}
//____________________________________________________________________________
-void AliEMCALDigitizer::Digitize(Int_t event)
-{
-
+void AliEMCALDigitizer::Digitize(Int_t event)
+{
// Makes the digitization of the collected summable digits
// for this it first creates the array of all EMCAL modules
- // filled with noise and after that adds contributions from
- // SDigits. This design helps to avoid scanning over the
+ // filled with noise and after that adds contributions from
+ // SDigits. This design helps to avoid scanning over the
// list of digits to add contribution of any new SDigit.
//
// JLK 26-Jun-2008
AliRunLoader *rl = AliRunLoader::Instance();
AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
- if(emcalLoader){
- Int_t readEvent = event ;
+ if(emcalLoader)
+ {
+ Int_t readEvent = event ;
// fDigInput is data member from AliDigitizer
- if (fDigInput)
- readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetCurrentEventNumber() ;
- AliDebug(1,Form("Adding event %d from input stream 0 %s %s",
- readEvent, GetTitle(), fEventFolderName.Data())) ;
+ if (fDigInput)
+ readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetCurrentEventNumber() ;
+ AliDebug(1,Form("Adding event %d from input stream 0 %s %s",
+ readEvent, GetTitle(), fEventFolderName.Data())) ;
rl->GetEvent(readEvent);
- TClonesArray * digits = emcalLoader->Digits() ;
+ TClonesArray * digits = emcalLoader->Digits() ;
digits->Delete() ; //correct way to clear array when memory is
//allocated by objects stored in array
// Load Geometry
AliEMCALGeometry *geom = 0;
- if (!rl->GetAliRun()) {
+ if (!rl->GetAliRun())
+ {
AliFatal("Could not get AliRun from runLoader");
}
else{
sdigArray->AddAt(emcalLoader->SDigits(), 0) ;
Int_t i ;
Int_t embed = kFALSE;
- for(i = 1 ; i < fInput ; i++){
- TString tempo(fEventNames[i]) ;
+ for(i = 1 ; i < fInput ; i++)
+ {
+ TString tempo(fEventNames[i]) ;
tempo += i ;
-
- AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ;
-
- if (rl2==0)
- rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ;
-
- if (fDigInput)
- readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(i))->GetCurrentEventNumber() ;
- Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
+
+ AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ;
+
+ if (rl2==0)
+ rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ;
+
+ if (fDigInput)
+ readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(i))->GetCurrentEventNumber() ;
+ Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
rl2->LoadSDigits();
// rl2->LoadDigits();
rl2->GetEvent(readEvent);
if(rl2->GetDetectorLoader("EMCAL"))
+ {
+ AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL"));
+
+ if(emcalLoader2)
{
- AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL"));
-
- if(emcalLoader2) {
- //Merge 2 simulated sdigits
- if(emcalLoader2->SDigits()){
- TClonesArray* sdigits2 = emcalLoader2->SDigits();
- sdigArray->AddAt(sdigits2, i) ;
- // Check if first sdigit is of embedded type, if so, handle the sdigits differently:
- // do not smear energy of embedded, do not add noise to any sdigits
- if(sdigits2->GetEntriesFast()>0){
- //printf("Merged digit type: %d\n",dynamic_cast<AliEMCALDigit*> (sdigits2->At(0))->GetType());
- AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*> (sdigits2->At(0));
- if(digit2 && digit2->GetType()==AliEMCALDigit::kEmbedded){
- embed = kTRUE;
- }
- }
+ //Merge 2 simulated sdigits
+ if(emcalLoader2->SDigits()){
+ TClonesArray* sdigits2 = emcalLoader2->SDigits();
+ sdigArray->AddAt(sdigits2, i) ;
+ // Check if first sdigit is of embedded type, if so, handle the sdigits differently:
+ // do not smear energy of embedded, do not add noise to any sdigits
+ if(sdigits2->GetEntriesFast()>0)
+ {
+ //printf("Merged digit type: %d\n",dynamic_cast<AliEMCALDigit*> (sdigits2->At(0))->GetType());
+ AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*> (sdigits2->At(0));
+ if( digit2 && digit2->GetType()==AliEMCALDigit::kEmbedded ) embed = kTRUE;
}
-
- }//loader2
- else AliFatal("EMCAL Loader of second event not available!");
+ }
- }
+ }//loader2
+ else AliFatal("EMCAL Loader of second event not available!");
+
+ }
else Fatal("Digitize", "Loader of second input not found");
}// input loop
-
+
//Find the first tower with signal
- Int_t nextSig = nEMC + 1 ;
- TClonesArray * sdigits ;
+ Int_t nextSig = nEMC + 1 ;
+ TClonesArray * sdigits ;
for(i = 0 ; i < fInput ; i++){
if(i > 0 && embed) continue;
sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
- if(sdigits){
- if (sdigits->GetEntriesFast() ){
- AliEMCALDigit *sd = dynamic_cast<AliEMCALDigit *>(sdigits->At(0));
- if(sd){
- Int_t curNext = sd->GetId() ;
- if(curNext < nextSig)
- nextSig = curNext ;
- AliDebug(1,Form("input %i : #sdigits %i \n",
- i, sdigits->GetEntriesFast()));
-
- }//First entry is not NULL
- else {
- AliDebug(1, "NULL sdigit pointer");
- continue;
- }
- }//There is at least one entry
- else {
- AliDebug(1, "NULL sdigits array");
- continue;
- }
+ if(sdigits)
+ {
+ if (sdigits->GetEntriesFast() )
+ {
+ AliEMCALDigit *sd = dynamic_cast<AliEMCALDigit *>(sdigits->At(0));
+ if(sd)
+ {
+ Int_t curNext = sd->GetId() ;
+ if(curNext < nextSig)
+ nextSig = curNext ;
+ AliDebug(1,Form("input %i : #sdigits %i \n",
+ i, sdigits->GetEntriesFast()));
+
+ }//First entry is not NULL
+ else
+ {
+ AliDebug(1, "NULL sdigit pointer");
+ continue;
+ }
+ }//There is at least one entry
+ else
+ {
+ AliDebug(1, "NULL sdigits array");
+ continue;
+ }
}// SDigits array exists
- else {
- AliDebug(1,"Null sdigit pointer");
- continue;
+ else
+ {
+ AliDebug(1,"Null sdigit pointer");
+ continue;
}
}// input loop
AliDebug(1,Form("FIRST tower with signal %i \n", nextSig));
-
+
TArrayI index(fInput) ;
index.Reset() ; //Set all indexes to zero
-
+
AliEMCALDigit * digit ;
AliEMCALDigit * curSDigit ;
-
- //Put Noise contribution, smear time and energy
+
+ //Put Noise contribution, smear time and energy
Float_t timeResolution = 0;
- for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC
-
+ for(absID = 0; absID < nEMC; absID++)
+ { // Nov 30, 2006 by PAI; was from 1 to nEMC
+
if (IsDead(absID)) continue; // Don't instantiate dead digits
-
- Float_t energy = 0 ;
-
+
+ Float_t energy = 0 ;
+
// amplitude set to zero, noise will be added later
Float_t noiseTime = 0.;
if(!embed) noiseTime = TimeOfNoise(); //No need for embedded events?
new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0., noiseTime,kFALSE); // absID-1->absID
//look if we have to add signal?
digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID
-
- if (digit) {
+
+ if (digit)
+ {
+ if(absID==nextSig)
+ {
+ // Calculate time as time of the largest digit
+ Float_t time = digit->GetTime() ;
+ Float_t aTime= digit->GetAmplitude() ;
- if(absID==nextSig){
-
- // Calculate time as time of the largest digit
- Float_t time = digit->GetTime() ;
- Float_t aTime= digit->GetAmplitude() ;
-
- // loop over input
- Int_t nInputs = fInput;
- if(embed) nInputs = 1; // In case of embedding, merge later real digits, do not smear energy and time of data
- for(i = 0; i< nInputs ; i++){ //loop over (possible) merge sources
- TClonesArray* sdtclarr = dynamic_cast<TClonesArray *>(sdigArray->At(i));
- if(sdtclarr) {
- Int_t sDigitEntries = sdtclarr->GetEntriesFast();
-
- if(sDigitEntries > index[i] )
- curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ;
- else
- curSDigit = 0 ;
-
- //May be several digits will contribute from the same input
- while(curSDigit && (curSDigit->GetId() == absID)){
- //Shift primary to separate primaries belonging different inputs
- Int_t primaryoffset ;
- if(fDigInput)
- primaryoffset = fDigInput->GetMask(i) ;
- else
- primaryoffset = i ;
- curSDigit->ShiftPrimary(primaryoffset) ;
-
- if(curSDigit->GetAmplitude()>aTime) {
- aTime = curSDigit->GetAmplitude();
- time = curSDigit->GetTime();
- }
-
- *digit = *digit + *curSDigit ; //adds amplitudes of each digit
-
- index[i]++ ;
-
- if( sDigitEntries > index[i] )
- curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ;
- else
- curSDigit = 0 ;
- }// while
- }// source exists
- }// loop over merging sources
-
-
- //Here we convert the summed amplitude to an energy in GeV only for simulation or mixing of simulations
- energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV
-
- // add fluctuations for photo-electron creation
- // corrected fluctuations after comparison with beam test, Paraskevi Ganoti (06/11/2011)
- Float_t fluct = static_cast<Float_t>((energy*fMeanPhotonElectron)/fGainFluctuations);
- energy *= static_cast<Float_t>(gRandom->Poisson(fluct)) / fluct ;
-
- //calculate and set time
- digit->SetTime(time) ;
-
- //Find next signal module
- nextSig = nEMC + 1 ;
- for(i = 0 ; i < nInputs ; i++){
- sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
+ // loop over input
+ Int_t nInputs = fInput;
+ if(embed) nInputs = 1; // In case of embedding, merge later real digits, do not smear energy and time of data
+ for(i = 0; i< nInputs ; i++)
+ { //loop over (possible) merge sources
+ TClonesArray* sdtclarr = dynamic_cast<TClonesArray *>(sdigArray->At(i));
+ if(sdtclarr) {
+ Int_t sDigitEntries = sdtclarr->GetEntriesFast();
+
+ if(sDigitEntries > index[i] )
+ curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ;
+ else
+ curSDigit = 0 ;
- if(sdigits){
- Int_t curNext = nextSig ;
- if(sdigits->GetEntriesFast() > index[i])
+ //May be several digits will contribute from the same input
+ while(curSDigit && (curSDigit->GetId() == absID))
+ {
+ //Shift primary to separate primaries belonging different inputs
+ Int_t primaryoffset ;
+ if(fDigInput)
+ primaryoffset = fDigInput->GetMask(i) ;
+ else
+ primaryoffset = i ;
+ curSDigit->ShiftPrimary(primaryoffset) ;
+
+ if(curSDigit->GetAmplitude()>aTime)
{
- AliEMCALDigit * tmpdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]));
- if(tmpdigit)
- {
- curNext = tmpdigit->GetId() ;
- }
+ aTime = curSDigit->GetAmplitude();
+ time = curSDigit->GetTime();
}
- if(curNext < nextSig) nextSig = curNext ;
- }// sdigits exist
- } // input loop
-
- }//absID==nextSig
+
+ *digit = *digit + *curSDigit ; //adds amplitudes of each digit
+
+ index[i]++ ;
+
+ if( sDigitEntries > index[i] )
+ curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ;
+ else
+ curSDigit = 0 ;
+ }// while
+ }// source exists
+ }// loop over merging sources
- // add the noise now, no need for embedded events with real data
- if(!embed)
- energy += gRandom->Gaus(0., fPinNoise) ;
-
- // JLK 26-June-2008
- //Now digitize the energy according to the fSDigitizer method,
- //which merely converts the energy to an integer. Later we will
- //check that the stored value matches our allowed dynamic ranges
- digit->SetAmplitude(fSDigitizer->Digitize(energy)) ;
+ //Here we convert the summed amplitude to an energy in GeV only for simulation or mixing of simulations
+ energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV
- //Set time resolution with final energy
- timeResolution = GetTimeResolution(energy);
- digit->SetTime(gRandom->Gaus(digit->GetTime(),timeResolution) ) ;
- AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n",
- absID, energy, nextSig));
- //Add delay to time
- digit->SetTime(digit->GetTime()+fTimeDelay) ;
+ // add fluctuations for photo-electron creation
+ // corrected fluctuations after comparison with beam test, Paraskevi Ganoti (06/11/2011)
+ Float_t fluct = static_cast<Float_t>((energy*fMeanPhotonElectron)/fGainFluctuations);
+ energy *= static_cast<Float_t>(gRandom->Poisson(fluct)) / fluct ;
+ //calculate and set time
+ digit->SetTime(time) ;
+
+ //Find next signal module
+ nextSig = nEMC + 1 ;
+ for(i = 0 ; i < nInputs ; i++){
+ sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
+
+ if(sdigits){
+ Int_t curNext = nextSig ;
+ if(sdigits->GetEntriesFast() > index[i])
+ {
+ AliEMCALDigit * tmpdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]));
+ if(tmpdigit)
+ {
+ curNext = tmpdigit->GetId() ;
+ }
+ }
+ if(curNext < nextSig) nextSig = curNext ;
+ }// sdigits exist
+ } // input loop
+
+ }//absID==nextSig
+
+ // add the noise now, no need for embedded events with real data
+ if(!embed)
+ energy += gRandom->Gaus(0., fPinNoise) ;
+
+
+ // JLK 26-June-2008
+ //Now digitize the energy according to the fSDigitizer method,
+ //which merely converts the energy to an integer. Later we will
+ //check that the stored value matches our allowed dynamic ranges
+ digit->SetAmplitude(fSDigitizer->Digitize(energy)) ;
+
+ //Set time resolution with final energy
+ timeResolution = GetTimeResolution(energy);
+ digit->SetTime(gRandom->Gaus(digit->GetTime(),timeResolution) ) ;
+ AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n",
+ absID, energy, nextSig));
+ //Add delay to time
+ digit->SetTime(digit->GetTime()+fTimeDelay) ;
+
}// Digit pointer exists
- else{
- AliDebug(1,"Digit pointer is null");
- }
- } // for(absID = 0; absID < nEMC; absID++)
+ else AliDebug(1,"Digit pointer is null");
- //ticks->Delete() ;
- //delete ticks ;
-
- //Embed simulated amplitude (and time?) to real data digits
- if(embed){
- for(Int_t input = 1; input<fInput; input++){
- TClonesArray *realDigits = dynamic_cast<TClonesArray*> (sdigArray->At(input));
- if(!realDigits){
- AliDebug(1,"No sdigits to merge\n");
- continue;
- }
- for(Int_t i2 = 0 ; i2 < realDigits->GetEntriesFast() ; i2++){
- AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*>( realDigits->At(i2) ) ;
- if(digit2){
- digit = dynamic_cast<AliEMCALDigit*>( digits->At(digit2->GetId()) ) ;
- if(digit){
-
- // Put the embedded cell energy in same units as simulated sdigits -> transform to energy units
- // and multiply to get a big int.
- Float_t time2 = digit2->GetTime();
- Float_t e2 = digit2->GetAmplitude();
- CalibrateADCTime(e2,time2,digit2->GetId());
- Float_t amp2 = fSDigitizer->Digitize(e2);
-
- Float_t e0 = digit ->GetAmplitude();
- if(e0>0.01)
- AliDebug(1,Form("digit 1: Abs ID %d, amp %f, type %d, time %e; digit2: Abs ID %d, amp %f, type %d, time %e\n",
- digit ->GetId(),digit ->GetAmplitude(), digit ->GetType(), digit->GetTime(),
- digit2->GetId(),amp2, digit2->GetType(), time2 ));
-
- // Sum amplitudes, change digit amplitude
- digit->SetAmplitude( digit->GetAmplitude() + amp2);
- // Rough assumption, assign time of the largest of the 2 digits,
- // data or signal to the final digit.
- if(amp2 > digit->GetAmplitude()) digit->SetTime(time2);
- //Mark the new digit as embedded
- digit->SetType(AliEMCALDigit::kEmbedded);
-
- if(digit2->GetAmplitude()>0.01 && e0> 0.01 )
- AliDebug(1,Form("Embedded digit: Abs ID %d, amp %f, type %d\n",
- digit->GetId(), digit->GetAmplitude(), digit->GetType()));
- }//digit2
- }//digit2
- }//loop digit 2
+ } // for(absID = 0; absID < nEMC; absID++)
+
+ //Embed simulated amplitude (and time?) to real data digits
+ if(embed)
+ {
+ for(Int_t input = 1; input<fInput; input++)
+ {
+ TClonesArray *realDigits = dynamic_cast<TClonesArray*> (sdigArray->At(input));
+ if(!realDigits)
+ {
+ AliDebug(1,"No sdigits to merge\n");
+ continue;
+ }
+
+ for(Int_t i2 = 0 ; i2 < realDigits->GetEntriesFast() ; i2++)
+ {
+ AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*>( realDigits->At(i2) ) ;
+ if(digit2)
+ {
+ digit = dynamic_cast<AliEMCALDigit*>( digits->At(digit2->GetId()) ) ;
+ if(digit)
+ {
+ // Put the embedded cell energy in same units as simulated sdigits -> transform to energy units
+ // and multiply to get a big int.
+ Float_t time2 = digit2->GetTime();
+ Float_t e2 = digit2->GetAmplitude();
+ CalibrateADCTime(e2,time2,digit2->GetId());
+ Float_t amp2 = fSDigitizer->Digitize(e2);
+
+ Float_t e0 = digit ->GetAmplitude();
+ if(e0>0.01)
+ AliDebug(1,Form("digit 1: Abs ID %d, amp %f, type %d, time %e; digit2: Abs ID %d, amp %f, type %d, time %e\n",
+ digit ->GetId(),digit ->GetAmplitude(), digit ->GetType(), digit->GetTime(),
+ digit2->GetId(),amp2, digit2->GetType(), time2 ));
+
+ // Sum amplitudes, change digit amplitude
+ digit->SetAmplitude( digit->GetAmplitude() + amp2);
+ // Rough assumption, assign time of the largest of the 2 digits,
+ // data or signal to the final digit.
+ if(amp2 > digit->GetAmplitude()) digit->SetTime(time2);
+ //Mark the new digit as embedded
+ digit->SetType(AliEMCALDigit::kEmbedded);
+
+ if(digit2->GetAmplitude()>0.01 && e0> 0.01 )
+ AliDebug(1,Form("Embedded digit: Abs ID %d, amp %f, type %d\n",
+ digit->GetId(), digit->GetAmplitude(), digit->GetType()));
+ }//digit2
+ }//digit2
+ }//loop digit 2
}//input loop
}//embed
-
+
//JLK is it better to call Clear() here?
delete sdigArray ; //We should not delete its contents
-
+
//remove digits below thresholds
// until 10-02-2010 remove digits with energy smaller than fDigitThreshold 3*fPinNoise
// now, remove digits with Digitized ADC smaller than fDigitThreshold = 3,
// before merge in the same loop real data digits if available
Float_t energy = 0;
Float_t time = 0;
- for(i = 0 ; i < nEMC ; i++){
+ for(i = 0 ; i < nEMC ; i++)
+ {
digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ;
- if(digit){
-
- //Then get the energy in GeV units.
- energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ;
- //Then digitize using the calibration constants of the ocdb
- Float_t ampADC = energy;
- DigitizeEnergyTime(ampADC, time, digit->GetId()) ;
- if(ampADC < fDigitThreshold)
- digits->RemoveAt(i) ;
-
+ if(digit)
+ {
+ //Then get the energy in GeV units.
+ energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ;
+ //Then digitize using the calibration constants of the ocdb
+ Float_t ampADC = energy;
+ DigitizeEnergyTime(ampADC, time, digit->GetId()) ;
+ if(ampADC < fDigitThreshold)
+ digits->RemoveAt(i) ;
+
}// digit exists
} // digit loop
-
+
digits->Compress() ;
-
+
Int_t ndigits = digits->GetEntriesFast() ;
-
+
//JLK 26-June-2008
//After we have done the summing and digitizing to create the
//digits, now we want to calibrate the resulting amplitude to match
//the dynamic range of our real data.
- for (i = 0 ; i < ndigits ; i++) {
+ for (i = 0 ; i < ndigits ; i++)
+ {
digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ;
- if(digit){
- digit->SetIndexInList(i) ;
- energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ;
- time = digit->GetTime();
- Float_t ampADC = energy;
- DigitizeEnergyTime(ampADC, time, digit->GetId());
- digit->SetAmplitude(ampADC) ;
- digit->SetTime(time);
- // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude());
+ if(digit)
+ {
+ digit->SetIndexInList(i) ;
+ energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ;
+ time = digit->GetTime();
+ Float_t ampADC = energy;
+ DigitizeEnergyTime(ampADC, time, digit->GetId());
+ digit->SetAmplitude(ampADC) ;
+ digit->SetTime(time);
+ // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude());
}// digit exists
}//Digit loop
-
+
}
else AliFatal("EMCALLoader is NULL!") ;
//_____________________________________________________________________
void AliEMCALDigitizer::DigitizeEnergyTime(Float_t & energy, Float_t & time, const Int_t absId)
-{
+{
// JLK 26-June-2008
// Returns digitized value of the energy in a cell absId
// using the calibration constants stored in the OCDB
// Load Geometry
const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
- if (geom==0){
+ if (geom==0)
+ {
AliFatal("Did not get geometry from EMCALLoader");
return;
}
Int_t ieta = -1;
Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ;
if(!bCell)
- Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ;
+ Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ;
geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
- if(fCalibData) {
+ if(fCalibData)
+ {
fADCpedestalEC = fCalibData->GetADCpedestal (iSupMod,ieta,iphi);
fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi);
fADCchannelECDecal = fCalibData->GetADCchannelDecal (iSupMod,ieta,iphi);
fTimeChannel = fCalibData->GetTimeChannel (iSupMod,ieta,iphi,0); // Assign bunch crossing number equal to 0 (has simulation different bunch crossings?)
- fTimeChannelDecal = fCalibData->GetTimeChannelDecal(iSupMod,ieta,iphi);
+ fTimeChannelDecal = fCalibData->GetTimeChannelDecal(iSupMod,ieta,iphi);
}
//Apply calibration to get ADC counts and partial decalibration as especified in OCDB
energy = (energy + fADCpedestalEC)/fADCchannelEC/fADCchannelECDecal ;
time += fTimeChannel-fTimeChannelDecal;
- if(energy > fNADCEC )
- energy = fNADCEC ;
+ if(energy > fNADCEC )
+ energy = fNADCEC ;
}
//_____________________________________________________________________
void AliEMCALDigitizer::Decalibrate(AliEMCALDigit *digit)
-{
- // Load Geometry
- const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance();
+{
+ // Decalibrate, used in Trigger digits
+ // Load Geometry
+ const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance();
- if (!geom) {
- AliFatal("Did not get geometry from EMCALLoader");
- return;
- }
+ if (!geom)
+ {
+ AliFatal("Did not get geometry from EMCALLoader");
+ return;
+ }
- Int_t absId = digit->GetId();
- Int_t iSupMod = -1;
- Int_t nModule = -1;
- Int_t nIphi = -1;
- Int_t nIeta = -1;
- Int_t iphi = -1;
- Int_t ieta = -1;
+ Int_t absId = digit->GetId();
+ Int_t iSupMod = -1;
+ Int_t nModule = -1;
+ Int_t nIphi = -1;
+ Int_t nIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
- Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ;
+ Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ;
- if (!bCell) Error("Decalibrate","Wrong cell id number : absId %i ", absId) ;
- geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
+ if (!bCell) Error("Decalibrate","Wrong cell id number : absId %i ", absId) ;
+ geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
- if (fCalibData) {
- fADCchannelEC = fCalibData->GetADCchannel(iSupMod,ieta,iphi);
- float factor = 1./(fADCchannelEC/0.0162);
+ if (fCalibData)
+ {
+ fADCchannelEC = fCalibData->GetADCchannel(iSupMod,ieta,iphi);
+ Float_t factor = 1./(fADCchannelEC/0.0162);
- *digit = *digit * factor;
- }
+ *digit = *digit * factor;
+ }
}
//_____________________________________________________________________
void AliEMCALDigitizer::CalibrateADCTime(Float_t & adc, Float_t & time, const Int_t absId)
-{
+{
// Returns the energy in a cell absId with a given adc value
// using the calibration constants stored in the OCDB. Time also corrected from parameter in OCDB
// Used in case of embedding, transform ADC counts from real event into energy
// Load Geometry
const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
- if (!geom){
+ if (!geom)
+ {
AliFatal("Did not get geometry from EMCALLoader");
return;
}
Int_t iphi = -1;
Int_t ieta = -1;
Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ;
- if(!bCell)
- Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ;
+ if(!bCell) Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ;
geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
- if(fCalibData) {
+ if(fCalibData)
+ {
fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi);
fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi);
fTimeChannel = fCalibData->GetTimeChannel(iSupMod,ieta,iphi,0);// Assign bunch crossing number equal to 0 (has simulation different bunch crossings?)
adc = adc * fADCchannelEC - fADCpedestalEC;
time -= fTimeChannel;
-
}
//__________________________________________________________________
Float_t AliEMCALDigitizer::GetTimeResolution(Float_t energy) const
{
+ // Assign a smeared time to the digit, from observed distribution in LED system (?).
// From F. Blanco
Float_t res = -1;
- if (energy > 0) {
+ if (energy > 0)
+ {
res = TMath::Sqrt(fTimeResolutionPar0 +
fTimeResolutionPar1/(energy*energy) );
}
return res*1e-9;
}
-//____________________________________________________________________________
+//____________________________________________________________________________
void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG)
{
- // FEE digits afterburner to produce TRG digits
+ // FEE digits afterburner to produce TRG digits
// we are only interested in the FEE digit deposited energy
// to be converted later into a voltage value
AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL"));
if (!emcalLoader) AliFatal("Did not get the Loader");
- const AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance();
+ const AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance();
+
+ // build FOR from simulated digits
+ // and xfer to the corresponding TRU input (mapping)
+
+ TClonesArray* sdigits = emcalLoader->SDigits();
+
+ TClonesArray *digits = (TClonesArray*)sdigits->Clone();
+
+ AliDebug(999,Form("=== %d SDigits to trigger digits ===",digits->GetEntriesFast()));
+
+ TIter NextDigit(digits);
+ while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
+ {
+ if (IsDead(digit)) continue;
+
+ Decalibrate(digit);
+
+ Int_t id = digit->GetId();
+
+ Int_t trgid;
+ if (geom && geom->GetFastORIndexFromCellIndex(id , trgid))
+ {
+ AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id));
- // build FOR from simulated digits
- // and xfer to the corresponding TRU input (mapping)
+ AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid));
- TClonesArray* sdigits = emcalLoader->SDigits();
-
- TClonesArray *digits = (TClonesArray*)sdigits->Clone();
-
- AliDebug(999,Form("=== %d SDigits to trigger digits ===",digits->GetEntriesFast()));
-
- TIter NextDigit(digits);
- while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
+ if (!d)
{
- if (IsDead(digit)) continue;
-
- Decalibrate(digit);
-
- Int_t id = digit->GetId();
-
- Int_t trgid;
- if (geom && geom->GetFastORIndexFromCellIndex(id , trgid))
- {
- AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id));
-
- AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid));
-
- if (!d)
- {
- new((*digitsTMP)[trgid]) AliEMCALDigit(*digit);
- d = (AliEMCALDigit*)digitsTMP->At(trgid);
- d->SetId(trgid);
- }
- else
- {
- *d = *d + *digit;
- }
- }
+ new((*digitsTMP)[trgid]) AliEMCALDigit(*digit);
+ d = (AliEMCALDigit*)digitsTMP->At(trgid);
+ d->SetId(trgid);
}
+ else
+ {
+ *d = *d + *digit;
+ }
+ }
+ }
+
+ if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast());
+
+ Int_t nSamples = geom->GetNTotalTRU();
+ Int_t *timeSamples = new Int_t[nSamples];
+
+ NextDigit = TIter(digitsTMP);
+ while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
+ {
+ if (digit)
+ {
+ Int_t id = digit->GetId();
+ Float_t time = 50.e-9;
- if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast());
-
- Int_t nSamples = geom->GetNTotalTRU();
- Int_t *timeSamples = new Int_t[nSamples];
+ Double_t depositedEnergy = 0.;
+ for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j);
- NextDigit = TIter(digitsTMP);
- while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
- {
- if (digit)
- {
- Int_t id = digit->GetId();
- Float_t time = 50.e-9;
-
- Double_t depositedEnergy = 0.;
- for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j);
-
- if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy);
-
- // FIXME: Check digit time!
- if (depositedEnergy) {
- depositedEnergy += gRandom->Gaus(0., .08);
- DigitalFastOR(time, depositedEnergy, timeSamples, nSamples);
-
- for (Int_t j=0;j<nSamples;j++) {
- if (AliDebugLevel()) printf("timeSamples[%d]: %d\n",j,timeSamples[j]);
- timeSamples[j] = ((j << 16) | (timeSamples[j] & 0xFFFF));
- }
-
- new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples);
-
- if (AliDebugLevel()) ((AliEMCALRawDigit*)digitsTRG->At(digitsTRG->GetEntriesFast() - 1))->Print("");
- }
+ if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy);
+
+ // FIXME: Check digit time!
+ if (depositedEnergy) {
+ depositedEnergy += gRandom->Gaus(0., .08);
+ DigitalFastOR(time, depositedEnergy, timeSamples, nSamples);
+
+ for (Int_t j=0;j<nSamples;j++) {
+ if (AliDebugLevel()) printf("timeSamples[%d]: %d\n",j,timeSamples[j]);
+ timeSamples[j] = ((j << 16) | (timeSamples[j] & 0xFFFF));
}
+
+ new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples);
+
+ if (AliDebugLevel()) ((AliEMCALRawDigit*)digitsTRG->At(digitsTRG->GetEntriesFast() - 1))->Print("");
}
-
- delete [] timeSamples;
-
- if (digits && digits->GetEntriesFast()) digits->Delete();
+ }
+ }
+
+ delete [] timeSamples;
+
+ if (digits && digits->GetEntriesFast()) digits->Delete();
}
-//____________________________________________________________________________
+//____________________________________________________________________________
void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples )
{
- // parameters:
- // id: 0..95
- const Int_t reso = 12; // 11-bit resolution ADC
- const Double_t vFSR = 2.; // Full scale input voltage range 2V (p-p)
-// const Double_t dNe = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30
- const Double_t dNe = 125/1.3; // F-ALTRO max V. FEE: factor 4
- const Double_t vA = .136e-6; // CSP output range: 0.136uV/e-
- const Double_t rise = 50e-9; // rise time (10-90%) of the FastOR signal before shaping
+ // parameters:
+ // id: 0..95
+ const Int_t reso = 12; // 11-bit resolution ADC
+ const Double_t vFSR = 2.; // Full scale input voltage range 2V (p-p)
+//const Double_t dNe = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30
+ const Double_t dNe = 125/1.3; // F-ALTRO max V. FEE: factor 4
+ const Double_t vA = .136e-6; // CSP output range: 0.136uV/e-
+ const Double_t rise = 50e-9; // rise time (10-90%) of the FastOR signal before shaping
- const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz)
+ const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz)
- Double_t vV = 1000. * dE * dNe * vA; // GeV 2 MeV
-
- TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3);
- signalF.SetParameter( 0, vV );
- signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths
- signalF.SetParameter( 2, rise );
+ Double_t vV = 1000. * dE * dNe * vA; // GeV 2 MeV
+
+ TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3);
+ signalF.SetParameter( 0, vV );
+ signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths
+ signalF.SetParameter( 2, rise );
- for (Int_t iTime=0; iTime<nSamples; iTime++)
- {
- // FIXME: add noise (probably not simply Gaussian) according to DA measurements
- // probably plan an access to OCDB
+ for (Int_t iTime=0; iTime<nSamples; iTime++)
+ {
+ // FIXME: add noise (probably not simply Gaussian) according to DA measurements
+ // probably plan an access to OCDB
Double_t sig = signalF.Eval(iTime * kTimeBinWidth);
if (TMath::Abs(sig) > vFSR/2.) {
AliError("Signal overflow!");
AliDebug(999,Form("iTime: %d sig: %f\n",iTime,sig));
timeSamples[iTime] = ((1 << reso) / vFSR) * sig + 0.5;
}
- }
+ }
}
//____________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff