("C04B",2,"C04M", -iChamber->RInner()-bpar[0] , 0,-zfpos,
493 idrotm[1100],"ONLY");
494 gMC->Gspos("C04B",3,"C04M", 0, +iChamber->RInner()+bpar[0] ,-zfpos,
495 idrotm[1101],"ONLY");
496 gMC->Gspos("C04B",4,"C04M", 0, -iChamber->RInner()-bpar[0] ,-zfpos,
497 idrotm[1101],"ONLY");
498 gMC->Gspos("C04B",5,"C04M", +iChamber->RInner()+bpar[0] , 0,+zfpos,
499 idrotm[1100],"ONLY");
500 gMC->Gspos("C04B",6,"C04M", -iChamber->RInner()-bpar[0] , 0,+zfpos,
501 idrotm[1100],"ONLY");
502 gMC->Gspos("C04B",7,"C04M", 0, +iChamber->RInner()+bpar[0] ,+zfpos,
503 idrotm[1101],"ONLY");
504 gMC->Gspos("C04B",8,"C04M", 0, -iChamber->RInner()-bpar[0] ,+zfpos,
505 idrotm[1101],"ONLY");
506 }
507//
508// Chamber Material represented by Alu sheet
509 tpar[0]= iChamber->RInner();
510 tpar[1]= iChamber->ROuter();
511 tpar[2] = (iChamber->DGas()+iChamber->DAlu())/2;
512 gMC->Gsvolu("C03A", "TUBE", idAlu2, tpar, 3);
513 gMC->Gsvolu("C04A", "TUBE", idAlu2, tpar, 3);
514 gMC->Gspos("C03A", 1, "C03M", 0., 0., 0., 0, "ONLY");
515 gMC->Gspos("C04A", 1, "C04M", 0., 0., 0., 0, "ONLY");
516//
517// Sensitive volumes
518 // tpar[2] = iChamber->DGas();
519 tpar[2] = iChamber->DGas()/2;
520 gMC->Gsvolu("C03G", "TUBE", idGas, tpar, 3);
521 gMC->Gsvolu("C04G", "TUBE", idGas, tpar, 3);
522 gMC->Gspos("C03G", 1, "C03A", 0., 0., 0., 0, "ONLY");
523 gMC->Gspos("C04G", 1, "C04A", 0., 0., 0., 0, "ONLY");
a9e2aefa 524//
525// Frame Crosses to be placed inside gas
b64652f5 526 // NONE: chambers are sensitive everywhere
527// if (frameCrosses) {
528
529// dr = (iChamber->ROuter() - iChamber->RInner());
530// bpar[0] = TMath::Sqrt(dr*dr-dframep1*dframep1/4)/2;
531// bpar[1] = dframep1/2;
532// bpar[2] = iChamber->DGas()/2;
533// gMC->Gsvolu("C03F", "BOX", idAlu1, bpar, 3);
534// gMC->Gsvolu("C04F", "BOX", idAlu1, bpar, 3);
a9e2aefa 535
b64652f5 536// gMC->Gspos("C03F",1,"C03G", +iChamber->RInner()+bpar[0] , 0, 0,
537// idrotm[1100],"ONLY");
538// gMC->Gspos("C03F",2,"C03G", -iChamber->RInner()-bpar[0] , 0, 0,
539// idrotm[1100],"ONLY");
540// gMC->Gspos("C03F",3,"C03G", 0, +iChamber->RInner()+bpar[0] , 0,
541// idrotm[1101],"ONLY");
542// gMC->Gspos("C03F",4,"C03G", 0, -iChamber->RInner()-bpar[0] , 0,
543// idrotm[1101],"ONLY");
a9e2aefa 544
b64652f5 545// gMC->Gspos("C04F",1,"C04G", +iChamber->RInner()+bpar[0] , 0, 0,
546// idrotm[1100],"ONLY");
547// gMC->Gspos("C04F",2,"C04G", -iChamber->RInner()-bpar[0] , 0, 0,
548// idrotm[1100],"ONLY");
549// gMC->Gspos("C04F",3,"C04G", 0, +iChamber->RInner()+bpar[0] , 0,
550// idrotm[1101],"ONLY");
551// gMC->Gspos("C04F",4,"C04G", 0, -iChamber->RInner()-bpar[0] , 0,
552// idrotm[1101],"ONLY");
553// }
b17c0c87 554 }
1e8fff9c 555 // define the id of tracking media:
556 Int_t idCopper = idtmed[1110];
557 Int_t idGlass = idtmed[1111];
558 Int_t idCarbon = idtmed[1112];
559 Int_t idRoha = idtmed[1113];
560
1e8fff9c 561 // sensitive area: 40*40 cm**2
6c5ddcfa 562 const Float_t sensLength = 40.;
563 const Float_t sensHeight = 40.;
564 const Float_t sensWidth = 0.5; // according to TDR fig 2.120
565 const Int_t sensMaterial = idGas;
1e8fff9c 566 const Float_t yOverlap = 1.5;
567
568 // PCB dimensions in cm; width: 30 mum copper
6c5ddcfa 569 const Float_t pcbLength = sensLength;
570 const Float_t pcbHeight = 60.;
571 const Float_t pcbWidth = 0.003;
572 const Int_t pcbMaterial = idCopper;
1e8fff9c 573
574 // Insulating material: 200 mum glass fiber glued to pcb
6c5ddcfa 575 const Float_t insuLength = pcbLength;
576 const Float_t insuHeight = pcbHeight;
577 const Float_t insuWidth = 0.020;
578 const Int_t insuMaterial = idGlass;
1e8fff9c 579
580 // Carbon fiber panels: 200mum carbon/epoxy skin
6c5ddcfa 581 const Float_t panelLength = sensLength;
582 const Float_t panelHeight = sensHeight;
583 const Float_t panelWidth = 0.020;
584 const Int_t panelMaterial = idCarbon;
1e8fff9c 585
586 // rohacell between the two carbon panels
6c5ddcfa 587 const Float_t rohaLength = sensLength;
588 const Float_t rohaHeight = sensHeight;
589 const Float_t rohaWidth = 0.5;
590 const Int_t rohaMaterial = idRoha;
1e8fff9c 591
592 // Frame around the slat: 2 sticks along length,2 along height
593 // H: the horizontal ones
6c5ddcfa 594 const Float_t hFrameLength = pcbLength;
595 const Float_t hFrameHeight = 1.5;
596 const Float_t hFrameWidth = sensWidth;
597 const Int_t hFrameMaterial = idGlass;
1e8fff9c 598
599 // V: the vertical ones
6c5ddcfa 600 const Float_t vFrameLength = 4.0;
601 const Float_t vFrameHeight = sensHeight + hFrameHeight;
602 const Float_t vFrameWidth = sensWidth;
603 const Int_t vFrameMaterial = idGlass;
1e8fff9c 604
605 // B: the horizontal border filled with rohacell
6c5ddcfa 606 const Float_t bFrameLength = hFrameLength;
607 const Float_t bFrameHeight = (pcbHeight - sensHeight)/2. - hFrameHeight;
608 const Float_t bFrameWidth = hFrameWidth;
609 const Int_t bFrameMaterial = idRoha;
1e8fff9c 610
611 // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper)
6c5ddcfa 612 const Float_t nulocLength = 2.5;
613 const Float_t nulocHeight = 7.5;
614 const Float_t nulocWidth = 0.0030 + 0.0014; // equivalent copper width of vetronite;
615 const Int_t nulocMaterial = idCopper;
1e8fff9c 616
6c5ddcfa 617 const Float_t slatHeight = pcbHeight;
618 const Float_t slatWidth = sensWidth + 2.*(pcbWidth + insuWidth +
619 2.* panelWidth + rohaWidth);
620 const Int_t slatMaterial = idAir;
621 const Float_t dSlatLength = vFrameLength; // border on left and right
1e8fff9c 622
1e8fff9c 623 Float_t spar[3];
b17c0c87 624 Int_t i, j;
625
3c084d9f 626 // the panel volume contains the rohacell
627
628 Float_t twidth = 2 * panelWidth + rohaWidth;
629 Float_t panelpar[3] = { panelLength/2., panelHeight/2., twidth/2. };
b17c0c87 630 Float_t rohapar[3] = { rohaLength/2., rohaHeight/2., rohaWidth/2. };
3c084d9f 631
632 // insulating material contains PCB-> gas-> 2 borders filled with rohacell
633
634 twidth = 2*(insuWidth + pcbWidth) + sensWidth;
635 Float_t insupar[3] = { insuLength/2., insuHeight/2., twidth/2. };
636 twidth -= 2 * insuWidth;
637 Float_t pcbpar[3] = { pcbLength/2., pcbHeight/2., twidth/2. };
638 Float_t senspar[3] = { sensLength/2., sensHeight/2., sensWidth/2. };
639 Float_t theight = 2*hFrameHeight + sensHeight;
640 Float_t hFramepar[3]={hFrameLength/2., theight/2., hFrameWidth/2.};
b17c0c87 641 Float_t bFramepar[3]={bFrameLength/2., bFrameHeight/2., bFrameWidth/2.};
3c084d9f 642 Float_t vFramepar[3]={vFrameLength/2., vFrameHeight/2., vFrameWidth/2.};
b17c0c87 643 Float_t nulocpar[3]={nulocLength/2., nulocHeight/2., nulocWidth/2.};
b17c0c87 644 Float_t xx;
645 Float_t xxmax = (bFrameLength - nulocLength)/2.;
646 Int_t index=0;
647
648 if (stations[2]) {
649
650//********************************************************************
651// Station 3 **
652//********************************************************************
653 // indices 1 and 2 for first and second chambers in the station
654 // iChamber (first chamber) kept for other quanties than Z,
655 // assumed to be the same in both chambers
656 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[4];
657 iChamber2 =(AliMUONChamber*) (*fChambers)[5];
658 zpos1=iChamber1->Z();
659 zpos2=iChamber2->Z();
660 dstation = zpos2 - zpos1;
661
b64652f5 662// zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2; // not used any more
b17c0c87 663//
664// Mother volume
665 tpar[0] = iChamber->RInner()-dframep;
666 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
21a18f36 667 tpar[2] = dstation/5;
b17c0c87 668 gMC->Gsvolu("C05M", "TUBE", idAir, tpar, 3);
669 gMC->Gsvolu("C06M", "TUBE", idAir, tpar, 3);
21a18f36 670 gMC->Gspos("C05M", 1, "ALIC", 0., 0., zpos1 , 0, "MANY");
671 gMC->Gspos("C06M", 1, "ALIC", 0., 0., zpos2 , 0, "MANY");
b17c0c87 672
673 // volumes for slat geometry (xx=5,..,10 chamber id):
674 // Sxx0 Sxx1 Sxx2 Sxx3 --> Slat Mother volumes
675 // SxxG --> Sensitive volume (gas)
676 // SxxP --> PCB (copper)
677 // SxxI --> Insulator (vetronite)
678 // SxxC --> Carbon panel
679 // SxxR --> Rohacell
680 // SxxH, SxxV --> Horizontal and Vertical frames (vetronite)
21a18f36 681 // SB5x --> Volumes for the 35 cm long PCB
b17c0c87 682 // slat dimensions: slat is a MOTHER volume!!! made of air
683
21a18f36 684 // only for chamber 5: slat 1 has a PCB shorter by 5cm!
685
686 Float_t tlength = 35.;
687 Float_t panelpar2[3] = { tlength/2., panelpar[1], panelpar[2]};
688 Float_t rohapar2[3] = { tlength/2., rohapar[1], rohapar[2]};
689 Float_t insupar2[3] = { tlength/2., insupar[1], insupar[2]};
690 Float_t pcbpar2[3] = { tlength/2., pcbpar[1], pcbpar[2]};
691 Float_t senspar2[3] = { tlength/2., senspar[1], senspar[2]};
692 Float_t hFramepar2[3] = { tlength/2., hFramepar[1], hFramepar[2]};
693 Float_t bFramepar2[3] = { tlength/2., bFramepar[1], bFramepar[2]};
694
a083207d 695 const Int_t nSlats3 = 5; // number of slats per quadrant
696 const Int_t nPCB3[nSlats3] = {3,3,4,3,2}; // n PCB per slat
21a18f36 697 const Float_t xpos3[nSlats3] = {31., 40., 0., 0., 0.};
b17c0c87 698 Float_t slatLength3[nSlats3];
699
700 // create and position the slat (mother) volumes
701
6c5ddcfa 702 char volNam5[5];
703 char volNam6[5];
f9f7c205 704 Float_t xSlat3;
b17c0c87 705
21a18f36 706 Float_t spar2[3];
6c5ddcfa 707 for (i = 0; i<nSlats3; i++){
3c084d9f 708 slatLength3[i] = pcbLength * nPCB3[i] + 2. * dSlatLength;
a083207d 709 xSlat3 = slatLength3[i]/2. - vFrameLength/2. + xpos3[i];
21a18f36 710 if (i==1 || i==0) slatLength3[i] -= 2. *dSlatLength; // frame out in PCB with circular border
a083207d 711 Float_t ySlat31 = sensHeight * i - yOverlap * i;
712 Float_t ySlat32 = -sensHeight * i + yOverlap * i;
3c084d9f 713 spar[0] = slatLength3[i]/2.;
714 spar[1] = slatHeight/2.;
715 spar[2] = slatWidth/2. * 1.01;
21a18f36 716 // take away 5 cm from the first slat in chamber 5
717 Float_t xSlat32 = 0;
718 if (i==1 || i==2) { // 1 pcb is shortened by 5cm
719 spar2[0] = spar[0]-5./2.;
720 xSlat32 = xSlat3 - 5/2.;
721 }
722 else {
723 spar2[0] = spar[0];
724 xSlat32 = xSlat3;
725 }
726 spar2[1] = spar[1];
727 spar2[2] = spar[2];
3c084d9f 728 Float_t dzCh3=spar[2] * 1.01;
729 // zSlat to be checked (odd downstream or upstream?)
730 Float_t zSlat = (i%2 ==0)? -spar[2] : spar[2];
731 sprintf(volNam5,"S05%d",i);
21a18f36 732 gMC->Gsvolu(volNam5,"BOX",slatMaterial,spar2,3);
733 gMC->Gspos(volNam5, i*4+1,"C05M", xSlat32, ySlat31, zSlat+2.*dzCh3, 0, "ONLY");
734 gMC->Gspos(volNam5, i*4+2,"C05M",-xSlat32, ySlat31, zSlat-2.*dzCh3, 0, "ONLY");
735
a083207d 736 if (i>0) {
21a18f36 737 gMC->Gspos(volNam5, i*4+3,"C05M", xSlat32, ySlat32, zSlat+2.*dzCh3, 0, "ONLY");
738 gMC->Gspos(volNam5, i*4+4,"C05M",-xSlat32, ySlat32, zSlat-2.*dzCh3, 0, "ONLY");
a083207d 739 }
3c084d9f 740 sprintf(volNam6,"S06%d",i);
741 gMC->Gsvolu(volNam6,"BOX",slatMaterial,spar,3);
742 gMC->Gspos(volNam6, i*4+1,"C06M", xSlat3, ySlat31, zSlat+2.*dzCh3, 0, "ONLY");
743 gMC->Gspos(volNam6, i*4+2,"C06M",-xSlat3, ySlat31, zSlat-2.*dzCh3, 0, "ONLY");
a083207d 744 if (i>0) {
745 gMC->Gspos(volNam6, i*4+3,"C06M", xSlat3, ySlat32, zSlat+2.*dzCh3, 0, "ONLY");
746 gMC->Gspos(volNam6, i*4+4,"C06M",-xSlat3, ySlat32, zSlat-2.*dzCh3, 0, "ONLY");
747 }
3c084d9f 748 }
1e8fff9c 749
750 // create the panel volume
b17c0c87 751
6c5ddcfa 752 gMC->Gsvolu("S05C","BOX",panelMaterial,panelpar,3);
21a18f36 753 gMC->Gsvolu("SB5C","BOX",panelMaterial,panelpar2,3);
6c5ddcfa 754 gMC->Gsvolu("S06C","BOX",panelMaterial,panelpar,3);
1e8fff9c 755
756 // create the rohacell volume
b17c0c87 757
6c5ddcfa 758 gMC->Gsvolu("S05R","BOX",rohaMaterial,rohapar,3);
21a18f36 759 gMC->Gsvolu("SB5R","BOX",rohaMaterial,rohapar2,3);
6c5ddcfa 760 gMC->Gsvolu("S06R","BOX",rohaMaterial,rohapar,3);
1e8fff9c 761
3c084d9f 762 // create the insulating material volume
763
764 gMC->Gsvolu("S05I","BOX",insuMaterial,insupar,3);
21a18f36 765 gMC->Gsvolu("SB5I","BOX",insuMaterial,insupar2,3);
3c084d9f 766 gMC->Gsvolu("S06I","BOX",insuMaterial,insupar,3);
767
768 // create the PCB volume
769
770 gMC->Gsvolu("S05P","BOX",pcbMaterial,pcbpar,3);
21a18f36 771 gMC->Gsvolu("SB5P","BOX",pcbMaterial,pcbpar2,3);
3c084d9f 772 gMC->Gsvolu("S06P","BOX",pcbMaterial,pcbpar,3);
773
774 // create the sensitive volumes,
775 gMC->Gsvolu("S05G","BOX",sensMaterial,0,0);
776 gMC->Gsvolu("S06G","BOX",sensMaterial,0,0);
777
778
1e8fff9c 779 // create the vertical frame volume
b17c0c87 780
6c5ddcfa 781 gMC->Gsvolu("S05V","BOX",vFrameMaterial,vFramepar,3);
782 gMC->Gsvolu("S06V","BOX",vFrameMaterial,vFramepar,3);
1e8fff9c 783
784 // create the horizontal frame volume
b17c0c87 785
6c5ddcfa 786 gMC->Gsvolu("S05H","BOX",hFrameMaterial,hFramepar,3);
21a18f36 787 gMC->Gsvolu("SB5H","BOX",hFrameMaterial,hFramepar2,3);
6c5ddcfa 788 gMC->Gsvolu("S06H","BOX",hFrameMaterial,hFramepar,3);
1e8fff9c 789
790 // create the horizontal border volume
b17c0c87 791
6c5ddcfa 792 gMC->Gsvolu("S05B","BOX",bFrameMaterial,bFramepar,3);
21a18f36 793 gMC->Gsvolu("SB5B","BOX",bFrameMaterial,bFramepar2,3);
6c5ddcfa 794 gMC->Gsvolu("S06B","BOX",bFrameMaterial,bFramepar,3);
1e8fff9c 795
b17c0c87 796 index=0;
6c5ddcfa 797 for (i = 0; i<nSlats3; i++){
798 sprintf(volNam5,"S05%d",i);
799 sprintf(volNam6,"S06%d",i);
f9f7c205 800 Float_t xvFrame = (slatLength3[i] - vFrameLength)/2.;
21a18f36 801 Float_t xvFrame2 = xvFrame;
802 if ( i==1 || i ==2 ) xvFrame2 -= 5./2.;
3c084d9f 803 // position the vertical frames
21a18f36 804 if (i!=1 && i!=0) {
805 gMC->Gspos("S05V",2*i-1,volNam5, xvFrame2, 0., 0. , 0, "ONLY");
806 gMC->Gspos("S05V",2*i ,volNam5,-xvFrame2, 0., 0. , 0, "ONLY");
3c084d9f 807 gMC->Gspos("S06V",2*i-1,volNam6, xvFrame, 0., 0. , 0, "ONLY");
808 gMC->Gspos("S06V",2*i ,volNam6,-xvFrame, 0., 0. , 0, "ONLY");
809 }
810 // position the panels and the insulating material
6c5ddcfa 811 for (j=0; j<nPCB3[i]; j++){
1e8fff9c 812 index++;
6c5ddcfa 813 Float_t xx = sensLength * (-nPCB3[i]/2.+j+.5);
21a18f36 814 Float_t xx2 = xx + 5/2.;
3c084d9f 815
816 Float_t zPanel = spar[2] - panelpar[2];
21a18f36 817 if ( (i==1 || i==2) && j == nPCB3[i]-1) { // 1 pcb is shortened by 5cm
818 gMC->Gspos("SB5C",2*index-1,volNam5, xx, 0., zPanel , 0, "ONLY");
819 gMC->Gspos("SB5C",2*index ,volNam5, xx, 0.,-zPanel , 0, "ONLY");
820 gMC->Gspos("SB5I",index ,volNam5, xx, 0., 0 , 0, "ONLY");
821 }
822 else if ( (i==1 || i==2) && j < nPCB3[i]-1) {
823 gMC->Gspos("S05C",2*index-1,volNam5, xx2, 0., zPanel , 0, "ONLY");
824 gMC->Gspos("S05C",2*index ,volNam5, xx2, 0.,-zPanel , 0, "ONLY");
825 gMC->Gspos("S05I",index ,volNam5, xx2, 0., 0 , 0, "ONLY");
826 }
827 else {
828 gMC->Gspos("S05C",2*index-1,volNam5, xx, 0., zPanel , 0, "ONLY");
829 gMC->Gspos("S05C",2*index ,volNam5, xx, 0.,-zPanel , 0, "ONLY");
830 gMC->Gspos("S05I",index ,volNam5, xx, 0., 0 , 0, "ONLY");
831 }
3c084d9f 832 gMC->Gspos("S06C",2*index-1,volNam6, xx, 0., zPanel , 0, "ONLY");
833 gMC->Gspos("S06C",2*index ,volNam6, xx, 0.,-zPanel , 0, "ONLY");
3c084d9f 834 gMC->Gspos("S06I",index,volNam6, xx, 0., 0 , 0, "ONLY");
1e8fff9c 835 }
a9e2aefa 836 }
21a18f36 837
3c084d9f 838 // position the rohacell volume inside the panel volume
839 gMC->Gspos("S05R",1,"S05C",0.,0.,0.,0,"ONLY");
21a18f36 840 gMC->Gspos("SB5R",1,"SB5C",0.,0.,0.,0,"ONLY");
3c084d9f 841 gMC->Gspos("S06R",1,"S06C",0.,0.,0.,0,"ONLY");
842
843 // position the PCB volume inside the insulating material volume
844 gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
21a18f36 845 gMC->Gspos("SB5P",1,"SB5I",0.,0.,0.,0,"ONLY");
3c084d9f 846 gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
847 // position the horizontal frame volume inside the PCB volume
848 gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
21a18f36 849 gMC->Gspos("SB5H",1,"SB5P",0.,0.,0.,0,"ONLY");
3c084d9f 850 gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
851 // position the sensitive volume inside the horizontal frame volume
852 gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
21a18f36 853 gMC->Gsposp("S05G",1,"SB5H",0.,0.,0.,0,"ONLY",senspar2,3);
3c084d9f 854 gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
855 // position the border volumes inside the PCB volume
856 Float_t yborder = ( pcbHeight - bFrameHeight ) / 2.;
857 gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
858 gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
21a18f36 859 gMC->Gspos("SB5B",1,"SB5P",0., yborder,0.,0,"ONLY");
860 gMC->Gspos("SB5B",2,"SB5P",0.,-yborder,0.,0,"ONLY");
3c084d9f 861 gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
862 gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
863
1e8fff9c 864 // create the NULOC volume and position it in the horizontal frame
b17c0c87 865
6c5ddcfa 866 gMC->Gsvolu("S05N","BOX",nulocMaterial,nulocpar,3);
867 gMC->Gsvolu("S06N","BOX",nulocMaterial,nulocpar,3);
6c5ddcfa 868 index = 0;
21a18f36 869 Float_t xxmax2 = xxmax - 5./2.;
870 for (xx = -xxmax; xx<=xxmax; xx+=2*nulocLength) {
1e8fff9c 871 index++;
6c5ddcfa 872 gMC->Gspos("S05N",2*index-1,"S05B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
873 gMC->Gspos("S05N",2*index ,"S05B", xx, 0., bFrameWidth/4., 0, "ONLY");
21a18f36 874 if (xx > -xxmax2 && xx< xxmax2) {
875 gMC->Gspos("S05N",2*index-1,"SB5B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
876 gMC->Gspos("S05N",2*index ,"SB5B", xx, 0., bFrameWidth/4., 0, "ONLY");
877 }
6c5ddcfa 878 gMC->Gspos("S06N",2*index-1,"S06B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
879 gMC->Gspos("S06N",2*index ,"S06B", xx, 0., bFrameWidth/4., 0, "ONLY");
1e8fff9c 880 }
3c084d9f 881
882 // position the volumes approximating the circular section of the pipe
a083207d 883 Float_t yoffs = sensHeight/2. - yOverlap;
3c084d9f 884 Float_t epsilon = 0.001;
885 Int_t ndiv=6;
886 Float_t divpar[3];
887 Double_t dydiv= sensHeight/ndiv;
21a18f36 888 Double_t ydiv = yoffs -dydiv;
3c084d9f 889 Int_t imax=0;
3c084d9f 890 imax = 1;
21a18f36 891 Float_t rmin = 33.;
a083207d 892 Float_t z1 = spar[2], z2=2*spar[2]*1.01;
3c084d9f 893 for (Int_t idiv=0;idiv<ndiv; idiv++){
894 ydiv+= dydiv;
425ebd0a 895 Float_t xdiv = 0.;
3c084d9f 896 if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
897 divpar[0] = (pcbLength-xdiv)/2.;
898 divpar[1] = dydiv/2. - epsilon;
899 divpar[2] = sensWidth/2.;
425ebd0a 900 Float_t xvol=(pcbLength+xdiv)/2.+1.999;
a083207d 901 Float_t yvol=ydiv + dydiv/2.;
21a18f36 902 //printf ("y ll = %f y ur = %f \n",yvol - divpar[1], yvol + divpar[1]);
3c084d9f 903 gMC->Gsposp("S05G",imax+4*idiv+1,"C05M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
904 gMC->Gsposp("S06G",imax+4*idiv+1,"C06M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
a083207d 905 gMC->Gsposp("S05G",imax+4*idiv+2,"C05M", xvol,-yvol, z1+z2, 0, "ONLY",divpar,3);
906 gMC->Gsposp("S06G",imax+4*idiv+2,"C06M", xvol,-yvol, z1+z2, 0, "ONLY",divpar,3);
907 gMC->Gsposp("S05G",imax+4*idiv+3,"C05M",-xvol, yvol, z1-z2, 0, "ONLY",divpar,3);
908 gMC->Gsposp("S06G",imax+4*idiv+3,"C06M",-xvol, yvol, z1-z2, 0, "ONLY",divpar,3);
909 gMC->Gsposp("S05G",imax+4*idiv+4,"C05M",-xvol,-yvol, z1-z2, 0, "ONLY",divpar,3);
910 gMC->Gsposp("S06G",imax+4*idiv+4,"C06M",-xvol,-yvol, z1-z2, 0, "ONLY",divpar,3);
3c084d9f 911 }
b17c0c87 912 }
b17c0c87 913
a9e2aefa 914
3c084d9f 915 if (stations[3]) {
916
a9e2aefa 917//********************************************************************
918// Station 4 **
919//********************************************************************
920 // indices 1 and 2 for first and second chambers in the station
921 // iChamber (first chamber) kept for other quanties than Z,
922 // assumed to be the same in both chambers
923 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[6];
924 iChamber2 =(AliMUONChamber*) (*fChambers)[7];
925 zpos1=iChamber1->Z();
926 zpos2=iChamber2->Z();
927 dstation = zpos2 - zpos1;
b64652f5 928// zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2; // not used any more
a9e2aefa 929
930//
931// Mother volume
932 tpar[0] = iChamber->RInner()-dframep;
933 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
21a18f36 934 tpar[2] = dstation/5;
a9e2aefa 935
936 gMC->Gsvolu("C07M", "TUBE", idAir, tpar, 3);
937 gMC->Gsvolu("C08M", "TUBE", idAir, tpar, 3);
938 gMC->Gspos("C07M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
939 gMC->Gspos("C08M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
1e8fff9c 940
a9e2aefa 941
f9f7c205 942 const Int_t nSlats4 = 6; // number of slats per quadrant
425ebd0a 943 const Int_t nPCB4[nSlats4] = {4,4,5,5,4,3}; // n PCB per slat
21a18f36 944 const Float_t xpos4[nSlats4] = {38.5, 40., 0., 0., 0., 0.};
6c5ddcfa 945 Float_t slatLength4[nSlats4];
1e8fff9c 946
947 // create and position the slat (mother) volumes
948
6c5ddcfa 949 char volNam7[5];
950 char volNam8[5];
1e8fff9c 951 Float_t xSlat4;
f9f7c205 952 Float_t ySlat4;
1e8fff9c 953
6c5ddcfa 954 for (i = 0; i<nSlats4; i++){
a083207d 955 slatLength4[i] = pcbLength * nPCB4[i] + 2. * dSlatLength;
956 xSlat4 = slatLength4[i]/2. - vFrameLength/2. + xpos4[i];
21a18f36 957 if (i==1 || i==0) slatLength4[i] -= 2. *dSlatLength; // frame out in PCB with circular border
a083207d 958 ySlat4 = sensHeight * i - yOverlap *i;
959
960 spar[0] = slatLength4[i]/2.;
961 spar[1] = slatHeight/2.;
962 spar[2] = slatWidth/2.*1.01;
963 Float_t dzCh4=spar[2]*1.01;
964 // zSlat to be checked (odd downstream or upstream?)
965 Float_t zSlat = (i%2 ==0)? spar[2] : -spar[2];
966 sprintf(volNam7,"S07%d",i);
967 gMC->Gsvolu(volNam7,"BOX",slatMaterial,spar,3);
968 gMC->Gspos(volNam7, i*4+1,"C07M", xSlat4, ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
969 gMC->Gspos(volNam7, i*4+2,"C07M",-xSlat4, ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
970 if (i>0) {
971 gMC->Gspos(volNam7, i*4+3,"C07M", xSlat4,-ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
972 gMC->Gspos(volNam7, i*4+4,"C07M",-xSlat4,-ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
973 }
974 sprintf(volNam8,"S08%d",i);
975 gMC->Gsvolu(volNam8,"BOX",slatMaterial,spar,3);
976 gMC->Gspos(volNam8, i*4+1,"C08M", xSlat4, ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
977 gMC->Gspos(volNam8, i*4+2,"C08M",-xSlat4, ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
978 if (i>0) {
979 gMC->Gspos(volNam8, i*4+3,"C08M", xSlat4,-ySlat4, zSlat+2.*dzCh4, 0, "ONLY");
980 gMC->Gspos(volNam8, i*4+4,"C08M",-xSlat4,-ySlat4, zSlat-2.*dzCh4, 0, "ONLY");
981 }
a9e2aefa 982 }
a083207d 983
3c084d9f 984
985 // create the panel volume
1e8fff9c 986
3c084d9f 987 gMC->Gsvolu("S07C","BOX",panelMaterial,panelpar,3);
988 gMC->Gsvolu("S08C","BOX",panelMaterial,panelpar,3);
a9e2aefa 989
3c084d9f 990 // create the rohacell volume
991
992 gMC->Gsvolu("S07R","BOX",rohaMaterial,rohapar,3);
993 gMC->Gsvolu("S08R","BOX",rohaMaterial,rohapar,3);
1e8fff9c 994
1e8fff9c 995 // create the insulating material volume
996
6c5ddcfa 997 gMC->Gsvolu("S07I","BOX",insuMaterial,insupar,3);
998 gMC->Gsvolu("S08I","BOX",insuMaterial,insupar,3);
1e8fff9c 999
3c084d9f 1000 // create the PCB volume
1e8fff9c 1001
3c084d9f 1002 gMC->Gsvolu("S07P","BOX",pcbMaterial,pcbpar,3);
1003 gMC->Gsvolu("S08P","BOX",pcbMaterial,pcbpar,3);
1e8fff9c 1004
3c084d9f 1005 // create the sensitive volumes,
1006
1007 gMC->Gsvolu("S07G","BOX",sensMaterial,0,0);
1008 gMC->Gsvolu("S08G","BOX",sensMaterial,0,0);
1e8fff9c 1009
1010 // create the vertical frame volume
1011
6c5ddcfa 1012 gMC->Gsvolu("S07V","BOX",vFrameMaterial,vFramepar,3);
1013 gMC->Gsvolu("S08V","BOX",vFrameMaterial,vFramepar,3);
1e8fff9c 1014
1015 // create the horizontal frame volume
1016
6c5ddcfa 1017 gMC->Gsvolu("S07H","BOX",hFrameMaterial,hFramepar,3);
1018 gMC->Gsvolu("S08H","BOX",hFrameMaterial,hFramepar,3);
1e8fff9c 1019
1020 // create the horizontal border volume
1021
6c5ddcfa 1022 gMC->Gsvolu("S07B","BOX",bFrameMaterial,bFramepar,3);
1023 gMC->Gsvolu("S08B","BOX",bFrameMaterial,bFramepar,3);
3c084d9f 1024
1025 index=0;
6c5ddcfa 1026 for (i = 0; i<nSlats4; i++){
1027 sprintf(volNam7,"S07%d",i);
1028 sprintf(volNam8,"S08%d",i);
1029 Float_t xvFrame = (slatLength4[i] - vFrameLength)/2.;
3c084d9f 1030 // position the vertical frames
21a18f36 1031 if (i!=1 && i!=0) {
a083207d 1032 gMC->Gspos("S07V",2*i-1,volNam7, xvFrame, 0., 0. , 0, "ONLY");
1033 gMC->Gspos("S07V",2*i ,volNam7,-xvFrame, 0., 0. , 0, "ONLY");
1034 gMC->Gspos("S08V",2*i-1,volNam8, xvFrame, 0., 0. , 0, "ONLY");
1035 gMC->Gspos("S08V",2*i ,volNam8,-xvFrame, 0., 0. , 0, "ONLY");
1036 }
3c084d9f 1037 // position the panels and the insulating material
6c5ddcfa 1038 for (j=0; j<nPCB4[i]; j++){
1e8fff9c 1039 index++;
6c5ddcfa 1040 Float_t xx = sensLength * (-nPCB4[i]/2.+j+.5);
3c084d9f 1041
1042 Float_t zPanel = spar[2] - panelpar[2];
1043 gMC->Gspos("S07C",2*index-1,volNam7, xx, 0., zPanel , 0, "ONLY");
1044 gMC->Gspos("S07C",2*index ,volNam7, xx, 0.,-zPanel , 0, "ONLY");
1045 gMC->Gspos("S08C",2*index-1,volNam8, xx, 0., zPanel , 0, "ONLY");
1046 gMC->Gspos("S08C",2*index ,volNam8, xx, 0.,-zPanel , 0, "ONLY");
1047
1048 gMC->Gspos("S07I",index,volNam7, xx, 0., 0 , 0, "ONLY");
1049 gMC->Gspos("S08I",index,volNam8, xx, 0., 0 , 0, "ONLY");
1e8fff9c 1050 }
a9e2aefa 1051 }
1e8fff9c 1052
3c084d9f 1053 // position the rohacell volume inside the panel volume
1054 gMC->Gspos("S07R",1,"S07C",0.,0.,0.,0,"ONLY");
1055 gMC->Gspos("S08R",1,"S08C",0.,0.,0.,0,"ONLY");
1056
1057 // position the PCB volume inside the insulating material volume
1058 gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
1059 gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
1060 // position the horizontal frame volume inside the PCB volume
1061 gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
1062 gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
1063 // position the sensitive volume inside the horizontal frame volume
1064 gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
1065 gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
3c084d9f 1066 // position the border volumes inside the PCB volume
1067 Float_t yborder = ( pcbHeight - bFrameHeight ) / 2.;
1068 gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
1069 gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
1070 gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
1071 gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
1072
1e8fff9c 1073 // create the NULOC volume and position it in the horizontal frame
3c084d9f 1074
6c5ddcfa 1075 gMC->Gsvolu("S07N","BOX",nulocMaterial,nulocpar,3);
1076 gMC->Gsvolu("S08N","BOX",nulocMaterial,nulocpar,3);
3c084d9f 1077 index = 0;
21a18f36 1078 for (xx = -xxmax; xx<=xxmax; xx+=2*nulocLength) {
1e8fff9c 1079 index++;
6c5ddcfa 1080 gMC->Gspos("S07N",2*index-1,"S07B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1081 gMC->Gspos("S07N",2*index ,"S07B", xx, 0., bFrameWidth/4., 0, "ONLY");
1082 gMC->Gspos("S08N",2*index-1,"S08B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1083 gMC->Gspos("S08N",2*index ,"S08B", xx, 0., bFrameWidth/4., 0, "ONLY");
1e8fff9c 1084 }
a083207d 1085
1086 // position the volumes approximating the circular section of the pipe
21a18f36 1087 Float_t yoffs = sensHeight/2. - yOverlap;
a083207d 1088 Float_t epsilon = 0.001;
1089 Int_t ndiv=6;
1090 Float_t divpar[3];
1091 Double_t dydiv= sensHeight/ndiv;
21a18f36 1092 Double_t ydiv = yoffs -dydiv;
a083207d 1093 Int_t imax=0;
a083207d 1094 imax = 1;
1095 Float_t rmin = 40.;
1096 Float_t z1 = -spar[2], z2=2*spar[2]*1.01;
1097 for (Int_t idiv=0;idiv<ndiv; idiv++){
1098 ydiv+= dydiv;
425ebd0a 1099 Float_t xdiv = 0.;
a083207d 1100 if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
1101 divpar[0] = (pcbLength-xdiv)/2.;
1102 divpar[1] = dydiv/2. - epsilon;
1103 divpar[2] = sensWidth/2.;
425ebd0a 1104 Float_t xvol=(pcbLength+xdiv)/2.+1.999;
a083207d 1105 Float_t yvol=ydiv + dydiv/2.;
1106 gMC->Gsposp("S07G",imax+4*idiv+1,"C07M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
1107 gMC->Gsposp("S08G",imax+4*idiv+1,"C08M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
1108 gMC->Gsposp("S07G",imax+4*idiv+2,"C07M", xvol,-yvol, z1+z2, 0, "ONLY",divpar,3);
1109 gMC->Gsposp("S08G",imax+4*idiv+2,"C08M", xvol,-yvol, z1+z2, 0, "ONLY",divpar,3);
1110 gMC->Gsposp("S07G",imax+4*idiv+3,"C07M",-xvol, yvol, z1-z2, 0, "ONLY",divpar,3);
1111 gMC->Gsposp("S08G",imax+4*idiv+3,"C08M",-xvol, yvol, z1-z2, 0, "ONLY",divpar,3);
1112 gMC->Gsposp("S07G",imax+4*idiv+4,"C07M",-xvol,-yvol, z1-z2, 0, "ONLY",divpar,3);
1113 gMC->Gsposp("S08G",imax+4*idiv+4,"C08M",-xvol,-yvol, z1-z2, 0, "ONLY",divpar,3);
1114 }
1115
1116
1117
1118
1119
b17c0c87 1120 }
3c084d9f 1121
b17c0c87 1122 if (stations[4]) {
1123
1e8fff9c 1124
a9e2aefa 1125//********************************************************************
1126// Station 5 **
1127//********************************************************************
1128 // indices 1 and 2 for first and second chambers in the station
1129 // iChamber (first chamber) kept for other quanties than Z,
1130 // assumed to be the same in both chambers
1131 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[8];
1132 iChamber2 =(AliMUONChamber*) (*fChambers)[9];
1133 zpos1=iChamber1->Z();
1134 zpos2=iChamber2->Z();
1135 dstation = zpos2 - zpos1;
b64652f5 1136// zfpos=-(iChamber->DGas()+dframez+iChamber->DAlu())/2; // not used any more
3c084d9f 1137
a9e2aefa 1138//
1139// Mother volume
1140 tpar[0] = iChamber->RInner()-dframep;
1141 tpar[1] = (iChamber->ROuter()+dframep)/TMath::Cos(phi);
3c084d9f 1142 tpar[2] = dstation/5.;
a9e2aefa 1143
1144 gMC->Gsvolu("C09M", "TUBE", idAir, tpar, 3);
1145 gMC->Gsvolu("C10M", "TUBE", idAir, tpar, 3);
1146 gMC->Gspos("C09M", 1, "ALIC", 0., 0., zpos1 , 0, "ONLY");
1147 gMC->Gspos("C10M", 1, "ALIC", 0., 0., zpos2 , 0, "ONLY");
a9e2aefa 1148
a9e2aefa 1149
1e8fff9c 1150 const Int_t nSlats5 = 7; // number of slats per quadrant
a083207d 1151 const Int_t nPCB5[nSlats5] = {5,5,6,6,5,4,3}; // n PCB per slat
21a18f36 1152 const Float_t xpos5[nSlats5] = {38.5, 40., 0., 0., 0., 0., 0.};
6c5ddcfa 1153 Float_t slatLength5[nSlats5];
6c5ddcfa 1154 char volNam9[5];
1155 char volNam10[5];
f9f7c205 1156 Float_t xSlat5;
1157 Float_t ySlat5;
1e8fff9c 1158
6c5ddcfa 1159 for (i = 0; i<nSlats5; i++){
1160 slatLength5[i] = pcbLength * nPCB5[i] + 2. * dSlatLength;
a083207d 1161 xSlat5 = slatLength5[i]/2. - vFrameLength/2. +xpos5[i];
21a18f36 1162 if (i==1 || i==0) slatLength5[i] -= 2. *dSlatLength; // frame out in PCB with circular border
f9f7c205 1163 ySlat5 = sensHeight * i - yOverlap * i;
6c5ddcfa 1164 spar[0] = slatLength5[i]/2.;
1165 spar[1] = slatHeight/2.;
3c084d9f 1166 spar[2] = slatWidth/2. * 1.01;
1167 Float_t dzCh5=spar[2]*1.01;
1e8fff9c 1168 // zSlat to be checked (odd downstream or upstream?)
3c084d9f 1169 Float_t zSlat = (i%2 ==0)? -spar[2] : spar[2];
6c5ddcfa 1170 sprintf(volNam9,"S09%d",i);
1171 gMC->Gsvolu(volNam9,"BOX",slatMaterial,spar,3);
e1ad7d45 1172 gMC->Gspos(volNam9, i*4+1,"C09M", xSlat5, ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1173 gMC->Gspos(volNam9, i*4+2,"C09M",-xSlat5, ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
f9f7c205 1174 if (i>0) {
3c084d9f 1175 gMC->Gspos(volNam9, i*4+3,"C09M", xSlat5,-ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1176 gMC->Gspos(volNam9, i*4+4,"C09M",-xSlat5,-ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
f9f7c205 1177 }
6c5ddcfa 1178 sprintf(volNam10,"S10%d",i);
1179 gMC->Gsvolu(volNam10,"BOX",slatMaterial,spar,3);
e1ad7d45 1180 gMC->Gspos(volNam10, i*4+1,"C10M", xSlat5, ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1181 gMC->Gspos(volNam10, i*4+2,"C10M",-xSlat5, ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
f9f7c205 1182 if (i>0) {
3c084d9f 1183 gMC->Gspos(volNam10, i*4+3,"C10M", xSlat5,-ySlat5, zSlat+2.*dzCh5, 0, "ONLY");
1184 gMC->Gspos(volNam10, i*4+4,"C10M",-xSlat5,-ySlat5, zSlat-2.*dzCh5, 0, "ONLY");
f9f7c205 1185 }
a9e2aefa 1186 }
1187
1e8fff9c 1188 // create the panel volume
3c084d9f 1189
6c5ddcfa 1190 gMC->Gsvolu("S09C","BOX",panelMaterial,panelpar,3);
1191 gMC->Gsvolu("S10C","BOX",panelMaterial,panelpar,3);
3c084d9f 1192
1e8fff9c 1193 // create the rohacell volume
3c084d9f 1194
6c5ddcfa 1195 gMC->Gsvolu("S09R","BOX",rohaMaterial,rohapar,3);
1196 gMC->Gsvolu("S10R","BOX",rohaMaterial,rohapar,3);
3c084d9f 1197
1198 // create the insulating material volume
1199
1200 gMC->Gsvolu("S09I","BOX",insuMaterial,insupar,3);
1201 gMC->Gsvolu("S10I","BOX",insuMaterial,insupar,3);
1202
1203 // create the PCB volume
1204
1205 gMC->Gsvolu("S09P","BOX",pcbMaterial,pcbpar,3);
1206 gMC->Gsvolu("S10P","BOX",pcbMaterial,pcbpar,3);
1207
1208 // create the sensitive volumes,
1209
1210 gMC->Gsvolu("S09G","BOX",sensMaterial,0,0);
1211 gMC->Gsvolu("S10G","BOX",sensMaterial,0,0);
3c084d9f 1212
1e8fff9c 1213 // create the vertical frame volume
3c084d9f 1214
6c5ddcfa 1215 gMC->Gsvolu("S09V","BOX",vFrameMaterial,vFramepar,3);
1216 gMC->Gsvolu("S10V","BOX",vFrameMaterial,vFramepar,3);
1e8fff9c 1217
1218 // create the horizontal frame volume
3c084d9f 1219
6c5ddcfa 1220 gMC->Gsvolu("S09H","BOX",hFrameMaterial,hFramepar,3);
1221 gMC->Gsvolu("S10H","BOX",hFrameMaterial,hFramepar,3);
1e8fff9c 1222
1223 // create the horizontal border volume
1224
6c5ddcfa 1225 gMC->Gsvolu("S09B","BOX",bFrameMaterial,bFramepar,3);
1226 gMC->Gsvolu("S10B","BOX",bFrameMaterial,bFramepar,3);
1e8fff9c 1227
3c084d9f 1228 index=0;
6c5ddcfa 1229 for (i = 0; i<nSlats5; i++){
1230 sprintf(volNam9,"S09%d",i);
1231 sprintf(volNam10,"S10%d",i);
1232 Float_t xvFrame = (slatLength5[i] - vFrameLength)/2.;
3c084d9f 1233 // position the vertical frames
21a18f36 1234 if (i!=1 && i!=0) {
a083207d 1235 gMC->Gspos("S09V",2*i-1,volNam9, xvFrame, 0., 0. , 0, "ONLY");
1236 gMC->Gspos("S09V",2*i ,volNam9,-xvFrame, 0., 0. , 0, "ONLY");
1237 gMC->Gspos("S10V",2*i-1,volNam10, xvFrame, 0., 0. , 0, "ONLY");
1238 gMC->Gspos("S10V",2*i ,volNam10,-xvFrame, 0., 0. , 0, "ONLY");
1239 }
3c084d9f 1240
1241 // position the panels and the insulating material
6c5ddcfa 1242 for (j=0; j<nPCB5[i]; j++){
1e8fff9c 1243 index++;
3c084d9f 1244 Float_t xx = sensLength * (-nPCB5[i]/2.+j+.5);
1245
1246 Float_t zPanel = spar[2] - panelpar[2];
1247 gMC->Gspos("S09C",2*index-1,volNam9, xx, 0., zPanel , 0, "ONLY");
1248 gMC->Gspos("S09C",2*index ,volNam9, xx, 0.,-zPanel , 0, "ONLY");
1249 gMC->Gspos("S10C",2*index-1,volNam10, xx, 0., zPanel , 0, "ONLY");
1250 gMC->Gspos("S10C",2*index ,volNam10, xx, 0.,-zPanel , 0, "ONLY");
1251
1252 gMC->Gspos("S09I",index,volNam9, xx, 0., 0 , 0, "ONLY");
1253 gMC->Gspos("S10I",index,volNam10, xx, 0., 0 , 0, "ONLY");
1e8fff9c 1254 }
1255 }
1256
3c084d9f 1257 // position the rohacell volume inside the panel volume
1258 gMC->Gspos("S09R",1,"S09C",0.,0.,0.,0,"ONLY");
1259 gMC->Gspos("S10R",1,"S10C",0.,0.,0.,0,"ONLY");
1260
1261 // position the PCB volume inside the insulating material volume
1262 gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
1263 gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
1264 // position the horizontal frame volume inside the PCB volume
1265 gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
1266 gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
1267 // position the sensitive volume inside the horizontal frame volume
1268 gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
1269 gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
3c084d9f 1270 // position the border volumes inside the PCB volume
1271 Float_t yborder = ( pcbHeight - bFrameHeight ) / 2.;
1272 gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
1273 gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
1274 gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
1275 gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
1276
1e8fff9c 1277 // create the NULOC volume and position it in the horizontal frame
3c084d9f 1278
6c5ddcfa 1279 gMC->Gsvolu("S09N","BOX",nulocMaterial,nulocpar,3);
1280 gMC->Gsvolu("S10N","BOX",nulocMaterial,nulocpar,3);
3c084d9f 1281 index = 0;
21a18f36 1282 for (xx = -xxmax; xx<=xxmax; xx+=2*nulocLength) {
1e8fff9c 1283 index++;
6c5ddcfa 1284 gMC->Gspos("S09N",2*index-1,"S09B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1285 gMC->Gspos("S09N",2*index ,"S09B", xx, 0., bFrameWidth/4., 0, "ONLY");
1286 gMC->Gspos("S10N",2*index-1,"S10B", xx, 0.,-bFrameWidth/4., 0, "ONLY");
1287 gMC->Gspos("S10N",2*index ,"S10B", xx, 0., bFrameWidth/4., 0, "ONLY");
a9e2aefa 1288 }
a083207d 1289 // position the volumes approximating the circular section of the pipe
21a18f36 1290 Float_t yoffs = sensHeight/2. - yOverlap;
a083207d 1291 Float_t epsilon = 0.001;
1292 Int_t ndiv=6;
1293 Float_t divpar[3];
1294 Double_t dydiv= sensHeight/ndiv;
21a18f36 1295 Double_t ydiv = yoffs -dydiv;
a083207d 1296 Int_t imax=0;
1297 // for (Int_t islat=0; islat<nSlats3; islat++) imax += nPCB3[islat];
1298 imax = 1;
1299 Float_t rmin = 40.;
1300 Float_t z1 = spar[2], z2=2*spar[2]*1.01;
1301 for (Int_t idiv=0;idiv<ndiv; idiv++){
1302 ydiv+= dydiv;
425ebd0a 1303 Float_t xdiv = 0.;
a083207d 1304 if (ydiv<rmin) xdiv= rmin * TMath::Sin( TMath::ACos(ydiv/rmin) );
1305 divpar[0] = (pcbLength-xdiv)/2.;
1306 divpar[1] = dydiv/2. - epsilon;
1307 divpar[2] = sensWidth/2.;
425ebd0a 1308 Float_t xvol=(pcbLength+xdiv)/2. + 1.999;
a083207d 1309 Float_t yvol=ydiv + dydiv/2.;
1310 gMC->Gsposp("S09G",imax+4*idiv+1,"C09M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
1311 gMC->Gsposp("S10G",imax+4*idiv+1,"C10M", xvol, yvol, z1+z2, 0, "ONLY",divpar,3);
1312 gMC->Gsposp("S09G",imax+4*idiv+2,"C09M", xvol,-yvol, z1+z2, 0, "ONLY",divpar,3);
1313 gMC->Gsposp("S10G",imax+4*idiv+2,"C10M", xvol,-yvol, z1+z2, 0, "ONLY",divpar,3);
1314 gMC->Gsposp("S09G",imax+4*idiv+3,"C09M",-xvol, yvol, z1-z2, 0, "ONLY",divpar,3);
1315 gMC->Gsposp("S10G",imax+4*idiv+3,"C10M",-xvol, yvol, z1-z2, 0, "ONLY",divpar,3);
1316 gMC->Gsposp("S09G",imax+4*idiv+4,"C09M",-xvol,-yvol, z1-z2, 0, "ONLY",divpar,3);
1317 gMC->Gsposp("S10G",imax+4*idiv+4,"C10M",-xvol,-yvol, z1-z2, 0, "ONLY",divpar,3);
1318 }
1319
b17c0c87 1320 }
1321
1e8fff9c 1322
a9e2aefa 1323///////////////////////////////////////
1324// GEOMETRY FOR THE TRIGGER CHAMBERS //
1325///////////////////////////////////////
1326
1327// 03/00 P. Dupieux : introduce a slighly more realistic
1328// geom. of the trigger readout planes with
1329// 2 Zpos per trigger plane (alternate
1330// between left and right of the trigger)
1331
1332// Parameters of the Trigger Chambers
1333
236fe2c5 1334// DP03-01 introduce dead zone of +/- 2 cm arround x=0 (as in TDR, fig3.27)
1335 const Float_t kDXZERO=2.;
a9e2aefa 1336 const Float_t kXMC1MIN=34.;
1337 const Float_t kXMC1MED=51.;
1338 const Float_t kXMC1MAX=272.;
1339 const Float_t kYMC1MIN=34.;
1340 const Float_t kYMC1MAX=51.;
1341 const Float_t kRMIN1=50.;
236fe2c5 1342// DP03-01 const Float_t kRMAX1=62.;
1343 const Float_t kRMAX1=64.;
a9e2aefa 1344 const Float_t kRMIN2=50.;
236fe2c5 1345// DP03-01 const Float_t kRMAX2=66.;
1346 const Float_t kRMAX2=68.;
a9e2aefa 1347
1348// zposition of the middle of the gas gap in mother vol
1349 const Float_t kZMCm=-3.6;
1350 const Float_t kZMCp=+3.6;
1351
1352
1353// TRIGGER STATION 1 - TRIGGER STATION 1 - TRIGGER STATION 1
1354
1355 // iChamber 1 and 2 for first and second chambers in the station
1356 // iChamber (first chamber) kept for other quanties than Z,
1357 // assumed to be the same in both chambers
1358 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[10];
1359 iChamber2 =(AliMUONChamber*) (*fChambers)[11];
1360
1361 // 03/00
1362 // zpos1 and zpos2 are now the middle of the first and second
1363 // plane of station 1 :
1364 // zpos1=(16075+15995)/2=16035 mm, thick/2=40 mm
1365 // zpos2=(16225+16145)/2=16185 mm, thick/2=40 mm
1366 //
1367 // zpos1m=15999 mm , zpos1p=16071 mm (middles of gas gaps)
1368 // zpos2m=16149 mm , zpos2p=16221 mm (middles of gas gaps)
1369 // rem : the total thickness accounts for 1 mm of al on both
1370 // side of the RPCs (see zpos1 and zpos2), as previously
1371
1372 zpos1=iChamber1->Z();
1373 zpos2=iChamber2->Z();
1374
1375
1376// Mother volume definition
1377 tpar[0] = iChamber->RInner();
1378 tpar[1] = iChamber->ROuter();
1379 tpar[2] = 4.0;
1380 gMC->Gsvolu("CM11", "TUBE", idAir, tpar, 3);
1381 gMC->Gsvolu("CM12", "TUBE", idAir, tpar, 3);
1382
1383// Definition of the flange between the beam shielding and the RPC
1384 tpar[0]= kRMIN1;
1385 tpar[1]= kRMAX1;
1386 tpar[2]= 4.0;
1387
1388 gMC->Gsvolu("CF1A", "TUBE", idAlu1, tpar, 3); //Al
1389 gMC->Gspos("CF1A", 1, "CM11", 0., 0., 0., 0, "MANY");
1390 gMC->Gspos("CF1A", 2, "CM12", 0., 0., 0., 0, "MANY");
1391
1392
1393// FIRST PLANE OF STATION 1
1394
1395// ratios of zpos1m/zpos1p and inverse for first plane
1396 Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
1397 Float_t zpm=1./zmp;
1398
1399
1400// Definition of prototype for chambers in the first plane
1401
1402 tpar[0]= 0.;
1403 tpar[1]= 0.;
1404 tpar[2]= 0.;
1405
1406 gMC->Gsvolu("CC1A", "BOX ", idAlu1, tpar, 0); //Al
1407 gMC->Gsvolu("CB1A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1408 gMC->Gsvolu("CG1A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1409
1410// chamber type A
1411 tpar[0] = -1.;
1412 tpar[1] = -1.;
1413
236fe2c5 1414// DP03-01 const Float_t kXMC1A=kXMC1MED+(kXMC1MAX-kXMC1MED)/2.;
1415 const Float_t kXMC1A=kDXZERO+kXMC1MED+(kXMC1MAX-kXMC1MED)/2.;
a9e2aefa 1416 const Float_t kYMC1Am=0.;
1417 const Float_t kYMC1Ap=0.;
1418
1419 tpar[2] = 0.1;
1420 gMC->Gsposp("CG1A", 1, "CB1A", 0., 0., 0., 0, "ONLY",tpar,3);
1421 tpar[2] = 0.3;
1422 gMC->Gsposp("CB1A", 1, "CC1A", 0., 0., 0., 0, "ONLY",tpar,3);
1423
1424 tpar[2] = 0.4;
1425 tpar[0] = (kXMC1MAX-kXMC1MED)/2.;
1426 tpar[1] = kYMC1MIN;
1427
1428 gMC->Gsposp("CC1A", 1, "CM11",kXMC1A,kYMC1Am,kZMCm, 0, "ONLY", tpar, 3);
1429 gMC->Gsposp("CC1A", 2, "CM11",-kXMC1A,kYMC1Ap,kZMCp, 0, "ONLY", tpar, 3);
1430
1431// chamber type B
1432 Float_t tpar1save=tpar[1];
1433 Float_t y1msave=kYMC1Am;
1434 Float_t y1psave=kYMC1Ap;
1435
1436 tpar[0] = (kXMC1MAX-kXMC1MIN)/2.;
1437 tpar[1] = (kYMC1MAX-kYMC1MIN)/2.;
1438
236fe2c5 1439// DP03-01 const Float_t kXMC1B=kXMC1MIN+tpar[0];
1440 const Float_t kXMC1B=kDXZERO+kXMC1MIN+tpar[0];
a9e2aefa 1441 const Float_t kYMC1Bp=(y1msave+tpar1save)*zpm+tpar[1];
1442 const Float_t kYMC1Bm=(y1psave+tpar1save)*zmp+tpar[1];
1443
1444 gMC->Gsposp("CC1A", 3, "CM11",kXMC1B,kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
1445 gMC->Gsposp("CC1A", 4, "CM11",-kXMC1B,kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
1446 gMC->Gsposp("CC1A", 5, "CM11",kXMC1B,-kYMC1Bp,kZMCp, 0, "ONLY", tpar, 3);
1447 gMC->Gsposp("CC1A", 6, "CM11",-kXMC1B,-kYMC1Bm,kZMCm, 0, "ONLY", tpar, 3);
1448
1449// chamber type C (end of type B !!)
1450 tpar1save=tpar[1];
1451 y1msave=kYMC1Bm;
1452 y1psave=kYMC1Bp;
1453
1454 tpar[0] = kXMC1MAX/2;
1455 tpar[1] = kYMC1MAX/2;
1456
236fe2c5 1457
1458// DP03-01 const Float_t kXMC1C=tpar[0];
1459 const Float_t kXMC1C=kDXZERO+tpar[0];
a9e2aefa 1460// warning : same Z than type B
1461 const Float_t kYMC1Cp=(y1psave+tpar1save)*1.+tpar[1];
1462 const Float_t kYMC1Cm=(y1msave+tpar1save)*1.+tpar[1];
1463
1464 gMC->Gsposp("CC1A", 7, "CM11",kXMC1C,kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1465 gMC->Gsposp("CC1A", 8, "CM11",-kXMC1C,kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1466 gMC->Gsposp("CC1A", 9, "CM11",kXMC1C,-kYMC1Cp,kZMCp, 0, "ONLY", tpar, 3);
1467 gMC->Gsposp("CC1A", 10, "CM11",-kXMC1C,-kYMC1Cm,kZMCm, 0, "ONLY", tpar, 3);
1468
1469// chamber type D, E and F (same size)
1470 tpar1save=tpar[1];
1471 y1msave=kYMC1Cm;
1472 y1psave=kYMC1Cp;
1473
1474 tpar[0] = kXMC1MAX/2.;
1475 tpar[1] = kYMC1MIN;
1476
236fe2c5 1477// DP03-01 const Float_t kXMC1D=tpar[0];
1478 const Float_t kXMC1D=kDXZERO+tpar[0];
a9e2aefa 1479 const Float_t kYMC1Dp=(y1msave+tpar1save)*zpm+tpar[1];
1480 const Float_t kYMC1Dm=(y1psave+tpar1save)*zmp+tpar[1];
1481
1482 gMC->Gsposp("CC1A", 11, "CM11",kXMC1D,kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1483 gMC->Gsposp("CC1A", 12, "CM11",-kXMC1D,kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1484 gMC->Gsposp("CC1A", 13, "CM11",kXMC1D,-kYMC1Dm,kZMCm, 0, "ONLY", tpar, 3);
1485 gMC->Gsposp("CC1A", 14, "CM11",-kXMC1D,-kYMC1Dp,kZMCp, 0, "ONLY", tpar, 3);
1486
1487
1488 tpar1save=tpar[1];
1489 y1msave=kYMC1Dm;
1490 y1psave=kYMC1Dp;
1491 const Float_t kYMC1Ep=(y1msave+tpar1save)*zpm+tpar[1];
1492 const Float_t kYMC1Em=(y1psave+tpar1save)*zmp+tpar[1];
1493
1494 gMC->Gsposp("CC1A", 15, "CM11",kXMC1D,kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1495 gMC->Gsposp("CC1A", 16, "CM11",-kXMC1D,kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1496 gMC->Gsposp("CC1A", 17, "CM11",kXMC1D,-kYMC1Ep,kZMCp, 0, "ONLY", tpar, 3);
1497 gMC->Gsposp("CC1A", 18, "CM11",-kXMC1D,-kYMC1Em,kZMCm, 0, "ONLY", tpar, 3);
1498
1499 tpar1save=tpar[1];
1500 y1msave=kYMC1Em;
1501 y1psave=kYMC1Ep;
1502 const Float_t kYMC1Fp=(y1msave+tpar1save)*zpm+tpar[1];
1503 const Float_t kYMC1Fm=(y1psave+tpar1save)*zmp+tpar[1];
1504
1505 gMC->Gsposp("CC1A", 19, "CM11",kXMC1D,kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1506 gMC->Gsposp("CC1A", 20, "CM11",-kXMC1D,kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1507 gMC->Gsposp("CC1A", 21, "CM11",kXMC1D,-kYMC1Fm,kZMCm, 0, "ONLY", tpar, 3);
1508 gMC->Gsposp("CC1A", 22, "CM11",-kXMC1D,-kYMC1Fp,kZMCp, 0, "ONLY", tpar, 3);
1509
1510// Positioning first plane in ALICE
1511 gMC->Gspos("CM11", 1, "ALIC", 0., 0., zpos1, 0, "ONLY");
1512
1513// End of geometry definition for the first plane of station 1
1514
1515
1516
1517// SECOND PLANE OF STATION 1 : proj ratio = zpos2/zpos1
1518
1519 const Float_t kZ12=zpos2/zpos1;
1520
1521// Definition of prototype for chambers in the second plane of station 1
1522
1523 tpar[0]= 0.;
1524 tpar[1]= 0.;
1525 tpar[2]= 0.;
1526
1527 gMC->Gsvolu("CC2A", "BOX ", idAlu1, tpar, 0); //Al
1528 gMC->Gsvolu("CB2A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1529 gMC->Gsvolu("CG2A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1530
1531// chamber type A
1532 tpar[0] = -1.;
1533 tpar[1] = -1.;
1534
1535 const Float_t kXMC2A=kXMC1A*kZ12;
1536 const Float_t kYMC2Am=0.;
1537 const Float_t kYMC2Ap=0.;
1538
1539 tpar[2] = 0.1;
1540 gMC->Gsposp("CG2A", 1, "CB2A", 0., 0., 0., 0, "ONLY",tpar,3);
1541 tpar[2] = 0.3;
1542 gMC->Gsposp("CB2A", 1, "CC2A", 0., 0., 0., 0, "ONLY",tpar,3);
1543
1544 tpar[2] = 0.4;
1545 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ12;
1546 tpar[1] = kYMC1MIN*kZ12;
1547
1548 gMC->Gsposp("CC2A", 1, "CM12",kXMC2A,kYMC2Am,kZMCm, 0, "ONLY", tpar, 3);
1549 gMC->Gsposp("CC2A", 2, "CM12",-kXMC2A,kYMC2Ap,kZMCp, 0, "ONLY", tpar, 3);
1550
1551
1552// chamber type B
1553
1554 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ12;
1555 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ12;
1556
1557 const Float_t kXMC2B=kXMC1B*kZ12;
1558 const Float_t kYMC2Bp=kYMC1Bp*kZ12;
1559 const Float_t kYMC2Bm=kYMC1Bm*kZ12;
1560 gMC->Gsposp("CC2A", 3, "CM12",kXMC2B,kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1561 gMC->Gsposp("CC2A", 4, "CM12",-kXMC2B,kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1562 gMC->Gsposp("CC2A", 5, "CM12",kXMC2B,-kYMC2Bp,kZMCp, 0, "ONLY", tpar, 3);
1563 gMC->Gsposp("CC2A", 6, "CM12",-kXMC2B,-kYMC2Bm,kZMCm, 0, "ONLY", tpar, 3);
1564
1565
1566// chamber type C (end of type B !!)
1567
1568 tpar[0] = (kXMC1MAX/2)*kZ12;
1569 tpar[1] = (kYMC1MAX/2)*kZ12;
1570
1571 const Float_t kXMC2C=kXMC1C*kZ12;
1572 const Float_t kYMC2Cp=kYMC1Cp*kZ12;
1573 const Float_t kYMC2Cm=kYMC1Cm*kZ12;
1574 gMC->Gsposp("CC2A", 7, "CM12",kXMC2C,kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1575 gMC->Gsposp("CC2A", 8, "CM12",-kXMC2C,kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1576 gMC->Gsposp("CC2A", 9, "CM12",kXMC2C,-kYMC2Cp,kZMCp, 0, "ONLY", tpar, 3);
1577 gMC->Gsposp("CC2A", 10, "CM12",-kXMC2C,-kYMC2Cm,kZMCm, 0, "ONLY", tpar, 3);
1578
1579// chamber type D, E and F (same size)
1580
1581 tpar[0] = (kXMC1MAX/2.)*kZ12;
1582 tpar[1] = kYMC1MIN*kZ12;
1583
1584 const Float_t kXMC2D=kXMC1D*kZ12;
1585 const Float_t kYMC2Dp=kYMC1Dp*kZ12;
1586 const Float_t kYMC2Dm=kYMC1Dm*kZ12;
1587 gMC->Gsposp("CC2A", 11, "CM12",kXMC2D,kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1588 gMC->Gsposp("CC2A", 12, "CM12",-kXMC2D,kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1589 gMC->Gsposp("CC2A", 13, "CM12",kXMC2D,-kYMC2Dm,kZMCm, 0, "ONLY", tpar, 3);
1590 gMC->Gsposp("CC2A", 14, "CM12",-kXMC2D,-kYMC2Dp,kZMCp, 0, "ONLY", tpar, 3);
1591
1592 const Float_t kYMC2Ep=kYMC1Ep*kZ12;
1593 const Float_t kYMC2Em=kYMC1Em*kZ12;
1594 gMC->Gsposp("CC2A", 15, "CM12",kXMC2D,kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1595 gMC->Gsposp("CC2A", 16, "CM12",-kXMC2D,kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1596 gMC->Gsposp("CC2A", 17, "CM12",kXMC2D,-kYMC2Ep,kZMCp, 0, "ONLY", tpar, 3);
1597 gMC->Gsposp("CC2A", 18, "CM12",-kXMC2D,-kYMC2Em,kZMCm, 0, "ONLY", tpar, 3);
1598
1599
1600 const Float_t kYMC2Fp=kYMC1Fp*kZ12;
1601 const Float_t kYMC2Fm=kYMC1Fm*kZ12;
1602 gMC->Gsposp("CC2A", 19, "CM12",kXMC2D,kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1603 gMC->Gsposp("CC2A", 20, "CM12",-kXMC2D,kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1604 gMC->Gsposp("CC2A", 21, "CM12",kXMC2D,-kYMC2Fm,kZMCm, 0, "ONLY", tpar, 3);
1605 gMC->Gsposp("CC2A", 22, "CM12",-kXMC2D,-kYMC2Fp,kZMCp, 0, "ONLY", tpar, 3);
1606
1607// Positioning second plane of station 1 in ALICE
1608
1609 gMC->Gspos("CM12", 1, "ALIC", 0., 0., zpos2, 0, "ONLY");
1610
1611// End of geometry definition for the second plane of station 1
1612
1613
1614
1615// TRIGGER STATION 2 - TRIGGER STATION 2 - TRIGGER STATION 2
1616
1617 // 03/00
1618 // zpos3 and zpos4 are now the middle of the first and second
1619 // plane of station 2 :
1620 // zpos3=(17075+16995)/2=17035 mm, thick/2=40 mm
1621 // zpos4=(17225+17145)/2=17185 mm, thick/2=40 mm
1622 //
1623 // zpos3m=16999 mm , zpos3p=17071 mm (middles of gas gaps)
1624 // zpos4m=17149 mm , zpos4p=17221 mm (middles of gas gaps)
1625 // rem : the total thickness accounts for 1 mm of al on both
1626 // side of the RPCs (see zpos3 and zpos4), as previously
1627 iChamber1 = iChamber = (AliMUONChamber*) (*fChambers)[12];
1628 iChamber2 =(AliMUONChamber*) (*fChambers)[13];
1629 Float_t zpos3=iChamber1->Z();
1630 Float_t zpos4=iChamber2->Z();
1631
1632
1633// Mother volume definition
1634 tpar[0] = iChamber->RInner();
1635 tpar[1] = iChamber->ROuter();
1636 tpar[2] = 4.0;
1637
1638 gMC->Gsvolu("CM21", "TUBE", idAir, tpar, 3);
1639 gMC->Gsvolu("CM22", "TUBE", idAir, tpar, 3);
1640
1641// Definition of the flange between the beam shielding and the RPC
1642// ???? interface shielding
1643
1644 tpar[0]= kRMIN2;
1645 tpar[1]= kRMAX2;
1646 tpar[2]= 4.0;
1647
1648 gMC->Gsvolu("CF2A", "TUBE", idAlu1, tpar, 3); //Al
1649 gMC->Gspos("CF2A", 1, "CM21", 0., 0., 0., 0, "MANY");
1650 gMC->Gspos("CF2A", 2, "CM22", 0., 0., 0., 0, "MANY");
1651
1652
1653
1654// FIRST PLANE OF STATION 2 : proj ratio = zpos3/zpos1
1655
1656 const Float_t kZ13=zpos3/zpos1;
1657
1658// Definition of prototype for chambers in the first plane of station 2
1659 tpar[0]= 0.;
1660 tpar[1]= 0.;
1661 tpar[2]= 0.;
1662
1663 gMC->Gsvolu("CC3A", "BOX ", idAlu1, tpar, 0); //Al
1664 gMC->Gsvolu("CB3A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1665 gMC->Gsvolu("CG3A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1666
1667
1668// chamber type A
1669 tpar[0] = -1.;
1670 tpar[1] = -1.;
1671
1672 const Float_t kXMC3A=kXMC1A*kZ13;
1673 const Float_t kYMC3Am=0.;
1674 const Float_t kYMC3Ap=0.;
1675
1676 tpar[2] = 0.1;
1677 gMC->Gsposp("CG3A", 1, "CB3A", 0., 0., 0., 0, "ONLY",tpar,3);
1678 tpar[2] = 0.3;
1679 gMC->Gsposp("CB3A", 1, "CC3A", 0., 0., 0., 0, "ONLY",tpar,3);
1680
1681 tpar[2] = 0.4;
1682 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ13;
1683 tpar[1] = kYMC1MIN*kZ13;
1684 gMC->Gsposp("CC3A", 1, "CM21",kXMC3A,kYMC3Am,kZMCm, 0, "ONLY", tpar, 3);
1685 gMC->Gsposp("CC3A", 2, "CM21",-kXMC3A,kYMC3Ap,kZMCp, 0, "ONLY", tpar, 3);
1686
1687
1688// chamber type B
1689 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ13;
1690 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ13;
1691
1692 const Float_t kXMC3B=kXMC1B*kZ13;
1693 const Float_t kYMC3Bp=kYMC1Bp*kZ13;
1694 const Float_t kYMC3Bm=kYMC1Bm*kZ13;
1695 gMC->Gsposp("CC3A", 3, "CM21",kXMC3B,kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1696 gMC->Gsposp("CC3A", 4, "CM21",-kXMC3B,kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1697 gMC->Gsposp("CC3A", 5, "CM21",kXMC3B,-kYMC3Bp,kZMCp, 0, "ONLY", tpar, 3);
1698 gMC->Gsposp("CC3A", 6, "CM21",-kXMC3B,-kYMC3Bm,kZMCm, 0, "ONLY", tpar, 3);
1699
1700
1701// chamber type C (end of type B !!)
1702 tpar[0] = (kXMC1MAX/2)*kZ13;
1703 tpar[1] = (kYMC1MAX/2)*kZ13;
1704
1705 const Float_t kXMC3C=kXMC1C*kZ13;
1706 const Float_t kYMC3Cp=kYMC1Cp*kZ13;
1707 const Float_t kYMC3Cm=kYMC1Cm*kZ13;
1708 gMC->Gsposp("CC3A", 7, "CM21",kXMC3C,kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1709 gMC->Gsposp("CC3A", 8, "CM21",-kXMC3C,kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1710 gMC->Gsposp("CC3A", 9, "CM21",kXMC3C,-kYMC3Cp,kZMCp, 0, "ONLY", tpar, 3);
1711 gMC->Gsposp("CC3A", 10, "CM21",-kXMC3C,-kYMC3Cm,kZMCm, 0, "ONLY", tpar, 3);
1712
1713
1714// chamber type D, E and F (same size)
1715
1716 tpar[0] = (kXMC1MAX/2.)*kZ13;
1717 tpar[1] = kYMC1MIN*kZ13;
1718
1719 const Float_t kXMC3D=kXMC1D*kZ13;
1720 const Float_t kYMC3Dp=kYMC1Dp*kZ13;
1721 const Float_t kYMC3Dm=kYMC1Dm*kZ13;
1722 gMC->Gsposp("CC3A", 11, "CM21",kXMC3D,kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1723 gMC->Gsposp("CC3A", 12, "CM21",-kXMC3D,kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1724 gMC->Gsposp("CC3A", 13, "CM21",kXMC3D,-kYMC3Dm,kZMCm, 0, "ONLY", tpar, 3);
1725 gMC->Gsposp("CC3A", 14, "CM21",-kXMC3D,-kYMC3Dp,kZMCp, 0, "ONLY", tpar, 3);
1726
1727 const Float_t kYMC3Ep=kYMC1Ep*kZ13;
1728 const Float_t kYMC3Em=kYMC1Em*kZ13;
1729 gMC->Gsposp("CC3A", 15, "CM21",kXMC3D,kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1730 gMC->Gsposp("CC3A", 16, "CM21",-kXMC3D,kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1731 gMC->Gsposp("CC3A", 17, "CM21",kXMC3D,-kYMC3Ep,kZMCp, 0, "ONLY", tpar, 3);
1732 gMC->Gsposp("CC3A", 18, "CM21",-kXMC3D,-kYMC3Em,kZMCm, 0, "ONLY", tpar, 3);
1733
1734 const Float_t kYMC3Fp=kYMC1Fp*kZ13;
1735 const Float_t kYMC3Fm=kYMC1Fm*kZ13;
1736 gMC->Gsposp("CC3A", 19, "CM21",kXMC3D,kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1737 gMC->Gsposp("CC3A", 20, "CM21",-kXMC3D,kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1738 gMC->Gsposp("CC3A", 21, "CM21",kXMC3D,-kYMC3Fm,kZMCm, 0, "ONLY", tpar, 3);
1739 gMC->Gsposp("CC3A", 22, "CM21",-kXMC3D,-kYMC3Fp,kZMCp, 0, "ONLY", tpar, 3);
1740
1741
1742// Positioning first plane of station 2 in ALICE
1743
1744 gMC->Gspos("CM21", 1, "ALIC", 0., 0., zpos3, 0, "ONLY");
1745
1746// End of geometry definition for the first plane of station 2
1747
1748
1749
1750
1751// SECOND PLANE OF STATION 2 : proj ratio = zpos4/zpos1
1752
1753 const Float_t kZ14=zpos4/zpos1;
1754
1755// Definition of prototype for chambers in the second plane of station 2
1756
1757 tpar[0]= 0.;
1758 tpar[1]= 0.;
1759 tpar[2]= 0.;
1760
1761 gMC->Gsvolu("CC4A", "BOX ", idAlu1, tpar, 0); //Al
1762 gMC->Gsvolu("CB4A", "BOX ", idtmed[1107], tpar, 0); //Bakelite
1763 gMC->Gsvolu("CG4A", "BOX ", idtmed[1106], tpar, 0); //Gas streamer
1764
1765// chamber type A
1766 tpar[0] = -1.;
1767 tpar[1] = -1.;
1768
1769 const Float_t kXMC4A=kXMC1A*kZ14;
1770 const Float_t kYMC4Am=0.;
1771 const Float_t kYMC4Ap=0.;
1772
1773 tpar[2] = 0.1;
1774 gMC->Gsposp("CG4A", 1, "CB4A", 0., 0., 0., 0, "ONLY",tpar,3);
1775 tpar[2] = 0.3;
1776 gMC->Gsposp("CB4A", 1, "CC4A", 0., 0., 0., 0, "ONLY",tpar,3);
1777
1778 tpar[2] = 0.4;
1779 tpar[0] = ((kXMC1MAX-kXMC1MED)/2.)*kZ14;
1780 tpar[1] = kYMC1MIN*kZ14;
1781 gMC->Gsposp("CC4A", 1, "CM22",kXMC4A,kYMC4Am,kZMCm, 0, "ONLY", tpar, 3);
1782 gMC->Gsposp("CC4A", 2, "CM22",-kXMC4A,kYMC4Ap,kZMCp, 0, "ONLY", tpar, 3);
1783
1784
1785// chamber type B
1786 tpar[0] = ((kXMC1MAX-kXMC1MIN)/2.)*kZ14;
1787 tpar[1] = ((kYMC1MAX-kYMC1MIN)/2.)*kZ14;
1788
1789 const Float_t kXMC4B=kXMC1B*kZ14;
1790 const Float_t kYMC4Bp=kYMC1Bp*kZ14;
1791 const Float_t kYMC4Bm=kYMC1Bm*kZ14;
1792 gMC->Gsposp("CC4A", 3, "CM22",kXMC4B,kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1793 gMC->Gsposp("CC4A", 4, "CM22",-kXMC4B,kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1794 gMC->Gsposp("CC4A", 5, "CM22",kXMC4B,-kYMC4Bp,kZMCp, 0, "ONLY", tpar, 3);
1795 gMC->Gsposp("CC4A", 6, "CM22",-kXMC4B,-kYMC4Bm,kZMCm, 0, "ONLY", tpar, 3);
1796
1797
1798// chamber type C (end of type B !!)
1799 tpar[0] =(kXMC1MAX/2)*kZ14;
1800 tpar[1] = (kYMC1MAX/2)*kZ14;
1801
1802 const Float_t kXMC4C=kXMC1C*kZ14;
1803 const Float_t kYMC4Cp=kYMC1Cp*kZ14;
1804 const Float_t kYMC4Cm=kYMC1Cm*kZ14;
1805 gMC->Gsposp("CC4A", 7, "CM22",kXMC4C,kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1806 gMC->Gsposp("CC4A", 8, "CM22",-kXMC4C,kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1807 gMC->Gsposp("CC4A", 9, "CM22",kXMC4C,-kYMC4Cp,kZMCp, 0, "ONLY", tpar, 3);
1808 gMC->Gsposp("CC4A", 10, "CM22",-kXMC4C,-kYMC4Cm,kZMCm, 0, "ONLY", tpar, 3);
1809
1810
1811// chamber type D, E and F (same size)
1812 tpar[0] = (kXMC1MAX/2.)*kZ14;
1813 tpar[1] = kYMC1MIN*kZ14;
1814
1815 const Float_t kXMC4D=kXMC1D*kZ14;
1816 const Float_t kYMC4Dp=kYMC1Dp*kZ14;
1817 const Float_t kYMC4Dm=kYMC1Dm*kZ14;
1818 gMC->Gsposp("CC4A", 11, "CM22",kXMC4D,kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1819 gMC->Gsposp("CC4A", 12, "CM22",-kXMC4D,kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1820 gMC->Gsposp("CC4A", 13, "CM22",kXMC4D,-kYMC4Dm,kZMCm, 0, "ONLY", tpar, 3);
1821 gMC->Gsposp("CC4A", 14, "CM22",-kXMC4D,-kYMC4Dp,kZMCp, 0, "ONLY", tpar, 3);
1822
1823 const Float_t kYMC4Ep=kYMC1Ep*kZ14;
1824 const Float_t kYMC4Em=kYMC1Em*kZ14;
1825 gMC->Gsposp("CC4A", 15, "CM22",kXMC4D,kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1826 gMC->Gsposp("CC4A", 16, "CM22",-kXMC4D,kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1827 gMC->Gsposp("CC4A", 17, "CM22",kXMC4D,-kYMC4Ep,kZMCp, 0, "ONLY", tpar, 3);
1828 gMC->Gsposp("CC4A", 18, "CM22",-kXMC4D,-kYMC4Em,kZMCm, 0, "ONLY", tpar, 3);
1829
1830 const Float_t kYMC4Fp=kYMC1Fp*kZ14;
1831 const Float_t kYMC4Fm=kYMC1Fm*kZ14;
1832 gMC->Gsposp("CC4A", 19, "CM22",kXMC4D,kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1833 gMC->Gsposp("CC4A", 20, "CM22",-kXMC4D,kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1834 gMC->Gsposp("CC4A", 21, "CM22",kXMC4D,-kYMC4Fm,kZMCm, 0, "ONLY", tpar, 3);
1835 gMC->Gsposp("CC4A", 22, "CM22",-kXMC4D,-kYMC4Fp,kZMCp, 0, "ONLY", tpar, 3);
1836
1837
1838// Positioning second plane of station 2 in ALICE
1839
1840 gMC->Gspos("CM22", 1, "ALIC", 0., 0., zpos4, 0, "ONLY");
1841
1842// End of geometry definition for the second plane of station 2
1843
1844// End of trigger geometry definition
1845
1846}
1847
1848
1849
1850//___________________________________________
1851void AliMUONv1::CreateMaterials()
1852{
1853 // *** DEFINITION OF AVAILABLE MUON MATERIALS ***
1854 //
b64652f5 1855 // Ar-CO2 gas (80%+20%)
a9e2aefa 1856 Float_t ag1[3] = { 39.95,12.01,16. };
1857 Float_t zg1[3] = { 18.,6.,8. };
1858 Float_t wg1[3] = { .8,.0667,.13333 };
1859 Float_t dg1 = .001821;
1860 //
1861 // Ar-buthane-freon gas -- trigger chambers
1862 Float_t atr1[4] = { 39.95,12.01,1.01,19. };
1863 Float_t ztr1[4] = { 18.,6.,1.,9. };
1864 Float_t wtr1[4] = { .56,.1262857,.2857143,.028 };
1865 Float_t dtr1 = .002599;
1866 //
1867 // Ar-CO2 gas
1868 Float_t agas[3] = { 39.95,12.01,16. };
1869 Float_t zgas[3] = { 18.,6.,8. };
1870 Float_t wgas[3] = { .74,.086684,.173316 };
1871 Float_t dgas = .0018327;
1872 //
1873 // Ar-Isobutane gas (80%+20%) -- tracking
1874 Float_t ag[3] = { 39.95,12.01,1.01 };
1875 Float_t zg[3] = { 18.,6.,1. };
1876 Float_t wg[3] = { .8,.057,.143 };
1877 Float_t dg = .0019596;
1878 //
1879 // Ar-Isobutane-Forane-SF6 gas (49%+7%+40%+4%) -- trigger
1880 Float_t atrig[5] = { 39.95,12.01,1.01,19.,32.066 };
1881 Float_t ztrig[5] = { 18.,6.,1.,9.,16. };
1882 Float_t wtrig[5] = { .49,1.08,1.5,1.84,0.04 };
1883 Float_t dtrig = .0031463;
1884 //
1885 // bakelite
1886
1887 Float_t abak[3] = {12.01 , 1.01 , 16.};
1888 Float_t zbak[3] = {6. , 1. , 8.};
1889 Float_t wbak[3] = {6. , 6. , 1.};
1890 Float_t dbak = 1.4;
1891
1892 Float_t epsil, stmin, deemax, tmaxfd, stemax;
1893
1894 Int_t iSXFLD = gAlice->Field()->Integ();
1895 Float_t sXMGMX = gAlice->Field()->Max();
1896 //
1897 // --- Define the various materials for GEANT ---
1898 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1899 AliMaterial(10, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
1900 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
1901 AliMixture(19, "Bakelite$", abak, zbak, dbak, -3, wbak);
1902 AliMixture(20, "ArC4H10 GAS$", ag, zg, dg, 3, wg);
1903 AliMixture(21, "TRIG GAS$", atrig, ztrig, dtrig, -5, wtrig);
1904 AliMixture(22, "ArCO2 80%$", ag1, zg1, dg1, 3, wg1);
1905 AliMixture(23, "Ar-freon $", atr1, ztr1, dtr1, 4, wtr1);
1906 AliMixture(24, "ArCO2 GAS$", agas, zgas, dgas, 3, wgas);
1e8fff9c 1907 // materials for slat:
1908 // Sensitive area: gas (already defined)
1909 // PCB: copper
1910 // insulating material and frame: vetronite
1911 // walls: carbon, rohacell, carbon
1912 Float_t aglass[5]={12.01, 28.09, 16., 10.8, 23.};
1913 Float_t zglass[5]={ 6., 14., 8., 5., 11.};
1914 Float_t wglass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
1915 Float_t dglass=1.74;
1916
1917 // rohacell: C9 H13 N1 O2
1918 Float_t arohac[4] = {12.01, 1.01, 14.010, 16.};
1919 Float_t zrohac[4] = { 6., 1., 7., 8.};
1920 Float_t wrohac[4] = { 9., 13., 1., 2.};
1921 Float_t drohac = 0.03;
1922
1923 AliMaterial(31, "COPPER$", 63.54, 29., 8.96, 1.4, 0.);
1924 AliMixture(32, "Vetronite$",aglass, zglass, dglass, 5, wglass);
1925 AliMaterial(33, "Carbon$", 12.01, 6., 2.265, 18.8, 49.9);
1926 AliMixture(34, "Rohacell$", arohac, zrohac, drohac, -4, wrohac);
1927
a9e2aefa 1928
1929 epsil = .001; // Tracking precision,
1930 stemax = -1.; // Maximum displacement for multiple scat
1931 tmaxfd = -20.; // Maximum angle due to field deflection
1932 deemax = -.3; // Maximum fractional energy loss, DLS
1933 stmin = -.8;
1934 //
1935 // Air
1936 AliMedium(1, "AIR_CH_US ", 15, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1937 //
1938 // Aluminum
1939
1940 AliMedium(4, "ALU_CH_US ", 9, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1941 fMaxDestepAlu, epsil, stmin);
1942 AliMedium(5, "ALU_CH_US ", 10, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1943 fMaxDestepAlu, epsil, stmin);
1944 //
1945 // Ar-isoC4H10 gas
1946
1947 AliMedium(6, "AR_CH_US ", 20, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1948 fMaxDestepGas, epsil, stmin);
1949//
1950 // Ar-Isobuthane-Forane-SF6 gas
1951
1952 AliMedium(7, "GAS_CH_TRIGGER ", 21, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
1953
1954 AliMedium(8, "BAKE_CH_TRIGGER ", 19, 0, iSXFLD, sXMGMX, tmaxfd, fMaxStepAlu,
1955 fMaxDestepAlu, epsil, stmin);
1956
1957 AliMedium(9, "ARG_CO2 ", 22, 1, iSXFLD, sXMGMX, tmaxfd, fMaxStepGas,
1958 fMaxDestepAlu, epsil, stmin);
1e8fff9c 1959 // tracking media for slats: check the parameters!!
1960 AliMedium(11, "PCB_COPPER ", 31, 0, iSXFLD, sXMGMX, tmaxfd,
1961 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1962 AliMedium(12, "VETRONITE ", 32, 0, iSXFLD, sXMGMX, tmaxfd,
1963 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1964 AliMedium(13, "CARBON ", 33, 0, iSXFLD, sXMGMX, tmaxfd,
1965 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
1966 AliMedium(14, "Rohacell ", 34, 0, iSXFLD, sXMGMX, tmaxfd,
1967 fMaxStepAlu, fMaxDestepAlu, epsil, stmin);
a9e2aefa 1968}
1969
1970//___________________________________________
1971
1972void AliMUONv1::Init()
1973{
1974 //
1975 // Initialize Tracking Chambers
1976 //
1977
9e1a0ddb 1978 if(fDebug) printf("\n%s: Start Init for version 1 - CPC chamber type\n\n",ClassName());
e17592e9 1979 Int_t i;
f665c1ea 1980 for (i=0; i<AliMUONConstants::NCh(); i++) {
a9e2aefa 1981 ( (AliMUONChamber*) (*fChambers)[i])->Init();
1982 }
1983
1984 //
1985 // Set the chamber (sensitive region) GEANT identifier
1986 AliMC* gMC = AliMC::GetMC();
1987 ((AliMUONChamber*)(*fChambers)[0])->SetGid(gMC->VolId("C01G"));
1988 ((AliMUONChamber*)(*fChambers)[1])->SetGid(gMC->VolId("C02G"));
b17c0c87 1989
a9e2aefa 1990 ((AliMUONChamber*)(*fChambers)[2])->SetGid(gMC->VolId("C03G"));
1991 ((AliMUONChamber*)(*fChambers)[3])->SetGid(gMC->VolId("C04G"));
b17c0c87 1992
1e8fff9c 1993 ((AliMUONChamber*)(*fChambers)[4])->SetGid(gMC->VolId("S05G"));
1994 ((AliMUONChamber*)(*fChambers)[5])->SetGid(gMC->VolId("S06G"));
b17c0c87 1995
1e8fff9c 1996 ((AliMUONChamber*)(*fChambers)[6])->SetGid(gMC->VolId("S07G"));
1997 ((AliMUONChamber*)(*fChambers)[7])->SetGid(gMC->VolId("S08G"));
b17c0c87 1998
1e8fff9c 1999 ((AliMUONChamber*)(*fChambers)[8])->SetGid(gMC->VolId("S09G"));
2000 ((AliMUONChamber*)(*fChambers)[9])->SetGid(gMC->VolId("S10G"));
b17c0c87 2001
a9e2aefa 2002 ((AliMUONChamber*)(*fChambers)[10])->SetGid(gMC->VolId("CG1A"));
2003 ((AliMUONChamber*)(*fChambers)[11])->SetGid(gMC->VolId("CG2A"));
2004 ((AliMUONChamber*)(*fChambers)[12])->SetGid(gMC->VolId("CG3A"));
2005 ((AliMUONChamber*)(*fChambers)[13])->SetGid(gMC->VolId("CG4A"));
2006
9e1a0ddb 2007 if(fDebug) printf("\n%s: Finished Init for version 1 - CPC chamber type\n",ClassName());
a9e2aefa 2008
2009 //cp
9e1a0ddb 2010 if(fDebug) printf("\n%s: Start Init for Trigger Circuits\n",ClassName());
f665c1ea 2011 for (i=0; i<AliMUONConstants::NTriggerCircuit(); i++) {
a9e2aefa 2012 ( (AliMUONTriggerCircuit*) (*fTriggerCircuits)[i])->Init(i);
2013 }
9e1a0ddb 2014 if(fDebug) printf("%s: Finished Init for Trigger Circuits\n",ClassName());
a9e2aefa 2015 //cp
2016
2017}
2018
2019//___________________________________________
2020void AliMUONv1::StepManager()
2021{
2022 Int_t copy, id;
2023 static Int_t idvol;
2024 static Int_t vol[2];
2025 Int_t ipart;
2026 TLorentzVector pos;
2027 TLorentzVector mom;
2028 Float_t theta,phi;
2029 Float_t destep, step;
681d067b 2030
1e8fff9c 2031 static Float_t eloss, eloss2, xhit, yhit, zhit, tof, tlength;
2eb55fab 2032 const Float_t kBig = 1.e10;
a9e2aefa 2033 static Float_t hits[15];
2034
2035 TClonesArray &lhits = *fHits;
2036
2037 //
a9e2aefa 2038 //
2039 // Only charged tracks
2040 if( !(gMC->TrackCharge()) ) return;
2041 //
2042 // Only gas gap inside chamber
2043 // Tag chambers and record hits when track enters
2044 idvol=-1;
2045 id=gMC->CurrentVolID(copy);
2046
2eb55fab 2047 for (Int_t i = 1; i <= AliMUONConstants::NCh(); i++) {
a9e2aefa 2048 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
2eb55fab 2049 vol[0] = i;
2050 idvol = i-1;
a9e2aefa 2051 }
2052 }
2053 if (idvol == -1) return;
2054 //
2055 // Get current particle id (ipart), track position (pos) and momentum (mom)
2056 gMC->TrackPosition(pos);
2057 gMC->TrackMomentum(mom);
2058
2059 ipart = gMC->TrackPid();
a9e2aefa 2060
2061 //
2062 // momentum loss and steplength in last step
2063 destep = gMC->Edep();
2064 step = gMC->TrackStep();
2065
2066 //
2067 // record hits when track enters ...
2068 if( gMC->IsTrackEntering()) {
2069 gMC->SetMaxStep(fMaxStepGas);
2070 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
2071 Double_t rt = TMath::Sqrt(tc);
2072 Double_t pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
2eb55fab 2073 Double_t tx = mom[0]/pmom;
2074 Double_t ty = mom[1]/pmom;
2075 Double_t tz = mom[2]/pmom;
2076 Double_t s = ((AliMUONChamber*)(*fChambers)[idvol])
a9e2aefa 2077 ->ResponseModel()
2078 ->Pitch()/tz;
2079 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
2080 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
2081 hits[0] = Float_t(ipart); // Geant3 particle type
2eb55fab 2082 hits[1] = pos[0]+s*tx; // X-position for hit
2083 hits[2] = pos[1]+s*ty; // Y-position for hit
2084 hits[3] = pos[2]+s*tz; // Z-position for hit
a9e2aefa 2085 hits[4] = theta; // theta angle of incidence
2086 hits[5] = phi; // phi angle of incidence
2eb55fab 2087 hits[8] = (Float_t) fNPadHits; // first padhit
a9e2aefa 2088 hits[9] = -1; // last pad hit
2eb55fab 2089 hits[10] = mom[3]; // hit momentum P
2090 hits[11] = mom[0]; // Px
2091 hits[12] = mom[1]; // Py
2092 hits[13] = mom[2]; // Pz
a9e2aefa 2093 tof=gMC->TrackTime();
2eb55fab 2094 hits[14] = tof; // Time of flight
2095 tlength = 0;
2096 eloss = 0;
2097 eloss2 = 0;
2098 xhit = pos[0];
2099 yhit = pos[1];
2100 zhit = pos[2];
681d067b 2101 Chamber(idvol).ChargeCorrelationInit();
a9e2aefa 2102 // Only if not trigger chamber
1e8fff9c 2103
2104
2105
2106
2eb55fab 2107 if(idvol < AliMUONConstants::NTrackingCh()) {
a9e2aefa 2108 //
2109 // Initialize hit position (cursor) in the segmentation model
2110 ((AliMUONChamber*) (*fChambers)[idvol])
2111 ->SigGenInit(pos[0], pos[1], pos[2]);
2112 } else {
2113 //geant3->Gpcxyz();
2114 //printf("In the Trigger Chamber #%d\n",idvol-9);
2115 }
2116 }
2117 eloss2+=destep;
2118
2119 //
2120 // Calculate the charge induced on a pad (disintegration) in case
2121 //
2122 // Mip left chamber ...
2123 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
2124 gMC->SetMaxStep(kBig);
2125 eloss += destep;
2126 tlength += step;
2127
802a864d 2128 Float_t x0,y0,z0;
2129 Float_t localPos[3];
2130 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
802a864d 2131 gMC->Gmtod(globalPos,localPos,1);
2132
2eb55fab 2133 if(idvol < AliMUONConstants::NTrackingCh()) {
a9e2aefa 2134// tracking chambers
2135 x0 = 0.5*(xhit+pos[0]);
2136 y0 = 0.5*(yhit+pos[1]);
1e8fff9c 2137 z0 = 0.5*(zhit+pos[2]);
a9e2aefa 2138 } else {
2139// trigger chambers
2eb55fab 2140 x0 = xhit;
2141 y0 = yhit;
2142 z0 = 0.;
a9e2aefa 2143 }
2144
1e8fff9c 2145
802a864d 2146 if (eloss >0) MakePadHits(x0,y0,z0,eloss,tof,idvol);
a9e2aefa 2147
2148
2eb55fab 2149 hits[6] = tlength; // track length
2150 hits[7] = eloss2; // de/dx energy loss
2151
a9e2aefa 2152 if (fNPadHits > (Int_t)hits[8]) {
2eb55fab 2153 hits[8] = hits[8]+1;
2154 hits[9] = (Float_t) fNPadHits;
a9e2aefa 2155 }
2eb55fab 2156//
2157// new hit
2158
a9e2aefa 2159 new(lhits[fNhits++])
2eb55fab 2160 AliMUONHit(fIshunt, gAlice->CurrentTrack(), vol,hits);
a9e2aefa 2161 eloss = 0;
2162 //
2163 // Check additional signal generation conditions
2164 // defined by the segmentation
a75f073c 2165 // model (boundary crossing conditions)
2166 // only for tracking chambers
a9e2aefa 2167 } else if
a75f073c 2168 ((idvol < AliMUONConstants::NTrackingCh()) &&
2169 ((AliMUONChamber*) (*fChambers)[idvol])->SigGenCond(pos[0], pos[1], pos[2]))
a9e2aefa 2170 {
2171 ((AliMUONChamber*) (*fChambers)[idvol])
2172 ->SigGenInit(pos[0], pos[1], pos[2]);
802a864d 2173
2174 Float_t localPos[3];
2175 Float_t globalPos[3] = {pos[0], pos[1], pos[2]};
2176 gMC->Gmtod(globalPos,localPos,1);
2177
e0f71fb7 2178 eloss += destep;
802a864d 2179
a75f073c 2180 if (eloss > 0 && idvol < AliMUONConstants::NTrackingCh())
1e8fff9c 2181 MakePadHits(0.5*(xhit+pos[0]),0.5*(yhit+pos[1]),pos[2],eloss,tof,idvol);
a9e2aefa 2182 xhit = pos[0];
2183 yhit = pos[1];
e0f71fb7 2184 zhit = pos[2];
2185 eloss = 0;
a9e2aefa 2186 tlength += step ;
2187 //
2188 // nothing special happened, add up energy loss
2189 } else {
2190 eloss += destep;
2191 tlength += step ;
2192 }
2193}
2194
2195