#include "TBenchmark.h"
// --- Standard library ---
-#include <Riostream.h>
// --- AliRoot header files ---
#include "AliRun.h"
AliEMCALDigitizer::AliEMCALDigitizer()
{
// ctor
- InitParameters() ;
+ //InitParameters() ;
fDefaultInit = kTRUE ;
fManager = 0 ; // We work in the standalong mode
SetName(name) ;
fManager = 0 ; // We work in the standalong mode
fSplitFile= 0 ;
- InitParameters() ;
fToSplit = toSplit ;
Init() ;
+ InitParameters() ;
fDefaultInit = kFALSE ;
}
const AliEMCALGeometry *geom = gime->EMCALGeometry() ;
//Making digits with noise, first EMC
- Int_t nEMC = 2*geom->GetNPhi()*geom->GetNZ();
-
- Int_t absID ;
+ Int_t nEMC = 0 ;
+ if (geom->GetNHCLayers() > 0 )
+ nEMC = 3*geom->GetNPhi()*geom->GetNZ(); //max number of digits possible (Preshower, ECAL, HCAL)
+ else
+ nEMC = 2*geom->GetNPhi()*geom->GetNZ(); //max number of digits possible (Preshower, ECAL)
+
+ Int_t absID ;
TString name = geom->GetName() ;
// get first the sdigitizer from the tasks list (must have same name as the digitizer)
const AliEMCALSDigitizer * sDigitizer = gime->SDigitizer(GetName());
if ( !sDigitizer) {
- cerr << "ERROR: AliEMCALDigitizer::Digitize -> SDigitizer with name " << GetName() << " not found " << endl ;
- abort() ;
+ Fatal("Digitize", "SDigitizer with name %s not found", GetName() );
}
// loop through the sdigits posted to the White Board and add them to the noise
if ( (sdigits = (TClonesArray*)folder->FindObject(GetName()) ) ) {
TString fileName(folder->GetName()) ;
fileName.ReplaceAll("_","/") ;
- // cout << "INFO: AliEMCALDigitizer::Digitize -> Adding SDigits "
- // << GetName() << " from " << fileName << endl ;
+ if (gDebug)
+ Info("Digitize", "Adding SDigits %s from %s", GetName(), fileName.Data()) ;
sdigArray->AddAt(sdigits, input) ;
input++ ;
}
}
//Find the first tower with signal
- Int_t nextSig = 200000 ;
+ Int_t nextSig = nEMC + 1 ;
Int_t i;
for(i=0; i<input; i++){
sdigits = (TClonesArray *)sdigArray->At(i) ;
//Put Noise contribution
for(absID = 1; absID <= nEMC; absID++){
- Float_t noise = gRandom->Gaus(0., fPinNoise);
- new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID,sDigitizer->Digitize(noise), TimeOfNoise() ) ;
+ Float_t amp = 0 ;
+ // Float_t noise = TMath::Abs(gRandom->Gaus(0., fPinNoise));
+ //new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID, sDigitizer->Digitize(noise), TimeOfNoise() ) ;
+ // amplitude set to zero, noise will be added later
+ new((*digits)[absID-1]) AliEMCALDigit( -1, -1, absID, 0, TimeOfNoise() ) ;
//look if we have to add signal?
digit = (AliEMCALDigit *) digits->At(absID-1) ;
-
if(absID==nextSig){
//Add SDigits from all inputs
ticks->Clear() ;
curSDigit = 0 ;
}
}
-
+ // add fluctuations for photo-electron creation
+ amp = sDigitizer->Calibrate(digit->GetAmp()) ; // GeV
+ if (gDebug==1)
+ Info("Digitize", "id = %d BEFORE amp = %f\n", digit->GetId(),amp) ;
+ amp *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ;
+ if (gDebug==1)
+ Info("Digitize", "After fluctuation amp = %f\n", amp) ;
//calculate and set time
Float_t time = FrontEdgeTime(ticks) ;
digit->SetTime(time) ;
//Find next signal module
- nextSig = 200000 ;
+ nextSig = nEMC + 1 ;
for(i=0; i<input; i++){
sdigits = ((TClonesArray *)sdigArray->At(i)) ;
Int_t curNext = nextSig ;
if(curNext < nextSig) nextSig = curNext ;
}
}
+ // add the noise now
+
+ if (geom->IsInECAL(digit->GetId()))
+ amp += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ;
+ else if (geom->IsInPRE(digit->GetId()))
+ amp += TMath::Abs(gRandom->Gaus(0., fPinNoise/100.)) ; // arbitrarely divide by 100, assuming that the gain of APD will be higher
+ else if (geom->IsInHCAL(digit->GetId()))
+ amp += TMath::Abs(gRandom->Gaus(0., fPinNoise/10.)) ; // arbitrarely divide by 10, assuming that the gain of APD will be higher
+ if (gDebug==1)
+ Info("Digitize", "After noise amp = %f \n", amp) ;
+ digit->SetAmp(sDigitizer->Digitize(amp)) ;
}
ticks->Delete() ;
delete sdigArray ; //We should not delete its contents
//remove digits below thresholds
- for(absID = 0; absID < nEMC/2 ; absID++){
+ for(absID = 0; absID < nEMC; absID++){
digit = dynamic_cast<AliEMCALDigit*>( digits->At(absID) ) ;
- if(sDigitizer->Calibrate( digit->GetAmp() ) < fTowerDigitThreshold)
+ Float_t threshold = 0 ;
+
+ if (geom->IsInECAL(digit->GetId()))
+ threshold = fDigitThreshold ;
+ else if (geom->IsInPRE(digit->GetId()))
+ threshold = fDigitThreshold / 100. ; // arbitrary see before when noise is added
+ else if (geom->IsInHCAL(digit->GetId()))
+ threshold = fDigitThreshold / 10. ; // arbitrary see before when noise is added
+
+ if(sDigitizer->Calibrate( digit->GetAmp() ) <= threshold)
digits->RemoveAt(absID) ;
- else
+ else {
+ if (gDebug == 1)
+ Info("Digitize", "id = %d, amp = %f, noise = %f", absID, sDigitizer->Calibrate(digit->GetAmp()), fPinNoise) ;
digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
- }
-
-
- for(absID = nEMC/2; absID < nEMC ; absID++){
- digit = dynamic_cast<AliEMCALDigit*>( digits->At(absID) ) ;
- if(sDigitizer->Calibrate( digit->GetAmp() ) < fPreShowerDigitThreshold)
- digits->RemoveAt(absID) ;
- else
- digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
}
+ }
digits->Compress() ;
Int_t ndigits = digits->GetEntriesFast() ;
- digits->Expand(ndigits) ;
+ // digits->Expand(ndigits) ;
//Set indexes in list of digits
for (i = 0 ; i < ndigits ; i++) {
Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t absId)
{
Int_t channel = -999;
- Int_t nphi = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNPhi() ;
- Int_t nz = AliEMCALGetter::GetInstance()->EMCALGeometry()->GetNZ() ;
+ AliEMCALGeometry * geom = AliEMCALGetter::GetInstance()->EMCALGeometry() ;
- if(absId <= nphi*nz){ //digitize as tower
- channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalTower)/fADCchannelTower )) ;
- if(channel > fNADCTower )
- channel = fNADCTower ;
- } else {
- channel = static_cast<Int_t>(TMath::Ceil( (energy + fADCpedestalPreSho)/fADCchannelPreSho )) ;
- if(channel > fNADCPreSho )
- channel = fNADCPreSho ;
+ if(geom->IsInPRE(absId)){ //digitize as PRE section
+ channel = static_cast<Int_t>(TMath::Ceil( (energy + fADCpedestalPRE)/fADCchannelPRE )) ;
+ if(channel > fNADCPRE )
+ channel = fNADCPRE ;
+ }
+ else if(geom->IsInECAL(absId)){ //digitize as ECAL section
+ channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalEC)/fADCchannelEC )) ;
+ if(channel > fNADCEC )
+ channel = fNADCEC ;
+ }
+ else if(geom->IsInHCAL(absId)){ //digitize as HCAL section
+ channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalHC)/fADCchannelHC )) ;
+ if(channel > fNADCHC )
+ channel = fNADCHC ;
}
return channel ;
}
if ( emcalfound ) {
- cerr << "WARNING: AliEMCALDigitizer -> Digits branch with name " << GetName()
- << " already exits" << endl ;
+ Error( "Exec", "Digits branch with name %s already exits", GetName() ) ;
return ;
}
if ( digitizerfound ) {
- cerr << "WARNING: AliEMCALDigitizer -> Digitizer branch with name " << GetName()
- << " already exits" << endl ;
- return ;
+ Error( "Exec", "Digitizer branch with name %s already exit", GetName() ) ;
+ return ;
}
}
}
for(input = 0 ; input < fManager->GetNinputs(); input ++){
TTree * treeS = fManager->GetInputTreeS(input) ;
if(!treeS){
- cerr << "AliEMCALDigitizer -> No Input " << endl ;
+ Error( "Exec", "No Input") ;
return ;
}
gime->ReadTreeS(treeS,input) ;
if(strstr(option,"tim")){
gBenchmark->Stop("EMCALDigitizer");
- cout << "AliEMCALDigitizer:" << endl ;
- cout << " took " << gBenchmark->GetCpuTime("EMCALDigitizer") << " seconds for Digitizing "
- << gBenchmark->GetCpuTime("EMCALDigitizer")/nevents << " seconds per event " << endl ;
- cout << endl ;
+ Info("Exec", "took %f seconds for Digitizing %f seconds per event",
+ gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nevents ) ;
}
}
AliEMCALGetter * gime = AliEMCALGetter::GetInstance(GetTitle(), GetName(), fToSplit) ;
if ( gime == 0 ) {
- cerr << "ERROR: AliEMCALDigitizer::Init -> Could not obtain the Getter object !" << endl ;
+ Error("Init", "Could not obtain the Getter object !" ) ;
return kFALSE;
}
//____________________________________________________________________________
void AliEMCALDigitizer::InitParameters()
{
- fPinNoise = 0.00001 ;
- fTowerDigitThreshold = 0.001 ;
+ fMeanPhotonElectron = 1250 ; // electrons per GeV
+
+ fPinNoise = 0.001 ; // noise equivalent GeV (random choice)
+ fDigitThreshold = fPinNoise * 3; //2 sigma
fTimeResolution = 0.5e-9 ;
fTimeSignalLength = 1.0e-9 ;
- fPreShowerDigitThreshold = fTowerDigitThreshold/25. ;
- fADCchannelTower = 0.000220; // width of one ADC channel in GeV
- fADCpedestalTower = 0.005 ; // GeV
- fNADCTower = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
- fADCchannelPreSho = 0.0000300; // width of one ADC channel in Pre Shower
- fADCpedestalPreSho = 0.005 ; //
- fNADCPreSho = (Int_t) TMath::Power(2,12); // number of channels in Pre ShowerADC
+ fADCchannelEC = 0.000220; // width of one ADC channel in GeV
+ fADCpedestalEC = 0.005 ; // GeV
+ fNADCEC = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
+
+ fADCchannelHC = 0.000220; // width of one ADC channel in GeV
+ fADCpedestalHC = 0.005 ; // GeV
+ fNADCHC = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC
- fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
+ fADCchannelPRE = 0.0000300; // width of one ADC channel in Pre Shower
+ fADCpedestalPRE = 0.005 ; // GeV
+ fNADCPRE = (Int_t) TMath::Power(2,12); // number of channels in Pre ShowerADC
+
+ fTimeThreshold = 0.001*10000000 ; //Means 1 MeV in terms of SDigits amplitude
}
Init() ;
if(fManager){
- cout << "Can not use this method under AliRunDigitizer " << endl ;
+ Error("MixWith", "Cannot use this method under AliRunDigitizer") ;
return ;
}
path += "/" ;
path += GetName() ;
if ( gROOT->FindObjectAny(path.Data()) ) {
- cerr << "WARNING: AliEMCALDigitizer::MixWith -> Entry already exists, do not add" << endl ;
+ Error("MixWith", "Entry already exists, do not add" ) ;
return;
}
if ( !file ) {
file = new TFile(headerFile, "READ") ;
if (!file) {
- cerr << "ERROR: AliEMCALDigitizer::MixWith -> File " << headerFile << " does not exist!" << endl ;
+ Error("MixWith", "File %s does not exist!", headerFile) ;
return ;
}
}
//__________________________________________________________________
void AliEMCALDigitizer::Print(Option_t* option)const {
-
+
+ TString message("\n") ;
+
if( strcmp(GetName(), "") != 0) {
-
- cout << "------------------- "<< GetName() << " -------------" << endl ;
+ message += "------------------- " ;
+ message += GetName() ;
+ message += " -------------" ;
const Int_t nStreams = GetNInputStreams() ;
if (nStreams) {
Int_t index = 0 ;
- for (index = 0 ; index < nStreams ; index++)
- cout << "Adding SDigits " << GetName() << " from " << fManager->GetInputFileName(index, 0) << endl ;
-
- cout << endl ;
- cout << "Writing digits to " << fManager->GetInputFileName(0, 0) << endl ;
+ for (index = 0 ; index < nStreams ; index++) {
+ message += "\nAdding SDigits " ;
+ message += GetName() ;
+ message += " from " ;
+ message += fManager->GetInputFileName(index, 0) ;
+ }
+
+ message += "\nWriting digits to " ;
+ message += fManager->GetInputFileName(0, 0) ;
} else {
-// AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
-// gime->Folder("sdigits") ;
-// cout << "Digitizing sDigits from file(s): " <<endl ;
-// TCollection * folderslist = gime->Folder("sdigits")->GetListOfFolders() ;
-// TIter next(folderslist) ;
-// TFolder * folder = 0 ;
-
-// while ( (folder = (TFolder*)next()) ) {
-// if ( folder->FindObject(GetName()) )
-// cout << "Adding SDigits " << GetName() << " from " << GetSDigitsFileName() << endl ;
-// }
- cout << endl ;
- cout << "Writing digits to " << GetTitle() << endl ;
+ message += "\nWriting digits to " ;
+ message += GetTitle() ;
}
- cout << endl ;
- cout << "With following parameters: " << endl ;
- cout << " Electronics noise in EMC (fPinNoise) = " << fPinNoise << endl ;
- cout << " Threshold in EMC (fTowerDigitThreshold) = " << fTowerDigitThreshold << endl;
- cout << " Threshold in PreShower (fPreShowerDigitThreshold) = " << fPreShowerDigitThreshold << endl ; ;
- cout << "---------------------------------------------------" << endl ;
+ message += "\nWith following parameters: " ;
+ message += "\n Electronics noise in EMC (fPinNoise) = " ;
+ message += fPinNoise ;
+ message += "\n Threshold in EMC (fDigitThreshold) = " ;
+ message += fDigitThreshold ;
+ message += "\n---------------------------------------------------" ;
}
else
- cout << "AliEMCALDigitizer not initialized " << endl ;
+ message += "\nAliEMCALDigitizer not initialized " ;
+
+ Info("Print", message.Data() ) ;
}
//__________________________________________________________________
AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ;
TClonesArray * fDigits = gime->Digits() ;
- cout << "AliEMCALDigitiser:"<< endl ;
- cout << " Number of entries in Digits list " << fDigits->GetEntriesFast() << endl ;
- cout << endl ;
+ TString message("\n") ;
+ message += " Number of entries in Digits list " ;
+ message += fDigits->GetEntriesFast() ;
+
if(strstr(option,"all")){
//loop over digits
AliEMCALDigit * digit;
- cout << "Digit Id " << " Amplitude " << " Index " << " Nprim " << " Primaries list " << endl;
+ message += "\n Id Amplitude Time Index Nprim: Primaries list \n" ;
Int_t index ;
+ char * tempo = new char[8192];
for (index = 0 ; index < fDigits->GetEntries() ; index++) {
digit = (AliEMCALDigit * ) fDigits->At(index) ;
- cout << setw(8) << digit->GetId() << " " << setw(3) << digit->GetAmp() << " "
- << setw(6) << digit->GetIndexInList() << " "
- << setw(5) << digit->GetNprimary() <<" ";
-
+ sprintf(tempo, "\n%6d %8d %6.5e %4d %2d : ",
+ digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
+ message += tempo ;
Int_t iprimary;
- for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++)
- cout << setw(5) << digit->GetPrimary(iprimary+1) << " ";
- cout << endl;
- }
-
+ for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
+ sprintf(tempo, "%d ",digit->GetPrimary(iprimary+1) ) ;
+ message += tempo ;
+ }
+ }
+ delete tempo ;
}
+ Info("PrintDigits", message.Data() ) ;
}
//__________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff