#include <TTree.h>
-#include <TVector.h>
-#include <TObjArray.h>
#include <TFile.h>
#include <TDirectory.h>
#include <TRandom.h>
+#include <TArrayI.h>
+#include <TError.h>
+#include <TH1F.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 "AliPDG.h"
-
+#include <AliLoader.h>
+#include <AliRunLoader.h>
#include <stdlib.h>
-#include <iostream.h>
-#include <fstream.h>
+#include <Riostream.h>
+#include <Riostream.h>
ClassImp(AliSTARTDigitizer)
//___________________________________________
AliSTARTDigitizer::AliSTARTDigitizer(AliRunDigitizer* manager)
- :AliDigitizer(manager)
+ :AliDigitizer(manager),
+ fSTART(0),
+ fHits(0),
+ fdigits(0),
+ ftimeTDC(0),
+ fADC(0),
+ fEff(0)
{
- cout<<"AliSTARTDigitizer::AliSTARTDigitizer"<<endl;
+ // cout<<"AliSTARTDigitizer::AliSTARTDigitizer"<<endl;
// ctor which should be used
-// fDebug =0;
- // if (GetDebug()>2)
- // cerr<<"AliSTARTDigitizer::AliSTARTDigitizer"
- // <<"(AliRunDigitizer* manager) was processed"<<endl;
+ AliDebug(1,"processed");
+
+ fSTART = 0;
+ fPhotons = 0;
+ fHits = 0;
+ fdigits = 0;
+
+ ftimeTDC = new TArrayI(36);
+ fADC = new TArrayI(36);
+
+ TFile* file = TFile::Open("$ALICE_ROOT/START/PMTefficiency.root");
+ fEff = (TH1F*) file->Get("hEff")->Clone();
+ fEff->SetDirectory(NULL);
+ file->Close();
+ delete file;
}
//------------------------------------------------------------------------
{
// Destructor
+ AliDebug(1,"START");
+ delete ftimeTDC;
+ delete fADC;
+ delete fEff;
}
//------------------------------------------------------------------------
Bool_t AliSTARTDigitizer::Init()
{
// Initialization
- cout<<"AliSTARTDigitizer::Init"<<endl;
+ AliDebug(1," Init");
return kTRUE;
}
//---------------------------------------------------------------------
-void AliSTARTDigitizer::Exec(Option_t* option)
+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)
+
+ */
+
+ AliRunLoader *inRL, *outRL;//in and out Run Loaders
+ AliLoader *pInStartLoader, *pOutStartLoader;// in and out STARTLoaders
+
+ outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
+ pOutStartLoader = outRL->GetLoader("STARTLoader");
+ AliDebug(1,"start...");
-#ifdef DEBUG
- cout<<"AliSTARTDigitizer::>SDigits2Digits start...\n";
-#endif
//
// From hits to digits
//
- Int_t hit;
- Int_t nhits;
- Int_t volume,pmt;
- char nameDigits[20];
- Float_t timediff,timeright,timeleft,timeav;
- Float_t besttimeright,besttimeleft,meanTime;
- Int_t channelWidth=10;
- fHits = new TClonesArray ("AliSTARThit", 1000);
- AliSTART *START = (AliSTART*) gAlice->GetDetector("START");
-
+ Int_t hit, nhits;
+ Float_t meanTime;
+ Int_t countE[36];
+ Int_t volume,pmt,tr,sumRight;
+ Int_t bestRightTDC,bestLeftTDC;
+ Float_t time[36]={36*0};
+ Float_t besttime[36]={36*0};
+ Float_t timeGaus[36]={36*0};
+ Float_t channelWidth=25.; //ps
+
AliSTARThit *startHit;
TBranch *brHits=0;
+
+ pOutStartLoader->LoadDigits("UPDATE");//probably it is necessary to load them before
fdigits= new AliSTARTdigit();
+ pOutStartLoader->GetDigitsDataLoader()->GetBaseLoader(0)->Post(fdigits);
Int_t nFiles=fManager->GetNinputs();
for (Int_t inputFile=0; inputFile<nFiles; inputFile++) {
- sprintf(nameDigits,"START_D_%d",fManager->GetOutputEventNr());
-
- besttimeright=9999.;
- besttimeleft=9999.;
- Int_t timeDiff=0;
- Int_t timeAv=0;
- TClonesArray *STARThits = START->Hits ();
+ if (inputFile < nFiles-1) {
+ AliWarning(Form("ignoring input stream %d", inputFile));
+ continue;
+
+ }
+
+ Float_t besttimeright=9999.;
+ Float_t besttimeleft=9999.;
+ Float_t timeDiff;
+ sumRight=0;
+ for (Int_t i0=0; i0<36; i0++)
+ {
+ time[i0]=9999; besttime[i0]=9999; countE[i0]=0;
+ }
+
+ inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
+ if (!inRL->GetAliRun()) inRL->LoadgAlice();
+ AliSTART *fSTART = (AliSTART*) inRL->GetAliRun()->GetDetector("START");
+ pInStartLoader = inRL->GetLoader("STARTLoader");
+ pInStartLoader->LoadHits("READ");//probably it is necessary to load them before
+ TClonesArray *fHits = fSTART->Hits ();
- TTree *th = fManager->GetInputTreeH(inputFile);
+ TTree *th = pInStartLoader->TreeH();
brHits = th->GetBranch("START");
if (brHits) {
- START->SetHitsAddressBranch(brHits);
+ fSTART->SetHitsAddressBranch(brHits);
}else{
- cerr<<"EXEC Branch START hit not found"<<endl;
+ 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 = STARThits->GetEntriesFast();
- for (hit=0;hit<nhits;hit++) {
- startHit = (AliSTARThit*) STARThits->UncheckedAt(hit);
- pmt=startHit->fPmt;
- volume = startHit->fVolume;
- if(volume==1){
- timeright = startHit->fTime;
- if(timeright<besttimeright) {
- besttimeright=timeright;
- } //timeright
- }//time for right shoulder
- if(volume==2){
- timeleft = startHit->fTime;
- if(timeleft<besttimeleft) {
- besttimeleft=timeleft;
- } //timeleftbest
- }//time for left shoulder
- } //hit loop
+ 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();
+ // cout<<"AliSTARTDigitizer::Exec >> e "<<e<<" time "<< startHit->Time()<<endl;
+ volume = startHit->Volume();
+
+ if(e>0 && RegisterPhotoE(e)) {
+ countE[numpmt]++;
+ besttime[numpmt] = startHit->Time();
+ if(besttime[numpmt]<time[numpmt])
+ {
+ time[numpmt]=besttime[numpmt];
+ }
+ }
+ } //hits loop
} //track loop
-
+
+ //best time right&left
+ for (Int_t ipmt=0; ipmt<12; ipmt++)
+ {
+ timeGaus[ipmt]=gRandom->Gaus(time[ipmt],0.025);
+ if(timeGaus[ipmt]<besttimeleft) besttimeleft=timeGaus[ipmt]; //timeleft
+ }
+ // for ( Int_t ipmt=12; ipmt<36; ipmt++)
+ for ( Int_t ipmt=12; ipmt<36; ipmt++)
+ {
+ timeGaus[ipmt]=gRandom->Gaus(time[ipmt],0.025);
+ if(timeGaus[ipmt]<besttimeright) besttimeright=timeGaus[ipmt]; //timeright
+ }// besttime
+
//folding with experimental time distribution
- Float_t besttimerightGaus=gRandom->Gaus(besttimeright,0.05);
- Float_t koef=69.7/350.;
- besttimeleft=koef*besttimeleft;
- Float_t besttimeleftGaus=gRandom->Gaus(besttimeleft,0.05);
- timediff=besttimerightGaus-besttimeleftGaus;
- meanTime=(besttimerightGaus+besttimeleftGaus)/2.;
- if ( TMath::Abs(timediff)<TMath::Abs(3.) && meanTime<TMath::Abs(5.))
- {
- //we assume centre of bunch is 5ns after TTS signal
- //TOF values are relative of the end of bunch
- Float_t ppBunch=25;
+ Float_t c = 29.9792; // mm/ns
+ Float_t koef=(350.-69.7)/c;
+ Float_t besttimeleftR= besttimeleft;
+ besttimeleft=koef+besttimeleft;
+ bestLeftTDC=Int_t (besttimeleftR*1000/channelWidth);
+ bestRightTDC=Int_t (besttimeright*1000/channelWidth);
+ timeDiff=(c*(besttimeright-besttimeleftR)-(350.-69.7))/(2*c);
+ meanTime=(besttimeright+besttimeleftR)/2.;
+ Float_t ds=(c*(besttimeright-besttimeleftR)-(350.-69.7))/2;
+ AliDebug(2,Form(" timediff in ns %f z= %f real point%f",timeDiff,timeDiff*c,ds));
+
+
+ // Time to TDC signal
+ Int_t iTimeAv=Int_t (meanTime*1000/channelWidth);
+ // time channel numbres
+ // fill digits
+ fdigits->SetTimeBestLeft(bestLeftTDC);
+ fdigits->SetTimeBestRight(bestRightTDC);
+ fdigits->SetMeanTime(iTimeAv);
- ppBunch=ppBunch-10/2;
- Float_t t1=1000.*besttimeleftGaus;
- Float_t t2=1000.*besttimerightGaus;
- t1=t1/channelWidth+ppBunch; //time in ps to channelWidth
- t2=t2/channelWidth+ppBunch; //time in ps to channelWidth
- timeav=(t1+t2)/2.;
-
- // Time to TDC signal
- // 256 channels for timediff, range 1ns
-
- timediff=128+1000*timediff/channelWidth; // time in ps
-
- timeAv = (Int_t)(timeav); // time (ps) channel numbres
- timeDiff = (Int_t)(timediff); // time ( ps) channel numbres
- fdigits->Set(timeAv,timeDiff);
- fdigits->Print();
- }
- else
- {timeAv=999999; timeDiff=99999;}
-
-// trick to find out output dir:
- TTree *outTree = fManager->GetTreeD();
- if (!outTree) {
- cerr<<"something wrong with output...."<<endl;
- exit(111);
- }
- TDirectory *wd = gDirectory;
- outTree->GetDirectory()->cd();
- fdigits->Write(nameDigits);
- wd->cd();
- }
+ //ADC features
+
+ for (Int_t i=0; i<36; i++)
+ {
+
+ // fill TDC
+ tr= Int_t (timeGaus[i]*1000/channelWidth);
+ if(timeGaus[i]>100) tr=0;
+ ftimeTDC->AddAt(tr,i);
+
+ //fill ADC
+ Int_t al= countE[i]; //1024 - channel width shoul be change
+ fADC->AddAt(al,i);
+ } //pmt loop
+ fdigits->SetTime(*ftimeTDC);
+ fdigits->SetADC(*fADC);
+
+ pInStartLoader->UnloadHits();
+
+ } //input streams loop
+
+ pOutStartLoader->WriteDigits("OVERWRITE");
+ pOutStartLoader->UnloadDigits();
}
+//------------------------------------------------------------------------
+Bool_t AliSTARTDigitizer::RegisterPhotoE(Double_t energy)
+{
+
+
+ // Float_t hc=197.326960*1.e6; //mev*nm
+ Double_t hc=1.973*1.e-6; //gev*nm
+ // cout<<"AliSTARTDigitizer::RegisterPhotoE >> energy "<<energy<<endl;
+ Float_t lambda=hc/energy;
+ Int_t bin= fEff->GetXaxis()->FindBin(lambda);
+ Float_t eff=fEff->GetBinContent(bin);
+ Double_t p = gRandom->Rndm();
+ if (p > eff)
+ return kFALSE;
+
+ return kTRUE;
+}
+//----------------------------------------------------------------------------
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff