Clean-up of include files
[u/mrichter/AliRoot.git] / ZDC / AliZDCDigitizer.cxx
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8309c1ab 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
16/* $Id$ */
17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// ZDC digitizer class //
21// //
22///////////////////////////////////////////////////////////////////////////////
23
24#include <stdlib.h>
25
26// --- ROOT system
27#include <TTree.h>
28#include <TFile.h>
29#include <TNtuple.h>
30#include <TRandom.h>
31
32// --- AliRoot header files
33#include "AliLog.h"
34#include "AliRun.h"
35#include "AliHeader.h"
36#include "AliGenHijingEventHeader.h"
37#include "AliRunDigitizer.h"
38#include "AliRunLoader.h"
c93255fe 39#include "AliLoader.h"
12434381 40#include "AliGRPObject.h"
78d18275 41#include "AliCDBManager.h"
48642b09 42#include "AliCDBEntry.h"
8309c1ab 43#include "AliZDCSDigit.h"
44#include "AliZDCDigit.h"
45#include "AliZDCFragment.h"
a18a0543 46#include "AliZDCv3.h"
8309c1ab 47#include "AliZDCDigitizer.h"
8a2624cc 48
49class AliCDBStorage;
6024ec85 50class AliZDCPedestals;
8309c1ab 51
52ClassImp(AliZDCDigitizer)
53
54
55//____________________________________________________________________________
a718c993 56AliZDCDigitizer::AliZDCDigitizer() :
57 fIsCalibration(0),
fd9afd60 58 fIsSignalInADCGate(kFALSE),
59 fFracLostSignal(0.),
a718c993 60 fPedData(0),
2d9c70ab 61 fSpectators2Track(kFALSE),
62 fBeamEnergy(0.)
8309c1ab 63{
698e394d 64 // Default constructor
83534754 65 for(Int_t i=0; i<2; i++) fADCRes[i]=0.;
8309c1ab 66}
67
68//____________________________________________________________________________
69AliZDCDigitizer::AliZDCDigitizer(AliRunDigitizer* manager):
a718c993 70 AliDigitizer(manager),
71 fIsCalibration(0), //By default the simulation doesn't create calib. data
fd9afd60 72 fIsSignalInADCGate(kFALSE),
73 fFracLostSignal(0.),
a718c993 74 fPedData(GetPedData()),
2d9c70ab 75 fSpectators2Track(kFALSE),
76 fBeamEnergy(0.)
8309c1ab 77{
78d18275 78 // Get calibration data
d27e20dd 79 if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n");
edb4e893 80 for(Int_t i=0; i<5; i++){
698e394d 81 for(Int_t j=0; j<5; j++)
82 fPMGain[i][j] = 0.;
83 }
8309c1ab 84}
85
86//____________________________________________________________________________
87AliZDCDigitizer::~AliZDCDigitizer()
88{
89// Destructor
a718c993 90// Not implemented
8309c1ab 91}
92
93
94//____________________________________________________________________________
cc2abffd 95AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer):
a718c993 96 AliDigitizer(),
97 fIsCalibration(digitizer.fIsCalibration),
fd9afd60 98 fIsSignalInADCGate(digitizer.fIsSignalInADCGate),
99 fFracLostSignal(digitizer.fFracLostSignal),
a718c993 100 fPedData(digitizer.fPedData),
2d9c70ab 101 fSpectators2Track(digitizer.fSpectators2Track),
102 fBeamEnergy(digitizer.fBeamEnergy)
cc2abffd 103{
104 // Copy constructor
105
edb4e893 106 for(Int_t i=0; i<5; i++){
cc2abffd 107 for(Int_t j=0; j<5; j++){
108 fPMGain[i][j] = digitizer.fPMGain[i][j];
109 }
110 }
111 for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i];
cc2abffd 112
12434381 113
cc2abffd 114}
115
116//____________________________________________________________________________
8309c1ab 117Bool_t AliZDCDigitizer::Init()
118{
48642b09 119 // Initialize the digitizer
12434381 120
121 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
83534754 122 if(!entry) AliFatal("No calibration data loaded!");
12434381 123 AliGRPObject* grpData = 0x0;
124 if(entry){
125 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
126 if(m){
127 //m->Print();
128 grpData = new AliGRPObject();
129 grpData->ReadValuesFromMap(m);
130 }
131 else{
132 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
133 }
134 entry->SetOwner(0);
135 AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
136 }
83534754 137 if(!grpData){
138 AliError("No GRP entry found in OCDB! \n ");
139 return kFALSE;
140 }
12434381 141
142 TString beamType = grpData->GetBeamType();
143 if(beamType==AliGRPObject::GetInvalidString()){
144 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
145 }
146
2d9c70ab 147 fBeamEnergy = grpData->GetBeamEnergy();
148 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()){
12434381 149 AliWarning("GRP/GRP/Data entry: missing value for the beam energy ! Using 0.");
150 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
2d9c70ab 151 fBeamEnergy = 0.;
12434381 152 }
b553507a 153
2d9c70ab 154 if((beamType.CompareTo("P-P")) == 0 || (beamType.CompareTo("p-p")) == 0){
12434381 155 //PTM gains rescaled to beam energy for p-p
a66caee1 156 // New correction coefficients for PMT gains needed
157 // to reproduce experimental spectra (from Grazia Jul 2010)
2d9c70ab 158 if(fBeamEnergy != 0){
4df5e18f 159 for(Int_t j = 0; j < 5; j++){
160 fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000;
161 fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000;
162 fPMGain[3][j] = 1.350938*(661.444/fBeamEnergy+0.000740671)*10000000;
163 fPMGain[4][j] = 0.678597*(864.350/fBeamEnergy+0.00234375)*10000000;
164 }
165 fPMGain[2][1] = 0.869654*(1.32312-0.000101515*fBeamEnergy)*10000000;
166 fPMGain[2][2] = 1.030883*(1.32312-0.000101515*fBeamEnergy)*10000000;
dcb6916a 167 //
168 AliInfo(Form(" PMT gains for p-p @ %1.0f+%1.0f GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
169 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
12434381 170 }
dcb6916a 171 else{ // for RELDIS simulation
172 Float_t scalGainFactor = 0.5;
a736fd93 173 for(Int_t j = 0; j < 5; j++){
dcf187b9 174 fPMGain[0][j] = 50000./scalGainFactor; // ZNC
175 fPMGain[1][j] = 100000./scalGainFactor; // ZPC
dcb6916a 176 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
dcf187b9 177 fPMGain[3][j] = 50000./scalGainFactor; // ZNA
178 fPMGain[4][j] = 100000./scalGainFactor; // ZPA
a736fd93 179 }
dcb6916a 180 //
181 AliInfo(Form(" PMT gains for RELDIS simulation: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
182 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
a736fd93 183 }
12434381 184 }
f91d1e35 185 else if((beamType.CompareTo("A-A")) == 0){
2d9c70ab 186 // PTM gains for Pb-Pb @ 2.7+2.7 A TeV ***************
187 // rescaled for Pb-Pb @ 1.38+1.38 A TeV ***************
a66caee1 188 // Values corrected after 2010 Pb-Pb data taking (7/2/2011 - Ch.)
189 // Experimental data compared to EMD simulation for single nucleon peaks:
190 // ZN gains must be divided by 4, ZP gains by 10!
2d9c70ab 191 Float_t scalGainFactor = fBeamEnergy/2760.;
12434381 192 for(Int_t j = 0; j < 5; j++){
dcb6916a 193 fPMGain[0][j] = 50000./(4*scalGainFactor); // ZNC
194 fPMGain[1][j] = 100000./(5*scalGainFactor); // ZPC
195 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
196 fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA
197 fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA
12434381 198 }
2d9c70ab 199 AliInfo(Form(" PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
4df5e18f 200 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
12434381 201 }
698e394d 202
203 // ADC Caen V965
7f73eb6b 204 fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
205 fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
8309c1ab 206
207 return kTRUE;
208}
209
210//____________________________________________________________________________
211void AliZDCDigitizer::Exec(Option_t* /*option*/)
212{
48642b09 213 // Execute digitization
8309c1ab 214
d79f8d50 215 // ------------------------------------------------------------
f91d1e35 216 // !!! 2nd ZDC set added
217 // *** 1st 3 arrays are digits from REAL (simulated) hits
218 // *** last 2 are copied from simulated digits
fd9afd60 219 // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4]
220 // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4]
48642b09 221 // --- pm[2][...] = light in ZEM [x, 1, 2, x, x]
fd9afd60 222 // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW!
223 // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW!
d79f8d50 224 // ------------------------------------------------------------
225 Float_t pm[5][5];
8574b308 226 for(Int_t iSector1=0; iSector1<5; iSector1++)
227 for(Int_t iSector2=0; iSector2<5; iSector2++){
8309c1ab 228 pm[iSector1][iSector2] = 0;
229 }
d79f8d50 230
231 // ------------------------------------------------------------
232 // ### Out of time ADC added (22 channels)
233 // --- same codification as for signal PTMs (see above)
234 // ------------------------------------------------------------
235 Float_t pmoot[5][5];
8574b308 236 for(Int_t iSector1=0; iSector1<5; iSector1++)
237 for(Int_t iSector2=0; iSector2<5; iSector2++){
d79f8d50 238 pmoot[iSector1][iSector2] = 0;
239 }
8309c1ab 240
241 // impact parameter and number of spectators
131b5d31 242 Float_t impPar = 0;
fd9afd60 243 Int_t specNTarg = 0, specPTarg = 0;
244 Int_t specNProj = 0, specPProj = 0;
a18a0543 245 Float_t signalTime0 = 0.;
8309c1ab 246
247 // loop over input streams
8574b308 248 for(Int_t iInput = 0; iInput<fManager->GetNinputs(); iInput++){
8309c1ab 249
250 // get run loader and ZDC loader
251 AliRunLoader* runLoader =
252 AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
253 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
8574b308 254 if(!loader) continue;
8309c1ab 255
256 // load sdigits
257 loader->LoadSDigits();
258 TTree* treeS = loader->TreeS();
8574b308 259 if(!treeS) continue;
8309c1ab 260 AliZDCSDigit sdigit;
261 AliZDCSDigit* psdigit = &sdigit;
262 treeS->SetBranchAddress("ZDC", &psdigit);
263
264 // loop over sdigits
8574b308 265 for(Int_t iSDigit=0; iSDigit<treeS->GetEntries(); iSDigit++){
8309c1ab 266 treeS->GetEntry(iSDigit);
7f73eb6b 267 //
8574b308 268 if(!psdigit) continue;
269 if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){
8309c1ab 270 AliError(Form("\nsector[0] = %d, sector[1] = %d\n",
271 sdigit.GetSector(0), sdigit.GetSector(1)));
272 continue;
273 }
fd9afd60 274 // Checking if signal is inside ADC gate
275 if(iSDigit==0) signalTime0 = sdigit.GetTrackTime();
276 else{
277 // Assuming a signal lenght of 20 ns, signal is in gate if
278 // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50.
279 if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE;
280 if(sdigit.GetTrackTime()>signalTime0+30.){
281 fIsSignalInADCGate = kFALSE;
282 // Vedi quaderno per spiegazione approx. usata
283 // nel calcolo della fraz. di segnale perso
284 fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.;
285 }
286 }
698e394d 287
fd9afd60 288 Float_t sdSignal = sdigit.GetLightPM();
289 if(fIsSignalInADCGate == kFALSE){
7e858b1d 290 AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n",
0fba8107 291 sdigit.GetTrackTime(),fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1)));
fd9afd60 292 sdSignal = (1-fFracLostSignal)*sdSignal;
293 }
294
48642b09 295 pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM();
698e394d 296 //Ch. debug
297 /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
48642b09 298 sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1,
698e394d 299 sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]);
878fa0b3 300 */
fd9afd60 301
8309c1ab 302 }
303
8309c1ab 304 loader->UnloadSDigits();
305
306 // get the impact parameter and the number of spectators in case of hijing
8574b308 307 if(!runLoader->GetAliRun()) runLoader->LoadgAlice();
d3b3a3b2 308 AliHeader* header = runLoader->GetHeader();
8574b308 309 if(!header) continue;
8309c1ab 310 AliGenEventHeader* genHeader = header->GenEventHeader();
8574b308 311 if(!genHeader) continue;
312 if(!genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) continue;
a18a0543 313
70ecaffe 314 if(fSpectators2Track==kTRUE){
a18a0543 315 impPar = ((AliGenHijingEventHeader*) genHeader)->ImpactParameter();
316 specNProj = ((AliGenHijingEventHeader*) genHeader)->ProjSpectatorsn();
317 specPProj = ((AliGenHijingEventHeader*) genHeader)->ProjSpectatorsp();
318 specNTarg = ((AliGenHijingEventHeader*) genHeader)->TargSpectatorsn();
319 specPTarg = ((AliGenHijingEventHeader*) genHeader)->TargSpectatorsp();
320 printf("\n\t AliZDCDigitizer: b = %1.2f fm\n"
321 " \t PROJ.: #spectator n %d, #spectator p %d\n"
2413fd18 322 " \t TARG.: #spectator n %d, #spectator p %d\n",
a18a0543 323 impPar, specNProj, specPProj, specNTarg, specPTarg);
324 }
325
8309c1ab 326 }
327
fd9afd60 328 // Applying fragmentation algorithm and adding spectator signal
70ecaffe 329 if(fSpectators2Track==kTRUE && impPar) {
fd9afd60 330 Int_t freeSpecNProj, freeSpecPProj;
331 Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj);
332 Int_t freeSpecNTarg, freeSpecPTarg;
333 Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg);
334 SpectatorSignal(1, freeSpecNProj, pm);
2413fd18 335 printf("\t AliZDCDigitizer -> Adding signal for %d PROJ free spectator n",freeSpecNProj);
fd9afd60 336 SpectatorSignal(2, freeSpecPProj, pm);
2413fd18 337 printf(" and %d free spectator p\n",freeSpecPProj);
fd9afd60 338 SpectatorSignal(3, freeSpecNTarg, pm);
2413fd18 339 printf("\t AliZDCDigitizer -> Adding signal for %d TARG free spectator n",freeSpecNTarg);
fd9afd60 340 SpectatorSignal(4, freeSpecPTarg, pm);
2413fd18 341 printf(" and %d free spectator p\n\n",freeSpecPTarg);
8309c1ab 342 }
343
8a2624cc 344
8309c1ab 345 // get the output run loader and loader
346 AliRunLoader* runLoader =
347 AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
348 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
8574b308 349 if(!loader) {
8309c1ab 350 AliError("no ZDC loader found");
351 return;
352 }
353
354 // create the output tree
355 const char* mode = "update";
8574b308 356 if(runLoader->GetEventNumber() == 0) mode = "recreate";
8309c1ab 357 loader->LoadDigits(mode);
358 loader->MakeTree("D");
359 TTree* treeD = loader->TreeD();
360 AliZDCDigit digit;
361 AliZDCDigit* pdigit = &digit;
362 const Int_t kBufferSize = 4000;
363 treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize);
364
365 // Create digits
80e87581 366 Int_t sector[2];
367 Int_t digi[2], digioot[2];
368 for(sector[0]=1; sector[0]<6; sector[0]++){
abf60186 369 for(sector[1]=0; sector[1]<5; sector[1]++){
370 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
8574b308 371 for(Int_t res=0; res<2; res++){
abf60186 372 digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res)
48642b09 373 + Pedestal(sector[0], sector[1], res);
7f73eb6b 374 }
abf60186 375 new(pdigit) AliZDCDigit(sector, digi);
8309c1ab 376 treeD->Fill();
698e394d 377
378 //Ch. debug
379 //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
380 // sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
381
8309c1ab 382 }
83347831 383 } // Loop over detector
384 // Adding in-time digits for 2 reference PTM signals (after signal ch.)
385 // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!)
386 Int_t sectorRef[2];
387 sectorRef[1] = 5;
9d38ced8 388 Int_t sigRef[2];
80e87581 389 // Reference signal are set to 100 (high gain chain) and 800 (low gain chain)
9d38ced8 390 if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;}
80e87581 391 else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values
9d38ced8 392 //
83347831 393 for(Int_t iref=0; iref<2; iref++){
394 sectorRef[0] = 3*iref+1;
395 for(Int_t res=0; res<2; res++){
396 sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res);
397 }
83347831 398 new(pdigit) AliZDCDigit(sectorRef, sigRef);
399 treeD->Fill();
698e394d 400
401 //Ch. debug
402 //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
403 // sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!
abf60186 404 }
d79f8d50 405 //
406 // --- Adding digits for out-of-time channels after signal digits
80e87581 407 for(sector[0]=1; sector[0]<6; sector[0]++){
d79f8d50 408 for(sector[1]=0; sector[1]<5; sector[1]++){
409 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
8574b308 410 for(Int_t res=0; res<2; res++){
d79f8d50 411 digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs
412 }
d79f8d50 413 new(pdigit) AliZDCDigit(sector, digioot);
414 treeD->Fill();
698e394d 415
416 //Ch. debug
417 //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
418 // sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!
d79f8d50 419 }
420 }
83347831 421 // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.)
422 Int_t sigRefoot[2];
423 for(Int_t iref=0; iref<2; iref++){
424 sectorRef[0] = 3*iref+1;
425 for(Int_t res=0; res<2; res++){
426 sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res);
427 }
83347831 428 new(pdigit) AliZDCDigit(sectorRef, sigRefoot);
429 treeD->Fill();
698e394d 430 //Ch. debug
431 //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
432 // sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
433
83347831 434 }
435 //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
436
8309c1ab 437 // write the output tree
438 loader->WriteDigits("OVERWRITE");
439 loader->UnloadDigits();
440}
441
442
443//_____________________________________________________________________________
444void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP,
445 Int_t &freeSpecN, Int_t &freeSpecP) const
446{
447// simulate fragmentation of spectators
448
8309c1ab 449 AliZDCFragment frag(impPar);
8309c1ab 450
451 // Fragments generation
92339a90 452 frag.GenerateIMF();
453 Int_t nAlpha = frag.GetNalpha();
8309c1ab 454
455 // Attach neutrons
98711e01 456 frag.AttachNeutrons();
92339a90 457 Int_t ztot = frag.GetZtot();
458 Int_t ntot = frag.GetNtot();
98711e01 459
460 // Removing fragments and alpha pcs
8309c1ab 461 freeSpecN = specN-ntot-2*nAlpha;
462 freeSpecP = specP-ztot-2*nAlpha;
98711e01 463
3848c666 464 // Removing deuterons
a0607c1f 465 Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber());
3848c666 466 freeSpecN -= ndeu;
98711e01 467 freeSpecP -= ndeu;
3848c666 468 //
8309c1ab 469 if(freeSpecN<0) freeSpecN=0;
470 if(freeSpecP<0) freeSpecP=0;
471 AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP));
472}
473
474//_____________________________________________________________________________
475void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents,
fd9afd60 476 Float_t pm[5][5]) const
8309c1ab 477{
478// add signal of the spectators
fd9afd60 479
2d9c70ab 480 TFile *specSignalFile = TFile::Open("$ALICE_ROOT/ZDC/SpectatorSignal.root");
481 if(!specSignalFile || !specSignalFile->IsOpen()) {
482 AliError((" Opening file $ALICE_ROOT/ZDC/SpectatorSignal.root failed\n"));
483 return;
8309c1ab 484 }
2d9c70ab 485
e7eabc21 486 TNtuple* zdcSignal=0x0;
2d9c70ab 487
488 Float_t sqrtS = 2*fBeamEnergy;
489 //
490 if(TMath::Abs(sqrtS-5500) < 100.){
491 specSignalFile->cd("energy5500");
492 //
493 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
494 specSignalFile->GetObject("energy5500/ZNCSignal;1",zdcSignal);
495 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
496 }
497 else if(SpecType == 2) { // --- Signal for projectile spectator protons
498 specSignalFile->GetObject("energy5500/ZPCSignal;1",zdcSignal);
499 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
500 }
501 else if(SpecType == 3) { // --- Signal for target spectator neutrons
502 specSignalFile->GetObject("energy5500/ZNASignal;1",zdcSignal);
503 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
504 }
505 else if(SpecType == 4) { // --- Signal for target spectator protons
506 specSignalFile->GetObject("energy5500/ZPASignal;1",zdcSignal);
507 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
508 }
fd9afd60 509 }
2d9c70ab 510 else if(TMath::Abs(sqrtS-2760) < 100.){
511 specSignalFile->cd("energy2760");
512 //
513 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
514 specSignalFile->GetObject("energy2760/ZNCSignal;1",zdcSignal);
515 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
516 }
517 else if(SpecType == 2) { // --- Signal for projectile spectator protons
518 specSignalFile->GetObject("energy2760/ZPCSignal;1",zdcSignal);
519 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
520 }
521 else if(SpecType == 3) { // --- Signal for target spectator neutrons
522 specSignalFile->GetObject("energy2760/ZNASignal;1",zdcSignal);
523 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
524 }
525 else if(SpecType == 4) { // --- Signal for target spectator protons
526 specSignalFile->GetObject("energy2760/ZPASignal;1",zdcSignal);
527 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
528 }
fd9afd60 529 }
530
83534754 531 if(!zdcSignal){
532 printf("\n No spectator signal available for ZDC digitization\n");
533 return;
534 }
535
8309c1ab 536 Int_t nentries = (Int_t) zdcSignal->GetEntries();
537
fd9afd60 538 Float_t *entry;
539 Int_t pl, i, k, iev=0, rnd[125], volume[2];
48642b09 540 for(pl=0;pl<125;pl++) rnd[pl] = 0;
8574b308 541 if(numEvents > 125) {
fea9b334 542 AliDebug(2,Form("numEvents (%d) is larger than 125", numEvents));
8309c1ab 543 numEvents = 125;
544 }
545 for(pl=0;pl<numEvents;pl++){
546 rnd[pl] = (Int_t) (9999*gRandom->Rndm());
85a96223 547 if(rnd[pl] >= 9999) rnd[pl] = 9998;
8309c1ab 548 //printf(" rnd[%d] = %d\n",pl,rnd[pl]);
549 }
550 // Sorting vector in ascending order with C function QSORT
551 qsort((void*)rnd,numEvents,sizeof(Int_t),comp);
552 do{
553 for(i=0; i<nentries; i++){
554 zdcSignal->GetEvent(i);
555 entry = zdcSignal->GetArgs();
556 if(entry[0] == rnd[iev]){
557 for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1];
48642b09 558 //
fd9afd60 559 Float_t lightQ = entry[7];
560 Float_t lightC = entry[8];
561 //
acf9550c 562 if(volume[0] != 3) { // ZN or ZP
8309c1ab 563 pm[volume[0]-1][0] += lightC;
564 pm[volume[0]-1][volume[1]] += lightQ;
48642b09 565 //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0],
566 // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]);
567 }
568 else {
8574b308 569 if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1
acf9550c 570 else pm[2][2] += lightQ; // ZEM 2
48642b09 571 //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]);
572 }
8309c1ab 573 }
574 else if(entry[0] > rnd[iev]){
575 iev++;
576 continue;
577 }
578 }
579 }while(iev<numEvents);
580
2d9c70ab 581 specSignalFile->Close();
582 delete specSignalFile;
8309c1ab 583}
584
585
586//_____________________________________________________________________________
587Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light,
588 Int_t Res) const
589{
48642b09 590 // Evaluation of the ADC channel corresponding to the light yield Light
8a2624cc 591 Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]);
698e394d 592 // Ch. debug
593 //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f ADC %d\n",
594 // Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch);
7f73eb6b 595
8a2624cc 596 return vADCch;
48642b09 597}
8309c1ab 598
48642b09 599//_____________________________________________________________________________
600Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const
601{
8a2624cc 602 // Returns a pedestal for detector det, PM quad, channel with res.
603 //
65b16e87 604 Float_t pedValue;
abf60186 605 // Normal run
606 if(fIsCalibration == 0){
c35ed519 607 Int_t index=0, kNch=24;
83347831 608 if(Quad!=5){
c35ed519 609 if(Det==1) index = Quad+kNch*Res; // ZNC
610 else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC
611 else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM
612 else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA
613 else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA
83347831 614 }
c35ed519 615 else index = (Det-1)/3+22+kNch*Res; // Reference PMs
83347831 616 //
c35ed519 617 Float_t meanPed = fPedData->GetMeanPed(index);
618 Float_t pedWidth = fPedData->GetMeanPedWidth(index);
65b16e87 619 pedValue = gRandom->Gaus(meanPed,pedWidth);
abf60186 620 //
58e12fee 621 /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n",
65b16e87 622 Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging!
abf60186 623 */
624 }
7f73eb6b 625 // To create calibration object
83347831 626 else{
65b16e87 627 if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain
628 else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain
83347831 629 }
dbc8d7fc 630
65b16e87 631 return (Int_t) pedValue;
8309c1ab 632}
633
634//_____________________________________________________________________________
78d18275 635AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri)
8309c1ab 636{
8309c1ab 637
78d18275 638 Bool_t deleteManager = kFALSE;
48642b09 639
78d18275 640 AliCDBManager *manager = AliCDBManager::Instance();
641 AliCDBStorage *defstorage = manager->GetDefaultStorage();
48642b09 642
78d18275 643 if(!defstorage || !(defstorage->Contains("ZDC"))){
644 AliWarning("No default storage set or default storage doesn't contain ZDC!");
645 manager->SetDefaultStorage(uri);
646 deleteManager = kTRUE;
647 }
648
649 AliCDBStorage *storage = manager->GetDefaultStorage();
650
651 if(deleteManager){
652 AliCDBManager::Instance()->UnsetDefaultStorage();
653 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
654 }
655
656 return storage;
657}
48642b09 658
78d18275 659//_____________________________________________________________________________
6024ec85 660AliZDCPedestals* AliZDCDigitizer::GetPedData() const
661{
662
663 // Getting pedestal calibration object for ZDC set
664
665 AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals");
666 if(!entry) AliFatal("No calibration data loaded!");
667
668 AliZDCPedestals *calibdata = dynamic_cast<AliZDCPedestals*> (entry->GetObject());
669 if(!calibdata) AliFatal("Wrong calibration object in calibration file!");
670
671 return calibdata;
672}
f91d1e35 673