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