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