/* History of cvs commits:
*
* $Log$
+
+ * Revision 1.54 2007/12/06 10:31:13 hristov
+ * Bug fix: using the mapping from CDB
+ *
+ * Revision 1.53.10.1 2007/12/06 10:29:59 hristov
+ * Bug fix: using the mapping from CDB
+ *
+ * Revision 1.53 2007/03/17 19:56:38 mvl
+ * Moved signal shape routines from AliEMCAL to separate class AliEMCALRawUtils to streamline raw data reconstruction code.
+ *
+ * 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
+ *
* Revision 1.50 2007/02/05 10:43:25 hristov
* Changes for correct initialization of Geant4 (Mihaela)
*
#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"
+#include "AliCDBManager.h"
+#include "AliCDBEntry.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
fName = "EMCAL" ;
InitConstants();
+ // Should call AliEMCALGeometry::GetInstance(EMCAL->GetTitle(),"") for getting EMCAL geometry
}
//____________________________________________________________________________
fBirkC0(0),
fBirkC1(0.),
fBirkC2(0.),
- fHighCharge(0.),
- fHighGain(0.),
- fHighLowGainFactor(0.),
- fLowGainOffset(0)
+ fGeometry(0)
{
// ctor : title is used to identify the layout
InitConstants();
-
}
//____________________________________________________________________________
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;
+void AliEMCAL::Digits2Raw() {
+ static AliEMCALRawUtils rawUtil;
+ //Get Mapping RCU files from the AliEMCALRecParam
+ static AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Mapping");
+ const TObjArray* maps = 0x0;
+ if(entry)
+ maps = (TObjArray*)entry->GetObject();
+
+ if(!maps) AliFatal("Cannot retrieve ALTRO mappings!!");
+
+ AliAltroMapping * mapping[2] ; // For the moment only 2
+ for(Int_t i = 0; i < 2; i++) {
+ mapping[i] = (AliAltroMapping*)maps->At(i);
}
- 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::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;
+ rawUtil.Digits2Raw(mapping);
}
-
//____________________________________________________________________________
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 ;
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff