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5aba2f60 | 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 | $Log$ | |
18 | */ | |
19 | ||
20 | // // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include "AliABSOvF.h" | |
25 | #include "AliRun.h" | |
26 | #include "AliConst.h" | |
27 | #include "AliALIFE.h" | |
28 | ||
29 | ClassImp(AliABSOvF) | |
30 | ||
31 | //_____________________________________________________________________________ | |
32 | AliABSOvF::AliABSOvF() | |
33 | { | |
34 | // | |
35 | // Default constructor | |
36 | // | |
37 | } | |
38 | ||
39 | //_____________________________________________________________________________ | |
40 | AliABSOvF::AliABSOvF(const char *name, const char *title) | |
41 | : AliABSO(name,title) | |
42 | { | |
43 | // | |
44 | // Standard constructor | |
45 | // | |
46 | SetMarkerColor(7); | |
47 | SetMarkerStyle(2); | |
48 | SetMarkerSize(0.4); | |
49 | } | |
50 | ||
51 | //_____________________________________________________________________________ | |
52 | void AliABSOvF::CreateGeometry() | |
53 | { | |
54 | // Create the absorber geometry | |
55 | // The inner part of the absorber (shield) is written also in ALIFE format | |
56 | // | |
57 | enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612, | |
58 | kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616, | |
59 | kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619}; | |
60 | ||
61 | Int_t *idtmed = fIdtmed->GetArray()-1599; | |
62 | ||
63 | Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3]; | |
64 | Float_t dz; | |
65 | ||
66 | AliALIFE* flukaGeom = new AliALIFE("frontshield.alife", "abso_vol.inp"); | |
67 | ||
68 | #include "ABSOSHILConst.h" | |
69 | #include "ABSOConst.h" | |
70 | Float_t dTube=0.1; // tube thickness | |
71 | Float_t dInsu=0.5; // insulation thickness | |
72 | Float_t dEnve=0.1; // protective envelope thickness | |
73 | Float_t dFree=0.5; // clearance thickness | |
74 | ||
75 | ||
76 | // Mother volume and outer shielding: Pb | |
77 | par[0] = 0.; | |
78 | par[1] = 360.; | |
79 | par[2] = 7.; | |
80 | ||
81 | par[3] = -(zRear-zAbsStart)/2.; | |
82 | par[4] = rAbs; | |
83 | par[5] = zAbsStart * TMath::Tan(theta1); | |
84 | ||
85 | par[6] = par[3]+(zNose-zAbsStart); | |
86 | par[7] = rAbs; | |
87 | par[8] = zNose * TMath::Tan(theta1); | |
88 | ||
89 | par[9] = par[3]+(zConeTPC-zAbsStart); | |
90 | par[10] = rAbs; | |
91 | par[11] = par[8] + (par[9] - par[6]) * TMath::Tan(theta2); | |
92 | ||
93 | par[12] = par[3]+(zOpen-zAbsStart); | |
94 | par[13] = rAbs; | |
95 | par[14] = par[11] + (par[12] - par[9]) * TMath::Tan(accMax); | |
96 | ||
97 | par[15] = par[3]+(zRear-dRear-zAbsStart); | |
98 | par[16] = rAbs + (par[15] - par[12]) * TMath::Tan(thetaOpen1) ; | |
99 | par[17] = par[14] + (par[15] - par[12]) * TMath::Tan(accMax); | |
100 | ||
101 | par[18] = par[3]+(zRear-dRear-zAbsStart); | |
102 | par[19] = (zRear-dRear) * TMath::Tan(accMin); | |
103 | par[20] = par[14] + (par[18] - par[12]) * TMath::Tan(accMax); | |
104 | ||
105 | par[21] = -par[3]; | |
106 | par[22] = zRear* TMath::Tan(accMin); | |
107 | par[23] = par[20] + (par[21] - par[18]) * TMath::Tan(accMax); | |
108 | gMC->Gsvolu("ABSS", "PCON", idtmed[kPb], par, 24); | |
109 | { // Begin local scope for i | |
110 | for (Int_t i=4; i<18; i+=3) par[i] = 0; | |
111 | } // End local scope for i | |
112 | gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24); | |
113 | gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY"); | |
114 | ||
115 | // | |
116 | // Steel envelope | |
117 | // | |
118 | par[4] = par[5] -dSteel; | |
119 | par[7] = par[8] -dSteel; | |
120 | par[10]= par[11]-dSteel; | |
121 | par[13]= par[14]-dSteel; | |
122 | par[16]= par[17]-dSteel; | |
123 | par[19]= par[20]-dSteel; | |
124 | par[22]= par[23]-dSteel; | |
125 | gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24); | |
126 | gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY"); | |
127 | // | |
128 | // Polyethylene shield | |
129 | // | |
130 | cpar[0] = (zRear - zConeTPC) / 2.; | |
131 | cpar[1] = zConeTPC * TMath::Tan(accMax); | |
132 | cpar[2] = cpar[1] + dPoly; | |
133 | cpar[3] = zRear * TMath::Tan(accMax); | |
134 | cpar[4] = cpar[3] + dPoly; | |
135 | gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5); | |
136 | dz = (zRear-zAbsStart)/2.-cpar[0]; | |
137 | gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY"); | |
138 | ||
139 | // | |
140 | // Tungsten nose to protect TPC | |
141 | // | |
142 | cpar[0] = (zNose - zAbsStart) / 2.; | |
143 | cpar[1] = zAbsStart * TMath::Tan(accMax); | |
144 | cpar[2] = zAbsStart * TMath::Tan(theta1)-dSteel; | |
145 | cpar[3] = zNose * TMath::Tan(accMax); | |
146 | cpar[4] = zNose * TMath::Tan(theta1)-dSteel; | |
147 | gMC->Gsvolu("ANOS", "CONE", idtmed[kW], cpar, 5); | |
148 | // | |
149 | dz = -(zRear-zAbsStart)/2.+cpar[0]; | |
150 | gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY"); | |
151 | // | |
152 | // Tungsten inner shield | |
153 | // | |
154 | Float_t zW=zTwoDeg+.1; | |
155 | Float_t dZ = zW+(zRear-dRear-zW)/2.; | |
156 | // | |
157 | pcpar[0] = 0.; | |
158 | pcpar[1] = 360.; | |
159 | pcpar[2] = 3.; | |
160 | pcpar[3] = zW-dZ; | |
161 | pcpar[4] = rAbs; | |
162 | pcpar[5] = zW * TMath::Tan(accMin); | |
163 | pcpar[6] = zOpen-dZ; | |
164 | pcpar[7] = rAbs; | |
165 | pcpar[8] = zOpen * TMath::Tan(accMin); | |
166 | pcpar[9] = zRear-dRear-dZ; | |
167 | pcpar[10] = rAbs+(zRear-dRear-zOpen) * TMath::Tan(thetaOpen1); | |
168 | pcpar[11] = (zRear-dRear) * TMath::Tan(accMin); | |
169 | ||
170 | gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12); | |
171 | // | |
172 | dz=(zW+zRear-dRear)/2-(zAbsStart+zRear)/2.; | |
173 | gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY"); | |
174 | ||
175 | // Inner tracking region | |
176 | // | |
177 | // mother volume: Pb | |
178 | // | |
179 | pcpar[0] = 0.; | |
180 | pcpar[1] = 360.; | |
181 | pcpar[2] = 3.; | |
182 | pcpar[3] = -(zRear-zAbsStart)/2.; | |
183 | pcpar[4] = rAbs; | |
184 | pcpar[5] = zAbsStart * TMath::Tan(accMax); | |
185 | pcpar[6] = pcpar[3]+(zTwoDeg-zAbsStart); | |
186 | pcpar[7] = rAbs; | |
187 | pcpar[8] = zTwoDeg * TMath::Tan(accMax); | |
188 | pcpar[9] = -pcpar[3]; | |
189 | pcpar[10] = zRear * TMath::Tan(accMin); | |
190 | pcpar[11] = zRear * TMath::Tan(accMax); | |
191 | gMC->Gsvolu("AITR", "PCON", idtmed[kPb], pcpar, 12); | |
192 | // | |
193 | // special Pb medium for last 5 cm of Pb | |
194 | Float_t zr=zRear-2.-0.001; | |
195 | cpar[0] = 1.0; | |
196 | cpar[1] = zr * TMath::Tan(thetaR); | |
197 | cpar[2] = zr * TMath::Tan(accMax); | |
198 | cpar[3] = cpar[1] + TMath::Tan(thetaR) * 2; | |
199 | cpar[4] = cpar[2] + TMath::Tan(accMax) * 2; | |
200 | gMC->Gsvolu("ARPB", "CONE", idtmed[kPb], cpar, 5); | |
201 | dz=(zRear-zAbsStart)/2.-cpar[0]-0.001; | |
202 | gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY"); | |
203 | // | |
204 | // concrete cone: concrete | |
205 | // | |
206 | pcpar[9] = pcpar[3]+(zRear-dRear-zAbsStart); | |
207 | pcpar[10] = (zRear-dRear) * TMath::Tan(accMin); | |
208 | pcpar[11] = (zRear-dRear) * TMath::Tan(accMax); | |
209 | gMC->Gsvolu("ACON", "PCON", idtmed[kConcrete+40], pcpar, 12); | |
210 | gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY"); | |
211 | // | |
212 | // carbon cone: carbon | |
213 | // | |
214 | pcpar[9] = pcpar[3]+(zAbsCc-zAbsStart); | |
215 | pcpar[10] = zAbsCc * TMath::Tan(accMin); | |
216 | pcpar[11] = zAbsCc * TMath::Tan(accMax); | |
217 | gMC->Gsvolu("ACAR", "PCON", idtmed[kC+40], pcpar, 12); | |
218 | gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY"); | |
219 | // | |
220 | // carbon cone outer region | |
221 | // | |
222 | cpar[0] = 10.; | |
223 | cpar[1] = rAbs; | |
224 | cpar[2] = zAbsStart* TMath::Tan(accMax); | |
225 | cpar[3] = rAbs; | |
226 | cpar[4] = cpar[2]+2. * cpar[0] * TMath::Tan(accMax); | |
227 | ||
228 | gMC->Gsvolu("ACAO", "CONE", idtmed[kC], cpar, 5); | |
229 | dz=-(zRear-zAbsStart)/2.+cpar[0]; | |
230 | gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY"); | |
231 | // | |
232 | // inner W shield | |
233 | Float_t epsi=0.; | |
234 | Float_t repsi=1.; | |
235 | ||
236 | zr=zRear-(dRear-epsi); | |
237 | cpar[0] = (dRear-epsi)/2.; | |
238 | cpar[1] = zr * TMath::Tan(accMin); | |
239 | cpar[2] = zr * TMath::Tan(thetaR*repsi); | |
240 | cpar[3] = cpar[1] + TMath::Tan(accMin) * (dRear-epsi); | |
241 | cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * (dRear-epsi); | |
242 | gMC->Gsvolu("ARW0", "CONE", idtmed[kNiCuW+40], cpar, 5); | |
243 | dz=(zRear-zAbsStart)/2.-cpar[0]; | |
244 | gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY"); | |
245 | // | |
246 | // special W medium for last 5 cm of W | |
247 | zr=zRear-5; | |
248 | cpar[0] = 2.5; | |
249 | cpar[1] = zr * TMath::Tan(accMin); | |
250 | cpar[2] = zr * TMath::Tan(thetaR*repsi); | |
251 | cpar[3] = cpar[1] + TMath::Tan(accMin) * 5.; | |
252 | cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * 5.; | |
253 | gMC->Gsvolu("ARW1", "CONE", idtmed[kNiCuW+20], cpar, 5); | |
254 | dz=(dRear-epsi)/2.-cpar[0]; | |
255 | gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY"); | |
256 | // | |
257 | // PolyEthylene Layers | |
258 | Float_t drMin=TMath::Tan(thetaR) * 5; | |
259 | Float_t drMax=TMath::Tan(accMax) * 5; | |
260 | gMC->Gsvolu("ARPE", "CONE", idtmed[kPolyCH2], cpar, 0); | |
261 | cpar[0]=2.5; | |
262 | { // Begin local scope for i | |
263 | for (Int_t i=0; i<3; i++) { | |
264 | zr=zRear-dRear+5+i*10.; | |
265 | cpar[1] = zr * TMath::Tan(thetaR); | |
266 | cpar[2] = zr * TMath::Tan(accMax); | |
267 | cpar[3] = cpar[1] + drMin; | |
268 | cpar[4] = cpar[2] + drMax; | |
269 | dz=(zRear-zAbsStart)/2.-cpar[0]-5.-(2-i)*10; | |
270 | gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5); | |
271 | } | |
272 | } // End local scope for i | |
273 | gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY"); | |
274 | dz = (zRear-zAbsStart)/2.+zAbsStart; | |
275 | gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY"); | |
276 | // | |
277 | // | |
278 | // vacuum system | |
279 | // | |
280 | // pipe and heating jackets | |
281 | // | |
282 | // | |
283 | // cylindrical piece | |
284 | tpar0[2]=(zOpen-zAbsStart)/2; | |
285 | tpar0[0]=rVacu; | |
286 | tpar0[1]=rAbs; | |
287 | gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3); | |
288 | // | |
289 | // insulation | |
290 | ||
291 | tpar[2]=tpar0[2]; | |
292 | tpar[0]=rVacu+dTube; | |
293 | tpar[1]=tpar[0]+dInsu; | |
294 | gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3); | |
295 | gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY"); | |
296 | // | |
297 | // clearance | |
298 | tpar[0]=tpar[1]+dEnve; | |
299 | tpar[1]=tpar[0]+dFree; | |
300 | gMC->Gsvolu("AP11", "TUBE", idtmed[kAir+40], tpar, 3); | |
301 | gMC->Gspos("AP11", 1, "AV11", 0., 0., 0., 0, "ONLY"); | |
302 | // | |
303 | dz=-(zRear-zAbsStart)/2.+tpar0[2]; | |
304 | gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY"); | |
305 | ||
306 | // | |
307 | // begin Fluka | |
308 | // Float_t zTwoDeg1=zTwoDeg-0.9/TMath::Tan(accMin); | |
309 | Float_t pos[3]={0.,0.,0.}; | |
310 | Float_t r[8]; | |
311 | r[0]=0.; | |
312 | r[1]=rVacu; | |
313 | r[2]=r[1]+0.1; | |
314 | r[3]=r[2]+0.5; | |
315 | r[4]=r[3]+0.1; | |
316 | r[5]=r[4]+0.5; | |
317 | ||
318 | char* materialsA[7] | |
319 | = {"VACUUM", "STEEL", "PIPEINSU", "STEEL", "AIR", "AIR"}; | |
320 | char* fieldsA[7] | |
321 | = {"MF", "MF", "MF", "MF", "MF", "MF"}; | |
322 | char* cutsA[7] | |
323 | = {"$SHH", "$SHH", "$SHH", "$SHH", "$SHH", "$SHH"}; | |
324 | char* materialsB[7] | |
325 | = {"VACUUM", "STEEL", "PIPEINSU", "STEEL", "AIR", "CARBON"}; | |
326 | char* fieldsB[7] | |
327 | = {"MF", "MF", "MF", "MF", "MF", "MF"}; | |
328 | char* cutsB[7] | |
329 | = {"$SHH", "$SHH", "$SHH", "$SHH", "$SHH", "$SHS"}; | |
330 | ||
331 | flukaGeom->Comment("Front Absorber Cylyndrical Section"); | |
332 | flukaGeom->SetDefaultVolume("*ACR02","*ACR02" ); | |
333 | flukaGeom->OnionCylinder(r, 6 , zAbsStart, zOpen, pos, materialsB, fieldsB, cutsB); | |
334 | flukaGeom->Cone(rAbs, rAbs, -rAbs, -rAbs, zTwoDeg, zOpen, pos, | |
0cc503f6 | 335 | "NIW", "MF", "$SHH"); |
5aba2f60 | 336 | // |
337 | // end Fluka | |
338 | ||
339 | // | |
340 | // conical piece | |
341 | ||
342 | cpar0[0]=(zRear-dRear-zOpen)/2; | |
343 | cpar0[1]=rVacu-0.05; | |
344 | cpar0[2]=rAbs; | |
345 | Float_t dR=2.*cpar0[0]*TMath::Tan(thetaOpen1); | |
346 | cpar0[3]=cpar0[1]+dR; | |
347 | cpar0[4]=cpar0[2]+dR; | |
348 | gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5); | |
349 | dTube+=0.05; | |
350 | ||
351 | // | |
352 | // insulation | |
353 | cpar[0]=cpar0[0]; | |
354 | cpar[1]=cpar0[1]+dTube; | |
355 | cpar[2]=cpar0[1]+dTube+dInsu; | |
356 | cpar[3]=cpar0[3]+dTube; | |
357 | cpar[4]=cpar0[3]+dTube+dInsu; | |
358 | gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5); | |
359 | gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY"); | |
360 | // | |
361 | // clearance | |
362 | cpar[1]=cpar0[1]+dTube+dInsu+dEnve; | |
363 | cpar[2]=rAbs; | |
364 | cpar[3]=cpar0[1]+dTube+dInsu+dEnve+dR; | |
365 | cpar[4]=rAbs+dR; | |
366 | ||
367 | gMC->Gsvolu("AP21", "CONE", idtmed[kAir+40], cpar, 5); | |
368 | gMC->Gspos("AP21", 1, "AV21", 0., 0., 0., 0, "ONLY"); | |
369 | ||
370 | dz=(zRear-zAbsStart)/2.-cpar0[0]-dRear; | |
371 | gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY"); | |
372 | // | |
373 | // begin Fluka | |
374 | // | |
375 | Float_t r1[7], r2[7]; | |
376 | r1[0]=0.; | |
377 | r2[0]=0.; | |
378 | r1[1]=rVacu-0.05; | |
379 | r2[1]=cpar0[3]; | |
380 | ||
381 | r1[2]=r1[1]+0.15; | |
382 | r1[3]=r1[2]+0.5; | |
383 | r1[4]=r1[3]+0.1; | |
384 | r1[5]=r1[4]+0.5; | |
385 | r1[6]=cpar0[2]; | |
386 | ||
387 | r2[2]=r2[1]+0.15; | |
388 | r2[3]=r2[2]+0.5; | |
389 | r2[4]=r2[3]+0.1; | |
390 | r2[5]=r2[4]+0.5; | |
391 | r2[6]=cpar0[4]; | |
392 | ||
393 | flukaGeom->Comment("Front Absorber Conical Section"); | |
394 | flukaGeom->OnionCone(r1, r2, 7 , zOpen, zRear-dRear, pos, materialsA, fieldsA, cutsA); | |
395 | flukaGeom->Cone(r1[6], r2[6], -1., -1., | |
0cc503f6 | 396 | zOpen, zRear-dRear, pos, "NIW", "MF", "$SHH"); |
5aba2f60 | 397 | |
398 | flukaGeom->Finish(); | |
399 | delete flukaGeom; | |
400 | ||
401 | // | |
402 | // end Fluka | |
403 | } | |
404 | ||
405 | //_____________________________________________________________________________ | |
406 | ||
407 | void AliABSOvF::Init() | |
408 | { | |
409 | // | |
410 | // Initialisation of the muon absorber after it has been built | |
411 | Int_t i; | |
412 | // | |
413 | printf("\n"); | |
414 | for(i=0;i<35;i++) printf("*"); | |
415 | printf(" ABSOvF_INIT "); | |
416 | for(i=0;i<35;i++) printf("*"); | |
417 | printf("\n"); | |
418 | // | |
419 | for(i=0;i<80;i++) printf("*"); | |
420 | printf("\n"); | |
421 | } | |
422 | ||
423 | ||
424 | ||
425 | ||
426 | ||
427 | ||
428 | ||
429 | ||
430 | ||
431 |