#include <TFolder.h>
#include <TTree.h>
#include <TVirtualMC.h>
+#include <TH1F.h>
+#include <TF1.h>
+#include <TRandom.h>
// --- Standard library ---
// --- AliRoot header files ---
#include "AliMagF.h"
-#include "AliESDtrack.h"
-#include "AliESD.h"
#include "AliPHOS.h"
#include "AliPHOSGetter.h"
-#include "AliPHOSQAChecker.h"
#include "AliRun.h"
#include "AliPHOSDigitizer.h"
#include "AliPHOSSDigitizer.h"
-#include "AliPHOSReconstructioner.h"
+#include "AliPHOSDigit.h"
+#include "AliAltroBuffer.h"
+#include "AliLog.h"
+
ClassImp(AliPHOS)
+
+Double_t AliPHOS::fgCapa = 1.; // 1pF
+Int_t AliPHOS::fgOrder = 2 ;
+Double_t AliPHOS::fgTimeMax = 2.56E-5 ; // each sample is over 100 ns fTimeMax/fTimeBins
+Double_t AliPHOS::fgTimePeak = 4.1E-6 ; // 4 micro seconds
+Double_t AliPHOS::fgTimeTrigger = 100E-9 ; // 100ns, just for a reference
+
+
//____________________________________________________________________________
-AliPHOS:: AliPHOS() : AliDetector()
+ AliPHOS:: AliPHOS() : AliDetector()
{
// Default ctor
- fName="PHOS";
+ fName = "PHOS" ;
fQATask = 0;
fTreeQA = 0;
+ fDebug = 0;
+
}
//____________________________________________________________________________
-AliPHOS::AliPHOS(const char* name, const char* title): AliDetector(name, title)
+AliPHOS::AliPHOS(const char* name, const char* title): AliDetector(name, title)
{
// ctor : title is used to identify the layout
- fQATask = 0;
- fTreeQA = 0;
+ fQATask = 0 ;
+ fTreeQA = 0 ;
+ fDebug = 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 = GetGeometry()->GetNModules() + 1 ;
+ // offset added to the module id to distinguish high and low gain data
}
//____________________________________________________________________________
AliPHOS::~AliPHOS()
{
-
}
//____________________________________________________________________________
void AliPHOS::Copy(AliPHOS & phos)
{
+ // copy method to be used byy the cpy ctor
TObject::Copy(phos) ;
// fQATask = AliPHOSQAChecker::Copy(*(phos.fQATask)) ;
phos.fTreeQA = fTreeQA->CloneTree() ;
wGM[1] = 1. - arContent ;
dGM = wGM[0] * dAr + wGM[1] * dCO;
+
AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ;
// --- Stainless steel (let it be pure iron) ---
AliMixture(19, "Cables $", aCA, zCA, dCA, -4, wCA) ;
-
-
// --- Air ---
- AliMaterial(99, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ;
-
+ 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(99, "Air$", aAir, zAir, dAir, 4, wAir) ;
+
// DEFINITION OF THE TRACKING MEDIA
// for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100]
}
//____________________________________________________________________________
-void AliPHOS::FillESD(AliESD* esd) const
+void AliPHOS::Digits2Raw()
{
- // Called by AliReconstruct after Reconstruct() and global tracking and vertxing
-
- //Creates the tracksegments and Recparticles
- AliPHOSReconstructioner * rec = new AliPHOSReconstructioner((fLoader->GetRunLoader()->GetFileName()).Data()) ;
- TList * taskslist = rec->GetListOfTasks() ;
- Int_t index ;
- TTask * task ;
- TString name ;
- // set clusterizer task inactive
- for (index = 0; index < taskslist->GetSize(); index++) {
- task = dynamic_cast<TTask *>(taskslist->At(index)) ;
- name = task->GetName() ;
- if ( name.Contains(AliConfig::Instance()->GetReconstructionerTaskName()))
- task->SetActive(kFALSE) ;
- if ( name.Contains(AliConfig::Instance()->GetTrackerTaskName()))
- (dynamic_cast<AliPHOSTrackSegmentMaker *> (task))->SetESD(esd) ;
+// convert digits of the current event to raw data
+
+ AliPHOSLoader * loader = dynamic_cast<AliPHOSLoader*>(fLoader) ;
+
+ // get the digits
+ loader->LoadDigits();
+ TClonesArray* digits = loader->Digits() ;
+
+ if (!digits) {
+ Error("Digits2Raw", "no digits found !");
+ return;
}
- rec->SetEventRange(0, -1) ; // do all the events
- rec->ExecuteTask("deb") ;
-
- // Creates AliESDtrack from AliPHOSRecParticles
- AliPHOSGetter *gime = AliPHOSGetter::Instance( (fLoader->GetRunLoader()->GetFileName()).Data() ) ;
- gime->Event(gime->EventNumber(), "P") ;
- TClonesArray *recParticles = gime->RecParticles();
- Int_t nOfRecParticles = recParticles->GetEntries();
- for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) {
- AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart));
- rp->Print();
- AliESDtrack * et = new AliESDtrack() ;
- // fills the ESDtrack
- Double_t xyz[3];
- for (Int_t ixyz=0; ixyz<3; ixyz++) xyz[ixyz] = rp->GetPos()[ixyz];
- et->SetPHOSposition(xyz) ;
- et->SetPHOSsignal (rp->Energy()) ;
- et->SetPHOSpid (rp->GetPID()) ;
- // add the track to the esd object
- esd->AddTrack(et);
- delete et;
+
+ // get the digitizer
+ loader->LoadDigitizer();
+ AliPHOSDigitizer * digitizer = dynamic_cast<AliPHOSDigitizer *>(loader->Digitizer()) ;
+
+ // get the geometry
+ AliPHOSGeometry* geom = GetGeometry();
+ if (!geom) {
+ Error("Digits2Raw", "no geometry found !");
+ return;
+ }
+
+ // some digitization constants
+ const Int_t kDDLOffset = 0x600; // assigned to PHOS
+ const Int_t kThreshold = 1; // skip digits below this threshold
+
+ 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++) {
+ AliPHOSDigit* digit = dynamic_cast<AliPHOSDigit *>(digits->At(iDigit)) ;
+ if (digit->GetAmp() < kThreshold)
+ continue;
+ Int_t relId[4];
+ geom->AbsToRelNumbering(digit->GetId(), relId);
+ Int_t module = relId[0];
+
+ // Begin FIXME
+ if (relId[1] != 0)
+ continue; // ignore digits from CPV
+ // End FIXME
+
+ // PHOS EMCA has 4 DDL per module. Splitting is done based on the row number
+ Int_t iDDL = 4 * (module - 1) + (4 * (relId[2] - 1)) / geom->GetNPhi();
+
+ // 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("PHOS_") ;
+ 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, relId[3], relId[2], module); // trailer
+
+ // calculate the time response function
+ } else {
+ Double_t energy = 0 ;
+ if ( digit->GetId() <= geom->GetNModules() * geom->GetNCristalsInModule())
+ energy = digit->GetAmp() * digitizer->GetEMCchannel() + digitizer->GetEMCpedestal() ;
+ else
+ energy = digit->GetAmp() * digitizer->GetCPVchannel() + digitizer->GetCPVpedestal() ;
+
+ RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
+
+ buffer->WriteChannel(relId[3], relId[2], module,
+ GetRawFormatTimeBins(), adcValuesHigh, kThreshold);
+ buffer->WriteChannel(relId[3], relId[2], module + fLowGainOffset,
+ GetRawFormatTimeBins(), adcValuesLow, kThreshold);
+ }
+ }
+
+ // write real header and close last file
+ if (buffer) {
+ buffer->Flush();
+ buffer->WriteDataHeader(kFALSE, kFALSE);
+ delete buffer;
}
-}
+
+ loader->UnloadDigits();
+}
//____________________________________________________________________________
void AliPHOS::Hits2SDigits()
return fLoader;
}
+//__________________________________________________________________
+Double_t AliPHOS::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 AliPHOS::RawResponseFunctionMax(Double_t charge, Double_t gain)
+{
+ return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
+ / ( fgCapa * TMath::Exp(fgOrder) ) );
+
+}
+
+//__________________________________________________________________
+Bool_t AliPHOS::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 AliPHOS::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 ;
+}
+
//____________________________________________________________________________
void AliPHOS::SetTreeAddress()
{
}
}
-//____________________________________________________________________________
-void AliPHOS::Reconstruct() const
-{
- // method called by AliReconstruction; it should not be called otherwise but the AliPHOSReconstructionner
- // should be called for stand alone reconstruction.
- // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
- // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
- // the global tracking.
-
- AliPHOSReconstructioner * rec = new AliPHOSReconstructioner((fLoader->GetRunLoader()->GetFileName()).Data()) ;
- TList * taskslist = rec->GetListOfTasks() ;
- Int_t index ;
- TTask * task ;
- TString name ;
- // set all tasks inactive except clusterizer
- for (index = 0; index < taskslist->GetSize(); index++) {
- task = dynamic_cast<TTask *>(taskslist->At(index)) ;
- name = task->GetName() ;
- if ( !name.Contains(AliConfig::Instance()->GetReconstructionerTaskName()))
- task->SetActive(kFALSE) ;
- }
- rec->SetEventRange(0, -1) ; // do all the events
- rec->ExecuteTask("deb") ;
-}
-
//____________________________________________________________________________
void AliPHOS::WriteQA()
{
//fTreeQA->Fill() ;
}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff