**************************************************************************/
/* $Id$ */
-
//_________________________________________________________________________
// Base Class for EMCAL description:
// This class contains material definitions
// --- ROOT system ---
class TFile;
#include <TFolder.h>
-#include <TTree.h>
-#include <TVirtualMC.h>
+#include <TGeoGlobalMagField.h>
+#include <TGraph.h>
#include <TH1F.h>
-#include <TF1.h>
#include <TRandom.h>
-#include <TGraph.h>
+#include <TTree.h>
+#include <TVirtualMC.h>
// --- Standard library ---
#include "AliEMCALSDigitizer.h"
#include "AliEMCALDigitizer.h"
#include "AliEMCALDigit.h"
-#include "AliAltroBuffer.h"
-#include "AliRawReader.h"
-#include "AliEMCALRawStream.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::fgDDLOffset = 0x800;
-Int_t AliEMCAL::fgThreshold = 1;
-// 24*48=1152 towers per SM; divided up on 3 DDLs,
-// each DDL with 12FEC *32towers or 12*32*2 channels (high&low gain)
-Int_t AliEMCAL::fgChannelsPerDDL = 768; // 2*(1152/3 or 12*32)
-
+
//____________________________________________________________________________
-AliEMCAL::AliEMCAL():AliDetector()
+AliEMCAL::AliEMCAL()
+ : AliDetector(),
+ fBirkC0(0),
+ fBirkC1(0.),
+ fBirkC2(0.),
+ fGeometry(0)
{
// Default ctor
fName = "EMCAL" ;
+ InitConstants();
+
+ // Should call AliEMCALGeometry::GetInstance(EMCAL->GetTitle(),"") for getting EMCAL geometry
}
//____________________________________________________________________________
-AliEMCAL::AliEMCAL(const char* name, const char* title): AliDetector(name,title)
+AliEMCAL::AliEMCAL(const char* name, const char* title)
+ : AliDetector(name,title),
+ fBirkC0(0),
+ fBirkC1(0.),
+ fBirkC2(0.),
+ fGeometry(0)
{
// ctor : title is used to identify the layout
-
- 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
+ InitConstants();
}
//____________________________________________________________________________
AliEMCAL::~AliEMCAL()
{
-
+ //dtor
}
//____________________________________________________________________________
-void AliEMCAL::Copy(AliEMCAL & emcal) const
+void AliEMCAL::InitConstants()
{
- TObject::Copy(emcal) ;
- emcal.fHighCharge = fHighCharge ;
- emcal.fHighGain = fHighGain ;
- emcal.fHighLowGainFactor = fHighLowGainFactor ;
- emcal.fLowGainOffset = fLowGainOffset;
-}
+ //initialize EMCAL values
+ fBirkC0 = 1;
+ fBirkC1 = 0.013/1.032;
+ fBirkC2 = 9.6e-6/(1.032 * 1.032);
+ }
+
+//Not needed, modify $ALICE_ROOT/data/galice.cuts instead.
+//Load the modified one in the configuration file with SetTransPar
+// //____________________________________________________________________________
+// void AliEMCAL::DefineMediumParameters()
+// {
+// //
+// // EMCAL cuts (Geant3)
+// //
+// Int_t * idtmed = fIdtmed->GetArray() - 1599 ;
+// // --- Set decent energy thresholds for gamma and electron tracking
+
+// // Tracking threshold for photons and electrons in Lead
+// Float_t cutgam=10.e-5; // 100 kev;
+// Float_t cutele=10.e-5; // 100 kev;
+// TString ntmp(GetTitle());
+// ntmp.ToUpper();
+// if(ntmp.Contains("10KEV")) {
+// cutele = cutgam = 1.e-5;
+// } else if(ntmp.Contains("50KEV")) {
+// cutele = cutgam = 5.e-5;
+// } else if(ntmp.Contains("100KEV")) {
+// cutele = cutgam = 1.e-4;
+// } else if(ntmp.Contains("200KEV")) {
+// cutele = cutgam = 2.e-4;
+// } else if(ntmp.Contains("500KEV")) {
+// cutele = cutgam = 5.e-4;
+// }
+
+// gMC->Gstpar(idtmed[1600],"CUTGAM", cutgam);
+// gMC->Gstpar(idtmed[1600],"CUTELE", cutele); // 1MEV -> 0.1MEV; 15-aug-05
+// gMC->Gstpar(idtmed[1600],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
+// gMC->Gstpar(idtmed[1600],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
+// // --- Generate explicitly delta rays in Lead ---
+// gMC->Gstpar(idtmed[1600], "LOSS", 3) ;
+// gMC->Gstpar(idtmed[1600], "DRAY", 1) ;
+// gMC->Gstpar(idtmed[1600], "DCUTE", cutele) ;
+// gMC->Gstpar(idtmed[1600], "DCUTM", cutele) ;
+
+// // --- in aluminium parts ---
+// gMC->Gstpar(idtmed[1602],"CUTGAM", cutgam) ;
+// gMC->Gstpar(idtmed[1602],"CUTELE", cutele) ;
+// gMC->Gstpar(idtmed[1602],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
+// gMC->Gstpar(idtmed[1602],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
+// gMC->Gstpar(idtmed[1602], "LOSS",3.) ;
+// gMC->Gstpar(idtmed[1602], "DRAY",1.) ;
+// gMC->Gstpar(idtmed[1602], "DCUTE", cutele) ;
+// gMC->Gstpar(idtmed[1602], "DCUTM", cutele) ;
+
+// // --- and finally thresholds for photons and electrons in the scintillator ---
+// gMC->Gstpar(idtmed[1601],"CUTGAM", cutgam) ;
+// gMC->Gstpar(idtmed[1601],"CUTELE", cutele) ;// 1MEV -> 0.1MEV; 15-aug-05
+// gMC->Gstpar(idtmed[1601],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
+// gMC->Gstpar(idtmed[1601],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
+// gMC->Gstpar(idtmed[1601], "LOSS",3) ; // generate delta rays
+// gMC->Gstpar(idtmed[1601], "DRAY",1) ;
+// gMC->Gstpar(idtmed[1601], "DCUTE", cutele) ;
+// gMC->Gstpar(idtmed[1601], "DCUTM", cutele) ;
+
+// // S steel -
+// gMC->Gstpar(idtmed[1603],"CUTGAM", cutgam);
+// gMC->Gstpar(idtmed[1603],"CUTELE", cutele);
+// gMC->Gstpar(idtmed[1603],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
+// gMC->Gstpar(idtmed[1603],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
+// // --- Generate explicitly delta rays
+// gMC->Gstpar(idtmed[1603], "LOSS",3);
+// gMC->Gstpar(idtmed[1603], "DRAY",1);
+// gMC->Gstpar(idtmed[1603], "DCUTE", cutele) ;
+// gMC->Gstpar(idtmed[1603], "DCUTM", cutele) ;
+
+// AliEMCALGeometry* geom = GetGeometry();
+// if(geom->GetILOSS()>=0) {
+// for(int i=1600; i<=1603; i++) gMC->Gstpar(idtmed[i], "LOSS", geom->GetILOSS()) ;
+// }
+// if(geom->GetIHADR()>=0) {
+// for(int i=1600; i<=1603; i++) gMC->Gstpar(idtmed[i], "HADR", geom->GetIHADR()) ;
+// }
+// }
//____________________________________________________________________________
AliDigitizer* AliEMCAL::CreateDigitizer(AliRunDigitizer* manager) const
{
+ //create and return the digitizer
return new AliEMCALDigitizer(manager);
}
{
// Definitions of materials to build EMCAL and associated tracking media.
// media number in idtmed are 1599 to 1698.
-
// --- Air ---
Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
Float_t zAir[4]={6.,7.,8.,18.};
// DEFINITION OF THE TRACKING MEDIA
// for EMCAL: idtmed[1599->1698] equivalent to fIdtmed[0->100]
- Int_t * idtmed = fIdtmed->GetArray() - 1599 ;
- Int_t isxfld = gAlice->Field()->Integ() ;
- Float_t sxmgmx = gAlice->Field()->Max() ;
+ Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ() ;
+ Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max() ;
// Air -> idtmed[1599]
AliMedium(0, "Air$", 0, 0,
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 < deemax )
AliMedium(2, "Scintillator$", 2, 1,
- isxfld, sxmgmx, 10.0, 0.001, 0.1, 0.001, 0.001, 0, 0) ;
+ isxfld, sxmgmx, 10.0, 0.001, deemax, 0.001, 0.001, 0, 0) ;
// Various Aluminium parts made of Al -> idtmed[1602]
AliMedium(3, "Al$", 3, 0,
AliMedium(4, "S steel$", 4, 0,
isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
-// --- Set decent energy thresholds for gamma and electron tracking
-
- // Tracking threshold for photons and electrons in Lead
- Float_t cutgam=10.e-5; // 100 kev;
- Float_t cutele=10.e-5; // 100 kev;
- TString ntmp(GetTitle());
- ntmp.ToUpper();
- if(ntmp.Contains("10KEV")) {
- cutele = cutgam = 1.e-5;
- } else if(ntmp.Contains("50KEV")) {
- cutele = cutgam = 5.e-5;
- } else if(ntmp.Contains("100KEV")) {
- cutele = cutgam = 1.e-4;
- } else if(ntmp.Contains("200KEV")) {
- cutele = cutgam = 2.e-4;
- } else if(ntmp.Contains("500KEV")) {
- cutele = cutgam = 5.e-4;
- }
-
- gMC->Gstpar(idtmed[1600],"CUTGAM", cutgam);
- gMC->Gstpar(idtmed[1600],"CUTELE", cutele); // 1MEV -> 0.1MEV; 15-aug-05
- gMC->Gstpar(idtmed[1600],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
- gMC->Gstpar(idtmed[1600],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
- // --- Generate explicitly delta rays in Lead ---
- gMC->Gstpar(idtmed[1600], "LOSS",3.) ;
- gMC->Gstpar(idtmed[1600], "DRAY",1.) ;
- gMC->Gstpar(idtmed[1600], "DCUTE", cutele) ;
- gMC->Gstpar(idtmed[1600], "DCUTM", cutele) ;
-
-// --- in aluminium parts ---
- gMC->Gstpar(idtmed[1602],"CUTGAM", cutgam) ;
- gMC->Gstpar(idtmed[1602],"CUTELE", cutele) ;
- gMC->Gstpar(idtmed[1602],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
- gMC->Gstpar(idtmed[1602],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
- gMC->Gstpar(idtmed[1602], "LOSS",3.) ;
- gMC->Gstpar(idtmed[1602], "DRAY",1.) ;
- gMC->Gstpar(idtmed[1602], "DCUTE", cutele) ;
- gMC->Gstpar(idtmed[1602], "DCUTM", cutele) ;
-
-// --- and finally thresholds for photons and electrons in the scintillator ---
- gMC->Gstpar(idtmed[1601],"CUTGAM", cutgam) ;
- gMC->Gstpar(idtmed[1601],"CUTELE", cutele) ;// 1MEV -> 0.1MEV; 15-aug-05
- gMC->Gstpar(idtmed[1601],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
- gMC->Gstpar(idtmed[1601],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
- gMC->Gstpar(idtmed[1601], "LOSS",3.) ; // generate delta rays
- gMC->Gstpar(idtmed[1601], "DRAY",1.) ;
- gMC->Gstpar(idtmed[1601], "DCUTE", cutele) ;
- gMC->Gstpar(idtmed[1601], "DCUTM", cutele) ;
-
- // S steel -
- gMC->Gstpar(idtmed[1603],"CUTGAM", cutgam);
- gMC->Gstpar(idtmed[1603],"CUTELE", cutele);
- gMC->Gstpar(idtmed[1603],"BCUTE", cutgam); // BCUTE and BCUTM start from GUTGUM
- gMC->Gstpar(idtmed[1603],"BCUTM", cutgam); // BCUTE and BCUTM start from GUTGUM
- // --- Generate explicitly delta rays
- gMC->Gstpar(idtmed[1603], "LOSS",3.);
- gMC->Gstpar(idtmed[1603], "DRAY",1.);
- gMC->Gstpar(idtmed[1603], "DCUTE", cutele) ;
- gMC->Gstpar(idtmed[1603], "DCUTM", cutele) ;
//set constants for Birk's Law implentation
fBirkC0 = 1;
fBirkC2 = 9.6e-6/(dP * dP);
}
-
-//____________________________________________________________________________
-void AliEMCAL::Digits2Raw()
-{
- // convert digits of the current event to raw data
- AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
-
- // get the digits
- loader->LoadDigits("EMCAL");
- TClonesArray* digits = loader->Digits() ;
-
- if (!digits) {
- Error("Digits2Raw", "no digits found !");
- return;
- }
-
- // get the digitizer
- loader->LoadDigitizer();
- AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
-
-
- AliAltroBuffer* buffer = NULL;
- Int_t prevDDL = -1;
- Int_t adcValuesLow[fkTimeBins];
- Int_t adcValuesHigh[fkTimeBins];
-
- // 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;
- Int_t iDDL = digit->GetId() / fgChannelsPerDDL ;
- // for each DDL id is numbered from 1 to fgChannelsperDDL -1
- Int_t idDDL = digit->GetId() - iDDL * ( fgChannelsPerDDL - 1 ) ;
- // 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("EMCAL_") ;
- fileName += (iDDL + fgDDLOffset) ;
- fileName += ".ddl" ;
- buffer = new AliAltroBuffer(fileName.Data(), 1);
- buffer->WriteDataHeader(kTRUE, kFALSE); //Dummy;
-
- prevDDL = iDDL;
- }
-
- // out of time range signal (?)
- if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
- buffer->FillBuffer(digit->GetAmp());
- buffer->FillBuffer(GetRawFormatTimeBins() ); // time bin
- buffer->FillBuffer(3); // bunch length
- buffer->WriteTrailer(3, idDDL, 0, 0); // trailer
-
- // calculate the time response function
- } else {
- Double_t energy = 0 ;
- energy = digit->GetAmp() * digitizer->GetECAchannel() + digitizer->GetECApedestal() ;
-
- Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
-
- if (lowgain)
- buffer->WriteChannel(iDDL, 0, fLowGainOffset,
- GetRawFormatTimeBins(), adcValuesLow, fgThreshold);
- else
- buffer->WriteChannel(iDDL, 0, 0,
- GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
-
- }
- }
-
- // write real header and close last file
- if (buffer) {
- buffer->Flush();
- buffer->WriteDataHeader(kFALSE, kFALSE);
- delete buffer;
- }
-
- loader->UnloadDigits();
-}
//____________________________________________________________________________
-void AliEMCAL::Raw2Digits(AliRawReader* reader)
-{
- // convert raw data of the current event to digits
- 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;
- }
+void AliEMCAL::Init()
+{
+ // Init
+ //Not needed, modify $ALICE_ROOT/data/galice.cuts instead.
+ //Load the modified one in the configuration file with SetTransPar
+ //DefineMediumParameters();
+}
- // and get the digitizer too
- loader->LoadDigitizer();
- AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
+//____________________________________________________________________________
+void AliEMCAL::Digits2Raw() {
- // Use AliAltroRawStream to read the ALTRO format. No need to
- // reinvent the wheel :-)
- AliEMCALRawStream in(reader);
- // Select EMCAL DDL's; lowest 8 bits of DDL offser is used for something else..
- reader->Select(fgDDLOffset >> 8);
+ static AliEMCALRawUtils rawUtils;
+ rawUtils.Digits2Raw();
- // 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");
-
- Int_t id = -1;
- Bool_t lowGainFlag = kFALSE ;
-
- 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.IsNewId() ) {
- 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 = in.GetId() ;
- if (in.GetModule() == GetRawFormatLowGainOffset() ) {
- lowGainFlag = kTRUE ;
- }
- else {
- lowGainFlag = kFALSE ;
- }
- } // new Id?
- 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;
}
-
//____________________________________________________________________________
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)
-{
- 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