ITS/AliITSOnlineSDDBTP.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 "AliITSOnlineSDDBTP.h"
  16 #include <TH2F.h>
  17 #include <TMath.h>
  18
  19
  20 ///////////////////////////////////////////////////////////////////
  21 //                                                               //
  22 // Class used for SDD baseline, noise and gain analysis          //
  23 // Origin: F.Prino, Torino, prino@to.infn.it                     //
  24 //                                                               //
  25 ///////////////////////////////////////////////////////////////////
  26
  27
  28 ClassImp(AliITSOnlineSDDBTP)
  29 //______________________________________________________________________
  30   AliITSOnlineSDDBTP::AliITSOnlineSDDBTP():AliITSOnlineSDD(),fNBaseEvents(0),fNTPEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.),fNSigmaGain(0.)
  31 {
  32   // default constructor
  33   Reset();
  34   SetMinBaseline();
  35   SetMaxBaseline();
  36   SetMinRawNoise();
  37   SetMaxRawNoise();
  38   SetNSigmaNoise();
  39   SetNSigmaGain();
  40 }
  41 //______________________________________________________________________
  42   AliITSOnlineSDDBTP::AliITSOnlineSDDBTP(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fNBaseEvents(0),fNTPEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.),fNSigmaGain(0.)
  43 {
  44   // default constructor
  45   Reset();
  46   SetMinBaseline();
  47   SetMaxBaseline();
  48   SetMinRawNoise();
  49   SetMaxRawNoise();
  50   SetNSigmaNoise();
  51   SetNSigmaGain();
  52 }
  53 //______________________________________________________________________
  54 AliITSOnlineSDDBTP::~AliITSOnlineSDDBTP(){
  55   // Destructor
  56 }
  57 //______________________________________________________________________
  58 void AliITSOnlineSDDBTP::Reset(){
  59   //
  60   fNBaseEvents=0;
  61   fNTPEvents=0;
  62   for(Int_t i=0;i<fgkNAnodes;i++){
  63     fGoodAnode[i]=1;
  64     fSumBaseline[i]=0.;
  65     fSumRawNoise[i]=0.;
  66     fSumCMN[i]=0.;
  67     fSumTPPeak[i]=0.;
  68     fTPPos[i]=0.;
  69   }
  70 }
  71 //______________________________________________________________________
  72 void  AliITSOnlineSDDBTP::ValidateAnodes(){
  73   //
  74   for(Int_t ian=0;ian<fgkNAnodes;ian++){
  75     fGoodAnode[ian]=1;
  76     if(GetAnodeBaseline(ian)>fMaxBaseline || GetAnodeBaseline(ian)<fMinBaseline) fGoodAnode[ian]=0;
  77     if(GetAnodeRawNoise(ian)>fMaxRawNoise || GetAnodeRawNoise(ian)<fMinRawNoise) fGoodAnode[ian]=0;
  78     if(GetAnodeRawNoise(ian)>fNSigmaNoise*CalcMeanRawNoise()) fGoodAnode[ian]=0;
  79   }
  80   if(fNTPEvents>0){
  81     Float_t meang,rmsg;
  82     StatGain(meang,rmsg);
  83     Float_t lowlim=meang-fNSigmaGain*rmsg;
  84     Float_t hilim=meang+fNSigmaGain*rmsg;
  85     for(Int_t ian=0;ian<fgkNAnodes;ian++){
  86       if(!fGoodAnode[ian]) continue;
  87       if(GetChannelGain(ian)<lowlim||GetChannelGain(ian)>hilim) fGoodAnode[ian]=0;
  88     }
  89   }
  90 }
  91
  92 //______________________________________________________________________
  93 void AliITSOnlineSDDBTP::AddTPEvent(TH2F* hrawd, Float_t xDAC){
  94   //
  95   if(fNBaseEvents==0) return;
  96   fNTPEvents++;
  97   Float_t tbmax=(Float_t)hrawd->GetNbinsX();
  98   for(Int_t ian=0;ian<fgkNAnodes;ian++){
  99     Float_t auxmax=0.;
 100     Int_t auxtb=0;
 101     if(!fGoodAnode[ian]) continue;
 102     for(Int_t itb=0;itb<tbmax;itb++){
 103       Float_t cnt=hrawd->GetBinContent(itb+1,ian+1);
 104       if(cnt>auxmax){
 105         auxmax=cnt;
 106         auxtb=itb;
 107       }
 108     }
 109     fSumTPPeak[ian]+=(auxmax-GetAnodeBaseline(ian))/xDAC;
 110     fTPPos[ian]+=auxtb;
 111   }
 112 }
 113 //______________________________________________________________________
 114 void AliITSOnlineSDDBTP::AddBaseEvent(TH2F* hrawd){
 115   //
 116   fNBaseEvents++;
 117   Float_t tbmax=(Float_t)hrawd->GetNbinsX();
 118   Float_t sum[fgkNAnodes];
 119   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 120     Float_t sumQ=0.;
 121     sum[ian]=0.;
 122     for(Int_t itb=0;itb<tbmax;itb++){
 123       sum[ian]+=hrawd->GetBinContent(itb+1,ian+1);
 124       sumQ+=TMath::Power(hrawd->GetBinContent(itb+1,ian+1),2);
 125     }
 126     sum[ian]/=tbmax;
 127     sumQ/=tbmax;
 128     fSumBaseline[ian]+=sum[ian];
 129     fSumRawNoise[ian]+=sumQ;
 130     if(fNBaseEvents==1) ValidateAnodes();
 131   }
 132
 133
 134   const Int_t kTbmax=int(tbmax);
 135   Float_t *cmnEven = new Float_t[kTbmax];
 136   Float_t *cmnOdd  = new Float_t[kTbmax];
 137   for(Int_t itb=0;itb<tbmax;itb++){
 138     Float_t sumEven=0., sumOdd=0.;
 139     Int_t countEven=0,countOdd=0;
 140     for(Int_t ian=0;ian<fgkNAnodes;ian+=2){
 141       if(!fGoodAnode[ian]) continue;
 142       sumEven+=hrawd->GetBinContent(itb+1,ian+1)-sum[ian];
 143       countEven++;
 144     }
 145     for(Int_t ian=1;ian<fgkNAnodes;ian+=2){
 146       if(!fGoodAnode[ian]) continue;
 147       sumOdd+=hrawd->GetBinContent(itb+1,ian+1)-sum[ian];
 148       countOdd++;
 149     }
 150     cmnEven[itb]=sumEven/countEven;
 151     cmnOdd[itb]=sumOdd/countOdd;
 152   }
 153   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 154     Float_t num=0.,den=0.;
 155     if(!fGoodAnode[ian]) continue;
 156     for(Int_t itb=0;itb<tbmax;itb++){
 157       Float_t cmnCoef=cmnOdd[itb];
 158       if(ian%2==0) cmnCoef=cmnEven[itb];
 159       num+=(hrawd->GetBinContent(itb+1,ian+1)-sum[ian])*cmnCoef;
 160       den+=TMath::Power(cmnCoef,2);
 161     }
 162     if(den!=0) fSumCMN[ian]+=num/den;
 163   }
 164   delete [] cmnEven;
 165   delete [] cmnOdd;
 166 }
 167 //______________________________________________________________________
 168 Float_t AliITSOnlineSDDBTP::CalcMeanRawNoise() const{
 169   //
 170   Float_t meanns=0.;
 171   Int_t cnt=0;
 172   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 173     if(!fGoodAnode[ian]) continue;
 174     meanns+=GetAnodeRawNoise(ian);
 175     cnt++;
 176   }
 177   if(cnt>0) meanns/=(Float_t)cnt;
 178   return meanns;
 179 }
 180 //______________________________________________________________________
 181 void AliITSOnlineSDDBTP::StatGain(Float_t &mean, Float_t  &rms){
 182   //
 183   Float_t sum=0.,sumq=0.;
 184   Int_t cnt=0;
 185   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 186     if(!fGoodAnode[ian]) continue;
 187     sum+=GetChannelGain(ian);
 188     sumq+=TMath::Power(GetChannelGain(ian),2);
 189     cnt++;
 190   }
 191   if(cnt>0){
 192     mean=sum/(Float_t)cnt;
 193     rms=TMath::Sqrt(sumq/(Float_t)cnt-mean*mean);
 194   }else{
 195     mean=0.;
 196     rms=0.;
 197   }
 198   return;
 199 }
 200 //______________________________________________________________________
 201 void AliITSOnlineSDDBTP::WriteToASCII(){
 202   //
 203   Char_t outfilnam[100];
 204   sprintf(outfilnam,"SDDbase_mod%03d_sid%d.data",fModuleId,fSide);
 205   FILE* outf=fopen(outfilnam,"w");
 206   Float_t corrnoise=2.;
 207   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 208     fprintf(outf,"%d %d %8.3f %8.3f %8.3f %8.3f %8.3f\n",ian,IsAnodeGood(ian),GetAnodeBaseline(ian),GetAnodeRawNoise(ian),GetAnodeCommonMode(ian),corrnoise,GetChannelGain(ian));
 209   }
 210   fclose(outf);
 211 }