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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 Shield Class //
21// This class contains a description of the muon shield //
22// //
23//Begin_Html
24/*
25<img src="picts/AliSHILClass.gif">
26*/
27//End_Html
28// //
29// //
30///////////////////////////////////////////////////////////////////////////////
31
32#include <TGeoGlobalMagField.h>
33
34#include "AliSHIL.h"
35#include "AliRun.h"
36#include "AliMagF.h"
37#include "AliConst.h"
38#include "AliLog.h"
39
40ClassImp(AliSHIL)
41
42//_____________________________________________________________________________
43AliSHIL::AliSHIL()
44{
45 //
46 // Default constructor for muon shield
47 //
48}
49
50//_____________________________________________________________________________
51AliSHIL::AliSHIL(const char *name, const char *title)
52 : AliModule(name,title)
53{
54 //
55 // Standard constructor for muon shield
56 //
57 //PH SetMarkerColor(7);
58 //PH SetMarkerStyle(2);
59 //PH SetMarkerSize(0.4);
60}
61
62//_____________________________________________________________________________
63void AliSHIL::CreateGeometry()
64{
65 //
66 // Build muon shield geometry
67 //
68}
69
70//_____________________________________________________________________________
71void AliSHIL::CreateMaterials()
72{
73 //
74 // Defines materials for the muon shield
75 //
76 Int_t isxfld1 = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
77 Int_t isxfld2 = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->PrecInteg();
78
79 Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
80// Steel
81 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
82 Float_t zsteel[4] = { 26.,24.,28.,14. };
83 Float_t wsteel[4] = { .715,.18,.1,.005 };
84// PbW
85 Float_t apbw[2] = { 207.2,183.85 };
86 Float_t zpbw[2] = { 82.,74. };
87 Float_t wpbw[2] = { .5,.5 };
88// Concrete
89 Float_t aconc[10] = { 1.,12.01,15.994,22.99,24.305,26.98,
90 28.086,39.1,40.08,55.85 };
91 Float_t zconc[10] = { 1.,6.,8.,11.,12.,13.,14.,19.,20.,26. };
92 Float_t wconc[10] = { .01,.001,.529107,.016,.002,.033872,
93 .337021,.013,.044,.014 };
94// Ni-Cu-W alloy
95 Float_t aniwcu[3] ={58.6934, 183.84, 63.546};
96 Float_t zniwcu[3] ={28., 74., 29.};
97 Float_t wniwcu[3] ={ 0.015, 0.95, 0.035};
98//
99// Insulation powder
100// Si O Ti Al
101 Float_t ains[4] ={28.0855, 15.9994, 47.867, 26.982};
102 Float_t zins[4] ={14., 8. , 22. , 13. };
103 Float_t wins[4] ={ 0.3019, 0.4887, 0.1914, 0.018};
104//
105// Air
106//
107 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
108 Float_t zAir[4]={6.,7.,8.,18.};
109 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
110 Float_t dAir = 1.20479E-3;
111 Float_t dAir1 = 1.20479E-10;
112//
113// Cast iron
114//
115 Float_t acasti[4] = {55.847,12.011,28.085,54.938};
116 Float_t zcasti[4] = {26.,6.,14.,25.};
117 Float_t wcasti[4] = {0.929,0.035,0.031,0.005};
118
119 Float_t epsil, stmin, tmaxfd, deemax, stemax;
120
121 // STEEL
122
123
124 // LEAD/TUNGSTEN MIXTURE
125
126
127 // --- Define the various materials for GEANT ---
128 // Aluminum
129 AliMaterial(9, "ALU1 ", 26.98, 13., 2.7, 8.9, 37.2);
130 AliMaterial(29, "ALU2 ", 26.98, 13., 2.7, 8.9, 37.2);
131 AliMaterial(49, "ALU3 ", 26.98, 13., 2.7, 8.9, 37.2);
132
133 // Iron
134 AliMaterial(10, "IRON1 ", 55.85, 26., 7.87, 1.76, 17.1);
135 AliMaterial(30, "IRON2 ", 55.85, 26., 7.87, 1.76, 17.1);
136 AliMaterial(50, "IRON3 ", 55.85, 26., 7.87, 1.76, 17.1);
137
138 //
139 // Copper
140 AliMaterial(11, "COPPER1 ", 63.55, 29., 8.96, 1.43, 15.1);
141 AliMaterial(31, "COPPER2 ", 63.55, 29., 8.96, 1.43, 15.1);
142 AliMaterial(51, "COPPER3 ", 63.55, 29., 8.96, 1.43, 15.1);
143
144 // Tungsten
145 AliMaterial(12, "TUNGSTEN1 ", 183.85, 74., 19.3, .35, 10.3);
146 AliMaterial(32, "TUNGSTEN2 ", 183.85, 74., 19.3, .35, 10.3);
147 AliMaterial(52, "TUNGSTEN3 ", 183.85, 74., 19.3, .35, 10.3);
148
149 // Lead
150 AliMaterial(13, "LEAD1 ", 207.19, 82., 11.35, .56, 18.5);
151 AliMaterial(33, "LEAD2 ", 207.19, 82., 11.35, .56, 18.5);
152 AliMaterial(53, "LEAD3 ", 207.19, 82., 11.35, .56, 18.5);
153
154 // Air
155 AliMixture(15, "AIR1 ", aAir, zAir, dAir, 4, wAir);
156 AliMixture(35, "AIR2 ", aAir, zAir, dAir, 4, wAir);
157 AliMixture(55, "AIR3 ", aAir, zAir, dAir, 4, wAir);
158 AliMixture(75, "AIR_MUON ", aAir, zAir, dAir, 4, wAir);
159
160 // Vacuum
161 AliMixture(16, "VACUUM1 ", aAir, zAir, dAir1, 4, wAir);
162 AliMixture(36, "VACUUM2 ", aAir, zAir, dAir1, 4, wAir);
163 AliMixture(56, "VACUUM3 ", aAir, zAir, dAir1, 4, wAir);
164
165 // Stainless Steel
166 AliMixture(19, "STAINLESS STEEL1", asteel, zsteel, 7.88, 4, wsteel);
167 AliMixture(39, "STAINLESS STEEL2", asteel, zsteel, 7.88, 4, wsteel);
168 AliMixture(59, "STAINLESS STEEL3", asteel, zsteel, 7.88, 4, wsteel);
169
170 // Lead/Tungsten
171 AliMixture(20, "LEAD/TUNGSTEN1", apbw, zpbw, 15.325, 2, wpbw);
172 AliMixture(40, "LEAD/TUNGSTEN2", apbw, zpbw, 15.325, 2, wpbw);
173 AliMixture(60, "LEAD/TUNGSTEN3", apbw, zpbw, 15.325, 2, wpbw);
174
175 // Ni-W-Cu
176 AliMixture(21, "Ni-W-Cu1", aniwcu, zniwcu, 18.78, 3, wniwcu);
177 AliMixture(41, "Ni-W-Cu2", aniwcu, zniwcu, 18.78, 3, wniwcu);
178 AliMixture(61, "Ni-W-Cu3", aniwcu, zniwcu, 18.78, 3, wniwcu);
179
180 // Concrete
181 AliMixture(17, "CONCRETE1", aconc, zconc, 2.35, 10, wconc);
182 AliMixture(37, "CONCRETE2", aconc, zconc, 2.35, 10, wconc);
183 AliMixture(57, "CONCRETE3", aconc, zconc, 2.35, 10, wconc);
184
185 // Insulation powder
186 AliMixture(14, "INSULATION1", ains, zins, 0.41, 4, wins);
187 AliMixture(34, "INSULATION2", ains, zins, 0.41, 4, wins);
188 AliMixture(54, "INSULATION3", ains, zins, 0.41, 4, wins);
189
190 // Cast iron
191 AliMixture(18, "CAST IRON1", acasti, zcasti, 7.2, 4, wcasti);
192 AliMixture(38, "CAST IRON2", acasti, zcasti, 7.2, 4, wcasti);
193 AliMixture(58, "CAST IRON3", acasti, zcasti, 7.2, 4, wcasti);
194
195 // ****************
196 // Defines tracking media parameters.
197 // Les valeurs sont commentees pour laisser le defaut
198 // a GEANT (version 3-21, page CONS200), f.m.
199 epsil = .001; // Tracking precision,
200 stemax = -1.; // Maximum displacement for multiple scat
201 tmaxfd = -20.; // Maximum angle due to field deflection
202 deemax = -.3; // Maximum fractional energy loss, DLS
203 stmin = -.8;
204 // ***************
205
206 // Aluminum
207 AliMedium(9, "ALU_C0 ", 9, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
208 AliMedium(29, "ALU_C1 ", 29, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
209 AliMedium(49, "ALU_C2 ", 49, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
210
211 // Iron
212 AliMedium(10, "FE_C0 ", 10, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
213 AliMedium(30, "FE_C1 ", 30, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
214 AliMedium(50, "FE_C2 ", 50, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
215
216 // Copper
217 AliMedium(11, "Cu_C0 ", 11, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
218 AliMedium(31, "Cu_C1 ", 31, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
219 AliMedium(51, "Cu_C2 ", 51, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
220
221 // Tungsten
222 AliMedium(12, "W_C0 ", 12, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
223 AliMedium(32, "W_C1 ", 32, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
224 AliMedium(52, "W_C2 ", 52, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
225
226 // Lead
227 AliMedium(13, "PB_C0 ", 13, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
228 AliMedium(33, "PB_C1 ", 33, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
229 AliMedium(53, "PB_C2 ", 53, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
230
231 // Insulation Powder
232 AliMedium(14, "INS_C0 ", 14, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
233 AliMedium(34, "INS_C1 ", 34, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
234 AliMedium(54, "INS_C2 ", 54, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
235
236 // Air
237 AliMedium(15, "AIR_C0 ", 15, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
238 AliMedium(35, "AIR_C1 ", 35, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
239 AliMedium(55, "AIR_C2 ", 55, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
240 AliMedium(75, "AIR_MUON ", 75, 0, isxfld2, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
241
242 // Vacuum
243 AliMedium(16, "VA_C0 ", 16, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
244 AliMedium(36, "VA_C1 ", 36, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
245 AliMedium(56, "VA_C2 ", 56, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
246
247 // Steel
248 AliMedium(19, "ST_C0 ", 19, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
249 AliMedium(39, "ST_C1 ", 39, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
250 AliMedium(59, "ST_C3 ", 59, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
251
252 // Lead/Tungsten
253 AliMedium(20, "PB/W0 ", 20, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
254 AliMedium(40, "PB/W1 ", 40, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
255 AliMedium(60, "PB/W3 ", 60, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
256
257 // Ni/Tungsten
258 AliMedium(21, "Ni/W0 ", 21, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
259 AliMedium(41, "Ni/W1 ", 41, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
260 AliMedium(61, "Ni/W3 ", 61, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
261
262// Concrete
263 AliMedium(17, "CC_C0 ", 17, 0, 0, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
264 AliMedium(37, "CC_C1 ", 37, 0, 0, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
265 AliMedium(57, "CC_C2 ", 57, 0, 0, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
266
267 // Cast iron
268 AliMedium(18, "CAST_IRON0 ", 18, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
269 AliMedium(38, "CAST_IRON1 ", 38, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
270 AliMedium(58, "CAST_IRON2 ", 58, 0, isxfld1, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
271
272}
273
274//_____________________________________________________________________________
275void AliSHIL::Init()
276{
277 //
278 // Initialise the muon shield after it has been built
279 //
280 Int_t i;
281 //
282 if(AliLog::GetGlobalDebugLevel()>0) {
283 printf("\n%s: ",ClassName());
284 for(i=0;i<35;i++) printf("*");
285 printf(" SHIL_INIT ");
286 for(i=0;i<35;i++) printf("*");
287 printf("\n%s: ",ClassName());
288 //
289 // Here the SHIL initialisation code (if any!)
290 for(i=0;i<80;i++) printf("*");
291 printf("\n");
292 }
293}
294
295