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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> |
84e91a25 | 40 | #include <TGeoManager.h> |
41 | #include <TGeoVolume.h> | |
42 | #include <TGeoMatrix.h> | |
43 | #include <TGeoCompositeShape.h> | |
44 | #include <TGeoBBox.h> | |
45 | #include <TGeoXtru.h> | |
46 | #include <TGeoTube.h> | |
47 | #include <TGeoPgon.h> | |
48 | #include <TGeoArb8.h> | |
49 | #include <TGeoMedium.h> | |
88cb7938 | 50 | |
43d014f0 | 51 | #include "AliABSOv0.h" |
43d014f0 | 52 | #include "AliConst.h" |
88cb7938 | 53 | #include "AliRun.h" |
4951e003 | 54 | #include "AliLog.h" |
b2ef5f06 | 55 | |
43d014f0 | 56 | ClassImp(AliABSOv0) |
57 | ||
58 | //_____________________________________________________________________________ | |
59 | AliABSOv0::AliABSOv0() | |
60 | { | |
61 | // | |
62 | // Default constructor | |
63 | // | |
64 | } | |
65 | ||
66 | //_____________________________________________________________________________ | |
67 | AliABSOv0::AliABSOv0(const char *name, const char *title) | |
68 | : AliABSO(name,title) | |
69 | { | |
70 | // | |
71 | // Standard constructor | |
72 | // | |
73 | SetMarkerColor(7); | |
74 | SetMarkerStyle(2); | |
75 | SetMarkerSize(0.4); | |
76 | } | |
77 | ||
78 | //_____________________________________________________________________________ | |
79 | void AliABSOv0::CreateGeometry() | |
80 | { | |
b2ef5f06 | 81 | // |
82 | // Creation of the geometry of the muon absorber | |
83 | // | |
84 | //Begin_Html | |
85 | /* | |
86 | <img src="picts/AliABSOv0Tree.gif"> | |
87 | */ | |
88 | //End_Html | |
89 | //Begin_Html | |
90 | /* | |
91 | <img src="picts/AliABSOv0.gif"> | |
92 | */ | |
93 | //End_Html | |
94 | ||
95 | // | |
96 | // | |
56f14ac2 | 97 | |
98 | enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612, | |
77976fd8 | 99 | kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616, |
84e91a25 | 100 | kPolyCH2=1617, kSteel=1618, kInsulation=1613, kPolyCc=1619}; |
b2ef5f06 | 101 | |
102 | Int_t *idtmed = fIdtmed->GetArray()-1599; | |
43d014f0 | 103 | |
b2ef5f06 | 104 | Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3]; |
105 | Float_t dz; | |
b2ef5f06 | 106 | #include "ABSOSHILConst.h" |
107 | #include "ABSOConst.h" | |
381ec9af | 108 | // |
109 | // Structure of Tracking Region | |
110 | // | |
111 | Float_t dzFe = 25.; | |
112 | ||
113 | // 3 < theta < 9 | |
114 | fNLayers[0] = 5; | |
dbbe5bc1 | 115 | fMLayers[0][0] = kAir; fZLayers[0][0] = kZAbsStart; |
116 | fMLayers[0][1] = kC; fZLayers[0][1] = kZAbsCc; | |
50ad31cc | 117 | fMLayers[0][2] = kConcrete; fZLayers[0][2] = kZRear - kDRear - dzFe; |
118 | fMLayers[0][3] = kSteel; fZLayers[0][3] = kZRear - kDRear; | |
dbbe5bc1 | 119 | fMLayers[0][4] = kSteel; fZLayers[0][4] = kZRear; |
381ec9af | 120 | // 2 < theta < 3 |
dbbe5bc1 | 121 | fNLayers[1] = 6; |
122 | ||
50ad31cc | 123 | fMLayers[1][0] = kAir ; fZLayers[1][0] = fZLayers[0][0] - 10.; |
dbbe5bc1 | 124 | fMLayers[1][1] = kAl ; fZLayers[1][1] = fZLayers[0][0]; |
125 | fMLayers[1][2] = fMLayers[0][1]; fZLayers[1][2] = fZLayers[0][1]; | |
126 | fMLayers[1][3] = fMLayers[0][2]; fZLayers[1][3] = fZLayers[0][2]; | |
127 | fMLayers[1][4] = fMLayers[0][3]; fZLayers[1][4] = fZLayers[0][3]; | |
b14ff348 | 128 | fMLayers[1][5] = kNiCuW; fZLayers[1][5] = fZLayers[0][4]; |
381ec9af | 129 | // |
130 | ||
50ad31cc | 131 | Float_t dTube = 0.1; // tube thickness |
132 | Float_t dInsu = 0.5; // insulation thickness | |
133 | Float_t dEnve = 0.1; // protective envelope thickness | |
b2ef5f06 | 134 | |
135 | ||
136 | // Mother volume and outer shielding: Pb | |
43d014f0 | 137 | par[0] = 0.; |
138 | par[1] = 360.; | |
139 | par[2] = 7.; | |
b2ef5f06 | 140 | |
50ad31cc | 141 | par[21] = (kZRear - kZAbsStart) / 2.; |
142 | par[22] = kRAbs; | |
143 | par[23] = kZAbsStart * TMath::Tan(kTheta1); | |
43d014f0 | 144 | |
50ad31cc | 145 | par[18] = par[21] - (kZNose - kZAbsStart); |
146 | par[19] = kRAbs; | |
147 | par[20] = kZNose * TMath::Tan(kTheta1); | |
43d014f0 | 148 | |
50ad31cc | 149 | par[15] = par[21] - (kZConeTPC - kZAbsStart); |
150 | par[16] = kRAbs; | |
151 | par[17] = par[20] - (par[15] - par[18]) * TMath::Tan(kTheta2); | |
43d014f0 | 152 | |
50ad31cc | 153 | par[12] = par[21] - (kZOpen - kZAbsStart); |
dbbe5bc1 | 154 | par[13] = kRAbs; |
50ad31cc | 155 | par[14] = par[17] - (par[12] - par[15]) * TMath::Tan(kAccMax); |
43d014f0 | 156 | |
50ad31cc | 157 | par[9] = par[21] - (kZRear - kDRear - kZAbsStart); |
158 | par[10] = kRAbs - (par[9] - par[12]) * TMath::Tan(kThetaOpen1) ; | |
159 | par[11] = par[14] - (par[9] - par[12]) * TMath::Tan(kAccMax); | |
43d014f0 | 160 | |
50ad31cc | 161 | par[6] = par[21] - (kZRear - kDRear - kZAbsStart); |
162 | par[7] = (kZRear - kDRear) * TMath::Tan(kAccMin); | |
163 | par[8] = par[14] - (par[6] - par[12]) * TMath::Tan(kAccMax); | |
43d014f0 | 164 | |
50ad31cc | 165 | par[3] = - par[21]; |
166 | par[4] = kZRear * TMath::Tan(kAccMin); | |
167 | par[5] = par[8] - (par[3] - par[6]) * TMath::Tan(kAccMax); | |
7c8f009e | 168 | gMC->Gsvolu("ABSS", "PCON", idtmed[kPb+40], par, 24); |
50ad31cc | 169 | |
170 | for (Int_t i = 22; i > 7; i -= 3) par[i] = 0; | |
171 | ||
b2ef5f06 | 172 | gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24); |
43d014f0 | 173 | gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY"); |
174 | ||
175 | // | |
176 | // Steel envelope | |
177 | // | |
50ad31cc | 178 | par[4] = par[5] - kDSteel; |
179 | par[7] = par[8] - kDSteel; | |
180 | par[10]= par[11] - kDSteel; | |
181 | par[13]= par[14] - kDSteel; | |
182 | par[16]= par[17] - kDSteel; | |
183 | par[19]= par[20] - kDSteel; | |
184 | par[22]= par[23] - kDSteel; | |
185 | ||
b2ef5f06 | 186 | gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24); |
43d014f0 | 187 | gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY"); |
188 | // | |
189 | // Polyethylene shield | |
190 | // | |
dbbe5bc1 | 191 | cpar[0] = (kZRear - kZConeTPC) / 2.; |
50ad31cc | 192 | cpar[1] = kZRear * TMath::Tan(kAccMax); |
dbbe5bc1 | 193 | cpar[2] = cpar[1] + kDPoly; |
50ad31cc | 194 | cpar[3] = kZConeTPC * TMath::Tan(kAccMax); |
dbbe5bc1 | 195 | cpar[4] = cpar[3] + kDPoly; |
50ad31cc | 196 | |
b2ef5f06 | 197 | gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5); |
50ad31cc | 198 | dz = - (kZRear - kZAbsStart) / 2. + cpar[0]; |
43d014f0 | 199 | gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
200 | ||
201 | // | |
202 | // Tungsten nose to protect TPC | |
203 | // | |
dbbe5bc1 | 204 | cpar[0] = (kZNose - kZAbsStart) / 2.; |
50ad31cc | 205 | cpar[1] = kZNose * TMath::Tan(kAccMax); |
206 | cpar[2] = kZNose * TMath::Tan(kTheta1) - kDSteel; | |
207 | cpar[3] = kZAbsStart * TMath::Tan(kAccMax); | |
208 | cpar[4] = kZAbsStart * TMath::Tan(kTheta1) - kDSteel; | |
209 | ||
84e91a25 | 210 | gMC->Gsvolu("ANOS", "CONE", idtmed[kNiCuW], cpar, 5); |
8f657ed5 | 211 | // |
50ad31cc | 212 | dz = (kZRear - kZAbsStart) / 2. - cpar[0]; |
43d014f0 | 213 | gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
8f657ed5 | 214 | // |
215 | // Tungsten inner shield | |
216 | // | |
50ad31cc | 217 | Float_t zW = kZTwoDeg + .1; |
218 | Float_t dZ = zW + (kZRear - kDRear - zW) / 2.; | |
43d014f0 | 219 | // |
b2ef5f06 | 220 | pcpar[0] = 0.; |
221 | pcpar[1] = 360.; | |
222 | pcpar[2] = 3.; | |
50ad31cc | 223 | pcpar[9] = - (zW - dZ); |
224 | pcpar[10] = kRAbs; | |
225 | pcpar[11] = zW * TMath::Tan(kAccMin); | |
226 | pcpar[6] = - (kZOpen - dZ); | |
dbbe5bc1 | 227 | pcpar[7] = kRAbs; |
228 | pcpar[8] = kZOpen * TMath::Tan(kAccMin); | |
50ad31cc | 229 | pcpar[3] = - (kZRear - kDRear - dZ); |
230 | pcpar[4] = kRAbs + (kZRear - kDRear - kZOpen) * TMath::Tan(kThetaOpen1); | |
231 | pcpar[5] = (kZRear - kDRear) * TMath::Tan(kAccMin); | |
b2ef5f06 | 232 | |
233 | gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12); | |
50ad31cc | 234 | dz = -(zW + kZRear - kDRear) / 2 + (kZAbsStart + kZRear) / 2.; |
43d014f0 | 235 | gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
8f657ed5 | 236 | // |
237 | // First part replaced by Carbon | |
238 | // | |
513b07d0 | 239 | cpar[0] = (200.-zW)/2.; |
50ad31cc | 240 | |
dbbe5bc1 | 241 | cpar[1] = kRAbs; |
50ad31cc | 242 | cpar[2] = 200. * TMath::Tan(kAccMin); |
dbbe5bc1 | 243 | cpar[3] = kRAbs; |
50ad31cc | 244 | cpar[4] = pcpar[11]; |
245 | ||
513b07d0 | 246 | gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5); |
50ad31cc | 247 | dz = - (zW - dZ+cpar[0]); |
513b07d0 | 248 | gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY"); |
8f657ed5 | 249 | |
8f657ed5 | 250 | /* |
ba47c054 | 251 | Float_t zWW = 383.5; |
dbbe5bc1 | 252 | cpar[0] = (kZRear-kDRear-zWW)/2.; |
253 | cpar[1] = kRAbs + (zWW-kZOpen) * TMath::Tan(kThetaOpen1); | |
254 | cpar[2] = zWW * TMath::Tan(kAccMin); | |
8f657ed5 | 255 | cpar[3] = pcpar[10]; |
256 | cpar[4] = pcpar[11]; | |
257 | gMC->Gsvolu("AWNO", "CONE", idtmed[kCu+40], cpar, 5); | |
258 | dz = zWW-dZ+cpar[0]; | |
259 | ||
260 | gMC->Gspos("AWNO", 1, "AWIN", 0., 0., dz, 0, "ONLY"); | |
261 | */ | |
262 | // | |
43d014f0 | 263 | // Inner tracking region |
264 | // | |
43d014f0 | 265 | // |
8f657ed5 | 266 | // |
43d014f0 | 267 | pcpar[0] = 0.; |
268 | pcpar[1] = 360.; | |
269 | pcpar[2] = 3.; | |
50ad31cc | 270 | pcpar[9] = (kZRear - kZAbsStart) / 2.; |
271 | pcpar[10] = kRAbs; | |
272 | pcpar[11] = kZAbsStart * TMath::Tan(kAccMax); | |
273 | pcpar[6] = pcpar[9] - (kZTwoDeg - kZAbsStart); | |
dbbe5bc1 | 274 | pcpar[7] = kRAbs; |
275 | pcpar[8] = kZTwoDeg * TMath::Tan(kAccMax); | |
50ad31cc | 276 | pcpar[3] = - pcpar[9]; |
277 | pcpar[4] = kZRear * TMath::Tan(kAccMin); | |
278 | pcpar[5] = kZRear * TMath::Tan(kAccMax); | |
381ec9af | 279 | gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12); |
43d014f0 | 280 | // |
281 | // special Pb medium for last 5 cm of Pb | |
50ad31cc | 282 | Float_t zr = kZRear - 2. - 0.001; |
b2ef5f06 | 283 | cpar[0] = 1.0; |
50ad31cc | 284 | cpar[3] = zr * TMath::Tan(kThetaR); |
285 | cpar[4] = zr * TMath::Tan(kAccMax); | |
286 | cpar[1] = cpar[3] + TMath::Tan(kThetaR) * 2; | |
287 | cpar[2] = cpar[4] + TMath::Tan(kAccMax) * 2; | |
288 | ||
381ec9af | 289 | gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5); |
50ad31cc | 290 | dz= - (kZRear - kZAbsStart) / 2. + cpar[0] - 0.001; |
43d014f0 | 291 | gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY"); |
43d014f0 | 292 | // |
293 | // concrete cone: concrete | |
294 | // | |
50ad31cc | 295 | pcpar[3] = pcpar[9] - (kZRear - kDRear - kZAbsStart); |
296 | pcpar[4] = (kZRear-kDRear) * TMath::Tan(kAccMin); | |
297 | pcpar[5] = (kZRear-kDRear) * TMath::Tan(kAccMax); | |
381ec9af | 298 | gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12); |
43d014f0 | 299 | gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY"); |
381ec9af | 300 | // |
301 | // Fe Cone | |
302 | // | |
50ad31cc | 303 | zr = kZRear - kDRear - dzFe; |
304 | ||
305 | cpar[0] = dzFe/2.; | |
306 | cpar[3] = zr * TMath::Tan(kAccMin); | |
307 | cpar[4] = zr * TMath::Tan(kAccMax); | |
308 | cpar[1] = cpar[3] + TMath::Tan(kAccMin) * dzFe; | |
309 | cpar[2] = cpar[4] + TMath::Tan(kAccMax) * dzFe; | |
310 | ||
381ec9af | 311 | gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5); |
312 | ||
50ad31cc | 313 | dz = - (kZRear - kZAbsStart) / 2. + kDRear + dzFe / 2.; |
381ec9af | 314 | |
315 | gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY"); | |
316 | ||
317 | ||
318 | // | |
43d014f0 | 319 | // |
320 | // carbon cone: carbon | |
321 | // | |
50ad31cc | 322 | pcpar[3] = pcpar[9] - (kZAbsCc - kZAbsStart); |
323 | pcpar[4] = kZAbsCc * TMath::Tan(kAccMin); | |
324 | pcpar[5] = kZAbsCc * TMath::Tan(kAccMax); | |
381ec9af | 325 | gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12); |
43d014f0 | 326 | gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 | 327 | // |
328 | // carbon cone outer region | |
329 | // | |
330 | cpar[0] = 10.; | |
dbbe5bc1 | 331 | cpar[3] = kRAbs; |
50ad31cc | 332 | cpar[4] = kZAbsStart * TMath::Tan(kAccMax); |
333 | cpar[1] = kRAbs; | |
334 | cpar[2] = cpar[4] + 2. * cpar[0] * TMath::Tan(kAccMax); | |
b2ef5f06 | 335 | |
381ec9af | 336 | gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5); |
50ad31cc | 337 | dz= (kZRear-kZAbsStart) / 2. - cpar[0]; |
b2ef5f06 | 338 | gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY"); |
43d014f0 | 339 | // |
340 | // inner W shield | |
50ad31cc | 341 | Float_t epsi = 0.; |
342 | Float_t repsi = 1.; | |
b2ef5f06 | 343 | |
50ad31cc | 344 | zr = kZRear - (kDRear - epsi); |
345 | cpar[0] = (kDRear - epsi) / 2.; | |
346 | cpar[3] = zr * TMath::Tan(kAccMin); | |
347 | cpar[4] = zr * TMath::Tan(kThetaR * repsi); | |
348 | cpar[1] = cpar[3] + TMath::Tan(kAccMin) * (kDRear - epsi); | |
349 | cpar[2] = cpar[4] + TMath::Tan(kThetaR * repsi) * (kDRear - epsi); | |
350 | ||
b14ff348 | 351 | gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][5]+40], cpar, 5); |
50ad31cc | 352 | dz= - (kZRear - kZAbsStart) / 2. + cpar[0]; |
43d014f0 | 353 | gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY"); |
354 | // | |
355 | // special W medium for last 5 cm of W | |
50ad31cc | 356 | zr = kZRear - 5; |
43d014f0 | 357 | cpar[0] = 2.5; |
50ad31cc | 358 | cpar[3] = zr * TMath::Tan(kAccMin); |
359 | cpar[4] = zr * TMath::Tan(kThetaR * repsi); | |
360 | cpar[1] = cpar[3] + TMath::Tan(kAccMin) * 5.; | |
361 | cpar[2] = cpar[4] + TMath::Tan(kThetaR*repsi) * 5.; | |
362 | ||
b14ff348 | 363 | gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][5]+20], cpar, 5); |
50ad31cc | 364 | dz = - (kDRear-epsi) / 2. + cpar[0]; |
43d014f0 | 365 | gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY"); |
366 | // | |
381ec9af | 367 | // Cu |
50ad31cc | 368 | Float_t drMin = TMath::Tan(kThetaR) * 5; |
369 | Float_t drMax = TMath::Tan(kAccMax) * 5; | |
381ec9af | 370 | gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0); |
50ad31cc | 371 | cpar[0] = 2.5; |
372 | ||
373 | for (Int_t i = 0; i < 3; i++) { | |
374 | zr = kZRear - kDRear + 5 + i * 10.; | |
375 | cpar[3] = zr * TMath::Tan(kThetaR); | |
376 | cpar[4] = zr * TMath::Tan(kAccMax); | |
377 | cpar[1] = cpar[3] + drMin; | |
378 | cpar[2] = cpar[4] + drMax; | |
379 | dz = - (kZRear - kZAbsStart) / 2. + cpar[0] + 5. + (2 - i)*10; | |
380 | gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5); | |
381 | } | |
382 | ||
43d014f0 | 383 | gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY"); |
50ad31cc | 384 | dz = - (kZRear - kZAbsStart) / 2. - kZAbsStart; |
43d014f0 | 385 | gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY"); |
386 | // | |
387 | // | |
388 | // vacuum system | |
389 | // | |
390 | // pipe and heating jackets | |
391 | // | |
392 | // | |
393 | // cylindrical piece | |
50ad31cc | 394 | tpar0[2] = (kZOpen-kZAbsStart)/2; |
395 | tpar0[0] = kRVacu; | |
396 | tpar0[1] = kRVacu + dTube + dInsu + dEnve; | |
b2ef5f06 | 397 | gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3); |
43d014f0 | 398 | // |
399 | // insulation | |
b2ef5f06 | 400 | |
50ad31cc | 401 | tpar[2] = tpar0[2]; |
402 | tpar[0] = kRVacu + dTube; | |
403 | tpar[1] = tpar[0] + dInsu; | |
b2ef5f06 | 404 | gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3); |
43d014f0 | 405 | gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 | 406 | // |
50ad31cc | 407 | dz = (kZRear - kZAbsStart) / 2. - tpar0[2]; |
43d014f0 | 408 | gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY"); |
43d014f0 | 409 | // |
410 | // conical piece | |
b2ef5f06 | 411 | |
50ad31cc | 412 | cpar0[0] = (kZRear - kDRear - kZOpen) / 2.; |
413 | cpar0[3] = kRVacu - 0.05; | |
414 | cpar0[4] = kRVacu + dTube + dInsu + dEnve; | |
415 | Float_t dR = 2. * cpar0[0] * TMath::Tan(kThetaOpen1); | |
416 | cpar0[1]=cpar0[3] + dR; | |
417 | cpar0[2]=cpar0[4] + dR; | |
b2ef5f06 | 418 | gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5); |
50ad31cc | 419 | dTube += 0.05; |
b2ef5f06 | 420 | |
43d014f0 | 421 | // |
422 | // insulation | |
50ad31cc | 423 | cpar[0] = cpar0[0]; |
424 | cpar[1] = cpar0[1] + dTube; | |
425 | cpar[2] = cpar0[1] + dTube + dInsu; | |
426 | cpar[3] = cpar0[3] + dTube; | |
427 | cpar[4] = cpar0[3] + dTube + dInsu; | |
428 | ||
b2ef5f06 | 429 | gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5); |
43d014f0 | 430 | gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY"); |
43d014f0 | 431 | |
50ad31cc | 432 | dz = - (kZRear - kZAbsStart) / 2. + cpar0[0] + kDRear; |
43d014f0 | 433 | gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY"); |
84e91a25 | 434 | //////////////////////////////////////////////////// |
435 | // // | |
436 | // Front Absorber Support Structure FASS // | |
437 | // // | |
438 | // Drawing ALIP2A__0035 // | |
439 | // Drawing ALIP2A__0089 // | |
440 | // Drawing ALIP2A__0090 // | |
441 | // Drawing ALIP2A__0109 // | |
442 | //////////////////////////////////////////////////// | |
443 | TGeoTranslation* vec0 = new TGeoTranslation(0., 0., 0.); | |
444 | ||
445 | TGeoVolumeAssembly* voFass = new TGeoVolumeAssembly("Fass"); | |
446 | const Float_t kDegRad = TMath::Pi() / 180.; | |
447 | const TGeoMedium* kMedSteel = gGeoManager->GetMedium("ABSO_ST_C0"); | |
448 | const TGeoMedium* kMedAlu = gGeoManager->GetMedium("ABSO_ALU_C0"); | |
449 | ||
450 | const Float_t kFassUBFlangeH = 380.; | |
451 | const Float_t kFassUBFlangeW = 77.; | |
452 | ||
453 | const Float_t kFassUMFlangeH = 380.; | |
454 | const Float_t kFassUMFlangeB = 246.; | |
455 | const Float_t kFassUMFlangeT = 10.; | |
456 | const Float_t kFassUMFalpha = - TMath::ATan((kFassUMFlangeB-kFassUMFlangeT)/ kFassUMFlangeH / 2.) / kDegRad; | |
457 | // Upper back flange | |
458 | // B1 | |
459 | // 380 x 77 | |
460 | TGeoVolume* voFassUBFlange = new TGeoVolume("FassUBFlange", new TGeoBBox(kFassUBFlangeW/2., | |
461 | kFassUBFlangeH/2., 3./2.), kMedSteel); | |
462 | voFass->AddNode(voFassUBFlange, 1, new TGeoTranslation(+1.5 + kFassUBFlangeW/2., | |
463 | 180. + kFassUBFlangeH/2., | |
464 | kFassUMFlangeB - 1.5)); | |
465 | voFass->AddNode(voFassUBFlange, 2, new TGeoTranslation(-1.5 - kFassUBFlangeW/2., | |
466 | 180. + kFassUBFlangeH/2., | |
467 | kFassUMFlangeB - 1.5)); | |
468 | ||
469 | ||
470 | // Lower back flange | |
471 | // Upper median flange | |
472 | // Drawing ALIP2A__0090 // | |
473 | // Drawing ALIP2A__0089 // | |
474 | // A2 | |
475 | ||
476 | TGeoVolume* voFassUMFlange = new TGeoVolume("FassUMFlange", | |
477 | new TGeoTrap(kFassUMFlangeH/2., kFassUMFalpha, | |
478 | 0., 1.5, | |
479 | kFassUMFlangeB/2., kFassUMFlangeB/2., | |
480 | 0., 1.5, | |
481 | kFassUMFlangeT/2., kFassUMFlangeT/2., | |
482 | 0.), kMedSteel); | |
483 | ||
484 | TGeoRotation* rotFass1 = new TGeoRotation("rotFass1", 180., 0., 90., 0., 90., 90.); | |
485 | voFass->AddNode(voFassUMFlange,1 , | |
486 | new TGeoCombiTrans(0., 180. + kFassUMFlangeH/2., -(kFassUMFlangeB+kFassUMFlangeT)/4. + kFassUMFlangeB, | |
487 | rotFass1)); | |
488 | ||
489 | ||
490 | // Lower median flange | |
491 | // Drawing ALIP2A__0090 // | |
492 | // Drawing ALIP2A__0089 // | |
493 | // A1 | |
494 | const Float_t kFassLMFlangeH = 242.; | |
495 | const Float_t kFassLMFlangeB = 246.; | |
496 | const Float_t kFassLMFlangeT = 43.; | |
497 | const Float_t kFassLMFalpha = - TMath::ATan((kFassLMFlangeB-kFassLMFlangeT)/ kFassLMFlangeH / 2.) / kDegRad; | |
498 | TGeoVolume* voFassLMFlange = new TGeoVolume("FassLMFlange", | |
499 | new TGeoTrap(kFassLMFlangeH/2., kFassLMFalpha, | |
500 | 0., 1.5, | |
501 | kFassLMFlangeB/2., kFassLMFlangeB/2., | |
502 | 0., 1.5, | |
503 | kFassLMFlangeT/2., kFassLMFlangeT/2., | |
504 | 0.), kMedSteel); | |
505 | TGeoRotation* rotFass2 = new TGeoRotation("rotFass2", 180., 0., 90., 0., 90., 270.); | |
506 | voFass->AddNode(voFassLMFlange, 1, | |
507 | new TGeoCombiTrans(0., -180. - kFassLMFlangeH/2., -(kFassLMFlangeB+kFassLMFlangeT)/4. + kFassLMFlangeB, | |
508 | rotFass2)); | |
509 | ||
510 | // Stiffeners | |
511 | // Support Plate | |
381ec9af | 512 | // |
84e91a25 | 513 | // Central cone |
514 | TGeoPgon* shFassCone = new TGeoPgon(22.5, 360., 8, 4); | |
515 | shFassCone->DefineSection(0, 0., 0., 180.); | |
516 | shFassCone->DefineSection(1, 3., 0., 180.); | |
517 | shFassCone->DefineSection(2, 3., 177., 180.); | |
518 | shFassCone->DefineSection(3, 246., 177., 180.); | |
519 | shFassCone->SetName("FassCone"); | |
381ec9af | 520 | |
84e91a25 | 521 | TGeoBBox* shFassWindow = new TGeoBBox( 190., 53., 28.); |
522 | shFassWindow->SetName("FassWindow"); | |
523 | TGeoTranslation* tFassWindow = new TGeoTranslation("tFassWindow", 0., 0., 78.); | |
524 | tFassWindow->RegisterYourself(); | |
381ec9af | 525 | |
5edc6a19 | 526 | TGeoTube* shFassApperture = new TGeoTube(0., 104., 3.01); |
84e91a25 | 527 | shFassApperture->SetName("FassApperture"); |
513b07d0 | 528 | |
84e91a25 | 529 | TGeoCompositeShape* shFassCentral = |
530 | new TGeoCompositeShape("shFassCentral", "FassCone-(FassWindow:tFassWindow+FassApperture)"); | |
531 | ||
532 | TGeoVolume* voFassCentral = new TGeoVolume("FassCentral", shFassCentral, kMedSteel); | |
533 | voFass->AddNode(voFassCentral, 1, vec0); | |
534 | ||
535 | // | |
536 | // Aluminum ring | |
537 | // | |
538 | TGeoVolume* voFassAlRing = new TGeoVolume("FassAlRing", new TGeoTube(100., 180., 10.), kMedAlu); | |
539 | voFass->AddNode(voFassAlRing, 1, new TGeoTranslation(0., 0., -11.)); | |
540 | TGeoRotation* rotxz = new TGeoRotation("rotxz", 90., 0., 90., 90., 180., 0.); | |
c5aa46e0 | 541 | gGeoManager->GetVolume("ALIC")->AddNode(voFass, 1, new TGeoCombiTrans(0., 0., -388.45 - 90., rotxz)); |
43d014f0 | 542 | } |
543 | ||
544 | //_____________________________________________________________________________ | |
545 | ||
546 | void AliABSOv0::Init() | |
547 | { | |
548 | // | |
549 | // Initialisation of the muon absorber after it has been built | |
550 | Int_t i; | |
551 | // | |
4951e003 | 552 | if(AliLog::GetGlobalDebugLevel()>0) { |
9e1a0ddb | 553 | printf("\n%s: ",ClassName()); |
554 | for(i=0;i<35;i++) printf("*"); | |
555 | printf(" ABSOv0_INIT "); | |
556 | for(i=0;i<35;i++) printf("*"); | |
557 | printf("\n%s: ",ClassName()); | |
558 | // | |
559 | for(i=0;i<80;i++) printf("*"); | |
560 | printf("\n"); | |
561 | } | |
43d014f0 | 562 | } |
563 | ||
564 | ||
565 | ||
566 | ||
567 | ||
568 | ||
569 | ||
570 | ||
571 | ||
572 |