+++ /dev/null
-
-/**************************************************************************
- * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-
-#include <TTree.h>
-#include <TFile.h>
-#include <TDirectory.h>
-#include <TRandom.h>
-#include <TArrayI.h>
-#include <TError.h>
-#include <TH1F.h>
-#include <TGraph.h>
-
-#include "AliLog.h"
-#include "AliSTARTDigitizer.h"
-#include "AliSTART.h"
-#include "AliSTARThit.h"
-#include "AliSTARTdigit.h"
-#include "AliRunDigitizer.h"
-#include <AliDetector.h>
-#include "AliRun.h"
-#include <AliLoader.h>
-#include <AliRunLoader.h>
-#include <stdlib.h>
-#include <Riostream.h>
-#include <Riostream.h>
-#include "AliSTARTParameters.h"
-#include "AliCDBLocal.h"
-#include "AliCDBStorage.h"
-#include "AliCDBManager.h"
-#include "AliCDBEntry.h"
-
-ClassImp(AliSTARTDigitizer)
-
-//___________________________________________
- AliSTARTDigitizer::AliSTARTDigitizer() :AliDigitizer()
-{
-// Default ctor - don't use it
- ;
-}
-
-//___________________________________________
-AliSTARTDigitizer::AliSTARTDigitizer(AliRunDigitizer* manager)
- :AliDigitizer(manager),
- fSTART(0),
- fHits(0),
- fdigits(0),
- ftimeCFD(0),
- ftimeLED(0),
- fADC(0),
- fADC0(0)
-{
-// ctor which should be used
-
- AliDebug(1,"processed");
-
- fSTART = 0;
- fHits = 0;
- fdigits = 0;
-
- ftimeCFD = new TArrayI(24);
- fADC = new TArrayI(24);
- ftimeLED = new TArrayI(24);
- fADC0 = new TArrayI(24);
-
-
-}
-
-//------------------------------------------------------------------------
-AliSTARTDigitizer::~AliSTARTDigitizer()
-{
-// Destructor
-
- AliDebug(1,"START");
-
- delete ftimeCFD;
- delete fADC;
- delete ftimeLED;
- delete fADC0;
-}
-
- //------------------------------------------------------------------------
-Bool_t AliSTARTDigitizer::Init()
-{
-// Initialization
- AliDebug(1," Init");
- return kTRUE;
-}
-
-
-//---------------------------------------------------------------------
-
-void AliSTARTDigitizer::Exec(Option_t* /*option*/)
-{
-
- /*
- Produde digits from hits
- digits is TObject and includes
- We are writing array if left & right TDC
- left & right ADC (will need for slow simulation)
- TOF first particle left & right
- mean time and time difference (vertex position)
-
- */
-
- //output loader
- AliRunLoader *outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
- AliLoader * pOutStartLoader = outRL->GetLoader("STARTLoader");
-
- AliDebug(1,"start...");
- //input loader
- //
- // From hits to digits
- //
- Int_t hit, nhits;
- Int_t countE[24];
- Int_t volume, pmt, trCFD, trLED;
- Float_t sl, qt;
- Int_t bestRightTDC, bestLeftTDC, qtCh;
- Float_t time[24], besttime[24], timeGaus[24] ;
- //Q->T-> coefficients !!!! should be asked!!!
- Float_t gain[24],timeDelayCFD[24], timeDelayLED[24];
- Int_t threshold =50; //photoelectrons
- Float_t zdetA, zdetC;
- Int_t sumMultCoeff = 100;
- TObjArray slewingLED;
- TObjArray slewingRec;
- AliSTARTParameters* param = AliSTARTParameters::Instance();
- param->Init();
-
- Int_t ph2Mip = param->GetPh2Mip();
- Int_t channelWidth = param->GetChannelWidth() ;
- Float_t delayVertex = param->GetTimeDelayTVD();
- for (Int_t i=0; i<24; i++){
- timeDelayCFD[i] = param->GetTimeDelayCFD(i);
- timeDelayLED[i] = param->GetTimeDelayLED(i);
- gain[i] = param->GetGain(i);
- TGraph* gr = param ->GetSlew(i);
- slewingLED.AddAtAndExpand(gr,i);
-
- TGraph* gr1 = param ->GetSlewRec(i);
- slewingRec.AddAtAndExpand(gr1,i);
-
- TGraph* grEff = param ->GetPMTeff(i);
- fEffPMT.AddAtAndExpand(grEff,i);
- }
- zdetC = param->GetZposition(0);
- zdetA = param->GetZposition(1);
-
- AliSTARThit *startHit;
- TBranch *brHits=0;
-
- Int_t nFiles=fManager->GetNinputs();
- for (Int_t inputFile=0; inputFile<nFiles; inputFile++) {
- if (inputFile < nFiles-1) {
- AliWarning(Form("ignoring input stream %d", inputFile));
- continue;
-
- }
-
- Float_t besttimeright=99999.;
- Float_t besttimeleft=99999.;
- Int_t pmtBestRight=9999;
- Int_t pmtBestLeft=9999;
- Int_t timeDiff=999, meanTime=0;
- Int_t sumMult =0; fSumMult=0;
- bestRightTDC = 99999; bestLeftTDC = 99999;
-
- ftimeCFD -> Reset();
- fADC -> Reset();
- fADC0 -> Reset();
- ftimeLED ->Reset();
- for (Int_t i0=0; i0<24; i0++)
- {
- time[i0]=besttime[i0]=timeGaus[i0]=99999; countE[i0]=0;
- }
- AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
- AliLoader * pInStartLoader = inRL->GetLoader("STARTLoader");
- if (!inRL->GetAliRun()) inRL->LoadgAlice();
- AliSTART *fSTART = (AliSTART*)inRL ->GetAliRun()->GetDetector("START");
-
- //read Hits
- pInStartLoader->LoadHits("READ");//probably it is necessary to load them before
- TClonesArray *fHits = fSTART->Hits ();
- TTree *th = pInStartLoader->TreeH();
- brHits = th->GetBranch("START");
- if (brHits) {
- fSTART->SetHitsAddressBranch(brHits);
- }else{
- AliError("Branch START hit not found");
- exit(111);
- }
- Int_t ntracks = (Int_t) th->GetEntries();
-
- if (ntracks<=0) return;
- // Start loop on tracks in the hits containers
- for (Int_t track=0; track<ntracks;track++) {
- brHits->GetEntry(track);
- nhits = fHits->GetEntriesFast();
- for (hit=0;hit<nhits;hit++)
- {
- startHit = (AliSTARThit*) fHits->UncheckedAt(hit);
- if (!startHit) {
- AliError("The unchecked hit doesn't exist");
- break;
- }
- pmt=startHit->Pmt();
- Int_t numpmt=pmt-1;
- Double_t e=startHit->Etot();
- volume = startHit->Volume();
-
- // if(e>0 && RegisterPhotoE(numpmt,e)) {
- if(e>0 ) {
- countE[numpmt]++;
- besttime[numpmt] = startHit->Time();
- if(besttime[numpmt]<time[numpmt])
- {
- time[numpmt]=besttime[numpmt];
- }
- } //photoelectron accept
- } //hits loop
- } //track loop
-
- //spread time right&left by 25ps && besttime
- Float_t c = 0.0299792; // cm/ps
-
- Float_t koef=(zdetA-zdetC)/c; //correction position difference by cable
- for (Int_t ipmt=0; ipmt<12; ipmt++){
- if(countE[ipmt] > threshold) {
- timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25)+koef;
- if(timeGaus[ipmt]<besttimeleft){
- besttimeleft=timeGaus[ipmt]; //timeleft
- pmtBestLeft=ipmt;}
- }
- }
- for ( Int_t ipmt=12; ipmt<24; ipmt++){
- if(countE[ipmt] > threshold) {
- timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25);
- if(timeGaus[ipmt]<besttimeright) {
- besttimeright=timeGaus[ipmt]; //timeright
- pmtBestRight=ipmt;}
- }
- }
- //folding with alignmentz position distribution
- if( besttimeleft > 10000. && besttimeleft <15000)
- bestLeftTDC=Int_t ((besttimeleft+1000*timeDelayCFD[pmtBestLeft])
- /channelWidth);
-
- if( besttimeright > 10000. && besttimeright <15000)
- bestRightTDC=Int_t ((besttimeright+1000*timeDelayCFD[pmtBestRight])
- /channelWidth);
-
- if (bestRightTDC < 99999 && bestLeftTDC < 99999)
- {
- timeDiff=Int_t (((besttimeleft-besttimeright)+1000*delayVertex)
- /channelWidth);
- meanTime=Int_t (((besttimeright+1000*timeDelayCFD[pmtBestLeft]+
- besttimeleft+1000*timeDelayCFD[pmtBestLeft])/2.)
- /channelWidth);
- }
- AliDebug(10,Form(" time right& left %i %i time diff && mean time in channels %i %i",bestRightTDC,bestLeftTDC, timeDiff, meanTime));
- for (Int_t i=0; i<24; i++)
- {
- Float_t al = countE[i];
- if (al>threshold && timeGaus[i]<50000 ) {
- //fill ADC
- // QTC procedure:
- // phe -> mV 0.3; 1MIP ->500phe -> ln (amp (mV)) = 5;
- // max 200ns, HIJING mean 50000phe -> 15000mv -> ln = 15 (s zapasom)
- // channel 25ps
- qt= 50.*al*gain[i]/ph2Mip; // 50mv/Mip amp in mV
- // fill TDC
- trCFD = Int_t (timeGaus[i] + 1000.*timeDelayCFD[i])/channelWidth;
- trLED= Int_t (timeGaus[i] + 1000.*timeDelayLED[i]);
- sl = ((TGraph*)slewingLED.At(i))->Eval(qt);
- trLED = Int_t(( trLED + 1000*sl )/channelWidth);
- qtCh=Int_t (1000.*TMath::Log(qt)) / channelWidth;
- fADC0->AddAt(0,i);
- fADC->AddAt(qtCh,i);
- ftimeCFD->AddAt(Int_t (trCFD),i);
- ftimeLED->AddAt(trLED,i);
- // sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ;
- sumMult += Int_t (qt/sumMultCoeff) ;
-
- AliDebug(10,Form(" pmt %i : time in ns %f time in channels %i ",
- i, timeGaus[i],trCFD ));
- AliDebug(10,Form(" qt in mV %f qt in ns %f qt in channels %i ",qt,
- TMath::Log(qt), qtCh));
- }
- } //pmt loop
-
- if (sumMult > threshold){
- fSumMult = Int_t (1000.* TMath::Log(Double_t(sumMult) / Double_t(sumMultCoeff))
- /channelWidth);
- AliDebug(10,Form("summult mv %i mult in chammens %i in ps %i ",
- sumMult, fSumMult, fSumMult*channelWidth));
- }
- // if ( besttimeright<99999 || besttimeleft < 99999) {
-
- fSTART->AddDigit(bestRightTDC,bestLeftTDC,meanTime,timeDiff,fSumMult,
- ftimeCFD,fADC,ftimeLED,fADC0);
- // }
-
- AliDebug(10,Form(" Digits wrote bestRightTDC %i bestLeftTDC %i meanTime %i timeDiff %i fSumMult %i ", bestRightTDC,bestLeftTDC,meanTime,timeDiff,fSumMult ));
- pOutStartLoader->UnloadHits();
- } //input streams loop
-
- //load digits
- pOutStartLoader->LoadDigits("UPDATE");
- TTree *treeD = pOutStartLoader->TreeD();
- if (treeD == 0x0) {
- pOutStartLoader->MakeTree("D");
- treeD = pOutStartLoader->TreeD();
- }
- treeD->Reset();
- fSTART = (AliSTART*)outRL ->GetAliRun()->GetDetector("START");
- // Make a branch in the tree
- fSTART->MakeBranch("D");
- treeD->Fill();
-
- pOutStartLoader->WriteDigits("OVERWRITE");
-
- fSTART->ResetDigits();
- pOutStartLoader->UnloadDigits();
-
-}
-
-
-//------------------------------------------------------------------------
-Bool_t AliSTARTDigitizer::RegisterPhotoE(Int_t ipmt,Double_t energy)
-{
-
-
- // Float_t hc=197.326960*1.e6; //mev*nm
- Double_t hc=1.973*1.e-6; //gev*nm
- Float_t lambda=hc/energy;
- Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
- Double_t p = gRandom->Rndm();
-
- if (p > eff)
- return kFALSE;
-
- return kTRUE;
-}
-
-//----------------------------------------------------------------------------
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff