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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$Log$
43ea1292 18Revision 1.15 2002/10/29 09:53:40 morsch
19Constants start with k. Warnings corrected.
20
dbbe5bc1 21Revision 1.14 2002/10/21 09:09:33 alibrary
22Removing unused variables
23
ba47c054 24Revision 1.13 2002/10/14 14:57:34 hristov
25Merging the VirtualMC branch to the main development branch (HEAD)
26
b9d0a01d 27Revision 1.11.6.1 2002/07/24 10:08:27 alibrary
28Updating VirtualMC
29
30Revision 1.12 2002/07/15 07:56:41 morsch
31Steel rear and Al ring.
32
8f657ed5 33Revision 1.11 2001/11/29 14:16:51 morsch
34- truncated inner W-cone
35- new support structure
36
513b07d0 37Revision 1.10 2001/10/25 08:50:57 morsch
38New beamshield geometry with increased tolerances and insulation thickness.
39
77976fd8 40Revision 1.9 2001/05/16 14:57:22 alibrary
41New files for folders and Stack
42
9e1a0ddb 43Revision 1.8 2001/01/12 13:16:09 morsch
44Store absorber composition information in fMLayers and fZLayers
45Rear 25 cm Fe + 35 cm Cu
46
381ec9af 47Revision 1.7 2000/10/02 21:28:15 fca
48Removal of useless dependecies via forward declarations
49
94de3818 50Revision 1.6 2000/06/15 09:40:31 morsch
51Obsolete typedef keyword removed
52
56f14ac2 53Revision 1.5 2000/06/12 19:39:01 morsch
54New structure of beam pipe and heating jacket.
55
b2ef5f06 56Revision 1.4 2000/04/03 08:13:40 fca
57Introduce extra scope for non ANSI compliant C++ compilers
58
74c0d076 59Revision 1.3 2000/01/18 17:49:56 morsch
60Serious overlap of ABSM with shield corrected
61Small error in ARPB parameters corrected
62
85d164ab 63Revision 1.2 2000/01/13 11:23:59 morsch
64Last layer of Pb outer angle corrected
65
54fba644 66Revision 1.1 2000/01/12 15:39:30 morsch
b2ef5f06 67Standard version of ABSO
54fba644 68
43d014f0 69*/
70
71///////////////////////////////////////////////////////////////////////////////
72// //
73// Muon ABSOrber //
74// This class contains the description of the muon absorber geometry //
75// //
76//Begin_Html
77/*
78<img src="picts/AliABSOClass.gif">
79</pre>
80<br clear=left>
81<font size=+2 color=red>
82<p>The responsible person for this module is
83<a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
84</font>
85<pre>
86*/
87//End_Html
88// //
89// //
90///////////////////////////////////////////////////////////////////////////////
91
92#include "AliABSOv0.h"
93#include "AliRun.h"
94#include "AliConst.h"
b2ef5f06 95
43d014f0 96ClassImp(AliABSOv0)
97
98//_____________________________________________________________________________
99AliABSOv0::AliABSOv0()
100{
101 //
102 // Default constructor
103 //
104}
105
106//_____________________________________________________________________________
107AliABSOv0::AliABSOv0(const char *name, const char *title)
108 : AliABSO(name,title)
109{
110 //
111 // Standard constructor
112 //
113 SetMarkerColor(7);
114 SetMarkerStyle(2);
115 SetMarkerSize(0.4);
116}
117
118//_____________________________________________________________________________
119void AliABSOv0::CreateGeometry()
120{
b2ef5f06 121 //
122 // Creation of the geometry of the muon absorber
123 //
124 //Begin_Html
125 /*
126 <img src="picts/AliABSOv0Tree.gif">
127 */
128 //End_Html
129 //Begin_Html
130 /*
131 <img src="picts/AliABSOv0.gif">
132 */
133 //End_Html
134
135 //
136 //
56f14ac2 137
138 enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612,
77976fd8 139 kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616,
140 kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619};
b2ef5f06 141
142 Int_t *idtmed = fIdtmed->GetArray()-1599;
43d014f0 143
b2ef5f06 144 Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3];
145 Float_t dz;
513b07d0 146 Int_t idrotm[1699];
b2ef5f06 147#include "ABSOSHILConst.h"
148#include "ABSOConst.h"
381ec9af 149//
150// Structure of Tracking Region
151//
152 Float_t dzFe = 25.;
153
154// 3 < theta < 9
155 fNLayers[0] = 5;
dbbe5bc1 156 fMLayers[0][0] = kAir; fZLayers[0][0] = kZAbsStart;
157 fMLayers[0][1] = kC; fZLayers[0][1] = kZAbsCc;
158 fMLayers[0][2] = kConcrete; fZLayers[0][2] = kZRear-kDRear-dzFe;
159 fMLayers[0][3] = kSteel; fZLayers[0][3] = kZRear-kDRear;
160 fMLayers[0][4] = kSteel; fZLayers[0][4] = kZRear;
381ec9af 161// 2 < theta < 3
dbbe5bc1 162 fNLayers[1] = 6;
163
164 fMLayers[1][0] = kAir ; fZLayers[1][0] = fZLayers[0][0]-10.;
165 fMLayers[1][1] = kAl ; fZLayers[1][1] = fZLayers[0][0];
166 fMLayers[1][2] = fMLayers[0][1]; fZLayers[1][2] = fZLayers[0][1];
167 fMLayers[1][3] = fMLayers[0][2]; fZLayers[1][3] = fZLayers[0][2];
168 fMLayers[1][4] = fMLayers[0][3]; fZLayers[1][4] = fZLayers[0][3];
169 fMLayers[1][5] = kNiCuW; fZLayers[1][5] = fZLayers[0][4];
381ec9af 170//
171
b2ef5f06 172 Float_t dTube=0.1; // tube thickness
173 Float_t dInsu=0.5; // insulation thickness
174 Float_t dEnve=0.1; // protective envelope thickness
ba47c054 175 // Float_t dFree=0.5; // clearance thickness
b2ef5f06 176
177
178// Mother volume and outer shielding: Pb
43d014f0 179 par[0] = 0.;
180 par[1] = 360.;
181 par[2] = 7.;
b2ef5f06 182
dbbe5bc1 183 par[3] = -(kZRear-kZAbsStart)/2.;
184 par[4] = kRAbs;
185 par[5] = kZAbsStart * TMath::Tan(kTheta1);
43d014f0 186
dbbe5bc1 187 par[6] = par[3]+(kZNose-kZAbsStart);
188 par[7] = kRAbs;
189 par[8] = kZNose * TMath::Tan(kTheta1);
43d014f0 190
dbbe5bc1 191 par[9] = par[3]+(kZConeTPC-kZAbsStart);
192 par[10] = kRAbs;
193 par[11] = par[8] + (par[9] - par[6]) * TMath::Tan(kTheta2);
43d014f0 194
dbbe5bc1 195 par[12] = par[3]+(kZOpen-kZAbsStart);
196 par[13] = kRAbs;
197 par[14] = par[11] + (par[12] - par[9]) * TMath::Tan(kAccMax);
43d014f0 198
dbbe5bc1 199 par[15] = par[3]+(kZRear-kDRear-kZAbsStart);
200 par[16] = kRAbs + (par[15] - par[12]) * TMath::Tan(kThetaOpen1) ;
201 par[17] = par[14] + (par[15] - par[12]) * TMath::Tan(kAccMax);
43d014f0 202
dbbe5bc1 203 par[18] = par[3]+(kZRear-kDRear-kZAbsStart);
204 par[19] = (kZRear-kDRear) * TMath::Tan(kAccMin);
205 par[20] = par[14] + (par[18] - par[12]) * TMath::Tan(kAccMax);
43d014f0 206
207 par[21] = -par[3];
dbbe5bc1 208 par[22] = kZRear* TMath::Tan(kAccMin);
209 par[23] = par[20] + (par[21] - par[18]) * TMath::Tan(kAccMax);
b2ef5f06 210 gMC->Gsvolu("ABSS", "PCON", idtmed[kPb], par, 24);
74c0d076 211 { // Begin local scope for i
b2ef5f06 212 for (Int_t i=4; i<18; i+=3) par[i] = 0;
74c0d076 213 } // End local scope for i
b2ef5f06 214 gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24);
43d014f0 215 gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY");
216
217//
218// Steel envelope
219//
dbbe5bc1 220 par[4] = par[5] -kDSteel;
221 par[7] = par[8] -kDSteel;
222 par[10]= par[11]-kDSteel;
223 par[13]= par[14]-kDSteel;
224 par[16]= par[17]-kDSteel;
225 par[19]= par[20]-kDSteel;
226 par[22]= par[23]-kDSteel;
b2ef5f06 227 gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24);
43d014f0 228 gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY");
229//
230// Polyethylene shield
231//
dbbe5bc1 232 cpar[0] = (kZRear - kZConeTPC) / 2.;
233 cpar[1] = kZConeTPC * TMath::Tan(kAccMax);
234 cpar[2] = cpar[1] + kDPoly;
235 cpar[3] = kZRear * TMath::Tan(kAccMax);
236 cpar[4] = cpar[3] + kDPoly;
b2ef5f06 237 gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5);
dbbe5bc1 238 dz = (kZRear-kZAbsStart)/2.-cpar[0];
43d014f0 239 gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY");
240
241//
242// Tungsten nose to protect TPC
243//
dbbe5bc1 244 cpar[0] = (kZNose - kZAbsStart) / 2.;
245 cpar[1] = kZAbsStart * TMath::Tan(kAccMax);
246 cpar[2] = kZAbsStart * TMath::Tan(kTheta1)-kDSteel;
247 cpar[3] = kZNose * TMath::Tan(kAccMax);
248 cpar[4] = kZNose * TMath::Tan(kTheta1)-kDSteel;
b2ef5f06 249 gMC->Gsvolu("ANOS", "CONE", idtmed[kW], cpar, 5);
8f657ed5 250 //
dbbe5bc1 251 dz = -(kZRear-kZAbsStart)/2.+cpar[0];
43d014f0 252 gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY");
8f657ed5 253 //
254 // Tungsten inner shield
255 //
dbbe5bc1 256 Float_t zW = kZTwoDeg+.1;
257 Float_t dZ = zW+(kZRear-kDRear-zW)/2.;
43d014f0 258 //
b2ef5f06 259 pcpar[0] = 0.;
260 pcpar[1] = 360.;
261 pcpar[2] = 3.;
262 pcpar[3] = zW-dZ;
dbbe5bc1 263 pcpar[4] = kRAbs;
264 pcpar[5] = zW * TMath::Tan(kAccMin);
265 pcpar[6] = kZOpen-dZ;
266 pcpar[7] = kRAbs;
267 pcpar[8] = kZOpen * TMath::Tan(kAccMin);
268 pcpar[9] = kZRear-kDRear-dZ;
269 pcpar[10] = kRAbs+(kZRear-kDRear-kZOpen) * TMath::Tan(kThetaOpen1);
270 pcpar[11] = (kZRear-kDRear) * TMath::Tan(kAccMin);
b2ef5f06 271
272 gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12);
dbbe5bc1 273 dz=(zW+kZRear-kDRear)/2-(kZAbsStart+kZRear)/2.;
43d014f0 274 gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY");
8f657ed5 275//
276// First part replaced by Carbon
277//
513b07d0 278 cpar[0] = (200.-zW)/2.;
dbbe5bc1 279 cpar[1] = kRAbs;
513b07d0 280 cpar[2] = pcpar[5];
dbbe5bc1 281 cpar[3] = kRAbs;
282 cpar[4] = 200. * TMath::Tan(kAccMin);
513b07d0 283 gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5);
284 dz = zW-dZ+cpar[0];
513b07d0 285 gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY");
8f657ed5 286
8f657ed5 287/*
ba47c054 288 Float_t zWW = 383.5;
dbbe5bc1 289 cpar[0] = (kZRear-kDRear-zWW)/2.;
290 cpar[1] = kRAbs + (zWW-kZOpen) * TMath::Tan(kThetaOpen1);
291 cpar[2] = zWW * TMath::Tan(kAccMin);
8f657ed5 292 cpar[3] = pcpar[10];
293 cpar[4] = pcpar[11];
294 gMC->Gsvolu("AWNO", "CONE", idtmed[kCu+40], cpar, 5);
295 dz = zWW-dZ+cpar[0];
296
297 gMC->Gspos("AWNO", 1, "AWIN", 0., 0., dz, 0, "ONLY");
298*/
299 //
43d014f0 300 // Inner tracking region
301 //
381ec9af 302 // mother volume: Cu
43d014f0 303 //
8f657ed5 304 //
43d014f0 305 pcpar[0] = 0.;
306 pcpar[1] = 360.;
307 pcpar[2] = 3.;
dbbe5bc1 308 pcpar[3] = -(kZRear-kZAbsStart)/2.;
309 pcpar[4] = kRAbs;
310 pcpar[5] = kZAbsStart * TMath::Tan(kAccMax);
311 pcpar[6] = pcpar[3]+(kZTwoDeg-kZAbsStart);
312 pcpar[7] = kRAbs;
313 pcpar[8] = kZTwoDeg * TMath::Tan(kAccMax);
85d164ab 314 pcpar[9] = -pcpar[3];
dbbe5bc1 315 pcpar[10] = kZRear * TMath::Tan(kAccMin);
316 pcpar[11] = kZRear * TMath::Tan(kAccMax);
381ec9af 317 gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12);
43d014f0 318 //
319 // special Pb medium for last 5 cm of Pb
dbbe5bc1 320 Float_t zr=kZRear-2.-0.001;
b2ef5f06 321 cpar[0] = 1.0;
dbbe5bc1 322 cpar[1] = zr * TMath::Tan(kThetaR);
323 cpar[2] = zr * TMath::Tan(kAccMax);
324 cpar[3] = cpar[1] + TMath::Tan(kThetaR) * 2;
325 cpar[4] = cpar[2] + TMath::Tan(kAccMax) * 2;
381ec9af 326 gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5);
dbbe5bc1 327 dz=(kZRear-kZAbsStart)/2.-cpar[0]-0.001;
43d014f0 328 gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY");
43d014f0 329 //
330 // concrete cone: concrete
331 //
dbbe5bc1 332 pcpar[9] = pcpar[3]+(kZRear-kDRear-kZAbsStart);
333 pcpar[10] = (kZRear-kDRear) * TMath::Tan(kAccMin);
334 pcpar[11] = (kZRear-kDRear) * TMath::Tan(kAccMax);
381ec9af 335 gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12);
43d014f0 336 gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY");
381ec9af 337//
338// Fe Cone
339//
dbbe5bc1 340 zr = kZRear-kDRear-dzFe;
381ec9af 341 cpar[0] = dzFe/2.;
dbbe5bc1 342 cpar[1] = zr * TMath::Tan(kAccMin);
343 cpar[2] = zr * TMath::Tan(kAccMax);
344 cpar[3] = cpar[1] + TMath::Tan(kAccMin) * dzFe;
345 cpar[4] = cpar[2] + TMath::Tan(kAccMax) * dzFe;
381ec9af 346 gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5);
347
dbbe5bc1 348 dz = (kZRear-kZAbsStart)/2.-kDRear-dzFe/2.;
381ec9af 349
350 gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY");
351
352
353 //
43d014f0 354 //
355 // carbon cone: carbon
356 //
dbbe5bc1 357 pcpar[9] = pcpar[3]+(kZAbsCc-kZAbsStart);
358 pcpar[10] = kZAbsCc * TMath::Tan(kAccMin);
359 pcpar[11] = kZAbsCc * TMath::Tan(kAccMax);
381ec9af 360 gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12);
43d014f0 361 gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY");
b2ef5f06 362 //
363 // carbon cone outer region
364 //
365 cpar[0] = 10.;
dbbe5bc1 366 cpar[1] = kRAbs;
367 cpar[2] = kZAbsStart* TMath::Tan(kAccMax);
368 cpar[3] = kRAbs;
369 cpar[4] = cpar[2]+2. * cpar[0] * TMath::Tan(kAccMax);
b2ef5f06 370
381ec9af 371 gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5);
dbbe5bc1 372 dz=-(kZRear-kZAbsStart)/2.+cpar[0];
b2ef5f06 373 gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY");
43d014f0 374 //
375 // inner W shield
b2ef5f06 376 Float_t epsi=0.;
377 Float_t repsi=1.;
378
dbbe5bc1 379 zr=kZRear-(kDRear-epsi);
380 cpar[0] = (kDRear-epsi)/2.;
381 cpar[1] = zr * TMath::Tan(kAccMin);
382 cpar[2] = zr * TMath::Tan(kThetaR*repsi);
383 cpar[3] = cpar[1] + TMath::Tan(kAccMin) * (kDRear-epsi);
384 cpar[4] = cpar[2] + TMath::Tan(kThetaR*repsi) * (kDRear-epsi);
381ec9af 385 gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][4]+40], cpar, 5);
dbbe5bc1 386 dz=(kZRear-kZAbsStart)/2.-cpar[0];
43d014f0 387 gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY");
388 //
389 // special W medium for last 5 cm of W
dbbe5bc1 390 zr=kZRear-5;
43d014f0 391 cpar[0] = 2.5;
dbbe5bc1 392 cpar[1] = zr * TMath::Tan(kAccMin);
393 cpar[2] = zr * TMath::Tan(kThetaR*repsi);
394 cpar[3] = cpar[1] + TMath::Tan(kAccMin) * 5.;
395 cpar[4] = cpar[2] + TMath::Tan(kThetaR*repsi) * 5.;
381ec9af 396 gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][4]+20], cpar, 5);
dbbe5bc1 397 dz=(kDRear-epsi)/2.-cpar[0];
43d014f0 398 gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY");
399 //
381ec9af 400 // Cu
dbbe5bc1 401 Float_t drMin=TMath::Tan(kThetaR) * 5;
402 Float_t drMax=TMath::Tan(kAccMax) * 5;
381ec9af 403 gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0);
43d014f0 404 cpar[0]=2.5;
74c0d076 405 { // Begin local scope for i
b2ef5f06 406 for (Int_t i=0; i<3; i++) {
dbbe5bc1 407 zr=kZRear-kDRear+5+i*10.;
408 cpar[1] = zr * TMath::Tan(kThetaR);
409 cpar[2] = zr * TMath::Tan(kAccMax);
b2ef5f06 410 cpar[3] = cpar[1] + drMin;
411 cpar[4] = cpar[2] + drMax;
dbbe5bc1 412 dz=(kZRear-kZAbsStart)/2.-cpar[0]-5.-(2-i)*10;
b2ef5f06 413 gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5);
414 }
74c0d076 415 } // End local scope for i
43d014f0 416 gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY");
dbbe5bc1 417 dz = (kZRear-kZAbsStart)/2.+kZAbsStart;
43d014f0 418 gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
419//
420//
421// vacuum system
422//
423// pipe and heating jackets
424//
425//
426// cylindrical piece
dbbe5bc1 427 tpar0[2]=(kZOpen-kZAbsStart)/2;
428 tpar0[0]=kRVacu;
429 tpar0[1]=kRVacu+dTube+dInsu+dEnve;
b2ef5f06 430 gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3);
43d014f0 431//
432// insulation
b2ef5f06 433
43d014f0 434 tpar[2]=tpar0[2];
dbbe5bc1 435 tpar[0]=kRVacu+dTube;
b2ef5f06 436 tpar[1]=tpar[0]+dInsu;
437 gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3);
43d014f0 438 gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY");
b2ef5f06 439//
dbbe5bc1 440 dz=-(kZRear-kZAbsStart)/2.+tpar0[2];
43d014f0 441 gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY");
43d014f0 442//
443// conical piece
b2ef5f06 444
dbbe5bc1 445 cpar0[0]=(kZRear-kDRear-kZOpen)/2;
446 cpar0[1]= kRVacu-0.05;
447 cpar0[2]= kRVacu+dTube+dInsu+dEnve;
448 Float_t dR=2.*cpar0[0]*TMath::Tan(kThetaOpen1);
b2ef5f06 449 cpar0[3]=cpar0[1]+dR;
450 cpar0[4]=cpar0[2]+dR;
451 gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5);
452 dTube+=0.05;
453
43d014f0 454//
455// insulation
456 cpar[0]=cpar0[0];
b2ef5f06 457 cpar[1]=cpar0[1]+dTube;
458 cpar[2]=cpar0[1]+dTube+dInsu;
459 cpar[3]=cpar0[3]+dTube;
460 cpar[4]=cpar0[3]+dTube+dInsu;
461 gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5);
43d014f0 462 gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY");
43d014f0 463
dbbe5bc1 464 dz=(kZRear-kZAbsStart)/2.-cpar0[0]-kDRear;
43d014f0 465 gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY");
381ec9af 466//
467// Support cone
468
513b07d0 469 par[0] = 22.5;
470 par[1] = 360.0;
471 par[2] = 8.0;
472 par[3] = 4.0;
381ec9af 473
dbbe5bc1 474 par[4] = kZRear;
513b07d0 475 par[5] = 100.;
8f657ed5 476 par[6] = 180.;
381ec9af 477
dbbe5bc1 478 par[7] = kZRear+20.;
513b07d0 479 par[8] = 100.;
8f657ed5 480 par[9] = 180.;
381ec9af 481
dbbe5bc1 482 par[10] = kZRear+20.;
8f657ed5 483 par[11] = 178.;
484 par[12] = 180.;
381ec9af 485
513b07d0 486 par[13] = 600.;
8f657ed5 487 par[14] = 178.;
488 par[15] = 180.;
381ec9af 489
490
8f657ed5 491 gMC->Gsvolu("ASSS", "PGON", idtmed[kAl], par, 16);
381ec9af 492 gMC->Gspos("ASSS", 1, "ALIC", 0., 0., 0., 0, "ONLY");
493
513b07d0 494 Float_t trap[11];
495 trap[ 0] = (530.-170.)/2.;
496 trap[ 2] = 0.;
497 trap[ 3] = 2.;
dbbe5bc1 498 trap[ 4] = (600.-(kZRear+2.))/2.;;
513b07d0 499 trap[ 5] = trap[4];
500 trap[ 6] = 0.;
501 trap[ 7] = 2.;
502 trap[ 8] = 5.;
503 trap[ 9] = 5.;
504 trap[10] = 0.;
505 trap[ 1] = -TMath::ATan((trap[4]-trap[8])/2./trap[0])*180./TMath::Pi();
506 AliMatrix(idrotm[1600], 180., 0., 90., 0., 90., 90.);
507 AliMatrix(idrotm[1601], 180., 0., 90., 0., 90., 270.);
508 gMC->Gsvolu("ASST", "TRAP", idtmed[kSteel], trap, 11);
dbbe5bc1 509 dz = (600.+kZRear+2.)/2.+(trap[4]-trap[8])/2.;
ba47c054 510 // Float_t dy = 170.+trap[0];
513b07d0 511
8f657ed5 512// gMC->Gspos("ASST", 1, "ALIC", 0., dy, dz, idrotm[1600], "ONLY");
513// gMC->Gspos("ASST", 2, "ALIC", 0., -dy, dz, idrotm[1601], "ONLY");
43d014f0 514}
515
516//_____________________________________________________________________________
517
518void AliABSOv0::Init()
519{
520 //
521 // Initialisation of the muon absorber after it has been built
522 Int_t i;
523 //
9e1a0ddb 524 if(fDebug) {
525 printf("\n%s: ",ClassName());
526 for(i=0;i<35;i++) printf("*");
527 printf(" ABSOv0_INIT ");
528 for(i=0;i<35;i++) printf("*");
529 printf("\n%s: ",ClassName());
530 //
531 for(i=0;i<80;i++) printf("*");
532 printf("\n");
533 }
43d014f0 534}
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