1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.6 1999/09/29 09:24:30 fca
19 Introduction of the Copyright and cvs Log
23 ///////////////////////////////////////////////////////////////////////////////
25 // Muon Shield Class //
26 // This class contains a description of the muon shield //
30 <img src="picts/AliSHILClass.gif">
35 ///////////////////////////////////////////////////////////////////////////////
43 //_____________________________________________________________________________
47 // Default constructor for muon shield
51 //_____________________________________________________________________________
52 AliSHIL::AliSHIL(const char *name, const char *title)
53 : AliModule(name,title)
56 // Standard constructor for muon shield
63 //_____________________________________________________________________________
64 void AliSHIL::CreateGeometry()
67 // Build muon shield geometry
71 //_____________________________________________________________________________
72 void AliSHIL::CreateMaterials()
75 // Defines materials for the muon shield
77 Int_t ISXFLD = gAlice->Field()->Integ();
78 Float_t SXMGMX = gAlice->Field()->Max();
80 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
81 Float_t zsteel[4] = { 26.,24.,28.,14. };
82 Float_t wsteel[4] = { .715,.18,.1,.005 };
84 Float_t apbw[2] = { 207.2,183.85 };
85 Float_t zpbw[2] = { 82.,74. };
86 Float_t wpbw[2] = { .5,.5 };
88 Float_t aconc[10] = { 1.,12.01,15.994,22.99,24.305,26.98,
89 28.086,39.1,40.08,55.85 };
90 Float_t zconc[10] = { 1.,6.,8.,11.,12.,13.,14.,19.,20.,26. };
91 Float_t wconc[10] = { .01,.001,.529107,.016,.002,.033872,
92 .337021,.013,.044,.014 };
94 Float_t aniwcu[3] ={58.6934, 183.84, 63.546};
95 Float_t zniwcu[3] ={28., 74., 29};
96 Float_t wniwcu[3] ={0.015,0.95,0.035};
99 Float_t ains[3] ={28.0855, 15.9994};
100 Float_t zins[3] ={14., 8.};
101 Float_t wins[3] ={1., 2.};
103 Float_t epsil, stmin, tmaxfd, deemax, stemax;
108 // LEAD/TUNGSTEN MIXTURE
111 // --- Define the various materials for GEANT ---
113 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
114 AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
115 AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
118 AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
119 AliMaterial(30, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
120 AliMaterial(50, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
123 AliMaterial(12, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
124 AliMaterial(32, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
125 AliMaterial(52, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
128 AliMaterial(13, "LEAD$ ", 207.19, 82., 11.35, .56, 18.5);
129 AliMaterial(33, "LEAD$ ", 207.19, 82., 11.35, .56, 18.5);
130 AliMaterial(53, "LEAD$ ", 207.19, 82., 11.35, .56, 18.5);
133 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
134 AliMaterial(35, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
135 AliMaterial(55, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
138 AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
139 AliMaterial(36, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
140 AliMaterial(56, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
143 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
144 AliMixture(39, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
145 AliMixture(59, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
148 AliMixture(20, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
149 AliMixture(40, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
150 AliMixture(60, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
153 AliMixture(21, "Ni-W-Cu$", aniwcu, zniwcu, 18.78, 3, wniwcu);
154 AliMixture(41, "Ni-W-Cu$", aniwcu, zniwcu, 18.78, 3, wniwcu);
155 AliMixture(61, "Ni-W-Cu$", aniwcu, zniwcu, 18.78, 3, wniwcu);
158 AliMixture(17, "CONCRETE$", aconc, zconc, 2.35, 10, wconc);
159 AliMixture(37, "CONCRETE$", aconc, zconc, 2.35, 10, wconc);
160 AliMixture(57, "CONCRETE$", aconc, zconc, 2.35, 10, wconc);
163 AliMixture(14, "INSULATION$", ains, zins, 0.41, -2, wins);
164 AliMixture(34, "INSULATION$", ains, zins, 0.41, 2, wins);
165 AliMixture(54, "INSULATION$", ains, zins, 0.41, 2, wins);
168 // Defines tracking media parameters.
169 // Les valeurs sont commentees pour laisser le defaut
170 // a GEANT (version 3-21, page CONS200), f.m.
171 epsil = .001; // Tracking precision,
172 stemax = -1.; // Maximum displacement for multiple scat
173 tmaxfd = -20.; // Maximum angle due to field deflection
174 deemax = -.3; // Maximum fractional energy loss, DLS
179 AliMedium(9, "ALU_C0 ", 9, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
180 AliMedium(29, "ALU_C1 ", 29, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
181 AliMedium(49, "ALU_C2 ", 49, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
184 AliMedium(10, "FE_C0 ", 10, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
185 AliMedium(30, "FE_C1 ", 30, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
186 AliMedium(50, "FE_C2 ", 50, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
189 AliMedium(12, "W_C0 ", 12, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
190 AliMedium(32, "W_C1 ", 32, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
191 AliMedium(52, "W_C2 ", 52, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
194 AliMedium(13, "PB_C0 ", 13, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
195 AliMedium(33, "PB_C1 ", 33, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
196 AliMedium(53, "PB_C2 ", 53, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
199 AliMedium(14, "INS_C0 ", 14, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
200 AliMedium(34, "INS_C1 ", 34, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
201 AliMedium(54, "INS_C2 ", 54, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
204 AliMedium(15, "AIR_C0 ", 15, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
205 AliMedium(35, "AIR_C1 ", 35, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
206 AliMedium(55, "AIR_C2 ", 55, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
209 AliMedium(16, "VA_C0 ", 16, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
210 AliMedium(36, "VA_C1 ", 36, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
211 AliMedium(56, "VA_C2 ", 56, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
214 AliMedium(19, "ST_C0 ", 19, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
215 AliMedium(39, "ST_C1 ", 39, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
216 AliMedium(59, "ST_C3 ", 59, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
219 AliMedium(20, "PB/W0 ", 20, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
220 AliMedium(40, "PB/W1 ", 40, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
221 AliMedium(60, "PB/W3 ", 60, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
224 AliMedium(21, "Ni/W0 ", 21, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
225 AliMedium(41, "Ni/W1 ", 41, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
226 AliMedium(61, "Ni/W3 ", 61, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
229 AliMedium(17, "CC_C0 ", 17, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
230 AliMedium(37, "CC_C1 ", 37, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
231 AliMedium(57, "CC_C2 ", 57, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
235 //_____________________________________________________________________________
236 void AliSHIL::DrawModule ()
241 //_____________________________________________________________________________
245 // Initialise the muon shield after it has been built
250 for(i=0;i<35;i++) printf("*");
251 printf(" SHIL_INIT ");
252 for(i=0;i<35;i++) printf("*");
255 // Here the SHIL initialisation code (if any!)
256 for(i=0;i<80;i++) printf("*");