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30178c30 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 *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
d1cd2474 16// $Id$
d1525c79 17
18// -----------------------------------
d1cd2474 19// Class AliMUONTriggerGeometryBuilder
20// -----------------------------------
d1525c79 21// MUON Trigger stations geometry
22// construction class.
23// Author: Philippe Crochet (LPCCFd)
d1cd2474 24
25#include <TVirtualMC.h>
26#include <TGeoMatrix.h>
27
e118b27e 28#include "AliLog.h"
c0404a6c 29#include "AliRun.h"
e118b27e 30
d1cd2474 31#include "AliMUONTriggerGeometryBuilder.h"
32#include "AliMUON.h"
b7ef3c96 33#include "AliMUONConstants.h"
e118b27e 34#include "AliMUONGeometryModule.h"
a432117a 35#include "AliMUONGeometryEnvelopeStore.h"
d1cd2474 36
5398f946 37/// \cond CLASSIMP
d1cd2474 38ClassImp(AliMUONTriggerGeometryBuilder)
5398f946 39/// \endcond
d1cd2474 40
41//______________________________________________________________________________
42AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(AliMUON* muon)
b7ef3c96 43 : AliMUONVGeometryBuilder(10, 11, 12, 13),
d1cd2474 44 fMUON(muon)
45{
46// Standard constructor
47
48}
49
50//______________________________________________________________________________
51AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder()
52 : AliMUONVGeometryBuilder(),
53 fMUON(0)
54{
55// Default constructor
56}
57
d1cd2474 58//______________________________________________________________________________
59AliMUONTriggerGeometryBuilder::~AliMUONTriggerGeometryBuilder() {
60//
61}
62
d1cd2474 63//
64// public methods
65//
66
67//______________________________________________________________________________
68void AliMUONTriggerGeometryBuilder::CreateGeometry()
69{
70// From AliMUONv1::CreateGeometry()
71
72 /*
73 zpos1 and zpos2 are the middle of the first and second
74 planes of station 1 (+1m for second station):
75 zpos1=(zpos1m+zpos1p)/2=(15999+16071)/2=16035 mm, thick/2=40 mm
76 zpos2=(zpos2m+zpos2p)/2=(16169+16241)/2=16205 mm, thick/2=40 mm
77 zposxm and zposxp= middles of gaz gaps within a detection plane
78 rem: the total thickness accounts for 1 mm of al on both
79 side of the RPCs (see zpos1 and zpos2)
80 */
81
82 Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
83 Int_t idAir= idtmed[1100]; // medium 1
84 Int_t idAlu1=idtmed[1103]; // medium 4
a432117a 85 Int_t detElemId=0; // Detection Element Number
d1cd2474 86 Float_t tpar[3];
87 Double_t dpar[3];
88
89// vertical gap between right and left chambers (kDXZERO*2=4cm)
90 const Float_t kDXZERO=2.;
91// main distances for chamber definition in first plane/first station
92 const Float_t kXMIN=34.;
93 const Float_t kXMED=51.;
b6a52ffa 94 const Float_t kXMAX=255.;
95// 090704 kXMAX changed from 272 to 255.
d1cd2474 96// (see fig.2-4 & 2-5 of Local Trigger Board PRR)
b6a52ffa 97// segmentation updated accordingly
d1cd2474 98 const Float_t kYMIN=34.;
99 const Float_t kYMAX=51.;
100// inner/outer radius of flange between beam shield. and chambers (1/station)
936e7ca3 101// const Float_t kRMIN[2]={50.,50.};
102// const Float_t kRMAX[2]={64.,68.};
d1cd2474 103// z position of the middle of the gas gap in mother vol
104 const Float_t kZm=-3.6;
65bcb249 105 const Float_t kZp=+3.6;
106
b7ef3c96 107 Float_t zpos1= AliMUONConstants::DefaultChamberZ(10);
108 Double_t dstation = ( ( - AliMUONConstants::DefaultChamberZ(11)) -
109 ( - AliMUONConstants::DefaultChamberZ(10)) ) /2.1;
eb571c25 110 Float_t par[3];
111 par[2] = dstation;
112
d1cd2474 113// ratio of zpos1m/zpos1p and inverse for first plane
114 Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
115 Float_t zpm=1./zmp;
116
117 Int_t icount=0; // chamber counter (0 1 2 3)
118
119 for (Int_t istation=0; istation<2; istation++) { // loop on stations
120 for (Int_t iplane=0; iplane<2; iplane++) { // loop on detection planes
121
122 Int_t iVolNum=1; // counter Volume Number
a04ce845 123 icount = Int_t(iplane<<0)+Int_t(istation<<1);
d1cd2474 124
b7ef3c96 125 par[0] = AliMUONConstants::Rmin(5+istation);
126 par[1] = AliMUONConstants::Rmax(5+istation);
eb571c25 127 Char_t volName[6];
e1d22736 128 sprintf(volName,"%s%d", "SC",11+icount);
eb571c25 129 gMC->Gsvolu(volName,"TUBE", idAir, par, 3);
eb1c3e3a 130 //SetVolume(10+icount, volName);
43adb63d 131// Float_t zpos = AliMUONConstants::DefaultChamberZ(10+icount);
132
880610c7 133/* removed 03/18/05
d1cd2474 134// Flange between beam shielding and RPC
135 tpar[0]= kRMIN[istation];
136 tpar[1]= kRMAX[istation];
137 tpar[2]= 4.0;
138 char volFlange[5];
139 sprintf(volFlange,"SF%dA",icount+1);
140 gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3); // Al
141 // changed by ivana
142 //gMC->Gspos(volFlange,1,"ALIC",0.,0.,zpos,0,"MANY");
a432117a 143 iChamber->GetGeometry()->GetEnvelopeStore()
144 ->AddEnvelope(volFlange, 0, false, "MANY");
880610c7 145*/
d1cd2474 146
147// scaling factor
43adb63d 148// Float_t zRatio = zpos / zpos1;
149 Float_t zRatio = AliMUONConstants::DefaultRatioTriggerChamber(icount);
150
151
152
153
d1cd2474 154// envelopes (same size except line 5, all virtual)
155 char volEnv[18][5];
156 tpar[1] = kYMIN * zRatio;
157 tpar[2] = 0.4;
158 Int_t i=0; // counter
159 for (Int_t icolumn=0; icolumn<2; icolumn++) {
160 for (Int_t iline=1; iline<10; iline++){
161 tpar[0] = (kXMAX/2.) * zRatio;
162 if (iline==5) tpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
163 if (icolumn==0)
d1cd2474 164 sprintf(volEnv[i],"S%dR%d",icount,iline);
528abf6f 165 else
166 sprintf(volEnv[i],"S%dL%d",icount,iline);
eb1c3e3a 167 // gMC->Gsvolu(volEnv[i],"BOX",idAir,tpar,0);
d1cd2474 168 i++;
169 }
170 }
171
172// chamber prototype
173 tpar[0]= 0.;
174 tpar[1]= 0.;
936e7ca3 175 tpar[2]= 0.; char volAlu[5]; // Alu
d1cd2474 176 char volBak[5]; // Bakelite
177 char volGaz[5]; // Gas streamer
178 sprintf(volAlu,"SC%dA",icount+1);
179 sprintf(volBak,"SB%dA",icount+1);
eb571c25 180 sprintf(volGaz,"S%dG",icount+11);
d1cd2474 181 gMC->Gsvolu(volAlu,"BOX",idAlu1,tpar,0); // Al
182 gMC->Gsvolu(volBak,"BOX",idtmed[1107],tpar,0); // Bakelite
183 gMC->Gsvolu(volGaz,"BOX",idtmed[1106],tpar,0); // Gas streamer
184 tpar[0] = -1.;
185 tpar[1] = -1.;
186 tpar[2] = 0.1;
187 gMC->Gsposp(volGaz,1,volBak,0.,0.,0.,0,"ONLY",tpar,3);
188 tpar[2] = 0.3;
189 gMC->Gsposp(volBak,1,volAlu,0.,0.,0.,0,"ONLY",tpar,3);
190
191// chamber type A
192 Float_t xEnv = (kDXZERO+kXMED+(kXMAX-kXMED)/2.)*zRatio;
193 Float_t yEnvM = 0.; // y low position of envelope in chamber
194 Float_t yEnvP = 0.; // y up position of envelope in chamber
195 Float_t yEnvPsave = 0.; // tmp data
196 Float_t yEnvMsave = 0.; // tmp data
197 Float_t xpos = 0.; // x position of RPC in envelope
198 Float_t ypos = 0.; // y position of RPC in envelope
199 dpar[2] = 0.4;
200 dpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
201 dpar[1] = kYMIN * zRatio;
202
65bcb249 203 detElemId = (10+icount+1)*100;
8bd68448 204 GetEnvelopes(10+icount)->AddEnvelope(volEnv[4], detElemId, true, TGeoTranslation(xEnv,yEnvP,kZp));
65bcb249 205 detElemId = (10+icount+1)*100+9;
8bd68448 206 GetEnvelopes(10+icount)->AddEnvelope(volEnv[13], detElemId, true, TGeoTranslation(-xEnv,yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474 207
a432117a 208 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[4],iVolNum++,3, dpar);
209 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[13],iVolNum++,3, dpar);
d1cd2474 210
211// chamber type B (plus envelope chambers B & C)
212 xEnv = (kDXZERO+kXMAX/2.)*zRatio;
213 yEnvPsave = yEnvP;
214 yEnvMsave = yEnvM;
215 yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
216 yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
217 dpar[0] = ((kXMAX-kXMIN)/2.) * zRatio;
218 dpar[1] = ((kYMAX-kYMIN)/2.) * zRatio;
219 xpos = kXMIN/2. * zRatio;
220 ypos = (kYMIN - kYMIN/4.) * zRatio;
221
65bcb249 222 detElemId = (10+icount+1)*100+17;
223 GetEnvelopes(10+icount)->AddEnvelope(volEnv[3], detElemId, true, TGeoTranslation( xEnv,-yEnvM,kZm));
224 detElemId = (10+icount+1)*100+1;
8bd68448 225 GetEnvelopes(10+icount)->AddEnvelope(volEnv[5], detElemId, true, TGeoTranslation( xEnv, yEnvM,kZm));
65bcb249 226 detElemId = (10+icount+1)*100+10;
8bd68448 227 GetEnvelopes(10+icount)->AddEnvelope(volEnv[12], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249 228 detElemId = (10+icount+1)*100+8;
8bd68448 229 GetEnvelopes(10+icount)->AddEnvelope(volEnv[14], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474 230
a432117a 231 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
232 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
298c0899 233 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
234 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
d1cd2474 235
236// chamber type C (note: same Z than type B)
237 dpar[0] = (kXMAX/2)*zRatio;
238 dpar[1] = (kYMAX/2)*zRatio;
239 xpos = 0.;
240 ypos = ((kYMAX - kYMIN)/2.) * zRatio;
241
a432117a 242 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
243 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
298c0899 244 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
245 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
880610c7 246
d1cd2474 247// chamber type D, E and F (same size)
248// D
249 yEnvPsave = yEnvP;
250 yEnvMsave = yEnvM;
251 yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
252 yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
253 dpar[0] = (kXMAX/2.)*zRatio;
254 dpar[1] = kYMIN*zRatio;
255
65bcb249 256 detElemId = (10+icount+1)*100+16;
8bd68448 257 GetEnvelopes(10+icount)->AddEnvelope(volEnv[2], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
65bcb249 258 detElemId = (10+icount+1)*100+2;
8bd68448 259 GetEnvelopes(10+icount)->AddEnvelope(volEnv[6], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
65bcb249 260 detElemId = (10+icount+1)*100+11;
8bd68448 261 GetEnvelopes(10+icount)->AddEnvelope(volEnv[11], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249 262 detElemId = (10+icount+1)*100+7;
8bd68448 263 GetEnvelopes(10+icount)->AddEnvelope(volEnv[15], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474 264
a432117a 265 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[2],iVolNum++,3, dpar);
266 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[6],iVolNum++,3, dpar);
267 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[11],iVolNum++,3, dpar);
268 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[15],iVolNum++,3, dpar);
d1cd2474 269
270// E
271 yEnvPsave = yEnvP;
272 yEnvMsave = yEnvM;
273 yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
274 yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
275
65bcb249 276 detElemId = (10+icount+1)*100+15;
8bd68448 277 GetEnvelopes(10+icount)->AddEnvelope(volEnv[1], detElemId, true, TGeoTranslation(xEnv,-yEnvM,kZm));
65bcb249 278 detElemId = (10+icount+1)*100+3;
8bd68448 279 GetEnvelopes(10+icount)->AddEnvelope(volEnv[7], detElemId, true, TGeoTranslation(xEnv, yEnvM,kZm));
65bcb249 280 detElemId = (10+icount+1)*100+12;
8bd68448 281 GetEnvelopes(10+icount)->AddEnvelope(volEnv[10], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249 282 detElemId = (10+icount+1)*100+6;
8bd68448 283 GetEnvelopes(10+icount)->AddEnvelope(volEnv[16], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474 284
a432117a 285 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[1],iVolNum++,3,dpar);
286 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[7],iVolNum++,3,dpar);
287 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[10],iVolNum++,3,dpar);
288 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[16],iVolNum++,3,dpar);
d1cd2474 289
290
291// F
292 yEnvPsave = yEnvP;
293 yEnvMsave = yEnvM;
294 yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
295 yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
296
65bcb249 297 detElemId = (10+icount+1)*100+14;
8bd68448 298 GetEnvelopes(10+icount)->AddEnvelope(volEnv[0], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
65bcb249 299 detElemId = (10+icount+1)*100+4;
8bd68448 300 GetEnvelopes(10+icount)->AddEnvelope(volEnv[8], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
65bcb249 301 detElemId = (10+icount+1)*100+13;
8bd68448 302 GetEnvelopes(10+icount)->AddEnvelope(volEnv[9], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249 303 detElemId = (10+icount+1)*100+5;
8bd68448 304 GetEnvelopes(10+icount)->AddEnvelope(volEnv[17], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
528abf6f 305
a432117a 306 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[0],iVolNum++,3,dpar);
307 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[8],iVolNum++,3,dpar);
308 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[9],iVolNum++,3,dpar);
309 GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[17],iVolNum++,3,dpar);
d1cd2474 310
311 } // end loop on detection planes
312 } // end loop on stations
313}
314
315//______________________________________________________________________________
316void AliMUONTriggerGeometryBuilder::SetTransformations()
317{
318// Defines the transformations for the trigger chambers.
319// ---
d1cd2474 320
c0404a6c 321 if (gAlice->GetModule("SHIL")) {
322 SetMotherVolume(10, "YOUT2");
323 SetMotherVolume(11, "YOUT2");
324 SetMotherVolume(12, "YOUT2");
325 SetMotherVolume(13, "YOUT2");
326 }
327
eb1c3e3a 328 SetVolume(10, "SC11");
329 SetVolume(11, "SC12");
330 SetVolume(12, "SC13");
331 SetVolume(13, "SC14");
332
b7ef3c96 333 Double_t zpos1= AliMUONConstants::DefaultChamberZ(10);
334 SetTranslation(10, TGeoTranslation(0., 0., zpos1));
d1cd2474 335
b7ef3c96 336 zpos1= AliMUONConstants::DefaultChamberZ(11);
337 SetTranslation(11, TGeoTranslation(0., 0., zpos1));
338
339 zpos1= AliMUONConstants::DefaultChamberZ(12);
340 SetTranslation(12, TGeoTranslation(0., 0., zpos1));
341
342 zpos1= AliMUONConstants::DefaultChamberZ(13);
343 SetTranslation(13, TGeoTranslation(0., 0., zpos1));
d1cd2474 344}
345
346//______________________________________________________________________________
347void AliMUONTriggerGeometryBuilder::SetSensitiveVolumes()
348{
349// Defines the sensitive volumes for trigger station chambers.
350// ---
351
eb571c25 352 GetGeometry(10)->SetSensitiveVolume("S11G");
353 GetGeometry(11)->SetSensitiveVolume("S12G");
354 GetGeometry(12)->SetSensitiveVolume("S13G");
355 GetGeometry(13)->SetSensitiveVolume("S14G");
d1cd2474 356}
357