1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // ZDC digitizer class //
22 ///////////////////////////////////////////////////////////////////////////////
32 // --- AliRoot header files
35 #include "AliHeader.h"
36 #include "AliGenHijingEventHeader.h"
37 #include "AliGenCocktailEventHeader.h"
38 #include "AliDigitizationInput.h"
39 #include "AliRunLoader.h"
40 #include "AliLoader.h"
41 #include "AliGRPObject.h"
42 #include "AliCDBManager.h"
43 #include "AliCDBEntry.h"
44 #include "AliZDCSDigit.h"
45 #include "AliZDCDigit.h"
46 #include "AliZDCFragment.h"
48 #include "AliZDCDigitizer.h"
51 class AliZDCPedestals;
53 ClassImp(AliZDCDigitizer)
56 //____________________________________________________________________________
57 AliZDCDigitizer::AliZDCDigitizer() :
59 fIsSignalInADCGate(kFALSE),
62 fSpectators2Track(kFALSE),
66 // Default constructor
67 for(Int_t i=0; i<2; i++) fADCRes[i]=0.;
70 //____________________________________________________________________________
71 AliZDCDigitizer::AliZDCDigitizer(AliDigitizationInput* digInput):
72 AliDigitizer(digInput),
73 fIsCalibration(0), //By default the simulation doesn't create calib. data
74 fIsSignalInADCGate(kFALSE),
76 fPedData(GetPedData()),
77 fSpectators2Track(kFALSE),
81 // Get calibration data
82 if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n");
83 for(Int_t i=0; i<5; i++){
84 for(Int_t j=0; j<5; j++)
89 //____________________________________________________________________________
90 AliZDCDigitizer::~AliZDCDigitizer()
97 //____________________________________________________________________________
98 AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer):
100 fIsCalibration(digitizer.fIsCalibration),
101 fIsSignalInADCGate(digitizer.fIsSignalInADCGate),
102 fFracLostSignal(digitizer.fFracLostSignal),
103 fPedData(digitizer.fPedData),
104 fSpectators2Track(digitizer.fSpectators2Track),
105 fBeamEnergy(digitizer.fBeamEnergy),
106 fIspASystem(digitizer.fIspASystem)
110 for(Int_t i=0; i<5; i++){
111 for(Int_t j=0; j<5; j++){
112 fPMGain[i][j] = digitizer.fPMGain[i][j];
115 for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i];
120 //____________________________________________________________________________
121 Bool_t AliZDCDigitizer::Init()
123 // Initialize the digitizer
125 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
126 if(!entry) AliFatal("No calibration data loaded!");
127 AliGRPObject* grpData = 0x0;
129 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
132 grpData = new AliGRPObject();
133 grpData->ReadValuesFromMap(m);
136 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
139 AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
142 AliError("No GRP entry found in OCDB! \n ");
146 TString beamType = grpData->GetBeamType();
147 if(beamType==AliGRPObject::GetInvalidString()){
148 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
151 fBeamEnergy = grpData->GetBeamEnergy();
152 printf("\t AliZDCDigitizer -> beam energy = %f GeV\n", fBeamEnergy);
153 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()){
154 AliWarning("GRP/GRP/Data entry: missing value for the beam energy ! Using 0.");
155 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
159 if((((beamType.CompareTo("P-P")) == 0) || ((beamType.CompareTo("p-p")) == 0)) && (!fIspASystem)){
160 // PTM gains rescaled to beam energy for p-p
161 // New correction coefficients for PMT gains needed
162 // to reproduce experimental spectra (from Grazia Jul 2010)
163 if(fBeamEnergy != 0){
164 for(Int_t j = 0; j < 5; j++){
165 fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000;
166 fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000;
167 fPMGain[3][j] = 1.350938*(661.444/fBeamEnergy+0.000740671)*10000000;
168 fPMGain[4][j] = 0.678597*(864.350/fBeamEnergy+0.00234375)*10000000;
170 fPMGain[2][1] = 0.869654*(1.32312-0.000101515*fBeamEnergy)*10000000;
171 fPMGain[2][2] = 1.030883*(1.32312-0.000101515*fBeamEnergy)*10000000;
173 printf(" PMT gains for p-p @ %1.0f+%1.0f GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
174 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]);
176 else{ // for RELDIS simulation @ sqrt(s_{NN}) = 2.76 TeV
177 Float_t scalGainFactor = 0.5;
178 for(Int_t j = 0; j < 5; j++){
179 fPMGain[0][j] = 50000./scalGainFactor; // ZNC
180 fPMGain[1][j] = 100000./scalGainFactor; // ZPC
181 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
182 fPMGain[3][j] = 50000./scalGainFactor; // ZNA
183 fPMGain[4][j] = 100000./scalGainFactor; // ZPA
186 printf(" PMT gains for RELDIS simulation: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
187 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]);
190 else if((beamType.CompareTo("A-A")) == 0 && !fIspASystem){
191 // PTM gains for Pb-Pb @ 2.7+2.7 A TeV ***************
192 // rescaled for Pb-Pb @ 1.38+1.38 A TeV ***************
193 // Values corrected after 2010 Pb-Pb data taking (7/2/2011 - Ch.)
194 // Experimental data compared to EMD simulation for single nucleon peaks:
195 // ZN gains must be divided by 4, ZP gains by 10!
196 Float_t scalGainFactor = fBeamEnergy/2760.;
197 for(Int_t j = 0; j < 5; j++){
198 fPMGain[0][j] = 50000./(4*scalGainFactor); // ZNC
199 fPMGain[1][j] = 100000./(5*scalGainFactor); // ZPC
200 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
201 fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA
202 fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA
204 printf(" PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
205 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]);
209 // PTM gains for Pb-Pb @ 1.38+1.38 A TeV on side A
210 // PTM gains rescaled to beam energy for p-p on side C
211 // WARNING! Energies are set by hand for 2011 pA RUN!!!
212 Float_t scalGainFactor = 0.5;
213 Float_t fpBeamEnergy = 3500.;
215 for(Int_t j = 0; j < 5; j++){
216 fPMGain[0][j] = 1.350938*(661.444/fpBeamEnergy+0.000740671)*10000000; //ZNC (p)
217 fPMGain[1][j] = 0.678597*(864.350/fpBeamEnergy+0.00234375)*10000000; //ZPC (p)
218 fPMGain[2][j] = 100000./scalGainFactor; // ZEM (Pb)
219 fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA (Pb)
220 fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA (Pb)
222 printf(" PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
223 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]);
227 fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
228 fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
233 //____________________________________________________________________________
234 void AliZDCDigitizer::Digitize(Option_t* /*option*/)
236 // Execute digitization
238 // ------------------------------------------------------------
239 // !!! 2nd ZDC set added
240 // *** 1st 3 arrays are digits from REAL (simulated) hits
241 // *** last 2 are copied from simulated digits
242 // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4]
243 // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4]
244 // --- pm[2][...] = light in ZEM [x, 1, 2, x, x]
245 // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW!
246 // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW!
247 // ------------------------------------------------------------
249 for(Int_t iSector1=0; iSector1<5; iSector1++)
250 for(Int_t iSector2=0; iSector2<5; iSector2++){
251 pm[iSector1][iSector2] = 0;
254 // ------------------------------------------------------------
255 // ### Out of time ADC added (22 channels)
256 // --- same codification as for signal PTMs (see above)
257 // ------------------------------------------------------------
259 for(Int_t iSector1=0; iSector1<5; iSector1++)
260 for(Int_t iSector2=0; iSector2<5; iSector2++){
261 pmoot[iSector1][iSector2] = 0;
264 // impact parameter and number of spectators
266 Int_t specNTarg = 0, specPTarg = 0;
267 Int_t specNProj = 0, specPProj = 0;
268 Float_t signalTime0 = 0.;
270 // loop over input streams
271 for(Int_t iInput = 0; iInput<fDigInput->GetNinputs(); iInput++){
273 // get run loader and ZDC loader
274 AliRunLoader* runLoader =
275 AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(iInput));
276 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
277 if(!loader) continue;
280 loader->LoadSDigits();
281 TTree* treeS = loader->TreeS();
284 AliZDCSDigit* psdigit = &sdigit;
285 treeS->SetBranchAddress("ZDC", &psdigit);
288 for(Int_t iSDigit=0; iSDigit<treeS->GetEntries(); iSDigit++){
289 treeS->GetEntry(iSDigit);
291 if(!psdigit) continue;
292 if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){
293 AliError(Form("\nsector[0] = %d, sector[1] = %d\n",
294 sdigit.GetSector(0), sdigit.GetSector(1)));
297 // Checking if signal is inside ADC gate
298 if(iSDigit==0) signalTime0 = sdigit.GetTrackTime();
300 // Assuming a signal lenght of 20 ns, signal is in gate if
301 // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50.
302 if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE;
303 if(sdigit.GetTrackTime()>signalTime0+30.){
304 fIsSignalInADCGate = kFALSE;
305 // Vedi quaderno per spiegazione approx. usata
306 // nel calcolo della fraz. di segnale perso
307 fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.;
311 Float_t sdSignal = sdigit.GetLightPM();
312 if(fIsSignalInADCGate == kFALSE){
313 AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n",
314 sdigit.GetTrackTime(),fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1)));
315 sdSignal = (1-fFracLostSignal)*sdSignal;
318 pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM();
320 /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
321 sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1,
322 sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]);
327 loader->UnloadSDigits();
329 // get the impact parameter and the number of spectators in case of hijing
330 if(!runLoader->GetAliRun()) runLoader->LoadgAlice();
331 AliHeader* header = runLoader->GetHeader();
332 if(!header) continue;
333 AliGenEventHeader* genHeader = header->GenEventHeader();
334 if(!genHeader) continue;
335 AliGenHijingEventHeader *hijingHeader = 0;
336 if(genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (genHeader);
337 else if(genHeader->InheritsFrom(AliGenCocktailEventHeader::Class())){
338 TList* listOfHeaders = ((AliGenCocktailEventHeader*) genHeader)->GetHeaders();
339 hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (listOfHeaders->FindObject("Hijing"));
341 if(!hijingHeader) continue;
343 printf("fSpectators2Track %d fIspASystem%d \n",fSpectators2Track,fIspASystem);
345 if((fSpectators2Track==kTRUE) && (fIspASystem==kFALSE)){
346 impPar = hijingHeader->ImpactParameter();
347 specNProj = hijingHeader->ProjSpectatorsn();
348 specPProj = hijingHeader->ProjSpectatorsp();
349 specNTarg = hijingHeader->TargSpectatorsn();
350 specPTarg = hijingHeader->TargSpectatorsp();
351 printf("\n\t AliZDCDigitizer: b = %1.2f fm\n"
352 " \t PROJ.: #spectator n %d, #spectator p %d\n"
353 " \t TARG.: #spectator n %d, #spectator p %d\n",
354 impPar, specNProj, specPProj, specNTarg, specPTarg);
359 // Applying fragmentation algorithm and adding spectator signal
360 //if((fSpectators2Track==kTRUE) && impPar && (fIspASystem==kFALSE) {
361 Int_t freeSpecNProj, freeSpecPProj;
362 Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj);
363 Int_t freeSpecNTarg, freeSpecPTarg;
364 Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg);
365 SpectatorSignal(1, freeSpecNProj, pm);
366 printf("\t AliZDCDigitizer -> Adding signal for %d PROJ free spectator n",freeSpecNProj);
367 SpectatorSignal(2, freeSpecPProj, pm);
368 printf(" and %d free spectator p\n",freeSpecPProj);
369 SpectatorSignal(3, freeSpecNTarg, pm);
370 printf("\t AliZDCDigitizer -> Adding signal for %d TARG free spectator n",freeSpecNTarg);
371 SpectatorSignal(4, freeSpecPTarg, pm);
372 printf(" and %d free spectator p\n\n",freeSpecPTarg);
376 // get the output run loader and loader
377 AliRunLoader* runLoader =
378 AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());
379 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
381 AliError("no ZDC loader found");
385 // create the output tree
386 const char* mode = "update";
387 if(runLoader->GetEventNumber() == 0) mode = "recreate";
388 loader->LoadDigits(mode);
389 loader->MakeTree("D");
390 TTree* treeD = loader->TreeD();
392 AliZDCDigit* pdigit = &digit;
393 const Int_t kBufferSize = 4000;
394 treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize);
398 Int_t digi[2], digioot[2];
399 for(sector[0]=1; sector[0]<6; sector[0]++){
400 for(sector[1]=0; sector[1]<5; sector[1]++){
401 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
402 for(Int_t res=0; res<2; res++){
403 digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res)
404 + Pedestal(sector[0], sector[1], res);
406 new(pdigit) AliZDCDigit(sector, digi);
410 //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
411 // sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
414 } // Loop over detector
415 // Adding in-time digits for 2 reference PTM signals (after signal ch.)
416 // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!)
420 // Reference signal are set to 100 (high gain chain) and 800 (low gain chain)
421 if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;}
422 else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values
424 for(Int_t iref=0; iref<2; iref++){
425 sectorRef[0] = 3*iref+1;
426 for(Int_t res=0; res<2; res++){
427 sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res);
429 new(pdigit) AliZDCDigit(sectorRef, sigRef);
433 //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
434 // sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!
437 // --- Adding digits for out-of-time channels after signal digits
438 for(sector[0]=1; sector[0]<6; sector[0]++){
439 for(sector[1]=0; sector[1]<5; sector[1]++){
440 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
441 for(Int_t res=0; res<2; res++){
442 digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs
444 new(pdigit) AliZDCDigit(sector, digioot);
448 //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
449 // sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!
452 // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.)
454 for(Int_t iref=0; iref<2; iref++){
455 sectorRef[0] = 3*iref+1;
456 for(Int_t res=0; res<2; res++){
457 sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res);
459 new(pdigit) AliZDCDigit(sectorRef, sigRefoot);
462 //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
463 // sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
466 //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
468 // write the output tree
469 loader->WriteDigits("OVERWRITE");
470 loader->UnloadDigits();
474 //_____________________________________________________________________________
475 void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP,
476 Int_t &freeSpecN, Int_t &freeSpecP) const
478 // simulate fragmentation of spectators
480 AliZDCFragment frag(impPar);
482 // Fragments generation
484 Int_t nAlpha = frag.GetNalpha();
487 frag.AttachNeutrons();
488 Int_t ztot = frag.GetZtot();
489 Int_t ntot = frag.GetNtot();
491 // Removing fragments and alpha pcs
492 freeSpecN = specN-ntot-2*nAlpha;
493 freeSpecP = specP-ztot-2*nAlpha;
495 // Removing deuterons
496 Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber());
500 if(freeSpecN<0) freeSpecN=0;
501 if(freeSpecP<0) freeSpecP=0;
502 AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP));
505 //_____________________________________________________________________________
506 void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents,
507 Float_t pm[5][5]) const
509 // add signal of the spectators
511 TFile *specSignalFile = TFile::Open("$ALICE_ROOT/ZDC/SpectatorSignal.root");
512 if(!specSignalFile || !specSignalFile->IsOpen()) {
513 AliError((" Opening file $ALICE_ROOT/ZDC/SpectatorSignal.root failed\n"));
517 TNtuple* zdcSignal=0x0;
519 Float_t sqrtS = 2*fBeamEnergy;
520 if(fIspASystem) sqrtS = 2760.;
522 if(TMath::Abs(sqrtS-5500) < 100.){
523 specSignalFile->cd("energy5500");
525 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
526 specSignalFile->GetObject("energy5500/ZNCSignal;1",zdcSignal);
527 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
529 else if(SpecType == 2) { // --- Signal for projectile spectator protons
530 specSignalFile->GetObject("energy5500/ZPCSignal;1",zdcSignal);
531 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
533 else if(SpecType == 3) { // --- Signal for target spectator neutrons
534 specSignalFile->GetObject("energy5500/ZNASignal;1",zdcSignal);
535 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
537 else if(SpecType == 4) { // --- Signal for target spectator protons
538 specSignalFile->GetObject("energy5500/ZPASignal;1",zdcSignal);
539 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
542 else if(TMath::Abs(sqrtS-2760) < 100.){
543 specSignalFile->cd("energy2760");
545 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
546 specSignalFile->GetObject("energy2760/ZNCSignal;1",zdcSignal);
547 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
549 else if(SpecType == 2) { // --- Signal for projectile spectator protons
550 specSignalFile->GetObject("energy2760/ZPCSignal;1",zdcSignal);
551 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
553 else if(SpecType == 3) { // --- Signal for target spectator neutrons
554 specSignalFile->GetObject("energy2760/ZNASignal;1",zdcSignal);
555 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
557 else if(SpecType == 4) { // --- Signal for target spectator protons
558 specSignalFile->GetObject("energy2760/ZPASignal;1",zdcSignal);
559 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
564 printf("\n No spectator signal available for ZDC digitization\n");
568 Int_t nentries = (Int_t) zdcSignal->GetEntries();
571 Int_t pl, i, k, iev=0, rnd[125], volume[2];
572 for(pl=0;pl<125;pl++) rnd[pl] = 0;
573 if(numEvents > 125) {
574 AliDebug(2,Form("numEvents (%d) is larger than 125", numEvents));
577 for(pl=0;pl<numEvents;pl++){
578 rnd[pl] = (Int_t) (9999*gRandom->Rndm());
579 if(rnd[pl] >= 9999) rnd[pl] = 9998;
580 //printf(" rnd[%d] = %d\n",pl,rnd[pl]);
582 // Sorting vector in ascending order with C function QSORT
583 qsort((void*)rnd,numEvents,sizeof(Int_t),comp);
585 for(i=0; i<nentries; i++){
586 zdcSignal->GetEvent(i);
587 entry = zdcSignal->GetArgs();
588 if(entry[0] == rnd[iev]){
589 for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1];
591 Float_t lightQ = entry[7];
592 Float_t lightC = entry[8];
594 if(volume[0] != 3) { // ZN or ZP
595 pm[volume[0]-1][0] += lightC;
596 pm[volume[0]-1][volume[1]] += lightQ;
597 //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0],
598 // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]);
601 if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1
602 else pm[2][2] += lightQ; // ZEM 2
603 //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]);
606 else if(entry[0] > rnd[iev]){
611 }while(iev<numEvents);
613 specSignalFile->Close();
614 delete specSignalFile;
618 //_____________________________________________________________________________
619 Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light,
622 // Evaluation of the ADC channel corresponding to the light yield Light
623 Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]);
625 //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f ADC %d\n",
626 // Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch);
631 //_____________________________________________________________________________
632 Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const
634 // Returns a pedestal for detector det, PM quad, channel with res.
638 if(fIsCalibration == 0){
639 Int_t index=0, kNch=24;
641 if(Det==1) index = Quad+kNch*Res; // ZNC
642 else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC
643 else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM
644 else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA
645 else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA
647 else index = (Det-1)/3+22+kNch*Res; // Reference PMs
649 Float_t meanPed = fPedData->GetMeanPed(index);
650 Float_t pedWidth = fPedData->GetMeanPedWidth(index);
651 pedValue = gRandom->Gaus(meanPed,pedWidth);
653 /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n",
654 Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging!
657 // To create calibration object
659 if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain
660 else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain
663 return (Int_t) pedValue;
666 //_____________________________________________________________________________
667 AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri)
670 Bool_t deleteManager = kFALSE;
672 AliCDBManager *manager = AliCDBManager::Instance();
673 AliCDBStorage *defstorage = manager->GetDefaultStorage();
675 if(!defstorage || !(defstorage->Contains("ZDC"))){
676 AliWarning("No default storage set or default storage doesn't contain ZDC!");
677 manager->SetDefaultStorage(uri);
678 deleteManager = kTRUE;
681 AliCDBStorage *storage = manager->GetDefaultStorage();
684 AliCDBManager::Instance()->UnsetDefaultStorage();
685 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
691 //_____________________________________________________________________________
692 AliZDCPedestals* AliZDCDigitizer::GetPedData() const
695 // Getting pedestal calibration object for ZDC set
697 AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals");
698 if(!entry) AliFatal("No calibration data loaded!");
700 AliZDCPedestals *calibdata = dynamic_cast<AliZDCPedestals*> (entry->GetObject());
701 if(!calibdata) AliFatal("Wrong calibration object in calibration file!");