]>
Commit | Line | Data |
---|---|---|
4c039060 | 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 | ||
d15a28e7 | 16 | //_________________________________________________________________________ |
17 | // Base Class of PHOS. | |
18 | // Only creates the materials | |
19 | //*-- Author : Laurent Aphecetche SUBATECH | |
20 | ////////////////////////////////////////////////////////////////////////////// | |
e84be1eb | 21 | |
fe4da5cc | 22 | // --- ROOT system --- |
fe4da5cc | 23 | |
24 | // --- Standard library --- | |
fe4da5cc | 25 | |
d15a28e7 | 26 | // --- AliRoot header files --- |
27 | ||
fe4da5cc | 28 | #include "AliPHOS.h" |
d15a28e7 | 29 | #include "AliMC.h" |
9f616d61 | 30 | //#include "TGeant3.h" |
fe4da5cc | 31 | #include "AliRun.h" |
fe4da5cc | 32 | |
fe4da5cc | 33 | ClassImp(AliPHOS) |
34 | ||
d15a28e7 | 35 | //____________________________________________________________________________ |
36 | AliPHOS::AliPHOS(const char* name, const char* title) | |
37 | : AliDetector(name,title) | |
fe4da5cc | 38 | { |
fe4da5cc | 39 | } |
40 | ||
d15a28e7 | 41 | //____________________________________________________________________________ |
42 | AliPHOS::AliPHOS() : AliDetector() | |
fe4da5cc | 43 | { |
fe4da5cc | 44 | } |
fe4da5cc | 45 | |
d15a28e7 | 46 | //____________________________________________________________________________ |
47 | AliPHOS::~AliPHOS() | |
fe4da5cc | 48 | { |
d15a28e7 | 49 | delete fHits ; |
50 | delete fDigits ; | |
fe4da5cc | 51 | } |
fe4da5cc | 52 | |
d15a28e7 | 53 | //____________________________________________________________________________ |
fe4da5cc | 54 | void AliPHOS::CreateMaterials() |
55 | { | |
d15a28e7 | 56 | // DEFINITION OF PHOS MATERIALS |
fe4da5cc | 57 | |
d15a28e7 | 58 | // --- The PbWO4 crystals --- |
92862013 | 59 | Float_t aX[3] = {207.19, 183.85, 16.0} ; |
60 | Float_t zX[3] = {82.0, 74.0, 8.0} ; | |
61 | Float_t wX[3] = {1.0, 1.0, 4.0} ; | |
62 | Float_t dX = 8.28 ; | |
fe4da5cc | 63 | |
92862013 | 64 | AliMixture(0, "PbWO4$", aX, zX, dX, -3, wX) ; |
fe4da5cc | 65 | |
fe4da5cc | 66 | |
d15a28e7 | 67 | // --- The polysterene scintillator (CH) --- |
92862013 | 68 | Float_t aP[2] = {12.011, 1.00794} ; |
69 | Float_t zP[2] = {6.0, 1.0} ; | |
70 | Float_t wP[2] = {1.0, 1.0} ; | |
71 | Float_t dP = 1.032 ; | |
fe4da5cc | 72 | |
92862013 | 73 | AliMixture(1, "Polystyrene$", aP, zP, dP, -2, wP) ; |
fe4da5cc | 74 | |
d15a28e7 | 75 | // --- Aluminium --- |
76 | AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ; | |
77 | // --- Absorption length is ignored ^ | |
fe4da5cc | 78 | |
d15a28e7 | 79 | // --- Tyvek (CnH2n) --- |
92862013 | 80 | Float_t aT[2] = {12.011, 1.00794} ; |
81 | Float_t zT[2] = {6.0, 1.0} ; | |
82 | Float_t wT[2] = {1.0, 2.0} ; | |
83 | Float_t dT = 0.331 ; | |
fe4da5cc | 84 | |
92862013 | 85 | AliMixture(3, "Tyvek$", aT, zT, dT, -2, wT) ; |
fe4da5cc | 86 | |
d15a28e7 | 87 | // --- Polystyrene foam --- |
92862013 | 88 | Float_t aF[2] = {12.011, 1.00794} ; |
89 | Float_t zF[2] = {6.0, 1.0} ; | |
90 | Float_t wF[2] = {1.0, 1.0} ; | |
91 | Float_t dF = 0.12 ; | |
fe4da5cc | 92 | |
92862013 | 93 | AliMixture(4, "Foam$", aF, zF, dF, -2, wF) ; |
fe4da5cc | 94 | |
d15a28e7 | 95 | // --- Titanium --- |
92862013 | 96 | Float_t aTIT[3] = {47.88, 26.98, 54.94} ; |
97 | Float_t zTIT[3] = {22.0, 13.0, 25.0} ; | |
98 | Float_t wTIT[3] = {69.0, 6.0, 1.0} ; | |
99 | Float_t dTIT = 4.5 ; | |
fe4da5cc | 100 | |
92862013 | 101 | AliMixture(5, "Titanium$", aTIT, zTIT, dTIT, -3, wTIT); |
fe4da5cc | 102 | |
d15a28e7 | 103 | // --- Silicon --- |
104 | AliMaterial(6, "Si$", 28.0855, 14., 2.33, 9.36, 42.3, 0, 0) ; | |
fe4da5cc | 105 | |
fe4da5cc | 106 | |
fe4da5cc | 107 | |
d15a28e7 | 108 | // --- Foam thermo insulation --- |
92862013 | 109 | Float_t aTI[2] = {12.011, 1.00794} ; |
110 | Float_t zTI[2] = {6.0, 1.0} ; | |
111 | Float_t wTI[2] = {1.0, 1.0} ; | |
112 | Float_t dTI = 0.1 ; | |
fe4da5cc | 113 | |
92862013 | 114 | AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ; |
fe4da5cc | 115 | |
d15a28e7 | 116 | // --- Textolitn --- |
92862013 | 117 | Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ; |
118 | Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ; | |
119 | Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ; | |
120 | Float_t dTX = 1.75 ; | |
fe4da5cc | 121 | |
92862013 | 122 | AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ; |
fe4da5cc | 123 | |
d15a28e7 | 124 | //--- FR4 --- |
92862013 | 125 | Float_t aFR[3] = {28.0855, 15.9994, 17.749} ; |
126 | Float_t zFR[3] = {14., 8., 8.875} ; | |
127 | Float_t wFR[3] = {.28, .32, .4} ; | |
128 | Float_t dFR = 1.8 ; | |
fe4da5cc | 129 | |
92862013 | 130 | AliMixture(9, "FR4$", aFR, zFR, dFR, -3, wFR) ; |
fe4da5cc | 131 | |
d15a28e7 | 132 | // --- The Composite Material for micromegas (so far polyetylene) --- |
92862013 | 133 | Float_t aCM[2] = {12.01, 1.} ; |
134 | Float_t zCM[2] = {6., 1.} ; | |
135 | Float_t wCM[2] = {1., 2.} ; | |
136 | Float_t dCM = 0.935 ; | |
fe4da5cc | 137 | |
92862013 | 138 | AliMixture(10, "Compo Mat$", aCM, zCM, dCM, -2, wCM) ; |
fe4da5cc | 139 | |
d15a28e7 | 140 | // --- Copper --- |
141 | AliMaterial(11, "Cu$", 63.546, 29, 8.96, 1.43, 14.8, 0, 0) ; | |
142 | ||
143 | // --- G10 : Printed Circuit material --- | |
92862013 | 144 | Float_t aG10[4] = { 12., 1., 16., 28.} ; |
145 | Float_t zG10[4] = { 6., 1., 8., 14.} ; | |
146 | Float_t wG10[4] = { .259, .288, .248, .205} ; | |
147 | Float_t dG10 = 1.7 ; | |
d15a28e7 | 148 | |
92862013 | 149 | AliMixture(12, "G10$", aG10, zG10, dG10, -4, wG10); |
fe4da5cc | 150 | |
d15a28e7 | 151 | // --- Lead --- |
152 | AliMaterial(13, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ; | |
fe4da5cc | 153 | |
d15a28e7 | 154 | // --- The gas mixture --- |
155 | // Co2 | |
92862013 | 156 | Float_t aCO[2] = {12.0, 16.0} ; |
157 | Float_t zCO[2] = {6.0, 8.0} ; | |
158 | Float_t wCO[2] = {1.0, 2.0} ; | |
159 | Float_t dCO = 0.001977 ; | |
fe4da5cc | 160 | |
92862013 | 161 | AliMixture(14, "CO2$", aCO, zCO, dCO, -2, wCO); |
fe4da5cc | 162 | |
d15a28e7 | 163 | // Ar |
92862013 | 164 | Float_t dAr = 0.001782 ; |
165 | AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ; | |
d15a28e7 | 166 | |
167 | // ArCo2 | |
168 | Char_t namate[21]; | |
92862013 | 169 | Float_t aGM[2] ; |
170 | Float_t zGM[2] ; | |
171 | Float_t wGM[2] ; | |
172 | Float_t dGM ; | |
fe4da5cc | 173 | |
92862013 | 174 | Float_t absL, radL, density ; |
d15a28e7 | 175 | Float_t buf[1] ; |
176 | Int_t nbuf ; | |
bc9ab547 | 177 | |
92862013 | 178 | gMC->Gfmate((*fIdmate)[15], namate, aGM[0], zGM[0], density, radL, absL, buf, nbuf) ; // Get properties of Ar |
179 | gMC->Gfmate((*fIdmate)[14], namate, aGM[1], zGM[1], density, radL, absL, buf, nbuf) ; // Get properties of CO2 | |
bc9ab547 | 180 | |
fe4da5cc | 181 | |
d15a28e7 | 182 | // Create gas mixture |
fe4da5cc | 183 | |
92862013 | 184 | Float_t arContent = 0.80 ; // Ar-content of the Ar/CO2-mixture (80% / 20%) |
d15a28e7 | 185 | |
92862013 | 186 | wGM[0] = arContent; |
187 | wGM[1] = 1. - arContent ; | |
188 | dGM = wGM[0] * dAr + wGM[1] * dCO; | |
fe4da5cc | 189 | |
92862013 | 190 | AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ; |
fe4da5cc | 191 | |
d15a28e7 | 192 | |
193 | // --- Air --- | |
194 | AliMaterial(99, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ; | |
fe4da5cc | 195 | |
d15a28e7 | 196 | |
197 | // DEFINITION OF THE TRACKING MEDIA | |
fe4da5cc | 198 | |
d15a28e7 | 199 | // for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100] |
200 | Int_t * idtmed = fIdtmed->GetArray() - 699 ; | |
92862013 | 201 | Int_t isxfld = gAlice->Field()->Integ() ; |
202 | Float_t sxmgmx = gAlice->Field()->Max() ; | |
fe4da5cc | 203 | |
d15a28e7 | 204 | // The scintillator of the calorimeter made of PBW04 -> idtmed[699] |
205 | AliMedium(0, "PHOS Xtal $", 0, 1, | |
92862013 | 206 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 207 | |
d15a28e7 | 208 | // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[700] |
209 | AliMedium(1, "CPV scint. $", 1, 1, | |
92862013 | 210 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 211 | |
d15a28e7 | 212 | // Various Aluminium parts made of Al -> idtmed[701] |
213 | AliMedium(2, "Al parts $", 2, 0, | |
92862013 | 214 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ; |
fe4da5cc | 215 | |
d15a28e7 | 216 | // The Tywek which wraps the calorimeter crystals -> idtmed[702] |
217 | AliMedium(3, "Tyvek wrapper$", 3, 0, | |
92862013 | 218 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ; |
fe4da5cc | 219 | |
d15a28e7 | 220 | // The Polystyrene foam around the calorimeter module -> idtmed[703] |
221 | AliMedium(4, "Polyst. foam $", 4, 0, | |
92862013 | 222 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 223 | |
d15a28e7 | 224 | // The Titanium around the calorimeter crystal -> idtmed[704] |
225 | AliMedium(5, "Titan. cover $", 5, 0, | |
92862013 | 226 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.0001, 0.0001, 0, 0) ; |
fe4da5cc | 227 | |
d15a28e7 | 228 | // The Silicon of the pin diode to read out the calorimeter crystal -> idtmed[705] |
229 | AliMedium(6, "Si PIN $", 6, 0, | |
92862013 | 230 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.01, 0.01, 0, 0) ; |
fe4da5cc | 231 | |
d15a28e7 | 232 | // The thermo insulating material of the box which contains the calorimeter module -> idtmed[706] |
233 | AliMedium(7, "Thermo Insul.$", 7, 0, | |
92862013 | 234 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 235 | |
d15a28e7 | 236 | // The Textolit which makes up the box which contains the calorimeter module -> idtmed[707] |
237 | AliMedium(8, "Textolit $", 8, 0, | |
92862013 | 238 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 239 | |
d15a28e7 | 240 | // FR4: The Plastic which makes up the frame of micromegas -> idtmed[708] |
241 | AliMedium(9, "FR4 $", 9, 0, | |
92862013 | 242 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ; |
fe4da5cc | 243 | |
fe4da5cc | 244 | |
d15a28e7 | 245 | // The Composite Material for micromegas -> idtmed[709] |
246 | AliMedium(10, "CompoMat $", 10, 0, | |
92862013 | 247 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 248 | |
d15a28e7 | 249 | // Copper -> idtmed[710] |
250 | AliMedium(11, "Copper $", 11, 0, | |
92862013 | 251 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ; |
fe4da5cc | 252 | |
d15a28e7 | 253 | // G10: Printed Circuit material -> idtmed[711] |
254 | ||
255 | AliMedium(12, "G10 $", 12, 0, | |
92862013 | 256 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ; |
fe4da5cc | 257 | |
d15a28e7 | 258 | // The Lead -> idtmed[712] |
259 | ||
260 | AliMedium(13, "Lead $", 13, 0, | |
92862013 | 261 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 262 | |
d15a28e7 | 263 | // The gas mixture: ArCo2 -> idtmed[715] |
264 | ||
265 | AliMedium(16, "ArCo2 $", 16, 1, | |
92862013 | 266 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ; |
d15a28e7 | 267 | |
268 | // Air -> idtmed[798] | |
269 | AliMedium(99, "Air $", 99, 0, | |
92862013 | 270 | isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; |
fe4da5cc | 271 | |
d15a28e7 | 272 | // --- Set decent energy thresholds for gamma and electron tracking |
fe4da5cc | 273 | |
d15a28e7 | 274 | // Tracking threshold for photons and electrons in the scintillator crystal |
275 | gMC->Gstpar(idtmed[699], "CUTGAM",0.5E-4) ; | |
276 | gMC->Gstpar(idtmed[699], "CUTELE",1.0E-4) ; | |
9f616d61 | 277 | |
d15a28e7 | 278 | // --- Generate explicitly delta rays in the titan cover --- |
279 | gMC->Gstpar(idtmed[704], "LOSS",3.) ; | |
280 | gMC->Gstpar(idtmed[704], "DRAY",1.) ; | |
d15a28e7 | 281 | // --- and in aluminium parts --- |
282 | gMC->Gstpar(idtmed[701], "LOSS",3.) ; | |
283 | gMC->Gstpar(idtmed[701], "DRAY",1.) ; | |
92862013 | 284 | // --- and in PIN diode |
285 | gMC->Gstpar(idtmed[705], "LOSS",3) ; | |
286 | gMC->Gstpar(idtmed[705], "DRAY",1) ; | |
287 | // --- and in the passive convertor | |
288 | gMC->Gstpar(idtmed[712], "LOSS",3) ; | |
289 | gMC->Gstpar(idtmed[712], "DRAY",1) ; | |
290 | // Tracking threshold for photons and electrons in the gas ArC02 | |
291 | gMC->Gstpar(idtmed[715], "CUTGAM",5.E-7) ; | |
292 | gMC->Gstpar(idtmed[715], "CUTELE",5.E-7) ; | |
293 | gMC->Gstpar(idtmed[715], "CUTNEU",5.E-7) ; | |
294 | gMC->Gstpar(idtmed[715], "CUTHAD",5.E-7) ; | |
295 | gMC->Gstpar(idtmed[715], "CUTMUO",5.E-7) ; | |
296 | gMC->Gstpar(idtmed[715], "BCUTE",5.E-7) ; | |
297 | gMC->Gstpar(idtmed[715], "BCUTM",5.E-7) ; | |
298 | gMC->Gstpar(idtmed[715], "DCUTE",5.E-7) ; | |
299 | gMC->Gstpar(idtmed[715], "DCUTM",5.E-7) ; | |
300 | gMC->Gstpar(idtmed[715], "PPCUTM",5.E-7) ; | |
9f616d61 | 301 | gMC->Gstpar(idtmed[715], "LOSS",2.) ; |
302 | gMC->Gstpar(idtmed[715], "DRAY",0.) ; | |
303 | gMC->Gstpar(idtmed[715], "STRA",2.) ; | |
304 | ||
305 | ||
306 | ||
307 | ||
fe4da5cc | 308 | } |