// --- ROOT system ---
class TFile;
-#include "TBranch.h"
-#include "TClonesArray.h"
-#include "TTree.h"
+#include <TFolder.h>
+#include <TTree.h>
+#include <TVirtualMC.h>
+#include <TH1F.h>
+#include <TF1.h>
+#include <TRandom.h>
// --- Standard library ---
-#include <strstream.h>
// --- AliRoot header files ---
+#include "AliMagF.h"
#include "AliEMCAL.h"
-#include "AliMC.h"
#include "AliRun.h"
-#include "AliMagF.h"
-#include "AliEMCALGeometry.h"
-//#include "AliEMCALQAChecker.h"
+#include "AliEMCALLoader.h"
+#include "AliEMCALSDigitizer.h"
+#include "AliEMCALDigitizer.h"
+#include "AliEMCALDigit.h"
+#include "AliAltroBuffer.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
+
//____________________________________________________________________________
AliEMCAL::AliEMCAL():AliDetector()
{
// Default ctor
- fName="EMCAL";
- //fQATask = 0;
- fTreeQA = 0;
+ fName = "EMCAL" ;
}
//____________________________________________________________________________
AliEMCAL::AliEMCAL(const char* name, const char* title): AliDetector(name,title)
{
// ctor : title is used to identify the layout
-
- //fQATask = 0;
- fTreeQA = 0;
+
+ 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::Copy(AliEMCAL & emcal) const
+{
+ TObject::Copy(emcal) ;
+ emcal.fHighCharge = fHighCharge ;
+ emcal.fHighGain = fHighGain ;
+ emcal.fHighLowGainFactor = fHighLowGainFactor ;
+ emcal.fLowGainOffset = fLowGainOffset;
+}
+
+//____________________________________________________________________________
+AliDigitizer* AliEMCAL::CreateDigitizer(AliRunDigitizer* manager) const
+{
+ return new AliEMCALDigitizer(manager);
+}
+
//____________________________________________________________________________
void AliEMCAL::CreateMaterials()
{
// Definitions of materials to build EMCAL and associated tracking media.
// media number in idtmed are 1599 to 1698.
- // --- Air ---
- AliMaterial(0, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ;
-
+ // --- Air ---
+ Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
+ Float_t zAir[4]={6.,7.,8.,18.};
+ Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
+ Float_t dAir = 1.20479E-3;
+ AliMixture(0, "Air$", aAir, zAir, dAir, 4, wAir) ;
// --- Lead ---
AliMaterial(1, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
AliMaterial(3, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
// --- Absorption length is ignored ^
-
+ // 25-aug-04 by PAI - see PMD/AliPMDv0.cxx for STEEL definition
+ Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
+ Float_t zsteel[4] = { 26.,24.,28.,14. };
+ Float_t wsteel[4] = { .715,.18,.1,.005 };
+ AliMixture(4, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
// DEFINITION OF THE TRACKING MEDIA
Int_t * idtmed = fIdtmed->GetArray() - 1599 ;
Int_t isxfld = gAlice->Field()->Integ() ;
Float_t sxmgmx = gAlice->Field()->Max() ;
-
-
- // Air -> idtmed[1599]
- AliMedium(0, "Air $", 0, 0,
+ // Air -> idtmed[1599]
+ AliMedium(0, "Air$", 0, 0,
isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
- // The Lead -> idtmed[1600]
+ // The Lead -> idtmed[1600]
- AliMedium(1, "Lead $", 1, 0,
+ AliMedium(1, "Lead$", 1, 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]
- AliMedium(2, "CPV scint. $", 2, 1,
+ AliMedium(2, "Scintillator$", 2, 1,
isxfld, sxmgmx, 10.0, 0.001, 0.1, 0.001, 0.001, 0, 0) ;
- // Various Aluminium parts made of Al -> idtmed[1602]
- AliMedium(3, "Al parts $", 3, 0,
+ // Various Aluminium parts made of Al -> idtmed[1602]
+ AliMedium(3, "Al$", 3, 0,
isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
-
-
+ // 25-aug-04 by PAI : see PMD/AliPMDv0.cxx for STEEL definition -> idtmed[1603]
+ 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
- gMC->Gstpar(idtmed[1600],"CUTGAM",0.00008) ;
- gMC->Gstpar(idtmed[1600],"CUTELE",0.001) ;
- gMC->Gstpar(idtmed[1600],"BCUTE",0.0001) ;
+ 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",0.00001) ;
- gMC->Gstpar(idtmed[1600], "DCUTM",0.00001) ;
-
-// --- and in aluminium parts ---
+ 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",0.00001) ;
- gMC->Gstpar(idtmed[1602], "DCUTM",0.00001) ;
-
+ 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",0.00008) ;
- gMC->Gstpar(idtmed[1601],"CUTELE",0.001) ;
- gMC->Gstpar(idtmed[1601],"BCUTE",0.0001) ;
-
+ 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;
+ fBirkC1 = 0.013/dP;
+ fBirkC2 = 9.6e-6/(dP * dP);
}
-
+
//____________________________________________________________________________
-AliEMCALGeometry * AliEMCAL::GetGeometry() const
-{
- // gets the pointer to the AliEMCALGeometry unique instance
+void AliEMCAL::Digits2Raw()
+{
+ // convert digits of the current event to raw data
+ AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
+
+ // get the digits
+ loader->LoadDigits();
+ TClonesArray* digits = loader->Digits() ;
+
+ if (!digits) {
+ Error("Digits2Raw", "no digits found !");
+ return;
+ }
+
+ // get the digitizer
+ loader->LoadDigitizer();
+ AliEMCALDigitizer * digitizer = dynamic_cast<AliEMCALDigitizer *>(loader->Digitizer()) ;
- return AliEMCALGeometry::GetInstance(GetTitle(),"") ;
+ // get the geometry
+ AliEMCALGeometry* geom = GetGeometry();
+ if (!geom) {
+ Error("Digits2Raw", "no geometry found !");
+ return;
+ }
+ // some digitization constants
+ const Int_t kDDLOffset = 0x800;
+ const Int_t kThreshold = 1;
+ const Int_t kChannelsperDDL = 897 ;
+ 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() < kThreshold)
+ continue;
+ Int_t iDDL = digit->GetId() / kChannelsperDDL ;
+ // for each DDL id is numbered from 1 to kChannelsperDDL -1
+ Int_t idDDL = digit->GetId() - iDDL * ( kChannelsperDDL - 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 + kDDLOffset) ;
+ 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, kThreshold);
+ else
+ buffer->WriteChannel(iDDL, 0, 0,
+ GetRawFormatTimeBins(), adcValuesHigh, kThreshold);
+
+ }
+ }
+
+ // write real header and close last file
+ if (buffer) {
+ buffer->Flush();
+ buffer->WriteDataHeader(kFALSE, kFALSE);
+ delete buffer;
+ }
+
+ loader->UnloadDigits();
}
//____________________________________________________________________________
-void AliEMCAL::SetTreeAddress()
+void AliEMCAL::Hits2SDigits()
{
+// create summable digits
- TBranch *branch;
- char branchname[20];
- sprintf(branchname,"%s",GetName());
+ AliEMCALSDigitizer emcalDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
+ emcalDigitizer.SetEventRange(0, -1) ; // do all the events
+ emcalDigitizer.ExecuteTask() ;
+}
+
+//____________________________________________________________________________
+
+AliLoader* AliEMCAL::MakeLoader(const char* topfoldername)
+{
+//different behaviour than standard (singleton getter)
+// --> to be discussed and made eventually coherent
+ 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] ) ;
- // Branch address for hit tree
- TTree *treeH = gAlice->TreeH();
- if (treeH && fHits) {
- branch = treeH->GetBranch(branchname);
- if (branch) branch->SetAddress(&fHits);
+ 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 ;
}
-//____________________________________________________________________________
-void AliEMCAL::WriteQA()
+//__________________________________________________________________
+Double_t AliEMCAL::RawResponseFunctionMax(Double_t charge, Double_t gain)
{
+ return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
+ / ( fgCapa * TMath::Exp(fgOrder) ) );
- // Make TreeQA in the output file.
-
- if(fTreeQA == 0)
- fTreeQA = new TTree("TreeQA", "QA Alarms") ;
- // Create Alarms branches
-// Int_t bufferSize = 32000 ;
-// Int_t splitlevel = 0 ;
-// TFolder * alarmsF = (TFolder*)gROOT->FindObjectAny("Folders/Run/Conditions/QA/PHOS") ;
-// TString branchName(alarmsF->GetName());
-// TBranch * alarmsBranch = fTreeQA->Branch(branchName,"TFolder", &alarmsF, bufferSize, splitlevel);
-// TString branchTitle = branchName + " QA alarms" ;
-// alarmsBranch->SetTitle(branchTitle);
-// alarmsBranch->Fill() ;
-
- //fTreeQA->Fill() ;
}
+//__________________________________________________________________
+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