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