[u/mrichter/AliRoot.git] / T0 / AliT0CalibWalk.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.                  *
 **************************************************************************/
 
/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
// class T0 walk correction      Alla Maevskaya alla@inr.ru 20.11.2007        //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include "AliT0CalibWalk.h"
#include "AliLog.h"

#include <TObjArray.h>
#include <TGraph.h>
#include <TFile.h>
#include <TH2F.h> 
#include <TMath.h>
#include <TSystem.h>
#include <Riostream.h>
#include <TSpectrum.h>
#include <TProfile.h>
#include <TF1.h>

ClassImp(AliT0CalibWalk)

//________________________________________________________________
  AliT0CalibWalk::AliT0CalibWalk():   TNamed(),
				      fWalk(0),
				      fAmpLEDRec(0),
				      fQTC(0),
				      fAmpLED(0)
{
  //
}

//________________________________________________________________
AliT0CalibWalk::AliT0CalibWalk(const char* name):TNamed(),
				      fWalk(0),
				      fAmpLEDRec(0),				  				      fQTC(0),
				      fAmpLED(0)
    
{
  TString namst = "Calib_";
  namst += name;
  SetName(namst.Data());
  SetTitle(namst.Data());

}

//________________________________________________________________
AliT0CalibWalk::AliT0CalibWalk(const AliT0CalibWalk& calibda) :
  TNamed(calibda),		
  fWalk(0),
  fAmpLEDRec(0),
  fQTC(0),
  fAmpLED(0)
 
{
// copy constructor
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());


}

//________________________________________________________________
AliT0CalibWalk &AliT0CalibWalk::operator =(const AliT0CalibWalk& calibda)
{
// assignment operator
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());
 
  return *this;
}

//________________________________________________________________
AliT0CalibWalk::~AliT0CalibWalk()
{
  //
}
//________________________________________________________________  

Bool_t AliT0CalibWalk::MakeWalkCorrGraph(const char *laserFile)
{
  //make walk corerction for preprocessor
  Float_t sigma,cfdmean, qtmean, ledmean;
  Bool_t ok=true;
  Float_t   mips[50];
  
  gFile = TFile::Open(laserFile);
  if(!gFile) {
    AliError("No input laser data found ");
  }
  else
    {
      //      gFile->ls();
      TH1F* hAmp = (TH1F*) gFile->Get("hAmpLaser");
      Int_t nmips=0;
      for (Int_t ibin=0; ibin<2000; ibin++) {
	Float_t bincont = hAmp->GetBinContent(ibin);
	if(bincont>0){ 
	  mips[nmips] = hAmp->GetXaxis()->GetBinCenter(ibin);
	  cout<<ibin<<" bincont "<<bincont<<" amp "<< mips[nmips]<<endl;
	  nmips++;
	}	
      }    
      
      if (nmips<17) {
	ok=false;
	return ok;
      } 
       
      Float_t x1[50], y1[50]; 
      Float_t x2[50], xx2[50],y2[50];
      Float_t xx1[50],yy1[50], xx[50];
      
      Float_t cfd0 = 0;
      
      for (Int_t ii=0; ii<nmips; ii++)
	x1[ii] = y1[ii] = x2[ii] = y2[ii] = 0; 
      
      for (Int_t i=0; i<24; i++)
	{
	  cfd0 = 0;
	  for (Int_t im=0; im<nmips; im++)
	    {	      
	      TString cfd = Form("hCFD%i_%i",i+1,im+1);
	      TString qtc = Form("hQTC%i_%i",i+1,im+1);
	      TString led = Form("hLED%i_%i",i+1,im+1);
	      
	      TH1F *hCFD = (TH1F*) gFile->Get(cfd.Data()) ;
	      TH1F *hLED = (TH1F*) gFile->Get(led.Data());
	      TH1F *hQTC = (TH1F*) gFile->Get(qtc.Data()) ;
	      //	      hCFD->SetDirectory(0);
	      //	      hQTC->SetDirectory(0);
	      //	      hLED->SetDirectory(0);
	      if(!hCFD )
 	      	AliWarning(Form(" no CFD data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
	      if(!hQTC )
 	      	AliWarning(Form(" no QTC correction data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
	      if(!hLED)	      
	      	AliWarning(Form(" no LED correction data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
	      if( hCFD && hCFD->GetEntries()<500 ) {
		ok=false;
		printf("no peak in CFD spectrum for PMT %i amplitude %i\n",i,im);
		return ok;
	      }
	      
	      if(hCFD && hCFD->GetEntries()>500 ) {
		if( hCFD->GetRMS() >= 1.5) 
		  GetMeanAndSigma(hCFD, cfdmean, sigma);
		else
		  cfdmean = hCFD->GetMean();
		
	      if(TMath::Abs(hCFD->GetMean() - cfdmean) >10 ) cfdmean = hCFD->GetMean(); 
		if (im == 0) cfd0 = cfdmean;
		y1[im] =  cfdmean - cfd0;
	      }	
	      if(hQTC && hQTC->GetEntries()>500) {
		GetMeanAndSigma(hQTC, qtmean, sigma);
		
		x1[im] = qtmean;
		if( x1[im] == 0) {
		  ok=false;
		  printf("no peak in QTC signal for PMT %i amplitude %i\n",i,im);
		  return ok;
		}
	      }
		
	      if( hLED && hLED->GetEntries()>500) {
		GetMeanAndSigma(hLED, ledmean, sigma);
	      }				   
	      else
		{ 
		  ok=false;
		  printf("no peak in LED spectrum for PMT %i amplitude %i\n",i,im);
		  return ok;
		}
	      x2[im] = ledmean;
	      xx2[im] = x2[nmips-im-1];
		
		xx[im]=mips[im];
		if (hQTC) delete  hQTC;
		if (hCFD) delete  hCFD;
		if (hLED) delete  hLED;
		
	    }
	  
	  for (Int_t imi=0; imi<nmips; imi++)
	    {
	      yy1[imi] = Float_t (mips[nmips-imi-1]);
	      xx1[imi] = x2[nmips-imi-1]; 
	      //	      cout<<" LED rev "<<i<<" "<<imi<<" "<<xx1[imi]<<" "<< yy1[imi]<<"nmips-imi-1 = "<< nmips-imi-1<<endl;
	    }
	  
	  if(i==0) cout<<"Making graphs..."<<endl;
	  
      TGraph *grwalkqtc = new TGraph (nmips,x1,y1);
      grwalkqtc->SetTitle(Form("PMT%i",i));
      TGraph *grwalkled = new TGraph (nmips,x2,y1);
      grwalkled->SetTitle(Form("PMT%i",i));
      fWalk.AddAtAndExpand(grwalkqtc,i);
      fAmpLEDRec.AddAtAndExpand(grwalkled,i);
      //	  cout<<" add walk "<<i<<endl;
      
      //fit amplitude graphs to make comparison wth new one	  
      TGraph *grampled = new TGraph (nmips,xx1,yy1);
      TGraph *grqtc = new TGraph (nmips,x1,xx);
      fQTC.AddAtAndExpand(grqtc,i);	 
      fAmpLED.AddAtAndExpand(grampled,i);
      //	  cout<<" add amp "<<i<<endl;
      
      if(i==23)
	cout<<"Graphs created..."<<endl;
	}
    } //if gFile exits

  return ok;
}

void AliT0CalibWalk::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma) 
{

  const double window = 5.;  //fit window 
 
  double meanEstimate, sigmaEstimate; 
  int maxBin;
  maxBin        =  hist->GetMaximumBin(); //position of maximum
  meanEstimate  =  hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
  sigmaEstimate = hist->GetRMS();
  TF1* fit= new TF1("fit","gaus", meanEstimate - window*sigmaEstimate, meanEstimate + window*sigmaEstimate);
  fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
  hist->Fit("fit","RQ","Q");

  mean  = (Float_t) fit->GetParameter(1);
  sigma = (Float_t) fit->GetParameter(2);

  delete fit;
}
Commit	Line	Data
a2ad8166	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	**************************************************************************/
271b5bd3	15
a2ad8166	16	/* $Id$ */
	17
	18	///////////////////////////////////////////////////////////////////////////////
	19	// //
	20	// class T0 walk correction Alla Maevskaya alla@inr.ru 20.11.2007 //
	21	// //
	22	///////////////////////////////////////////////////////////////////////////////
	23
	24	#include "AliT0CalibWalk.h"
a2ad8166	25	#include "AliLog.h"
a2ad8166	26
	27	#include <TObjArray.h>
	28	#include <TGraph.h>
	29	#include <TFile.h>
a2ad8166	30	#include <TH2F.h>
	31	#include <TMath.h>
	32	#include <TSystem.h>
	33	#include <Riostream.h>
	34	#include <TSpectrum.h>
a2ad8166	35	#include <TProfile.h>
8f1790c4	36	#include <TF1.h>
a2ad8166	37
	38	ClassImp(AliT0CalibWalk)
	39
	40	//________________________________________________________________
	41	AliT0CalibWalk::AliT0CalibWalk(): TNamed(),
	42	fWalk(0),
c883fdf2	43	fAmpLEDRec(0),
	44	fQTC(0),
	45	fAmpLED(0)
a2ad8166	46	{
	47	//
	48	}
	49
	50	//________________________________________________________________
	51	AliT0CalibWalk::AliT0CalibWalk(const char* name):TNamed(),
	52	fWalk(0),
c883fdf2	53	fAmpLEDRec(0), fQTC(0),
	54	fAmpLED(0)
	55
a2ad8166	56	{
	57	TString namst = "Calib_";
	58	namst += name;
	59	SetName(namst.Data());
	60	SetTitle(namst.Data());
	61
	62	}
	63
	64	//________________________________________________________________
	65	AliT0CalibWalk::AliT0CalibWalk(const AliT0CalibWalk& calibda) :
	66	TNamed(calibda),
	67	fWalk(0),
c883fdf2	68	fAmpLEDRec(0),
	69	fQTC(0),
	70	fAmpLED(0)
	71
a2ad8166	72	{
	73	// copy constructor
	74	SetName(calibda.GetName());
	75	SetTitle(calibda.GetName());
	76
	77
	78	}
	79
	80	//________________________________________________________________
	81	AliT0CalibWalk &AliT0CalibWalk::operator =(const AliT0CalibWalk& calibda)
	82	{
	83	// assignment operator
	84	SetName(calibda.GetName());
	85	SetTitle(calibda.GetName());
	86
	87	return *this;
	88	}
	89
	90	//________________________________________________________________
	91	AliT0CalibWalk::~AliT0CalibWalk()
	92	{
	93	//
	94	}
d95247c3	95	//________________________________________________________________
a2ad8166	96
d95247c3	97	Bool_t AliT0CalibWalk::MakeWalkCorrGraph(const char *laserFile)
a2ad8166	98	{
7576945f	99	//make walk corerction for preprocessor
8704b209	100	Float_t sigma,cfdmean, qtmean, ledmean;
d95247c3	101	Bool_t ok=true;
ff49b4c0	102	Float_t mips[50];
d95247c3	103
c2337900	104	gFile = TFile::Open(laserFile);
6318dd46	105	if(!gFile) {
	106	AliError("No input laser data found ");
	107	}
	108	else
	109	{
8f1790c4	110	// gFile->ls();
d95247c3	111	TH1F* hAmp = (TH1F*) gFile->Get("hAmpLaser");
d95247c3	112	Int_t nmips=0;
99584f2a	113	for (Int_t ibin=0; ibin<2000; ibin++) {
d95247c3	114	Float_t bincont = hAmp->GetBinContent(ibin);
	115	if(bincont>0){
	116	mips[nmips] = hAmp->GetXaxis()->GetBinCenter(ibin);
	117	cout<<ibin<<" bincont "<<bincont<<" amp "<< mips[nmips]<<endl;
	118	nmips++;
	119	}
c69fcbc1	120	}
c69fcbc1	121
07342b9d	122	if (nmips<17) {
	123	ok=false;
	124	return ok;
	125	}
c69fcbc1	126
	127	Float_t x1[50], y1[50];
	128	Float_t x2[50], xx2[50],y2[50];
	129	Float_t xx1[50],yy1[50], xx[50];
95f63b36	130
612737bb	131	Float_t cfd0 = 0;
95f63b36	132
d95247c3	133	for (Int_t ii=0; ii<nmips; ii++)
d95247c3	134	x1[ii] = y1[ii] = x2[ii] = y2[ii] = 0;
95f63b36	135
95f63b36	136	for (Int_t i=0; i<24; i++)
c883fdf2	137	{
612737bb	138	cfd0 = 0;
612737bb	139	for (Int_t im=0; im<nmips; im++)
8f1790c4	140	{
d95247c3	141	TString cfd = Form("hCFD%i_%i",i+1,im+1);
d95247c3	142	TString qtc = Form("hQTC%i_%i",i+1,im+1);
3740a735	143	TString led = Form("hLED%i_%i",i+1,im+1);
95f63b36	144
d95247c3	145	TH1F hCFD = (TH1F) gFile->Get(cfd.Data()) ;
	146	TH1F hLED = (TH1F) gFile->Get(led.Data());
	147	TH1F hQTC = (TH1F) gFile->Get(qtc.Data()) ;
ff49b4c0	148	// hCFD->SetDirectory(0);
	149	// hQTC->SetDirectory(0);
	150	// hLED->SetDirectory(0);
d95247c3	151	if(!hCFD )
	152	AliWarning(Form(" no CFD data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
	153	if(!hQTC )
	154	AliWarning(Form(" no QTC correction data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
	155	if(!hLED)
	156	AliWarning(Form(" no LED correction data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
8704b209	157	if( hCFD && hCFD->GetEntries()<500 ) {
	158	ok=false;
	159	printf("no peak in CFD spectrum for PMT %i amplitude %i\n",i,im);
	160	return ok;
	161	}
ff49b4c0	162
8704b209	163	if(hCFD && hCFD->GetEntries()>500 ) {
	164	if( hCFD->GetRMS() >= 1.5)
	165	GetMeanAndSigma(hCFD, cfdmean, sigma);
	166	else
	167	cfdmean = hCFD->GetMean();
	168
612737bb	169	if(TMath::Abs(hCFD->GetMean() - cfdmean) >10 ) cfdmean = hCFD->GetMean();
	170	if (im == 0) cfd0 = cfdmean;
	171	y1[im] = cfdmean - cfd0;
8704b209	172	}
	173	if(hQTC && hQTC->GetEntries()>500) {
	174	GetMeanAndSigma(hQTC, qtmean, sigma);
	175
	176	x1[im] = qtmean;
	177	if( x1[im] == 0) {
07342b9d	178	ok=false;
8704b209	179	printf("no peak in QTC signal for PMT %i amplitude %i\n",i,im);
07342b9d	180	return ok;
ff49b4c0	181	}
8704b209	182	}
ff49b4c0	183
8704b209	184	if( hLED && hLED->GetEntries()>500) {
	185	GetMeanAndSigma(hLED, ledmean, sigma);
	186	}
	187	else
	188	{
	189	ok=false;
	190	printf("no peak in LED spectrum for PMT %i amplitude %i\n",i,im);
	191	return ok;
95f63b36	192	}
8704b209	193	x2[im] = ledmean;
8704b209	194	xx2[im] = x2[nmips-im-1];
ff49b4c0	195
	196	xx[im]=mips[im];
	197	if (hQTC) delete hQTC;
	198	if (hCFD) delete hCFD;
	199	if (hLED) delete hLED;
	200
e47b556f	201	}
d95247c3	202
8f1790c4	203	for (Int_t imi=0; imi<nmips; imi++)
95f63b36	204	{
8f1790c4	205	yy1[imi] = Float_t (mips[nmips-imi-1]);
8f1790c4	206	xx1[imi] = x2[nmips-imi-1];
d95247c3	207	// cout<<" LED rev "<<i<<" "<<imi<<" "<<xx1[imi]<<" "<< yy1[imi]<<"nmips-imi-1 = "<< nmips-imi-1<<endl;
95f63b36	208	}
95f63b36	209
d95247c3	210	if(i==0) cout<<"Making graphs..."<<endl;
99584f2a	211
8704b209	212	TGraph *grwalkqtc = new TGraph (nmips,x1,y1);
99584f2a	213	grwalkqtc->SetTitle(Form("PMT%i",i));
1daa10df	214	TGraph *grwalkled = new TGraph (nmips,x2,y1);
99584f2a	215	grwalkled->SetTitle(Form("PMT%i",i));
	216	fWalk.AddAtAndExpand(grwalkqtc,i);
	217	fAmpLEDRec.AddAtAndExpand(grwalkled,i);
	218	// cout<<" add walk "<<i<<endl;
	219
	220	//fit amplitude graphs to make comparison wth new one
1daa10df	221	TGraph *grampled = new TGraph (nmips,xx1,yy1);
1daa10df	222	TGraph *grqtc = new TGraph (nmips,x1,xx);
99584f2a	223	fQTC.AddAtAndExpand(grqtc,i);
	224	fAmpLED.AddAtAndExpand(grampled,i);
	225	// cout<<" add amp "<<i<<endl;
	226
	227	if(i==23)
	228	cout<<"Graphs created..."<<endl;
271b5bd3	229	}
6318dd46	230	} //if gFile exits
07342b9d	231
d95247c3	232	return ok;
a2ad8166	233	}
a2ad8166	234
ff49b4c0	235	void AliT0CalibWalk::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma)
	236	{
	237
	238	const double window = 5.; //fit window
ff49b4c0	239
	240	double meanEstimate, sigmaEstimate;
	241	int maxBin;
	242	maxBin = hist->GetMaximumBin(); //position of maximum
	243	meanEstimate = hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
	244	sigmaEstimate = hist->GetRMS();
	245	TF1* fit= new TF1("fit","gaus", meanEstimate - windowsigmaEstimate, meanEstimate + windowsigmaEstimate);
	246	fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
	247	hist->Fit("fit","RQ","Q");
	248
	249	mean = (Float_t) fit->GetParameter(1);
	250	sigma = (Float_t) fit->GetParameter(2);
	251
	252	delete fit;
	253	}
c883fdf2	254
	255
	256