[u/mrichter/AliRoot.git] / T0 / AliT0Reconstructor.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, 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.                  *
 **************************************************************************/

/* $Id$ */
/*********************************************************************
 *  T0 reconstruction and filling ESD
 *  - reconstruct mean time (interation time) 
 *  - vertex position
 *  -  multiplicity
 ********************************************************************/

#include <AliESDEvent.h>
#include "AliLog.h"
#include "AliT0RecPoint.h"
#include "AliRawReader.h"
#include "AliT0RawReader.h"
#include "AliT0digit.h"
#include "AliT0Reconstructor.h"
#include "AliT0Parameters.h"
#include "AliT0Calibrator.h"

#include <TArrayI.h>
#include <TGraph.h>
#include <TMath.h>
#include <Riostream.h>

ClassImp(AliT0Reconstructor)

  AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
					     fdZonA(0),
					     fdZonC(0),
					     fZposition(0),
					     fParam(NULL),
					     fAmpLEDrec(),
					     fQTC(0),
					     fAmpLED(0),
					     fCalib()
{
  //constructor

 AliDebug(1,"Start reconstructor ");
  
  fParam = AliT0Parameters::Instance();
  fParam->Init();
   TString option = GetOption(); 
 
  for (Int_t i=0; i<24; i++){
        TGraph* gr = fParam ->GetAmpLEDRec(i);
	if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ; 
	  TGraph* gr1 = fParam ->GetAmpLED(i);
	  if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ; 
	  TGraph* gr2 = fParam ->GetQTC(i);
	  if (gr2) fQTC.AddAtAndExpand(gr2,i) ; 
	
  }
  
  fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
  fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
  fCalib = new AliT0Calibrator();

}
//____________________________________________________________________

AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
  AliReconstructor(r),
					     fdZonA(0),
					     fdZonC(0),
					     fZposition(0),
					     fParam(NULL),
                                             fAmpLEDrec(),
					     fQTC(0),
					     fAmpLED(0),
					     fCalib()

 {
  //
  // AliT0Reconstructor copy constructor
  //

  ((AliT0Reconstructor &) r).Copy(*this);

}

//_____________________________________________________________________________
AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
{
  //
  // Assignment operator
  //

  if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
  return *this;

}

//_____________________________________________________________________________

void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
  
{
  // T0 digits reconstruction
  // T0RecPoint writing 
  
   
  TArrayI * timeCFD = new TArrayI(24); 
  TArrayI * timeLED = new TArrayI(24); 
  TArrayI * chargeQT0 = new TArrayI(24); 
  TArrayI * chargeQT1 = new TArrayI(24); 


  //  Int_t mV2Mip = param->GetmV2Mip();     
  //mV2Mip = param->GetmV2Mip();     
  Float_t channelWidth = fParam->GetChannelWidth() ;  
  //  Int_t meanT0 = fParam->GetMeanT0();
  
  AliDebug(1,Form("Start DIGITS reconstruction "));
  

 TBranch *brDigits=digitsTree->GetBranch("T0");
  AliT0digit *fDigits = new AliT0digit() ;
  if (brDigits) {
    brDigits->SetAddress(&fDigits);
  }else{
    AliError(Form("EXEC Branch T0 digits not found"));
     return;
  }
  
  digitsTree->GetEvent(0);
  digitsTree->GetEntry(0);
  brDigits->GetEntry(0);
  fDigits->GetTimeCFD(*timeCFD);
  fDigits->GetTimeLED(*timeLED);
  fDigits->GetQT0(*chargeQT0);
  fDigits->GetQT1(*chargeQT1);
  Int_t onlineMean =  fDigits->MeanTime();

  
  Float_t besttimeA=999999;
  Float_t besttimeC=999999;
  Int_t pmtBestA=99999;
  Int_t pmtBestC=99999;
  Float_t timeDiff=999999, meanTime=0;
  
  Int_t mv2MIP = fParam-> GetmV2Mip();     


  AliT0RecPoint* frecpoints= new AliT0RecPoint ();
  clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
  
 Float_t time[24], adc[24];
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
    if(timeCFD->At(ipmt)>0 ){
      Double_t qt0 = Double_t(chargeQT0->At(ipmt));
      Double_t qt1 = Double_t(chargeQT1->At(ipmt));
      if((qt1-qt0)>0)  adc[ipmt] = Int_t (TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000)));

      time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(qt1) , timeCFD->At(ipmt), "pdc" ) ;
     
      //LED
      Float_t ampLED;    //LED
      Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
      if( adc[ipmt]/Float_t(mv2MIP) < 20) 
	{
	  Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
	  ampLED = qt/Float_t(mv2MIP);
	  AliDebug(1,Form(" ipmt %i QTC %f ch QTC in MIP %f, time in chann %f (led-cfd) %f in MIPs %f",
			  ipmt, adc[ipmt], adc[ipmt]/Float_t(mv2MIP), time[ipmt],sl,ampLED ));
	}
      else
	{ AliDebug(1,Form(" amplitude %f MIPs on PMT %i, write QTC in both ", (adc[ipmt]/Float_t(mv2MIP)), ipmt));
	  ampLED=adc[ipmt]/Float_t(mv2MIP);}
      frecpoints->SetTime(ipmt,time[ipmt]);
      frecpoints->SetAmp(ipmt,adc[ipmt]/Float_t(mv2MIP));
      frecpoints->SetAmpLED(ipmt,ampLED);
    }
    else {
      time[ipmt] = 0;
      adc[ipmt] = 0;
    }
  }
  
  for (Int_t ipmt=0; ipmt<12; ipmt++){
    if(time[ipmt] > 1 ) {
      if(time[ipmt]<besttimeC){
	besttimeC=time[ipmt]; //timeC
	pmtBestC=ipmt;
      }
    }
  }
  for ( Int_t ipmt=12; ipmt<24; ipmt++){
    if(time[ipmt] > 1) {
      if(time[ipmt]<besttimeA) {
	besttimeA=time[ipmt]; //timeA
        pmtBestA=ipmt;}
    }
  }
  if(besttimeA !=999999)  frecpoints->SetTimeBestA(Int_t(besttimeA));
  if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
  AliDebug(1,Form(" besttimeA %f ch,  besttimeC %f ch",besttimeA, besttimeC));
  Float_t c = 0.0299792; // cm/ps
  Float_t vertex = 0;
  if(besttimeA !=999999 && besttimeC != 999999 ){
    timeDiff = (besttimeC - besttimeA)*channelWidth;
    meanTime = (Float_t((besttimeA + besttimeC -4000)/2) * channelWidth); 
    //    meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
    vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
    frecpoints->SetVertex(vertex);
    frecpoints->SetMeanTime(Int_t(meanTime));
    //online mean
    frecpoints->SetOnlineMean(Int_t(onlineMean * channelWidth));
    AliDebug(1,Form("  timeDiff %f ps,  meanTime %f ps, vertex %f cm online mean %i ps",timeDiff, meanTime,vertex, Int_t(onlineMean * channelWidth )));
    
  }
 
  //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
  /*  
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
    if(time[ipmt]>1) {
      //      time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
      time[ipmt] =Int_t  ( Float_t(time[ipmt]) * channelWidth);
      frecpoints->SetTime(ipmt,time[ipmt]);
    }
  }
*/
  clustersTree->Fill();

  delete timeCFD;
  delete timeLED;
  delete chargeQT0; 
  delete chargeQT1; 
}


//_______________________________________________________________________

void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
{
  // T0 raw ->
  // T0RecPoint writing 
  
  //Q->T-> coefficients !!!! should be measured!!!
  Int_t allData[110][5];
  
  Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
  TString option = GetOption(); 
   AliDebug(10,Form("Option: %s\n", option.Data()));
   
   for (Int_t i0=0; i0<105; i0++)
     {
       for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0; 	
     }
   
   Float_t besttimeA=9999999;
   Float_t besttimeC=9999999;
   Int_t pmtBestA=99999;
   Int_t pmtBestC=99999;
   Float_t timeDiff=9999999, meanTime=0;
   Double_t qt=0;
    Int_t mv2MIP = fParam-> GetmV2Mip();     
 
   AliT0RecPoint* frecpoints= new AliT0RecPoint ();
   
   recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
   
   
   AliDebug(10," before read data ");
   AliT0RawReader myrawreader(rawReader);
   if (!myrawreader.Next())
     AliDebug(1,Form(" no raw data found!!"));
   else
     {  
       for (Int_t i=0; i<105; i++) {
	 for (Int_t iHit=0; iHit<5; iHit++) 
	   {
	     allData[i][iHit] = myrawreader.GetData(i,iHit);
	   }
       }
       
       Float_t channelWidth = fParam->GetChannelWidth() ;  
       
       //       Int_t meanT0 = fParam->GetMeanT0();
       if(option == "pdc"){
	 for (Int_t in=0; in<24; in++)  
	   {
	     
	     timeLED[in] = allData[in+1][0] ;
	     timeCFD[in] = allData[in+25][0] ;
	     chargeQT1[in] = allData[in+57][0] ;
	     chargeQT0[in] = allData[in+81][0] ;
	   }
       }
       
       if(option == "cosmic") {
	 for (Int_t in=0; in<12; in++)  
	   {
	     timeCFD[in] = allData[in+1][0] ;
	     timeCFD[in+12] = allData[in+56+1][0] ;
	     timeLED[in] = allData[in+12+1][0] ;
	     timeLED[in+12] = allData[in+68+1][0] ;
	   }
	 
	 for (Int_t in=0; in<12;  in++)
	   {
	     chargeQT1[in]=allData[2*in+25][0];
	     chargeQT0[in]=allData[2*in+26][0];
	   }

	 for (Int_t in=12; in<24;  in++)
	   {
	     chargeQT1[in]=allData[2*in+57][0];
	     chargeQT0[in]=allData[2*in+58][0];
	   }
	 
       }
       for (Int_t in=0; in<24; in++)  
	 AliDebug(10, Form(" readed Raw %i %i %i %i %i",
			   in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in]));
       Int_t onlineMean = allData[49][0];       
       
       Float_t time[24], adc[24];
       for (Int_t ipmt=0; ipmt<24; ipmt++) {
	 if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){
	   
	   if(option == "pdc"){
	     Double_t qt0 = Double_t(chargeQT0[ipmt]);
	     Double_t qt1 = Double_t(chargeQT1[ipmt]);
	     if((qt1-qt0)>0)  adc[ipmt] = Int_t(TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000.)));
	     time[ipmt] = fCalib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD[ipmt], "pdc" ) ;
	     Double_t sl = (timeLED[ipmt] - time[ipmt])*channelWidth;
	     printf(" amplitude %f %f\n",adc[ipmt]/Float_t(mv2MIP), sl);
	     //pp collison
	     if( adc[ipmt]/Float_t(mv2MIP) < 20) 
	       {
		 if(fAmpLEDrec.At(ipmt)) 
		   qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
	       }
	     else //PbPb
	       { AliDebug(1,Form(" amplitude %f MIPs on PMT %i, write QTC in both ", (adc[ipmt]/Float_t(mv2MIP)), ipmt));
		 qt=adc[ipmt]/Float_t(mv2MIP);}
	     
	     frecpoints->SetTime(ipmt,time[ipmt]);
	     frecpoints->SetAmp(ipmt,adc[ipmt]/Float_t(mv2MIP));
	     frecpoints->SetAmpLED(ipmt,qt/Float_t(mv2MIP));
	     AliDebug(10,Form(" QTC %f mv,  time in chann %f ampLED %f",adc[ipmt] ,time[ipmt], qt));
	     AliDebug(10,Form("  Amlitude in MIPS LED %f ,  QTC %f \n ", adc[ipmt]/Float_t(mv2MIP),qt/Float_t(mv2MIP)));
	   }
	   if(option == "cosmic") {
	     if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0)  
	       adc[ipmt] = chargeQT1[ipmt] - chargeQT0[ipmt];
	     else
	       adc[ipmt] = 0;
	     //      time[ipmt] = fCalib-> WalkCorrection( ipmt, adc[ipmt], timeCFD[ipmt],"cosmic" ) ;

	     Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
	     time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt],"cosmic" ) ;
	     time[ipmt] = time[ipmt] - allData[0][0] + 5000;
	     AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
			      ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
	     Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl);
	     Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
	     AliDebug(10,Form("  Amlitude in MIPS LED %f ,  QTC %f \n ",ampMip,qtMip));

	     frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
	     frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam 
	     frecpoints->SetAmpLED(ipmt, Float_t(qtMip));


	   }
	   
	 }
	 else {
	   time[ipmt] = 0;
	   adc[ipmt] = 0;
	 }
       }
       
       for (Int_t ipmt=0; ipmt<12; ipmt++){
	 if(time[ipmt] > 1 ) {
	   if(time[ipmt]<besttimeC){
	     besttimeC=time[ipmt]; //timeC
	     pmtBestC=ipmt;
	   }
	 }
       }
       for ( Int_t ipmt=12; ipmt<24; ipmt++){
	 if(time[ipmt] > 1) {
	   if(time[ipmt]<besttimeA) {
	     besttimeA=time[ipmt]; //timeA
	     pmtBestA=ipmt;}
	 }
       }
       if(besttimeA !=9999999)  frecpoints->SetTimeBestA(Int_t(besttimeA));
       if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
       AliDebug(1,Form(" besttimeA %f ps,  besttimeC %f ps",besttimeA, besttimeC));
       Float_t c = 0.0299792; // cm/ps
       Float_t vertex = 99999;
       if(besttimeA <9999999 && besttimeC < 9999999 ){
	 timeDiff = ( besttimeC - besttimeA) *channelWidth;
	 if(option == "pdc"){ 
	   //	   meanTime = (besttimeA + besttimeC)/2 * channelWidth; 
	   meanTime = (besttimeA + besttimeC-4000.)/2 * channelWidth; 
	   onlineMean = Int_t (onlineMean * channelWidth);
	 }
	 if(option == "cosmic") {
	   meanTime =  Float_t((besttimeA + besttimeC)/2);  
	   onlineMean = onlineMean -allData[0][0];;
	 }
	 vertex = c*(timeDiff)/2.+ (fdZonA - fdZonC)/2; 
	 frecpoints->SetVertex(vertex);
	 frecpoints->SetMeanTime(Int_t(meanTime));
	 AliDebug(1,Form("  timeDiff %f ps,  meanTime %f ps, vertex %f cm online mean %i ",timeDiff, meanTime,vertex, onlineMean));
	 
       }
     } // if (else )raw data
   recTree->Fill();
   if(frecpoints) delete frecpoints;
}
//____________________________________________________________

void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
{

  /***************************************************
  Resonstruct digits to vertex position
  ****************************************************/
  
  AliDebug(1,Form("Start FillESD T0"));

  TTree *treeR = clustersTree;
  
   AliT0RecPoint* frecpoints= new AliT0RecPoint ();
    if (!frecpoints) {
    AliError("Reconstruct Fill ESD >> no recpoints found");
    return;
  }
  
  AliDebug(1,Form("Start FillESD T0"));
  TBranch *brRec = treeR->GetBranch("T0");
  if (brRec) {
    brRec->SetAddress(&frecpoints);
  }else{
    AliError(Form("EXEC Branch T0 rec not found"));
    return;
  } 
    
    brRec->GetEntry(0);
    Float_t amp[24], time[24];
    Float_t  zPosition = frecpoints -> GetVertex();
    Float_t timeStart = frecpoints -> GetMeanTime() ;
    for ( Int_t i=0; i<24; i++) {
      time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
      amp[i] = frecpoints -> GetAmp(i);
    }
    pESD->SetT0zVertex(zPosition); //vertex Z position 
    pESD->SetT0(timeStart);        // interaction time 
    pESD->SetT0time(time);         // best TOF on each PMT 
    pESD->SetT0amplitude(amp);     // number of particles(MIPs) on each PMT
 
    AliDebug(1,Form(" Z position %f cm,  T0  %f ps",zPosition , timeStart));

} // vertex in 3 sigma
Commit	Line	Data
dc7ca31d	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	/* $Id$ */
72e48d95	17	/*********************************************************************
	18	* T0 reconstruction and filling ESD
	19	* - reconstruct mean time (interation time)
	20	* - vertex position
	21	* - multiplicity
	22	********************************************************************/
dc7ca31d	23
af885e0f	24	#include <AliESDEvent.h>
dc7ca31d	25	#include "AliLog.h"
dc7ca31d	26	#include "AliT0RecPoint.h"
	27	#include "AliRawReader.h"
	28	#include "AliT0RawReader.h"
dc7ca31d	29	#include "AliT0digit.h"
	30	#include "AliT0Reconstructor.h"
	31	#include "AliT0Parameters.h"
c41ceaac	32	#include "AliT0Calibrator.h"
dc7ca31d	33
	34	#include <TArrayI.h>
	35	#include <TGraph.h>
aad72f45	36	#include <TMath.h>
b09247a2	37	#include <Riostream.h>
dc7ca31d	38
	39	ClassImp(AliT0Reconstructor)
	40
c41ceaac	41	AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
f16935f7	42	fdZonA(0),
	43	fdZonC(0),
	44	fZposition(0),
	45	fParam(NULL),
2e6a5ee0	46	fAmpLEDrec(),
c883fdf2	47	fQTC(0),
c883fdf2	48	fAmpLED(0),
2e6a5ee0	49	fCalib()
e0bba6cc	50	{
72e48d95	51	//constructor
72e48d95	52
c41ceaac	53	AliDebug(1,"Start reconstructor ");
74adb36a	54
	55	fParam = AliT0Parameters::Instance();
	56	fParam->Init();
c883fdf2	57	TString option = GetOption();
c883fdf2	58
74adb36a	59	for (Int_t i=0; i<24; i++){
2e6a5ee0	60	TGraph* gr = fParam ->GetAmpLEDRec(i);
29ed1d0e	61	if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ;
c883fdf2	62	TGraph* gr1 = fParam ->GetAmpLED(i);
	63	if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ;
	64	TGraph* gr2 = fParam ->GetQTC(i);
	65	if (gr2) fQTC.AddAtAndExpand(gr2,i) ;
	66
	67	}
29ed1d0e	68
f16935f7	69	fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
f16935f7	70	fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
12e9daf9	71	fCalib = new AliT0Calibrator();
12e9daf9	72
c41ceaac	73	}
c41ceaac	74	//____________________________________________________________________
e0bba6cc	75
c41ceaac	76	AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
d76c31f4	77	AliReconstructor(r),
f16935f7	78	fdZonA(0),
	79	fdZonC(0),
	80	fZposition(0),
	81	fParam(NULL),
2e6a5ee0	82	fAmpLEDrec(),
c883fdf2	83	fQTC(0),
c883fdf2	84	fAmpLED(0),
2e6a5ee0	85	fCalib()
2e6a5ee0	86
f16935f7	87	{
c41ceaac	88	//
	89	// AliT0Reconstructor copy constructor
	90	//
e0bba6cc	91
c41ceaac	92	((AliT0Reconstructor &) r).Copy(*this);
e0bba6cc	93
	94	}
	95
c41ceaac	96	//_____________________________________________________________________________
c41ceaac	97	AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
dc7ca31d	98	{
c41ceaac	99	//
	100	// Assignment operator
	101	//
	102
	103	if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
	104	return *this;
e0bba6cc	105
dc7ca31d	106	}
c41ceaac	107
	108	//_____________________________________________________________________________
	109
dc7ca31d	110	void AliT0Reconstructor::Reconstruct(TTreedigitsTree, TTreeclustersTree) const
94c27e4f	111
dc7ca31d	112	{
94c27e4f	113	// T0 digits reconstruction
94c27e4f	114	// T0RecPoint writing
c41ceaac	115
74adb36a	116
c41ceaac	117	TArrayI * timeCFD = new TArrayI(24);
	118	TArrayI * timeLED = new TArrayI(24);
	119	TArrayI * chargeQT0 = new TArrayI(24);
	120	TArrayI * chargeQT1 = new TArrayI(24);
74adb36a	121
dc7ca31d	122
94c27e4f	123	// Int_t mV2Mip = param->GetmV2Mip();
dc7ca31d	124	//mV2Mip = param->GetmV2Mip();
8955c6b4	125	Float_t channelWidth = fParam->GetChannelWidth() ;
12e9daf9	126	// Int_t meanT0 = fParam->GetMeanT0();
94c27e4f	127
dc7ca31d	128	AliDebug(1,Form("Start DIGITS reconstruction "));
94c27e4f	129
2e6a5ee0	130
2e6a5ee0	131	TBranch *brDigits=digitsTree->GetBranch("T0");
e0bba6cc	132	AliT0digit *fDigits = new AliT0digit() ;
dc7ca31d	133	if (brDigits) {
	134	brDigits->SetAddress(&fDigits);
	135	}else{
f16935f7	136	AliError(Form("EXEC Branch T0 digits not found"));
f16935f7	137	return;
dc7ca31d	138	}
e0bba6cc	139
c41ceaac	140	digitsTree->GetEvent(0);
	141	digitsTree->GetEntry(0);
	142	brDigits->GetEntry(0);
	143	fDigits->GetTimeCFD(*timeCFD);
	144	fDigits->GetTimeLED(*timeLED);
	145	fDigits->GetQT0(*chargeQT0);
	146	fDigits->GetQT1(*chargeQT1);
446d6ec4	147	Int_t onlineMean = fDigits->MeanTime();
c883fdf2	148
c41ceaac	149
	150	Float_t besttimeA=999999;
	151	Float_t besttimeC=999999;
	152	Int_t pmtBestA=99999;
	153	Int_t pmtBestC=99999;
dc7ca31d	154	Float_t timeDiff=999999, meanTime=0;
dc7ca31d	155
c883fdf2	156	Int_t mv2MIP = fParam-> GetmV2Mip();
c883fdf2	157
e0bba6cc	158
94c27e4f	159	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
	160	clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
	161
12e9daf9	162	Float_t time[24], adc[24];
dc7ca31d	163	for (Int_t ipmt=0; ipmt<24; ipmt++) {
c41ceaac	164	if(timeCFD->At(ipmt)>0 ){
29d3e0eb	165	Double_t qt0 = Double_t(chargeQT0->At(ipmt));
29d3e0eb	166	Double_t qt1 = Double_t(chargeQT1->At(ipmt));
12e9daf9	167	if((qt1-qt0)>0) adc[ipmt] = Int_t (TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000)));
12e9daf9	168
2e6a5ee0	169	time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(qt1) , timeCFD->At(ipmt), "pdc" ) ;
c883fdf2	170
c41ceaac	171	//LED
a7027400	172	Float_t ampLED; //LED
29d3e0eb	173	Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
a7027400	174	if( adc[ipmt]/Float_t(mv2MIP) < 20)
	175	{
	176	Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
	177	ampLED = qt/Float_t(mv2MIP);
	178	AliDebug(1,Form(" ipmt %i QTC %f ch QTC in MIP %f, time in chann %f (led-cfd) %f in MIPs %f",
	179	ipmt, adc[ipmt], adc[ipmt]/Float_t(mv2MIP), time[ipmt],sl,ampLED ));
	180	}
	181	else
	182	{ AliDebug(1,Form(" amplitude %f MIPs on PMT %i, write QTC in both ", (adc[ipmt]/Float_t(mv2MIP)), ipmt));
	183	ampLED=adc[ipmt]/Float_t(mv2MIP);}
c883fdf2	184	frecpoints->SetTime(ipmt,time[ipmt]);
c883fdf2	185	frecpoints->SetAmp(ipmt,adc[ipmt]/Float_t(mv2MIP));
c724dd64	186	frecpoints->SetAmpLED(ipmt,ampLED);
dc7ca31d	187	}
	188	else {
	189	time[ipmt] = 0;
	190	adc[ipmt] = 0;
	191	}
	192	}
94c27e4f	193
dc7ca31d	194	for (Int_t ipmt=0; ipmt<12; ipmt++){
dc7ca31d	195	if(time[ipmt] > 1 ) {
c41ceaac	196	if(time[ipmt]<besttimeC){
	197	besttimeC=time[ipmt]; //timeC
	198	pmtBestC=ipmt;
dc7ca31d	199	}
	200	}
	201	}
	202	for ( Int_t ipmt=12; ipmt<24; ipmt++){
	203	if(time[ipmt] > 1) {
c41ceaac	204	if(time[ipmt]<besttimeA) {
	205	besttimeA=time[ipmt]; //timeA
	206	pmtBestA=ipmt;}
dc7ca31d	207	}
dc7ca31d	208	}
c41ceaac	209	if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
c41ceaac	210	if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
12e9daf9	211	AliDebug(1,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC));
dc7ca31d	212	Float_t c = 0.0299792; // cm/ps
dc7ca31d	213	Float_t vertex = 0;
c41ceaac	214	if(besttimeA !=999999 && besttimeC != 999999 ){
12e9daf9	215	timeDiff = (besttimeC - besttimeA)*channelWidth;
446d6ec4	216	meanTime = (Float_t((besttimeA + besttimeC -4000)/2) * channelWidth);
12e9daf9	217	// meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
f16935f7	218	vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
dc7ca31d	219	frecpoints->SetVertex(vertex);
dc7ca31d	220	frecpoints->SetMeanTime(Int_t(meanTime));
446d6ec4	221	//online mean
	222	frecpoints->SetOnlineMean(Int_t(onlineMean * channelWidth));
	223	AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm online mean %i ps",timeDiff, meanTime,vertex, Int_t(onlineMean * channelWidth )));
dc7ca31d	224
dc7ca31d	225	}
446d6ec4	226
94c27e4f	227	//time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
446d6ec4	228	/*
94c27e4f	229	for (Int_t ipmt=0; ipmt<24; ipmt++) {
94c27e4f	230	if(time[ipmt]>1) {
446d6ec4	231	// time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
12e9daf9	232	time[ipmt] =Int_t ( Float_t(time[ipmt]) * channelWidth);
94c27e4f	233	frecpoints->SetTime(ipmt,time[ipmt]);
	234	}
	235	}
446d6ec4	236	*/
dc7ca31d	237	clustersTree->Fill();
bd375212	238
	239	delete timeCFD;
	240	delete timeLED;
	241	delete chargeQT0;
	242	delete chargeQT1;
dc7ca31d	243	}
	244
	245
c41ceaac	246	//_______________________________________________________________________
	247
	248	void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
	249	{
94c27e4f	250	// T0 raw ->
	251	// T0RecPoint writing
	252
	253	//Q->T-> coefficients !!!! should be measured!!!
e8ed1cd0	254	Int_t allData[110][5];
2e6a5ee0	255
e8ed1cd0	256	Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
aaa0a98f	257	TString option = GetOption();
2e6a5ee0	258	AliDebug(10,Form("Option: %s\n", option.Data()));
	259
	260	for (Int_t i0=0; i0<105; i0++)
	261	{
	262	for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0;
	263	}
	264
12e9daf9	265	Float_t besttimeA=9999999;
12e9daf9	266	Float_t besttimeC=9999999;
2e6a5ee0	267	Int_t pmtBestA=99999;
2e6a5ee0	268	Int_t pmtBestC=99999;
12e9daf9	269	Float_t timeDiff=9999999, meanTime=0;
2e6a5ee0	270	Double_t qt=0;
c883fdf2	271	Int_t mv2MIP = fParam-> GetmV2Mip();
c883fdf2	272
2e6a5ee0	273	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
	274
	275	recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
	276
	277
	278	AliDebug(10," before read data ");
	279	AliT0RawReader myrawreader(rawReader);
	280	if (!myrawreader.Next())
	281	AliDebug(1,Form(" no raw data found!!"));
	282	else
	283	{
	284	for (Int_t i=0; i<105; i++) {
	285	for (Int_t iHit=0; iHit<5; iHit++)
	286	{
	287	allData[i][iHit] = myrawreader.GetData(i,iHit);
	288	}
	289	}
	290
	291	Float_t channelWidth = fParam->GetChannelWidth() ;
	292
12e9daf9	293	// Int_t meanT0 = fParam->GetMeanT0();
2e6a5ee0	294	if(option == "pdc"){
	295	for (Int_t in=0; in<24; in++)
	296	{
	297
	298	timeLED[in] = allData[in+1][0] ;
	299	timeCFD[in] = allData[in+25][0] ;
	300	chargeQT1[in] = allData[in+57][0] ;
a7027400	301	chargeQT0[in] = allData[in+81][0] ;
2e6a5ee0	302	}
	303	}
	304
	305	if(option == "cosmic") {
	306	for (Int_t in=0; in<12; in++)
	307	{
	308	timeCFD[in] = allData[in+1][0] ;
	309	timeCFD[in+12] = allData[in+56+1][0] ;
	310	timeLED[in] = allData[in+12+1][0] ;
	311	timeLED[in+12] = allData[in+68+1][0] ;
	312	}
	313
c883fdf2	314	for (Int_t in=0; in<12; in++)
2e6a5ee0	315	{
c883fdf2	316	chargeQT1[in]=allData[2*in+25][0];
c883fdf2	317	chargeQT0[in]=allData[2*in+26][0];
2e6a5ee0	318	}
c883fdf2	319
c883fdf2	320	for (Int_t in=12; in<24; in++)
2e6a5ee0	321	{
c883fdf2	322	chargeQT1[in]=allData[2*in+57][0];
c883fdf2	323	chargeQT0[in]=allData[2*in+58][0];
2e6a5ee0	324	}
	325
	326	}
	327	for (Int_t in=0; in<24; in++)
c883fdf2	328	AliDebug(10, Form(" readed Raw %i %i %i %i %i",
c883fdf2	329	in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in]));
446d6ec4	330	Int_t onlineMean = allData[49][0];
2e6a5ee0	331
12e9daf9	332	Float_t time[24], adc[24];
2e6a5ee0	333	for (Int_t ipmt=0; ipmt<24; ipmt++) {
	334	if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){
	335
	336	if(option == "pdc"){
	337	Double_t qt0 = Double_t(chargeQT0[ipmt]);
	338	Double_t qt1 = Double_t(chargeQT1[ipmt]);
29ed1d0e	339	if((qt1-qt0)>0) adc[ipmt] = Int_t(TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000.)));
2e6a5ee0	340	time[ipmt] = fCalib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD[ipmt], "pdc" ) ;
2e6a5ee0	341	Double_t sl = (timeLED[ipmt] - time[ipmt])*channelWidth;
a7027400	342	printf(" amplitude %f %f\n",adc[ipmt]/Float_t(mv2MIP), sl);
	343	//pp collison
	344	if( adc[ipmt]/Float_t(mv2MIP) < 20)
	345	{
	346	if(fAmpLEDrec.At(ipmt))
	347	qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
	348	}
	349	else //PbPb
	350	{ AliDebug(1,Form(" amplitude %f MIPs on PMT %i, write QTC in both ", (adc[ipmt]/Float_t(mv2MIP)), ipmt));
	351	qt=adc[ipmt]/Float_t(mv2MIP);}
	352
c883fdf2	353	frecpoints->SetTime(ipmt,time[ipmt]);
	354	frecpoints->SetAmp(ipmt,adc[ipmt]/Float_t(mv2MIP));
	355	frecpoints->SetAmpLED(ipmt,qt/Float_t(mv2MIP));
446d6ec4	356	AliDebug(10,Form(" QTC %f mv, time in chann %f ampLED %f",adc[ipmt] ,time[ipmt], qt));
c883fdf2	357	AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f \n ", adc[ipmt]/Float_t(mv2MIP),qt/Float_t(mv2MIP)));
2e6a5ee0	358	}
2e6a5ee0	359	if(option == "cosmic") {
2e6a5ee0	360	if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0)
	361	adc[ipmt] = chargeQT1[ipmt] - chargeQT0[ipmt];
	362	else
	363	adc[ipmt] = 0;
	364	// time[ipmt] = fCalib-> WalkCorrection( ipmt, adc[ipmt], timeCFD[ipmt],"cosmic" ) ;
c883fdf2	365
2e6a5ee0	366	Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
2e6a5ee0	367	time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt],"cosmic" ) ;
2e6a5ee0	368	time[ipmt] = time[ipmt] - allData[0][0] + 5000;
c883fdf2	369	AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
	370	ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
	371	Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl);
	372	Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
	373	AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f \n ",ampMip,qtMip));
	374
2e6a5ee0	375	frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
c883fdf2	376	frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam
	377	frecpoints->SetAmpLED(ipmt, Float_t(qtMip));
	378
	379
2e6a5ee0	380	}
	381
	382	}
	383	else {
	384	time[ipmt] = 0;
	385	adc[ipmt] = 0;
	386	}
	387	}
	388
	389	for (Int_t ipmt=0; ipmt<12; ipmt++){
	390	if(time[ipmt] > 1 ) {
	391	if(time[ipmt]<besttimeC){
	392	besttimeC=time[ipmt]; //timeC
	393	pmtBestC=ipmt;
	394	}
	395	}
	396	}
	397	for ( Int_t ipmt=12; ipmt<24; ipmt++){
	398	if(time[ipmt] > 1) {
	399	if(time[ipmt]<besttimeA) {
	400	besttimeA=time[ipmt]; //timeA
	401	pmtBestA=ipmt;}
	402	}
	403	}
	404	if(besttimeA !=9999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
	405	if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
12e9daf9	406	AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
2e6a5ee0	407	Float_t c = 0.0299792; // cm/ps
	408	Float_t vertex = 99999;
	409	if(besttimeA <9999999 && besttimeC < 9999999 ){
12e9daf9	410	timeDiff = ( besttimeC - besttimeA) *channelWidth;
446d6ec4	411	if(option == "pdc"){
	412	// meanTime = (besttimeA + besttimeC)/2 * channelWidth;
	413	meanTime = (besttimeA + besttimeC-4000.)/2 * channelWidth;
	414	onlineMean = Int_t (onlineMean * channelWidth);
	415	}
	416	if(option == "cosmic") {
12e9daf9	417	meanTime = Float_t((besttimeA + besttimeC)/2);
446d6ec4	418	onlineMean = onlineMean -allData[0][0];;
446d6ec4	419	}
12e9daf9	420	vertex = c*(timeDiff)/2.+ (fdZonA - fdZonC)/2;
2e6a5ee0	421	frecpoints->SetVertex(vertex);
2e6a5ee0	422	frecpoints->SetMeanTime(Int_t(meanTime));
446d6ec4	423	AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm online mean %i ",timeDiff, meanTime,vertex, onlineMean));
2e6a5ee0	424
	425	}
	426	} // if (else )raw data
	427	recTree->Fill();
	428	if(frecpoints) delete frecpoints;
c41ceaac	429	}
	430	//____________________________________________________________
	431
d76c31f4	432	void AliT0Reconstructor::FillESD(TTree /digitsTree/, TTree clustersTree, AliESDEvent *pESD) const
dc7ca31d	433	{
	434
	435	/***************************************************
	436	Resonstruct digits to vertex position
	437	****************************************************/
	438
dc7ca31d	439	AliDebug(1,Form("Start FillESD T0"));
dc7ca31d	440
d76c31f4	441	TTree *treeR = clustersTree;
dc7ca31d	442
	443	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
	444	if (!frecpoints) {
	445	AliError("Reconstruct Fill ESD >> no recpoints found");
	446	return;
	447	}
	448
	449	AliDebug(1,Form("Start FillESD T0"));
	450	TBranch *brRec = treeR->GetBranch("T0");
	451	if (brRec) {
	452	brRec->SetAddress(&frecpoints);
	453	}else{
f16935f7	454	AliError(Form("EXEC Branch T0 rec not found"));
dc7ca31d	455	return;
	456	}
	457
	458	brRec->GetEntry(0);
f16935f7	459	Float_t amp[24], time[24];
	460	Float_t zPosition = frecpoints -> GetVertex();
	461	Float_t timeStart = frecpoints -> GetMeanTime() ;
	462	for ( Int_t i=0; i<24; i++) {
94c27e4f	463	time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
dc7ca31d	464	amp[i] = frecpoints -> GetAmp(i);
dc7ca31d	465	}
f16935f7	466	pESD->SetT0zVertex(zPosition); //vertex Z position
dc7ca31d	467	pESD->SetT0(timeStart); // interaction time
	468	pESD->SetT0time(time); // best TOF on each PMT
	469	pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
5325480c	470
f16935f7	471	AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart));
dc7ca31d	472
dc7ca31d	473	} // vertex in 3 sigma
	474
	475
	476
	477
	478
	479