* provided "as is" without express or implied warranty. *
**************************************************************************/
/* $Id$ */
+/* History of cvs commits:
+ *
+ * $Log$
+ * Revision 1.93 2005/11/22 08:45:11 kharlov
+ * Calibration is read from CDB if any (Boris Polichtchouk)
+ *
+ * Revision 1.92 2005/11/03 13:09:19 hristov
+ * Removing meaningless const declarations (linuxicc)
+ *
+ * Revision 1.91 2005/07/27 15:08:53 kharlov
+ * Mixture ArCO2 is corrected
+ *
+ * Revision 1.90 2005/06/17 07:39:07 hristov
+ * Removing GetDebug and SetDebug from AliRun and AliModule. Using AliLog for the messages
+ *
+ * Revision 1.89 2005/05/28 12:10:07 schutz
+ * Copy constructor is corrected (by T.P.)
+ *
+ */
//_________________________________________________________________________
// Base Class for PHOS description:
#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 "AliPHOS.h"
-#include "AliPHOSGeometry.h"
-#include "AliPHOSLoader.h"
-#include "AliPHOSQAChecker.h"
+#include "AliPHOSGetter.h"
#include "AliRun.h"
#include "AliPHOSDigitizer.h"
#include "AliPHOSSDigitizer.h"
+#include "AliPHOSDigit.h"
+#include "AliAltroBuffer.h"
+#include "AliLog.h"
+#include "AliCDBManager.h"
+#include "AliCDBEntry.h"
+#include "AliCDBStorage.h"
+#include "AliPHOSCalibData.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";
- fQATask = 0;
- fTreeQA = 0;
+ fName = "PHOS" ;
+
}
//____________________________________________________________________________
-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
+
+ // Check if CDB_PATH is defined and take alignment data from CDB
+ AliPHOSAlignData* alignda = 0;
+ if (gSystem->Getenv("CDB_PATH")) {
+ TString cdbPath = gSystem->Getenv("CDB_PATH");
+ AliCDBStorage *cdbStorage = AliCDBManager::Instance()->GetStorage(cdbPath);
+ if (cdbStorage != NULL) {
+ alignda =
+ (AliPHOSAlignData*)(cdbStorage->Get("PHOS/Alignment/Geometry",0)->GetObject());
+ if(AliLog::GetGlobalDebugLevel()>0) alignda->Print();
+ }
+ else {
+ Fatal("AliPHOS", "No CDB storage at the path %s", cdbPath.Data()) ;
+ }
+ }
- 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 = GetGeometry(alignda)->GetNModules() + 1 ;
+ // offset added to the module id to distinguish high and low gain data
}
//____________________________________________________________________________
AliPHOS::~AliPHOS()
{
+}
+
+//____________________________________________________________________________
+void AliPHOS::Copy(TObject &obj)const
+{
+ // copy method to be used by the cpy ctor
+ TObject::Copy(obj);
+ AliPHOS &phos = static_cast<AliPHOS &>(obj);
+
+ phos.fHighCharge = fHighCharge ;
+ phos.fHighGain = fHighGain ;
+ phos.fHighLowGainFactor = fHighLowGainFactor ;
+ phos.fLowGainOffset = fLowGainOffset;
+}
+
+//____________________________________________________________________________
+AliDigitizer* AliPHOS::CreateDigitizer(AliRunDigitizer* manager) const
+{
+ return new AliPHOSDigitizer(manager);
}
//____________________________________________________________________________
AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ;
- // --- Textolitn ---
+ // --- Textolith ---
Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ;
Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ;
Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ;
AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ;
//--- FR4 ---
- Float_t aFR[3] = {28.0855, 15.9994, 17.749} ;
- Float_t zFR[3] = {14., 8., 8.875} ;
- Float_t wFR[3] = {.28, .32, .4} ;
+ Float_t aFR[4] = {16.0, 28.09, 12.011, 1.00794} ;
+ Float_t zFR[4] = {8.0, 14.0, 6.0, 1.0} ;
+ Float_t wFR[4] = {292.0, 68.0, 462.0, 736.0} ;
Float_t dFR = 1.8 ;
- AliMixture(9, "FR4$", aFR, zFR, dFR, -3, wFR) ;
+ AliMixture(9, "FR4$", aFR, zFR, dFR, -4, wFR) ;
// --- The Composite Material for micromegas (so far polyetylene) ---
Float_t aCM[2] = {12.01, 1.} ;
Float_t dAr = 0.001782 ;
AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ;
- // ArCo2
- Char_t namate[21]="";
- Float_t aGM[2] ;
- Float_t zGM[2] ;
- Float_t wGM[2] ;
- Float_t dGM ;
-
- Float_t absL, radL, density ;
- Float_t buf[1] ;
- Int_t nbuf ;
-
- gMC->Gfmate((*fIdmate)[15], namate, aGM[0], zGM[0], density, radL, absL, buf, nbuf) ; // Get properties of Ar
- gMC->Gfmate((*fIdmate)[14], namate, aGM[1], zGM[1], density, radL, absL, buf, nbuf) ; // Get properties of CO2
-
-
- // Create gas mixture
-
- Float_t arContent = 0.80 ; // Ar-content of the Ar/CO2-mixture (80% / 20%)
-
- wGM[0] = arContent;
- wGM[1] = 1. - arContent ;
- dGM = wGM[0] * dAr + wGM[1] * dCO;
-
- AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ;
+ // Ar+CO2 Mixture (80% / 20%)
+ Float_t arContent = 0.80 ; // Ar-content of the ArCO2-mixture
+ Float_t aArCO[3] = {39.948, 12.0, 16.0} ;
+ Float_t zArCO[3] = {18.0 , 6.0, 8.0} ;
+ Float_t wArCO[3];
+ wArCO[0] = arContent;
+ wArCO[1] = (1-arContent)*1;
+ wArCO[2] = (1-arContent)*2;
+ Float_t dArCO = arContent*dAr + (1-arContent)*dCO ;
+ AliMixture(16, "ArCO2$", aArCO, zArCO, dArCO, -3, wArCO) ;
// --- Stainless steel (let it be pure iron) ---
AliMaterial(17, "Steel$", 55.845, 26, 7.87, 1.76, 0., 0, 0) ;
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]
}
//____________________________________________________________________________
-AliPHOSGeometry * AliPHOS::GetGeometry() const
-{
- // gets the pointer to the AliPHOSGeometry unique instance
+void AliPHOS::Digits2Raw()
+{
+// convert digits of the current event to raw data
- return AliPHOSGeometry::GetInstance(GetTitle(),"") ;
+ AliPHOSLoader * loader = dynamic_cast<AliPHOSLoader*>(fLoader) ;
-}
+ // get the digits
+ loader->LoadDigits();
+ TClonesArray* digits = loader->Digits() ;
-//____________________________________________________________________________
-void AliPHOS::SetTreeAddress()
-{
- // Links Hits in the Tree to Hits array
- TBranch *branch;
- char branchname[20];
- sprintf(branchname,"%s",GetName());
+ if (!digits) {
+ AliError(Form("No digits found !"));
+ return;
+ }
+
+ // get the digitizer
+ loader->LoadDigitizer();
+ AliPHOSDigitizer * digitizer = dynamic_cast<AliPHOSDigitizer *>(loader->Digitizer()) ;
- // Branch address for hit tree
- TTree *treeH = TreeH();
- if (treeH) {
- branch = treeH->GetBranch(branchname);
- if (branch)
- {
- if (fHits == 0x0) fHits= new TClonesArray("AliPHOSHit",1000);
- //Info("SetTreeAddress","<%s> Setting Hits Address",GetName());
- branch->SetAddress(&fHits);
- }
+ // get the geometry
+ AliPHOSGeometry* geom = GetGeometry();
+ if (!geom) {
+ AliError(Form("No geometry found !"));
+ return;
}
-}
-//____________________________________________________________________________
-void AliPHOS::WriteQA()
-{
+ // 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];
- // Make TreeQA in the output file.
+ AliPHOSCalibData* calib=0;
- if(fTreeQA == 0)
- fTreeQA = new TTree("TreeQA", "QA Alarms") ;
- // Create Alarms branches
- Int_t bufferSize = 32000 ;
- Int_t splitlevel = 0 ;
+ //retrieve calibration database
+ if(AliCDBManager::Instance()->IsDefaultStorageSet()){
+ AliCDBEntry *entry = (AliCDBEntry*) AliCDBManager::Instance()->GetDefaultStorage()
+ ->Get("PHOS/GainFactors_and_Pedestals/Calibration",gAlice->GetRunNumber());
+ calib = (AliPHOSCalibData*) entry->GetObject();
+ }
- TFolder* topfold = GetLoader()->GetTopFolder(); //get top aliroot folder; skowron
- TString phosqafn(AliConfig::Instance()->GetQAFolderName()+"/"); //get name of QAaut folder relative to top event; skowron
- phosqafn+=GetName(); //hard wired string!!! add the detector name to the pathname; skowron
- TFolder * alarmsF = (TFolder*)topfold->FindObjectAny(phosqafn); //get the folder
+ // 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];
- if (alarmsF == 0x0)
- {
- Error("WriteQA","Can not find folder with qa alarms");
- return;
- }
- 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() ;
+ // 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 ;
+ Int_t module = relId[0];
+ Int_t column = relId[3];
+ Int_t row = relId[2];
+ if ( digit->GetId() <= geom->GetNModules() * geom->GetNCristalsInModule()) {
+ if(calib)
+ energy = digit->GetAmp()*calib->GetADCchannelEmc(module,column,row) +
+ calib->GetADCpedestalEmc(module,column,row);
+ else
+ energy=digit->GetAmp()*digitizer->GetEMCchannel()+digitizer->GetEMCpedestal();
+ }
+ else
+ energy = digit->GetAmp()*digitizer->GetCPVchannel()+digitizer->GetCPVpedestal();
+
+ Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), energy, adcValuesHigh, adcValuesLow) ;
+
+ if (lowgain)
+ buffer->WriteChannel(relId[3], relId[2], module + fLowGainOffset,
+ GetRawFormatTimeBins(), adcValuesLow, kThreshold);
+ else
+ buffer->WriteChannel(relId[3], relId[2], module,
+ GetRawFormatTimeBins(), adcValuesHigh, kThreshold);
+
+ }
+ }
+
+ // write real header and close last file
+ if (buffer) {
+ buffer->Flush();
+ buffer->WriteDataHeader(kFALSE, kFALSE);
+ delete buffer;
+ }
+
+ loader->UnloadDigits();
+}
+
+//____________________________________________________________________________
+void AliPHOS::Hits2SDigits()
+{
+// create summable digits
+
+ AliPHOSSDigitizer phosDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
+ phosDigitizer.SetEventRange(0, -1) ; // do all the events
+ phosDigitizer.ExecuteTask("all") ;
}
//____________________________________________________________________________
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 ;
+}
-//____________________________________________________________________________
-void AliPHOS::Hits2SDigits()
-{
-// create summable digits
+//__________________________________________________________________
+Double_t AliPHOS::RawResponseFunctionMax(Double_t charge, Double_t gain)
+{
+ return ( charge * TMath::Power(fgOrder, fgOrder) * TMath::Power(gain, fgOrder)
+ / ( fgCapa * TMath::Exp(fgOrder) ) );
- AliPHOSSDigitizer* phosDigitizer =
- new AliPHOSSDigitizer(fLoader->GetRunLoader()->GetFileName().Data());
- phosDigitizer->ExecuteTask("all");
}
-//____________________________________________________________________________
-AliDigitizer* AliPHOS::CreateDigitizer(AliRunDigitizer* manager)
+//__________________________________________________________________
+Bool_t AliPHOS::RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const
{
- return new AliPHOSDigitizer(manager);
+ // 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()
+{
+ // Links Hits in the Tree to Hits array
+ TBranch *branch;
+ char branchname[20];
+ sprintf(branchname,"%s",GetName());
+ // Branch address for hit tree
+ TTree *treeH = TreeH();
+ if (treeH) {
+ branch = treeH->GetBranch(branchname);
+ if (branch)
+ {
+ if (fHits == 0x0) fHits= new TClonesArray("AliPHOSHit",1000);
+ //AliInfo(Form("<%s> Setting Hits Address",GetName()));
+ branch->SetAddress(&fHits);
+ }
+ }
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff