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 | $Log$ |
513b07d0 |
18 | Revision 1.10 2001/10/25 08:50:57 morsch |
19 | New beamshield geometry with increased tolerances and insulation thickness. |
20 | |
77976fd8 |
21 | Revision 1.9 2001/05/16 14:57:22 alibrary |
22 | New files for folders and Stack |
23 | |
9e1a0ddb |
24 | Revision 1.8 2001/01/12 13:16:09 morsch |
25 | Store absorber composition information in fMLayers and fZLayers |
26 | Rear 25 cm Fe + 35 cm Cu |
27 | |
381ec9af |
28 | Revision 1.7 2000/10/02 21:28:15 fca |
29 | Removal of useless dependecies via forward declarations |
30 | |
94de3818 |
31 | Revision 1.6 2000/06/15 09:40:31 morsch |
32 | Obsolete typedef keyword removed |
33 | |
56f14ac2 |
34 | Revision 1.5 2000/06/12 19:39:01 morsch |
35 | New structure of beam pipe and heating jacket. |
36 | |
b2ef5f06 |
37 | Revision 1.4 2000/04/03 08:13:40 fca |
38 | Introduce extra scope for non ANSI compliant C++ compilers |
39 | |
74c0d076 |
40 | Revision 1.3 2000/01/18 17:49:56 morsch |
41 | Serious overlap of ABSM with shield corrected |
42 | Small error in ARPB parameters corrected |
43 | |
85d164ab |
44 | Revision 1.2 2000/01/13 11:23:59 morsch |
45 | Last layer of Pb outer angle corrected |
46 | |
54fba644 |
47 | Revision 1.1 2000/01/12 15:39:30 morsch |
b2ef5f06 |
48 | Standard version of ABSO |
54fba644 |
49 | |
43d014f0 |
50 | */ |
51 | |
52 | /////////////////////////////////////////////////////////////////////////////// |
53 | // // |
54 | // Muon ABSOrber // |
55 | // This class contains the description of the muon absorber geometry // |
56 | // // |
57 | //Begin_Html |
58 | /* |
59 | <img src="picts/AliABSOClass.gif"> |
60 | </pre> |
61 | <br clear=left> |
62 | <font size=+2 color=red> |
63 | <p>The responsible person for this module is |
64 | <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>. |
65 | </font> |
66 | <pre> |
67 | */ |
68 | //End_Html |
69 | // // |
70 | // // |
71 | /////////////////////////////////////////////////////////////////////////////// |
72 | |
73 | #include "AliABSOv0.h" |
74 | #include "AliRun.h" |
94de3818 |
75 | #include "AliMC.h" |
43d014f0 |
76 | #include "AliConst.h" |
b2ef5f06 |
77 | |
43d014f0 |
78 | ClassImp(AliABSOv0) |
79 | |
80 | //_____________________________________________________________________________ |
81 | AliABSOv0::AliABSOv0() |
82 | { |
83 | // |
84 | // Default constructor |
85 | // |
86 | } |
87 | |
88 | //_____________________________________________________________________________ |
89 | AliABSOv0::AliABSOv0(const char *name, const char *title) |
90 | : AliABSO(name,title) |
91 | { |
92 | // |
93 | // Standard constructor |
94 | // |
95 | SetMarkerColor(7); |
96 | SetMarkerStyle(2); |
97 | SetMarkerSize(0.4); |
98 | } |
99 | |
100 | //_____________________________________________________________________________ |
101 | void AliABSOv0::CreateGeometry() |
102 | { |
b2ef5f06 |
103 | // |
104 | // Creation of the geometry of the muon absorber |
105 | // |
106 | //Begin_Html |
107 | /* |
108 | <img src="picts/AliABSOv0Tree.gif"> |
109 | */ |
110 | //End_Html |
111 | //Begin_Html |
112 | /* |
113 | <img src="picts/AliABSOv0.gif"> |
114 | */ |
115 | //End_Html |
116 | |
117 | // |
118 | // |
56f14ac2 |
119 | |
120 | enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612, |
77976fd8 |
121 | kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616, |
122 | kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619}; |
b2ef5f06 |
123 | |
124 | Int_t *idtmed = fIdtmed->GetArray()-1599; |
43d014f0 |
125 | |
b2ef5f06 |
126 | Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3]; |
127 | Float_t dz; |
513b07d0 |
128 | Int_t idrotm[1699]; |
b2ef5f06 |
129 | #include "ABSOSHILConst.h" |
130 | #include "ABSOConst.h" |
381ec9af |
131 | // |
132 | // Structure of Tracking Region |
133 | // |
134 | Float_t dzFe = 25.; |
135 | |
136 | // 3 < theta < 9 |
137 | fNLayers[0] = 5; |
138 | fMLayers[0][0] = kAir; fZLayers[0][0] = zAbsStart; |
139 | fMLayers[0][1] = kC; fZLayers[0][1] = zAbsCc; |
140 | fMLayers[0][2] = kConcrete; fZLayers[0][2] = zRear-dRear-dzFe; |
77976fd8 |
141 | fMLayers[0][3] = kSteel; fZLayers[0][3] = zRear-dRear; |
381ec9af |
142 | fMLayers[0][4] = kCu; fZLayers[0][4] = zRear; |
143 | // 2 < theta < 3 |
144 | fNLayers[1] = 5; |
145 | fMLayers[1][0] = fMLayers[0][0]; fZLayers[1][0] = fZLayers[0][0]; |
146 | fMLayers[1][1] = fMLayers[0][1]; fZLayers[1][1] = fZLayers[0][1]; |
147 | fMLayers[1][2] = fMLayers[0][2]; fZLayers[1][2] = fZLayers[0][2]; |
148 | fMLayers[1][3] = fMLayers[0][3]; fZLayers[1][3] = fZLayers[0][3]; |
149 | fMLayers[1][4] = kNiCuW; fZLayers[1][4] = fZLayers[0][4]; |
150 | // |
151 | |
b2ef5f06 |
152 | Float_t dTube=0.1; // tube thickness |
153 | Float_t dInsu=0.5; // insulation thickness |
154 | Float_t dEnve=0.1; // protective envelope thickness |
155 | Float_t dFree=0.5; // clearance thickness |
156 | |
157 | |
158 | // Mother volume and outer shielding: Pb |
43d014f0 |
159 | par[0] = 0.; |
160 | par[1] = 360.; |
161 | par[2] = 7.; |
b2ef5f06 |
162 | |
163 | par[3] = -(zRear-zAbsStart)/2.; |
164 | par[4] = rAbs; |
165 | par[5] = zAbsStart * TMath::Tan(theta1); |
43d014f0 |
166 | |
b2ef5f06 |
167 | par[6] = par[3]+(zNose-zAbsStart); |
168 | par[7] = rAbs; |
169 | par[8] = zNose * TMath::Tan(theta1); |
43d014f0 |
170 | |
b2ef5f06 |
171 | par[9] = par[3]+(zConeTPC-zAbsStart); |
172 | par[10] = rAbs; |
43d014f0 |
173 | par[11] = par[8] + (par[9] - par[6]) * TMath::Tan(theta2); |
174 | |
b2ef5f06 |
175 | par[12] = par[3]+(zOpen-zAbsStart); |
176 | par[13] = rAbs; |
177 | par[14] = par[11] + (par[12] - par[9]) * TMath::Tan(accMax); |
43d014f0 |
178 | |
b2ef5f06 |
179 | par[15] = par[3]+(zRear-dRear-zAbsStart); |
180 | par[16] = rAbs + (par[15] - par[12]) * TMath::Tan(thetaOpen1) ; |
181 | par[17] = par[14] + (par[15] - par[12]) * TMath::Tan(accMax); |
43d014f0 |
182 | |
b2ef5f06 |
183 | par[18] = par[3]+(zRear-dRear-zAbsStart); |
184 | par[19] = (zRear-dRear) * TMath::Tan(accMin); |
185 | par[20] = par[14] + (par[18] - par[12]) * TMath::Tan(accMax); |
43d014f0 |
186 | |
187 | par[21] = -par[3]; |
b2ef5f06 |
188 | par[22] = zRear* TMath::Tan(accMin); |
189 | par[23] = par[20] + (par[21] - par[18]) * TMath::Tan(accMax); |
190 | gMC->Gsvolu("ABSS", "PCON", idtmed[kPb], par, 24); |
74c0d076 |
191 | { // Begin local scope for i |
b2ef5f06 |
192 | for (Int_t i=4; i<18; i+=3) par[i] = 0; |
74c0d076 |
193 | } // End local scope for i |
b2ef5f06 |
194 | gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24); |
43d014f0 |
195 | gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY"); |
196 | |
197 | // |
198 | // Steel envelope |
199 | // |
b2ef5f06 |
200 | par[4] = par[5] -dSteel; |
201 | par[7] = par[8] -dSteel; |
202 | par[10]= par[11]-dSteel; |
203 | par[13]= par[14]-dSteel; |
204 | par[16]= par[17]-dSteel; |
205 | par[19]= par[20]-dSteel; |
206 | par[22]= par[23]-dSteel; |
207 | gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24); |
43d014f0 |
208 | gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY"); |
209 | // |
210 | // Polyethylene shield |
211 | // |
b2ef5f06 |
212 | cpar[0] = (zRear - zConeTPC) / 2.; |
213 | cpar[1] = zConeTPC * TMath::Tan(accMax); |
214 | cpar[2] = cpar[1] + dPoly; |
215 | cpar[3] = zRear * TMath::Tan(accMax); |
216 | cpar[4] = cpar[3] + dPoly; |
217 | gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5); |
218 | dz = (zRear-zAbsStart)/2.-cpar[0]; |
43d014f0 |
219 | gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
220 | |
221 | // |
222 | // Tungsten nose to protect TPC |
223 | // |
b2ef5f06 |
224 | cpar[0] = (zNose - zAbsStart) / 2.; |
225 | cpar[1] = zAbsStart * TMath::Tan(accMax); |
226 | cpar[2] = zAbsStart * TMath::Tan(theta1)-dSteel; |
227 | cpar[3] = zNose * TMath::Tan(accMax); |
228 | cpar[4] = zNose * TMath::Tan(theta1)-dSteel; |
229 | gMC->Gsvolu("ANOS", "CONE", idtmed[kW], cpar, 5); |
230 | // |
231 | dz = -(zRear-zAbsStart)/2.+cpar[0]; |
43d014f0 |
232 | gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
233 | // |
234 | // Tungsten inner shield |
235 | // |
513b07d0 |
236 | Float_t zW = zTwoDeg+.1; |
b2ef5f06 |
237 | Float_t dZ = zW+(zRear-dRear-zW)/2.; |
43d014f0 |
238 | // |
b2ef5f06 |
239 | pcpar[0] = 0.; |
240 | pcpar[1] = 360.; |
241 | pcpar[2] = 3.; |
242 | pcpar[3] = zW-dZ; |
243 | pcpar[4] = rAbs; |
244 | pcpar[5] = zW * TMath::Tan(accMin); |
245 | pcpar[6] = zOpen-dZ; |
246 | pcpar[7] = rAbs; |
247 | pcpar[8] = zOpen * TMath::Tan(accMin); |
248 | pcpar[9] = zRear-dRear-dZ; |
249 | pcpar[10] = rAbs+(zRear-dRear-zOpen) * TMath::Tan(thetaOpen1); |
250 | pcpar[11] = (zRear-dRear) * TMath::Tan(accMin); |
251 | |
252 | gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12); |
253 | // |
254 | dz=(zW+zRear-dRear)/2-(zAbsStart+zRear)/2.; |
43d014f0 |
255 | gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY"); |
513b07d0 |
256 | cpar[0] = (200.-zW)/2.; |
257 | cpar[1] = rAbs; |
258 | cpar[2] = pcpar[5]; |
259 | cpar[3] = rAbs; |
260 | cpar[4] = 200. * TMath::Tan(accMin); |
261 | gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5); |
262 | dz = zW-dZ+cpar[0]; |
263 | |
264 | gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY"); |
43d014f0 |
265 | // Inner tracking region |
266 | // |
381ec9af |
267 | // mother volume: Cu |
43d014f0 |
268 | // |
269 | pcpar[0] = 0.; |
270 | pcpar[1] = 360.; |
271 | pcpar[2] = 3.; |
b2ef5f06 |
272 | pcpar[3] = -(zRear-zAbsStart)/2.; |
273 | pcpar[4] = rAbs; |
274 | pcpar[5] = zAbsStart * TMath::Tan(accMax); |
275 | pcpar[6] = pcpar[3]+(zTwoDeg-zAbsStart); |
276 | pcpar[7] = rAbs; |
277 | pcpar[8] = zTwoDeg * TMath::Tan(accMax); |
85d164ab |
278 | pcpar[9] = -pcpar[3]; |
b2ef5f06 |
279 | pcpar[10] = zRear * TMath::Tan(accMin); |
280 | pcpar[11] = zRear * TMath::Tan(accMax); |
381ec9af |
281 | gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12); |
43d014f0 |
282 | // |
283 | // special Pb medium for last 5 cm of Pb |
b2ef5f06 |
284 | Float_t zr=zRear-2.-0.001; |
285 | cpar[0] = 1.0; |
286 | cpar[1] = zr * TMath::Tan(thetaR); |
287 | cpar[2] = zr * TMath::Tan(accMax); |
288 | cpar[3] = cpar[1] + TMath::Tan(thetaR) * 2; |
289 | cpar[4] = cpar[2] + TMath::Tan(accMax) * 2; |
381ec9af |
290 | gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5); |
b2ef5f06 |
291 | dz=(zRear-zAbsStart)/2.-cpar[0]-0.001; |
43d014f0 |
292 | gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY"); |
43d014f0 |
293 | // |
294 | // concrete cone: concrete |
295 | // |
b2ef5f06 |
296 | pcpar[9] = pcpar[3]+(zRear-dRear-zAbsStart); |
297 | pcpar[10] = (zRear-dRear) * TMath::Tan(accMin); |
298 | pcpar[11] = (zRear-dRear) * TMath::Tan(accMax); |
381ec9af |
299 | gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12); |
43d014f0 |
300 | gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY"); |
381ec9af |
301 | // |
302 | // Fe Cone |
303 | // |
304 | zr = zRear-dRear-dzFe; |
305 | cpar[0] = dzFe/2.; |
306 | cpar[1] = zr * TMath::Tan(accMin); |
307 | cpar[2] = zr * TMath::Tan(accMax); |
77976fd8 |
308 | cpar[3] = cpar[1] + TMath::Tan(accMin) * dzFe; |
381ec9af |
309 | cpar[4] = cpar[2] + TMath::Tan(accMax) * dzFe; |
310 | gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5); |
311 | |
312 | dz = (zRear-zAbsStart)/2.-dRear-dzFe/2.; |
313 | |
314 | gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY"); |
315 | |
316 | |
317 | // |
43d014f0 |
318 | // |
319 | // carbon cone: carbon |
320 | // |
b2ef5f06 |
321 | pcpar[9] = pcpar[3]+(zAbsCc-zAbsStart); |
322 | pcpar[10] = zAbsCc * TMath::Tan(accMin); |
323 | pcpar[11] = zAbsCc * TMath::Tan(accMax); |
381ec9af |
324 | gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12); |
43d014f0 |
325 | gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 |
326 | // |
327 | // carbon cone outer region |
328 | // |
329 | cpar[0] = 10.; |
330 | cpar[1] = rAbs; |
331 | cpar[2] = zAbsStart* TMath::Tan(accMax); |
332 | cpar[3] = rAbs; |
333 | cpar[4] = cpar[2]+2. * cpar[0] * TMath::Tan(accMax); |
334 | |
381ec9af |
335 | gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5); |
b2ef5f06 |
336 | dz=-(zRear-zAbsStart)/2.+cpar[0]; |
337 | gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY"); |
43d014f0 |
338 | // |
339 | // inner W shield |
b2ef5f06 |
340 | Float_t epsi=0.; |
341 | Float_t repsi=1.; |
342 | |
343 | zr=zRear-(dRear-epsi); |
344 | cpar[0] = (dRear-epsi)/2.; |
345 | cpar[1] = zr * TMath::Tan(accMin); |
346 | cpar[2] = zr * TMath::Tan(thetaR*repsi); |
347 | cpar[3] = cpar[1] + TMath::Tan(accMin) * (dRear-epsi); |
348 | cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * (dRear-epsi); |
381ec9af |
349 | gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][4]+40], cpar, 5); |
b2ef5f06 |
350 | dz=(zRear-zAbsStart)/2.-cpar[0]; |
43d014f0 |
351 | gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY"); |
352 | // |
353 | // special W medium for last 5 cm of W |
b2ef5f06 |
354 | zr=zRear-5; |
43d014f0 |
355 | cpar[0] = 2.5; |
b2ef5f06 |
356 | cpar[1] = zr * TMath::Tan(accMin); |
357 | cpar[2] = zr * TMath::Tan(thetaR*repsi); |
358 | cpar[3] = cpar[1] + TMath::Tan(accMin) * 5.; |
359 | cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * 5.; |
381ec9af |
360 | gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][4]+20], cpar, 5); |
b2ef5f06 |
361 | dz=(dRear-epsi)/2.-cpar[0]; |
43d014f0 |
362 | gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY"); |
363 | // |
381ec9af |
364 | // Cu |
b2ef5f06 |
365 | Float_t drMin=TMath::Tan(thetaR) * 5; |
366 | Float_t drMax=TMath::Tan(accMax) * 5; |
381ec9af |
367 | gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0); |
43d014f0 |
368 | cpar[0]=2.5; |
74c0d076 |
369 | { // Begin local scope for i |
b2ef5f06 |
370 | for (Int_t i=0; i<3; i++) { |
371 | zr=zRear-dRear+5+i*10.; |
372 | cpar[1] = zr * TMath::Tan(thetaR); |
373 | cpar[2] = zr * TMath::Tan(accMax); |
374 | cpar[3] = cpar[1] + drMin; |
375 | cpar[4] = cpar[2] + drMax; |
376 | dz=(zRear-zAbsStart)/2.-cpar[0]-5.-(2-i)*10; |
377 | gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5); |
378 | } |
74c0d076 |
379 | } // End local scope for i |
43d014f0 |
380 | gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 |
381 | dz = (zRear-zAbsStart)/2.+zAbsStart; |
43d014f0 |
382 | gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY"); |
383 | // |
384 | // |
385 | // vacuum system |
386 | // |
387 | // pipe and heating jackets |
388 | // |
389 | // |
390 | // cylindrical piece |
b2ef5f06 |
391 | tpar0[2]=(zOpen-zAbsStart)/2; |
392 | tpar0[0]=rVacu; |
77976fd8 |
393 | tpar0[1]=rVacu+dTube+dInsu+dEnve; |
b2ef5f06 |
394 | gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3); |
43d014f0 |
395 | // |
396 | // insulation |
b2ef5f06 |
397 | |
43d014f0 |
398 | tpar[2]=tpar0[2]; |
b2ef5f06 |
399 | tpar[0]=rVacu+dTube; |
400 | tpar[1]=tpar[0]+dInsu; |
401 | gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3); |
43d014f0 |
402 | gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY"); |
b2ef5f06 |
403 | // |
404 | dz=-(zRear-zAbsStart)/2.+tpar0[2]; |
43d014f0 |
405 | gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY"); |
43d014f0 |
406 | // |
407 | // conical piece |
b2ef5f06 |
408 | |
409 | cpar0[0]=(zRear-dRear-zOpen)/2; |
77976fd8 |
410 | cpar0[1]= rVacu-0.05; |
411 | cpar0[2]= rVacu+dTube+dInsu+dEnve; |
b2ef5f06 |
412 | Float_t dR=2.*cpar0[0]*TMath::Tan(thetaOpen1); |
413 | cpar0[3]=cpar0[1]+dR; |
414 | cpar0[4]=cpar0[2]+dR; |
415 | gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5); |
416 | dTube+=0.05; |
417 | |
43d014f0 |
418 | // |
419 | // insulation |
420 | cpar[0]=cpar0[0]; |
b2ef5f06 |
421 | cpar[1]=cpar0[1]+dTube; |
422 | cpar[2]=cpar0[1]+dTube+dInsu; |
423 | cpar[3]=cpar0[3]+dTube; |
424 | cpar[4]=cpar0[3]+dTube+dInsu; |
425 | gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5); |
43d014f0 |
426 | gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY"); |
43d014f0 |
427 | |
b2ef5f06 |
428 | dz=(zRear-zAbsStart)/2.-cpar0[0]-dRear; |
43d014f0 |
429 | gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY"); |
381ec9af |
430 | // |
431 | // Support cone |
432 | |
513b07d0 |
433 | par[0] = 22.5; |
434 | par[1] = 360.0; |
435 | par[2] = 8.0; |
436 | par[3] = 4.0; |
381ec9af |
437 | |
513b07d0 |
438 | par[4] = zRear; |
439 | par[5] = 100.; |
440 | par[6] = 170.; |
381ec9af |
441 | |
513b07d0 |
442 | par[7] = zRear+2.; |
443 | par[8] = 100.; |
444 | par[9] = 170.; |
381ec9af |
445 | |
513b07d0 |
446 | par[10] = zRear+2.; |
447 | par[11] = 168.; |
448 | par[12] = 170.; |
381ec9af |
449 | |
513b07d0 |
450 | par[13] = 600.; |
451 | par[14] = 168.; |
452 | par[15] = 170.; |
381ec9af |
453 | |
454 | |
513b07d0 |
455 | gMC->Gsvolu("ASSS", "PGON", idtmed[kSteel], par, 16); |
381ec9af |
456 | gMC->Gspos("ASSS", 1, "ALIC", 0., 0., 0., 0, "ONLY"); |
457 | |
513b07d0 |
458 | Float_t trap[11]; |
459 | trap[ 0] = (530.-170.)/2.; |
460 | trap[ 2] = 0.; |
461 | trap[ 3] = 2.; |
462 | trap[ 4] = (600.-(zRear+2.))/2.;; |
463 | trap[ 5] = trap[4]; |
464 | trap[ 6] = 0.; |
465 | trap[ 7] = 2.; |
466 | trap[ 8] = 5.; |
467 | trap[ 9] = 5.; |
468 | trap[10] = 0.; |
469 | trap[ 1] = -TMath::ATan((trap[4]-trap[8])/2./trap[0])*180./TMath::Pi(); |
470 | AliMatrix(idrotm[1600], 180., 0., 90., 0., 90., 90.); |
471 | AliMatrix(idrotm[1601], 180., 0., 90., 0., 90., 270.); |
472 | gMC->Gsvolu("ASST", "TRAP", idtmed[kSteel], trap, 11); |
473 | dz = (600.+zRear+2.)/2.+(trap[4]-trap[8])/2.; |
474 | Float_t dy = 170.+trap[0]; |
475 | |
476 | gMC->Gspos("ASST", 1, "ALIC", 0., dy, dz, idrotm[1600], "ONLY"); |
477 | gMC->Gspos("ASST", 2, "ALIC", 0., -dy, dz, idrotm[1601], "ONLY"); |
43d014f0 |
478 | } |
479 | |
480 | //_____________________________________________________________________________ |
481 | |
482 | void AliABSOv0::Init() |
483 | { |
484 | // |
485 | // Initialisation of the muon absorber after it has been built |
486 | Int_t i; |
487 | // |
9e1a0ddb |
488 | if(fDebug) { |
489 | printf("\n%s: ",ClassName()); |
490 | for(i=0;i<35;i++) printf("*"); |
491 | printf(" ABSOv0_INIT "); |
492 | for(i=0;i<35;i++) printf("*"); |
493 | printf("\n%s: ",ClassName()); |
494 | // |
495 | for(i=0;i<80;i++) printf("*"); |
496 | printf("\n"); |
497 | } |
43d014f0 |
498 | } |
499 | |
500 | |
501 | |
502 | |
503 | |
504 | |
505 | |
506 | |
507 | |
508 | |