//_________________________________________________________________________
//
//////////////////////////////////////////////////////////////////////////////
-// Class performs digitization of Summable digits
+// Class performs digitization of Summable digits from simulated data
//
-// In addition it performs mixing of summable digits from different events.
+// In addition it performs mixing/embedding of summable digits from different events.
//
-// For each event two branches are created in TreeD:
+// For each event 3 branches are created in TreeD:
// "EMCAL" - list of digits
+// "EMCALTRG" - list of trigger digits
// "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization
//
-// Note, that one cset title for new digits branch, and repeat digitization with
-// another set of parameters.
//
-// Examples of use:
-// root[0] AliEMCALDigitizer * d = new AliEMCALDigitizer() ;
-// root[1] d->ExecuteTask()
-// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// //Digitizes SDigitis in all events found in file galice.root
-//
-// root[2] AliEMCALDigitizer * d1 = new AliEMCALDigitizer("galice1.root") ;
-// // Will read sdigits from galice1.root
-// root[3] d1->MixWith("galice2.root")
-// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
-// // Reads another portion of sdigits from galice2.root
-// root[3] d1->MixWith("galice3.root")
-// // Reads another portion of sdigits from galice3.root
-// root[4] d->ExecuteTask("deb timing")
-// // Reads SDigits from files galice1.root, galice2.root ....
-// // mixes them and stores produced Digits in file galice1.root
-// // deb - prints number of produced digits
-// // deb all - prints list of produced digits
-// // timing - prints time used for digitization
////////////////////////////////////////////////////////////////////////////////////
//
//*-- Author: Sahal Yacoob (LBL)
// based on : AliEMCALDigitizer
// Modif:
// August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
-// of new IO (à la PHOS)
+// of new IO (a la PHOS)
// November 2003 Aleksei Pavlinov : adopted for Shish-Kebab geometry
+// July 2011 GCB: Digitizer modified to accomodate embedding.
+// Time calibration added. Decalibration possibility of energy and time added
//_________________________________________________________________________________
// --- ROOT system ---
-#include "TROOT.h"
-#include "TTree.h"
-#include "TSystem.h"
-#include "TBenchmark.h"
-#include "TList.h"
-#include "TH1.h"
-#include "TBrowser.h"
-#include "TObjectTable.h"
+#include <TROOT.h>
+#include <TTree.h>
+#include <TSystem.h>
+#include <TBenchmark.h>
+#include <TBrowser.h>
+#include <TObjectTable.h>
+#include <TRandom.h>
+#include <TF1.h>
+#include <cassert>
// --- AliRoot header files ---
+#include "AliLog.h"
#include "AliRun.h"
-#include "AliRunDigitizer.h"
+#include "AliDigitizationInput.h"
#include "AliRunLoader.h"
+#include "AliCDBManager.h"
+#include "AliCDBEntry.h"
#include "AliEMCALDigit.h"
#include "AliEMCAL.h"
#include "AliEMCALLoader.h"
#include "AliEMCALDigitizer.h"
#include "AliEMCALSDigitizer.h"
#include "AliEMCALGeometry.h"
-#include "AliEMCALTick.h"
-#include "AliEMCALHistoUtilities.h"
+#include "AliEMCALCalibData.h"
+#include "AliEMCALSimParam.h"
+#include "AliEMCALRawDigit.h"
+
+ namespace
+ {
+ Double_t HeavisideTheta(Double_t x)
+ {
+ Double_t signal = 0.;
+
+ if (x > 0.) signal = 1.;
+
+ return signal;
+ }
+
+ Double_t AnalogFastORFunction(Double_t *x, Double_t *par)
+ {
+ Double_t v0 = par[0];
+ Double_t t0 = par[1];
+ Double_t tr = par[2];
+
+ Double_t R1 = 1000.;
+ Double_t C1 = 33e-12;
+ Double_t R2 = 1800;
+ Double_t C2 = 22e-12;
+
+ Double_t t = x[0];
+
+ return (((0.8*(-((TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-t + t0)/(C1*R1))*
+ TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2)) +
+ C1*C2*R1*R2*(1 - (C2*TMath::Power(TMath::E(),(-t + t0)/(C2*R2))*R2)/(-(C1*R1) + C2*R2)))*v0*
+ HeavisideTheta(t - t0))/tr
+ - (0.8*(C1*C2*R1*R2 -
+ (TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C1*R1))*
+ TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2) +
+ (C1*TMath::Power(C2,2)*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C2*R2))*
+ R1*TMath::Power(R2,2))/(C1*R1 - C2*R2))*v0*
+ HeavisideTheta(t - t0 - 1.25*tr))/tr)/(C2*R1));
+ }
+ }
ClassImp(AliEMCALDigitizer)
-
-
+
+
//____________________________________________________________________________
- AliEMCALDigitizer::AliEMCALDigitizer():AliDigitizer("",""),
- fInput(0),
- fInputFileNames(0x0),
- fEventNames(0x0)
+AliEMCALDigitizer::AliEMCALDigitizer()
+ : AliDigitizer("",""),
+ fDefaultInit(kTRUE),
+ fDigitsInRun(0),
+ fInit(0),
+ fInput(0),
+ fInputFileNames(0x0),
+ fEventNames(0x0),
+ fDigitThreshold(0),
+ fMeanPhotonElectron(0),
+ fGainFluctuations(0),
+ fPinNoise(0),
+ fTimeNoise(0),
+ fTimeDelay(0),
+ fTimeResolutionPar0(0),
+ fTimeResolutionPar1(0),
+ fADCchannelEC(0),
+ fADCpedestalEC(0),
+ fADCchannelECDecal(0),
+ fTimeChannel(0),
+ fTimeChannelDecal(0),
+ fNADCEC(0),
+ fEventFolderName(""),
+ fFirstEvent(0),
+ fLastEvent(0),
+ fCalibData(0x0),
+ fSDigitizer(0x0)
{
// ctor
InitParameters() ;
- fDefaultInit = kTRUE ;
- fManager = 0 ; // We work in the standalong mode
- fEventFolderName = "" ;
+ fDigInput = 0 ; // We work in the standalone mode
}
//____________________________________________________________________________
-AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName):
- AliDigitizer("EMCAL"+AliConfig::Instance()->GetDigitizerTaskName(), alirunFileName),
- fInputFileNames(0), fEventNames(0), fEventFolderName(eventFolderName)
+AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName)
+ : AliDigitizer("EMCALDigitizer", alirunFileName),
+ fDefaultInit(kFALSE),
+ fDigitsInRun(0),
+ fInit(0),
+ fInput(0),
+ fInputFileNames(0),
+ fEventNames(0),
+ fDigitThreshold(0),
+ fMeanPhotonElectron(0),
+ fGainFluctuations(0),
+ fPinNoise(0),
+ fTimeNoise(0),
+ fTimeDelay(0),
+ fTimeResolutionPar0(0),
+ fTimeResolutionPar1(0),
+ fADCchannelEC(0),
+ fADCpedestalEC(0),
+ fADCchannelECDecal(0),
+ fTimeChannel(0),
+ fTimeChannelDecal(0),
+ fNADCEC(0),
+ fEventFolderName(eventFolderName),
+ fFirstEvent(0),
+ fLastEvent(0),
+ fCalibData(0x0),
+ fSDigitizer(0x0)
{
// ctor
-
InitParameters() ;
Init() ;
- fDefaultInit = kFALSE ;
- fManager = 0 ; // We work in the standalong mode
+ fDigInput = 0 ; // We work in the standalone mode
}
//____________________________________________________________________________
-AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d) : AliDigitizer(d)
+AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d)
+ : AliDigitizer(d.GetName(),d.GetTitle()),
+ fDefaultInit(d.fDefaultInit),
+ fDigitsInRun(d.fDigitsInRun),
+ fInit(d.fInit),
+ fInput(d.fInput),
+ fInputFileNames(d.fInputFileNames),
+ fEventNames(d.fEventNames),
+ fDigitThreshold(d.fDigitThreshold),
+ fMeanPhotonElectron(d.fMeanPhotonElectron),
+ fGainFluctuations(d.fGainFluctuations),
+ fPinNoise(d.fPinNoise),
+ fTimeNoise(d.fTimeNoise),
+ fTimeDelay(d.fTimeDelay),
+ fTimeResolutionPar0(d.fTimeResolutionPar0),
+ fTimeResolutionPar1(d.fTimeResolutionPar1),
+ fADCchannelEC(d.fADCchannelEC),
+ fADCpedestalEC(d.fADCpedestalEC),
+ fADCchannelECDecal(d.fADCchannelECDecal),
+ fTimeChannel(d.fTimeChannel), fTimeChannelDecal(d.fTimeChannelDecal),
+ fNADCEC(d.fNADCEC),
+ fEventFolderName(d.fEventFolderName),
+ fFirstEvent(d.fFirstEvent),
+ fLastEvent(d.fLastEvent),
+ fCalibData(d.fCalibData),
+ fSDigitizer(d.fSDigitizer ? new AliEMCALSDigitizer(*d.fSDigitizer) : 0)
{
// copyy ctor
-
- SetName(d.GetName()) ;
- SetTitle(d.GetTitle()) ;
- fDigitThreshold = d.fDigitThreshold ;
- fMeanPhotonElectron = d.fMeanPhotonElectron ;
- fPedestal = d.fPedestal ;
- fSlope = d.fSlope ;
- fPinNoise = d.fPinNoise ;
- fTimeResolution = d.fTimeResolution ;
- fTimeThreshold = d.fTimeThreshold ;
- fTimeSignalLength = d.fTimeSignalLength ;
- fADCchannelEC = d.fADCchannelEC ;
- fADCpedestalEC = d.fADCpedestalEC ;
- fNADCEC = d.fNADCEC ;
- fEventFolderName = d.fEventFolderName;
- }
+}
//____________________________________________________________________________
-AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * rd):
- AliDigitizer(rd,"EMCAL"+AliConfig::Instance()->GetDigitizerTaskName()),
- fEventFolderName(0)
+AliEMCALDigitizer::AliEMCALDigitizer(AliDigitizationInput * rd)
+ : AliDigitizer(rd,"EMCALDigitizer"),
+ fDefaultInit(kFALSE),
+ fDigitsInRun(0),
+ fInit(0),
+ fInput(0),
+ fInputFileNames(0),
+ fEventNames(0),
+ fDigitThreshold(0),
+ fMeanPhotonElectron(0),
+ fGainFluctuations(0),
+ fPinNoise(0.),
+ fTimeNoise(0.),
+ fTimeDelay(0.),
+ fTimeResolutionPar0(0.),
+ fTimeResolutionPar1(0.),
+ fADCchannelEC(0),
+ fADCpedestalEC(0),
+ fADCchannelECDecal(0),
+ fTimeChannel(0),
+ fTimeChannelDecal(0),
+ fNADCEC(0),
+ fEventFolderName(0),
+ fFirstEvent(0),
+ fLastEvent(0),
+ fCalibData(0x0),
+ fSDigitizer(0x0)
{
// ctor Init() is called by RunDigitizer
- fManager = rd ;
- fEventFolderName = fManager->GetInputFolderName(0) ;
- SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0));
+ fDigInput = rd ;
+ fEventFolderName = fDigInput->GetInputFolderName(0) ;
+ SetTitle(dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetFileName(0));
InitParameters() ;
- fDefaultInit = kFALSE ;
}
//____________________________________________________________________________
AliEMCALDigitizer::~AliEMCALDigitizer()
{
- if (AliRunLoader::GetRunLoader()) {
- AliLoader *emcalLoader=0;
- if ((emcalLoader = AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL")))
- emcalLoader->CleanDigitizer();
- }
- else
- AliDebug(1," no runloader present");
+ //dtor
delete [] fInputFileNames ;
delete [] fEventNames ;
-
- if(fHists) delete fHists;
+ if (fSDigitizer) delete fSDigitizer;
}
//____________________________________________________________________________
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 (different for EMC, CPV and PPSD) 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.
- static int isTrd1Geom = -1; // -1 - mean undefined
+ // 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
+ // Note that SDigit energy info is stored as an amplitude, so we
+ // must call the Calibrate() method of the SDigitizer to convert it
+ // back to an energy in GeV before adding it to the Digit
+ //
static int nEMC=0; //max number of digits possible
-
- AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ AliRunLoader *rl = AliRunLoader::Instance();
AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
- Int_t ReadEvent = event ;
- // fManager is data member from AliDigitizer
- if (fManager)
- ReadEvent = dynamic_cast<AliStream*>(fManager->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() ;
- digits->Clear() ;
-
- // Load Geometry
- // const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance();
- rl->LoadgAlice();
- AliRun * gAlice = rl->GetAliRun();
- AliEMCAL * emcal = (AliEMCAL*)gAlice->GetDetector("EMCAL");
- AliEMCALGeometry * geom = emcal->GetGeometry();
-
- if(isTrd1Geom < 0) {
- TString ng(geom->GetName());
- isTrd1Geom = 0;
- if(ng.Contains("SHISH") && ng.Contains("TRD1")) isTrd1Geom = 1;
-
- if(isTrd1Geom == 0) nEMC = geom->GetNPhi()*geom->GetNZ();
- else nEMC = geom->GetNCells();
- AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s | isTrd1Geom %i\n", nEMC, geom->GetName(), isTrd1Geom));
- }
- Int_t absID ;
-
- digits->Expand(nEMC) ;
-
- // get first the sdigitizer from the tasks list (must have same name as the digitizer)
- if ( !emcalLoader->SDigitizer() )
- emcalLoader->LoadSDigitizer();
- AliEMCALSDigitizer * sDigitizer = dynamic_cast<AliEMCALSDigitizer*>(emcalLoader->SDigitizer());
-
- if ( !sDigitizer )
- Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ;
-
- //take all the inputs to add together and load the SDigits
- TObjArray * sdigArray = new TObjArray(fInput) ;
- sdigArray->AddAt(emcalLoader->SDigits(), 0) ;
- Int_t i ;
-
- for(i = 1 ; i < fInput ; i++){
- TString tempo(fEventNames[i]) ;
- tempo += i ;
- rl = AliRunLoader::Open(fInputFileNames[i], tempo) ;
- if (fManager)
- ReadEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ;
- Info("Digitize", "Adding event %d from input stream %d %s %s", ReadEvent, i, fInputFileNames[i].Data(), tempo.Data()) ;
- rl->LoadSDigits();
- rl->GetEvent(ReadEvent);
- sdigArray->AddAt(emcalLoader->SDigits(), i) ;
- }
- //Find the first tower with signal
- Int_t nextSig = nEMC + 1 ;
- TClonesArray * sdigits ;
- for(i = 0 ; i < fInput ; i++){
- sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
- if ( !sdigits->GetEntriesFast() )
- continue ;
- Int_t curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(0))->GetId() ;
- if(curNext < nextSig)
- nextSig = curNext ;
- AliDebug(1,Form("input %i : #sdigits %i \n",
- i, sdigits->GetEntriesFast()));
- }
- AliDebug(1,Form("FIRST tower with signal %i \n", nextSig));
-
- TArrayI index(fInput) ;
- index.Reset() ; //Set all indexes to zero
-
- AliEMCALDigit * digit ;
- AliEMCALDigit * curSDigit ;
-
- TClonesArray * ticks = new TClonesArray("AliEMCALTick",1000) ;
-
- //Put Noise contribution
- for(absID = 1; absID <= nEMC; absID++){
- Float_t amp = 0 ;
- // 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 = dynamic_cast<AliEMCALDigit *>(digits->At(absID-1)) ;
+ 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())) ;
+ rl->GetEvent(readEvent);
- if(absID==nextSig){
- //Add SDigits from all inputs
- ticks->Clear() ;
- Int_t contrib = 0 ;
- Float_t a = digit->GetAmp() ;
- Float_t b = TMath::Abs( a /fTimeSignalLength) ;
- //Mark the beginning of the signal
- new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime(),0, b);
- //Mark the end of the signal
- new((*ticks)[contrib++]) AliEMCALTick(digit->GetTime()+fTimeSignalLength, -a, -b);
-
- // loop over input
- for(i = 0; i< fInput ; i++){ //loop over (possible) merge sources
- if(dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
- curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->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(fManager)
- primaryoffset = fManager->GetMask(i) ;
- else
- primaryoffset = i ;
- curSDigit->ShiftPrimary(primaryoffset) ;
-
- a = curSDigit->GetAmp() ;
- b = a /fTimeSignalLength ;
- new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime(),0, b);
- new((*ticks)[contrib++]) AliEMCALTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
-
- *digit = *digit + *curSDigit ; //add energies
-
- index[i]++ ;
- if( dynamic_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
- curSDigit = dynamic_cast<AliEMCALDigit*>(dynamic_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
- else
- curSDigit = 0 ;
+ 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()) {
+ AliFatal("Could not get AliRun from runLoader");
+ }
+ else{
+ AliEMCAL * emcal = (AliEMCAL*)rl->GetAliRun()->GetDetector("EMCAL");
+ geom = emcal->GetGeometry();
+ nEMC = geom->GetNCells();
+ AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s \n", nEMC, geom->GetName()));
+ }
+
+ Int_t absID = -1 ;
+
+ digits->Expand(nEMC) ;
+
+ // RS create a digitizer on the fly
+ if (!fSDigitizer) fSDigitizer = new AliEMCALSDigitizer(rl->GetFileName().Data());
+ fSDigitizer->SetEventRange(0, -1) ;
+ //
+ //take all the inputs to add together and load the SDigits
+ TObjArray * sdigArray = new TObjArray(fInput) ;
+ sdigArray->AddAt(emcalLoader->SDigits(), 0) ;
+ Int_t i ;
+ Int_t embed = kFALSE;
+ 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()) ;
+ rl2->LoadSDigits();
+ // rl2->LoadDigits();
+ rl2->GetEvent(readEvent);
+ if(rl2->GetDetectorLoader("EMCAL"))
+ {
+ 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;
+ }
+ }
+ }
+
+ }//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 ;
+ 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 {
+ Info("Digitize", "NULL sdigit pointer");
+ continue;
+ }
+ }//There is at least one entry
+ else {
+ Info("Digitize", "NULL sdigits array");
+ continue;
}
+ }// SDigits array exists
+ else {
+ Info("Digitizer","Null sdigit pointer");
+ continue;
}
- // add fluctuations for photo-electron creation
- amp = sDigitizer->Calibrate(digit->GetAmp()) ; // GeV
- amp *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ;
-
- //calculate and set time
- Float_t time = FrontEdgeTime(ticks) ;
- digit->SetTime(time) ;
-
- //Find next signal module
- nextSig = nEMC + 1 ;
- for(i = 0 ; i < fInput ; i++){
- sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ;
- Int_t curNext = nextSig ;
- if(sdigits->GetEntriesFast() > index[i] ){
- curNext = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i]))->GetId() ;
- }
- if(curNext < nextSig) nextSig = curNext ;
+ }// 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
+ Float_t timeResolution = 0;
+ for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC
+ 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(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)) ;
+
+ 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 += TMath::Abs(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{
+ Info("Digitizer","Digit pointer is null");
}
- }
- // add the noise now
- amp += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ;
- digit->SetAmp(sDigitizer->Digitize(amp)) ;
- AliDebug(10,Form(" absID %5i amp %f nextSig %5i\n",
- absID, amp, nextSig));
- } // for(absID = 1; absID <= nEMC; absID++)
-
- ticks->Delete() ;
- delete ticks ;
-
- delete sdigArray ; //We should not delete its contents
-
- //remove digits below thresholds
- for(i = 0 ; i < nEMC ; i++){
- digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ;
- Float_t threshold = fDigitThreshold ;
- if(sDigitizer->Calibrate( digit->GetAmp() ) < threshold)
- digits->RemoveAt(i) ;
- else
- digit->SetTime(gRandom->Gaus(digit->GetTime(),fTimeResolution) ) ;
+ } // for(absID = 0; absID < nEMC; absID++)
+
+ //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
+ }//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++){
+ 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) ;
+
+ }// 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++) {
+ 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());
+ }// digit exists
+ }//Digit loop
+
}
+ else AliFatal("EMCALLoader is NULL!") ;
- digits->Compress() ;
-
- Int_t ndigits = digits->GetEntriesFast() ;
- digits->Expand(ndigits) ;
-
- //Set indexes in list of digits and fill hists.
- AliEMCALHistoUtilities::FillH1(fHists, 0, Double_t(ndigits));
- Float_t energy=0., esum=0.;
- for (i = 0 ; i < ndigits ; i++) {
- digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ;
- digit->SetIndexInList(i) ;
- energy = sDigitizer->Calibrate(digit->GetAmp()) ;
- esum += energy;
- digit->SetAmp(DigitizeEnergy(energy, digit->GetId()) ) ; // for what ??
- AliEMCALHistoUtilities::FillH1(fHists, 2, double(digit->GetAmp()));
- AliEMCALHistoUtilities::FillH1(fHists, 3, double(energy));
- AliEMCALHistoUtilities::FillH1(fHists, 4, double(digit->GetId()));
- }
- AliEMCALHistoUtilities::FillH1(fHists, 1, esum);
}
-// //_____________________________________________________________________
-Int_t AliEMCALDigitizer::DigitizeEnergy(Float_t energy, Int_t AbsId)
+//_____________________________________________________________________
+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
- // Loader
- AliRunLoader *rl = AliRunLoader::GetRunLoader();
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>
- (rl->GetDetectorLoader("EMCAL"));
+ // using the calibration constants stored in the OCDB
+ // or default values if no CalibData object is found.
+ // This effectively converts everything to match the dynamic range
+ // of the real data we will collect
+ //
+ // Load Geometry
+ const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
+
+ if (geom==0){
+ AliFatal("Did not get geometry from EMCALLoader");
+ return;
+ }
- // Load EMCAL Geometry
- rl->LoadgAlice();
- AliRun * gAlice = rl->GetAliRun();
- AliEMCAL * emcal = (AliEMCAL*)gAlice->GetDetector("EMCAL");
- AliEMCALGeometry * geom = emcal->GetGeometry();
-
- if (geom==0)
- AliFatal("Did not get geometry from EMCALLoader") ;
-
Int_t iSupMod = -1;
- Int_t nTower = -1;
+ Int_t nModule = -1;
Int_t nIphi = -1;
Int_t nIeta = -1;
Int_t iphi = -1;
Int_t ieta = -1;
- Int_t channel = -999;
+ Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ;
+ if(!bCell)
+ Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ;
+ geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
+
+ 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);
+ 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 ;
+}
- Bool_t bCell = geom->GetCellIndex(AbsId, iSupMod, nTower, nIphi, nIeta) ;
+//_____________________________________________________________________
+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
+ // so that we can add the energy of the simulated sdigits which are in energy
+ // units.
+ // Same as in AliEMCALClusterizer::Calibrate() but here we do not reject channels being marked as hot
+ // or with time out of window
+
+ // Load Geometry
+ const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
+
+ if (!geom){
+ AliFatal("Did not get geometry from EMCALLoader");
+ return;
+ }
+
+ 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) ;
if(!bCell)
- Error("DigitizeEnergy","Wrong cell id number") ;
- geom->GetCellPhiEtaIndexInSModule(iSupMod,nTower,nIphi, nIeta,iphi,ieta);
-
- if(emcalLoader->CalibData()) {
- fADCpedestalEC = emcalLoader->CalibData()
- ->GetADCpedestal(iSupMod,ieta,iphi);
- fADCchannelEC = emcalLoader->CalibData()
- ->GetADCchannel(iSupMod,ieta,iphi);
+ Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ;
+ geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
+
+ if(fCalibData) {
+ fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi);
+ fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi);
+ fTimeChannel = fCalibData->GetTimeChannel(iSupMod,ieta,iphi);
}
- channel = static_cast<Int_t> (TMath::Ceil( (energy + fADCpedestalEC)/fADCchannelEC )) ;
+ adc = adc * fADCchannelEC - fADCpedestalEC;
+ time -= fTimeChannel;
- if(channel > fNADCEC )
- channel = fNADCEC ;
- return channel ;
}
+
//____________________________________________________________________________
-void AliEMCALDigitizer::Exec(Option_t *option)
+void AliEMCALDigitizer::Digitize(Option_t *option)
{
// Steering method to process digitization for events
// in the range from fFirstEvent to fLastEvent.
// by default fLastEvent = fFirstEvent (process only one event)
if (!fInit) { // to prevent overwrite existing file
- Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ;
+ Error( "Digitize", "Give a version name different from %s", fEventFolderName.Data() ) ;
return ;
}
if (strstr(option,"print")) {
+
Print();
return ;
}
if(strstr(option,"tim"))
gBenchmark->Start("EMCALDigitizer");
- AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ AliRunLoader *rl = AliRunLoader::Instance();
AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
-
- // Post Digitizer to the white board
- emcalLoader->PostDigitizer(this) ;
-
- if (fLastEvent == -1)
- fLastEvent = rl->GetNumberOfEvents() - 1 ;
- else if (fManager)
- fLastEvent = fFirstEvent ; // what is this ??
-
- Int_t nEvents = fLastEvent - fFirstEvent + 1;
- Int_t ievent;
-
- rl->LoadSDigits("EMCAL");
- for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
+ Int_t nEvents = 0;
+ if(!emcalLoader){
+ AliFatal("Did not get the Loader");
+ }
+ else{
- rl->GetEvent(ievent);
-
- Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
+ if (fLastEvent == -1) {
+ fLastEvent = rl->GetNumberOfEvents() - 1 ;
+ }
+ else if (fDigInput)
+ fLastEvent = fFirstEvent ; // what is this ??
+
+ nEvents = fLastEvent - fFirstEvent + 1;
+ Int_t ievent = -1;
- WriteDigits() ;
+ TClonesArray* digitsTMP = new TClonesArray("AliEMCALDigit", 32*96);
+ TClonesArray* digitsTRG = new TClonesArray("AliEMCALRawDigit", 32*96);
- if(strstr(option,"deb"))
- PrintDigits(option);
- if(strstr(option,"table")) gObjectTable->Print();
+ rl->LoadSDigits("EMCAL");
+ for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
+
+ rl->GetEvent(ievent);
+
+ Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
+
+ WriteDigits() ;
+
+ //Trigger Digits
+ //-------------------------------------
+
- //increment the total number of Digits per run
- fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ;
- }
+ Digits2FastOR(digitsTMP, digitsTRG);
+
+ WriteDigits(digitsTRG);
+
+ (emcalLoader->TreeD())->Fill();
+
+ emcalLoader->WriteDigits( "OVERWRITE");
+
+ Unload();
+
+ digitsTRG ->Delete();
+ digitsTMP ->Delete();
+
+ //-------------------------------------
+
+ if(strstr(option,"deb"))
+ PrintDigits(option);
+ if(strstr(option,"table")) gObjectTable->Print();
+
+ //increment the total number of Digits per run
+ fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ;
+ }//loop
+
+ }//loader exists
- emcalLoader->CleanDigitizer() ;
-
if(strstr(option,"tim")){
gBenchmark->Stop("EMCALDigitizer");
- printf("Exec: took %f seconds for Digitizing %f seconds per event",
- gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nEvents ) ;
+ Float_t cputime = gBenchmark->GetCpuTime("EMCALDigitizer");
+ Float_t avcputime = cputime;
+ if(nEvents==0) avcputime = 0 ;
+ AliInfo(Form("Digitize: took %f seconds for Digitizing %f seconds per event", cputime, avcputime)) ;
}
}
-//____________________________________________________________________________
-Float_t AliEMCALDigitizer::FrontEdgeTime(TClonesArray * ticks)
-{
- // Returns the shortest time among all time ticks
+//__________________________________________________________________
+Float_t AliEMCALDigitizer::GetTimeResolution(Float_t energy) const
+{
+ // From F. Blanco
+ Float_t res = -1;
+ if (energy > 0) {
+ res = TMath::Sqrt(fTimeResolutionPar0 +
+ fTimeResolutionPar1/(energy*energy) );
+ }
+ // parametrization above is for ns. Convert to seconds:
+ return res*1e-9;
+}
- ticks->Sort() ; //Sort in accordance with times of ticks
- TIter it(ticks) ;
- AliEMCALTick * ctick = (AliEMCALTick *) it.Next() ;
- Float_t time = ctick->CrossingTime(fTimeThreshold) ;
+//____________________________________________________________________________
+void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG)
+{
+ // 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
- AliEMCALTick * t ;
- while((t=(AliEMCALTick*) it.Next())){
- if(t->GetTime() < time) //This tick starts before crossing
- *ctick+=*t ;
- else
- return time ;
-
- time = ctick->CrossingTime(fTimeThreshold) ;
+ // push the FEE digit to its associated FastOR (numbered from 0:95)
+ // TRU is in charge of summing module digits
+
+ AliRunLoader *runLoader = AliRunLoader::Instance();
+
+ AliRun* run = runLoader->GetAliRun();
+
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL"));
+ if(!emcalLoader){
+ AliFatal("Did not get the Loader");
}
- return time ;
+ else {
+ AliEMCAL* emcal = dynamic_cast<AliEMCAL*>(run->GetDetector("EMCAL"));
+ if(emcal){
+ AliEMCALGeometry* geom = emcal->GetGeometry();
+
+ // build FOR from simulated digits
+ // and xfer to the corresponding TRU input (mapping)
+
+ TClonesArray* digits = emcalLoader->Digits();
+
+ TIter NextDigit(digits);
+ while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit())
+ {
+ 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;
+ }
+ }
+ }
+
+ if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast());
+
+ Int_t nSamples = 32;
+ 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;
+
+ 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)
+ {
+ DigitalFastOR(time, depositedEnergy, timeSamples, nSamples);
+
+ for (Int_t j=0;j<nSamples;j++)
+ {
+ timeSamples[j] = ((j << 12) & 0xFF000) | (timeSamples[j] & 0xFFF);
+ }
+
+ new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples);
+ }
+ }
+ }
+
+ delete [] timeSamples;
+ }// AliEMCAL exists
+ else AliFatal("Could not get AliEMCAL");
+ }// loader exists
+
+}
+
+//____________________________________________________________________________
+void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples )
+{
+ // parameters:
+ // id: 0..95
+ const Int_t reso = 11; // 11-bit resolution ADC
+ const Double_t vFSR = 1; // Full scale input voltage range
+ 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 vA = .136e-6; // CSP output range: 0.136uV/e-
+ const Double_t rise = 40e-9; // rise time (10-90%) of the FastOR signal before shaping
+
+ 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 );
+
+ 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
+
+ timeSamples[iTime] = int((TMath::Power(2, reso) / vFSR) * signalF.Eval(iTime * kTimeBinWidth) + 0.5);
+ }
}
//____________________________________________________________________________
{
// Makes all memory allocations
fInit = kTRUE ;
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
-
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+
if ( emcalLoader == 0 ) {
Fatal("Init", "Could not obtain the AliEMCALLoader");
return kFALSE;
}
-
+
fFirstEvent = 0 ;
fLastEvent = fFirstEvent ;
- if(fManager)
- fInput = fManager->GetNinputs() ;
+ if(fDigInput)
+ fInput = fDigInput->GetNinputs() ;
else
fInput = 1 ;
fEventNames[0] = fEventFolderName.Data() ;
Int_t index ;
for (index = 1 ; index < fInput ; index++) {
- fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0);
- TString tempo = fManager->GetInputFolderName(index) ;
- fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager
+ fInputFileNames[index] = dynamic_cast<AliStream*>(fDigInput->GetInputStream(index))->GetFileName(0);
+ TString tempo = fDigInput->GetInputFolderName(index) ;
+ fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fDigInput
}
-
- //to prevent cleaning of this object while GetEvent is called
- emcalLoader->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE);
-
- Print();
-
+
+ //Calibration instance
+ fCalibData = emcalLoader->CalibData();
return fInit ;
}
//____________________________________________________________________________
void AliEMCALDigitizer::InitParameters()
-{ // Tune parameters - 24-nov-04
-
- fMeanPhotonElectron = 3300 ; // electrons per GeV
- fPinNoise = 0.004;
- if (fPinNoise == 0. )
+{
+ // Parameter initialization for digitizer
+
+ // Get the parameters from the OCDB via the loader
+ AliRunLoader *rl = AliRunLoader::Instance();
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
+ AliEMCALSimParam * simParam = 0x0;
+ if(emcalLoader) simParam = emcalLoader->SimulationParameters();
+
+ if(!simParam){
+ simParam = AliEMCALSimParam::GetInstance();
+ AliWarning("Simulation Parameters not available in OCDB?");
+ }
+
+ fMeanPhotonElectron = simParam->GetMeanPhotonElectron() ; // 4400; // electrons per GeV
+ fGainFluctuations = simParam->GetGainFluctuations() ; // 15.0;
+
+ fPinNoise = simParam->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data
+ if (fPinNoise < 0.0001 )
Warning("InitParameters", "No noise added\n") ;
- fDigitThreshold = fPinNoise * 3; // 3 * sigma
- fTimeResolution = 0.3e-9 ; // 300 psc
- fTimeSignalLength = 1.0e-9 ;
-
- fADCchannelEC = 0.00305; // 200./65536 - width of one ADC channel in GeV
- fADCpedestalEC = 0.009 ; // GeV
- fNADCEC = (Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536
-
- fTimeThreshold = 0.001*10000000 ; // Means 1 MeV in terms of SDigits amplitude ??
- // hists. for control; no hists on default
- fControlHists = 0;
- fHists = 0;
+ fTimeNoise = simParam->GetTimeNoise(); // 1.28E-5 s
+ fDigitThreshold = simParam->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma
+ fTimeResolutionPar0 = simParam->GetTimeResolutionPar0();
+ fTimeResolutionPar1 = simParam->GetTimeResolutionPar1();
+ fTimeDelay = simParam->GetTimeDelay(); //600e-9 ; // 600 ns
+
+ // These defaults are normally not used.
+ // Values are read from calibration database instead
+ fADCchannelEC = 0.0153; // Update 24 Apr 2007: 250./16/1024 - width of one ADC channel in GeV
+ fADCpedestalEC = 0.0 ; // GeV
+ fADCchannelECDecal = 1.0; // No decalibration by default
+ fTimeChannel = 0.0; // No time calibration by default
+ fTimeChannelDecal = 0.0; // No time decalibration by default
+
+ fNADCEC = simParam->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536
+
+ AliDebug(2,Form("Mean Photon Electron %d, Gain Fluct. %2.1f; Noise: APD %f, Time %f; Digit Threshold %d,Time Resolution Par0 %g Par1 %g,NADCEC %d",
+ fMeanPhotonElectron, fGainFluctuations, fPinNoise,fTimeNoise, fDigitThreshold,fTimeResolutionPar0,fTimeResolutionPar1,fNADCEC));
+
}
//__________________________________________________________________
-void AliEMCALDigitizer::MixWith(TString alirunFileName, TString eventFolderName)
-{
- // Allows to produce digits by superimposing background and signal event.
- // It is assumed, that headers file with SIGNAL events is opened in
- // the constructor.
- // Sets the BACKGROUND event, with which the SIGNAL event is to be mixed
- // Thus we avoid writing (changing) huge and expensive
- // backgound files: all output will be writen into SIGNAL, i.e.
- // opened in constructor file.
- //
- // One can open as many files to mix with as one needs.
- // However only Sdigits with the same name (i.e. constructed with the same SDigitizer)
- // can be mixed.
-
- if( strcmp(GetName(), "") == 0 )
- Init() ;
-
- if(fManager){
- Error("MixWith", "Cannot use this method under AliRunDigitizer") ;
- return ;
- }
- // looking for file which contains AliRun
- if (gSystem->AccessPathName(alirunFileName)) {// file does not exist
- Error("MixWith", "File %s does not exist!", alirunFileName.Data()) ;
- return ;
- }
- // looking for the file which contains SDigits
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
- TString fileName( emcalLoader->GetSDigitsFileName() ) ;
- if ( eventFolderName != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
- fileName = fileName.ReplaceAll(".root", "") + "_" + eventFolderName + ".root" ;
- if ( (gSystem->AccessPathName(fileName)) ) {
- Error("MixWith", "The file %s does not exist!", fileName.Data()) ;
- return ;
- }
- // need to increase the arrays
- TString tempo = fInputFileNames[fInput-1] ;
- delete [] fInputFileNames ;
- fInputFileNames = new TString[fInput+1] ;
- fInputFileNames[fInput-1] = tempo ;
-
- tempo = fEventNames[fInput-1] ;
- delete [] fEventNames ;
- fEventNames = new TString[fInput+1] ;
- fEventNames[fInput-1] = tempo ;
-
- fInputFileNames[fInput] = alirunFileName ;
- fEventNames[fInput] = eventFolderName ;
- fInput++ ;
-}
-
void AliEMCALDigitizer::Print1(Option_t * option)
-{ // 19-nov-04 - just for convinience
+{ // 19-nov-04 - just for convenience
Print();
PrintDigits(option);
}
//__________________________________________________________________
-void AliEMCALDigitizer::Print(Option_t*)const
+void AliEMCALDigitizer::Print (Option_t * ) const
{
// Print Digitizer's parameters
printf("Print: \n------------------- %s -------------", GetName() ) ;
printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
Int_t nStreams ;
- if (fManager)
+ if (fDigInput)
nStreams = GetNInputStreams() ;
else
nStreams = fInput ;
- Int_t index = 0 ;
-
AliRunLoader *rl=0;
-
+
+ Int_t index = 0 ;
for (index = 0 ; index < nStreams ; index++) {
TString tempo(fEventNames[index]) ;
tempo += index ;
if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0)
- rl = AliRunLoader::Open(fInputFileNames[index], tempo) ;
+ rl = AliRunLoader::Open(fInputFileNames[index], tempo) ;
AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
- TString fileName( emcalLoader->GetSDigitsFileName() ) ;
- if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
- fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
- printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
+ if(emcalLoader){
+ TString fileName( emcalLoader->GetSDigitsFileName() ) ;
+ if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name
+ fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ;
+ printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ;
+ }//loader
}
-
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
-
- printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ;
- printf("\nWith following parameters:\n") ;
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
- printf(" Electronics noise in EMC (fPinNoise) = %f\n", fPinNoise) ;
- printf(" Threshold in EMC (fDigitThreshold) = %f\n", fDigitThreshold) ;
+ if(emcalLoader) printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ;
+ else printf("\nNULL LOADER");
+
+ printf("\nWith following parameters:\n") ;
+ printf(" Electronics noise in EMC, APD (fPinNoise) = %f, Time = %f \n", fPinNoise, fTimeNoise) ;
+ printf(" Threshold in Tower (fDigitThreshold) = %d\n", fDigitThreshold) ;
printf("---------------------------------------------------\n") ;
}
else
}
//__________________________________________________________________
-void AliEMCALDigitizer::PrintDigits(Option_t * option){
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
- TClonesArray * digits = emcalLoader->Digits() ;
- TClonesArray * sdigits = emcalLoader->SDigits() ;
-
- printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ;
- printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber());
-
- if(strstr(option,"all")){
- //loop over digits
- AliEMCALDigit * digit;
- printf("\nEMC digits (with primaries):\n") ;
- printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
- Int_t index ;
- for (index = 0 ; index < digits->GetEntries() ; index++) {
- digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ;
- printf("\n%6d %8d %6.5e %4d %2d : ",
- digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
- Int_t iprimary;
- for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
- printf("%d ",digit->GetPrimary(iprimary+1) ) ;
- }
- }
- }
- printf("\n");
+void AliEMCALDigitizer::PrintDigits(Option_t * option)
+{
+ //utility method for printing digit information
+
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+ if(emcalLoader){
+ TClonesArray * digits = emcalLoader->Digits() ;
+ TClonesArray * sdigits = emcalLoader->SDigits() ;
+
+ printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ;
+ printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber());
+
+ if(strstr(option,"all")){
+ //loop over digits
+ AliEMCALDigit * digit;
+ printf("\nEMC digits (with primaries):\n") ;
+ printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
+ Int_t index ;
+ for (index = 0 ; index < digits->GetEntries() ; index++) {
+ digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ;
+ if(digit){
+ printf("\n%6d %8f %6.5e %4d %2d : ",
+ digit->GetId(), digit->GetAmplitude(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
+ Int_t iprimary;
+ for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
+ printf("%d ",digit->GetPrimary(iprimary+1) ) ;
+ }
+ }// digit exists
+ }// loop
+ }
+ printf("\n");
+ }// loader exists
+ else printf("NULL LOADER, cannot print\n");
}
//__________________________________________________________________
Float_t AliEMCALDigitizer::TimeOfNoise(void)
{
// Calculates the time signal generated by noise
- //PH Info("TimeOfNoise", "Change me") ;
- return gRandom->Rndm() * 1.28E-5;
+ //printf("Time noise %e\n",fTimeNoise);
+ return gRandom->Rndm() * fTimeNoise;
}
//__________________________________________________________________
if ((rl = AliRunLoader::GetRunLoader(tempo)))
rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ;
}
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
- emcalLoader->UnloadDigits() ;
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+ if(emcalLoader)emcalLoader->UnloadDigits() ;
+ else AliFatal("Did not get the loader");
}
//_________________________________________________________________________________________
void AliEMCALDigitizer::WriteDigits()
-{
-
- // Makes TreeD in the output file.
+{ // Makes TreeD in the output file.
// Check if branch already exists:
// if yes, exit without writing: ROOT TTree does not support overwriting/updating of
// already existing branches.
// else creates branch with Digits, named "EMCAL", title "...",
// and branch "AliEMCALDigitizer", with the same title to keep all the parameters
// and names of files, from which digits are made.
-
- AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
-
- const TClonesArray * digits = emcalLoader->Digits() ;
- TTree * treeD = emcalLoader->TreeD();
- if ( !treeD ) {
- emcalLoader->MakeDigitsContainer();
- treeD = emcalLoader->TreeD();
- }
-
- // -- create Digits branch
- Int_t bufferSize = 32000 ;
- TBranch * digitsBranch = 0;
- if ((digitsBranch = treeD->GetBranch("EMCAL")))
- digitsBranch->SetAddress(&digits);
- else
- treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize);
- //digitsBranch->SetTitle(fEventFolderName);
- treeD->Fill() ;
- emcalLoader->WriteDigits("OVERWRITE");
- emcalLoader->WriteDigitizer("OVERWRITE");
-
- Unload() ;
-
-}
-
-void AliEMCALDigitizer::Browse(TBrowser* b)
-{
- if(fHists) b->Add(fHists);
- TTask::Browse(b);
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+
+ if(emcalLoader){
+ const TClonesArray * digits = emcalLoader->Digits() ;
+ TTree * treeD = emcalLoader->TreeD();
+ if ( !treeD ) {
+ emcalLoader->MakeDigitsContainer();
+ treeD = emcalLoader->TreeD();
+ }
+
+ // -- create Digits branch
+ Int_t bufferSize = 32000 ;
+ TBranch * digitsBranch = 0;
+ if ((digitsBranch = treeD->GetBranch("EMCAL"))) {
+ digitsBranch->SetAddress(&digits);
+ AliWarning("Digits Branch already exists. Not all digits will be visible");
+ }
+ else
+ treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize);
+ //digitsBranch->SetTitle(fEventFolderName);
+
+ // treeD->Fill() ;
+ /*
+ emcalLoader->WriteDigits("OVERWRITE");
+ emcalLoader->WriteDigitizer("OVERWRITE");
+
+ Unload() ;
+ */
+
+ }// loader exists
+ else AliFatal("Loader not available");
}
-TList *AliEMCALDigitizer::BookControlHists(int var)
-{ // 22-nov-04
- Info("BookControlHists"," started ");
- gROOT->cd();
- const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance();
- if(var>=1){
- new TH1F("hDigiN", "#EMCAL digits with fAmp > fDigitThreshold",
- fNADCEC+1, -0.5, Double_t(fNADCEC));
- new TH1F("HDigiSumEnergy","Sum.EMCAL energy from digi", 1000, 0.0, 200.);
- new TH1F("hDigiAmp", "EMCAL digital amplitude", fNADCEC+1, -0.5, Double_t(fNADCEC));
- new TH1F("hDigiEnergy","EMCAL cell energy", 2000, 0.0, 200.);
- new TH1F("hDigiAbsId","EMCAL absId cells with fAmp > fDigitThreshold ",
- geom->GetNCells(), 0.5, Double_t(geom->GetNCells())+0.5);
- }
-
- fHists = AliEMCALHistoUtilities::MoveHistsToList("EmcalDigiControlHists", kFALSE);
- fHists = 0; //huh? JLK 03-Mar-2006
- return fHists;
+//__________________________________________________________________
+void AliEMCALDigitizer::WriteDigits(TClonesArray* digits, const char* branchName)
+{ // overloaded method
+ AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL"));
+ if(emcalLoader){
+
+ TTree* treeD = emcalLoader->TreeD();
+ if (!treeD)
+ {
+ emcalLoader->MakeDigitsContainer();
+ treeD = emcalLoader->TreeD();
+ }
+
+ // -- create Digits branch
+ Int_t bufferSize = 32000;
+
+ if (TBranch* triggerBranch = treeD->GetBranch(branchName))
+ {
+ triggerBranch->SetAddress(&digits);
+ }
+ else
+ {
+ treeD->Branch(branchName,"TClonesArray",&digits,bufferSize);
+ }
+
+ // treeD->Fill();
+ }// loader exists
+ else AliFatal("Loader not available");
}
-void AliEMCALDigitizer::SaveHists(const char* name, Bool_t kSingleKey, const char* opt)
-{
- AliEMCALHistoUtilities::SaveListOfHists(fHists, name, kSingleKey, opt);
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff