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e118b27e | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * SigmaEffect_thetadegrees * | |
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 purpeateose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // $Id$ | |
3d1463c8 | 17 | |
18 | //----------------------------------------------------------------------------- | |
e118b27e | 19 | // Class AliMUONCommonGeometryBuilder |
20 | // ---------------------------------- | |
21 | // Geometry construction common to all stations | |
22 | // (material definition). | |
23 | // separated from AliMUONGeometryBuilder | |
3d1463c8 | 24 | //----------------------------------------------------------------------------- |
e118b27e | 25 | |
26 | ||
f7a1cc68 | 27 | #include <TGeoGlobalMagField.h> |
e118b27e | 28 | #include <TVirtualMC.h> |
29 | ||
30 | #include "AliMUONCommonGeometryBuilder.h" | |
31 | #include "AliMUON.h" | |
32 | #include "AliMagF.h" | |
33 | #include "AliRun.h" | |
c4a97bcd | 34 | #include "AliLog.h" |
e118b27e | 35 | |
5398f946 | 36 | /// \cond CLASSIMP |
e118b27e | 37 | ClassImp(AliMUONCommonGeometryBuilder) |
5398f946 | 38 | /// \endcond |
e118b27e | 39 | |
40 | //______________________________________________________________________________//___________________________________________ | |
41 | AliMUONCommonGeometryBuilder::AliMUONCommonGeometryBuilder(AliMUON* muon) | |
8cf07955 | 42 | : AliMUONVGeometryBuilder(-1, 0), |
e118b27e | 43 | fMUON(muon) |
44 | { | |
5398f946 | 45 | /// Standard constructor |
e118b27e | 46 | } |
47 | ||
48 | //______________________________________________________________________________//___________________________________________ | |
49 | AliMUONCommonGeometryBuilder::AliMUONCommonGeometryBuilder() | |
50 | : AliMUONVGeometryBuilder(), | |
51 | fMUON(0) | |
52 | { | |
692de412 | 53 | /// Default constructor |
e118b27e | 54 | } |
55 | ||
e118b27e | 56 | //______________________________________________________________________________ |
57 | AliMUONCommonGeometryBuilder::~AliMUONCommonGeometryBuilder() | |
58 | { | |
692de412 | 59 | /// Destructor |
e118b27e | 60 | } |
61 | ||
e118b27e | 62 | // |
63 | // public functions | |
64 | // | |
65 | ||
66 | //_____________________________________________________________________________ | |
67 | void AliMUONCommonGeometryBuilder::CreateMaterials() | |
68 | { | |
692de412 | 69 | /// Definition of common materials |
e118b27e | 70 | |
71 | // | |
72 | // Ar-CO2 gas (80%+20%) | |
73 | Float_t ag1[3] = { 39.95,12.01,16. }; | |
74 | Float_t zg1[3] = { 18.,6.,8. }; | |
75 | Float_t wg1[3] = { .8,.0667,.13333 }; | |
76 | Float_t dg1 = .001821; | |
77 | // | |
78 | // Ar-buthane-freon gas -- trigger chambers | |
79 | Float_t atr1[4] = { 39.95,12.01,1.01,19. }; | |
80 | Float_t ztr1[4] = { 18.,6.,1.,9. }; | |
81 | Float_t wtr1[4] = { .56,.1262857,.2857143,.028 }; | |
82 | Float_t dtr1 = .002599; | |
83 | // | |
84 | // Ar-CO2 gas | |
85 | Float_t agas[3] = { 39.95,12.01,16. }; | |
86 | Float_t zgas[3] = { 18.,6.,8. }; | |
87 | Float_t wgas[3] = { .74,.086684,.173316 }; | |
88 | Float_t dgas = .0018327; | |
89 | // | |
90 | // Ar-Isobutane gas (80%+20%) -- tracking | |
91 | Float_t ag[3] = { 39.95,12.01,1.01 }; | |
92 | Float_t zg[3] = { 18.,6.,1. }; | |
93 | Float_t wg[3] = { .8,.057,.143 }; | |
94 | Float_t dg = .0019596; | |
95 | // | |
96 | // Ar-Isobutane-Forane-SF6 gas (49%+7%+40%+4%) -- trigger | |
97 | Float_t atrig[5] = { 39.95,12.01,1.01,19.,32.066 }; | |
98 | Float_t ztrig[5] = { 18.,6.,1.,9.,16. }; | |
99 | Float_t wtrig[5] = { .49,1.08,1.5,1.84,0.04 }; | |
100 | Float_t dtrig = .0031463; | |
101 | // | |
102 | // bakelite: C6 H6 O | |
103 | Float_t abak[3] = {12.01 , 1.01 , 16.}; | |
104 | Float_t zbak[3] = {6. , 1. , 8.}; | |
105 | Float_t wbak[3] = {6. , 6. , 1.}; | |
106 | Float_t dbak = 1.4; | |
107 | ||
f7a1cc68 | 108 | Int_t iSXFLD = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->PrecInteg(); |
109 | Float_t sXMGMX = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); | |
e118b27e | 110 | // |
111 | // --- Define the various materials for GEANT --- | |
4a9de4af | 112 | fMUON->AliMaterial(9, "ALUMINIUM0$", 26.98, 13., 2.7, 8.9, 37.2); |
113 | fMUON->AliMaterial(10, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2); | |
b60e0f5e | 114 | fMUON->AliMaterial(49, "Kapton$", 12.01,6,1.42,-28.6,999); // from DPG |
115 | fMUON->AliMaterial(42, "Copper$", 63.546,29.,8.96,-1.43,9.6); | |
f7d02212 | 116 | |
117 | //fMUON->AliMaterial(43, "FR4$", 17.749, 8.875, 1.7, -19.4, 999.); // from DPG | |
118 | Float_t aFR[4] = {16.0, 28.09, 12.011, 1.00794} ; | |
119 | Float_t zFR[4] = {8.0, 14.0, 6.0, 1.0} ; | |
120 | Float_t wFR[4] = {292.0, 68.0, 462.0, 736.0} ; | |
121 | Float_t dFR = 1.8 ; | |
122 | fMUON->AliMixture(43, "FR4$", aFR, zFR, dFR, -4, wFR); | |
123 | ||
b60e0f5e | 124 | fMUON->AliMaterial(44, "FrameEpoxy",12.24,6.0,1.85,-19.14,999);// use 16.75cm |
125 | ||
f7d02212 | 126 | |
e118b27e | 127 | // Air |
128 | Float_t aAir[4]={12.0107,14.0067,15.9994,39.948}; | |
129 | Float_t zAir[4]={6.,7.,8.,18.}; | |
130 | Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; | |
131 | Float_t dAir = 1.20479E-3; | |
132 | fMUON->AliMixture(15, "AIR$ ", aAir, zAir, dAir,4, wAir); | |
133 | // fMUON->AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); | |
134 | fMUON->AliMixture(19, "Bakelite$", abak, zbak, dbak, -3, wbak); | |
135 | fMUON->AliMixture(20, "ArC4H10 GAS$", ag, zg, dg, 3, wg); | |
136 | fMUON->AliMixture(21, "TRIG GAS$", atrig, ztrig, dtrig, -5, wtrig); | |
137 | fMUON->AliMixture(22, "ArCO2 80%$", ag1, zg1, dg1, 3, wg1); | |
138 | fMUON->AliMixture(23, "Ar-freon $", atr1, ztr1, dtr1, 4, wtr1); | |
139 | fMUON->AliMixture(24, "ArCO2 GAS$", agas, zgas, dgas, 3, wgas); | |
140 | ||
141 | // materials for slat: | |
142 | // Sensitive area: gas (already defined) | |
143 | // PCB: copper | |
144 | // insulating material: vetronite -> replacing by G10 Ch. Finck | |
145 | // spacer: noryl Ch. Finck | |
146 | // panel sandwich: carbon, nomex, carbon replacing rohacell by nomex Ch. Finck | |
147 | ||
148 | // G10: SiO2(60%) + C8H14O4(40%) | |
149 | Float_t aglass[5] = {12.01, 28.09, 16., 1.01, 16.}; | |
150 | Float_t zglass[5] = { 6., 14., 8., 1., 8.}; | |
151 | Float_t wglass[5] = { 0.22, 0.28, 0.32, 0.03, 0.15}; | |
152 | Float_t dglass = 1.7; | |
153 | ||
154 | // rohacell: C9 H13 N1 O2 | |
155 | Float_t arohac[4] = {12.01, 1.01, 14.010, 16.}; | |
156 | Float_t zrohac[4] = { 6., 1., 7., 8.}; | |
157 | Float_t wrohac[4] = { 9., 13., 1., 2.}; | |
158 | Float_t drohac = 0.03; | |
159 | ||
160 | // Nomex: C22 H10 N2 O5 | |
161 | Float_t aNomex[4] = {12.01, 1.01, 14.010, 16.}; | |
162 | Float_t zNomex[4] = { 6., 1., 7., 8.}; | |
163 | Float_t wNomex[4] = { 22., 10., 2., 5.}; | |
164 | Float_t dNomex = 0.024; //honey comb | |
165 | Float_t dNomex2 = 1.43; //bulk material | |
166 | ||
167 | ||
168 | // Noryl: C8 H8 O polyphenylene oxyde (di-methyl not sure) | |
169 | Float_t aNoryl[3] = {12.01, 1.01, 16.}; | |
170 | Float_t zNoryl[3] = { 6., 1., 8.}; | |
171 | Float_t wNoryl[3] = { 8., 8., 1.}; | |
172 | Float_t dNoryl = 1.06; | |
173 | ||
174 | fMUON->AliMaterial(31, "COPPER$", 63.54, 29., 8.96, 1.4, 0.); | |
175 | fMUON->AliMixture( 32, "G10$", aglass, zglass, dglass, -5, wglass); | |
176 | fMUON->AliMaterial(33, "Carbon$", 12.01, 6., 2.265, 18.8, 49.9); | |
177 | fMUON->AliMixture( 34, "Rohacell$", arohac, zrohac, drohac, -4, wrohac); | |
178 | fMUON->AliMixture( 35, "Nomex$", aNomex, zNomex, dNomex, -4, wNomex); | |
179 | fMUON->AliMixture( 36, "Noryl$", aNoryl, zNoryl, dNoryl, -3, wNoryl); | |
180 | fMUON->AliMixture( 37, "Nomex_bulk$",aNomex, zNomex, dNomex2, -4, wNomex); | |
181 | ||
182 | Float_t epsil = .001; // Tracking precision, | |
183 | Float_t stemax = -1.; // Maximum displacement for multiple scat | |
184 | Float_t tmaxfd = -20.; // Maximum angle due to field deflection | |
185 | Float_t deemax = -.3; // Maximum fractional energy loss, DLS | |
186 | Float_t stmin = -.8; | |
187 | Float_t maxDestepAlu = fMUON->GetMaxDestepAlu(); | |
188 | Float_t maxDestepGas = fMUON->GetMaxDestepGas(); | |
189 | Float_t maxStepAlu = fMUON->GetMaxStepAlu(); | |
190 | Float_t maxStepGas = fMUON->GetMaxStepGas(); | |
191 | ||
192 | // | |
193 | // Air | |
194 | fMUON->AliMedium(1, "AIR_CH_US ", 15, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin); | |
195 | ||
196 | // | |
197 | // Aluminum | |
4a9de4af | 198 | fMUON->AliMedium(4, "ALU_CH_US0 ", 9, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, |
e118b27e | 199 | maxDestepAlu, epsil, stmin); |
4a9de4af | 200 | fMUON->AliMedium(5, "ALU_CH_US1 ", 10, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, |
e118b27e | 201 | maxDestepAlu, epsil, stmin); |
202 | // | |
203 | // Ar-isoC4H10 gas | |
204 | fMUON->AliMedium(6, "AR_CH_US ", 20, 1, iSXFLD, sXMGMX, tmaxfd, maxStepGas, | |
205 | maxDestepGas, epsil, stmin); | |
206 | // | |
207 | // Ar-Isobuthane-Forane-SF6 gas | |
208 | fMUON->AliMedium(7, "GAS_CH_TRIGGER ", 21, 1, iSXFLD, sXMGMX, tmaxfd, stemax, deemax, epsil, stmin); | |
209 | ||
210 | fMUON->AliMedium(8, "BAKE_CH_TRIGGER ", 19, 0, iSXFLD, sXMGMX, tmaxfd, maxStepAlu, | |
211 | maxDestepAlu, epsil, stmin); | |
212 | // | |
213 | // slat medium | |
214 | fMUON->AliMedium(9, "ARG_CO2 ", 22, 1, iSXFLD, sXMGMX, tmaxfd, maxStepGas, | |
215 | maxDestepAlu, epsil, stmin); | |
216 | // | |
217 | // tracking media for slats: check the parameters!! | |
218 | fMUON->AliMedium(11, "PCB_COPPER ", 31, 0, iSXFLD, sXMGMX, tmaxfd, | |
219 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
220 | fMUON->AliMedium(12, "G10 ", 32, 0, iSXFLD, sXMGMX, tmaxfd, | |
221 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
222 | fMUON->AliMedium(13, "CARBON ", 33, 0, iSXFLD, sXMGMX, tmaxfd, | |
223 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
224 | fMUON->AliMedium(14, "Rohacell ", 34, 0, iSXFLD, sXMGMX, tmaxfd, | |
225 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
226 | fMUON->AliMedium(15, "Nomex ", 35, 0, iSXFLD, sXMGMX, tmaxfd, | |
227 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
228 | fMUON->AliMedium(16, "Noryl ", 36, 0, iSXFLD, sXMGMX, tmaxfd, | |
229 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
230 | fMUON->AliMedium(17, "Nomex bulk ", 37, 0, iSXFLD, sXMGMX, tmaxfd, | |
231 | maxStepAlu, maxDestepAlu, epsil, stmin); | |
b60e0f5e | 232 | |
233 | // for station 2 only | |
234 | // was med: 4 mat: 9 | |
235 | fMUON->AliMedium(22, "COPPER_II ", 42, 0, iSXFLD, sXMGMX, | |
236 | tmaxfd, maxStepAlu, maxDestepAlu, epsil, stmin); | |
237 | // was med: 10 mat: 30 | |
238 | fMUON->AliMedium(23, "FR4_CH ", 43, 0, iSXFLD, sXMGMX, | |
239 | 10.0, 0.01, 0.1, 0.003, 0.003); | |
240 | fMUON->AliMedium(24, "FrameCH$", 44, 1, iSXFLD, sXMGMX, | |
241 | 10.0, 0.001, 0.001, 0.001, 0.001); | |
242 | fMUON->AliMedium(29, "Kapton ", 49, 0, iSXFLD, sXMGMX, | |
243 | 10.0, 0.01, 1.0, 0.003, 0.003); | |
244 | // was med: 18 mat: 34 | |
e118b27e | 245 | } |
246 | ||
247 |