#include "AliRunLoader.h"
#include "AliLoader.h"
#include "AliGRPObject.h"
-#include "AliRunDigitizer.h"
+#include "AliDigitizationInput.h"
#include "AliCDBManager.h"
#include "AliCDBStorage.h"
#include "AliCDBEntry.h"
#include "AliVZEROCalibData.h"
#include "AliCTPTimeParams.h"
+#include "AliLHCClockPhase.h"
#include "AliVZEROdigit.h"
#include "AliVZERODigitizer.h"
+#include "AliVZEROSDigit.h"
ClassImp(AliVZERODigitizer)
fDigits(0),
fSignalShape(NULL),
fPMResponse(NULL),
- fSinglePhESpectrum(NULL)
-
+ fSinglePhESpectrum(NULL),
+ fEvenOrOdd(kFALSE),
+ fTask(kHits2Digits),
+ fVZERO(NULL)
{
// default constructor
+ // Initialize OCDB and containers used in the digitization
-// fNdigits = 0;
-// fDigits = 0;
-//
-// fPhotoCathodeEfficiency = 0.18;
-// fPMVoltage = 768.0;
-// fPMGain = TMath::Power((fPMVoltage / 112.5) ,7.04277);
-
-// fCalibData = GetCalibData();
-
- fSignalShape = new TF1("VZEROSignalShape",this,&AliVZERODigitizer::SignalShape,0,200,6,"AliVZERODigitizer","SignalShape");
- // fSignalShape->SetParameters(0,1.57345e1,-4.25603e-1,2.9,6.40982,3.69339e-01);
- fSignalShape->SetParameters(1.34330e+00,1.13007e+02,-4.95705e-01,
- 3.68911e+00,1.01040e+00, 3.94675e-01);
- fPMResponse = new TF1("VZEROPMResponse",this,&AliVZERODigitizer::PMResponse,-kPMRespTime,2.*kPMRespTime,0,"AliVZERODigitizer","PMResponse");
- fSinglePhESpectrum = new TF1("VZEROSinglePhESpectrum",this,&AliVZERODigitizer::SinglePhESpectrum,0,20,0,"AliVZERODigitizer","SinglePhESpectrum");
-
- // Now get the CTP L0->L1 delay
- AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");
- if (!entry) AliFatal("CTP timing parameters are not found in OCDB !");
- AliCTPTimeParams *ctpParams = (AliCTPTimeParams*)entry->GetObject();
- Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;
-
- AliCDBEntry *entry2 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeDelays");
- if (!entry2) AliFatal("VZERO time delays are not found in OCDB !");
- TH1F *delays = (TH1F*)entry2->GetObject();
-
- for(Int_t i = 0 ; i < 64; ++i) {
-
- for(Int_t j = 0; j < kNClocks; ++j) fAdc[i][j] = 0;
- fLeadingTime[i] = fTimeWidth[i] = 0;
-
- fPmGain[i] = fCalibData->GetGain(i);
-
- fAdcPedestal[i][0] = fCalibData->GetPedestal(i);
- fAdcSigma[i][0] = fCalibData->GetSigma(i);
- fAdcPedestal[i][1] = fCalibData->GetPedestal(i+64);
- fAdcSigma[i][1] = fCalibData->GetSigma(i+64);
-
- Int_t board = i / 8;
- fNBins[i] = TMath::Nint(((Float_t)(fCalibData->GetMatchWindow(board)+1)*25.0+
- (Float_t)kMaxTDCWidth*fCalibData->GetWidthResolution(board))/
- fCalibData->GetTimeResolution(board));
- fNBinsLT[i] = TMath::Nint(((Float_t)(fCalibData->GetMatchWindow(board)+1)*25.0)/
- fCalibData->GetTimeResolution(board));
- fBinSize[i] = fCalibData->GetTimeResolution(board);
- fHptdcOffset[i] = (((Float_t)fCalibData->GetTriggerCountOffset(board)-
- (Float_t)fCalibData->GetRollOver(board))*25.0+
- fCalibData->GetTimeOffset(i)+
- l1Delay+
- delays->GetBinContent(i+1)+
- kV0Offset);
+ Init();
+}
- fTime[i] = new Float_t[fNBins[i]];
- memset(fTime[i],0,fNBins[i]*sizeof(Float_t));
- }
+//____________________________________________________________________________
+ AliVZERODigitizer::AliVZERODigitizer(AliVZERO *vzero, DigiTask_t task)
+ :AliDigitizer(),
+ fCalibData(GetCalibData()),
+ fPhotoCathodeEfficiency(0.18),
+ fNdigits(0),
+ fDigits(0),
+ fSignalShape(NULL),
+ fPMResponse(NULL),
+ fSinglePhESpectrum(NULL),
+ fEvenOrOdd(kFALSE),
+ fTask(task),
+ fVZERO(vzero)
+{
+ // constructor
+ // Initialize OCDB and containers used in the digitization
+ Init();
}
-
+
//____________________________________________________________________________
- AliVZERODigitizer::AliVZERODigitizer(AliRunDigitizer* manager)
- :AliDigitizer(manager),
+ AliVZERODigitizer::AliVZERODigitizer(AliDigitizationInput* digInput)
+ :AliDigitizer(digInput),
fCalibData(GetCalibData()),
fPhotoCathodeEfficiency(0.18),
fNdigits(0),
fDigits(0),
fSignalShape(NULL),
fPMResponse(NULL),
- fSinglePhESpectrum(NULL)
-
+ fSinglePhESpectrum(NULL),
+ fEvenOrOdd(kFALSE),
+ fTask(kHits2Digits),
+ fVZERO(NULL)
{
// constructor
// Initialize OCDB and containers used in the digitization
+
+ Init();
+}
+
+//____________________________________________________________________________
+ AliVZERODigitizer::~AliVZERODigitizer()
+{
+ // destructor
+ if (fDigits) {
+ fDigits->Delete();
+ delete fDigits;
+ fDigits=0;
+ }
+
+ if (fSignalShape) {
+ delete fSignalShape;
+ fSignalShape = NULL;
+ }
+ if (fPMResponse) {
+ delete fPMResponse;
+ fPMResponse = NULL;
+ }
+ if (fSinglePhESpectrum) {
+ delete fSinglePhESpectrum;
+ fSinglePhESpectrum = NULL;
+ }
+
+ for(Int_t i = 0 ; i < 64; ++i) {
+ if (fTime[i]) delete [] fTime[i];
+ }
+}
+
+//_____________________________________________________________________________
+Bool_t AliVZERODigitizer::Init()
+{
+ // Initialises the digitizer
+ // Initialize OCDB and containers used in the digitization
+
+ // check if the digitizer was already initialized
+ if (fSignalShape) return kTRUE;
+
fSignalShape = new TF1("VZEROSignalShape",this,&AliVZERODigitizer::SignalShape,0,200,6,"AliVZERODigitizer","SignalShape");
// fSignalShape->SetParameters(0,1.57345e1,-4.25603e-1,2.9,6.40982,3.69339e-01);
- fSignalShape->SetParameters(1.34330e+00,1.13007e+02,-4.95705e-01,
- 3.68911e+00,1.01040e+00, 3.94675e-01);
+ // fSignalShape->SetParameters(1.34330e+00,1.13007e+02,-4.95705e-01,
+ // 3.68911e+00,1.01040e+00, 3.94675e-01);
+ fSignalShape->SetParameters(-1.07335e+00,2.16002e+01,-1.26133e-01,
+ 1.41619e+00,5.50334e-01,3.86111e-01);
fPMResponse = new TF1("VZEROPMResponse",this,&AliVZERODigitizer::PMResponse,-kPMRespTime,2.*kPMRespTime,0,"AliVZERODigitizer","PMResponse");
fSinglePhESpectrum = new TF1("VZEROSinglePhESpectrum",this,&AliVZERODigitizer::SinglePhESpectrum,0,20,0,"AliVZERODigitizer","SinglePhESpectrum");
AliCTPTimeParams *ctpParams = (AliCTPTimeParams*)entry->GetObject();
Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;
+ AliCDBEntry *entry1 = AliCDBManager::Instance()->Get("GRP/CTP/TimeAlign");
+ if (!entry1) AliFatal("CTP time-alignment is not found in OCDB !");
+ AliCTPTimeParams *ctpTimeAlign = (AliCTPTimeParams*)entry1->GetObject();
+ l1Delay += ((Float_t)ctpTimeAlign->GetDelayL1L0()*25.0);
+
AliCDBEntry *entry2 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeDelays");
if (!entry2) AliFatal("VZERO time delays are not found in OCDB !");
TH1F *delays = (TH1F*)entry2->GetObject();
+ AliCDBEntry *entry3 = AliCDBManager::Instance()->Get("GRP/Calib/LHCClockPhase");
+ if (!entry3) AliFatal("LHC clock-phase shift is not found in OCDB !");
+ AliLHCClockPhase *phase = (AliLHCClockPhase*)entry3->GetObject();
+
for(Int_t i = 0 ; i < 64; ++i) {
for(Int_t j = 0; j < kNClocks; ++j) fAdc[i][j] = 0;
fAdcPedestal[i][1] = fCalibData->GetPedestal(i+64);
fAdcSigma[i][1] = fCalibData->GetSigma(i+64);
- Int_t board = i / 8;
+ Int_t board = AliVZEROCalibData::GetBoardNumber(i);
fNBins[i] = TMath::Nint(((Float_t)(fCalibData->GetMatchWindow(board)+1)*25.0+
(Float_t)kMaxTDCWidth*fCalibData->GetWidthResolution(board))/
fCalibData->GetTimeResolution(board));
fNBinsLT[i] = TMath::Nint(((Float_t)(fCalibData->GetMatchWindow(board)+1)*25.0)/
fCalibData->GetTimeResolution(board));
fBinSize[i] = fCalibData->GetTimeResolution(board);
- fHptdcOffset[i] = (((Float_t)fCalibData->GetTriggerCountOffset(board)-
- (Float_t)fCalibData->GetRollOver(board))*25.0+
- fCalibData->GetTimeOffset(i)+
- l1Delay+
+ fHptdcOffset[i] = (((Float_t)fCalibData->GetRollOver(board)-
+ (Float_t)fCalibData->GetTriggerCountOffset(board))*25.0+
+ fCalibData->GetTimeOffset(i)-
+ l1Delay-
+ phase->GetMeanPhase()+
delays->GetBinContent(i+1)+
kV0Offset);
+ fClockOffset[i] = (((Float_t)fCalibData->GetRollOver(board)-
+ (Float_t)fCalibData->GetTriggerCountOffset(board))*25.0+
+ fCalibData->GetTimeOffset(i)-
+ l1Delay+
+ kV0Offset);
fTime[i] = new Float_t[fNBins[i]];
memset(fTime[i],0,fNBins[i]*sizeof(Float_t));
}
+
+ return kTRUE;
}
-
-//____________________________________________________________________________
- AliVZERODigitizer::~AliVZERODigitizer()
-{
- // destructor
-
- if (fDigits) {
- fDigits->Delete();
- delete fDigits;
- fDigits=0;
- }
- if (fSignalShape) {
- delete fSignalShape;
- fSignalShape = NULL;
- }
- if (fPMResponse) {
- delete fPMResponse;
- fPMResponse = NULL;
+//____________________________________________________________________________
+void AliVZERODigitizer::Digitize(Option_t* /*option*/)
+{
+ // Creates digits from hits
+ fNdigits = 0;
+
+ if (fVZERO && !fDigInput) {
+ AliLoader *loader = fVZERO->GetLoader();
+ if (!loader) {
+ AliError("Can not get VZERO Loader via AliVZERO object!");
+ return;
+ }
+ AliRunLoader* runLoader = AliRunLoader::Instance();
+ for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); ++iEvent) {
+ runLoader->GetEvent(iEvent);
+ if (fTask == kHits2Digits) {
+ DigitizeHits();
+ DigitizeSDigits();
+ WriteDigits(loader);
+ }
+ else {
+ DigitizeHits();
+ WriteSDigits(loader);
+ }
+ }
}
- if (fSinglePhESpectrum) {
- delete fSinglePhESpectrum;
- fSinglePhESpectrum = NULL;
+ else if (fDigInput) {
+ ReadSDigits();
+ DigitizeSDigits();
+ AliRunLoader *currentLoader = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());
+ AliLoader *loader = currentLoader->GetLoader("VZEROLoader");
+ if (!loader) {
+ AliError("Cannot get VZERO Loader via RunDigitizer!");
+ return;
+ }
+ WriteDigits(loader);
}
-
- for(Int_t i = 0 ; i < 64; ++i) {
- if (fTime[i]) delete [] fTime[i];
+ else {
+ AliFatal("Invalid digitization task! Exiting!");
}
}
-//_____________________________________________________________________________
-Bool_t AliVZERODigitizer::Init()
+//____________________________________________________________________________
+void AliVZERODigitizer::AddDigit(Int_t pmnumber, Float_t time, Float_t width, Bool_t integrator, Short_t *chargeADC, Int_t *labels)
+ {
+
+// Adds Digit
+
+ TClonesArray &ldigits = *fDigits;
+
+ new(ldigits[fNdigits++]) AliVZEROdigit(pmnumber,time,width,integrator,chargeADC,labels);
+
+}
+//____________________________________________________________________________
+void AliVZERODigitizer::AddSDigit(Int_t pmnumber, Int_t nbins, Float_t *charges, Int_t *labels)
+ {
+
+// Adds SDigit
+
+ TClonesArray &ldigits = *fDigits;
+
+ new(ldigits[fNdigits++]) AliVZEROSDigit(pmnumber,nbins,charges,labels);
+
+}
+//____________________________________________________________________________
+void AliVZERODigitizer::ResetDigits()
{
- // Initialises the digitizer
- // Initialises the Digit array
- fDigits = new TClonesArray ("AliVZEROdigit", 1000);
-
- return kTRUE;
+// Clears Digits
+
+ fNdigits = 0;
+ if (fDigits) fDigits->Clear();
}
//____________________________________________________________________________
-void AliVZERODigitizer::Exec(Option_t* /*option*/)
-{
- // Creates digits from hits
- fNdigits = 0;
+AliVZEROCalibData* AliVZERODigitizer::GetCalibData() const
+
+{
+ AliCDBManager *man = AliCDBManager::Instance();
+
+ AliCDBEntry *entry=0;
+
+ entry = man->Get("VZERO/Calib/Data");
+
+// if(!entry){
+// AliWarning("Load of calibration data from default storage failed!");
+// AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
+// Int_t runNumber = man->GetRun();
+// entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
+// ->Get("VZERO/Calib/Data",runNumber);
+//
+// }
+
+ // Retrieval of data in directory VZERO/Calib/Data:
+
+
+ AliVZEROCalibData *calibdata = 0;
+
+ if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
+ if (!calibdata) AliFatal("No calibration data from calibration database !");
+
+ return calibdata;
+
+}
+
+double AliVZERODigitizer::SignalShape(double *x, double *par)
+{
+ // this function simulates the time
+ // of arrival of the photons at the
+ // photocathode
+ Double_t xx = x[0];
+ if (xx <= par[0]) return 0;
+ Double_t a = 1./TMath::Power((xx-par[0])/par[1],1./par[2]);
+ if (xx <= par[3]) return a;
+ Double_t b = 1./TMath::Power((xx-par[3])/par[4],1./par[5]);
+ Double_t f = a*b/(a+b);
+ AliDebug(100,Form("x=%f func=%f",xx,f));
+ return f;
+}
+
+double AliVZERODigitizer::PMResponse(double *x, double * /* par */)
+{
+ // this function describes the
+ // PM time response to a single
+ // photoelectron
+ Double_t xx = x[0]+kPMRespTime;
+ return xx*xx*TMath::Exp(-xx*xx/(kPMRespTime*kPMRespTime));
+}
+
+double AliVZERODigitizer::SinglePhESpectrum(double *x, double * /* par */)
+{
+ // this function describes the
+ // PM amplitude response to a single
+ // photoelectron
+ Double_t xx = x[0];
+ if (xx < 0) return 0;
+ return (TMath::Poisson(xx,kPMNbOfSecElec)+kPMTransparency*TMath::Poisson(xx,1.0));
+}
+
+Int_t AliVZERODigitizer::Cell2Pmt(Int_t cell) const
+{
+ // The method maps the scintillator
+ // indexes to the PM ones
+ if (cell < 0 || cell >= 80) {
+ AliError(Form("Wrong VZERO cell index %d",cell));
+ return -1;
+ }
+ if (cell < 16) return cell;
+ if (cell < 48) return 8 + cell/2;
+ return cell - 16;
+}
+
+void AliVZERODigitizer::DigitizeHits()
+{
+ // Digitize the hits to the level of
+ // SDigits (fTime arrays)
for(Int_t i = 0 ; i < 64; ++i) {
memset(fTime[i],0,fNBins[i]*sizeof(Float_t));
- for(Int_t j = 0; j < kNClocks; ++j) fAdc[i][j] = 0;
- fLeadingTime[i] = fTimeWidth[i] = 0;
+ fLabels[i][0] = fLabels[i][1] = fLabels[i][2] = -1;
}
Float_t integral = fPMResponse->Integral(-kPMRespTime,2.*kPMRespTime);
Float_t meansPhE = fSinglePhESpectrum->Mean(0,20);
- AliRunLoader* outRunLoader = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
- if (!outRunLoader) {
- Error("Exec", "Can not get output Run Loader");
- return;
- }
-
- AliLoader* outLoader = outRunLoader->GetLoader("VZEROLoader");
-
- if (!outLoader) {
- Error("Exec", "Can not get output VZERO Loader");
- return;
- }
-
- const char* mode = "update";
- if(outRunLoader->GetEventNumber() == 0) mode = "recreate";
- outLoader->LoadDigits(mode);
-
- if (!outLoader->TreeD()) outLoader->MakeTree("D");
- outLoader->MakeDigitsContainer();
- TTree* treeD = outLoader->TreeD();
- Int_t bufsize = 16000;
- treeD->Branch("VZERODigit", &fDigits, bufsize);
-
- for (Int_t iInput = 0; iInput < fManager->GetNinputs(); iInput++) {
- AliRunLoader* runLoader = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
- AliLoader* loader = runLoader->GetLoader("VZEROLoader");
+ AliLoader* loader = fVZERO->GetLoader();
if (!loader) {
- Error("Exec", "Can not get VZERO Loader for input %d", iInput);
- continue;
- }
-
- if (!runLoader->GetAliRun()) runLoader->LoadgAlice();
-
- AliVZERO* vzero = (AliVZERO*) runLoader->GetAliRun()->GetDetector("VZERO");
- if (!vzero) {
- Error("Exec", "No VZERO detector for input %d", iInput);
- continue;
- }
-
+ AliError("Can not get VZERO Loader!");
+ return;
+ }
loader->LoadHits();
TTree* treeH = loader->TreeH();
if (!treeH) {
- Error("Exec", "Cannot get TreeH for input %d", iInput);
- continue;
- }
-
- TClonesArray* hits = vzero->Hits();
-
- // Float_t lightYieldCorr[64] = {0.00707,0.00517,0.00520,0.00537,0.00735,0.00537,0.00733,0.00605,0.00778,0.00749,0.00701,0.00755,0.00732,0.00617,0.00669,0.00525,0.00752,0.00820,0.00797,0.01107,0.01080,0.00889,0.00880,0.01712,0.00866,0.00701,0.00811,0.00602,0.00879,0.00821,0.00861,0.01433,0.00061,0.00032,0.00099,0.00061,0.00034,0.00046,0.00031,0.00122,0.00155,0.00091,0.00032,0.00096,0.00120,0.00067,0.00113,0.00060,0.00158,0.00136,0.00340,0.00066,0.00076,0.00119,0.00129,0.00147,0.00137,0.00117,0.00088,0.00164,0.00128,0.00081,0.00121,0.00250};
- Float_t lightYieldCorr[64] = {0.01173,0.00874,0.00878,0.00886,0.01151,0.00925,0.01167,0.00983,0.01181,0.01243,0.01115,0.01220,0.01228,0.01053,0.01021,0.00930,0.01270,0.01411,0.01316,0.01894,0.01923,0.01860,0.01738,0.00305,0.01584,0.01251,0.01344,0.00310,0.01302,0.01266,0.01407,0.00338,0.00089,0.00100,0.00130,0.00081,0.00052,0.01230,0.00059,0.02452,0.02980,0.00137,0.01421,0.00116,0.00141,0.00092,0.02480,0.00096,0.00182,0.00174,0.00218,0.00106,0.00116,0.00160,0.00162,0.03097,0.00194,0.00171,0.00132,0.00239,0.00173,0.00118,0.00163,0.00262};
+ AliError("Cannot get TreeH!");
+ return;
+ }
+ TClonesArray* hits = fVZERO->Hits();
+
// Now makes Digits from hits
Int_t nTracks = (Int_t) treeH->GetEntries();
for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
- vzero->ResetHits();
+ fVZERO->ResetHits();
treeH->GetEvent(iTrack);
Int_t nHits = hits->GetEntriesFast();
for (Int_t iHit = 0; iHit < nHits; iHit++) {
Int_t nPhot = hit->Nphot();
Int_t cell = hit->Cell();
Int_t pmt = Cell2Pmt(cell);
+ if (pmt < 0) continue;
+ Int_t trackLabel = hit->GetTrack();
+ for(Int_t l = 0; l < 3; ++l) {
+ if (fLabels[pmt][l] < 0) {
+ fLabels[pmt][l] = trackLabel;
+ break;
+ }
+ }
Float_t dt_scintillator = gRandom->Gaus(0,kIntTimeRes);
Float_t t = dt_scintillator + 1e9*hit->Tof();
if (pmt < 32) t += kV0CDelayCables;
t += fHptdcOffset[pmt];
Int_t nPhE;
- Float_t prob = lightYieldCorr[pmt]*fPhotoCathodeEfficiency; // Optical losses included!
+ Float_t prob = fCalibData->GetLightYields(pmt)*fPhotoCathodeEfficiency; // Optical losses included!
if (nPhot > 100)
- nPhE =gRandom->Gaus(prob*Float_t(nPhot)+0.5,
- sqrt(Float_t(nPhot)*prob*(1.-prob)));
+ nPhE = (Int_t)gRandom->Gaus(prob*Float_t(nPhot)+0.5,
+ sqrt(Float_t(nPhot)*prob*(1.-prob)));
else
nPhE = gRandom->Binomial(nPhot,prob);
Float_t charge = TMath::Qe()*fPmGain[pmt]*fBinSize[pmt]/integral;
} // hit loop
} // track loop
loader->UnloadHits();
- } // input loop
+}
+
+
+void AliVZERODigitizer::DigitizeSDigits()
+{
+ // Digitize the fTime arrays (SDigits) to the level of
+ // Digits (fAdc arrays)
+ for(Int_t i = 0 ; i < 64; ++i) {
+ for(Int_t j = 0; j < kNClocks; ++j) fAdc[i][j] = 0;
+ fLeadingTime[i] = fTimeWidth[i] = 0;
+ }
Float_t maximum = 0.9*fSignalShape->GetMaximum(0,200); // Not exact, one needs to do this on the convoluted
Float_t integral2 = fSignalShape->Integral(0,200); // function. Anyway the effect is small <10% on the 2.5 ADC thr
for (Int_t ipmt = 0; ipmt < 64; ++ipmt) {
- Float_t thr = fCalibData->GetDiscriThr(ipmt)*kChargePerADC*maximum*fBinSize[ipmt]/integral2;
+ Float_t thr = fCalibData->GetCalibDiscriThr(ipmt,kFALSE)*kChargePerADC*maximum*fBinSize[ipmt]/integral2;
Bool_t ltFound = kFALSE, ttFound = kFALSE;
for (Int_t iBin = 0; iBin < fNBins[ipmt]; ++iBin) {
- Float_t t = fBinSize[ipmt]*Float_t(iBin+0.5);
+ Float_t t = fBinSize[ipmt]*Float_t(iBin);
if (fTime[ipmt][iBin] > thr) {
if (!ltFound && (iBin < fNBinsLT[ipmt])) {
ltFound = kTRUE;
}
}
}
- Float_t tadc = t - kADCTimeOffset;
- Int_t clock = kNClocks - Int_t(tadc/25.0) - 1;
+ Float_t tadc = t - fClockOffset[ipmt];
+ Int_t clock = kNClocks/2 - Int_t(tadc/25.0);
if (clock >= 0 && clock < kNClocks)
fAdc[ipmt][clock] += fTime[ipmt][iBin]/kChargePerADC;
}
- Int_t board = ipmt / 8;
+ AliDebug(1,Form("Channel %d Offset %f Time %f",ipmt,fClockOffset[ipmt],fLeadingTime[ipmt]));
+ Int_t board = AliVZEROCalibData::GetBoardNumber(ipmt);
if (ltFound && ttFound) {
fTimeWidth[ipmt] = fCalibData->GetWidthResolution(board)*
Float_t(Int_t(fTimeWidth[ipmt]/fCalibData->GetWidthResolution(board)));
}
}
- Int_t evenOrOdd = gRandom->Integer(2);
+ fEvenOrOdd = gRandom->Integer(2);
for (Int_t j=0; j<64; ++j){
for (Int_t iClock = 0; iClock < kNClocks; ++iClock) {
- Int_t integrator = (iClock + evenOrOdd) % 2;
+ Int_t integrator = (iClock + fEvenOrOdd) % 2;
+ AliDebug(1,Form("ADC %d %d %f",j,iClock,fAdc[j][iClock]));
fAdc[j][iClock] += gRandom->Gaus(fAdcPedestal[j][integrator], fAdcSigma[j][integrator]);
}
}
- // Now add digits to the digit Tree
+}
+
+void AliVZERODigitizer::WriteDigits(AliLoader *loader)
+{
+ // Take fAdc arrays filled by the previous
+ // method and produce and add digits to the digit Tree
+
+ loader->LoadDigits("UPDATE");
+ if (!loader->TreeD()) loader->MakeTree("D");
+ loader->MakeDigitsContainer();
+ TTree* treeD = loader->TreeD();
+ DigitsArray();
+ treeD->Branch("VZERODigit", &fDigits);
+
+ Short_t *chargeADC = new Short_t[kNClocks];
for (Int_t i=0; i<64; i++) {
- // printf(" cell %d adc ",i);
- // for (Int_t j = 0; j < kNClocks; ++j)
- // printf("%d ", Int_t(fAdc[i][j]));
- // printf("\n");
- Float_t totADC = 0;
- for (Int_t j = 8; j <= 11; ++j) {
+ for (Int_t j = 0; j < kNClocks; ++j) {
Int_t tempadc = Int_t(fAdc[i][j]);
if (tempadc > 1023) tempadc = 1023;
- Int_t integrator = (j + evenOrOdd) % 2;
- if ((Float_t(tempadc) - fAdcPedestal[i][integrator]) > (2.*fAdcSigma[i][integrator]))
- totADC += (Float_t(tempadc) - fAdcPedestal[i][integrator]);
+ chargeADC[j] = tempadc;
}
- totADC += fAdcPedestal[i][(10+evenOrOdd)%2];
- AddDigit(i, totADC, fLeadingTime[i], fTimeWidth[i], Bool_t((10+evenOrOdd)%2));
+ AddDigit(i, fLeadingTime[i], fTimeWidth[i], Bool_t((10+fEvenOrOdd)%2), chargeADC, fLabels[i]);
}
+ delete [] chargeADC;
treeD->Fill();
- outLoader->WriteDigits("OVERWRITE");
- outLoader->UnloadDigits();
- ResetDigit();
+ loader->WriteDigits("OVERWRITE");
+ loader->UnloadDigits();
+ ResetDigits();
}
-//____________________________________________________________________________
-void AliVZERODigitizer::AddDigit(Int_t PMnumber, Float_t adc, Float_t time, Float_t width, Bool_t integrator)
- {
-
-// Adds Digit
-
- TClonesArray &ldigits = *fDigits;
-
- new(ldigits[fNdigits++]) AliVZEROdigit(PMnumber,adc,time,width,kFALSE,kFALSE,integrator);
-
-}
-//____________________________________________________________________________
-void AliVZERODigitizer::ResetDigit()
+void AliVZERODigitizer::WriteSDigits(AliLoader *loader)
{
+ // Take fTime arrays filled by the previous
+ // method and produce and add sdigits to the sdigit Tree
-// Clears Digits
+ loader->LoadSDigits("UPDATE");
- fNdigits = 0;
- if (fDigits) fDigits->Delete();
-}
+ if (!loader->TreeS()) loader->MakeTree("S");
+ loader->MakeSDigitsContainer();
+ TTree* treeS = loader->TreeS();
+ SDigitsArray();
+ treeS->Branch("VZEROSDigit", &fDigits);
+
+ for (Int_t ipmt = 0; ipmt < 64; ++ipmt) {
+ AddSDigit(ipmt,fNBins[ipmt],fTime[ipmt],fLabels[ipmt]);
+ }
-//____________________________________________________________________________
-AliVZEROCalibData* AliVZERODigitizer::GetCalibData() const
+ treeS->Fill();
+ loader->WriteSDigits("OVERWRITE");
+ loader->UnloadSDigits();
+ ResetDigits();
+}
+void AliVZERODigitizer::ReadSDigits()
{
- AliCDBManager *man = AliCDBManager::Instance();
-
- AliCDBEntry *entry=0;
-
- entry = man->Get("VZERO/Calib/Data");
-
-// if(!entry){
-// AliWarning("Load of calibration data from default storage failed!");
-// AliWarning("Calibration data will be loaded from local storage ($ALICE_ROOT)");
-// Int_t runNumber = man->GetRun();
-// entry = man->GetStorage("local://$ALICE_ROOT/OCDB")
-// ->Get("VZERO/Calib/Data",runNumber);
-//
-// }
-
- // Retrieval of data in directory VZERO/Calib/Data:
-
-
- AliVZEROCalibData *calibdata = 0;
+ // Read SDigits which are then to precessed
+ // in the following method
+ for(Int_t i = 0 ; i < 64; ++i) {
+ memset(fTime[i],0,fNBins[i]*sizeof(Float_t));
+ fLabels[i][0] = fLabels[i][1] = fLabels[i][2] = -1;
+ }
- if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
- if (!calibdata) AliFatal("No calibration data from calibration database !");
+ // Loop over input files
+ Int_t nFiles= fDigInput->GetNinputs();
+ for (Int_t inputFile = 0; inputFile < nFiles; inputFile++) {
+ // Get the current loader
+ AliRunLoader* currentLoader =
+ AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(inputFile));
- return calibdata;
-
-}
+ AliLoader *loader = currentLoader->GetLoader("VZEROLoader");
+ loader->LoadSDigits("READ");
+
+ // Get the tree of summable digits
+ TTree* sdigitsTree = loader->TreeS();
+ if (!sdigitsTree) {
+ AliError("No sdigit tree from digInput");
+ continue;
+ }
-double AliVZERODigitizer::SignalShape(double *x, double *par)
-{
- // this function simulates the time
- // of arrival of the photons at the
- // photocathode
- Double_t xx = x[0];
- if (xx <= par[0]) return 0;
- Double_t a = 1./TMath::Power((xx-par[0])/par[1],1./par[2]);
- if (xx <= par[3]) return a;
- Double_t b = 1./TMath::Power((xx-par[3])/par[4],1./par[5]);
- Double_t f = a*b/(a+b);
- AliDebug(100,Form("x=%f func=%f",xx,f));
- return f;
-}
+ // Get the branch
+ TBranch* sdigitsBranch = sdigitsTree->GetBranch("VZEROSDigit");
+ if (!sdigitsBranch) {
+ AliError("Failed to get sdigit branch");
+ return;
+ }
-double AliVZERODigitizer::PMResponse(double *x, double * /* par */)
-{
- // this function describes the
- // PM time response to a single
- // photoelectron
- Double_t xx = x[0]+kPMRespTime;
- return xx*xx*TMath::Exp(-xx*xx/(kPMRespTime*kPMRespTime));
+ // Set the branch address
+ TClonesArray *sdigitsArray = NULL;
+ sdigitsBranch->SetAddress(&sdigitsArray);
+
+ // Sum contributions from the sdigits
+ // Get number of entries in the tree
+ Int_t nentries = Int_t(sdigitsBranch->GetEntries());
+ for (Int_t entry = 0; entry < nentries; ++entry) {
+ sdigitsBranch->GetEntry(entry);
+ // Get the number of sdigits
+ Int_t nsdigits = sdigitsArray->GetEntries();
+ for (Int_t sdigit = 0; sdigit < nsdigits; sdigit++) {
+ AliVZEROSDigit* sDigit = static_cast<AliVZEROSDigit*>(sdigitsArray->UncheckedAt(sdigit));
+ Int_t pmNumber = sDigit->PMNumber();
+ Int_t nbins = sDigit->GetNBins();
+ if (nbins != fNBins[pmNumber]) {
+ AliError(Form("Incompatible number of bins between digitizer (%d) and sdigit (%d) for PM %d! Skipping sdigit!",
+ fNBins[pmNumber],nbins,pmNumber));
+ continue;
+ }
+ // Sum the charges
+ Float_t *charges = sDigit->GetCharges();
+ for(Int_t iBin = 0; iBin < nbins; ++iBin) fTime[pmNumber][iBin] += charges[iBin];
+ // and the labels
+ Int_t *labels = sDigit->GetTracks();
+ Int_t j = 0;
+ for(Int_t i = 0; i < 3; ++i) {
+ if (fLabels[pmNumber][i] < 0) {
+ if (labels[j] < 0) break;
+ fLabels[pmNumber][i] = labels[j];
+ j++;
+ }
+ }
+ }
+ }
+ loader->UnloadSDigits();
+ }
}
-double AliVZERODigitizer::SinglePhESpectrum(double *x, double * /* par */)
+//____________________________________________________________________
+TClonesArray*
+AliVZERODigitizer::DigitsArray()
{
- // this function describes the
- // PM amplitude response to a single
- // photoelectron
- Double_t xx = x[0];
- if (xx < 0) return 0;
- return (TMath::Poisson(xx,kPMNbOfSecElec)+kPMTransparency*TMath::Poisson(xx,1.0));
+ // Initialize digit array if not already and
+ // return pointer to it.
+ if (!fDigits) {
+ fDigits = new TClonesArray("AliVZEROdigit", 64);
+ fNdigits = 0;
+ }
+ return fDigits;
}
-Int_t AliVZERODigitizer::Cell2Pmt(Int_t cell) const
+//____________________________________________________________________
+TClonesArray*
+AliVZERODigitizer::SDigitsArray()
{
- // The method maps the scintillator
- // indexes to the PM ones
- if (cell < 0 || cell >= 80) {
- AliError(Form("Wrong VZERO cell index %d",cell));
- return -1;
+ // Initialize sdigit array if not already and
+ // return pointer to it.
+ if (!fDigits) {
+ fDigits = new TClonesArray("AliVZEROSDigit", 64);
+ fNdigits = 0;
}
- if (cell < 16) return cell;
- if (cell < 48) return 8 + cell/2;
- return cell - 16;
+ return fDigits;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff