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