/* History of cvs commits:
*
* $Log$
+ * Revision 1.52 2007/03/10 22:19:01 pavlinov
+ * move one varibels from AliEMCALv2 to AliEMCAL
+ *
* Revision 1.51 2007/02/24 20:42:35 pavlinov
* fixed error of Geant3 parameters initialisation
*
#include <TTree.h>
#include <TVirtualMC.h>
#include <TH1F.h>
-#include <TF1.h>
#include <TRandom.h>
#include <TGraph.h>
#include "AliEMCALSDigitizer.h"
#include "AliEMCALDigitizer.h"
#include "AliEMCALDigit.h"
-//#include "AliAltroMapping.h"
-#include "AliCaloAltroMapping.h"
-#include "AliAltroBuffer.h"
-#include "AliRawReader.h"
-#include "AliCaloRawStream.h"
-#include "AliDAQ.h"
+#include "AliEMCALRawUtils.h"
ClassImp(AliEMCAL)
-Double_t AliEMCAL::fgCapa = 1.; // 1pF
-Int_t AliEMCAL::fgOrder = 2 ;
-Double_t AliEMCAL::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins
-Double_t AliEMCAL::fgTimePeak = 4.1E-6 ; // 4 micro seconds
-Double_t AliEMCAL::fgTimeTrigger = 100E-9 ; // 100ns, just for a reference
-// some digitization constants
-Int_t AliEMCAL::fgThreshold = 1;
-Int_t AliEMCAL::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule
//____________________________________________________________________________
AliEMCAL::AliEMCAL()
fBirkC0(0),
fBirkC1(0.),
fBirkC2(0.),
- fHighCharge(0.),
- fHighGain(0.),
- fHighLowGainFactor(0.),
- fLowGainOffset(0),
fGeometry(0)
{
// Default ctor
fBirkC0(0),
fBirkC1(0.),
fBirkC2(0.),
- fHighCharge(0.),
- fHighGain(0.),
- fHighLowGainFactor(0.),
- fLowGainOffset(0),
fGeometry(0)
{
// ctor : title is used to identify the layout
fBirkC0 = 1;
fBirkC1 = 0.013/1.032;
fBirkC2 = 9.6e-6/(1.032 * 1.032);
-
- fHighCharge = 8.2 ; // adjusted for a high gain range of 5.12 GeV (10 bits)
- fHighGain = 6.64 ;
- fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits)
- fLowGainOffset = 1 ; // offset added to the module id to distinguish high and low gain data
-}
+ }
//____________________________________________________________________________
void AliEMCAL::DefineMediumParameters()
isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
// The scintillator of the CPV made of Polystyrene scintillator -> idtmed[1601]
- float deemax = 0.1; // maximum fractional energy loss in one step (0 < DEEMAX â?¤ 1);i
+ float deemax = 0.1; // maximum fractional energy loss in one step (0 < DEEMAX < deemax )
AliMedium(2, "Scintillator$", 2, 1,
isxfld, sxmgmx, 10.0, 0.001, deemax, 0.001, 0.001, 0, 0) ;
// Call just in case of Geant3; What to do in case of Geant4 ?
if(gMC->InheritsFrom("TGeant3")) DefineMediumParameters(); // Feb 20, 2007
}
- //____________________________________________________________________________
-void AliEMCAL::Digits2Raw()
-{
- // convert digits of the current event to raw data
-
- AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
-
- // get the digits
- loader->LoadDigits("EMCAL");
- loader->GetEvent();
- TClonesArray* digits = loader->Digits() ;
-
- if (!digits) {
- Error("Digits2Raw", "no digits found !");
- return;
- }
-
- // get the digitizer
- loader->LoadDigitizer();
- AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
-
- // get the geometry
- AliEMCALGeometry* geom = GetGeometry();
- if (!geom) {
- AliError(Form("No geometry found !"));
- return;
- }
-
- AliAltroBuffer* buffer = NULL;
- Int_t prevDDL = -1;
- Int_t adcValuesLow[fgkTimeBins];
- Int_t adcValuesHigh[fgkTimeBins];
-
- //Load Mapping RCU files once
- TString path = gSystem->Getenv("ALICE_ROOT");
- path += "/EMCAL/mapping/RCU";
- TString path0 = path+"0.data";//This file will change in future
- TString path1 = path+"1.data";//This file will change in future
- AliAltroMapping * mapping[2] ; // For the moment only 2
- mapping[0] = new AliCaloAltroMapping(path0.Data());
- mapping[1] = new AliCaloAltroMapping(path1.Data());
-
- // loop over digits (assume ordered digits)
- for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) {
- AliEMCALDigit* digit = dynamic_cast<AliEMCALDigit *>(digits->At(iDigit)) ;
- if (digit->GetAmp() < fgThreshold)
- continue;
-
- //get cell indeces
- Int_t nSM = 0;
- Int_t nIphi = 0;
- Int_t nIeta = 0;
- Int_t iphi = 0;
- Int_t ieta = 0;
- Int_t nModule = 0;
- geom->GetCellIndex(digit->GetId(), nSM, nModule, nIphi, nIeta);
- geom->GetCellPhiEtaIndexInSModule(nSM, nModule, nIphi, nIeta,iphi, ieta) ;
-
- //Check which is the RCU of the cell.
- Int_t iRCU = -111;
- //RCU0
- if (0<=iphi&&iphi<8) iRCU=0; // first cable row
- else if (8<=iphi&&iphi<16 && 0<=ieta&&ieta<24) iRCU=0; // first half;
- //second cable row
- //RCU1
- else if(8<=iphi&&iphi<16 && 24<=ieta&&ieta<48) iRCU=1; // second half;
- //second cable row
- else if(16<=iphi&&iphi<24) iRCU=1; // third cable row
-
- //Which DDL?
- Int_t iDDL = fgDDLPerSuperModule* nSM + iRCU;
-
- // new DDL
- if (iDDL != prevDDL) {
- // write real header and close previous file
-
- if (buffer) {
- buffer->Flush();
- buffer->WriteDataHeader(kFALSE, kFALSE);
- delete buffer;
- }
-
- // open new file and write dummy header
- TString fileName = AliDAQ::DdlFileName("EMCAL",iDDL);
- buffer = new AliAltroBuffer(fileName.Data(),mapping[iRCU]);
- buffer->WriteDataHeader(kTRUE, kFALSE); //Dummy;
- prevDDL = iDDL;
- }
-
- // out of time range signal (?)
- if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
- AliInfo("Signal is out of time range.\n");
- buffer->FillBuffer((Int_t)digit->GetAmp());
- buffer->FillBuffer(GetRawFormatTimeBins() ); // time bin
- buffer->FillBuffer(3); // bunch length
- buffer->WriteTrailer(3, ieta, iphi, nSM); // trailer
- // calculate the time response function
- } else {
-
- Double_t energy = digit->GetAmp() * digitizer->GetECAchannel() + digitizer->GetECApedestal() ;
-
- Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
-
- if (lowgain)
- buffer->WriteChannel(ieta, iphi, 0, GetRawFormatTimeBins(), adcValuesLow, fgThreshold);
- else
- buffer->WriteChannel(ieta,iphi, 1, GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
-
- }
- }
-
- // write real header and close last file
- if (buffer) {
- buffer->Flush();
- buffer->WriteDataHeader(kFALSE, kFALSE);
- delete buffer;
- }
- mapping[0]->Delete();
- mapping[1]->Delete();
- loader->UnloadDigits();
-}
-
//____________________________________________________________________________
-void AliEMCAL::Raw2Digits(AliRawReader* reader)
-{
- // convert raw data of the current event to digits
- AliEMCALGeometry * geom = GetGeometry();
- AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
-
- // get the digits
- loader->CleanDigits(); // start from scratch
- loader->LoadDigits("EMCAL");
- TClonesArray* digits = loader->Digits() ;
- digits->Clear(); // yes, this is perhaps somewhat paranoid.. [clearing an extra time]
-
- if (!digits) {
- Error("Raw2Digits", "no digits found !");
- return;
- }
- if (!reader) {
- Error("Raw2Digits", "no raw reader found !");
- return;
- }
-
- // and get the digitizer too
- loader->LoadDigitizer();
- AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
-
- // Use AliAltroRawStream to read the ALTRO format. No need to
- // reinvent the wheel :-)
- AliCaloRawStream in(reader,"EMCAL");
- // Select EMCAL DDL's;
- reader->Select("EMCAL");
-
- // reading is from previously existing AliEMCALGetter.cxx
- // ReadRaw method
- Bool_t first = kTRUE ;
-
- TF1 * signalF = new TF1("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
- signalF->SetParNames("Charge", "Gain", "Amplitude", "TimeZero");
-
- Bool_t lowGainFlag = kFALSE ;
- Int_t id = -1;
- Int_t idigit = 0 ;
- Int_t amp = 0 ;
- Double_t time = 0. ;
- Double_t energy = 0. ;
-
- TGraph * gLowGain = new TGraph(GetRawFormatTimeBins()) ;
- TGraph * gHighGain= new TGraph(GetRawFormatTimeBins()) ;
-
- while ( in.Next() ) { // EMCAL entries loop
- if ( in.IsNewRow() ) {//phi
- if ( in.IsNewColumn() ) {//eta
- id = geom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ;
- if (!first) {
- FitRaw(lowGainFlag, gLowGain, gHighGain, signalF, energy, time) ;
-
- if (time == 0. && energy == 0.) {
- amp = 0 ;
- }
- else {
- amp = static_cast<Int_t>( (energy - digitizer->GetECApedestal()) / digitizer->GetECAchannel() + 0.5 ) ;
- }
-
- if (amp > 0) {
- new((*digits)[idigit]) AliEMCALDigit( -1, -1, id, amp, time) ;
- idigit++ ;
- }
- Int_t index ;
- for (index = 0; index < GetRawFormatTimeBins(); index++) {
- gLowGain->SetPoint(index, index * GetRawFormatTimeMax() / GetRawFormatTimeBins(), 0) ;
- gHighGain->SetPoint(index, index * GetRawFormatTimeMax() / GetRawFormatTimeBins(), 0) ;
- }
- } // not first
- first = kFALSE ;
- id = geom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ;
- if (in.GetModule() == GetRawFormatLowGainOffset() ) {
- lowGainFlag = kTRUE ;
- }
- else {
- lowGainFlag = kFALSE ;
- }
- } //new column-eta
- }// new row-phi
- if (lowGainFlag) {
- gLowGain->SetPoint(in.GetTime(),
- in.GetTime()* GetRawFormatTimeMax() / GetRawFormatTimeBins(),
- in.GetSignal()) ;
- }
- else {
- gHighGain->SetPoint(in.GetTime(),
- in.GetTime() * GetRawFormatTimeMax() / GetRawFormatTimeBins(),
- in.GetSignal() ) ;
- }
- } // EMCAL entries loop
- digits->Sort() ;
-
- delete signalF ;
- delete gLowGain;
- delete gHighGain ;
-
- return ;
+void AliEMCAL::Digits2Raw() {
+ static AliEMCALRawUtils rawUtil;
+ rawUtil.Digits2Raw();
}
-
-//____________________________________________________________________________
-void AliEMCAL::FitRaw(Bool_t lowGainFlag, TGraph * gLowGain, TGraph * gHighGain, TF1* signalF, Double_t & energy, Double_t & time)
-{
- // Fits the raw signal time distribution; from AliEMCALGetter
-
- const Int_t kNoiseThreshold = 0 ;
- Double_t timezero1 = 0., timezero2 = 0., timemax = 0. ;
- Double_t signal = 0., signalmax = 0. ;
- energy = time = 0. ;
-
- if (lowGainFlag) {
- timezero1 = timezero2 = signalmax = timemax = 0. ;
- signalF->FixParameter(0, GetRawFormatLowCharge()) ;
- signalF->FixParameter(1, GetRawFormatLowGain()) ;
- Int_t index ;
- for (index = 0; index < GetRawFormatTimeBins(); index++) {
- gLowGain->GetPoint(index, time, signal) ;
- if (signal > kNoiseThreshold && timezero1 == 0.)
- timezero1 = time ;
- if (signal <= kNoiseThreshold && timezero1 > 0. && timezero2 == 0.)
- timezero2 = time ;
- if (signal > signalmax) {
- signalmax = signal ;
- timemax = time ;
- }
- }
- signalmax /= RawResponseFunctionMax(GetRawFormatLowCharge(),
- GetRawFormatLowGain()) ;
- if ( timezero1 + GetRawFormatTimePeak() < GetRawFormatTimeMax() * 0.4 ) { // else its noise
- signalF->SetParameter(2, signalmax) ;
- signalF->SetParameter(3, timezero1) ;
- gLowGain->Fit(signalF, "QRON", "", 0., timezero2); //, "QRON") ;
- energy = signalF->GetParameter(2) ;
- time = signalF->GetMaximumX() - GetRawFormatTimePeak() - GetRawFormatTimeTrigger() ;
- }
- } else {
- timezero1 = timezero2 = signalmax = timemax = 0. ;
- signalF->FixParameter(0, GetRawFormatHighCharge()) ;
- signalF->FixParameter(1, GetRawFormatHighGain()) ;
- Int_t index ;
- for (index = 0; index < GetRawFormatTimeBins(); index++) {
- gHighGain->GetPoint(index, time, signal) ;
- if (signal > kNoiseThreshold && timezero1 == 0.)
- timezero1 = time ;
- if (signal <= kNoiseThreshold && timezero1 > 0. && timezero2 == 0.)
- timezero2 = time ;
- if (signal > signalmax) {
- signalmax = signal ;
- timemax = time ;
- }
- }
- signalmax /= RawResponseFunctionMax(GetRawFormatHighCharge(),
- GetRawFormatHighGain()) ;;
- if ( timezero1 + GetRawFormatTimePeak() < GetRawFormatTimeMax() * 0.4 ) { // else its noise
- signalF->SetParameter(2, signalmax) ;
- signalF->SetParameter(3, timezero1) ;
- gHighGain->Fit(signalF, "QRON", "", 0., timezero2) ;
- energy = signalF->GetParameter(2) ;
- time = signalF->GetMaximumX() - GetRawFormatTimePeak() - GetRawFormatTimeTrigger() ;
- }
- }
-
- return;
-}
-
//____________________________________________________________________________
void AliEMCAL::Hits2SDigits()
{
fLoader = new AliEMCALLoader(GetName(),topfoldername);
return fLoader;
}
-
-//__________________________________________________________________
-Double_t AliEMCAL::RawResponseFunction(Double_t *x, Double_t *par)
-{
- // Shape of the electronics raw reponse:
- // It is a semi-gaussian, 2nd order Gamma function of the general form
- // v(t) = n**n * Q * A**n / C *(t/tp)**n * exp(-n * t/tp) with
- // tp : peaking time par[0]
- // n : order of the function
- // C : integrating capacitor in the preamplifier
- // A : open loop gain of the preamplifier
- // Q : the total APD charge to be measured Q = C * energy
-
- Double_t signal ;
- Double_t xx = x[0] - ( fgTimeTrigger + par[3] ) ;
-
- if (xx < 0 || xx > fgTimeMax)
- signal = 0. ;
- else {
- Double_t fac = par[0] * TMath::Power(fgOrder, fgOrder) * TMath::Power(par[1], fgOrder) / fgCapa ;
- signal = fac * par[2] * TMath::Power(xx / fgTimePeak, fgOrder) * TMath::Exp(-fgOrder * (xx / fgTimePeak)) ;
- }
- return signal ;
-}
-
-//__________________________________________________________________
-Double_t AliEMCAL::RawResponseFunctionMax(Double_t charge, Double_t gain)
-{
- //compute the maximum of the raw response function and return
- return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
- / ( fgCapa * TMath::Exp(fgOrder) ) );
-
-}
-//__________________________________________________________________
-Bool_t AliEMCAL::RawSampledResponse(
-const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const
-{
- // for a start time dtime and an amplitude damp given by digit,
- // calculates the raw sampled response AliEMCAL::RawResponseFunction
-
- const Int_t kRawSignalOverflow = 0x3FF ;
- Bool_t lowGain = kFALSE ;
-
- TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
-
- for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) {
- signalF.SetParameter(0, GetRawFormatHighCharge() ) ;
- signalF.SetParameter(1, GetRawFormatHighGain() ) ;
- signalF.SetParameter(2, damp) ;
- signalF.SetParameter(3, dtime) ;
- Double_t time = iTime * GetRawFormatTimeMax() / GetRawFormatTimeBins() ;
- Double_t signal = signalF.Eval(time) ;
- if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow ){ // larger than 10 bits
- signal = kRawSignalOverflow ;
- lowGain = kTRUE ;
- }
- adcH[iTime] = static_cast<Int_t>(signal + 0.5) ;
-
- signalF.SetParameter(0, GetRawFormatLowCharge() ) ;
- signalF.SetParameter(1, GetRawFormatLowGain() ) ;
- signal = signalF.Eval(time) ;
- if ( static_cast<Int_t>(signal+0.5) > kRawSignalOverflow) // larger than 10 bits
- signal = kRawSignalOverflow ;
- adcL[iTime] = static_cast<Int_t>(0.5 + signal ) ;
-
- }
- return lowGain ;
-}
/* History of cvs commits:
*
* $Log$
+ * Revision 1.43 2007/03/10 22:19:01 pavlinov
+ * move one varibels from AliEMCALv2 to AliEMCAL
+ *
* Revision 1.42 2007/02/24 20:42:35 pavlinov
* fixed error of Geant3 parameters initialisation
*
class TRandom ;
class TGraph;
class TF1;
-class AliEMCALGeometry;
// --- AliRoot header files ---
class AliRawReader;
virtual void CreateMaterials() ;
virtual void Digits2Raw();
- using AliDetector::Raw2Digits;
- virtual void Raw2Digits(AliRawReader *reader);
-
virtual void FinishRun() {}
virtual AliEMCALGeometry * GetGeometry() const
{return AliEMCALGeometry::GetInstance(GetTitle(),"") ; }
virtual void Hits2SDigits();
- // virtual void Init();
virtual Int_t IsVersion(void) const = 0 ;
virtual AliTriggerDetector* CreateTriggerDetector() const
{ return new AliEMCALTrigger(); }
- // Raw Read Out
- Double_t GetRawFormatCapa() const { return fgCapa ; }
- Double_t GetRawFormatHighCharge() const { return fHighCharge ; }
- Double_t GetRawFormatHighGain() const { return fHighGain ; }
- Double_t GetRawFormatHighLowGainFactor() const { return fHighLowGainFactor ; }
- Double_t GetRawFormatLowCharge() const { return ( fHighCharge * fHighLowGainFactor ) ; }
- Double_t GetRawFormatLowGain() const { return ( fHighGain / fHighLowGainFactor ) ; }
- Int_t GetRawFormatLowGainOffset() const { return fLowGainOffset ; }
- Int_t GetRawFormatOrder() const { return fgOrder ; }
- Int_t GetRawFormatTimeBins() const { return fgkTimeBins ; }
- Double_t GetRawFormatTimeMax() const { return fgTimeMax ; }
- Double_t GetRawFormatTimePeak() const { return fgTimePeak ; }
- Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; }
- Int_t GetRawFormatThreshold() const { return fgThreshold ; }
- Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; }
- static Double_t RawResponseFunctionMax(Double_t charge, Double_t gain) ;
- Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const ;
- //
+ //
virtual AliLoader* MakeLoader(const char* topfoldername);
virtual const TString Version() const {return TString(" ") ; }
protected:
-
- static Double_t RawResponseFunction(Double_t *x, Double_t *par) ;
- void FitRaw(Bool_t lowGainFlag, TGraph * gLowGain, TGraph * gHighGain, TF1* signalF, Double_t & energy, Double_t & time) ;
-
void InitConstants(); //initializes some params
void DefineMediumParameters(); // define tracking medium parameters
Double_t fBirkC1; // constants for Birk's Law implementation
Double_t fBirkC2; // constants for Birk's Law implementation
- static Double_t fgCapa ; // capacitor of the preamplifier for the raw RO signal
- Double_t fHighCharge ; // high charge (to convert energy to charge) for the raw RO signal
- Double_t fHighGain ; // high gain for the raw RO signal
- Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal
- Int_t fLowGainOffset ; // to separate high from low gain in the DDL
- static Int_t fgOrder ; // order of the gamma function for the RO signal
- static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal
- static Double_t fgTimeMax ; // maximum sampled time of the raw RO signal
- static Double_t fgTimePeak ; // peaking time of the raw RO signal
- static Double_t fgTimeTrigger ; // time of the trigger for the RO signal
- static Int_t fgThreshold; // threshold
- static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule
-
AliEMCALGeometry* fGeometry; //!
private:
AliEMCAL(const AliEMCAL& emcal);
AliEMCAL & operator = (const AliEMCAL & /*rvalue*/);
- ClassDef(AliEMCAL,9) // Electromagnetic calorimeter (base class)
+ ClassDef(AliEMCAL,10) // Electromagnetic calorimeter (base class)
- } ;
+} ;
#endif // ALIEMCAL_H
--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/* $Id$ */
+/* History of cvs commits:
+ *
+ * $Log$ */
+
+//*-- Author: Marco van Leeuwen (LBL)
+#include "AliEMCALRawUtils.h"
+
+#include "TF1.h"
+#include "TGraph.h"
+#include "TSystem.h"
+
+#include "AliLog.h"
+#include "AliRunLoader.h"
+#include "AliCaloAltroMapping.h"
+#include "AliAltroBuffer.h"
+#include "AliRawReader.h"
+#include "AliCaloRawStream.h"
+#include "AliDAQ.h"
+
+#include "AliEMCALLoader.h"
+#include "AliEMCALGeometry.h"
+#include "AliEMCALDigitizer.h"
+#include "AliEMCALDigit.h"
+
+
+ClassImp(AliEMCALRawUtils)
+
+// Signal shape parameters
+Int_t AliEMCALRawUtils::fgOrder = 2 ; // Order of gamma function
+Double_t AliEMCALRawUtils::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins
+Double_t AliEMCALRawUtils::fgTau = 165E-9 ; // 165 ns (from testbeam; not very accurate)
+Double_t AliEMCALRawUtils::fgTimeTrigger = 1.5E-6 ; // 15 time bins ~ 1.5 musec
+
+// some digitization constants
+Int_t AliEMCALRawUtils::fgThreshold = 1;
+Int_t AliEMCALRawUtils::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule
+
+AliEMCALRawUtils::AliEMCALRawUtils(): fHighLowGainFactor(0.) {
+ fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits)
+}
+//____________________________________________________________________________
+AliEMCALRawUtils::~AliEMCALRawUtils() {
+}
+//____________________________________________________________________________
+void AliEMCALRawUtils::Digits2Raw()
+{
+ // convert digits of the current event to raw data
+
+ AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ AliEMCALLoader *loader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
+
+ // get the digits
+ loader->LoadDigits("EMCAL");
+ loader->GetEvent();
+ TClonesArray* digits = loader->Digits() ;
+
+ if (!digits) {
+ Warning("Digits2Raw", "no digits found !");
+ return;
+ }
+
+ // get the geometry
+ AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance();
+ if (!geom) {
+ AliError(Form("No geometry found !"));
+ return;
+ }
+
+ static const Int_t nDDL = 12*2; // 12 SM hardcoded for now. Buffers allocated dynamically, when needed, so just need an upper limit here
+ AliAltroBuffer* buffers[nDDL];
+ for (Int_t i=0; i < nDDL; i++)
+ buffers[i] = 0;
+
+ Int_t adcValuesLow[fgkTimeBins];
+ Int_t adcValuesHigh[fgkTimeBins];
+
+ //Load Mapping RCU files once
+ TString path = gSystem->Getenv("ALICE_ROOT");
+ path += "/EMCAL/mapping/RCU";
+ TString path0 = path+"0.data";//This file will change in future
+ TString path1 = path+"1.data";//This file will change in future
+ AliAltroMapping * mapping[2] ; // For the moment only 2
+ mapping[0] = new AliCaloAltroMapping(path0.Data());
+ mapping[1] = new AliCaloAltroMapping(path1.Data());
+
+ // loop over digits (assume ordered digits)
+ for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) {
+ AliEMCALDigit* digit = dynamic_cast<AliEMCALDigit *>(digits->At(iDigit)) ;
+ if (digit->GetAmp() < fgThreshold)
+ continue;
+
+ //get cell indices
+ Int_t nSM = 0;
+ Int_t nIphi = 0;
+ Int_t nIeta = 0;
+ Int_t iphi = 0;
+ Int_t ieta = 0;
+ Int_t nModule = 0;
+ geom->GetCellIndex(digit->GetId(), nSM, nModule, nIphi, nIeta);
+ geom->GetCellPhiEtaIndexInSModule(nSM, nModule, nIphi, nIeta,iphi, ieta) ;
+
+ //Check which is the RCU of the cell.
+ Int_t iRCU = -111;
+ //RCU0
+ if (0<=iphi&&iphi<8) iRCU=0; // first cable row
+ else if (8<=iphi&&iphi<16 && 0<=ieta&&ieta<24) iRCU=0; // first half;
+ //second cable row
+ //RCU1
+ else if(8<=iphi&&iphi<16 && 24<=ieta&&ieta<48) iRCU=1; // second half;
+ //second cable row
+ else if(16<=iphi&&iphi<24) iRCU=1; // third cable row
+
+ //Which DDL?
+ Int_t iDDL = fgDDLPerSuperModule* nSM + iRCU;
+ if (iDDL >= nDDL)
+ Fatal("Digits2Raw()","Non-existent DDL board number: %d", iDDL);
+
+ if (buffers[iDDL] == 0) {
+ // open new file and write dummy header
+ TString fileName = AliDAQ::DdlFileName("EMCAL",iDDL);
+ buffers[iDDL] = new AliAltroBuffer(fileName.Data(),mapping[iRCU]);
+ buffers[iDDL]->WriteDataHeader(kTRUE, kFALSE); //Dummy;
+ }
+
+ // out of time range signal (?)
+ if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
+ AliInfo("Signal is out of time range.\n");
+ buffers[iDDL]->FillBuffer((Int_t)digit->GetAmp());
+ buffers[iDDL]->FillBuffer(GetRawFormatTimeBins() ); // time bin
+ buffers[iDDL]->FillBuffer(3); // bunch length
+ buffers[iDDL]->WriteTrailer(3, ieta, iphi, nSM); // trailer
+ // calculate the time response function
+ } else {
+ Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), digit->GetAmp(), adcValuesHigh, adcValuesLow) ;
+ if (lowgain)
+ buffers[iDDL]->WriteChannel(ieta, iphi, 0, GetRawFormatTimeBins(), adcValuesLow, fgThreshold);
+ else
+ buffers[iDDL]->WriteChannel(ieta,iphi, 1, GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
+ }
+ }
+
+ // write headers and close files
+ for (Int_t i=0; i < nDDL; i++) {
+ if (buffers[i]) {
+ buffers[i]->Flush();
+ buffers[i]->WriteDataHeader(kFALSE, kFALSE);
+ delete buffers[i];
+ }
+ }
+ mapping[0]->Delete();
+ mapping[1]->Delete();
+ loader->UnloadDigits();
+}
+
+//____________________________________________________________________________
+void AliEMCALRawUtils::Raw2Digits(AliRawReader* reader)
+{
+ // convert raw data of the current event to digits
+ AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
+ if (!geom) {
+ AliError(Form("No geometry found !"));
+ return;
+ }
+
+ AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ AliEMCALLoader *loader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
+
+ // get the digits
+ TClonesArray* digits = loader->Digits() ;
+ digits->Clear();
+
+ if (!digits) {
+ Error("Raw2Digits", "no digits found !");
+ return;
+ }
+ if (!reader) {
+ Error("Raw2Digits", "no raw reader found !");
+ return;
+ }
+
+ // Use AliAltroRawStream to read the ALTRO format. No need to
+ // reinvent the wheel :-)
+ AliCaloRawStream in(reader,"EMCAL");
+ // Select EMCAL DDL's;
+ reader->Select("EMCAL");
+
+ // reading is from previously existing AliEMCALGetter.cxx
+ // ReadRaw method
+ TF1 * signalF = new TF1("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
+ signalF->SetParNames("Charge", "Gain", "Amplitude", "TimeZero");
+
+ Int_t id = -1;
+ Int_t idigit = 0 ;
+ Double_t time = 0. ;
+ Double_t amp = 0. ;
+
+ TGraph * gSig = new TGraph(GetRawFormatTimeBins()) ;
+
+ Int_t eofReached = 0;
+ Int_t lowGain = 0;
+
+ in.Next(); // Go to first digit
+ do {
+ id = geom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ;
+ lowGain = in.IsLowGain();
+ gSig->SetPoint(in.GetTime(),
+ in.GetTime()* GetRawFormatTimeMax() / GetRawFormatTimeBins(),
+ in.GetSignal()) ;
+
+ Int_t iTime = 1;
+ do {
+ if (!in.Next())
+ eofReached = 1;
+ else {
+ gSig->SetPoint(in.GetTime(),
+ in.GetTime()* GetRawFormatTimeMax() / GetRawFormatTimeBins(),
+ in.GetSignal()) ;
+ }
+ iTime++;
+ } while (!eofReached && !in.IsNewRow() && !in.IsNewColumn() && !in.IsNewModule());
+
+ FitRaw(gSig, signalF, amp, time) ;
+ if (lowGain)
+ amp *= fHighLowGainFactor;
+
+ if (amp > 0) {
+ AliDebug(2,Form("id %d amp %g", id, amp));
+ new((*digits)[idigit]) AliEMCALDigit( -1, -1, id, (Int_t)amp, time, idigit) ;
+ idigit++ ;
+ }
+ Int_t index ;
+
+ // Reset graph
+ for (index = 0; index < GetRawFormatTimeBins(); index++) {
+ gSig->SetPoint(index, index * GetRawFormatTimeMax() / GetRawFormatTimeBins(), 0) ;
+ }
+ } while (!eofReached); // EMCAL entries loop
+
+ delete signalF ;
+ delete gSig;
+
+ return ;
+}
+
+//____________________________________________________________________________
+void AliEMCALRawUtils::FitRaw(TGraph * gSig, TF1* signalF, Double_t & amp, Double_t & time)
+{
+ // Fits the raw signal time distribution; from AliEMCALGetter
+
+ const Int_t kNoiseThreshold = 0 ;
+ Double_t timezero1 = 0., timezero2 = 0., timemax = 0. ;
+ Double_t signal = 0., signalmax = 0. ;
+ amp = time = 0. ;
+
+ timezero1 = signalmax = timemax = 0. ;
+ timezero2 = GetRawFormatTimeMax();
+ Int_t index ;
+ for (index = 0; index < GetRawFormatTimeBins(); index++) {
+ gSig->GetPoint(index, time, signal) ;
+ if (signal > kNoiseThreshold && timezero1 == 0.)
+ timezero1 = time ;
+ if (signal <= kNoiseThreshold && timezero1 > 0. && timezero2 == 0.)
+ timezero2 = time ;
+ if (signal > signalmax) {
+ signalmax = signal ;
+ timemax = time ;
+ }
+ }
+
+ if ( timemax < GetRawFormatTimeMax() * 0.4 ) { // else its noise
+ signalF->SetParameter(0, signalmax) ;
+ signalF->SetParameter(1, timemax) ;
+ gSig->Fit(signalF, "QRON", "", 0., timezero2); //, "QRON") ;
+ amp = signalF->GetParameter(0) ;
+ time = signalF->GetParameter(1) - fgTimeTrigger;
+ }
+ return;
+}
+//__________________________________________________________________
+Double_t AliEMCALRawUtils::RawResponseFunction(Double_t *x, Double_t *par)
+{
+ // Shape of the electronics raw reponse:
+ // It is a semi-gaussian, 2nd order Gamma function of the general form
+ //
+ // t' = (t - t0 + tau) / tau
+ // F = A * t**N * exp( N * ( 1 - t) ) for t >= 0
+ // F = 0 for t < 0
+ //
+ // parameters:
+ // A: par[0] // Amplitude = peak value
+ // t0: par[1]
+ // tau: fgTau
+ // N: fgOrder
+ //
+ Double_t signal ;
+ Double_t xx = ( x[0] - par[1] + fgTau ) / fgTau ;
+
+ if (xx < 0)
+ signal = 0. ;
+ else {
+ signal = par[0] * TMath::Power(xx , fgOrder) * TMath::Exp(fgOrder * (1 - xx )) ;
+ }
+ return signal ;
+}
+
+//__________________________________________________________________
+Bool_t AliEMCALRawUtils::RawSampledResponse(
+const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const
+{
+ // for a start time dtime and an amplitude damp given by digit,
+ // calculates the raw sampled response AliEMCAL::RawResponseFunction
+
+ const Int_t kRawSignalOverflow = 0x3FF ;
+ Bool_t lowGain = kFALSE ;
+
+ TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4);
+ signalF.SetParameter(0, damp) ;
+ signalF.SetParameter(1, dtime + fgTimeTrigger) ;
+
+ for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) {
+ Double_t time = iTime * GetRawFormatTimeMax() / GetRawFormatTimeBins() ;
+ Double_t signal = signalF.Eval(time) ;
+ adcH[iTime] = static_cast<Int_t>(signal + 0.5) ;
+ if ( adcH[iTime] > kRawSignalOverflow ){ // larger than 10 bits
+ adcH[iTime] = kRawSignalOverflow ;
+ lowGain = kTRUE ;
+ }
+
+ signal /= fHighLowGainFactor;
+
+ adcL[iTime] = static_cast<Int_t>(signal + 0.5) ;
+ if ( adcL[iTime] > kRawSignalOverflow) // larger than 10 bits
+ adcL[iTime] = kRawSignalOverflow ;
+ }
+ return lowGain ;
+}
--- /dev/null
+#ifndef ALIEMCALRAWUTILS_H
+#define ALIEMCALRAWUTILS_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/* $Id$ */
+/* History of cvs commits:
+ *
+ * $Log$
+ *
+ */
+//_________________________________________________________________________
+// Utility Class for handling Raw data
+// Does all transitions from Digits to Raw and vice versa,
+// for simu and reconstruction
+//
+// Note: the current version is still simplified. Only
+// one raw signal per digit is generated; either high-gain or low-gain
+// Need to add concurrent high and low-gain info in the future
+// No pedestal is added to the raw signal.
+//
+//*-- Author: Marco van Leeuwen (LBL)
+//
+#include "TObject.h" // for ROOT types
+
+class TGraph;
+class TF1;
+class AliRawReader;
+
+class AliEMCALRawUtils : public TObject {
+ public:
+ AliEMCALRawUtils();
+ virtual ~AliEMCALRawUtils();
+
+ void Digits2Raw();
+ void Raw2Digits(AliRawReader *reader);
+
+ // Signal shape parameters
+ Double_t GetRawFormatHighLowGainFactor() const {return fHighLowGainFactor ;}
+ static Int_t GetRawFormatOrder() { return fgOrder ; }
+ static Int_t GetRawFormatTimeBins() { return fgkTimeBins ; }
+ static Double_t GetRawFormatTimeMax() { return fgTimeMax ; }
+ Double_t GetRawFormatTau() const { return fgTau ; }
+ Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; }
+ Int_t GetRawFormatThreshold() const { return fgThreshold ; }
+ Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; }
+
+ // Signal shape functions
+ void FitRaw(TGraph * gSig, TF1* signalF, Double_t & amp, Double_t & time);
+ static Double_t RawResponseFunction(Double_t *x, Double_t *par);
+ Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const;
+
+ ClassDef(AliEMCALRawUtils,0)
+
+ private:
+ Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal
+ static Int_t fgOrder ; // order of the gamma function for the RO signal
+ static Double_t fgTau ; // tau parameter of gamma function for the RO signal
+ static Double_t fgTimeTrigger ; // time of the trigger for the RO signal
+
+ static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal
+ static Double_t fgTimeMax ; // maximum sampled time of the raw RO signal
+ static Int_t fgThreshold; // threshold
+ static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule
+};
+
+#endif
AliEMCALDigit.cxx \
AliEMCALCalibData.cxx \
AliEMCALCalibHistoProducer.cxx \
-AliEMCALPreprocessor.cxx
+AliEMCALPreprocessor.cxx \
+AliEMCALRawUtils.cxx
HDRS= $(SRCS:.cxx=.h)
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff