Mixture ArCO2 is corrected
[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 *
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 **************************************************************************/
b2a60966 15/* $Id$ */
ffcecca6 16/* History of cvs commits:
17 *
18 * $Log$
a004143a 19 * Revision 1.90 2005/06/17 07:39:07 hristov
20 * Removing GetDebug and SetDebug from AliRun and AliModule. Using AliLog for the messages
21 *
4951e003 22 * Revision 1.89 2005/05/28 12:10:07 schutz
23 * Copy constructor is corrected (by T.P.)
24 *
ffcecca6 25 */
b2a60966 26
d15a28e7 27//_________________________________________________________________________
b2a60966 28// Base Class for PHOS description:
29// PHOS consists of a PbWO4 calorimeter (EMCA) and a gazeous charged
30// particles detector (CPV or PPSD).
31// The only provided method here is CreateMaterials,
32// which defines the materials common to all PHOS versions.
33//
34//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
d15a28e7 35//////////////////////////////////////////////////////////////////////////////
e84be1eb 36
fdeead01 37
fe4da5cc 38// --- ROOT system ---
2ab0c725 39class TFile;
88cb7938 40#include <TFolder.h>
88cb7938 41#include <TTree.h>
42#include <TVirtualMC.h>
046ae904 43#include <TH1F.h>
44#include <TF1.h>
e9a5efdf 45#include <TRandom.h>
fe4da5cc 46
47// --- Standard library ---
d15a28e7 48
548f0134 49// --- AliRoot header files ---
94de3818 50#include "AliMagF.h"
88cb7938 51#include "AliPHOS.h"
e9a5efdf 52#include "AliPHOSGetter.h"
85a5290f 53#include "AliRun.h"
54#include "AliPHOSDigitizer.h"
55#include "AliPHOSSDigitizer.h"
65792ca0 56#include "AliPHOSDigit.h"
57#include "AliAltroBuffer.h"
e4d04cf1 58#include "AliLog.h"
7f78a025 59
fe4da5cc 60ClassImp(AliPHOS)
e4d04cf1 61
62Double_t AliPHOS::fgCapa = 1.; // 1pF
63Int_t AliPHOS::fgOrder = 2 ;
64Double_t AliPHOS::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins
65Double_t AliPHOS::fgTimePeak = 4.1E-6 ; // 4 micro seconds
66Double_t AliPHOS::fgTimeTrigger = 100E-9 ; // 100ns, just for a reference
e4d04cf1 67
0ce0b56f 68//____________________________________________________________________________
046ae904 69 AliPHOS:: AliPHOS() : AliDetector()
6b87d0dd 70{
a532e9d8 71 // Default ctor
046ae904 72 fName = "PHOS" ;
e4d04cf1 73
6b87d0dd 74}
fa7cce36 75
6b87d0dd 76//____________________________________________________________________________
046ae904 77AliPHOS::AliPHOS(const char* name, const char* title): AliDetector(name, title)
6b87d0dd 78{
a532e9d8 79 // ctor : title is used to identify the layout
80
e4d04cf1 81 fHighCharge = 8.2 ; // adjusted for a high gain range of 5.12 GeV (10 bits)
82 fHighGain = 6.64 ;
83 fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits)
84 fLowGainOffset = GetGeometry()->GetNModules() + 1 ;
85 // offset added to the module id to distinguish high and low gain data
6b87d0dd 86}
fa7cce36 87
0ce0b56f 88//____________________________________________________________________________
7b326aac 89AliPHOS::~AliPHOS()
90{
0ce0b56f 91}
92
780fda6d 93//____________________________________________________________________________
ffcecca6 94void AliPHOS::Copy(TObject &obj)const
780fda6d 95{
7f78a025 96 // copy method to be used byy the cpy ctor
ffcecca6 97 TObject::Copy(obj);
98
99 AliPHOS &phos = static_cast<AliPHOS &>(obj);
100
351dd634 101 phos.fHighCharge = fHighCharge ;
102 phos.fHighGain = fHighGain ;
103 phos.fHighLowGainFactor = fHighLowGainFactor ;
104 phos.fLowGainOffset = fLowGainOffset;
780fda6d 105}
106
487d23e3 107//____________________________________________________________________________
108AliDigitizer* AliPHOS::CreateDigitizer(AliRunDigitizer* manager) const
109{
110 return new AliPHOSDigitizer(manager);
111}
112
d15a28e7 113//____________________________________________________________________________
fe4da5cc 114void AliPHOS::CreateMaterials()
115{
b2a60966 116 // Definitions of materials to build PHOS and associated tracking media.
117 // media number in idtmed are 699 to 798.
fe4da5cc 118
d15a28e7 119 // --- The PbWO4 crystals ---
92862013 120 Float_t aX[3] = {207.19, 183.85, 16.0} ;
121 Float_t zX[3] = {82.0, 74.0, 8.0} ;
122 Float_t wX[3] = {1.0, 1.0, 4.0} ;
123 Float_t dX = 8.28 ;
fe4da5cc 124
92862013 125 AliMixture(0, "PbWO4$", aX, zX, dX, -3, wX) ;
fe4da5cc 126
fe4da5cc 127
d15a28e7 128 // --- The polysterene scintillator (CH) ---
92862013 129 Float_t aP[2] = {12.011, 1.00794} ;
130 Float_t zP[2] = {6.0, 1.0} ;
131 Float_t wP[2] = {1.0, 1.0} ;
132 Float_t dP = 1.032 ;
fe4da5cc 133
92862013 134 AliMixture(1, "Polystyrene$", aP, zP, dP, -2, wP) ;
fe4da5cc 135
d15a28e7 136 // --- Aluminium ---
137 AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
138 // --- Absorption length is ignored ^
fe4da5cc 139
d15a28e7 140 // --- Tyvek (CnH2n) ---
92862013 141 Float_t aT[2] = {12.011, 1.00794} ;
142 Float_t zT[2] = {6.0, 1.0} ;
143 Float_t wT[2] = {1.0, 2.0} ;
144 Float_t dT = 0.331 ;
fe4da5cc 145
92862013 146 AliMixture(3, "Tyvek$", aT, zT, dT, -2, wT) ;
fe4da5cc 147
d15a28e7 148 // --- Polystyrene foam ---
92862013 149 Float_t aF[2] = {12.011, 1.00794} ;
150 Float_t zF[2] = {6.0, 1.0} ;
151 Float_t wF[2] = {1.0, 1.0} ;
152 Float_t dF = 0.12 ;
fe4da5cc 153
92862013 154 AliMixture(4, "Foam$", aF, zF, dF, -2, wF) ;
fe4da5cc 155
d15a28e7 156 // --- Titanium ---
92862013 157 Float_t aTIT[3] = {47.88, 26.98, 54.94} ;
158 Float_t zTIT[3] = {22.0, 13.0, 25.0} ;
159 Float_t wTIT[3] = {69.0, 6.0, 1.0} ;
160 Float_t dTIT = 4.5 ;
fe4da5cc 161
92862013 162 AliMixture(5, "Titanium$", aTIT, zTIT, dTIT, -3, wTIT);
fe4da5cc 163
d15a28e7 164 // --- Silicon ---
165 AliMaterial(6, "Si$", 28.0855, 14., 2.33, 9.36, 42.3, 0, 0) ;
fe4da5cc 166
fe4da5cc 167
fe4da5cc 168
d15a28e7 169 // --- Foam thermo insulation ---
92862013 170 Float_t aTI[2] = {12.011, 1.00794} ;
171 Float_t zTI[2] = {6.0, 1.0} ;
172 Float_t wTI[2] = {1.0, 1.0} ;
85218d13 173 Float_t dTI = 0.04 ;
fe4da5cc 174
92862013 175 AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ;
fe4da5cc 176
74e56d72 177 // --- Textolith ---
92862013 178 Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ;
179 Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ;
180 Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ;
181 Float_t dTX = 1.75 ;
fe4da5cc 182
92862013 183 AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ;
fe4da5cc 184
d15a28e7 185 //--- FR4 ---
74e56d72 186 Float_t aFR[4] = {16.0, 28.09, 12.011, 1.00794} ;
187 Float_t zFR[4] = {8.0, 14.0, 6.0, 1.0} ;
188 Float_t wFR[4] = {292.0, 68.0, 462.0, 736.0} ;
92862013 189 Float_t dFR = 1.8 ;
fe4da5cc 190
74e56d72 191 AliMixture(9, "FR4$", aFR, zFR, dFR, -4, wFR) ;
fe4da5cc 192
d15a28e7 193 // --- The Composite Material for micromegas (so far polyetylene) ---
92862013 194 Float_t aCM[2] = {12.01, 1.} ;
195 Float_t zCM[2] = {6., 1.} ;
196 Float_t wCM[2] = {1., 2.} ;
197 Float_t dCM = 0.935 ;
fe4da5cc 198
92862013 199 AliMixture(10, "Compo Mat$", aCM, zCM, dCM, -2, wCM) ;
fe4da5cc 200
d15a28e7 201 // --- Copper ---
202 AliMaterial(11, "Cu$", 63.546, 29, 8.96, 1.43, 14.8, 0, 0) ;
203
204 // --- G10 : Printed Circuit material ---
92862013 205 Float_t aG10[4] = { 12., 1., 16., 28.} ;
206 Float_t zG10[4] = { 6., 1., 8., 14.} ;
207 Float_t wG10[4] = { .259, .288, .248, .205} ;
208 Float_t dG10 = 1.7 ;
d15a28e7 209
92862013 210 AliMixture(12, "G10$", aG10, zG10, dG10, -4, wG10);
fe4da5cc 211
d15a28e7 212 // --- Lead ---
213 AliMaterial(13, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
fe4da5cc 214
d15a28e7 215 // --- The gas mixture ---
216 // Co2
92862013 217 Float_t aCO[2] = {12.0, 16.0} ;
218 Float_t zCO[2] = {6.0, 8.0} ;
219 Float_t wCO[2] = {1.0, 2.0} ;
220 Float_t dCO = 0.001977 ;
fe4da5cc 221
92862013 222 AliMixture(14, "CO2$", aCO, zCO, dCO, -2, wCO);
fe4da5cc 223
d15a28e7 224 // Ar
92862013 225 Float_t dAr = 0.001782 ;
226 AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ;
d15a28e7 227
a004143a 228 // Ar+CO2 Mixture (80% / 20%)
229 Float_t arContent = 0.80 ; // Ar-content of the ArCO2-mixture
230 Float_t aArCO[3] = {39.948, 12.0, 16.0} ;
231 Float_t zArCO[3] = {18.0 , 6.0, 8.0} ;
232 Float_t wArCO[3];
233 wArCO[0] = arContent;
234 wArCO[1] = (1-arContent)*1;
235 wArCO[2] = (1-arContent)*2;
236 Float_t dArCO = arContent*dAr + (1-arContent)*dCO ;
237 AliMixture(16, "ArCO2$", aArCO, zArCO, dArCO, -3, wArCO) ;
fe4da5cc 238
a530ba0a 239 // --- Stainless steel (let it be pure iron) ---
240 AliMaterial(17, "Steel$", 55.845, 26, 7.87, 1.76, 0., 0, 0) ;
85218d13 241
242
243 // --- Fiberglass ---
244 Float_t aFG[4] = {16.0, 28.09, 12.011, 1.00794} ;
245 Float_t zFG[4] = {8.0, 14.0, 6.0, 1.0} ;
246 Float_t wFG[4] = {292.0, 68.0, 462.0, 736.0} ;
247 Float_t dFG = 1.9 ;
248
249 AliMixture(18, "Fibergla$", aFG, zFG, dFG, -4, wFG) ;
250
251 // --- Cables in Air box ---
252 // SERVICES
253
254 Float_t aCA[4] = { 1.,12.,55.8,63.5 };
255 Float_t zCA[4] = { 1.,6.,26.,29. };
256 Float_t wCA[4] = { .014,.086,.42,.48 };
257 Float_t dCA = 0.8 ; //this density is raw estimation, if you know better - correct
258
259 AliMixture(19, "Cables $", aCA, zCA, dCA, -4, wCA) ;
260
261
d15a28e7 262 // --- Air ---
a7262d8e 263 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
264 Float_t zAir[4]={6.,7.,8.,18.};
265 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
266 Float_t dAir = 1.20479E-3;
d15a28e7 267
a7262d8e 268 AliMixture(99, "Air$", aAir, zAir, dAir, 4, wAir) ;
269
d15a28e7 270 // DEFINITION OF THE TRACKING MEDIA
fe4da5cc 271
d15a28e7 272 // for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100]
273 Int_t * idtmed = fIdtmed->GetArray() - 699 ;
92862013 274 Int_t isxfld = gAlice->Field()->Integ() ;
275 Float_t sxmgmx = gAlice->Field()->Max() ;
fe4da5cc 276
d15a28e7 277 // The scintillator of the calorimeter made of PBW04 -> idtmed[699]
278 AliMedium(0, "PHOS Xtal $", 0, 1,
92862013 279 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 280
d15a28e7 281 // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[700]
282 AliMedium(1, "CPV scint. $", 1, 1,
92862013 283 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 284
d15a28e7 285 // Various Aluminium parts made of Al -> idtmed[701]
286 AliMedium(2, "Al parts $", 2, 0,
92862013 287 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
fe4da5cc 288
d15a28e7 289 // The Tywek which wraps the calorimeter crystals -> idtmed[702]
290 AliMedium(3, "Tyvek wrapper$", 3, 0,
92862013 291 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
fe4da5cc 292
d15a28e7 293 // The Polystyrene foam around the calorimeter module -> idtmed[703]
294 AliMedium(4, "Polyst. foam $", 4, 0,
92862013 295 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 296
d15a28e7 297 // The Titanium around the calorimeter crystal -> idtmed[704]
298 AliMedium(5, "Titan. cover $", 5, 0,
92862013 299 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.0001, 0.0001, 0, 0) ;
fe4da5cc 300
d15a28e7 301 // The Silicon of the pin diode to read out the calorimeter crystal -> idtmed[705]
302 AliMedium(6, "Si PIN $", 6, 0,
7b326aac 303 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.01, 0.01, 0, 0) ;
fe4da5cc 304
d15a28e7 305 // The thermo insulating material of the box which contains the calorimeter module -> idtmed[706]
306 AliMedium(7, "Thermo Insul.$", 7, 0,
92862013 307 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 308
d15a28e7 309 // The Textolit which makes up the box which contains the calorimeter module -> idtmed[707]
310 AliMedium(8, "Textolit $", 8, 0,
92862013 311 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 312
d15a28e7 313 // FR4: The Plastic which makes up the frame of micromegas -> idtmed[708]
314 AliMedium(9, "FR4 $", 9, 0,
92862013 315 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
fe4da5cc 316
fe4da5cc 317
d15a28e7 318 // The Composite Material for micromegas -> idtmed[709]
319 AliMedium(10, "CompoMat $", 10, 0,
92862013 320 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 321
d15a28e7 322 // Copper -> idtmed[710]
323 AliMedium(11, "Copper $", 11, 0,
92862013 324 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
fe4da5cc 325
d15a28e7 326 // G10: Printed Circuit material -> idtmed[711]
327
328 AliMedium(12, "G10 $", 12, 0,
92862013 329 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
fe4da5cc 330
d15a28e7 331 // The Lead -> idtmed[712]
332
333 AliMedium(13, "Lead $", 13, 0,
92862013 334 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
fe4da5cc 335
d15a28e7 336 // The gas mixture: ArCo2 -> idtmed[715]
337
338 AliMedium(16, "ArCo2 $", 16, 1,
92862013 339 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
d15a28e7 340
a530ba0a 341 // Stainless steel -> idtmed[716]
342 AliMedium(17, "Steel $", 17, 0,
343 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
344
85218d13 345 // Fibergalss -> idtmed[717]
346 AliMedium(18, "Fiberglass$", 18, 0,
347 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
348
349 // Cables in air -> idtmed[718]
350 AliMedium(19, "Cables $", 19, 0,
351 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
352
d15a28e7 353 // Air -> idtmed[798]
354 AliMedium(99, "Air $", 99, 0,
92862013 355 isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
fe4da5cc 356
d15a28e7 357 // --- Set decent energy thresholds for gamma and electron tracking
fe4da5cc 358
d15a28e7 359 // Tracking threshold for photons and electrons in the scintillator crystal
360 gMC->Gstpar(idtmed[699], "CUTGAM",0.5E-4) ;
361 gMC->Gstpar(idtmed[699], "CUTELE",1.0E-4) ;
9f616d61 362
d15a28e7 363 // --- Generate explicitly delta rays in the titan cover ---
364 gMC->Gstpar(idtmed[704], "LOSS",3.) ;
365 gMC->Gstpar(idtmed[704], "DRAY",1.) ;
d15a28e7 366 // --- and in aluminium parts ---
367 gMC->Gstpar(idtmed[701], "LOSS",3.) ;
368 gMC->Gstpar(idtmed[701], "DRAY",1.) ;
92862013 369 // --- and in PIN diode
370 gMC->Gstpar(idtmed[705], "LOSS",3) ;
371 gMC->Gstpar(idtmed[705], "DRAY",1) ;
372 // --- and in the passive convertor
373 gMC->Gstpar(idtmed[712], "LOSS",3) ;
374 gMC->Gstpar(idtmed[712], "DRAY",1) ;
375 // Tracking threshold for photons and electrons in the gas ArC02
b7101219 376 gMC->Gstpar(idtmed[715], "CUTGAM",1.E-5) ;
377 gMC->Gstpar(idtmed[715], "CUTELE",1.E-5) ;
378 gMC->Gstpar(idtmed[715], "CUTNEU",1.E-5) ;
379 gMC->Gstpar(idtmed[715], "CUTHAD",1.E-5) ;
380 gMC->Gstpar(idtmed[715], "CUTMUO",1.E-5) ;
381 gMC->Gstpar(idtmed[715], "BCUTE",1.E-5) ;
382 gMC->Gstpar(idtmed[715], "BCUTM",1.E-5) ;
383 gMC->Gstpar(idtmed[715], "DCUTE",1.E-5) ;
384 gMC->Gstpar(idtmed[715], "DCUTM",1.E-5) ;
385 gMC->Gstpar(idtmed[715], "PPCUTM",1.E-5) ;
9f616d61 386 gMC->Gstpar(idtmed[715], "LOSS",2.) ;
387 gMC->Gstpar(idtmed[715], "DRAY",0.) ;
388 gMC->Gstpar(idtmed[715], "STRA",2.) ;
389
0c409cb2 390}
a532e9d8 391
65792ca0 392//____________________________________________________________________________
393void AliPHOS::Digits2Raw()
394{
395// convert digits of the current event to raw data
e4d04cf1 396
397 AliPHOSLoader * loader = dynamic_cast<AliPHOSLoader*>(fLoader) ;
65792ca0 398
399 // get the digits
e4d04cf1 400 loader->LoadDigits();
401 TClonesArray* digits = loader->Digits() ;
e9a5efdf 402
65792ca0 403 if (!digits) {
351dd634 404 AliError(Form("No digits found !"));
65792ca0 405 return;
406 }
407
e4d04cf1 408 // get the digitizer
409 loader->LoadDigitizer();
410 AliPHOSDigitizer * digitizer = dynamic_cast<AliPHOSDigitizer *>(loader->Digitizer()) ;
411
65792ca0 412 // get the geometry
e4d04cf1 413 AliPHOSGeometry* geom = GetGeometry();
65792ca0 414 if (!geom) {
351dd634 415 AliError(Form("No geometry found !"));
65792ca0 416 return;
417 }
418
419 // some digitization constants
046ae904 420 const Int_t kDDLOffset = 0x600; // assigned to PHOS
e4d04cf1 421 const Int_t kThreshold = 1; // skip digits below this threshold
65792ca0 422
423 AliAltroBuffer* buffer = NULL;
424 Int_t prevDDL = -1;
046ae904 425 Int_t adcValuesLow[fkTimeBins];
426 Int_t adcValuesHigh[fkTimeBins];
65792ca0 427
428 // loop over digits (assume ordered digits)
429 for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) {
e4d04cf1 430 AliPHOSDigit* digit = dynamic_cast<AliPHOSDigit *>(digits->At(iDigit)) ;
e9a5efdf 431 if (digit->GetAmp() < kThreshold)
432 continue;
65792ca0 433 Int_t relId[4];
434 geom->AbsToRelNumbering(digit->GetId(), relId);
435 Int_t module = relId[0];
e9a5efdf 436
437 // Begin FIXME
438 if (relId[1] != 0)
439 continue; // ignore digits from CPV
440 // End FIXME
441
442 // PHOS EMCA has 4 DDL per module. Splitting is done based on the row number
65792ca0 443 Int_t iDDL = 4 * (module - 1) + (4 * (relId[2] - 1)) / geom->GetNPhi();
444
445 // new DDL
446 if (iDDL != prevDDL) {
447 // write real header and close previous file
448 if (buffer) {
449 buffer->Flush();
450 buffer->WriteDataHeader(kFALSE, kFALSE);
451 delete buffer;
452 }
453
454 // open new file and write dummy header
e9a5efdf 455 TString fileName("PHOS_") ;
456 fileName += (iDDL + kDDLOffset) ;
457 fileName += ".ddl" ;
458 buffer = new AliAltroBuffer(fileName.Data(), 1);
65792ca0 459 buffer->WriteDataHeader(kTRUE, kFALSE); //Dummy;
460
461 prevDDL = iDDL;
462 }
463
464 // out of time range signal (?)
e4d04cf1 465 if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
65792ca0 466 buffer->FillBuffer(digit->GetAmp());
e4d04cf1 467 buffer->FillBuffer(GetRawFormatTimeBins() ); // time bin
468 buffer->FillBuffer(3); // bunch length
65792ca0 469 buffer->WriteTrailer(3, relId[3], relId[2], module); // trailer
470
e4d04cf1 471 // calculate the time response function
65792ca0 472 } else {
e4d04cf1 473 Double_t energy = 0 ;
474 if ( digit->GetId() <= geom->GetNModules() * geom->GetNCristalsInModule())
475 energy = digit->GetAmp() * digitizer->GetEMCchannel() + digitizer->GetEMCpedestal() ;
476 else
477 energy = digit->GetAmp() * digitizer->GetCPVchannel() + digitizer->GetCPVpedestal() ;
478
addad4c9 479 Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
046ae904 480
addad4c9 481 if (lowgain)
482 buffer->WriteChannel(relId[3], relId[2], module + fLowGainOffset,
e4d04cf1 483 GetRawFormatTimeBins(), adcValuesLow, kThreshold);
addad4c9 484 else
485 buffer->WriteChannel(relId[3], relId[2], module,
486 GetRawFormatTimeBins(), adcValuesHigh, kThreshold);
487
65792ca0 488 }
489 }
046ae904 490
65792ca0 491 // write real header and close last file
492 if (buffer) {
493 buffer->Flush();
494 buffer->WriteDataHeader(kFALSE, kFALSE);
495 delete buffer;
496 }
046ae904 497
e4d04cf1 498 loader->UnloadDigits();
e9a5efdf 499}
500
501//____________________________________________________________________________
502void AliPHOS::Hits2SDigits()
503{
504// create summable digits
505
a1952ef7 506 AliPHOSSDigitizer phosDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
507 phosDigitizer.SetEventRange(0, -1) ; // do all the events
508 phosDigitizer.ExecuteTask("all") ;
e9a5efdf 509}
510
511//____________________________________________________________________________
512AliLoader* AliPHOS::MakeLoader(const char* topfoldername)
513{
514//different behaviour than standard (singleton getter)
515// --> to be discussed and made eventually coherent
516 fLoader = new AliPHOSLoader(GetName(),topfoldername);
517 return fLoader;
518}
519
046ae904 520//__________________________________________________________________
e4d04cf1 521Double_t AliPHOS::RawResponseFunction(Double_t *x, Double_t *par)
046ae904 522{
523 // Shape of the electronics raw reponse:
e4d04cf1 524 // It is a semi-gaussian, 2nd order Gamma function of the general form
525 // v(t) = n**n * Q * A**n / C *(t/tp)**n * exp(-n * t/tp) with
526 // tp : peaking time par[0]
527 // n : order of the function
528 // C : integrating capacitor in the preamplifier
529 // A : open loop gain of the preamplifier
530 // Q : the total APD charge to be measured Q = C * energy
046ae904 531
e4d04cf1 532 Double_t signal ;
533 Double_t xx = x[0] - ( fgTimeTrigger + par[3] ) ;
534
535 if (xx < 0 || xx > fgTimeMax)
536 signal = 0. ;
537 else {
538 Double_t fac = par[0] * TMath::Power(fgOrder, fgOrder) * TMath::Power(par[1], fgOrder) / fgCapa ;
539 signal = fac * par[2] * TMath::Power(xx / fgTimePeak, fgOrder) * TMath::Exp(-fgOrder * (xx / fgTimePeak)) ;
540 }
541 return signal ;
542}
543
544//__________________________________________________________________
545Double_t AliPHOS::RawResponseFunctionMax(Double_t charge, Double_t gain)
546{
547 return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
548 / ( fgCapa * TMath::Exp(fgOrder) ) );
549
046ae904 550}
551
552//__________________________________________________________________
e4d04cf1 553Bool_t AliPHOS::RawSampledResponse(const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const
046ae904 554{
555 // for a start time dtime and an amplitude damp given by digit,
e4d04cf1 556 // calculates the raw sampled response AliPHOS::RawResponseFunction
046ae904 557
558 const Int_t kRawSignalOverflow = 0x3FF ;
e4d04cf1 559 Bool_t lowGain = kFALSE ;
560
561 TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
562
563 for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) {
564 signalF.SetParameter(0, GetRawFormatHighCharge() ) ;
565 signalF.SetParameter(1, GetRawFormatHighGain() ) ;
566 signalF.SetParameter(2, damp) ;
567 signalF.SetParameter(3, dtime) ;
568 Double_t time = iTime * GetRawFormatTimeMax() / GetRawFormatTimeBins() ;
569 Double_t signal = signalF.Eval(time) ;
570 if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow ){ // larger than 10 bits
571 signal = kRawSignalOverflow ;
572 lowGain = kTRUE ;
573 }
574 adcH[iTime] = static_cast<Int_t>(signal + 0.5) ;
575
576 signalF.SetParameter(0, GetRawFormatLowCharge() ) ;
577 signalF.SetParameter(1, GetRawFormatLowGain() ) ;
578 signal = signalF.Eval(time) ;
579 if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow) // larger than 10 bits
580 signal = kRawSignalOverflow ;
581 adcL[iTime] = static_cast<Int_t>(0.5 + signal ) ;
582
046ae904 583 }
e4d04cf1 584 return lowGain ;
046ae904 585}
586
e9a5efdf 587//____________________________________________________________________________
588void AliPHOS::SetTreeAddress()
589{
590 // Links Hits in the Tree to Hits array
591 TBranch *branch;
592 char branchname[20];
593 sprintf(branchname,"%s",GetName());
e9a5efdf 594 // Branch address for hit tree
351dd634 595 TTree *treeH = TreeH();
e9a5efdf 596 if (treeH) {
597 branch = treeH->GetBranch(branchname);
598 if (branch)
599 {
600 if (fHits == 0x0) fHits= new TClonesArray("AliPHOSHit",1000);
351dd634 601 //AliInfo(Form("<%s> Setting Hits Address",GetName()));
e9a5efdf 602 branch->SetAddress(&fHits);
603 }
604 }
605}
606