[u/mrichter/AliRoot.git] / T0 / AliT0Digitizer.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.                  *
 **************************************************************************/

/* $Id$ */

/******************************************************************
 *    Produde digits from hits
 *       digits is TObject and includes
 *	We are writing array if C & A  TDC
 *	C & A  ADC (will need for slow simulation)
 *	TOF first particle C & A
 *	mean time and time difference (vertex position)
 *
 *      Alla.Maevskaya@cern.ch 
 ****************************************************************/


#include <TArrayI.h>
#include <TFile.h>
#include <TGraph.h>
#include <TH1F.h>
#include <TMath.h>
#include <TRandom.h>
#include <TTree.h> 

#include "AliLog.h"
#include "AliT0Digitizer.h"
#include "AliT0.h"
#include "AliT0hit.h"
#include "AliT0digit.h"
#include "AliRunDigitizer.h"
#include "AliRun.h"
#include <AliLoader.h>
#include <AliRunLoader.h>
#include <stdlib.h>
#include "AliT0Parameters.h"

ClassImp(AliT0Digitizer)

//___________________________________________
  AliT0Digitizer::AliT0Digitizer()  :AliDigitizer(),
				     fT0(0),
				     fHits(0),
				     fdigits(0),
				     ftimeCFD(new TArrayI(24)), 
				     ftimeLED (new TArrayI(24)), 
				     fADC(new TArrayI(24)), 
				     fADC0 (new TArrayI(24)),
				     fSumMult(0),
				     fAmpLED(0),
                                     fAmpQTC(0),
				     fParam(0)


{
// Default ctor - don't use it
  ;
}

//___________________________________________
AliT0Digitizer::AliT0Digitizer(AliRunDigitizer* manager) 
  :AliDigitizer(manager),
   fT0(0),
   fHits(0),
   fdigits(0),
   ftimeCFD(new TArrayI(24)), 
   ftimeLED (new TArrayI(24)), 
   fADC(new TArrayI(24)), 
   fADC0 (new TArrayI(24)),
   fSumMult(0),
   fAmpLED(0),
   fAmpQTC(0),
   fParam(0)
{
// ctor which should be used

  AliDebug(1,"processed");
  fParam = AliT0Parameters::Instance();
  fParam->Init();

  for (Int_t i=0; i<24; i++){
    TGraph* gr = fParam ->GetAmpLED(i);
    Int_t np = gr->GetN();
    Double_t *x = gr->GetX();
    Double_t *y = gr->GetY();
    
    Double_t *x1 = new Double_t[np];
    Double_t *y1 = new Double_t[np];
    for (Int_t ii=0; ii<np; ii++) {
      y1[ii]=y[np-ii-1]; 
      x1[ii]=x[np-ii-1];
    }
    
    TGraph *grInverse = new TGraph(np,y1,x1);
    fAmpLED.AddAtAndExpand(grInverse,i);
  }
  for (Int_t i=0; i<24; i++){
    TGraph* grq = fParam ->GetQTC(i);
    Int_t npq = grq->GetN();
    Double_t *xq = grq->GetX();
    Double_t *yq = grq->GetY();
    Double_t *x1q = new Double_t[npq];
    Double_t *y1q = new Double_t[npq];
    for (Int_t ii=1; ii<npq; ii++) {
      y1q[ii]=yq[ii-1]; 
      x1q[ii]=xq[ii-1];
    }
  TGraph *grInverseQTC = new TGraph(npq,y1q,x1q);
  fAmpQTC.AddAtAndExpand(grInverseQTC,i);
  }
}

//------------------------------------------------------------------------
AliT0Digitizer::~AliT0Digitizer()
{
// Destructor

  AliDebug(1,"T0");

  delete ftimeCFD;
  delete fADC;
  delete ftimeLED;
  delete  fADC0;
  //  delete fAmpLED;
}

//------------------------------------------------------------------------
Bool_t AliT0Digitizer::Init()
{
// Initialization
  AliDebug(1," Init");
 return kTRUE;
}
 
//---------------------------------------------------------------------
void AliT0Digitizer::Exec(Option_t* /*option*/)
{

  /*
    Produde digits from hits
        digits is TObject and includes
	We are writing array if C & A  TDC
	C & A  ADC (will need for slow simulation)
	TOF first particle C & A
	mean time and time difference (vertex position)
	
  */

  //output loader 
  AliRunLoader *outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
  AliLoader * pOutStartLoader = outRL->GetLoader("T0Loader");

  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  bestATDC=0;
  Int_t  bestCTDC=0;
  Float_t qtCh=0;
  Float_t time[24], besttime[24], timeGaus[24] ;
  //Q->T-> coefficients !!!! should be asked!!!
  Float_t timeDelayCFD[24];
  Int_t threshold =50; //photoelectrons
  Float_t zdetA, zdetC;
  Int_t sumMultCoeff = 100;
  Int_t refpoint=0;
   
  Int_t ph2Mip = fParam->GetPh2Mip();     
  Float_t channelWidth = fParam->GetChannelWidth() ;  
  Float_t delayVertex = fParam->GetTimeDelayTVD();
   

  zdetC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1"));
  zdetA  = TMath::Abs(fParam->GetZPosition("T0/A/PMT15"));
  
  //  printf(" !!!!!Z det A = %f C = % f",zdetA,zdetC);
  AliT0hit  *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 besttimeC=99999.;
    Float_t besttimeA=99999.;
    Int_t pmtBestC=99999;
    Int_t pmtBestA=99999;
    Int_t timeDiff=99999, meanTime=99999;
    Int_t sumMult =0;   fSumMult=0;
    bestATDC = 99999;  bestCTDC = 99999;
 

    ftimeCFD -> Reset();
    fADC -> Reset();
    fADC0 -> Reset();
    ftimeLED ->Reset();
    for (Int_t i0=0; i0<24; i0++)
      {
	time[i0]=besttime[i0]=timeGaus[i0]=999999; countE[i0]=0;
      }
    AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
    AliLoader * pInStartLoader = inRL->GetLoader("T0Loader");
    if (!inRL->GetAliRun()) inRL->LoadgAlice();
    fT0  = (AliT0*)inRL ->GetAliRun()->GetDetector("T0");

       //read Hits 
    pInStartLoader->LoadHits("READ");//probably it is necessary to load them before
    fHits = fT0->Hits ();
    TTree *th = pInStartLoader->TreeH();
    brHits = th->GetBranch("T0");
    if (brHits) {
      fT0->SetHitsAddressBranch(brHits);
    }else{
      AliWarning("Branch T0 hit not found for this event");
      // fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint,
      //	       ftimeCFD,fADC0,ftimeLED,fADC);
      continue;      
    } 
    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   = (AliT0hit*) 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 ) {
	    countE[numpmt]++;
	    besttime[numpmt] = startHit->Time();
	    if(besttime[numpmt]<time[numpmt])
	      {
		time[numpmt]=besttime[numpmt];
	      }
	  } //photoelectron accept 
	} //hits loop
    } //track loop
    
    //spread time A&C 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]<besttimeC){
	  besttimeC=timeGaus[ipmt]; //timeC
	  pmtBestC=ipmt;}
      }
    }
    for ( Int_t ipmt=12; ipmt<24; ipmt++){
      if(countE[ipmt] > threshold) {
	timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25); 
	if(timeGaus[ipmt]<besttimeA) {
	  besttimeA=timeGaus[ipmt]; //timeA
	  pmtBestA=ipmt;}
      }	
    }

    timeDelayCFD[0] = fParam->GetTimeDelayCFD(0);
 
    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= al/ph2Mip;  // 50mv/Mip amp in mV 
	  //  fill TDC
	  timeDelayCFD[i] = fParam->GetTimeDelayCFD(i);
 	  trCFD = Int_t (timeGaus[i]/channelWidth + timeDelayCFD[i]); 

	  TGraph* gr = ((TGraph*)fAmpLED.At(i));
	  sl = gr->Eval(qt);

	  TGraph* gr1 = ((TGraph*)fAmpQTC.At(i));
	  qtCh = gr1->Eval(qt);
	  fADC0->AddAt(0,i);
	  fADC->AddAt(qtCh,i);
	  //	  sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ;
	  sumMult += Int_t (qtCh/sumMultCoeff)  ;
	 
	  // put slewing 
	  TGraph *fu=(TGraph*) fParam ->GetWalk(i) ;
	  Float_t slew=fu->Eval(Float_t(qtCh));

	  //	  trCFD=trCFD-Int_t(fMaxValue[i]-slew);
	  trCFD = trCFD - slew; //for the same channel as cosmic
	  ftimeCFD->AddAt(Int_t (trCFD),i);
	  trLED = Int_t(trCFD  + sl );
	  ftimeLED->AddAt(trLED,i); 
	  AliDebug(10,Form("  pmt %i : time in ns %f time in channels %i  LEd %i  ",  i, timeGaus[i],trCFD, trLED ));
	  AliDebug(10,Form(" qt in MIP %f led-cfd in  %f qt in channels %f   ",qt, sl, qtCh));

	}
      } //pmt loop

    //folding with alignmentz position distribution  
    if( besttimeC > 10000. && besttimeC <15000)
      bestCTDC=Int_t ((besttimeC+timeDelayCFD[pmtBestC])
			 /channelWidth);
 
    if( besttimeA > 10000. && besttimeA <15000)
      bestATDC=Int_t ((besttimeA+timeDelayCFD[pmtBestA])
			/channelWidth);

    if (bestATDC < 99999 && bestCTDC < 99999)
      {
	timeDiff=Int_t (((besttimeC-besttimeA)+1000*delayVertex)
			/channelWidth);
	meanTime=Int_t (((besttimeC+besttimeA)/2. )/channelWidth);
      }

    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));
    }

    fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint,
		       ftimeCFD,fADC0,ftimeLED,fADC);
     
    
      AliDebug(10,Form(" Digits wrote refpoint %i bestATDC %i bestCTDC %i  meanTime %i  timeDiff %i fSumMult %i ",refpoint ,bestATDC,bestCTDC,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();
    fT0  = (AliT0*)outRL ->GetAliRun()->GetDetector("T0");
    // Make a branch in the tree 
    fT0->MakeBranch("D");
     treeD->Fill();
  
     pOutStartLoader->WriteDigits("OVERWRITE");
     
     fT0->ResetDigits();
     pOutStartLoader->UnloadDigits();
     
}
Commit	Line	Data
dc7ca31d	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
9edefa04	17	/* $Id$ */
dc7ca31d	18
94249139	19	/******************************************************************
	20	* Produde digits from hits
	21	* digits is TObject and includes
	22	* We are writing array if C & A TDC
	23	* C & A ADC (will need for slow simulation)
	24	* TOF first particle C & A
	25	* mean time and time difference (vertex position)
	26	*
	27	* Alla.Maevskaya@cern.ch
	28	****************************************************************/
	29
	30
dc7ca31d	31	#include <TArrayI.h>
9edefa04	32	#include <TFile.h>
dc7ca31d	33	#include <TGraph.h>
9edefa04	34	#include <TH1F.h>
	35	#include <TMath.h>
	36	#include <TRandom.h>
	37	#include <TTree.h>
dc7ca31d	38
	39	#include "AliLog.h"
	40	#include "AliT0Digitizer.h"
	41	#include "AliT0.h"
	42	#include "AliT0hit.h"
	43	#include "AliT0digit.h"
	44	#include "AliRunDigitizer.h"
dc7ca31d	45	#include "AliRun.h"
	46	#include <AliLoader.h>
	47	#include <AliRunLoader.h>
	48	#include <stdlib.h>
dc7ca31d	49	#include "AliT0Parameters.h"
dc7ca31d	50
	51	ClassImp(AliT0Digitizer)
	52
	53	//___________________________________________
c41ceaac	54	AliT0Digitizer::AliT0Digitizer() :AliDigitizer(),
	55	fT0(0),
	56	fHits(0),
	57	fdigits(0),
	58	ftimeCFD(new TArrayI(24)),
	59	ftimeLED (new TArrayI(24)),
	60	fADC(new TArrayI(24)),
	61	fADC0 (new TArrayI(24)),
	62	fSumMult(0),
29d3e0eb	63	fAmpLED(0),
d0bcd1fb	64	fAmpQTC(0),
29d3e0eb	65	fParam(0)
c41ceaac	66
c41ceaac	67
dc7ca31d	68	{
	69	// Default ctor - don't use it
	70	;
	71	}
	72
	73	//___________________________________________
	74	AliT0Digitizer::AliT0Digitizer(AliRunDigitizer* manager)
	75	:AliDigitizer(manager),
	76	fT0(0),
	77	fHits(0),
	78	fdigits(0),
c41ceaac	79	ftimeCFD(new TArrayI(24)),
	80	ftimeLED (new TArrayI(24)),
	81	fADC(new TArrayI(24)),
	82	fADC0 (new TArrayI(24)),
	83	fSumMult(0),
29d3e0eb	84	fAmpLED(0),
d0bcd1fb	85	fAmpQTC(0),
29d3e0eb	86	fParam(0)
dc7ca31d	87	{
	88	// ctor which should be used
	89
	90	AliDebug(1,"processed");
29d3e0eb	91	fParam = AliT0Parameters::Instance();
29d3e0eb	92	fParam->Init();
dc7ca31d	93
29d3e0eb	94	for (Int_t i=0; i<24; i++){
d0bcd1fb	95	TGraph* gr = fParam ->GetAmpLED(i);
29d3e0eb	96	Int_t np = gr->GetN();
	97	Double_t *x = gr->GetX();
	98	Double_t *y = gr->GetY();
d0bcd1fb	99
29d3e0eb	100	Double_t *x1 = new Double_t[np];
	101	Double_t *y1 = new Double_t[np];
	102	for (Int_t ii=0; ii<np; ii++) {
d0bcd1fb	103	y1[ii]=y[np-ii-1];
d0bcd1fb	104	x1[ii]=x[np-ii-1];
29d3e0eb	105	}
	106
	107	TGraph *grInverse = new TGraph(np,y1,x1);
29d3e0eb	108	fAmpLED.AddAtAndExpand(grInverse,i);
29d3e0eb	109	}
d0bcd1fb	110	for (Int_t i=0; i<24; i++){
	111	TGraph* grq = fParam ->GetQTC(i);
	112	Int_t npq = grq->GetN();
	113	Double_t *xq = grq->GetX();
	114	Double_t *yq = grq->GetY();
	115	Double_t *x1q = new Double_t[npq];
	116	Double_t *y1q = new Double_t[npq];
	117	for (Int_t ii=1; ii<npq; ii++) {
	118	y1q[ii]=yq[ii-1];
	119	x1q[ii]=xq[ii-1];
	120	}
	121	TGraph *grInverseQTC = new TGraph(npq,y1q,x1q);
	122	fAmpQTC.AddAtAndExpand(grInverseQTC,i);
	123	}
dc7ca31d	124	}
12e9daf9	125
dc7ca31d	126	//------------------------------------------------------------------------
	127	AliT0Digitizer::~AliT0Digitizer()
	128	{
	129	// Destructor
	130
	131	AliDebug(1,"T0");
	132
	133	delete ftimeCFD;
	134	delete fADC;
	135	delete ftimeLED;
	136	delete fADC0;
29d3e0eb	137	// delete fAmpLED;
dc7ca31d	138	}
dc7ca31d	139
29d3e0eb	140	//------------------------------------------------------------------------
dc7ca31d	141	Bool_t AliT0Digitizer::Init()
	142	{
	143	// Initialization
	144	AliDebug(1," Init");
	145	return kTRUE;
	146	}
	147
dc7ca31d	148	//---------------------------------------------------------------------
dc7ca31d	149	void AliT0Digitizer::Exec(Option_t* /option/)
	150	{
	151
	152	/*
	153	Produde digits from hits
	154	digits is TObject and includes
c41ceaac	155	We are writing array if C & A TDC
	156	C & A ADC (will need for slow simulation)
	157	TOF first particle C & A
dc7ca31d	158	mean time and time difference (vertex position)
	159
	160	*/
	161
	162	//output loader
	163	AliRunLoader *outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
	164	AliLoader * pOutStartLoader = outRL->GetLoader("T0Loader");
	165
	166	AliDebug(1,"start...");
	167	//input loader
	168	//
	169	// From hits to digits
	170	//
74adb36a	171	Int_t hit, nhits;
dc7ca31d	172	Int_t countE[24];
	173	Int_t volume, pmt, trCFD, trLED;
	174	Float_t sl, qt;
af3bb1cc	175	Int_t bestATDC=0;
af3bb1cc	176	Int_t bestCTDC=0;
d0bcd1fb	177	Float_t qtCh=0;
dc7ca31d	178	Float_t time[24], besttime[24], timeGaus[24] ;
74adb36a	179	//Q->T-> coefficients !!!! should be asked!!!
74adb36a	180	Float_t timeDelayCFD[24];
dc7ca31d	181	Int_t threshold =50; //photoelectrons
dc7ca31d	182	Float_t zdetA, zdetC;
74adb36a	183	Int_t sumMultCoeff = 100;
740f0839	184	Int_t refpoint=0;
446d6ec4	185
29d3e0eb	186	Int_t ph2Mip = fParam->GetPh2Mip();
8955c6b4	187	Float_t channelWidth = fParam->GetChannelWidth() ;
29d3e0eb	188	Float_t delayVertex = fParam->GetTimeDelayTVD();
5325480c	189
d0bcd1fb	190
29d3e0eb	191	zdetC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1"));
29d3e0eb	192	zdetA = TMath::Abs(fParam->GetZPosition("T0/A/PMT15"));
74adb36a	193
d0bcd1fb	194	// printf(" !!!!!Z det A = %f C = % f",zdetA,zdetC);
74adb36a	195	AliT0hit *startHit;
	196	TBranch *brHits=0;
	197
dc7ca31d	198	Int_t nFiles=fManager->GetNinputs();
	199	for (Int_t inputFile=0; inputFile<nFiles; inputFile++) {
	200	if (inputFile < nFiles-1) {
74adb36a	201	AliWarning(Form("ignoring input stream %d", inputFile));
	202	continue;
	203
dc7ca31d	204	}
dc7ca31d	205
c41ceaac	206	Float_t besttimeC=99999.;
c41ceaac	207	Float_t besttimeA=99999.;
af3bb1cc	208	Int_t pmtBestC=99999;
	209	Int_t pmtBestA=99999;
	210	Int_t timeDiff=99999, meanTime=99999;
dc7ca31d	211	Int_t sumMult =0; fSumMult=0;
c41ceaac	212	bestATDC = 99999; bestCTDC = 99999;
dc7ca31d	213
c41ceaac	214
dc7ca31d	215	ftimeCFD -> Reset();
	216	fADC -> Reset();
	217	fADC0 -> Reset();
	218	ftimeLED ->Reset();
	219	for (Int_t i0=0; i0<24; i0++)
	220	{
af3bb1cc	221	time[i0]=besttime[i0]=timeGaus[i0]=999999; countE[i0]=0;
dc7ca31d	222	}
	223	AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
	224	AliLoader * pInStartLoader = inRL->GetLoader("T0Loader");
	225	if (!inRL->GetAliRun()) inRL->LoadgAlice();
c2337900	226	fT0 = (AliT0*)inRL ->GetAliRun()->GetDetector("T0");
dc7ca31d	227
	228	//read Hits
	229	pInStartLoader->LoadHits("READ");//probably it is necessary to load them before
955401cc	230	fHits = fT0->Hits ();
dc7ca31d	231	TTree *th = pInStartLoader->TreeH();
	232	brHits = th->GetBranch("T0");
	233	if (brHits) {
	234	fT0->SetHitsAddressBranch(brHits);
	235	}else{
af3bb1cc	236	AliWarning("Branch T0 hit not found for this event");
	237	// fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint,
	238	// ftimeCFD,fADC0,ftimeLED,fADC);
	239	continue;
dc7ca31d	240	}
	241	Int_t ntracks = (Int_t) th->GetEntries();
	242
	243	if (ntracks<=0) return;
	244	// Start loop on tracks in the hits containers
	245	for (Int_t track=0; track<ntracks;track++) {
	246	brHits->GetEntry(track);
	247	nhits = fHits->GetEntriesFast();
	248	for (hit=0;hit<nhits;hit++)
	249	{
	250	startHit = (AliT0hit*) fHits->UncheckedAt(hit);
	251	if (!startHit) {
	252	AliError("The unchecked hit doesn't exist");
	253	break;
	254	}
	255	pmt=startHit->Pmt();
	256	Int_t numpmt=pmt-1;
	257	Double_t e=startHit->Etot();
	258	volume = startHit->Volume();
	259
dc7ca31d	260	if(e>0 ) {
	261	countE[numpmt]++;
	262	besttime[numpmt] = startHit->Time();
	263	if(besttime[numpmt]<time[numpmt])
	264	{
	265	time[numpmt]=besttime[numpmt];
	266	}
	267	} //photoelectron accept
	268	} //hits loop
	269	} //track loop
	270
c41ceaac	271	//spread time A&C by 25ps && besttime
dc7ca31d	272	Float_t c = 0.0299792; // cm/ps
	273
	274	Float_t koef=(zdetA-zdetC)/c; //correction position difference by cable
	275	for (Int_t ipmt=0; ipmt<12; ipmt++){
	276	if(countE[ipmt] > threshold) {
	277	timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25)+koef;
c41ceaac	278	if(timeGaus[ipmt]<besttimeC){
	279	besttimeC=timeGaus[ipmt]; //timeC
	280	pmtBestC=ipmt;}
9a5cba6d	281	}
dc7ca31d	282	}
9a5cba6d	283	for ( Int_t ipmt=12; ipmt<24; ipmt++){
dc7ca31d	284	if(countE[ipmt] > threshold) {
dc7ca31d	285	timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25);
c41ceaac	286	if(timeGaus[ipmt]<besttimeA) {
	287	besttimeA=timeGaus[ipmt]; //timeA
	288	pmtBestA=ipmt;}
dc7ca31d	289	}
dc7ca31d	290	}
dc7ca31d	291
6bfb23c3	292	timeDelayCFD[0] = fParam->GetTimeDelayCFD(0);
446d6ec4	293
dc7ca31d	294	for (Int_t i=0; i<24; i++)
	295	{
	296	Float_t al = countE[i];
	297	if (al>threshold && timeGaus[i]<50000 ) {
	298	//fill ADC
	299	// QTC procedure:
	300	// phe -> mV 0.3; 1MIP ->500phe -> ln (amp (mV)) = 5;
	301	// max 200ns, HIJING mean 50000phe -> 15000mv -> ln = 15 (s zapasom)
	302	// channel 25ps
d0bcd1fb	303	qt= al/ph2Mip; // 50mv/Mip amp in mV
dc7ca31d	304	// fill TDC
29d3e0eb	305	timeDelayCFD[i] = fParam->GetTimeDelayCFD(i);
12e9daf9	306	trCFD = Int_t (timeGaus[i]/channelWidth + timeDelayCFD[i]);
d0bcd1fb	307
29d3e0eb	308	TGraph* gr = ((TGraph*)fAmpLED.At(i));
74adb36a	309	sl = gr->Eval(qt);
29d3e0eb	310
d0bcd1fb	311	TGraph* gr1 = ((TGraph*)fAmpQTC.At(i));
d0bcd1fb	312	qtCh = gr1->Eval(qt);
dc7ca31d	313	fADC0->AddAt(0,i);
dc7ca31d	314	fADC->AddAt(qtCh,i);
dc7ca31d	315	// sumMult += Int_t ((algain[i]/ph2Mip)50) ;
d0bcd1fb	316	sumMult += Int_t (qtCh/sumMultCoeff) ;
dc7ca31d	317
74adb36a	318	// put slewing
29d3e0eb	319	TGraph fu=(TGraph) fParam ->GetWalk(i) ;
74adb36a	320	Float_t slew=fu->Eval(Float_t(qtCh));
12e9daf9	321
446d6ec4	322	// trCFD=trCFD-Int_t(fMaxValue[i]-slew);
d0bcd1fb	323	trCFD = trCFD - slew; //for the same channel as cosmic
74adb36a	324	ftimeCFD->AddAt(Int_t (trCFD),i);
d0bcd1fb	325	trLED = Int_t(trCFD + sl );
d0bcd1fb	326	ftimeLED->AddAt(trLED,i);
446d6ec4	327	AliDebug(10,Form(" pmt %i : time in ns %f time in channels %i LEd %i ", i, timeGaus[i],trCFD, trLED ));
d0bcd1fb	328	AliDebug(10,Form(" qt in MIP %f led-cfd in %f qt in channels %f ",qt, sl, qtCh));
74adb36a	329
dc7ca31d	330	}
	331	} //pmt loop
	332
9a5cba6d	333	//folding with alignmentz position distribution
	334	if( besttimeC > 10000. && besttimeC <15000)
	335	bestCTDC=Int_t ((besttimeC+timeDelayCFD[pmtBestC])
	336	/channelWidth);
	337
	338	if( besttimeA > 10000. && besttimeA <15000)
	339	bestATDC=Int_t ((besttimeA+timeDelayCFD[pmtBestA])
	340	/channelWidth);
	341
	342	if (bestATDC < 99999 && bestCTDC < 99999)
	343	{
	344	timeDiff=Int_t (((besttimeC-besttimeA)+1000*delayVertex)
	345	/channelWidth);
446d6ec4	346	meanTime=Int_t (((besttimeC+besttimeA)/2. )/channelWidth);
9a5cba6d	347	}
9a5cba6d	348
dc7ca31d	349	if (sumMult > threshold){
	350	fSumMult = Int_t (1000.* TMath::Log(Double_t(sumMult) / Double_t(sumMultCoeff))
	351	/channelWidth);
	352	AliDebug(10,Form("summult mv %i mult in chammens %i in ps %i ",
	353	sumMult, fSumMult, fSumMult*channelWidth));
	354	}
dc7ca31d	355
740f0839	356	fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint,
c41ceaac	357	ftimeCFD,fADC0,ftimeLED,fADC);
dc7ca31d	358
740f0839	359
740f0839	360	AliDebug(10,Form(" Digits wrote refpoint %i bestATDC %i bestCTDC %i meanTime %i timeDiff %i fSumMult %i ",refpoint ,bestATDC,bestCTDC,meanTime,timeDiff,fSumMult ));
dc7ca31d	361	pOutStartLoader->UnloadHits();
	362	} //input streams loop
	363
	364	//load digits
	365	pOutStartLoader->LoadDigits("UPDATE");
	366	TTree *treeD = pOutStartLoader->TreeD();
	367	if (treeD == 0x0) {
	368	pOutStartLoader->MakeTree("D");
	369	treeD = pOutStartLoader->TreeD();
	370	}
	371	treeD->Reset();
	372	fT0 = (AliT0*)outRL ->GetAliRun()->GetDetector("T0");
	373	// Make a branch in the tree
	374	fT0->MakeBranch("D");
	375	treeD->Fill();
	376
	377	pOutStartLoader->WriteDigits("OVERWRITE");
	378
	379	fT0->ResetDigits();
	380	pOutStartLoader->UnloadDigits();
	381
	382	}