Change for a realistic time distribution of the raw signal
[u/mrichter/AliRoot.git] / PHOS / AliPHOS.cxx
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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 *
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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 **************************************************************************/
b2a60966 15/* $Id$ */
16
d15a28e7 17//_________________________________________________________________________
b2a60966 18// Base Class for PHOS description:
19// PHOS consists of a PbWO4 calorimeter (EMCA) and a gazeous charged
20// particles detector (CPV or PPSD).
21// The only provided method here is CreateMaterials,
22// which defines the materials common to all PHOS versions.
23//
24//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
d15a28e7 25//////////////////////////////////////////////////////////////////////////////
e84be1eb 26
fdeead01 27
fe4da5cc 28// --- ROOT system ---
2ab0c725 29class TFile;
88cb7938 30#include <TFolder.h>
88cb7938 31#include <TTree.h>
32#include <TVirtualMC.h>
046ae904 33#include <TH1F.h>
34#include <TF1.h>
e9a5efdf 35#include <TRandom.h>
fe4da5cc 36
37// --- Standard library ---
d15a28e7 38
548f0134 39// --- AliRoot header files ---
94de3818 40#include "AliMagF.h"
88cb7938 41#include "AliPHOS.h"
e9a5efdf 42#include "AliPHOSGetter.h"
85a5290f 43#include "AliRun.h"
44#include "AliPHOSDigitizer.h"
45#include "AliPHOSSDigitizer.h"
65792ca0 46#include "AliPHOSDigit.h"
47#include "AliAltroBuffer.h"
e4d04cf1 48#include "AliLog.h"
7f78a025 49
fe4da5cc 50ClassImp(AliPHOS)
e4d04cf1 51
52Double_t AliPHOS::fgCapa = 1.; // 1pF
53Int_t AliPHOS::fgOrder = 2 ;
54Double_t AliPHOS::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins
55Double_t AliPHOS::fgTimePeak = 4.1E-6 ; // 4 micro seconds
56Double_t AliPHOS::fgTimeTrigger = 100E-9 ; // 100ns, just for a reference
57
58
0ce0b56f 59//____________________________________________________________________________
046ae904 60 AliPHOS:: AliPHOS() : AliDetector()
6b87d0dd 61{
a532e9d8 62 // Default ctor
046ae904 63 fName = "PHOS" ;
2685bf00 64 fQATask = 0;
65 fTreeQA = 0;
3d60069b 66 fDebug = 0;
e4d04cf1 67
6b87d0dd 68}
fa7cce36 69
6b87d0dd 70//____________________________________________________________________________
046ae904 71AliPHOS::AliPHOS(const char* name, const char* title): AliDetector(name, title)
6b87d0dd 72{
a532e9d8 73 // ctor : title is used to identify the layout
74
046ae904 75 fQATask = 0 ;
76 fTreeQA = 0 ;
77 fDebug = 0 ;
e4d04cf1 78 fHighCharge = 8.2 ; // adjusted for a high gain range of 5.12 GeV (10 bits)
79 fHighGain = 6.64 ;
80 fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits)
81 fLowGainOffset = GetGeometry()->GetNModules() + 1 ;
82 // offset added to the module id to distinguish high and low gain data
6b87d0dd 83}
fa7cce36 84
0ce0b56f 85//____________________________________________________________________________
7b326aac 86AliPHOS::~AliPHOS()
87{
0ce0b56f 88}
89
780fda6d 90//____________________________________________________________________________
91void AliPHOS::Copy(AliPHOS & phos)
92{
7f78a025 93 // copy method to be used byy the cpy ctor
780fda6d 94 TObject::Copy(phos) ;
95 // fQATask = AliPHOSQAChecker::Copy(*(phos.fQATask)) ;
96 phos.fTreeQA = fTreeQA->CloneTree() ;
97}
98
487d23e3 99//____________________________________________________________________________
100AliDigitizer* AliPHOS::CreateDigitizer(AliRunDigitizer* manager) const
101{
102 return new AliPHOSDigitizer(manager);
103}
104
d15a28e7 105//____________________________________________________________________________
fe4da5cc 106void AliPHOS::CreateMaterials()
107{
b2a60966 108 // Definitions of materials to build PHOS and associated tracking media.
109 // media number in idtmed are 699 to 798.
fe4da5cc 110
d15a28e7 111 // --- The PbWO4 crystals ---
92862013 112 Float_t aX[3] = {207.19, 183.85, 16.0} ;
113 Float_t zX[3] = {82.0, 74.0, 8.0} ;
114 Float_t wX[3] = {1.0, 1.0, 4.0} ;
115 Float_t dX = 8.28 ;
fe4da5cc 116
92862013 117 AliMixture(0, "PbWO4$", aX, zX, dX, -3, wX) ;
fe4da5cc 118
fe4da5cc 119
d15a28e7 120 // --- The polysterene scintillator (CH) ---
92862013 121 Float_t aP[2] = {12.011, 1.00794} ;
122 Float_t zP[2] = {6.0, 1.0} ;
123 Float_t wP[2] = {1.0, 1.0} ;
124 Float_t dP = 1.032 ;
fe4da5cc 125
92862013 126 AliMixture(1, "Polystyrene$", aP, zP, dP, -2, wP) ;
fe4da5cc 127
d15a28e7 128 // --- Aluminium ---
129 AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
130 // --- Absorption length is ignored ^
fe4da5cc 131
d15a28e7 132 // --- Tyvek (CnH2n) ---
92862013 133 Float_t aT[2] = {12.011, 1.00794} ;
134 Float_t zT[2] = {6.0, 1.0} ;
135 Float_t wT[2] = {1.0, 2.0} ;
136 Float_t dT = 0.331 ;
fe4da5cc 137
92862013 138 AliMixture(3, "Tyvek$", aT, zT, dT, -2, wT) ;
fe4da5cc 139
d15a28e7 140 // --- Polystyrene foam ---
92862013 141 Float_t aF[2] = {12.011, 1.00794} ;
142 Float_t zF[2] = {6.0, 1.0} ;
143 Float_t wF[2] = {1.0, 1.0} ;
144 Float_t dF = 0.12 ;
fe4da5cc 145
92862013 146 AliMixture(4, "Foam$", aF, zF, dF, -2, wF) ;
fe4da5cc 147
d15a28e7 148 // --- Titanium ---
92862013 149 Float_t aTIT[3] = {47.88, 26.98, 54.94} ;
150 Float_t zTIT[3] = {22.0, 13.0, 25.0} ;
151 Float_t wTIT[3] = {69.0, 6.0, 1.0} ;
152 Float_t dTIT = 4.5 ;
fe4da5cc 153
92862013 154 AliMixture(5, "Titanium$", aTIT, zTIT, dTIT, -3, wTIT);
fe4da5cc 155
d15a28e7 156 // --- Silicon ---
157 AliMaterial(6, "Si$", 28.0855, 14., 2.33, 9.36, 42.3, 0, 0) ;
fe4da5cc 158
fe4da5cc 159
fe4da5cc 160
d15a28e7 161 // --- Foam thermo insulation ---
92862013 162 Float_t aTI[2] = {12.011, 1.00794} ;
163 Float_t zTI[2] = {6.0, 1.0} ;
164 Float_t wTI[2] = {1.0, 1.0} ;
85218d13 165 Float_t dTI = 0.04 ;
fe4da5cc 166
92862013 167 AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ;
fe4da5cc 168
d15a28e7 169 // --- Textolitn ---
92862013 170 Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ;
171 Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ;
172 Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ;
173 Float_t dTX = 1.75 ;
fe4da5cc 174
92862013 175 AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ;
fe4da5cc 176
d15a28e7 177 //--- FR4 ---
92862013 178 Float_t aFR[3] = {28.0855, 15.9994, 17.749} ;
179 Float_t zFR[3] = {14., 8., 8.875} ;
180 Float_t wFR[3] = {.28, .32, .4} ;
181 Float_t dFR = 1.8 ;
fe4da5cc 182
92862013 183 AliMixture(9, "FR4$", aFR, zFR, dFR, -3, wFR) ;
fe4da5cc 184
d15a28e7 185 // --- The Composite Material for micromegas (so far polyetylene) ---
92862013 186 Float_t aCM[2] = {12.01, 1.} ;
187 Float_t zCM[2] = {6., 1.} ;
188 Float_t wCM[2] = {1., 2.} ;
189 Float_t dCM = 0.935 ;
fe4da5cc 190
92862013 191 AliMixture(10, "Compo Mat$", aCM, zCM, dCM, -2, wCM) ;
fe4da5cc 192
d15a28e7 193 // --- Copper ---
194 AliMaterial(11, "Cu$", 63.546, 29, 8.96, 1.43, 14.8, 0, 0) ;
195
196 // --- G10 : Printed Circuit material ---
92862013 197 Float_t aG10[4] = { 12., 1., 16., 28.} ;
198 Float_t zG10[4] = { 6., 1., 8., 14.} ;
199 Float_t wG10[4] = { .259, .288, .248, .205} ;
200 Float_t dG10 = 1.7 ;
d15a28e7 201
92862013 202 AliMixture(12, "G10$", aG10, zG10, dG10, -4, wG10);
fe4da5cc 203
d15a28e7 204 // --- Lead ---
205 AliMaterial(13, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
fe4da5cc 206
d15a28e7 207 // --- The gas mixture ---
208 // Co2
92862013 209 Float_t aCO[2] = {12.0, 16.0} ;
210 Float_t zCO[2] = {6.0, 8.0} ;
211 Float_t wCO[2] = {1.0, 2.0} ;
212 Float_t dCO = 0.001977 ;
fe4da5cc 213
92862013 214 AliMixture(14, "CO2$", aCO, zCO, dCO, -2, wCO);
fe4da5cc 215
d15a28e7 216 // Ar
92862013 217 Float_t dAr = 0.001782 ;
218 AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ;
d15a28e7 219
220 // ArCo2
00d6d986 221 Char_t namate[21]="";
92862013 222 Float_t aGM[2] ;
223 Float_t zGM[2] ;
224 Float_t wGM[2] ;
225 Float_t dGM ;
fe4da5cc 226
92862013 227 Float_t absL, radL, density ;
d15a28e7 228 Float_t buf[1] ;
229 Int_t nbuf ;
bc9ab547 230
92862013 231 gMC->Gfmate((*fIdmate)[15], namate, aGM[0], zGM[0], density, radL, absL, buf, nbuf) ; // Get properties of Ar
232 gMC->Gfmate((*fIdmate)[14], namate, aGM[1], zGM[1], density, radL, absL, buf, nbuf) ; // Get properties of CO2
bc9ab547 233
fe4da5cc 234
d15a28e7 235 // Create gas mixture
fe4da5cc 236
92862013 237 Float_t arContent = 0.80 ; // Ar-content of the Ar/CO2-mixture (80% / 20%)
d15a28e7 238
92862013 239 wGM[0] = arContent;
240 wGM[1] = 1. - arContent ;
241 dGM = wGM[0] * dAr + wGM[1] * dCO;
fe4da5cc 242
a7262d8e 243
92862013 244 AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ;
fe4da5cc 245
a530ba0a 246 // --- Stainless steel (let it be pure iron) ---
247 AliMaterial(17, "Steel$", 55.845, 26, 7.87, 1.76, 0., 0, 0) ;
85218d13 248
249
250 // --- Fiberglass ---
251 Float_t aFG[4] = {16.0, 28.09, 12.011, 1.00794} ;
252 Float_t zFG[4] = {8.0, 14.0, 6.0, 1.0} ;
253 Float_t wFG[4] = {292.0, 68.0, 462.0, 736.0} ;
254 Float_t dFG = 1.9 ;
255
256 AliMixture(18, "Fibergla$", aFG, zFG, dFG, -4, wFG) ;
257
258 // --- Cables in Air box ---
259 // SERVICES
260
261 Float_t aCA[4] = { 1.,12.,55.8,63.5 };
262 Float_t zCA[4] = { 1.,6.,26.,29. };
263 Float_t wCA[4] = { .014,.086,.42,.48 };
264 Float_t dCA = 0.8 ; //this density is raw estimation, if you know better - correct
265
266 AliMixture(19, "Cables $", aCA, zCA, dCA, -4, wCA) ;
267
268
d15a28e7 269 // --- Air ---
a7262d8e 270 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
271 Float_t zAir[4]={6.,7.,8.,18.};
272 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
273 Float_t dAir = 1.20479E-3;
d15a28e7 274
a7262d8e 275 AliMixture(99, "Air$", aAir, zAir, dAir, 4, wAir) ;
276
d15a28e7 277 // DEFINITION OF THE TRACKING MEDIA
fe4da5cc 278
d15a28e7 279 // for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100]
280 Int_t * idtmed = fIdtmed->GetArray() - 699 ;
92862013 281 Int_t isxfld = gAlice->Field()->Integ() ;
282 Float_t sxmgmx = gAlice->Field()->Max() ;
fe4da5cc 283
d15a28e7 284 // The scintillator of the calorimeter made of PBW04 -> idtmed[699]
285 AliMedium(0, "PHOS Xtal $", 0, 1,
92862013 286 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 287
d15a28e7 288 // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[700]
289 AliMedium(1, "CPV scint. $", 1, 1,
92862013 290 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 291
d15a28e7 292 // Various Aluminium parts made of Al -> idtmed[701]
293 AliMedium(2, "Al parts $", 2, 0,
92862013 294 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
fe4da5cc 295
d15a28e7 296 // The Tywek which wraps the calorimeter crystals -> idtmed[702]
297 AliMedium(3, "Tyvek wrapper$", 3, 0,
92862013 298 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
fe4da5cc 299
d15a28e7 300 // The Polystyrene foam around the calorimeter module -> idtmed[703]
301 AliMedium(4, "Polyst. foam $", 4, 0,
92862013 302 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 303
d15a28e7 304 // The Titanium around the calorimeter crystal -> idtmed[704]
305 AliMedium(5, "Titan. cover $", 5, 0,
92862013 306 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.0001, 0.0001, 0, 0) ;
fe4da5cc 307
d15a28e7 308 // The Silicon of the pin diode to read out the calorimeter crystal -> idtmed[705]
309 AliMedium(6, "Si PIN $", 6, 0,
7b326aac 310 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.01, 0.01, 0, 0) ;
fe4da5cc 311
d15a28e7 312 // The thermo insulating material of the box which contains the calorimeter module -> idtmed[706]
313 AliMedium(7, "Thermo Insul.$", 7, 0,
92862013 314 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 315
d15a28e7 316 // The Textolit which makes up the box which contains the calorimeter module -> idtmed[707]
317 AliMedium(8, "Textolit $", 8, 0,
92862013 318 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 319
d15a28e7 320 // FR4: The Plastic which makes up the frame of micromegas -> idtmed[708]
321 AliMedium(9, "FR4 $", 9, 0,
92862013 322 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
fe4da5cc 323
fe4da5cc 324
d15a28e7 325 // The Composite Material for micromegas -> idtmed[709]
326 AliMedium(10, "CompoMat $", 10, 0,
92862013 327 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 328
d15a28e7 329 // Copper -> idtmed[710]
330 AliMedium(11, "Copper $", 11, 0,
92862013 331 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
fe4da5cc 332
d15a28e7 333 // G10: Printed Circuit material -> idtmed[711]
334
335 AliMedium(12, "G10 $", 12, 0,
92862013 336 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
fe4da5cc 337
d15a28e7 338 // The Lead -> idtmed[712]
339
340 AliMedium(13, "Lead $", 13, 0,
92862013 341 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 342
d15a28e7 343 // The gas mixture: ArCo2 -> idtmed[715]
344
345 AliMedium(16, "ArCo2 $", 16, 1,
92862013 346 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
d15a28e7 347
a530ba0a 348 // Stainless steel -> idtmed[716]
349 AliMedium(17, "Steel $", 17, 0,
350 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
351
85218d13 352 // Fibergalss -> idtmed[717]
353 AliMedium(18, "Fiberglass$", 18, 0,
354 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
355
356 // Cables in air -> idtmed[718]
357 AliMedium(19, "Cables $", 19, 0,
358 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
359
d15a28e7 360 // Air -> idtmed[798]
361 AliMedium(99, "Air $", 99, 0,
92862013 362 isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
fe4da5cc 363
d15a28e7 364 // --- Set decent energy thresholds for gamma and electron tracking
fe4da5cc 365
d15a28e7 366 // Tracking threshold for photons and electrons in the scintillator crystal
367 gMC->Gstpar(idtmed[699], "CUTGAM",0.5E-4) ;
368 gMC->Gstpar(idtmed[699], "CUTELE",1.0E-4) ;
9f616d61 369
d15a28e7 370 // --- Generate explicitly delta rays in the titan cover ---
371 gMC->Gstpar(idtmed[704], "LOSS",3.) ;
372 gMC->Gstpar(idtmed[704], "DRAY",1.) ;
d15a28e7 373 // --- and in aluminium parts ---
374 gMC->Gstpar(idtmed[701], "LOSS",3.) ;
375 gMC->Gstpar(idtmed[701], "DRAY",1.) ;
92862013 376 // --- and in PIN diode
377 gMC->Gstpar(idtmed[705], "LOSS",3) ;
378 gMC->Gstpar(idtmed[705], "DRAY",1) ;
379 // --- and in the passive convertor
380 gMC->Gstpar(idtmed[712], "LOSS",3) ;
381 gMC->Gstpar(idtmed[712], "DRAY",1) ;
382 // Tracking threshold for photons and electrons in the gas ArC02
b7101219 383 gMC->Gstpar(idtmed[715], "CUTGAM",1.E-5) ;
384 gMC->Gstpar(idtmed[715], "CUTELE",1.E-5) ;
385 gMC->Gstpar(idtmed[715], "CUTNEU",1.E-5) ;
386 gMC->Gstpar(idtmed[715], "CUTHAD",1.E-5) ;
387 gMC->Gstpar(idtmed[715], "CUTMUO",1.E-5) ;
388 gMC->Gstpar(idtmed[715], "BCUTE",1.E-5) ;
389 gMC->Gstpar(idtmed[715], "BCUTM",1.E-5) ;
390 gMC->Gstpar(idtmed[715], "DCUTE",1.E-5) ;
391 gMC->Gstpar(idtmed[715], "DCUTM",1.E-5) ;
392 gMC->Gstpar(idtmed[715], "PPCUTM",1.E-5) ;
9f616d61 393 gMC->Gstpar(idtmed[715], "LOSS",2.) ;
394 gMC->Gstpar(idtmed[715], "DRAY",0.) ;
395 gMC->Gstpar(idtmed[715], "STRA",2.) ;
396
0c409cb2 397}
a532e9d8 398
65792ca0 399//____________________________________________________________________________
400void AliPHOS::Digits2Raw()
401{
402// convert digits of the current event to raw data
e4d04cf1 403
404 AliPHOSLoader * loader = dynamic_cast<AliPHOSLoader*>(fLoader) ;
65792ca0 405
406 // get the digits
e4d04cf1 407 loader->LoadDigits();
408 TClonesArray* digits = loader->Digits() ;
e9a5efdf 409
65792ca0 410 if (!digits) {
e9a5efdf 411 Error("Digits2Raw", "no digits found !");
65792ca0 412 return;
413 }
414
e4d04cf1 415 // get the digitizer
416 loader->LoadDigitizer();
417 AliPHOSDigitizer * digitizer = dynamic_cast<AliPHOSDigitizer *>(loader->Digitizer()) ;
418
65792ca0 419 // get the geometry
e4d04cf1 420 AliPHOSGeometry* geom = GetGeometry();
65792ca0 421 if (!geom) {
e9a5efdf 422 Error("Digits2Raw", "no geometry found !");
65792ca0 423 return;
424 }
425
426 // some digitization constants
046ae904 427 const Int_t kDDLOffset = 0x600; // assigned to PHOS
e4d04cf1 428 const Int_t kThreshold = 1; // skip digits below this threshold
65792ca0 429
430 AliAltroBuffer* buffer = NULL;
431 Int_t prevDDL = -1;
046ae904 432 Int_t adcValuesLow[fkTimeBins];
433 Int_t adcValuesHigh[fkTimeBins];
65792ca0 434
435 // loop over digits (assume ordered digits)
436 for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) {
e4d04cf1 437 AliPHOSDigit* digit = dynamic_cast<AliPHOSDigit *>(digits->At(iDigit)) ;
e9a5efdf 438 if (digit->GetAmp() < kThreshold)
439 continue;
65792ca0 440 Int_t relId[4];
441 geom->AbsToRelNumbering(digit->GetId(), relId);
442 Int_t module = relId[0];
e9a5efdf 443
444 // Begin FIXME
445 if (relId[1] != 0)
446 continue; // ignore digits from CPV
447 // End FIXME
448
449 // PHOS EMCA has 4 DDL per module. Splitting is done based on the row number
65792ca0 450 Int_t iDDL = 4 * (module - 1) + (4 * (relId[2] - 1)) / geom->GetNPhi();
451
452 // new DDL
453 if (iDDL != prevDDL) {
454 // write real header and close previous file
455 if (buffer) {
456 buffer->Flush();
457 buffer->WriteDataHeader(kFALSE, kFALSE);
458 delete buffer;
459 }
460
461 // open new file and write dummy header
e9a5efdf 462 TString fileName("PHOS_") ;
463 fileName += (iDDL + kDDLOffset) ;
464 fileName += ".ddl" ;
465 buffer = new AliAltroBuffer(fileName.Data(), 1);
65792ca0 466 buffer->WriteDataHeader(kTRUE, kFALSE); //Dummy;
467
468 prevDDL = iDDL;
469 }
470
471 // out of time range signal (?)
e4d04cf1 472 if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
65792ca0 473 buffer->FillBuffer(digit->GetAmp());
e4d04cf1 474 buffer->FillBuffer(GetRawFormatTimeBins() ); // time bin
475 buffer->FillBuffer(3); // bunch length
65792ca0 476 buffer->WriteTrailer(3, relId[3], relId[2], module); // trailer
477
e4d04cf1 478 // calculate the time response function
65792ca0 479 } else {
e4d04cf1 480 Double_t energy = 0 ;
481 if ( digit->GetId() <= geom->GetNModules() * geom->GetNCristalsInModule())
482 energy = digit->GetAmp() * digitizer->GetEMCchannel() + digitizer->GetEMCpedestal() ;
483 else
484 energy = digit->GetAmp() * digitizer->GetCPVchannel() + digitizer->GetCPVpedestal() ;
485
486 RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
046ae904 487
65792ca0 488 buffer->WriteChannel(relId[3], relId[2], module,
e4d04cf1 489 GetRawFormatTimeBins(), adcValuesHigh, kThreshold);
490 buffer->WriteChannel(relId[3], relId[2], module + fLowGainOffset,
491 GetRawFormatTimeBins(), adcValuesLow, kThreshold);
65792ca0 492 }
493 }
046ae904 494
65792ca0 495 // write real header and close last file
496 if (buffer) {
497 buffer->Flush();
498 buffer->WriteDataHeader(kFALSE, kFALSE);
499 delete buffer;
500 }
046ae904 501
e4d04cf1 502 loader->UnloadDigits();
e9a5efdf 503}
504
505//____________________________________________________________________________
506void AliPHOS::Hits2SDigits()
507{
508// create summable digits
509
510 AliPHOSSDigitizer* phosDigitizer =
511 new AliPHOSSDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
512 phosDigitizer->SetEventRange(0, -1) ; // do all the events
513 phosDigitizer->ExecuteTask("all") ;
514}
515
516//____________________________________________________________________________
517AliLoader* AliPHOS::MakeLoader(const char* topfoldername)
518{
519//different behaviour than standard (singleton getter)
520// --> to be discussed and made eventually coherent
521 fLoader = new AliPHOSLoader(GetName(),topfoldername);
522 return fLoader;
523}
524
046ae904 525//__________________________________________________________________
e4d04cf1 526Double_t AliPHOS::RawResponseFunction(Double_t *x, Double_t *par)
046ae904 527{
528 // Shape of the electronics raw reponse:
e4d04cf1 529 // It is a semi-gaussian, 2nd order Gamma function of the general form
530 // v(t) = n**n * Q * A**n / C *(t/tp)**n * exp(-n * t/tp) with
531 // tp : peaking time par[0]
532 // n : order of the function
533 // C : integrating capacitor in the preamplifier
534 // A : open loop gain of the preamplifier
535 // Q : the total APD charge to be measured Q = C * energy
046ae904 536
e4d04cf1 537 Double_t signal ;
538 Double_t xx = x[0] - ( fgTimeTrigger + par[3] ) ;
539
540 if (xx < 0 || xx > fgTimeMax)
541 signal = 0. ;
542 else {
543 Double_t fac = par[0] * TMath::Power(fgOrder, fgOrder) * TMath::Power(par[1], fgOrder) / fgCapa ;
544 signal = fac * par[2] * TMath::Power(xx / fgTimePeak, fgOrder) * TMath::Exp(-fgOrder * (xx / fgTimePeak)) ;
545 }
546 return signal ;
547}
548
549//__________________________________________________________________
550Double_t AliPHOS::RawResponseFunctionMax(Double_t charge, Double_t gain)
551{
552 return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
553 / ( fgCapa * TMath::Exp(fgOrder) ) );
554
046ae904 555}
556
557//__________________________________________________________________
e4d04cf1 558Bool_t AliPHOS::RawSampledResponse(const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const
046ae904 559{
560 // for a start time dtime and an amplitude damp given by digit,
e4d04cf1 561 // calculates the raw sampled response AliPHOS::RawResponseFunction
046ae904 562
563 const Int_t kRawSignalOverflow = 0x3FF ;
e4d04cf1 564 Bool_t lowGain = kFALSE ;
565
566 TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
567
568 for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) {
569 signalF.SetParameter(0, GetRawFormatHighCharge() ) ;
570 signalF.SetParameter(1, GetRawFormatHighGain() ) ;
571 signalF.SetParameter(2, damp) ;
572 signalF.SetParameter(3, dtime) ;
573 Double_t time = iTime * GetRawFormatTimeMax() / GetRawFormatTimeBins() ;
574 Double_t signal = signalF.Eval(time) ;
575 if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow ){ // larger than 10 bits
576 signal = kRawSignalOverflow ;
577 lowGain = kTRUE ;
578 }
579 adcH[iTime] = static_cast<Int_t>(signal + 0.5) ;
580
581 signalF.SetParameter(0, GetRawFormatLowCharge() ) ;
582 signalF.SetParameter(1, GetRawFormatLowGain() ) ;
583 signal = signalF.Eval(time) ;
584 if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow) // larger than 10 bits
585 signal = kRawSignalOverflow ;
586 adcL[iTime] = static_cast<Int_t>(0.5 + signal ) ;
587
046ae904 588 }
e4d04cf1 589 return lowGain ;
046ae904 590}
591
e9a5efdf 592//____________________________________________________________________________
593void AliPHOS::SetTreeAddress()
594{
595 // Links Hits in the Tree to Hits array
596 TBranch *branch;
597 char branchname[20];
598 sprintf(branchname,"%s",GetName());
599
600 // Branch address for hit tree
601 TTree *treeH = TreeH();
602 if (treeH) {
603 branch = treeH->GetBranch(branchname);
604 if (branch)
605 {
606 if (fHits == 0x0) fHits= new TClonesArray("AliPHOSHit",1000);
607 //Info("SetTreeAddress","<%s> Setting Hits Address",GetName());
608 branch->SetAddress(&fHits);
609 }
610 }
611}
612
613//____________________________________________________________________________
614void AliPHOS::WriteQA()
615{
616
617 // Make TreeQA in the output file.
618
619 if(fTreeQA == 0)
620 fTreeQA = new TTree("TreeQA", "QA Alarms") ;
621 // Create Alarms branches
622 Int_t bufferSize = 32000 ;
623 Int_t splitlevel = 0 ;
624
625 TFolder* topfold = GetLoader()->GetTopFolder(); //get top aliroot folder; skowron
626 TString phosqafn(AliConfig::Instance()->GetQAFolderName()+"/"); //get name of QAaut folder relative to top event; skowron
627 phosqafn+=GetName(); //hard wired string!!! add the detector name to the pathname; skowron
628 TFolder * alarmsF = (TFolder*)topfold->FindObjectAny(phosqafn); //get the folder
629
630 if (alarmsF == 0x0)
631 {
632 Error("WriteQA","Can not find folder with qa alarms");
633 return;
634 }
635 TString branchName(alarmsF->GetName());
636 TBranch * alarmsBranch = fTreeQA->Branch(branchName,"TFolder", &alarmsF, bufferSize, splitlevel);
637 TString branchTitle = branchName + " QA alarms" ;
638 alarmsBranch->SetTitle(branchTitle);
639 alarmsBranch->Fill() ;
640
641 //fTreeQA->Fill() ;
65792ca0 642}
643