#include <TTree.h>
-#include <TVector.h>
-#include <TObjArray.h>
#include <TFile.h>
#include <TDirectory.h>
#include <TRandom.h>
#include <TArrayI.h>
-#include <TH1.h>
-
+#include <TError.h>
+#include <TH1F.h>
+#include "AliLog.h"
#include "AliSTARTDigitizer.h"
#include "AliSTART.h"
#include "AliSTARThit.h"
-#include "AliSTARThitPhoton.h"
#include "AliSTARTdigit.h"
#include "AliRunDigitizer.h"
-#include "AliHeader.h"
-#include "AliGenEventHeader.h"
+#include <AliDetector.h>
#include "AliRun.h"
-#include "AliPDG.h"
-#include "AliLoader.h"
-#include "AliRunLoader.h"
-#include "AliSTARTLoader.h"
-
+#include <AliLoader.h>
+#include <AliRunLoader.h>
#include <stdlib.h>
#include <Riostream.h>
#include <Riostream.h>
//___________________________________________
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*/)
{
+ /*
+ 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 *ingime, *outgime;// in and out ITSLoaders
+ AliLoader *pInStartLoader, *pOutStartLoader;// in and out STARTLoaders
outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
- outgime = outRL->GetLoader("STARTLoader");
+ pOutStartLoader = outRL->GetLoader("STARTLoader");
+
+ AliDebug(1,"start...");
-#ifdef DEBUG
- cout<<"AliSTARTDigitizer::>SDigits2Digits start...\n";
-#endif
//
// From hits to digits
//
Int_t hit, nhits;
- Int_t CountEr[13],CountEl[13]; //!!!
- Int_t volume,pmt,tr,tl,sumRight;
- Float_t timediff,timeav;
- Float_t besttimeright,besttimeleft,meanTime;
- Int_t bestRightADC,bestLeftADC;
- Float_t besttimeleftGaus, besttimerightGaus;
- Float_t timeright[13]={13*0};
- Float_t timeleft[13]={13*0};
- Float_t channelWidth=2.5; //ps
- Int_t channelWidthADC=1; //ps
- // Int_t thresholdAmpl=10;
-
- ftimeRightTDC = new TArrayI(12);
- ftimeLeftTDC = new TArrayI(12);
- fRightADC = new TArrayI(12);
- fLeftADC = new TArrayI(12);
-
- inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
- inRL->LoadgAlice();
+ 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
- // fHits = new TClonesArray ("AliSTARThit", 1000);
- fPhotons = new TClonesArray ("AliSTARThitPhoton", 10000); //!!!
- AliSTART *START = (AliSTART*) gAlice->GetDetector("START");
AliSTARThit *startHit;
- //use if Cherenkov photons
- // AliSTARThitPhoton *startHitPhoton; //!!!
TBranch *brHits=0;
- TBranch *brHitPhoton=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++) {
+ if (inputFile < nFiles-1) {
+ AliWarning(Form("ignoring input stream %d", inputFile));
+ continue;
+
+ }
- besttimeright=9999.;
- besttimeleft=9999.;
- Int_t timeDiff=0;
- Int_t timeAv=0;
+ Float_t besttimeright=9999.;
+ Float_t besttimeleft=9999.;
+ Float_t timeDiff;
sumRight=0;
- for (Int_t i0=0; i0<13; i0++)
+ for (Int_t i0=0; i0<36; i0++)
{
- timeright[i0]=0; timeleft[i0]=0;
- CountEr[i0]=0; CountEl[i0]=0;
+ time[i0]=9999; besttime[i0]=9999; countE[i0]=0;
}
inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
- ingime = inRL->GetLoader("STARTLoader");
- ingime->LoadHits("READ");//probably it is necessary to load them before
- ingime->LoadDigits("UPDATE");//probably it is necessary to load them before
- //use if Cherenkov photons
- // TClonesArray *STARThitsPhotons = START->Photons ();
- TClonesArray *fHits = START->Hits ();
- // cout<<" Load "<<AliSTARTLoader::LoadDigits()<<endl;
-
- TTree *th = ingime->TreeH();
+ 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 = pInStartLoader->TreeH();
brHits = th->GetBranch("START");
- brHitPhoton = th->GetBranch("STARThitPhoton");
if (brHits) {
- START->SetHitsAddressBranch(brHits,brHitPhoton);
+ 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();
- cout<<" ntracks "<<ntracks<<endl;
+
if (ntracks<=0) return;
- // Start loop on tracks in the photon hits containers
- // for amplitude
- /*
- if(brHitPhoton) {
- cout<<"brHitPhoton "<<endl;
- for (Int_t track=0; track<ntracks;track++) {
- brHitPhoton -> GetEntry(track);;
- nhits = STARThitsPhotons->GetEntriesFast();
- for (hit=0;hit<nhits;hit++) {
- startHitPhoton = (AliSTARThitPhoton*)
- STARThitsPhotons ->UncheckedAt(hit);
- pmt=startHitPhoton->fPmt;
- volume = startHitPhoton->fArray;
- if(RegisterPhotoE(startHitPhoton))
- {
- if (volume == 1) CountEr[pmt]++;
- if (volume == 2) CountEl[pmt]++;
- }
- } //hit photons
- } //track photons
- } // was photons
- */
// Start loop on tracks in the hits containers
for (Int_t track=0; track<ntracks;track++) {
brHits->GetEntry(track);
nhits = fHits->GetEntriesFast();
- // cout<<" brHits hits "<<nhits<<endl;
- for (hit=0;hit<nhits;hit++) {
- startHit = (AliSTARThit*) fHits->UncheckedAt(hit);
- pmt=startHit->fPmt;
- volume = startHit->fVolume;
- if(volume==1){
- timeright[pmt] = startHit->fTime;
- if(timeright[pmt]<besttimeright)
- //&&CountEr[pmt-1]>thresholdAmpl)
- {
- besttimeright=timeright[pmt];
- } //timeright
- }//time for right shoulder
- if(volume==2){
- timeleft[pmt] = startHit->fTime;
- if(timeleft[pmt]<besttimeleft)
- //&&CountEl[pmt-1]>thresholdAmpl)
- {
- besttimeleft=timeleft[pmt];
-
- } //timeleftbest
- }//time for left shoulder
- } //hit loop
+ 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
-
- // z position
- cout<<" right time "<<besttimeright<<
- " right distance "<<besttimeright*30<<endl;;
- cout<<" left time "<<besttimeleft<<
- " left distance "<<besttimeleft*30<<endl;;
-
-
- //folding with experimental time distribution
-
- besttimeleftGaus=gRandom->Gaus(besttimeright,0.05);
- cout<<" besttimeleftGaus "<<besttimeleftGaus<<endl;
- bestLeftADC=Int_t (besttimeleftGaus*1000/channelWidth);
- Float_t koef=69.7/350.;
- besttimeright=koef*besttimeleft;
- besttimerightGaus=gRandom->Gaus(besttimeleft,0.05);
- bestRightADC=Int_t (besttimerightGaus*1000/channelWidth);
- timediff=besttimerightGaus-besttimeleftGaus;
- cout<<" timediff in ns "<<timediff<<" z= "<<timediff*30<<endl;
- meanTime=(besttimerightGaus+besttimeleftGaus)/2.;
- if ( TMath::Abs(timediff)<TMath::Abs(0.3) )
+ //best time right&left
+ for (Int_t ipmt=0; ipmt<12; ipmt++)
{
- Float_t t1=1000.*besttimeleftGaus;
- Float_t t2=1000.*besttimerightGaus;
- t1=t1/channelWidth; //time in ps to channelWidth
- t2=t2/channelWidth; //time in ps to channelWidth
- timeav=(t1+t2)/2.;
-
- // Time to TDC signal
- // 256 channels for timediff, range 1ns
-
- timediff=512+1000*timediff/channelWidth; // time in ps
-
- timeAv = (Int_t)(timeav); // time channel numbres
- timeDiff = (Int_t)(timediff); // time channel numbres
- // fill digits
- fdigits->SetTimeBestLeft(bestLeftADC);
- fdigits->SetTimeBestRight(bestRightADC);
- fdigits->SetMeanTime(timeAv);
- fdigits->SetTimeDiff(timeDiff);
- for (Int_t i=0; i<12; i++)
- {
- // fill TDC
- timeright[i+1]=gRandom->Gaus(timeright[i+1],0.05);
- timeleft[i+1]=gRandom->Gaus(timeleft[i+1],0.05);
- tr= Int_t (timeright[i+1]*1000/channelWidth);
- if(tr<200) tr=0;
- tl= Int_t (timeleft[i+1]*1000/channelWidth);
- if(tl<1000) tl=0;
-
- ftimeRightTDC->AddAt(tr,i);
- ftimeLeftTDC->AddAt(tl,i);
- //fill ADC
- Int_t al=( Int_t ) CountEl[i+1]/ channelWidthADC;
- Int_t ar=( Int_t ) CountEr[i+1]/ channelWidthADC;
- fRightADC->AddAt(ar,i);
- fLeftADC ->AddAt(al,i);
- sumRight+=CountEr[i+1];
- }
- fdigits->SetTimeRight(*ftimeRightTDC);
- fdigits->SetTimeLeft(*ftimeLeftTDC);
- fdigits->SetADCRight(*fRightADC);
- fdigits->SetADCLeft(*fLeftADC);
- // cout<<" before sum"<<endl;
- fdigits->SetSumADCRight(sumRight);
+ timeGaus[ipmt]=gRandom->Gaus(time[ipmt],0.025);
+ if(timeGaus[ipmt]<besttimeleft) besttimeleft=timeGaus[ipmt]; //timeleft
}
- else
- {timeAv=999999; timeDiff=99999;}
-
-// trick to find out output dir:
-
-
-/*
- // trick to find out output dir:
- TTree *outTree = fManager->GetTreeD();
- if (!outTree) {
- cerr<<"something wrong with output...."<<endl;
- exit(111);
- }
-
- Char_t nameDigits[20];
- TDirectory *wd = gDirectory;
- outTree->GetDirectory()->cd();
- fdigits->Write(nameDigits);
- cout<<nameDigits<<endl;
- wd->cd();
-*/
+ // 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 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));
- Char_t nameDigits[20];
- sprintf(nameDigits,"START_D_%d",fManager->GetOutputEventNr());
- fdigits->Write(nameDigits);
+
+ // 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);
+
+ //ADC features
+
+ for (Int_t i=0; i<36; i++)
+ {
- // outgime->WriteDigits("OVERWRITE");
- }
+ // 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(/*AliSTARThitPhoton *hit*/)
+Bool_t AliSTARTDigitizer::RegisterPhotoE(Double_t energy)
{
- Double_t P = 0.2;
- Double_t p;
-
- p = gRandom->Rndm();
- if (p > P)
- return kFALSE;
-
- return kTRUE;
+
+
+ // 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;
}
//----------------------------------------------------------------------------