[u/mrichter/AliRoot.git] / START / AliSTARTDigitizer.cxx


/**************************************************************************
 * 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] ;
  //  Float_t channelWidth=25.; //ps
    //Q->T-> coefficients !!!! should be asked!!!
  Float_t gain[24],timeDelayCFD[24], timeDelayLED[24];
  Int_t threshold =50; //photoelectrons
  Float_t zdetA, zdetC;
  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;
    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)) {
	    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  

    bestLeftTDC=Int_t ((besttimeleft+1000*timeDelayCFD[pmtBestLeft])
		       /channelWidth);
 
    bestRightTDC=Int_t ((besttimeright+1000*timeDelayCFD[pmtBestLeft])
			/channelWidth);
    timeDiff=Int_t (((besttimeleft-besttimeright)+1000*delayVertex)
		    /channelWidth);
    meanTime=Int_t (((besttimeright+1000*timeDelayCFD[pmtBestLeft]+
		      besttimeleft+1000*timeDelayCFD[pmtBestLeft])/2.)
		    /channelWidth);
 
     AliDebug(2,Form(" time in ns %f %f  ",besttimeleft,besttimeright ));
    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/ph2Mip)*50) ;
	}
      } //pmt loop

	if (sumMult > threshold){
	  fSumMult =  Int_t (TMath::Log(sumMult));
	}
    fSTART->AddDigit(bestRightTDC,bestLeftTDC,meanTime,timeDiff,fSumMult,
		     ftimeCFD,fADC,ftimeLED,fADC0);
    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;
}

//----------------------------------------------------------------------------
Commit	Line	Data
ede9aff7	1
	2	/**************************************************************************
	3	* Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
	4	* *
	5	* Author: The ALICE Off-line Project. *
	6	* Contributors are mentioned in the code where appropriate. *
	7	* *
	8	* Permission to use, copy, modify and distribute this software and its *
	9	* documentation strictly for non-commercial purposes is hereby granted *
	10	* without fee, provided that the above copyright notice appears in all *
	11	* copies and that both the copyright notice and this permission notice *
	12	* appear in the supporting documentation. The authors make no claims *
	13	* about the suitability of this software for any purpose. It is *
	14	* provided "as is" without express or implied warranty. *
	15	**************************************************************************/
	16
	17
	18	#include <TTree.h>
ede9aff7	19	#include <TFile.h>
	20	#include <TDirectory.h>
	21	#include <TRandom.h>
e73d68f2	22	#include <TArrayI.h>
2b4678e2	23	#include <TError.h>
e4da63c2	24	#include <TH1F.h>
c848a65b	25	#include <TGraph.h>
ede9aff7	26
e4da63c2	27	#include "AliLog.h"
ede9aff7	28	#include "AliSTARTDigitizer.h"
	29	#include "AliSTART.h"
	30	#include "AliSTARThit.h"
	31	#include "AliSTARTdigit.h"
	32	#include "AliRunDigitizer.h"
affef71b	33	#include <AliDetector.h>
ede9aff7	34	#include "AliRun.h"
affef71b	35	#include <AliLoader.h>
affef71b	36	#include <AliRunLoader.h>
ede9aff7	37	#include <stdlib.h>
ef0750c2	38	#include <Riostream.h>
ef0750c2	39	#include <Riostream.h>
c848a65b	40	#include "AliSTARTParameters.h"
	41	#include "AliCDBLocal.h"
	42	#include "AliCDBStorage.h"
	43	#include "AliCDBManager.h"
	44	#include "AliCDBEntry.h"
ede9aff7	45
	46	ClassImp(AliSTARTDigitizer)
	47
	48	//___________________________________________
	49	AliSTARTDigitizer::AliSTARTDigitizer() :AliDigitizer()
	50	{
	51	// Default ctor - don't use it
	52	;
	53	}
	54
	55	//___________________________________________
	56	AliSTARTDigitizer::AliSTARTDigitizer(AliRunDigitizer* manager)
7a18b6a5	57	:AliDigitizer(manager),
	58	fSTART(0),
	59	fHits(0),
	60	fdigits(0),
c848a65b	61	ftimeCFD(0),
c848a65b	62	ftimeLED(0),
7a18b6a5	63	fADC(0),
c848a65b	64	fADC0(0)
ede9aff7	65	{
ede9aff7	66	// ctor which should be used
e4da63c2	67
	68	AliDebug(1,"processed");
	69
7a18b6a5	70	fSTART = 0;
7a18b6a5	71	fHits = 0;
	72	fdigits = 0;
	73
c848a65b	74	ftimeCFD = new TArrayI(24);
db173afc	75	fADC = new TArrayI(24);
c848a65b	76	ftimeLED = new TArrayI(24);
c848a65b	77	fADC0 = new TArrayI(24);
db173afc	78
174d209f	79
ede9aff7	80	}
	81
	82	//------------------------------------------------------------------------
	83	AliSTARTDigitizer::~AliSTARTDigitizer()
	84	{
	85	// Destructor
e4da63c2	86
7a18b6a5	87	AliDebug(1,"START");
7a18b6a5	88
c848a65b	89	delete ftimeCFD;
e4da63c2	90	delete fADC;
c848a65b	91	delete ftimeLED;
c848a65b	92	delete fADC0;
ede9aff7	93	}
	94
	95	//------------------------------------------------------------------------
	96	Bool_t AliSTARTDigitizer::Init()
	97	{
	98	// Initialization
e4da63c2	99	AliDebug(1," Init");
ede9aff7	100	return kTRUE;
	101	}
	102
	103
	104	//---------------------------------------------------------------------
	105
dc63cec5	106	void AliSTARTDigitizer::Exec(Option_t* /option/)
ede9aff7	107	{
ede9aff7	108
affef71b	109	/*
	110	Produde digits from hits
	111	digits is TObject and includes
	112	We are writing array if left & right TDC
	113	left & right ADC (will need for slow simulation)
	114	TOF first particle left & right
	115	mean time and time difference (vertex position)
	116
	117	*/
88cb7938	118
db173afc	119	//output loader
	120	AliRunLoader *outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
	121	AliLoader * pOutStartLoader = outRL->GetLoader("STARTLoader");
88cb7938	122
e4da63c2	123	AliDebug(1,"start...");
db173afc	124	//input loader
ede9aff7	125	//
	126	// From hits to digits
	127	//
c848a65b	128	Int_t hit, nhits;
	129	Int_t countE[24];
	130	Int_t volume, pmt, trCFD, trLED;
	131	Float_t sl, qt;
4c7da157	132	Int_t bestRightTDC, bestLeftTDC, qtCh;
c848a65b	133	Float_t time[24], besttime[24], timeGaus[24] ;
c848a65b	134	// Float_t channelWidth=25.; //ps
db173afc	135	//Q->T-> coefficients !!!! should be asked!!!
c848a65b	136	Float_t gain[24],timeDelayCFD[24], timeDelayLED[24];
db173afc	137	Int_t threshold =50; //photoelectrons
c848a65b	138	Float_t zdetA, zdetC;
c848a65b	139	TObjArray slewingLED;
7bdc4686	140	TObjArray slewingRec;
c848a65b	141	AliSTARTParameters* param = AliSTARTParameters::Instance();
7bdc4686	142	param->Init();
7bdc4686	143
c848a65b	144	Int_t ph2Mip = param->GetPh2Mip();
c848a65b	145	Int_t channelWidth = param->GetChannelWidth() ;
7bdc4686	146	Float_t delayVertex = param->GetTimeDelayTVD();
c848a65b	147
c848a65b	148	for (Int_t i=0; i<24; i++){
	149	timeDelayCFD[i] = param->GetTimeDelayCFD(i);
	150	timeDelayLED[i] = param->GetTimeDelayLED(i);
	151	gain[i] = param->GetGain(i);
	152	TGraph* gr = param ->GetSlew(i);
	153	slewingLED.AddAtAndExpand(gr,i);
7bdc4686	154
	155	TGraph* gr1 = param ->GetSlewRec(i);
	156	slewingRec.AddAtAndExpand(gr1,i);
	157
c848a65b	158	TGraph* grEff = param ->GetPMTeff(i);
	159	fEffPMT.AddAtAndExpand(grEff,i);
	160	}
	161	zdetC = param->GetZposition(0);
	162	zdetA = param->GetZposition(1);
e73d68f2	163
ede9aff7	164	AliSTARThit *startHit;
ede9aff7	165	TBranch *brHits=0;
c848a65b	166
ede9aff7	167	Int_t nFiles=fManager->GetNinputs();
ede9aff7	168	for (Int_t inputFile=0; inputFile<nFiles; inputFile++) {
6fc133d2	169	if (inputFile < nFiles-1) {
c848a65b	170	AliWarning(Form("ignoring input stream %d", inputFile));
	171	continue;
	172
6fc133d2	173	}
db173afc	174
	175	Float_t besttimeright=99999.;
	176	Float_t besttimeleft=99999.;
c848a65b	177	Int_t pmtBestRight=9999;
c848a65b	178	Int_t pmtBestLeft=9999;
7bdc4686	179	Int_t timeDiff=999, meanTime=0;
c848a65b	180	Int_t sumMult =0;
	181	ftimeCFD -> Reset();
	182	fADC -> Reset();
	183	fADC0 -> Reset();
	184	ftimeLED ->Reset();
db173afc	185	for (Int_t i0=0; i0<24; i0++)
e73d68f2	186	{
40d2047f	187	time[i0]=besttime[i0]=timeGaus[i0]=99999; countE[i0]=0;
e73d68f2	188	}
db173afc	189	AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
db173afc	190	AliLoader * pInStartLoader = inRL->GetLoader("STARTLoader");
6fc133d2	191	if (!inRL->GetAliRun()) inRL->LoadgAlice();
985b3149	192	AliSTART fSTART = (AliSTART)inRL ->GetAliRun()->GetDetector("START");
db173afc	193
db173afc	194	//read Hits
affef71b	195	pInStartLoader->LoadHits("READ");//probably it is necessary to load them before
affef71b	196	TClonesArray *fHits = fSTART->Hits ();
affef71b	197	TTree *th = pInStartLoader->TreeH();
ede9aff7	198	brHits = th->GetBranch("START");
ede9aff7	199	if (brHits) {
e4da63c2	200	fSTART->SetHitsAddressBranch(brHits);
ede9aff7	201	}else{
db173afc	202	AliError("Branch START hit not found");
00907af4	203	exit(111);
ede9aff7	204	}
ede9aff7	205	Int_t ntracks = (Int_t) th->GetEntries();
db173afc	206
e4da63c2	207	if (ntracks<=0) return;
ede9aff7	208	// Start loop on tracks in the hits containers
	209	for (Int_t track=0; track<ntracks;track++) {
	210	brHits->GetEntry(track);
7a68e0ef	211	nhits = fHits->GetEntriesFast();
db173afc	212	for (hit=0;hit<nhits;hit++)
e4da63c2	213	{
	214	startHit = (AliSTARThit*) fHits->UncheckedAt(hit);
	215	if (!startHit) {
	216	AliError("The unchecked hit doesn't exist");
	217	break;
	218	}
	219	pmt=startHit->Pmt();
	220	Int_t numpmt=pmt-1;
db173afc	221	Double_t e=startHit->Etot();
e4da63c2	222	volume = startHit->Volume();
e4da63c2	223
c848a65b	224	if(e>0 && RegisterPhotoE(numpmt,e)) {
db173afc	225	countE[numpmt]++;
	226	besttime[numpmt] = startHit->Time();
	227	if(besttime[numpmt]<time[numpmt])
	228	{
	229	time[numpmt]=besttime[numpmt];
	230	}
c848a65b	231	} //photoelectron accept
e4da63c2	232	} //hits loop
ede9aff7	233	} //track loop
e4da63c2	234
db173afc	235	//spread time right&left by 25ps && besttime
4c7da157	236	Float_t c = 0.0299792; // cm/ps
	237
	238	Float_t koef=(zdetA-zdetC)/c; //correction position difference by cable
db173afc	239	for (Int_t ipmt=0; ipmt<12; ipmt++){
db173afc	240	if(countE[ipmt] > threshold) {
c848a65b	241	timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25)+koef;
	242	if(timeGaus[ipmt]<besttimeleft){
	243	besttimeleft=timeGaus[ipmt]; //timeleft
	244	pmtBestLeft=ipmt;}
e4da63c2	245	}
db173afc	246	}
	247	for ( Int_t ipmt=12; ipmt<24; ipmt++){
	248	if(countE[ipmt] > threshold) {
	249	timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25);
c848a65b	250	if(timeGaus[ipmt]<besttimeright) {
	251	besttimeright=timeGaus[ipmt]; //timeright
	252	pmtBestRight=ipmt;}
db173afc	253	}
db173afc	254	}
c848a65b	255
	256	//folding with alignmentz position distribution
	257
c848a65b	258	bestLeftTDC=Int_t ((besttimeleft+1000*timeDelayCFD[pmtBestLeft])
c848a65b	259	/channelWidth);
4c7da157	260
c848a65b	261	bestRightTDC=Int_t ((besttimeright+1000*timeDelayCFD[pmtBestLeft])
c848a65b	262	/channelWidth);
7bdc4686	263	timeDiff=Int_t (((besttimeleft-besttimeright)+1000*delayVertex)
4c7da157	264	/channelWidth);
c848a65b	265	meanTime=Int_t (((besttimeright+1000*timeDelayCFD[pmtBestLeft]+
	266	besttimeleft+1000*timeDelayCFD[pmtBestLeft])/2.)
	267	/channelWidth);
4c7da157	268
4c7da157	269	AliDebug(2,Form(" time in ns %f %f ",besttimeleft,besttimeright ));
db173afc	270	for (Int_t i=0; i<24; i++)
e73d68f2	271	{
c848a65b	272	Float_t al = countE[i];
c848a65b	273	if (al>threshold && timeGaus[i]<50000 ) {
e4da63c2	274	//fill ADC
db173afc	275	// QTC procedure:
	276	// phe -> mV 0.3; 1MIP ->500phe -> ln (amp (mV)) = 5;
	277	// max 200ns, HIJING mean 50000phe -> 15000mv -> ln = 15 (s zapasom)
	278	// channel 25ps
c848a65b	279	qt= 50.algain[i]/ph2Mip; // 50mv/Mip amp in mV
	280	// fill TDC
	281	trCFD = Int_t (timeGaus[i] + 1000.*timeDelayCFD[i])/channelWidth;
	282	trLED= Int_t (timeGaus[i] + 1000.*timeDelayLED[i]);
	283	sl = ((TGraph*)slewingLED.At(i))->Eval(qt);
	284	trLED = Int_t(( trLED + 1000*sl )/channelWidth);
	285	qtCh=Int_t (1000.*TMath::Log(qt)) / channelWidth;
	286	fADC0->AddAt(0,i);
	287	fADC->AddAt(qtCh,i);
	288	ftimeCFD->AddAt(Int_t (trCFD),i);
	289	ftimeLED->AddAt(trLED,i);
7bdc4686	290	sumMult += Int_t ((al/ph2Mip)*50) ;
db173afc	291	}
e4da63c2	292	} //pmt loop
db173afc	293
c848a65b	294	if (sumMult > threshold){
	295	fSumMult = Int_t (TMath::Log(sumMult));
	296	}
db173afc	297	fSTART->AddDigit(bestRightTDC,bestLeftTDC,meanTime,timeDiff,fSumMult,
c848a65b	298	ftimeCFD,fADC,ftimeLED,fADC0);
db173afc	299	pOutStartLoader->UnloadHits();
6fc133d2	300	} //input streams loop
db173afc	301
	302	//load digits
	303	pOutStartLoader->LoadDigits("UPDATE");
	304	TTree *treeD = pOutStartLoader->TreeD();
	305	if (treeD == 0x0) {
	306	pOutStartLoader->MakeTree("D");
	307	treeD = pOutStartLoader->TreeD();
	308	}
c848a65b	309	treeD->Reset();
	310	fSTART = (AliSTART*)outRL ->GetAliRun()->GetDetector("START");
	311	// Make a branch in the tree
db173afc	312	fSTART->MakeBranch("D");
db173afc	313	treeD->Fill();
db173afc	314
c848a65b	315	pOutStartLoader->WriteDigits("OVERWRITE");
c848a65b	316
c848a65b	317	fSTART->ResetDigits();
	318	pOutStartLoader->UnloadDigits();
	319
ede9aff7	320	}
	321
	322
e73d68f2	323	//------------------------------------------------------------------------
c848a65b	324	Bool_t AliSTARTDigitizer::RegisterPhotoE(Int_t ipmt,Double_t energy)
e73d68f2	325	{
e4da63c2	326
	327
	328	// Float_t hc=197.3269601.e6; //mevnm
2303c85c	329	Double_t hc=1.9731.e-6; //gevnm
2303c85c	330	Float_t lambda=hc/energy;
c848a65b	331	Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
e4da63c2	332	Double_t p = gRandom->Rndm();
c848a65b	333
e4da63c2	334	if (p > eff)
	335	return kFALSE;
	336
	337	return kTRUE;
e73d68f2	338	}
c848a65b	339
7a68e0ef	340	//----------------------------------------------------------------------------