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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 | ||
b2a60966 | 16 | /* $Id$ */ |
17 | ||
d15a28e7 | 18 | //_________________________________________________________________________ |
b2a60966 | 19 | // Base Class for PHOS description: |
20 | // PHOS consists of a PbWO4 calorimeter (EMCA) and a gazeous charged | |
21 | // particles detector (CPV or PPSD). | |
22 | // The only provided method here is CreateMaterials, | |
23 | // which defines the materials common to all PHOS versions. | |
24 | // | |
25 | //*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH) | |
d15a28e7 | 26 | ////////////////////////////////////////////////////////////////////////////// |
e84be1eb | 27 | |
fe4da5cc | 28 | // --- ROOT system --- |
fe4da5cc | 29 | |
30 | // --- Standard library --- | |
fe4da5cc | 31 | |
d15a28e7 | 32 | // --- AliRoot header files --- |
33 | ||
fe4da5cc | 34 | #include "AliPHOS.h" |
d15a28e7 | 35 | #include "AliMC.h" |
fe4da5cc | 36 | #include "AliRun.h" |
fe4da5cc | 37 | |
fe4da5cc | 38 | ClassImp(AliPHOS) |
39 | ||
d15a28e7 | 40 | //____________________________________________________________________________ |
41 | AliPHOS::~AliPHOS() | |
fe4da5cc | 42 | { |
88714635 | 43 | // dtor |
d15a28e7 | 44 | delete fHits ; |
45 | delete fDigits ; | |
fe4da5cc | 46 | } |
fe4da5cc | 47 | |
d15a28e7 | 48 | //____________________________________________________________________________ |
fe4da5cc | 49 | void AliPHOS::CreateMaterials() |
50 | { | |
b2a60966 | 51 | // Definitions of materials to build PHOS and associated tracking media. |
52 | // media number in idtmed are 699 to 798. | |
fe4da5cc | 53 | |
d15a28e7 | 54 | // --- The PbWO4 crystals --- |
92862013 | 55 | Float_t aX[3] = {207.19, 183.85, 16.0} ; |
56 | Float_t zX[3] = {82.0, 74.0, 8.0} ; | |
57 | Float_t wX[3] = {1.0, 1.0, 4.0} ; | |
58 | Float_t dX = 8.28 ; | |
fe4da5cc | 59 | |
92862013 | 60 | AliMixture(0, "PbWO4$", aX, zX, dX, -3, wX) ; |
fe4da5cc | 61 | |
fe4da5cc | 62 | |
d15a28e7 | 63 | // --- The polysterene scintillator (CH) --- |
92862013 | 64 | Float_t aP[2] = {12.011, 1.00794} ; |
65 | Float_t zP[2] = {6.0, 1.0} ; | |
66 | Float_t wP[2] = {1.0, 1.0} ; | |
67 | Float_t dP = 1.032 ; | |
fe4da5cc | 68 | |
92862013 | 69 | AliMixture(1, "Polystyrene$", aP, zP, dP, -2, wP) ; |
fe4da5cc | 70 | |
d15a28e7 | 71 | // --- Aluminium --- |
72 | AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ; | |
73 | // --- Absorption length is ignored ^ | |
fe4da5cc | 74 | |
d15a28e7 | 75 | // --- Tyvek (CnH2n) --- |
92862013 | 76 | Float_t aT[2] = {12.011, 1.00794} ; |
77 | Float_t zT[2] = {6.0, 1.0} ; | |
78 | Float_t wT[2] = {1.0, 2.0} ; | |
79 | Float_t dT = 0.331 ; | |
fe4da5cc | 80 | |
92862013 | 81 | AliMixture(3, "Tyvek$", aT, zT, dT, -2, wT) ; |
fe4da5cc | 82 | |
d15a28e7 | 83 | // --- Polystyrene foam --- |
92862013 | 84 | Float_t aF[2] = {12.011, 1.00794} ; |
85 | Float_t zF[2] = {6.0, 1.0} ; | |
86 | Float_t wF[2] = {1.0, 1.0} ; | |
87 | Float_t dF = 0.12 ; | |
fe4da5cc | 88 | |
92862013 | 89 | AliMixture(4, "Foam$", aF, zF, dF, -2, wF) ; |
fe4da5cc | 90 | |
d15a28e7 | 91 | // --- Titanium --- |
92862013 | 92 | Float_t aTIT[3] = {47.88, 26.98, 54.94} ; |
93 | Float_t zTIT[3] = {22.0, 13.0, 25.0} ; | |
94 | Float_t wTIT[3] = {69.0, 6.0, 1.0} ; | |
95 | Float_t dTIT = 4.5 ; | |
fe4da5cc | 96 | |
92862013 | 97 | AliMixture(5, "Titanium$", aTIT, zTIT, dTIT, -3, wTIT); |
fe4da5cc | 98 | |
d15a28e7 | 99 | // --- Silicon --- |
100 | AliMaterial(6, "Si$", 28.0855, 14., 2.33, 9.36, 42.3, 0, 0) ; | |
fe4da5cc | 101 | |
fe4da5cc | 102 | |
fe4da5cc | 103 | |
d15a28e7 | 104 | // --- Foam thermo insulation --- |
92862013 | 105 | Float_t aTI[2] = {12.011, 1.00794} ; |
106 | Float_t zTI[2] = {6.0, 1.0} ; | |
107 | Float_t wTI[2] = {1.0, 1.0} ; | |
108 | Float_t dTI = 0.1 ; | |
fe4da5cc | 109 | |
92862013 | 110 | AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ; |
fe4da5cc | 111 | |
d15a28e7 | 112 | // --- Textolitn --- |
92862013 | 113 | Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ; |
114 | Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ; | |
115 | Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ; | |
116 | Float_t dTX = 1.75 ; | |
fe4da5cc | 117 | |
92862013 | 118 | AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ; |
fe4da5cc | 119 | |
d15a28e7 | 120 | //--- FR4 --- |
92862013 | 121 | Float_t aFR[3] = {28.0855, 15.9994, 17.749} ; |
122 | Float_t zFR[3] = {14., 8., 8.875} ; | |
123 | Float_t wFR[3] = {.28, .32, .4} ; | |
124 | Float_t dFR = 1.8 ; | |
fe4da5cc | 125 | |
92862013 | 126 | AliMixture(9, "FR4$", aFR, zFR, dFR, -3, wFR) ; |
fe4da5cc | 127 | |
d15a28e7 | 128 | // --- The Composite Material for micromegas (so far polyetylene) --- |
92862013 | 129 | Float_t aCM[2] = {12.01, 1.} ; |
130 | Float_t zCM[2] = {6., 1.} ; | |
131 | Float_t wCM[2] = {1., 2.} ; | |
132 | Float_t dCM = 0.935 ; | |
fe4da5cc | 133 | |
92862013 | 134 | AliMixture(10, "Compo Mat$", aCM, zCM, dCM, -2, wCM) ; |
fe4da5cc | 135 | |
d15a28e7 | 136 | // --- Copper --- |
137 | AliMaterial(11, "Cu$", 63.546, 29, 8.96, 1.43, 14.8, 0, 0) ; | |
138 | ||
139 | // --- G10 : Printed Circuit material --- | |
92862013 | 140 | Float_t aG10[4] = { 12., 1., 16., 28.} ; |
141 | Float_t zG10[4] = { 6., 1., 8., 14.} ; | |
142 | Float_t wG10[4] = { .259, .288, .248, .205} ; | |
143 | Float_t dG10 = 1.7 ; | |
d15a28e7 | 144 | |
92862013 | 145 | AliMixture(12, "G10$", aG10, zG10, dG10, -4, wG10); |
fe4da5cc | 146 | |
d15a28e7 | 147 | // --- Lead --- |
148 | AliMaterial(13, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ; | |
fe4da5cc | 149 | |
d15a28e7 | 150 | // --- The gas mixture --- |
151 | // Co2 | |
92862013 | 152 | Float_t aCO[2] = {12.0, 16.0} ; |
153 | Float_t zCO[2] = {6.0, 8.0} ; | |
154 | Float_t wCO[2] = {1.0, 2.0} ; | |
155 | Float_t dCO = 0.001977 ; | |
fe4da5cc | 156 | |
92862013 | 157 | AliMixture(14, "CO2$", aCO, zCO, dCO, -2, wCO); |
fe4da5cc | 158 | |
d15a28e7 | 159 | // Ar |
92862013 | 160 | Float_t dAr = 0.001782 ; |
161 | AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ; | |
d15a28e7 | 162 | |
163 | // ArCo2 | |
164 | Char_t namate[21]; | |
92862013 | 165 | Float_t aGM[2] ; |
166 | Float_t zGM[2] ; | |
167 | Float_t wGM[2] ; | |
168 | Float_t dGM ; | |
fe4da5cc | 169 | |
92862013 | 170 | Float_t absL, radL, density ; |
d15a28e7 | 171 | Float_t buf[1] ; |
172 | Int_t nbuf ; | |
bc9ab547 | 173 | |
92862013 | 174 | gMC->Gfmate((*fIdmate)[15], namate, aGM[0], zGM[0], density, radL, absL, buf, nbuf) ; // Get properties of Ar |
175 | gMC->Gfmate((*fIdmate)[14], namate, aGM[1], zGM[1], density, radL, absL, buf, nbuf) ; // Get properties of CO2 | |
bc9ab547 | 176 | |
fe4da5cc | 177 | |
d15a28e7 | 178 | // Create gas mixture |
fe4da5cc | 179 | |
92862013 | 180 | Float_t arContent = 0.80 ; // Ar-content of the Ar/CO2-mixture (80% / 20%) |
d15a28e7 | 181 | |
92862013 | 182 | wGM[0] = arContent; |
183 | wGM[1] = 1. - arContent ; | |
184 | dGM = wGM[0] * dAr + wGM[1] * dCO; | |
fe4da5cc | 185 | |
92862013 | 186 | AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ; |
fe4da5cc | 187 | |
d15a28e7 | 188 | |
189 | // --- Air --- | |
190 | AliMaterial(99, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ; | |
fe4da5cc | 191 | |
d15a28e7 | 192 | |
193 | // DEFINITION OF THE TRACKING MEDIA | |
fe4da5cc | 194 | |
d15a28e7 | 195 | // for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100] |
196 | Int_t * idtmed = fIdtmed->GetArray() - 699 ; | |
92862013 | 197 | Int_t isxfld = gAlice->Field()->Integ() ; |
198 | Float_t sxmgmx = gAlice->Field()->Max() ; | |
fe4da5cc | 199 | |
d15a28e7 | 200 | // The scintillator of the calorimeter made of PBW04 -> idtmed[699] |
201 | AliMedium(0, "PHOS Xtal $", 0, 1, | |
92862013 | 202 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 203 | |
d15a28e7 | 204 | // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[700] |
205 | AliMedium(1, "CPV scint. $", 1, 1, | |
92862013 | 206 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 207 | |
d15a28e7 | 208 | // Various Aluminium parts made of Al -> idtmed[701] |
209 | AliMedium(2, "Al parts $", 2, 0, | |
92862013 | 210 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ; |
fe4da5cc | 211 | |
d15a28e7 | 212 | // The Tywek which wraps the calorimeter crystals -> idtmed[702] |
213 | AliMedium(3, "Tyvek wrapper$", 3, 0, | |
92862013 | 214 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ; |
fe4da5cc | 215 | |
d15a28e7 | 216 | // The Polystyrene foam around the calorimeter module -> idtmed[703] |
217 | AliMedium(4, "Polyst. foam $", 4, 0, | |
92862013 | 218 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 219 | |
d15a28e7 | 220 | // The Titanium around the calorimeter crystal -> idtmed[704] |
221 | AliMedium(5, "Titan. cover $", 5, 0, | |
92862013 | 222 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.0001, 0.0001, 0, 0) ; |
fe4da5cc | 223 | |
d15a28e7 | 224 | // The Silicon of the pin diode to read out the calorimeter crystal -> idtmed[705] |
225 | AliMedium(6, "Si PIN $", 6, 0, | |
92862013 | 226 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.01, 0.01, 0, 0) ; |
fe4da5cc | 227 | |
d15a28e7 | 228 | // The thermo insulating material of the box which contains the calorimeter module -> idtmed[706] |
229 | AliMedium(7, "Thermo Insul.$", 7, 0, | |
92862013 | 230 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 231 | |
d15a28e7 | 232 | // The Textolit which makes up the box which contains the calorimeter module -> idtmed[707] |
233 | AliMedium(8, "Textolit $", 8, 0, | |
92862013 | 234 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 235 | |
d15a28e7 | 236 | // FR4: The Plastic which makes up the frame of micromegas -> idtmed[708] |
237 | AliMedium(9, "FR4 $", 9, 0, | |
92862013 | 238 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ; |
fe4da5cc | 239 | |
fe4da5cc | 240 | |
d15a28e7 | 241 | // The Composite Material for micromegas -> idtmed[709] |
242 | AliMedium(10, "CompoMat $", 10, 0, | |
92862013 | 243 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 244 | |
d15a28e7 | 245 | // Copper -> idtmed[710] |
246 | AliMedium(11, "Copper $", 11, 0, | |
92862013 | 247 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ; |
fe4da5cc | 248 | |
d15a28e7 | 249 | // G10: Printed Circuit material -> idtmed[711] |
250 | ||
251 | AliMedium(12, "G10 $", 12, 0, | |
92862013 | 252 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ; |
fe4da5cc | 253 | |
d15a28e7 | 254 | // The Lead -> idtmed[712] |
255 | ||
256 | AliMedium(13, "Lead $", 13, 0, | |
92862013 | 257 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; |
fe4da5cc | 258 | |
d15a28e7 | 259 | // The gas mixture: ArCo2 -> idtmed[715] |
260 | ||
261 | AliMedium(16, "ArCo2 $", 16, 1, | |
92862013 | 262 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ; |
d15a28e7 | 263 | |
264 | // Air -> idtmed[798] | |
265 | AliMedium(99, "Air $", 99, 0, | |
92862013 | 266 | isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; |
fe4da5cc | 267 | |
d15a28e7 | 268 | // --- Set decent energy thresholds for gamma and electron tracking |
fe4da5cc | 269 | |
d15a28e7 | 270 | // Tracking threshold for photons and electrons in the scintillator crystal |
271 | gMC->Gstpar(idtmed[699], "CUTGAM",0.5E-4) ; | |
272 | gMC->Gstpar(idtmed[699], "CUTELE",1.0E-4) ; | |
9f616d61 | 273 | |
d15a28e7 | 274 | // --- Generate explicitly delta rays in the titan cover --- |
275 | gMC->Gstpar(idtmed[704], "LOSS",3.) ; | |
276 | gMC->Gstpar(idtmed[704], "DRAY",1.) ; | |
d15a28e7 | 277 | // --- and in aluminium parts --- |
278 | gMC->Gstpar(idtmed[701], "LOSS",3.) ; | |
279 | gMC->Gstpar(idtmed[701], "DRAY",1.) ; | |
92862013 | 280 | // --- and in PIN diode |
281 | gMC->Gstpar(idtmed[705], "LOSS",3) ; | |
282 | gMC->Gstpar(idtmed[705], "DRAY",1) ; | |
283 | // --- and in the passive convertor | |
284 | gMC->Gstpar(idtmed[712], "LOSS",3) ; | |
285 | gMC->Gstpar(idtmed[712], "DRAY",1) ; | |
286 | // Tracking threshold for photons and electrons in the gas ArC02 | |
b7101219 | 287 | gMC->Gstpar(idtmed[715], "CUTGAM",1.E-5) ; |
288 | gMC->Gstpar(idtmed[715], "CUTELE",1.E-5) ; | |
289 | gMC->Gstpar(idtmed[715], "CUTNEU",1.E-5) ; | |
290 | gMC->Gstpar(idtmed[715], "CUTHAD",1.E-5) ; | |
291 | gMC->Gstpar(idtmed[715], "CUTMUO",1.E-5) ; | |
292 | gMC->Gstpar(idtmed[715], "BCUTE",1.E-5) ; | |
293 | gMC->Gstpar(idtmed[715], "BCUTM",1.E-5) ; | |
294 | gMC->Gstpar(idtmed[715], "DCUTE",1.E-5) ; | |
295 | gMC->Gstpar(idtmed[715], "DCUTM",1.E-5) ; | |
296 | gMC->Gstpar(idtmed[715], "PPCUTM",1.E-5) ; | |
9f616d61 | 297 | gMC->Gstpar(idtmed[715], "LOSS",2.) ; |
298 | gMC->Gstpar(idtmed[715], "DRAY",0.) ; | |
299 | gMC->Gstpar(idtmed[715], "STRA",2.) ; | |
300 | ||
0c409cb2 | 301 | } |
302 | ||
303 | //____________________________________________________________________________ | |
2ea4f4fc | 304 | void AliPHOS::SetTreeAddress() |
305 | { | |
07a64e48 | 306 | // TBranch *branch; |
2ea4f4fc | 307 | AliDetector::SetTreeAddress(); |
308 | ||
07a64e48 | 309 | // //Branch address for TreeR: RecParticles |
310 | // TTree *treeR = gAlice->TreeR(); | |
311 | // if ( treeR && fRecParticles ) { | |
312 | // branch = treeR->GetBranch("PHOSRP"); | |
313 | // if (branch) branch->SetAddress(&fRecParticles) ; | |
314 | // } | |
315 | // //Branch address for TreeR: TrackSegments | |
316 | // if ( treeR && fTrackSegments ) { | |
317 | // branch = treeR->GetBranch("PHOSTS"); | |
318 | // if (branch) branch->SetAddress(&fTrackSegments) ; | |
319 | // } | |
320 | // //Branch address for TreeR: EmcRecPoint | |
321 | // if ( treeR && fEmcRecPoints ) { | |
322 | // branch = treeR->GetBranch("PHOSEmcRP"); | |
323 | // if (branch) branch->SetAddress(&fEmcRecPoints) ; | |
324 | // } | |
0c409cb2 | 325 | } |
326 | ||
9f616d61 | 327 |