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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 | ||
eeacf08b | 16 | /* $Id$ */ |
43d014f0 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Muon ABSOrber // | |
21 | // This class contains the description of the muon absorber geometry // | |
22 | // // | |
23 | //Begin_Html | |
24 | /* | |
25 | <img src="picts/AliABSOClass.gif"> | |
26 | </pre> | |
27 | <br clear=left> | |
28 | <font size=+2 color=red> | |
29 | <p>The responsible person for this module is | |
30 | <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>. | |
31 | </font> | |
32 | <pre> | |
33 | */ | |
34 | //End_Html | |
35 | // // | |
36 | // // | |
37 | /////////////////////////////////////////////////////////////////////////////// | |
38 | ||
88cb7938 | 39 | #include <TVirtualMC.h> |
40 | ||
43d014f0 | 41 | #include "AliABSOv0.h" |
43d014f0 | 42 | #include "AliConst.h" |
88cb7938 | 43 | #include "AliRun.h" |
b2ef5f06 | 44 | |
43d014f0 | 45 | ClassImp(AliABSOv0) |
46 | ||
47 | //_____________________________________________________________________________ | |
48 | AliABSOv0::AliABSOv0() | |
49 | { | |
50 | // | |
51 | // Default constructor | |
52 | // | |
53 | } | |
54 | ||
55 | //_____________________________________________________________________________ | |
56 | AliABSOv0::AliABSOv0(const char *name, const char *title) | |
57 | : AliABSO(name,title) | |
58 | { | |
59 | // | |
60 | // Standard constructor | |
61 | // | |
62 | SetMarkerColor(7); | |
63 | SetMarkerStyle(2); | |
64 | SetMarkerSize(0.4); | |
65 | } | |
66 | ||
67 | //_____________________________________________________________________________ | |
68 | void AliABSOv0::CreateGeometry() | |
69 | { | |
b2ef5f06 | 70 | // |
71 | // Creation of the geometry of the muon absorber | |
72 | // | |
73 | //Begin_Html | |
74 | /* | |
75 | <img src="picts/AliABSOv0Tree.gif"> | |
76 | */ | |
77 | //End_Html | |
78 | //Begin_Html | |
79 | /* | |
80 | <img src="picts/AliABSOv0.gif"> | |
81 | */ | |
82 | //End_Html | |
83 | ||
84 | // | |
85 | // | |
56f14ac2 | 86 | |
87 | enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612, | |
77976fd8 | 88 | kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616, |
89 | kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619}; | |
b2ef5f06 | 90 | |
91 | Int_t *idtmed = fIdtmed->GetArray()-1599; | |
43d014f0 | 92 | |
b2ef5f06 | 93 | Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3]; |
94 | Float_t dz; | |
513b07d0 | 95 | Int_t idrotm[1699]; |
b2ef5f06 | 96 | #include "ABSOSHILConst.h" |
97 | #include "ABSOConst.h" | |
381ec9af | 98 | // |
99 | // Structure of Tracking Region | |
100 | // | |
101 | Float_t dzFe = 25.; | |
102 | ||
103 | // 3 < theta < 9 | |
104 | fNLayers[0] = 5; | |
dbbe5bc1 | 105 | fMLayers[0][0] = kAir; fZLayers[0][0] = kZAbsStart; |
106 | fMLayers[0][1] = kC; fZLayers[0][1] = kZAbsCc; | |
50ad31cc | 107 | fMLayers[0][2] = kConcrete; fZLayers[0][2] = kZRear - kDRear - dzFe; |
108 | fMLayers[0][3] = kSteel; fZLayers[0][3] = kZRear - kDRear; | |
dbbe5bc1 | 109 | fMLayers[0][4] = kSteel; fZLayers[0][4] = kZRear; |
381ec9af | 110 | // 2 < theta < 3 |
dbbe5bc1 | 111 | fNLayers[1] = 6; |
112 | ||
50ad31cc | 113 | fMLayers[1][0] = kAir ; fZLayers[1][0] = fZLayers[0][0] - 10.; |
dbbe5bc1 | 114 | fMLayers[1][1] = kAl ; fZLayers[1][1] = fZLayers[0][0]; |
115 | fMLayers[1][2] = fMLayers[0][1]; fZLayers[1][2] = fZLayers[0][1]; | |
116 | fMLayers[1][3] = fMLayers[0][2]; fZLayers[1][3] = fZLayers[0][2]; | |
117 | fMLayers[1][4] = fMLayers[0][3]; fZLayers[1][4] = fZLayers[0][3]; | |
118 | fMLayers[1][5] = kNiCuW; fZLayers[1][5] = fZLayers[0][4]; | |
381ec9af | 119 | // |
120 | ||
50ad31cc | 121 | Float_t dTube = 0.1; // tube thickness |
122 | Float_t dInsu = 0.5; // insulation thickness | |
123 | Float_t dEnve = 0.1; // protective envelope thickness | |
b2ef5f06 | 124 | |
125 | ||
126 | // Mother volume and outer shielding: Pb | |
43d014f0 | 127 | par[0] = 0.; |
128 | par[1] = 360.; | |
129 | par[2] = 7.; | |
b2ef5f06 | 130 | |
50ad31cc | 131 | par[21] = (kZRear - kZAbsStart) / 2.; |
132 | par[22] = kRAbs; | |
133 | par[23] = kZAbsStart * TMath::Tan(kTheta1); | |
43d014f0 | 134 | |
50ad31cc | 135 | par[18] = par[21] - (kZNose - kZAbsStart); |
136 | par[19] = kRAbs; | |
137 | par[20] = kZNose * TMath::Tan(kTheta1); | |
43d014f0 | 138 | |
50ad31cc | 139 | par[15] = par[21] - (kZConeTPC - kZAbsStart); |
140 | par[16] = kRAbs; | |
141 | par[17] = par[20] - (par[15] - par[18]) * TMath::Tan(kTheta2); | |
43d014f0 | 142 | |
50ad31cc | 143 | par[12] = par[21] - (kZOpen - kZAbsStart); |
dbbe5bc1 | 144 | par[13] = kRAbs; |
50ad31cc | 145 | par[14] = par[17] - (par[12] - par[15]) * TMath::Tan(kAccMax); |
43d014f0 | 146 | |
50ad31cc | 147 | par[9] = par[21] - (kZRear - kDRear - kZAbsStart); |
148 | par[10] = kRAbs - (par[9] - par[12]) * TMath::Tan(kThetaOpen1) ; | |
149 | par[11] = par[14] - (par[9] - par[12]) * TMath::Tan(kAccMax); | |
43d014f0 | 150 | |
50ad31cc | 151 | par[6] = par[21] - (kZRear - kDRear - kZAbsStart); |
152 | par[7] = (kZRear - kDRear) * TMath::Tan(kAccMin); | |
153 | par[8] = par[14] - (par[6] - par[12]) * TMath::Tan(kAccMax); | |
43d014f0 | 154 | |
50ad31cc | 155 | par[3] = - par[21]; |
156 | par[4] = kZRear * TMath::Tan(kAccMin); | |
157 | par[5] = par[8] - (par[3] - par[6]) * TMath::Tan(kAccMax); | |
b2ef5f06 | 158 | gMC->Gsvolu("ABSS", "PCON", idtmed[kPb], par, 24); |
50ad31cc | 159 | |
160 | for (Int_t i = 22; i > 7; i -= 3) par[i] = 0; | |
161 | ||
b2ef5f06 | 162 | gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24); |
43d014f0 | 163 | gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY"); |
164 | ||
165 | // | |
166 | // Steel envelope | |
167 | // | |
50ad31cc | 168 | par[4] = par[5] - kDSteel; |
169 | par[7] = par[8] - kDSteel; | |
170 | par[10]= par[11] - kDSteel; | |
171 | par[13]= par[14] - kDSteel; | |
172 | par[16]= par[17] - kDSteel; | |
173 | par[19]= par[20] - kDSteel; | |
174 | par[22]= par[23] - kDSteel; | |
175 | ||
b2ef5f06 | 176 | gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24); |
43d014f0 | 177 | gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY"); |
178 | // | |
179 | // Polyethylene shield | |
180 | // | |
dbbe5bc1 | 181 | cpar[0] = (kZRear - kZConeTPC) / 2.; |
50ad31cc | 182 | cpar[1] = kZRear * TMath::Tan(kAccMax); |
dbbe5bc1 | 183 | cpar[2] = cpar[1] + kDPoly; |
50ad31cc | 184 | cpar[3] = kZConeTPC * TMath::Tan(kAccMax); |
dbbe5bc1 | 185 | cpar[4] = cpar[3] + kDPoly; |
50ad31cc | 186 | |
b2ef5f06 | 187 | gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5); |
50ad31cc | 188 | dz = - (kZRear - kZAbsStart) / 2. + cpar[0]; |
43d014f0 | 189 | gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
190 | ||
191 | // | |
192 | // Tungsten nose to protect TPC | |
193 | // | |
dbbe5bc1 | 194 | cpar[0] = (kZNose - kZAbsStart) / 2.; |
50ad31cc | 195 | cpar[1] = kZNose * TMath::Tan(kAccMax); |
196 | cpar[2] = kZNose * TMath::Tan(kTheta1) - kDSteel; | |
197 | cpar[3] = kZAbsStart * TMath::Tan(kAccMax); | |
198 | cpar[4] = kZAbsStart * TMath::Tan(kTheta1) - kDSteel; | |
199 | ||
b2ef5f06 | 200 | gMC->Gsvolu("ANOS", "CONE", idtmed[kW], cpar, 5); |
8f657ed5 | 201 | // |
50ad31cc | 202 | dz = (kZRear - kZAbsStart) / 2. - cpar[0]; |
43d014f0 | 203 | gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
8f657ed5 | 204 | // |
205 | // Tungsten inner shield | |
206 | // | |
50ad31cc | 207 | Float_t zW = kZTwoDeg + .1; |
208 | Float_t dZ = zW + (kZRear - kDRear - zW) / 2.; | |
43d014f0 | 209 | // |
b2ef5f06 | 210 | pcpar[0] = 0.; |
211 | pcpar[1] = 360.; | |
212 | pcpar[2] = 3.; | |
50ad31cc | 213 | pcpar[9] = - (zW - dZ); |
214 | pcpar[10] = kRAbs; | |
215 | pcpar[11] = zW * TMath::Tan(kAccMin); | |
216 | pcpar[6] = - (kZOpen - dZ); | |
dbbe5bc1 | 217 | pcpar[7] = kRAbs; |
218 | pcpar[8] = kZOpen * TMath::Tan(kAccMin); | |
50ad31cc | 219 | pcpar[3] = - (kZRear - kDRear - dZ); |
220 | pcpar[4] = kRAbs + (kZRear - kDRear - kZOpen) * TMath::Tan(kThetaOpen1); | |
221 | pcpar[5] = (kZRear - kDRear) * TMath::Tan(kAccMin); | |
b2ef5f06 | 222 | |
223 | gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12); | |
50ad31cc | 224 | dz = -(zW + kZRear - kDRear) / 2 + (kZAbsStart + kZRear) / 2.; |
43d014f0 | 225 | gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
8f657ed5 | 226 | // |
227 | // First part replaced by Carbon | |
228 | // | |
513b07d0 | 229 | cpar[0] = (200.-zW)/2.; |
50ad31cc | 230 | |
dbbe5bc1 | 231 | cpar[1] = kRAbs; |
50ad31cc | 232 | cpar[2] = 200. * TMath::Tan(kAccMin); |
dbbe5bc1 | 233 | cpar[3] = kRAbs; |
50ad31cc | 234 | cpar[4] = pcpar[11]; |
235 | ||
513b07d0 | 236 | gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5); |
50ad31cc | 237 | dz = - (zW - dZ+cpar[0]); |
513b07d0 | 238 | gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY"); |
8f657ed5 | 239 | |
8f657ed5 | 240 | /* |
ba47c054 | 241 | Float_t zWW = 383.5; |
dbbe5bc1 | 242 | cpar[0] = (kZRear-kDRear-zWW)/2.; |
243 | cpar[1] = kRAbs + (zWW-kZOpen) * TMath::Tan(kThetaOpen1); | |
244 | cpar[2] = zWW * TMath::Tan(kAccMin); | |
8f657ed5 | 245 | cpar[3] = pcpar[10]; |
246 | cpar[4] = pcpar[11]; | |
247 | gMC->Gsvolu("AWNO", "CONE", idtmed[kCu+40], cpar, 5); | |
248 | dz = zWW-dZ+cpar[0]; | |
249 | ||
250 | gMC->Gspos("AWNO", 1, "AWIN", 0., 0., dz, 0, "ONLY"); | |
251 | */ | |
252 | // | |
43d014f0 | 253 | // Inner tracking region |
254 | // | |
43d014f0 | 255 | // |
8f657ed5 | 256 | // |
43d014f0 | 257 | pcpar[0] = 0.; |
258 | pcpar[1] = 360.; | |
259 | pcpar[2] = 3.; | |
50ad31cc | 260 | pcpar[9] = (kZRear - kZAbsStart) / 2.; |
261 | pcpar[10] = kRAbs; | |
262 | pcpar[11] = kZAbsStart * TMath::Tan(kAccMax); | |
263 | pcpar[6] = pcpar[9] - (kZTwoDeg - kZAbsStart); | |
dbbe5bc1 | 264 | pcpar[7] = kRAbs; |
265 | pcpar[8] = kZTwoDeg * TMath::Tan(kAccMax); | |
50ad31cc | 266 | pcpar[3] = - pcpar[9]; |
267 | pcpar[4] = kZRear * TMath::Tan(kAccMin); | |
268 | pcpar[5] = kZRear * TMath::Tan(kAccMax); | |
381ec9af | 269 | gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12); |
43d014f0 | 270 | // |
271 | // special Pb medium for last 5 cm of Pb | |
50ad31cc | 272 | Float_t zr = kZRear - 2. - 0.001; |
b2ef5f06 | 273 | cpar[0] = 1.0; |
50ad31cc | 274 | cpar[3] = zr * TMath::Tan(kThetaR); |
275 | cpar[4] = zr * TMath::Tan(kAccMax); | |
276 | cpar[1] = cpar[3] + TMath::Tan(kThetaR) * 2; | |
277 | cpar[2] = cpar[4] + TMath::Tan(kAccMax) * 2; | |
278 | ||
381ec9af | 279 | gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5); |
50ad31cc | 280 | dz= - (kZRear - kZAbsStart) / 2. + cpar[0] - 0.001; |
43d014f0 | 281 | gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY"); |
43d014f0 | 282 | // |
283 | // concrete cone: concrete | |
284 | // | |
50ad31cc | 285 | pcpar[3] = pcpar[9] - (kZRear - kDRear - kZAbsStart); |
286 | pcpar[4] = (kZRear-kDRear) * TMath::Tan(kAccMin); | |
287 | pcpar[5] = (kZRear-kDRear) * TMath::Tan(kAccMax); | |
381ec9af | 288 | gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12); |
43d014f0 | 289 | gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY"); |
381ec9af | 290 | // |
291 | // Fe Cone | |
292 | // | |
50ad31cc | 293 | zr = kZRear - kDRear - dzFe; |
294 | ||
295 | cpar[0] = dzFe/2.; | |
296 | cpar[3] = zr * TMath::Tan(kAccMin); | |
297 | cpar[4] = zr * TMath::Tan(kAccMax); | |
298 | cpar[1] = cpar[3] + TMath::Tan(kAccMin) * dzFe; | |
299 | cpar[2] = cpar[4] + TMath::Tan(kAccMax) * dzFe; | |
300 | ||
381ec9af | 301 | gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5); |
302 | ||
50ad31cc | 303 | dz = - (kZRear - kZAbsStart) / 2. + kDRear + dzFe / 2.; |
381ec9af | 304 | |
305 | gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY"); | |
306 | ||
307 | ||
308 | // | |
43d014f0 | 309 | // |
310 | // carbon cone: carbon | |
311 | // | |
50ad31cc | 312 | pcpar[3] = pcpar[9] - (kZAbsCc - kZAbsStart); |
313 | pcpar[4] = kZAbsCc * TMath::Tan(kAccMin); | |
314 | pcpar[5] = kZAbsCc * TMath::Tan(kAccMax); | |
381ec9af | 315 | gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12); |
43d014f0 | 316 | gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 | 317 | // |
318 | // carbon cone outer region | |
319 | // | |
320 | cpar[0] = 10.; | |
dbbe5bc1 | 321 | cpar[3] = kRAbs; |
50ad31cc | 322 | cpar[4] = kZAbsStart * TMath::Tan(kAccMax); |
323 | cpar[1] = kRAbs; | |
324 | cpar[2] = cpar[4] + 2. * cpar[0] * TMath::Tan(kAccMax); | |
b2ef5f06 | 325 | |
381ec9af | 326 | gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5); |
50ad31cc | 327 | dz= (kZRear-kZAbsStart) / 2. - cpar[0]; |
b2ef5f06 | 328 | gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY"); |
43d014f0 | 329 | // |
330 | // inner W shield | |
50ad31cc | 331 | Float_t epsi = 0.; |
332 | Float_t repsi = 1.; | |
b2ef5f06 | 333 | |
50ad31cc | 334 | zr = kZRear - (kDRear - epsi); |
335 | cpar[0] = (kDRear - epsi) / 2.; | |
336 | cpar[3] = zr * TMath::Tan(kAccMin); | |
337 | cpar[4] = zr * TMath::Tan(kThetaR * repsi); | |
338 | cpar[1] = cpar[3] + TMath::Tan(kAccMin) * (kDRear - epsi); | |
339 | cpar[2] = cpar[4] + TMath::Tan(kThetaR * repsi) * (kDRear - epsi); | |
340 | ||
381ec9af | 341 | gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][4]+40], cpar, 5); |
50ad31cc | 342 | dz= - (kZRear - kZAbsStart) / 2. + cpar[0]; |
43d014f0 | 343 | gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY"); |
344 | // | |
345 | // special W medium for last 5 cm of W | |
50ad31cc | 346 | zr = kZRear - 5; |
43d014f0 | 347 | cpar[0] = 2.5; |
50ad31cc | 348 | cpar[3] = zr * TMath::Tan(kAccMin); |
349 | cpar[4] = zr * TMath::Tan(kThetaR * repsi); | |
350 | cpar[1] = cpar[3] + TMath::Tan(kAccMin) * 5.; | |
351 | cpar[2] = cpar[4] + TMath::Tan(kThetaR*repsi) * 5.; | |
352 | ||
381ec9af | 353 | gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][4]+20], cpar, 5); |
50ad31cc | 354 | dz = - (kDRear-epsi) / 2. + cpar[0]; |
43d014f0 | 355 | gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY"); |
356 | // | |
381ec9af | 357 | // Cu |
50ad31cc | 358 | Float_t drMin = TMath::Tan(kThetaR) * 5; |
359 | Float_t drMax = TMath::Tan(kAccMax) * 5; | |
381ec9af | 360 | gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0); |
50ad31cc | 361 | cpar[0] = 2.5; |
362 | ||
363 | for (Int_t i = 0; i < 3; i++) { | |
364 | zr = kZRear - kDRear + 5 + i * 10.; | |
365 | cpar[3] = zr * TMath::Tan(kThetaR); | |
366 | cpar[4] = zr * TMath::Tan(kAccMax); | |
367 | cpar[1] = cpar[3] + drMin; | |
368 | cpar[2] = cpar[4] + drMax; | |
369 | dz = - (kZRear - kZAbsStart) / 2. + cpar[0] + 5. + (2 - i)*10; | |
370 | gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5); | |
371 | } | |
372 | ||
43d014f0 | 373 | gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY"); |
50ad31cc | 374 | dz = - (kZRear - kZAbsStart) / 2. - kZAbsStart; |
43d014f0 | 375 | gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY"); |
376 | // | |
377 | // | |
378 | // vacuum system | |
379 | // | |
380 | // pipe and heating jackets | |
381 | // | |
382 | // | |
383 | // cylindrical piece | |
50ad31cc | 384 | tpar0[2] = (kZOpen-kZAbsStart)/2; |
385 | tpar0[0] = kRVacu; | |
386 | tpar0[1] = kRVacu + dTube + dInsu + dEnve; | |
b2ef5f06 | 387 | gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3); |
43d014f0 | 388 | // |
389 | // insulation | |
b2ef5f06 | 390 | |
50ad31cc | 391 | tpar[2] = tpar0[2]; |
392 | tpar[0] = kRVacu + dTube; | |
393 | tpar[1] = tpar[0] + dInsu; | |
b2ef5f06 | 394 | gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3); |
43d014f0 | 395 | gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 | 396 | // |
50ad31cc | 397 | dz = (kZRear - kZAbsStart) / 2. - tpar0[2]; |
43d014f0 | 398 | gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY"); |
43d014f0 | 399 | // |
400 | // conical piece | |
b2ef5f06 | 401 | |
50ad31cc | 402 | cpar0[0] = (kZRear - kDRear - kZOpen) / 2.; |
403 | cpar0[3] = kRVacu - 0.05; | |
404 | cpar0[4] = kRVacu + dTube + dInsu + dEnve; | |
405 | Float_t dR = 2. * cpar0[0] * TMath::Tan(kThetaOpen1); | |
406 | cpar0[1]=cpar0[3] + dR; | |
407 | cpar0[2]=cpar0[4] + dR; | |
b2ef5f06 | 408 | gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5); |
50ad31cc | 409 | dTube += 0.05; |
b2ef5f06 | 410 | |
43d014f0 | 411 | // |
412 | // insulation | |
50ad31cc | 413 | cpar[0] = cpar0[0]; |
414 | cpar[1] = cpar0[1] + dTube; | |
415 | cpar[2] = cpar0[1] + dTube + dInsu; | |
416 | cpar[3] = cpar0[3] + dTube; | |
417 | cpar[4] = cpar0[3] + dTube + dInsu; | |
418 | ||
b2ef5f06 | 419 | gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5); |
43d014f0 | 420 | gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY"); |
43d014f0 | 421 | |
50ad31cc | 422 | dz = - (kZRear - kZAbsStart) / 2. + cpar0[0] + kDRear; |
43d014f0 | 423 | gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY"); |
381ec9af | 424 | // |
425 | // Support cone | |
426 | ||
513b07d0 | 427 | par[0] = 22.5; |
428 | par[1] = 360.0; | |
429 | par[2] = 8.0; | |
430 | par[3] = 4.0; | |
381ec9af | 431 | |
50ad31cc | 432 | par[4] = - kZRear; |
513b07d0 | 433 | par[5] = 100.; |
8f657ed5 | 434 | par[6] = 180.; |
381ec9af | 435 | |
50ad31cc | 436 | par[7] = - kZRear - 20.; |
513b07d0 | 437 | par[8] = 100.; |
8f657ed5 | 438 | par[9] = 180.; |
381ec9af | 439 | |
50ad31cc | 440 | par[10] = - kZRear - 20.; |
8f657ed5 | 441 | par[11] = 178.; |
442 | par[12] = 180.; | |
381ec9af | 443 | |
50ad31cc | 444 | par[13] = - 600.; |
8f657ed5 | 445 | par[14] = 178.; |
446 | par[15] = 180.; | |
381ec9af | 447 | |
448 | ||
8f657ed5 | 449 | gMC->Gsvolu("ASSS", "PGON", idtmed[kAl], par, 16); |
381ec9af | 450 | gMC->Gspos("ASSS", 1, "ALIC", 0., 0., 0., 0, "ONLY"); |
451 | ||
513b07d0 | 452 | Float_t trap[11]; |
50ad31cc | 453 | trap[ 0] = (530. - 170.) / 2.; |
513b07d0 | 454 | trap[ 2] = 0.; |
455 | trap[ 3] = 2.; | |
50ad31cc | 456 | trap[ 4] = (600. - (kZRear + 2.)) / 2.;; |
513b07d0 | 457 | trap[ 5] = trap[4]; |
458 | trap[ 6] = 0.; | |
459 | trap[ 7] = 2.; | |
460 | trap[ 8] = 5.; | |
461 | trap[ 9] = 5.; | |
462 | trap[10] = 0.; | |
50ad31cc | 463 | trap[ 1] = -TMath::ATan((trap[4] - trap[8]) / 2. / trap[0]) * 180. / TMath::Pi(); |
513b07d0 | 464 | AliMatrix(idrotm[1600], 180., 0., 90., 0., 90., 90.); |
465 | AliMatrix(idrotm[1601], 180., 0., 90., 0., 90., 270.); | |
466 | gMC->Gsvolu("ASST", "TRAP", idtmed[kSteel], trap, 11); | |
23f88bcf | 467 | //PH dz = (600.+kZRear+2.)/2.+(trap[4]-trap[8])/2.; |
468 | //PH Float_t dy = 170.+trap[0]; | |
513b07d0 | 469 | |
50ad31cc | 470 | // gMC->Gspos("ASST", 1, "ALIC", 0., dy, - dz, idrotm[1600], "ONLY"); |
471 | // gMC->Gspos("ASST", 2, "ALIC", 0., -dy, - dz, idrotm[1601], "ONLY"); | |
43d014f0 | 472 | } |
473 | ||
474 | //_____________________________________________________________________________ | |
475 | ||
476 | void AliABSOv0::Init() | |
477 | { | |
478 | // | |
479 | // Initialisation of the muon absorber after it has been built | |
480 | Int_t i; | |
481 | // | |
9e1a0ddb | 482 | if(fDebug) { |
483 | printf("\n%s: ",ClassName()); | |
484 | for(i=0;i<35;i++) printf("*"); | |
485 | printf(" ABSOv0_INIT "); | |
486 | for(i=0;i<35;i++) printf("*"); | |
487 | printf("\n%s: ",ClassName()); | |
488 | // | |
489 | for(i=0;i<80;i++) printf("*"); | |
490 | printf("\n"); | |
491 | } | |
43d014f0 | 492 | } |
493 | ||
494 | ||
495 | ||
496 | ||
497 | ||
498 | ||
499 | ||
500 | ||
501 | ||
502 |