ITS/AliITSOnlineSDDBase.cxx

   1 /**************************************************************************
   2  * Copyright(c) 2007-2009, 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 #include "AliITSOnlineSDDBase.h"
  16 #include <TH2F.h>
  17 #include <TMath.h>
  18
  19
  20 ///////////////////////////////////////////////////////////////////
  21 //                                                               //
  22 // Implementation of the class used for SDD baselines            //
  23 // and noise analysis                                            //
  24 // Origin: F.Prino, Torino, prino@to.infn.it                     //
  25 //                                                               //
  26 ///////////////////////////////////////////////////////////////////
  27
  28
  29 ClassImp(AliITSOnlineSDDBase)
  30 //______________________________________________________________________
  31   AliITSOnlineSDDBase::AliITSOnlineSDDBase():AliITSOnlineSDD(),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.)
  32 {
  33   // default constructor
  34   Reset();
  35   SetMinBaseline();
  36   SetMaxBaseline();
  37   SetMinRawNoise();
  38   SetMaxRawNoise();
  39   SetNSigmaNoise();
  40 }
  41 //______________________________________________________________________
  42   AliITSOnlineSDDBase::AliITSOnlineSDDBase(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.)
  43 {
  44   // default constructor
  45   Reset();
  46   SetMinBaseline();
  47   SetMaxBaseline();
  48   SetMinRawNoise();
  49   SetMaxRawNoise();
  50   SetNSigmaNoise();
  51 }
  52 //______________________________________________________________________
  53 AliITSOnlineSDDBase::~AliITSOnlineSDDBase(){
  54   // Destructor
  55 }
  56 //______________________________________________________________________
  57 void AliITSOnlineSDDBase::Reset(){
  58   //
  59   fNEvents=0;
  60   for(Int_t i=0;i<fgkNAnodes;i++){
  61     fGoodAnode[i]=1;
  62     fSumBaseline[i]=0.;
  63     fSumRawNoise[i]=0.;
  64     fSumCMN[i]=0.;
  65   }
  66 }
  67 //______________________________________________________________________
  68 void  AliITSOnlineSDDBase::ValidateAnodes(){
  69   //
  70   for(Int_t ian=0;ian<fgkNAnodes;ian++){
  71     fGoodAnode[ian]=1;
  72     if(GetAnodeBaseline(ian)>fMaxBaseline || GetAnodeBaseline(ian)<fMinBaseline) fGoodAnode[ian]=0;
  73     else if(GetAnodeRawNoise(ian)>fMaxRawNoise || GetAnodeRawNoise(ian)<fMinRawNoise) fGoodAnode[ian]=0;
  74     else if(GetAnodeRawNoise(ian)>fNSigmaNoise*CalcMeanRawNoise()) fGoodAnode[ian]=0;
  75   }
  76 }
  77
  78 //______________________________________________________________________
  79 void AliITSOnlineSDDBase::AddEvent(TH2F* hrawd){
  80   //
  81   fNEvents++;
  82   const Int_t kTimeBins=fLastGoodTB-fFirstGoodTB+1;
  83   Float_t sum[fgkNAnodes];
  84   for(Int_t ian=0;ian<fgkNAnodes;ian++){
  85     Float_t sumQ=0.;
  86     sum[ian]=0.;
  87     for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){
  88       sum[ian]+=hrawd->GetBinContent(itb+1,ian+1);
  89       sumQ+=TMath::Power(hrawd->GetBinContent(itb+1,ian+1),2);
  90     }
  91     sum[ian]/=(Float_t)kTimeBins;
  92     sumQ/=(Float_t)kTimeBins;
  93     fSumBaseline[ian]+=sum[ian];
  94     fSumRawNoise[ian]+=sumQ;
  95   }
  96
  97   if(fNEvents==1) ValidateAnodes();
  98
  99   Float_t *cmnEven = new Float_t[kTimeBins];
 100   Float_t *cmnOdd  = new Float_t[kTimeBins];
 101   for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){
 102     Float_t sumEven=0., sumOdd=0.;
 103     Int_t countEven=0,countOdd=0;
 104     for(Int_t ian=0;ian<fgkNAnodes;ian+=2){
 105       if(!fGoodAnode[ian]) continue;
 106       sumEven+=hrawd->GetBinContent(itb+1,ian+1)-sum[ian];
 107       countEven++;
 108     }
 109     for(Int_t ian=1;ian<fgkNAnodes;ian+=2){
 110       if(!fGoodAnode[ian]) continue;
 111       sumOdd+=hrawd->GetBinContent(itb+1,ian+1)-sum[ian];
 112       countOdd++;
 113     }
 114     if(countEven>0) cmnEven[itb]=sumEven/countEven;
 115     if(countOdd>0) cmnOdd[itb]=sumOdd/countOdd;
 116   }
 117   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 118     Float_t num=0.,den=0.;
 119     if(!fGoodAnode[ian]) continue;
 120     for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){
 121       Float_t cmnCoef=cmnOdd[itb];
 122       if(ian%2==0) cmnCoef=cmnEven[itb];
 123       num+=(hrawd->GetBinContent(itb+1,ian+1)-sum[ian])*cmnCoef;
 124       den+=TMath::Power(cmnCoef,2);
 125     }
 126     if(den!=0) fSumCMN[ian]+=num/den;
 127   }
 128
 129   delete [] cmnEven;
 130   delete [] cmnOdd;
 131 }
 132 //______________________________________________________________________
 133 Float_t AliITSOnlineSDDBase::GetMinimumBaseline() const {
 134   Float_t basMin=1008.;
 135   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 136     Float_t bas=GetAnodeBaseline(ian);
 137     if(bas>0 && bas < basMin) basMin=bas;
 138   }
 139   return basMin;
 140 }
 141 //______________________________________________________________________
 142 Float_t AliITSOnlineSDDBase::CalcMeanRawNoise() const{
 143   //
 144   Float_t meanns=0.;
 145   Int_t cnt=0;
 146   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 147     if(!fGoodAnode[ian]) continue;
 148     meanns+=GetAnodeRawNoise(ian);
 149     cnt++;
 150   }
 151   if(cnt>0) meanns/=(Float_t)cnt;
 152   return meanns;
 153 }
 154 //______________________________________________________________________
 155 void AliITSOnlineSDDBase::WriteToASCII(){
 156   //
 157   Char_t outfilnam[100];
 158   Float_t basMin=GetMinimumBaseline();
 159   sprintf(outfilnam,"SDDbase_step1_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
 160   FILE* outf=fopen(outfilnam,"w");
 161   Float_t corrnoise=2.;
 162   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 163     Float_t bas=GetAnodeBaseline(ian);
 164     Int_t corr=(Int_t)(bas-basMin+0.5);
 165     if(corr>63) corr=63; // only 6 bits in jtag for correction
 166     fprintf(outf,"%d %d %11.6f %d %d %11.6f %11.6f %11.6f\n",ian,IsAnodeGood(ian),GetAnodeBaseline(ian),(Int_t)basMin,corr,GetAnodeRawNoise(ian),GetAnodeCommonMode(ian),corrnoise);
 167   }
 168   fclose(outf);
 169 }