#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 "AliESDCaloTrack.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"
+
ClassImp(AliPHOS)
//____________________________________________________________________________
-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 ;
+ fTimeMax = 1.28E-5 ;
+ fTimePeak = 2.0E-6 ;
+ fTimeRes = 1.5E-6 ;
+ fHighGainFactor = 40;
+ fHighGainOffset = 0x200 ;
}
//____________________________________________________________________________
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()
{
- // Fill the ESD with all RecParticles
- 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++) {
- AliESDCaloTrack *ct = new AliESDCaloTrack((AliPHOSRecParticle*)recParticles->At(recpart));
- esd->AddCaloTrack(ct);
+// convert digits of the current event to raw data
+
+ // get the digits
+ AliPHOSGetter * gime = AliPHOSGetter::Instance(AliRunLoader::GetGAliceName()) ;
+ if (!gime) {
+ Error("Digits2Raw", "PHOS Getter not instantiated") ;
+ return ;
}
-}
+ gime->Event(gime->EventNumber(), "D") ;
+ TClonesArray* digits = gime->Digits() ;
+
+ if (!digits) {
+ Error("Digits2Raw", "no digits found !");
+ return;
+ }
+
+ // get the geometry
+ AliPHOSGeometry* geom = gime->PHOSGeometry();
+ if (!geom) {
+ Error("Digits2Raw", "no geometry found !");
+ return;
+ }
+
+ // some digitization constants
+ const Int_t kDDLOffset = 0x600; // assigned to PHOS
+ const Int_t kThreshold = 3; // 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 = gime->Digit(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() > fTimeMax) {
+ buffer->FillBuffer(digit->GetAmp());
+ buffer->FillBuffer(fkTimeBins); // time bin
+ buffer->FillBuffer(3); // bunch length
+ buffer->WriteTrailer(3, relId[3], relId[2], module); // trailer
+
+ // simulate linear rise and gaussian decay of signal
+ } else {
+ Bool_t highGain = RawSampledResponse(digit->GetTimeR(), digit->GetAmp(), adcValuesHigh, adcValuesLow) ;
+
+
+ // write low and eventually high gain channel
+ buffer->WriteChannel(relId[3], relId[2], module,
+ fkTimeBins, adcValuesLow, kThreshold);
+ if (highGain) {
+ buffer->WriteChannel(relId[3], relId[2], module + fHighGainOffset,
+ fkTimeBins, adcValuesHigh, 1);
+ }
+ }
+ }
+
+ // write real header and close last file
+ if (buffer) {
+ buffer->Flush();
+ buffer->WriteDataHeader(kFALSE, kFALSE);
+ delete buffer;
+ }
+
+ gime->PhosLoader()->UnloadDigits();
+}
//____________________________________________________________________________
void AliPHOS::Hits2SDigits()
return fLoader;
}
+//__________________________________________________________________
+Double_t AliPHOS::RawResponseFunction(Double_t *x, Double_t *par)
+{
+ // Shape of the electronics raw reponse:
+ // 1. the signal rises linearly from par[4] to par[1] to reach the maximu par[3]
+ // 2. the signal decays with a gaussian shape for par[4]+par[1] with a sigma of par[2]
+
+ Float_t xx = x[0] ;
+
+ Double_t signal = 0. ;
+
+ if (xx < par[4] + par[1]) // signal is rising
+ signal = (gRandom->Rndm() + par[3]) * (xx - par[4]) / (par[1] - par[4]) ;
+ else // signal is decaying
+ signal = (gRandom->Rndm() + par[3]) * TMath::Gaus(xx, par[4] + par[1], par[2]) ;
+
+ return signal < 0. ? 0. : signal ;
+}
+
+//__________________________________________________________________
+Bool_t AliPHOS::RawSampledResponse(const Float_t dtime, const Int_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
+
+ const Int_t kRawSignalOverflow = 0x3FF ;
+ Bool_t highGain = kFALSE ;
+
+ TF1 f1("signal", RawResponseFunction, 0, fkTimeBins, 5);
+
+ f1.SetParNames("Time Max", "Peaking time", "Decay width", "Amp max", "Start time") ;
+ f1.SetParameter(0, fTimeMax) ;
+ f1.SetParameter(1, fTimePeak) ;
+ f1.SetParameter(2, fTimeRes) ;
+ f1.SetParameter(3, damp) ;
+ f1.SetParameter(4, dtime) ;
+
+ for (Int_t iTime = 0; iTime < fkTimeBins; iTime++) {
+ Double_t time = iTime * fTimeMax/fkTimeBins;
+ Double_t signal = f1.Eval(time) ;
+ adcL[iTime] = static_cast<Int_t>(signal + 0.5) ;
+ if ( adcL[iTime] > kRawSignalOverflow) // larger than 10 bits
+ adcL[iTime] = kRawSignalOverflow ;
+ adcH[iTime] = static_cast<Int_t>(0.5 + (signal / fHighGainFactor)) ;
+ if (adcH[iTime] > 0)
+ highGain = kTRUE;
+ }
+ return highGain ;
+}
+
//____________________________________________________________________________
void AliPHOS::SetTreeAddress()
{
}
}
-//____________________________________________________________________________
-void AliPHOS::Reconstruct() const
-{
- AliPHOSReconstructioner * rec = new AliPHOSReconstructioner((fLoader->GetRunLoader()->GetFileName()).Data()) ;
- rec->SetEventRange(0, -1) ; // do all the events
- rec->ExecuteTask() ;
-}
-
//____________________________________________________________________________
void AliPHOS::WriteQA()
{
//fTreeQA->Fill() ;
}
+