**************************************************************************/
/* $Id$ */
-
+/* History of cvs commits:
+ *
+ * $Log$
+ * Revision 1.48 2006/12/19 02:34:13 pavlinov
+ * clean up the EMCAL name scheme : super module -> module -> tower (or cell)
+ *
+ * Revision 1.47 2006/12/05 17:12:03 gustavo
+ * Updated AliEMCAL::Digits2Raw, reads first provisional RCU mapping files to make Raw data with new AliCaloAltroMapping and AliCaloRawStream
+ *
+ *
+ */
//_________________________________________________________________________
// Base Class for EMCAL description:
// This class contains material definitions
#include "AliEMCALSDigitizer.h"
#include "AliEMCALDigitizer.h"
#include "AliEMCALDigit.h"
+//#include "AliAltroMapping.h"
+#include "AliCaloAltroMapping.h"
#include "AliAltroBuffer.h"
#include "AliRawReader.h"
-#include "AliEMCALRawStream.h"
+#include "AliCaloRawStream.h"
+#include "AliDAQ.h"
ClassImp(AliEMCAL)
Double_t AliEMCAL::fgCapa = 1.; // 1pF
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)
-
+Int_t AliEMCAL::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule
+
//____________________________________________________________________________
-AliEMCAL::AliEMCAL():AliDetector()
+AliEMCAL::AliEMCAL()
+ : AliDetector(),
+ fBirkC0(0),
+ fBirkC1(0.),
+ fBirkC2(0.),
+ fHighCharge(0.),
+ fHighGain(0.),
+ fHighLowGainFactor(0.),
+ fLowGainOffset(0)
{
// Default ctor
fName = "EMCAL" ;
+ Init();
+
}
//____________________________________________________________________________
-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.),
+ fHighCharge(0.),
+ fHighGain(0.),
+ fHighLowGainFactor(0.),
+ fLowGainOffset(0)
{
// ctor : title is used to identify the layout
+ Init();
- 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
}
//____________________________________________________________________________
AliEMCAL::~AliEMCAL()
{
-
+ //dtor
}
//____________________________________________________________________________
-void AliEMCAL::Copy(AliEMCAL & emcal) const
+void AliEMCAL::Init(void)
{
- 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);
+
+ 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
}
//____________________________________________________________________________
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.
+ AliEMCALGeometry* geom = GetGeometry();
+
// --- Air ---
Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
Float_t zAir[4]={6.,7.,8.,18.};
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 ≤ 1);i
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,
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], "LOSS", 3) ;
+ gMC->Gstpar(idtmed[1600], "DRAY", 1) ;
gMC->Gstpar(idtmed[1600], "DCUTE", cutele) ;
gMC->Gstpar(idtmed[1600], "DCUTM", cutele) ;
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], "LOSS",3) ; // generate delta rays
+ gMC->Gstpar(idtmed[1601], "DRAY",1) ;
gMC->Gstpar(idtmed[1601], "DCUTE", cutele) ;
gMC->Gstpar(idtmed[1601], "DCUTM", 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], "LOSS",3);
+ gMC->Gstpar(idtmed[1603], "DRAY",1);
gMC->Gstpar(idtmed[1603], "DCUTE", cutele) ;
gMC->Gstpar(idtmed[1603], "DCUTM", cutele) ;
+ 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()) ;
+ }
+
//set constants for Birk's Law implentation
fBirkC0 = 1;
fBirkC1 = 0.013/dP;
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");
+ 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[fkTimeBins];
- Int_t adcValuesHigh[fkTimeBins];
-
+ 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;
- 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 ) ;
+
+ //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("EMCAL_") ;
- fileName += (iDDL + fgDDLOffset) ;
- fileName += ".ddl" ;
- buffer = new AliAltroBuffer(fileName.Data(), 1);
+ 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() ) {
- buffer->FillBuffer(digit->GetAmp());
+ 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, idDDL, 0, 0); // trailer
-
+ buffer->FillBuffer(3); // bunch length
+ buffer->WriteTrailer(3, ieta, iphi, nSM); // trailer
// calculate the time response function
} else {
- Double_t energy = 0 ;
- energy = digit->GetAmp() * digitizer->GetECAchannel() + digitizer->GetECApedestal() ;
+
+ Double_t 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);
+ buffer->WriteChannel(ieta, iphi, 0, GetRawFormatTimeBins(), adcValuesLow, fgThreshold);
else
- buffer->WriteChannel(iDDL, 0, 0,
- GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
-
+ buffer->WriteChannel(ieta,iphi, 1, GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
+
}
}
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
- GetGeometry();
+ AliEMCALGeometry * geom = GetGeometry();
AliEMCALLoader * loader = dynamic_cast<AliEMCALLoader*>(fLoader) ;
// get the digits
// 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);
+ 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;
Bool_t lowGainFlag = kFALSE ;
-
+ Int_t id = -1;
Int_t idigit = 0 ;
Int_t amp = 0 ;
Double_t time = 0. ;
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 ( 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 ;
}
-
- if (amp > 0) {
- new((*digits)[idigit]) AliEMCALDigit( -1, -1, id, amp, time) ;
- idigit++ ;
+ else {
+ lowGainFlag = kFALSE ;
}
- 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?
+ } //new column-eta
+ }// new row-phi
if (lowGainFlag) {
gLowGain->SetPoint(in.GetTime(),
in.GetTime()* GetRawFormatTimeMax() / GetRawFormatTimeBins(),
}
} // EMCAL entries loop
digits->Sort() ;
-
+
delete signalF ;
delete gLowGain;
delete gHighGain ;
-
+
return ;
}
//__________________________________________________________________
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) ) );