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[u/mrichter/AliRoot.git] / PHOS / AliPHOS.cxx
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b73f246d 1
4c039060 2/**************************************************************************
3 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * *
5 * Author: The ALICE Off-line Project. *
6 * Contributors are mentioned in the code where appropriate. *
7 * *
8 * Permission to use, copy, modify and distribute this software and its *
9 * documentation strictly for non-commercial purposes is hereby granted *
10 * without fee, provided that the above copyright notice appears in all *
11 * copies and that both the copyright notice and this permission notice *
12 * appear in the supporting documentation. The authors make no claims *
13 * about the suitability of this software for any purpose. It is *
14 * provided "as is" without express or implied warranty. *
15 **************************************************************************/
16
b2a60966 17/* $Id$ */
18
d15a28e7 19//_________________________________________________________________________
b2a60966 20// Base Class for PHOS description:
21// PHOS consists of a PbWO4 calorimeter (EMCA) and a gazeous charged
22// particles detector (CPV or PPSD).
23// The only provided method here is CreateMaterials,
24// which defines the materials common to all PHOS versions.
25//
26//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
d15a28e7 27//////////////////////////////////////////////////////////////////////////////
e84be1eb 28
fe4da5cc 29// --- ROOT system ---
2ab0c725 30class TFile;
ed4205d8 31#include "TTree.h"
fe4da5cc 32
33// --- Standard library ---
fe4da5cc 34
037cc66d 35#include <strstream.h>
d15a28e7 36// --- AliRoot header files ---
37
fe4da5cc 38#include "AliPHOS.h"
d15a28e7 39#include "AliMC.h"
fe4da5cc 40#include "AliRun.h"
94de3818 41#include "AliMagF.h"
fe4da5cc 42
fe4da5cc 43ClassImp(AliPHOS)
44
fc879520 45//____________________________________________________________________________
46AliPHOS::AliPHOS():AliDetector()
47{
48 // ctor
49 //We do not create objects, because these pointers will be overwritten durin reading from file.
ed4205d8 50 fDigits = 0 ;
fc879520 51 fEmcRecPoints = 0 ;
52 fPpsdRecPoints = 0 ;
53 fTrackSegments = 0 ;
54 fRecParticles = 0 ;
55
56}
57//____________________________________________________________________________
d43225ee 58AliPHOS::AliPHOS(const char* name, const char* title): AliDetector(name,title)
fc879520 59{
60 // ctor
ed4205d8 61
62 fDigits = 0 ;
63 fEmcRecPoints = 0 ;
64 fPpsdRecPoints = 0 ;
65 fTrackSegments = 0 ;
66 fRecParticles = 0 ;
fc879520 67
68}
d15a28e7 69//____________________________________________________________________________
70AliPHOS::~AliPHOS()
fe4da5cc 71{
88714635 72 // dtor
fc879520 73 if(fEmcRecPoints)
74 fEmcRecPoints->Delete() ;
75 delete fEmcRecPoints ;
76 if(fPpsdRecPoints)
77 fPpsdRecPoints->Delete() ;
78 delete fPpsdRecPoints ;
79 if(fTrackSegments)
80 fTrackSegments->Delete() ;
81 delete fTrackSegments ;
82 if(fRecParticles)
83 fRecParticles->Delete() ;
84 delete fRecParticles ;
d15a28e7 85 delete fHits ;
86 delete fDigits ;
fe4da5cc 87}
fe4da5cc 88
d15a28e7 89//____________________________________________________________________________
fe4da5cc 90void AliPHOS::CreateMaterials()
91{
b2a60966 92 // Definitions of materials to build PHOS and associated tracking media.
93 // media number in idtmed are 699 to 798.
fe4da5cc 94
d15a28e7 95 // --- The PbWO4 crystals ---
92862013 96 Float_t aX[3] = {207.19, 183.85, 16.0} ;
97 Float_t zX[3] = {82.0, 74.0, 8.0} ;
98 Float_t wX[3] = {1.0, 1.0, 4.0} ;
99 Float_t dX = 8.28 ;
fe4da5cc 100
92862013 101 AliMixture(0, "PbWO4$", aX, zX, dX, -3, wX) ;
fe4da5cc 102
fe4da5cc 103
d15a28e7 104 // --- The polysterene scintillator (CH) ---
92862013 105 Float_t aP[2] = {12.011, 1.00794} ;
106 Float_t zP[2] = {6.0, 1.0} ;
107 Float_t wP[2] = {1.0, 1.0} ;
108 Float_t dP = 1.032 ;
fe4da5cc 109
92862013 110 AliMixture(1, "Polystyrene$", aP, zP, dP, -2, wP) ;
fe4da5cc 111
d15a28e7 112 // --- Aluminium ---
113 AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
114 // --- Absorption length is ignored ^
fe4da5cc 115
d15a28e7 116 // --- Tyvek (CnH2n) ---
92862013 117 Float_t aT[2] = {12.011, 1.00794} ;
118 Float_t zT[2] = {6.0, 1.0} ;
119 Float_t wT[2] = {1.0, 2.0} ;
120 Float_t dT = 0.331 ;
fe4da5cc 121
92862013 122 AliMixture(3, "Tyvek$", aT, zT, dT, -2, wT) ;
fe4da5cc 123
d15a28e7 124 // --- Polystyrene foam ---
92862013 125 Float_t aF[2] = {12.011, 1.00794} ;
126 Float_t zF[2] = {6.0, 1.0} ;
127 Float_t wF[2] = {1.0, 1.0} ;
128 Float_t dF = 0.12 ;
fe4da5cc 129
92862013 130 AliMixture(4, "Foam$", aF, zF, dF, -2, wF) ;
fe4da5cc 131
d15a28e7 132 // --- Titanium ---
92862013 133 Float_t aTIT[3] = {47.88, 26.98, 54.94} ;
134 Float_t zTIT[3] = {22.0, 13.0, 25.0} ;
135 Float_t wTIT[3] = {69.0, 6.0, 1.0} ;
136 Float_t dTIT = 4.5 ;
fe4da5cc 137
92862013 138 AliMixture(5, "Titanium$", aTIT, zTIT, dTIT, -3, wTIT);
fe4da5cc 139
d15a28e7 140 // --- Silicon ---
141 AliMaterial(6, "Si$", 28.0855, 14., 2.33, 9.36, 42.3, 0, 0) ;
fe4da5cc 142
fe4da5cc 143
fe4da5cc 144
d15a28e7 145 // --- Foam thermo insulation ---
92862013 146 Float_t aTI[2] = {12.011, 1.00794} ;
147 Float_t zTI[2] = {6.0, 1.0} ;
148 Float_t wTI[2] = {1.0, 1.0} ;
149 Float_t dTI = 0.1 ;
fe4da5cc 150
92862013 151 AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ;
fe4da5cc 152
d15a28e7 153 // --- Textolitn ---
92862013 154 Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ;
155 Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ;
156 Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ;
157 Float_t dTX = 1.75 ;
fe4da5cc 158
92862013 159 AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ;
fe4da5cc 160
d15a28e7 161 //--- FR4 ---
92862013 162 Float_t aFR[3] = {28.0855, 15.9994, 17.749} ;
163 Float_t zFR[3] = {14., 8., 8.875} ;
164 Float_t wFR[3] = {.28, .32, .4} ;
165 Float_t dFR = 1.8 ;
fe4da5cc 166
92862013 167 AliMixture(9, "FR4$", aFR, zFR, dFR, -3, wFR) ;
fe4da5cc 168
d15a28e7 169 // --- The Composite Material for micromegas (so far polyetylene) ---
92862013 170 Float_t aCM[2] = {12.01, 1.} ;
171 Float_t zCM[2] = {6., 1.} ;
172 Float_t wCM[2] = {1., 2.} ;
173 Float_t dCM = 0.935 ;
fe4da5cc 174
92862013 175 AliMixture(10, "Compo Mat$", aCM, zCM, dCM, -2, wCM) ;
fe4da5cc 176
d15a28e7 177 // --- Copper ---
178 AliMaterial(11, "Cu$", 63.546, 29, 8.96, 1.43, 14.8, 0, 0) ;
179
180 // --- G10 : Printed Circuit material ---
92862013 181 Float_t aG10[4] = { 12., 1., 16., 28.} ;
182 Float_t zG10[4] = { 6., 1., 8., 14.} ;
183 Float_t wG10[4] = { .259, .288, .248, .205} ;
184 Float_t dG10 = 1.7 ;
d15a28e7 185
92862013 186 AliMixture(12, "G10$", aG10, zG10, dG10, -4, wG10);
fe4da5cc 187
d15a28e7 188 // --- Lead ---
189 AliMaterial(13, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
fe4da5cc 190
d15a28e7 191 // --- The gas mixture ---
192 // Co2
92862013 193 Float_t aCO[2] = {12.0, 16.0} ;
194 Float_t zCO[2] = {6.0, 8.0} ;
195 Float_t wCO[2] = {1.0, 2.0} ;
196 Float_t dCO = 0.001977 ;
fe4da5cc 197
92862013 198 AliMixture(14, "CO2$", aCO, zCO, dCO, -2, wCO);
fe4da5cc 199
d15a28e7 200 // Ar
92862013 201 Float_t dAr = 0.001782 ;
202 AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ;
d15a28e7 203
204 // ArCo2
205 Char_t namate[21];
92862013 206 Float_t aGM[2] ;
207 Float_t zGM[2] ;
208 Float_t wGM[2] ;
209 Float_t dGM ;
fe4da5cc 210
92862013 211 Float_t absL, radL, density ;
d15a28e7 212 Float_t buf[1] ;
213 Int_t nbuf ;
bc9ab547 214
92862013 215 gMC->Gfmate((*fIdmate)[15], namate, aGM[0], zGM[0], density, radL, absL, buf, nbuf) ; // Get properties of Ar
216 gMC->Gfmate((*fIdmate)[14], namate, aGM[1], zGM[1], density, radL, absL, buf, nbuf) ; // Get properties of CO2
bc9ab547 217
fe4da5cc 218
d15a28e7 219 // Create gas mixture
fe4da5cc 220
92862013 221 Float_t arContent = 0.80 ; // Ar-content of the Ar/CO2-mixture (80% / 20%)
d15a28e7 222
92862013 223 wGM[0] = arContent;
224 wGM[1] = 1. - arContent ;
225 dGM = wGM[0] * dAr + wGM[1] * dCO;
fe4da5cc 226
92862013 227 AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ;
fe4da5cc 228
a530ba0a 229 // --- Stainless steel (let it be pure iron) ---
230 AliMaterial(17, "Steel$", 55.845, 26, 7.87, 1.76, 0., 0, 0) ;
d15a28e7 231
232 // --- Air ---
233 AliMaterial(99, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ;
fe4da5cc 234
d15a28e7 235
236 // DEFINITION OF THE TRACKING MEDIA
fe4da5cc 237
d15a28e7 238 // for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100]
239 Int_t * idtmed = fIdtmed->GetArray() - 699 ;
92862013 240 Int_t isxfld = gAlice->Field()->Integ() ;
241 Float_t sxmgmx = gAlice->Field()->Max() ;
fe4da5cc 242
d15a28e7 243 // The scintillator of the calorimeter made of PBW04 -> idtmed[699]
244 AliMedium(0, "PHOS Xtal $", 0, 1,
92862013 245 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 246
d15a28e7 247 // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[700]
248 AliMedium(1, "CPV scint. $", 1, 1,
92862013 249 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 250
d15a28e7 251 // Various Aluminium parts made of Al -> idtmed[701]
252 AliMedium(2, "Al parts $", 2, 0,
92862013 253 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
fe4da5cc 254
d15a28e7 255 // The Tywek which wraps the calorimeter crystals -> idtmed[702]
256 AliMedium(3, "Tyvek wrapper$", 3, 0,
92862013 257 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
fe4da5cc 258
d15a28e7 259 // The Polystyrene foam around the calorimeter module -> idtmed[703]
260 AliMedium(4, "Polyst. foam $", 4, 0,
92862013 261 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 262
d15a28e7 263 // The Titanium around the calorimeter crystal -> idtmed[704]
264 AliMedium(5, "Titan. cover $", 5, 0,
92862013 265 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.0001, 0.0001, 0, 0) ;
fe4da5cc 266
d15a28e7 267 // The Silicon of the pin diode to read out the calorimeter crystal -> idtmed[705]
268 AliMedium(6, "Si PIN $", 6, 0,
92862013 269 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.01, 0.01, 0, 0) ;
fe4da5cc 270
d15a28e7 271 // The thermo insulating material of the box which contains the calorimeter module -> idtmed[706]
272 AliMedium(7, "Thermo Insul.$", 7, 0,
92862013 273 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 274
d15a28e7 275 // The Textolit which makes up the box which contains the calorimeter module -> idtmed[707]
276 AliMedium(8, "Textolit $", 8, 0,
92862013 277 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 278
d15a28e7 279 // FR4: The Plastic which makes up the frame of micromegas -> idtmed[708]
280 AliMedium(9, "FR4 $", 9, 0,
92862013 281 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
fe4da5cc 282
fe4da5cc 283
d15a28e7 284 // The Composite Material for micromegas -> idtmed[709]
285 AliMedium(10, "CompoMat $", 10, 0,
92862013 286 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 287
d15a28e7 288 // Copper -> idtmed[710]
289 AliMedium(11, "Copper $", 11, 0,
92862013 290 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
fe4da5cc 291
d15a28e7 292 // G10: Printed Circuit material -> idtmed[711]
293
294 AliMedium(12, "G10 $", 12, 0,
92862013 295 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
fe4da5cc 296
d15a28e7 297 // The Lead -> idtmed[712]
298
299 AliMedium(13, "Lead $", 13, 0,
92862013 300 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 301
d15a28e7 302 // The gas mixture: ArCo2 -> idtmed[715]
303
304 AliMedium(16, "ArCo2 $", 16, 1,
92862013 305 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
d15a28e7 306
a530ba0a 307 // Stainless steel -> idtmed[716]
308 AliMedium(17, "Steel $", 17, 0,
309 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
310
d15a28e7 311 // Air -> idtmed[798]
312 AliMedium(99, "Air $", 99, 0,
92862013 313 isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
fe4da5cc 314
d15a28e7 315 // --- Set decent energy thresholds for gamma and electron tracking
fe4da5cc 316
d15a28e7 317 // Tracking threshold for photons and electrons in the scintillator crystal
318 gMC->Gstpar(idtmed[699], "CUTGAM",0.5E-4) ;
319 gMC->Gstpar(idtmed[699], "CUTELE",1.0E-4) ;
9f616d61 320
d15a28e7 321 // --- Generate explicitly delta rays in the titan cover ---
322 gMC->Gstpar(idtmed[704], "LOSS",3.) ;
323 gMC->Gstpar(idtmed[704], "DRAY",1.) ;
d15a28e7 324 // --- and in aluminium parts ---
325 gMC->Gstpar(idtmed[701], "LOSS",3.) ;
326 gMC->Gstpar(idtmed[701], "DRAY",1.) ;
92862013 327 // --- and in PIN diode
328 gMC->Gstpar(idtmed[705], "LOSS",3) ;
329 gMC->Gstpar(idtmed[705], "DRAY",1) ;
330 // --- and in the passive convertor
331 gMC->Gstpar(idtmed[712], "LOSS",3) ;
332 gMC->Gstpar(idtmed[712], "DRAY",1) ;
333 // Tracking threshold for photons and electrons in the gas ArC02
b7101219 334 gMC->Gstpar(idtmed[715], "CUTGAM",1.E-5) ;
335 gMC->Gstpar(idtmed[715], "CUTELE",1.E-5) ;
336 gMC->Gstpar(idtmed[715], "CUTNEU",1.E-5) ;
337 gMC->Gstpar(idtmed[715], "CUTHAD",1.E-5) ;
338 gMC->Gstpar(idtmed[715], "CUTMUO",1.E-5) ;
339 gMC->Gstpar(idtmed[715], "BCUTE",1.E-5) ;
340 gMC->Gstpar(idtmed[715], "BCUTM",1.E-5) ;
341 gMC->Gstpar(idtmed[715], "DCUTE",1.E-5) ;
342 gMC->Gstpar(idtmed[715], "DCUTM",1.E-5) ;
343 gMC->Gstpar(idtmed[715], "PPCUTM",1.E-5) ;
9f616d61 344 gMC->Gstpar(idtmed[715], "LOSS",2.) ;
345 gMC->Gstpar(idtmed[715], "DRAY",0.) ;
346 gMC->Gstpar(idtmed[715], "STRA",2.) ;
347
0c409cb2 348}
0c409cb2 349//____________________________________________________________________________
2ea4f4fc 350void AliPHOS::SetTreeAddress()
351{
037cc66d 352
07a64e48 353 // TBranch *branch;
2ea4f4fc 354 AliDetector::SetTreeAddress();
355
ed4205d8 356 TBranch * branch ;
357
037cc66d 358 if(fSDigits)
359 fSDigits->Clear();
360 else
361 fSDigits = new TClonesArray("AliPHOSDigit",1) ;
362
363 if (gAlice->TreeS() && fSDigits ) {
364 branch = gAlice->TreeS()->GetBranch("PHOS");
365 if (branch) branch->SetAddress(&fSDigits) ;
366 }
367
ed4205d8 368 if(fDigits)
369 fDigits->Clear();
370 else
371 fDigits = new TClonesArray("AliPHOSDigit",1) ;
372
373 if (gAlice->TreeD() && fDigits ) {
374 branch = gAlice->TreeD()->GetBranch("PHOS");
375 if (branch) branch->SetAddress(&fDigits) ;
376 }
377
b73f246d 378 TTree *treeR = gAlice->TreeR();
ed4205d8 379
b73f246d 380 //Branch address for TreeR: EmcRecPoint
381
ed4205d8 382 if(fEmcRecPoints)
383 fEmcRecPoints->Delete();
384 else
385 fEmcRecPoints = new AliPHOSRecPoint::RecPointsList(1) ;
386
387 if ( treeR && fEmcRecPoints ) {
388 branch = treeR->GetBranch("PHOSEmcRP");
389 if (branch) branch->SetAddress(&fEmcRecPoints) ;
390 }
391
392 //Branch address for TreeR: PPSDRecPoint
393 if(fPpsdRecPoints)
394 fPpsdRecPoints->Delete();
395 else
396 fPpsdRecPoints = new AliPHOSRecPoint::RecPointsList(1) ;
397
398 if ( treeR && fPpsdRecPoints ) {
399 branch = treeR->GetBranch("PHOSPpsdRP");
400 if (branch) branch->SetAddress(&fPpsdRecPoints) ;
401 }
402
403 //Branch address for TreeR: TrackSegments
404 if(fTrackSegments)
405 fTrackSegments->Clear() ;
406 else
407 fTrackSegments = new AliPHOSTrackSegment::TrackSegmentsList("AliPHOSTrackSegment", 1) ;
408
409 if ( treeR && fTrackSegments ) {
410 branch = treeR->GetBranch("PHOSTS");
411 if (branch) branch->SetAddress(&fTrackSegments) ;
412 }
413
414 //Branch address for TreeR: RecParticles
415 if(fRecParticles)
416 fRecParticles->Clear() ;
417 else
418 fRecParticles = new AliPHOSRecParticle::RecParticlesList("AliPHOSRecParticle", 1) ;
419
420 if ( treeR && fRecParticles ) {
421 branch = treeR->GetBranch("PHOSRP");
422 if (branch) branch->SetAddress(&fRecParticles) ;
423 }
424
0c409cb2 425}
426
9f616d61 427