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Removing AliMCProcess and AliMC
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43d014f0 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
16/*
17$Log$
dbbe5bc1 18Revision 1.14 2002/10/21 09:09:33 alibrary
19Removing unused variables
20
ba47c054 21Revision 1.13 2002/10/14 14:57:34 hristov
22Merging the VirtualMC branch to the main development branch (HEAD)
23
b9d0a01d 24Revision 1.11.6.1 2002/07/24 10:08:27 alibrary
25Updating VirtualMC
26
27Revision 1.12 2002/07/15 07:56:41 morsch
28Steel rear and Al ring.
29
8f657ed5 30Revision 1.11 2001/11/29 14:16:51 morsch
31- truncated inner W-cone
32- new support structure
33
513b07d0 34Revision 1.10 2001/10/25 08:50:57 morsch
35New beamshield geometry with increased tolerances and insulation thickness.
36
77976fd8 37Revision 1.9 2001/05/16 14:57:22 alibrary
38New files for folders and Stack
39
9e1a0ddb 40Revision 1.8 2001/01/12 13:16:09 morsch
41Store absorber composition information in fMLayers and fZLayers
42Rear 25 cm Fe + 35 cm Cu
43
381ec9af 44Revision 1.7 2000/10/02 21:28:15 fca
45Removal of useless dependecies via forward declarations
46
94de3818 47Revision 1.6 2000/06/15 09:40:31 morsch
48Obsolete typedef keyword removed
49
56f14ac2 50Revision 1.5 2000/06/12 19:39:01 morsch
51New structure of beam pipe and heating jacket.
52
b2ef5f06 53Revision 1.4 2000/04/03 08:13:40 fca
54Introduce extra scope for non ANSI compliant C++ compilers
55
74c0d076 56Revision 1.3 2000/01/18 17:49:56 morsch
57Serious overlap of ABSM with shield corrected
58Small error in ARPB parameters corrected
59
85d164ab 60Revision 1.2 2000/01/13 11:23:59 morsch
61Last layer of Pb outer angle corrected
62
54fba644 63Revision 1.1 2000/01/12 15:39:30 morsch
b2ef5f06 64Standard version of ABSO
54fba644 65
43d014f0 66*/
67
68///////////////////////////////////////////////////////////////////////////////
69// //
70// Muon ABSOrber //
71// This class contains the description of the muon absorber geometry //
72// //
73//Begin_Html
74/*
75<img src="picts/AliABSOClass.gif">
76</pre>
77<br clear=left>
78<font size=+2 color=red>
79<p>The responsible person for this module is
80<a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
81</font>
82<pre>
83*/
84//End_Html
85// //
86// //
87///////////////////////////////////////////////////////////////////////////////
88
89#include "AliABSOv0.h"
90#include "AliRun.h"
94de3818 91#include "AliMC.h"
43d014f0 92#include "AliConst.h"
b2ef5f06 93
43d014f0 94ClassImp(AliABSOv0)
95
96//_____________________________________________________________________________
97AliABSOv0::AliABSOv0()
98{
99 //
100 // Default constructor
101 //
102}
103
104//_____________________________________________________________________________
105AliABSOv0::AliABSOv0(const char *name, const char *title)
106 : AliABSO(name,title)
107{
108 //
109 // Standard constructor
110 //
111 SetMarkerColor(7);
112 SetMarkerStyle(2);
113 SetMarkerSize(0.4);
114}
115
116//_____________________________________________________________________________
117void AliABSOv0::CreateGeometry()
118{
b2ef5f06 119 //
120 // Creation of the geometry of the muon absorber
121 //
122 //Begin_Html
123 /*
124 <img src="picts/AliABSOv0Tree.gif">
125 */
126 //End_Html
127 //Begin_Html
128 /*
129 <img src="picts/AliABSOv0.gif">
130 */
131 //End_Html
132
133 //
134 //
56f14ac2 135
136 enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612,
77976fd8 137 kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616,
138 kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619};
b2ef5f06 139
140 Int_t *idtmed = fIdtmed->GetArray()-1599;
43d014f0 141
b2ef5f06 142 Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3];
143 Float_t dz;
513b07d0 144 Int_t idrotm[1699];
b2ef5f06 145#include "ABSOSHILConst.h"
146#include "ABSOConst.h"
381ec9af 147//
148// Structure of Tracking Region
149//
150 Float_t dzFe = 25.;
151
152// 3 < theta < 9
153 fNLayers[0] = 5;
dbbe5bc1 154 fMLayers[0][0] = kAir; fZLayers[0][0] = kZAbsStart;
155 fMLayers[0][1] = kC; fZLayers[0][1] = kZAbsCc;
156 fMLayers[0][2] = kConcrete; fZLayers[0][2] = kZRear-kDRear-dzFe;
157 fMLayers[0][3] = kSteel; fZLayers[0][3] = kZRear-kDRear;
158 fMLayers[0][4] = kSteel; fZLayers[0][4] = kZRear;
381ec9af 159// 2 < theta < 3
dbbe5bc1 160 fNLayers[1] = 6;
161
162 fMLayers[1][0] = kAir ; fZLayers[1][0] = fZLayers[0][0]-10.;
163 fMLayers[1][1] = kAl ; fZLayers[1][1] = fZLayers[0][0];
164 fMLayers[1][2] = fMLayers[0][1]; fZLayers[1][2] = fZLayers[0][1];
165 fMLayers[1][3] = fMLayers[0][2]; fZLayers[1][3] = fZLayers[0][2];
166 fMLayers[1][4] = fMLayers[0][3]; fZLayers[1][4] = fZLayers[0][3];
167 fMLayers[1][5] = kNiCuW; fZLayers[1][5] = fZLayers[0][4];
381ec9af 168//
169
b2ef5f06 170 Float_t dTube=0.1; // tube thickness
171 Float_t dInsu=0.5; // insulation thickness
172 Float_t dEnve=0.1; // protective envelope thickness
ba47c054 173 // Float_t dFree=0.5; // clearance thickness
b2ef5f06 174
175
176// Mother volume and outer shielding: Pb
43d014f0 177 par[0] = 0.;
178 par[1] = 360.;
179 par[2] = 7.;
b2ef5f06 180
dbbe5bc1 181 par[3] = -(kZRear-kZAbsStart)/2.;
182 par[4] = kRAbs;
183 par[5] = kZAbsStart * TMath::Tan(kTheta1);
43d014f0 184
dbbe5bc1 185 par[6] = par[3]+(kZNose-kZAbsStart);
186 par[7] = kRAbs;
187 par[8] = kZNose * TMath::Tan(kTheta1);
43d014f0 188
dbbe5bc1 189 par[9] = par[3]+(kZConeTPC-kZAbsStart);
190 par[10] = kRAbs;
191 par[11] = par[8] + (par[9] - par[6]) * TMath::Tan(kTheta2);
43d014f0 192
dbbe5bc1 193 par[12] = par[3]+(kZOpen-kZAbsStart);
194 par[13] = kRAbs;
195 par[14] = par[11] + (par[12] - par[9]) * TMath::Tan(kAccMax);
43d014f0 196
dbbe5bc1 197 par[15] = par[3]+(kZRear-kDRear-kZAbsStart);
198 par[16] = kRAbs + (par[15] - par[12]) * TMath::Tan(kThetaOpen1) ;
199 par[17] = par[14] + (par[15] - par[12]) * TMath::Tan(kAccMax);
43d014f0 200
dbbe5bc1 201 par[18] = par[3]+(kZRear-kDRear-kZAbsStart);
202 par[19] = (kZRear-kDRear) * TMath::Tan(kAccMin);
203 par[20] = par[14] + (par[18] - par[12]) * TMath::Tan(kAccMax);
43d014f0 204
205 par[21] = -par[3];
dbbe5bc1 206 par[22] = kZRear* TMath::Tan(kAccMin);
207 par[23] = par[20] + (par[21] - par[18]) * TMath::Tan(kAccMax);
b2ef5f06 208 gMC->Gsvolu("ABSS", "PCON", idtmed[kPb], par, 24);
74c0d076 209 { // Begin local scope for i
b2ef5f06 210 for (Int_t i=4; i<18; i+=3) par[i] = 0;
74c0d076 211 } // End local scope for i
b2ef5f06 212 gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24);
43d014f0 213 gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY");
214
215//
216// Steel envelope
217//
dbbe5bc1 218 par[4] = par[5] -kDSteel;
219 par[7] = par[8] -kDSteel;
220 par[10]= par[11]-kDSteel;
221 par[13]= par[14]-kDSteel;
222 par[16]= par[17]-kDSteel;
223 par[19]= par[20]-kDSteel;
224 par[22]= par[23]-kDSteel;
b2ef5f06 225 gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24);
43d014f0 226 gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY");
227//
228// Polyethylene shield
229//
dbbe5bc1 230 cpar[0] = (kZRear - kZConeTPC) / 2.;
231 cpar[1] = kZConeTPC * TMath::Tan(kAccMax);
232 cpar[2] = cpar[1] + kDPoly;
233 cpar[3] = kZRear * TMath::Tan(kAccMax);
234 cpar[4] = cpar[3] + kDPoly;
b2ef5f06 235 gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5);
dbbe5bc1 236 dz = (kZRear-kZAbsStart)/2.-cpar[0];
43d014f0 237 gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY");
238
239//
240// Tungsten nose to protect TPC
241//
dbbe5bc1 242 cpar[0] = (kZNose - kZAbsStart) / 2.;
243 cpar[1] = kZAbsStart * TMath::Tan(kAccMax);
244 cpar[2] = kZAbsStart * TMath::Tan(kTheta1)-kDSteel;
245 cpar[3] = kZNose * TMath::Tan(kAccMax);
246 cpar[4] = kZNose * TMath::Tan(kTheta1)-kDSteel;
b2ef5f06 247 gMC->Gsvolu("ANOS", "CONE", idtmed[kW], cpar, 5);
8f657ed5 248 //
dbbe5bc1 249 dz = -(kZRear-kZAbsStart)/2.+cpar[0];
43d014f0 250 gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY");
8f657ed5 251 //
252 // Tungsten inner shield
253 //
dbbe5bc1 254 Float_t zW = kZTwoDeg+.1;
255 Float_t dZ = zW+(kZRear-kDRear-zW)/2.;
43d014f0 256 //
b2ef5f06 257 pcpar[0] = 0.;
258 pcpar[1] = 360.;
259 pcpar[2] = 3.;
260 pcpar[3] = zW-dZ;
dbbe5bc1 261 pcpar[4] = kRAbs;
262 pcpar[5] = zW * TMath::Tan(kAccMin);
263 pcpar[6] = kZOpen-dZ;
264 pcpar[7] = kRAbs;
265 pcpar[8] = kZOpen * TMath::Tan(kAccMin);
266 pcpar[9] = kZRear-kDRear-dZ;
267 pcpar[10] = kRAbs+(kZRear-kDRear-kZOpen) * TMath::Tan(kThetaOpen1);
268 pcpar[11] = (kZRear-kDRear) * TMath::Tan(kAccMin);
b2ef5f06 269
270 gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12);
dbbe5bc1 271 dz=(zW+kZRear-kDRear)/2-(kZAbsStart+kZRear)/2.;
43d014f0 272 gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY");
8f657ed5 273//
274// First part replaced by Carbon
275//
513b07d0 276 cpar[0] = (200.-zW)/2.;
dbbe5bc1 277 cpar[1] = kRAbs;
513b07d0 278 cpar[2] = pcpar[5];
dbbe5bc1 279 cpar[3] = kRAbs;
280 cpar[4] = 200. * TMath::Tan(kAccMin);
513b07d0 281 gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5);
282 dz = zW-dZ+cpar[0];
513b07d0 283 gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY");
8f657ed5 284
8f657ed5 285/*
ba47c054 286 Float_t zWW = 383.5;
dbbe5bc1 287 cpar[0] = (kZRear-kDRear-zWW)/2.;
288 cpar[1] = kRAbs + (zWW-kZOpen) * TMath::Tan(kThetaOpen1);
289 cpar[2] = zWW * TMath::Tan(kAccMin);
8f657ed5 290 cpar[3] = pcpar[10];
291 cpar[4] = pcpar[11];
292 gMC->Gsvolu("AWNO", "CONE", idtmed[kCu+40], cpar, 5);
293 dz = zWW-dZ+cpar[0];
294
295 gMC->Gspos("AWNO", 1, "AWIN", 0., 0., dz, 0, "ONLY");
296*/
297 //
43d014f0 298 // Inner tracking region
299 //
381ec9af 300 // mother volume: Cu
43d014f0 301 //
8f657ed5 302 //
43d014f0 303 pcpar[0] = 0.;
304 pcpar[1] = 360.;
305 pcpar[2] = 3.;
dbbe5bc1 306 pcpar[3] = -(kZRear-kZAbsStart)/2.;
307 pcpar[4] = kRAbs;
308 pcpar[5] = kZAbsStart * TMath::Tan(kAccMax);
309 pcpar[6] = pcpar[3]+(kZTwoDeg-kZAbsStart);
310 pcpar[7] = kRAbs;
311 pcpar[8] = kZTwoDeg * TMath::Tan(kAccMax);
85d164ab 312 pcpar[9] = -pcpar[3];
dbbe5bc1 313 pcpar[10] = kZRear * TMath::Tan(kAccMin);
314 pcpar[11] = kZRear * TMath::Tan(kAccMax);
381ec9af 315 gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12);
43d014f0 316 //
317 // special Pb medium for last 5 cm of Pb
dbbe5bc1 318 Float_t zr=kZRear-2.-0.001;
b2ef5f06 319 cpar[0] = 1.0;
dbbe5bc1 320 cpar[1] = zr * TMath::Tan(kThetaR);
321 cpar[2] = zr * TMath::Tan(kAccMax);
322 cpar[3] = cpar[1] + TMath::Tan(kThetaR) * 2;
323 cpar[4] = cpar[2] + TMath::Tan(kAccMax) * 2;
381ec9af 324 gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5);
dbbe5bc1 325 dz=(kZRear-kZAbsStart)/2.-cpar[0]-0.001;
43d014f0 326 gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY");
43d014f0 327 //
328 // concrete cone: concrete
329 //
dbbe5bc1 330 pcpar[9] = pcpar[3]+(kZRear-kDRear-kZAbsStart);
331 pcpar[10] = (kZRear-kDRear) * TMath::Tan(kAccMin);
332 pcpar[11] = (kZRear-kDRear) * TMath::Tan(kAccMax);
381ec9af 333 gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12);
43d014f0 334 gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY");
381ec9af 335//
336// Fe Cone
337//
dbbe5bc1 338 zr = kZRear-kDRear-dzFe;
381ec9af 339 cpar[0] = dzFe/2.;
dbbe5bc1 340 cpar[1] = zr * TMath::Tan(kAccMin);
341 cpar[2] = zr * TMath::Tan(kAccMax);
342 cpar[3] = cpar[1] + TMath::Tan(kAccMin) * dzFe;
343 cpar[4] = cpar[2] + TMath::Tan(kAccMax) * dzFe;
381ec9af 344 gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5);
345
dbbe5bc1 346 dz = (kZRear-kZAbsStart)/2.-kDRear-dzFe/2.;
381ec9af 347
348 gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY");
349
350
351 //
43d014f0 352 //
353 // carbon cone: carbon
354 //
dbbe5bc1 355 pcpar[9] = pcpar[3]+(kZAbsCc-kZAbsStart);
356 pcpar[10] = kZAbsCc * TMath::Tan(kAccMin);
357 pcpar[11] = kZAbsCc * TMath::Tan(kAccMax);
381ec9af 358 gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12);
43d014f0 359 gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY");
b2ef5f06 360 //
361 // carbon cone outer region
362 //
363 cpar[0] = 10.;
dbbe5bc1 364 cpar[1] = kRAbs;
365 cpar[2] = kZAbsStart* TMath::Tan(kAccMax);
366 cpar[3] = kRAbs;
367 cpar[4] = cpar[2]+2. * cpar[0] * TMath::Tan(kAccMax);
b2ef5f06 368
381ec9af 369 gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5);
dbbe5bc1 370 dz=-(kZRear-kZAbsStart)/2.+cpar[0];
b2ef5f06 371 gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY");
43d014f0 372 //
373 // inner W shield
b2ef5f06 374 Float_t epsi=0.;
375 Float_t repsi=1.;
376
dbbe5bc1 377 zr=kZRear-(kDRear-epsi);
378 cpar[0] = (kDRear-epsi)/2.;
379 cpar[1] = zr * TMath::Tan(kAccMin);
380 cpar[2] = zr * TMath::Tan(kThetaR*repsi);
381 cpar[3] = cpar[1] + TMath::Tan(kAccMin) * (kDRear-epsi);
382 cpar[4] = cpar[2] + TMath::Tan(kThetaR*repsi) * (kDRear-epsi);
381ec9af 383 gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][4]+40], cpar, 5);
dbbe5bc1 384 dz=(kZRear-kZAbsStart)/2.-cpar[0];
43d014f0 385 gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY");
386 //
387 // special W medium for last 5 cm of W
dbbe5bc1 388 zr=kZRear-5;
43d014f0 389 cpar[0] = 2.5;
dbbe5bc1 390 cpar[1] = zr * TMath::Tan(kAccMin);
391 cpar[2] = zr * TMath::Tan(kThetaR*repsi);
392 cpar[3] = cpar[1] + TMath::Tan(kAccMin) * 5.;
393 cpar[4] = cpar[2] + TMath::Tan(kThetaR*repsi) * 5.;
381ec9af 394 gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][4]+20], cpar, 5);
dbbe5bc1 395 dz=(kDRear-epsi)/2.-cpar[0];
43d014f0 396 gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY");
397 //
381ec9af 398 // Cu
dbbe5bc1 399 Float_t drMin=TMath::Tan(kThetaR) * 5;
400 Float_t drMax=TMath::Tan(kAccMax) * 5;
381ec9af 401 gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0);
43d014f0 402 cpar[0]=2.5;
74c0d076 403 { // Begin local scope for i
b2ef5f06 404 for (Int_t i=0; i<3; i++) {
dbbe5bc1 405 zr=kZRear-kDRear+5+i*10.;
406 cpar[1] = zr * TMath::Tan(kThetaR);
407 cpar[2] = zr * TMath::Tan(kAccMax);
b2ef5f06 408 cpar[3] = cpar[1] + drMin;
409 cpar[4] = cpar[2] + drMax;
dbbe5bc1 410 dz=(kZRear-kZAbsStart)/2.-cpar[0]-5.-(2-i)*10;
b2ef5f06 411 gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5);
412 }
74c0d076 413 } // End local scope for i
43d014f0 414 gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY");
dbbe5bc1 415 dz = (kZRear-kZAbsStart)/2.+kZAbsStart;
43d014f0 416 gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
417//
418//
419// vacuum system
420//
421// pipe and heating jackets
422//
423//
424// cylindrical piece
dbbe5bc1 425 tpar0[2]=(kZOpen-kZAbsStart)/2;
426 tpar0[0]=kRVacu;
427 tpar0[1]=kRVacu+dTube+dInsu+dEnve;
b2ef5f06 428 gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3);
43d014f0 429//
430// insulation
b2ef5f06 431
43d014f0 432 tpar[2]=tpar0[2];
dbbe5bc1 433 tpar[0]=kRVacu+dTube;
b2ef5f06 434 tpar[1]=tpar[0]+dInsu;
435 gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3);
43d014f0 436 gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY");
b2ef5f06 437//
dbbe5bc1 438 dz=-(kZRear-kZAbsStart)/2.+tpar0[2];
43d014f0 439 gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY");
43d014f0 440//
441// conical piece
b2ef5f06 442
dbbe5bc1 443 cpar0[0]=(kZRear-kDRear-kZOpen)/2;
444 cpar0[1]= kRVacu-0.05;
445 cpar0[2]= kRVacu+dTube+dInsu+dEnve;
446 Float_t dR=2.*cpar0[0]*TMath::Tan(kThetaOpen1);
b2ef5f06 447 cpar0[3]=cpar0[1]+dR;
448 cpar0[4]=cpar0[2]+dR;
449 gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5);
450 dTube+=0.05;
451
43d014f0 452//
453// insulation
454 cpar[0]=cpar0[0];
b2ef5f06 455 cpar[1]=cpar0[1]+dTube;
456 cpar[2]=cpar0[1]+dTube+dInsu;
457 cpar[3]=cpar0[3]+dTube;
458 cpar[4]=cpar0[3]+dTube+dInsu;
459 gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5);
43d014f0 460 gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY");
43d014f0 461
dbbe5bc1 462 dz=(kZRear-kZAbsStart)/2.-cpar0[0]-kDRear;
43d014f0 463 gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY");
381ec9af 464//
465// Support cone
466
513b07d0 467 par[0] = 22.5;
468 par[1] = 360.0;
469 par[2] = 8.0;
470 par[3] = 4.0;
381ec9af 471
dbbe5bc1 472 par[4] = kZRear;
513b07d0 473 par[5] = 100.;
8f657ed5 474 par[6] = 180.;
381ec9af 475
dbbe5bc1 476 par[7] = kZRear+20.;
513b07d0 477 par[8] = 100.;
8f657ed5 478 par[9] = 180.;
381ec9af 479
dbbe5bc1 480 par[10] = kZRear+20.;
8f657ed5 481 par[11] = 178.;
482 par[12] = 180.;
381ec9af 483
513b07d0 484 par[13] = 600.;
8f657ed5 485 par[14] = 178.;
486 par[15] = 180.;
381ec9af 487
488
8f657ed5 489 gMC->Gsvolu("ASSS", "PGON", idtmed[kAl], par, 16);
381ec9af 490 gMC->Gspos("ASSS", 1, "ALIC", 0., 0., 0., 0, "ONLY");
491
513b07d0 492 Float_t trap[11];
493 trap[ 0] = (530.-170.)/2.;
494 trap[ 2] = 0.;
495 trap[ 3] = 2.;
dbbe5bc1 496 trap[ 4] = (600.-(kZRear+2.))/2.;;
513b07d0 497 trap[ 5] = trap[4];
498 trap[ 6] = 0.;
499 trap[ 7] = 2.;
500 trap[ 8] = 5.;
501 trap[ 9] = 5.;
502 trap[10] = 0.;
503 trap[ 1] = -TMath::ATan((trap[4]-trap[8])/2./trap[0])*180./TMath::Pi();
504 AliMatrix(idrotm[1600], 180., 0., 90., 0., 90., 90.);
505 AliMatrix(idrotm[1601], 180., 0., 90., 0., 90., 270.);
506 gMC->Gsvolu("ASST", "TRAP", idtmed[kSteel], trap, 11);
dbbe5bc1 507 dz = (600.+kZRear+2.)/2.+(trap[4]-trap[8])/2.;
ba47c054 508 // Float_t dy = 170.+trap[0];
513b07d0 509
8f657ed5 510// gMC->Gspos("ASST", 1, "ALIC", 0., dy, dz, idrotm[1600], "ONLY");
511// gMC->Gspos("ASST", 2, "ALIC", 0., -dy, dz, idrotm[1601], "ONLY");
43d014f0 512}
513
514//_____________________________________________________________________________
515
516void AliABSOv0::Init()
517{
518 //
519 // Initialisation of the muon absorber after it has been built
520 Int_t i;
521 //
9e1a0ddb 522 if(fDebug) {
523 printf("\n%s: ",ClassName());
524 for(i=0;i<35;i++) printf("*");
525 printf(" ABSOv0_INIT ");
526 for(i=0;i<35;i++) printf("*");
527 printf("\n%s: ",ClassName());
528 //
529 for(i=0;i<80;i++) printf("*");
530 printf("\n");
531 }
43d014f0 532}
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