X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ITS%2FAliITSOnlineSDDInjectors.cxx;h=4e8bae94197cbd5b28792da49a4e7af347bb1618;hb=9b5048fe034a3c6e2aaf93c9dc36bbfea418ca13;hp=135d074733d3089326bdc7284ea4ba472917dcc4;hpb=06bb3583e3e9db7234eddd67146703047a858775;p=u%2Fmrichter%2FAliRoot.git

diff --git a/ITS/AliITSOnlineSDDInjectors.cxx b/ITS/AliITSOnlineSDDInjectors.cxx
index 135d074733d..4e8bae94197 100644
--- a/ITS/AliITSOnlineSDDInjectors.cxx
+++ b/ITS/AliITSOnlineSDDInjectors.cxx
@@ -12,7 +12,9 @@
  * about the suitability of this software for any purpose. It is          *
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
+#include <TFile.h>
 #include "AliITSOnlineSDDInjectors.h"
+#include "AliLog.h"
 #include <TH2F.h>
 #include <TGraphErrors.h>
 #include <TMath.h>
@@ -35,22 +37,25 @@ const Float_t AliITSOnlineSDDInjectors::fgkDefaultMinSpeed = 5.5;
 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxSpeed = 9.0;
 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxErr = 1.5;
 const Int_t   AliITSOnlineSDDInjectors::fgkDefaultPolOrder = 3;
-const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMin[kInjLines] = {20,90,170};
-const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMax[kInjLines] = {50,160,240};
+const Float_t AliITSOnlineSDDInjectors::fgkDefaultTimeStep = 50.;
+const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMin[kInjLines] = {10,50,100};
+const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMax[kInjLines] = {20,70,120};
 
 //______________________________________________________________________
-AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0)
+AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fRMSTbZero(0.),fNEvents(0),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0),fTimeStep(0.),fUseTimeZeroSignal(kFALSE)
 {
   // default constructor
   SetPositions();
   SetDefaults();
+  SetTimeStep(fgkDefaultTimeStep);
 }
 //______________________________________________________________________
-AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0)
+AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fHisto(),fTbZero(0.),fRMSTbZero(0.),fNEvents(0),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0),fTimeStep(0.),fUseTimeZeroSignal(kFALSE)
 { 
 // standard constructor
   SetPositions();
   SetDefaults();
+  SetTimeStep(fgkDefaultTimeStep);
 }
 //______________________________________________________________________
 AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
@@ -75,8 +80,8 @@ void AliITSOnlineSDDInjectors::SetDefaults(){
 //______________________________________________________________________
 void AliITSOnlineSDDInjectors::SetPositions(){
   // 
-  Float_t xLinFromCenterUm[kInjLines]={31860.,17460.,660.};
-  Float_t xAnodeFromCenterUm=35085;
+  Double_t xLinFromCenterUm[kInjLines]={31860.,17460.,660.};
+  Double_t xAnodeFromCenterUm=35085;
   for(Int_t i=0;i<kInjLines;i++){
     fPosition[i]=xAnodeFromCenterUm-xLinFromCenterUm[i];
     fPosition[i]/=10000.; // from microns to cm
@@ -100,12 +105,51 @@ void AliITSOnlineSDDInjectors::Reset(){
 //______________________________________________________________________
 void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
   //
+  AddEvent(his);
+  FitDriftSpeedVsAnode();
+}
+//______________________________________________________________________
+void AliITSOnlineSDDInjectors::AddEvent(TH2F* his){
+  // Add the drift speed from current event to the average value
+  if(fNEvents==0){
+    for(Int_t i=0;i<kInjPads;i++){ 
+      fSumDriftSpeed[i]=0.;
+      fSumSqDriftSpeed[i]=0.;
+    }
+  }
   Reset();
   fHisto=his;
   FindGoodInjectors();
   FindCentroids();
   CalcTimeBinZero();
-  for(Int_t j=0;j<kInjPads;j++) CalcDriftSpeed(j);
+  for(Int_t j=0;j<kInjPads;j++){ 
+    CalcDriftSpeed(j);
+    fSumDriftSpeed[j]+=fDriftSpeed[j];
+    fSumSqDriftSpeed[j]+=fDriftSpeed[j]*fDriftSpeed[j];
+  }
+  ++fNEvents;
+}
+//______________________________________________________________________
+Double_t AliITSOnlineSDDInjectors::GetRMSDriftSpeed(Int_t ipad) const {
+  // 
+  if(fNEvents<=1) return 0.;
+  Double_t mean=fSumDriftSpeed[ipad]/(Double_t)fNEvents;
+  Double_t diff=fSumSqDriftSpeed[ipad]/(Double_t)fNEvents-mean*mean;
+  if(diff<0.) diff=0.;
+  return TMath::Sqrt(diff);
+}
+
+//______________________________________________________________________
+void AliITSOnlineSDDInjectors::FitMeanDriftSpeedVsAnode(){
+  // Calculates
+  if(fNEvents==0) return;
+  for(Int_t i=0;i<kInjPads;i++){ 
+    fDriftSpeed[i]=GetMeanDriftSpeed(i);
+    if(fNEvents>1){
+      Double_t rms=GetRMSDriftSpeed(i);
+      if(rms>0.) fDriftSpeedErr[i]=rms/TMath::Sqrt(fNEvents);
+    }
+  }
   FitDriftSpeedVsAnode();
 }
 //______________________________________________________________________
@@ -158,26 +202,42 @@ TGraphErrors* AliITSOnlineSDDInjectors::GetSelectedDriftSpeedGraph(Int_t minAcce
 }
 //______________________________________________________________________
 void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
-  //
-  Float_t tzero=0.,intCont=0.;
+  // Get time zero from trigger signal
+  Double_t tzero=0.,intCont=0.,rmsPeak=0.;
+  Bool_t isTbUsed[256];
+  Int_t nTbUsed=0;
+  for(Int_t i=0;i<256;i++) isTbUsed[i]=0;
   for(Int_t ian=0;ian<fgkNAnodes;ian++){
     for(Int_t itb=1;itb<fTbMin[0];itb++){
-      Float_t cont=fHisto->GetBinContent(itb,ian+1);
+      Double_t cont=fHisto->GetBinContent(itb,ian+1);
+      Double_t contm1=fHisto->GetBinContent(itb+1,ian+1);
+      Double_t contp1=fHisto->GetBinContent(itb-1,ian+1);
       if(cont>fLowThreshold){
-	tzero+=cont*float(itb);
-	intCont+=cont;
+	if(contm1>fHighThreshold || cont>fHighThreshold || contp1>fHighThreshold){
+	  tzero+=cont*float(itb);
+	  rmsPeak+=cont*float(itb)*float(itb);
+	  intCont+=cont;
+	  if(!isTbUsed[itb]){
+	    isTbUsed[itb]=1;
+	    ++nTbUsed;
+	  }
+	}
       }
     }
   }
-  if(intCont>0) fTbZero=tzero/intCont;
+  if(intCont>0){ 
+    fTbZero=tzero/intCont;
+    fRMSTbZero=TMath::Sqrt(rmsPeak/intCont-fTbZero*fTbZero);
+  }
+  if(nTbUsed==1) fRMSTbZero=0.5; 
 }
 //______________________________________________________________________
 void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
   // fits the anode dependence of drift speed with a polynomial function
   const Int_t kNn=fPolOrder+1;
-  Float_t **mat = new Float_t*[kNn];
-  for(Int_t i=0; i < kNn; i++) mat[i] = new Float_t[kNn];
-  Float_t *vect = new Float_t[kNn];
+  Double_t **mat = new Double_t*[kNn];
+  for(Int_t i=0; i < kNn; i++) mat[i] = new Double_t[kNn];
+  Double_t *vect = new Double_t[kNn];
 
   for(Int_t k1=0;k1<kNn;k1++){
     vect[k1]=0;
@@ -188,7 +248,7 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
   Int_t npts = 0;
   for(Int_t k1=0;k1<kNn;k1++){
     for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
-      Float_t x=(Float_t)GetAnodeNumber(jpad);
+      Double_t x=(Double_t)GetAnodeNumber(jpad);
       if(fDriftSpeed[jpad]>0 && GetInjPadStatus(jpad)>fPadStatusCutForFit){
 	  vect[k1]+=fDriftSpeed[jpad]*TMath::Power(x,k1)/TMath::Power(fDriftSpeedErr[jpad],2);	
 	  if(k1==0) npts++;
@@ -200,7 +260,7 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
   }
   if(npts<fPolOrder+1){ 
     if(fParam) delete [] fParam;
-    fParam=new Float_t[kNn];
+    fParam=new Double_t[kNn];
     for(Int_t i=0; i<kNn;i++)fParam[i]=0;
   }else{
     Int_t *iPivot = new Int_t[kNn];
@@ -209,7 +269,7 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
     for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
     Int_t iCol=-1,iRow=-1;
     for(Int_t i=0;i<kNn;i++){
-      Float_t big=0.;
+      Double_t big=0.;
       for(Int_t j=0;j<kNn;j++){
 	if(iPivot[j]!=1){
 	  for(Int_t k=0;k<kNn;k++){
@@ -224,7 +284,7 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
 	}
       }
       iPivot[iCol]++;
-      Float_t aux;
+      Double_t aux;
       if(iRow!=iCol){
 	for(Int_t l=0;l<kNn;l++){
 	  aux=mat[iRow][l];
@@ -238,7 +298,7 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
       indxR[i]=iRow;
       indxC[i]=iCol;
       if(mat[iCol][iCol]==0) break;
-      Float_t pivinv=1./mat[iCol][iCol];
+      Double_t pivinv=1./mat[iCol][iCol];
       mat[iCol][iCol]=1;
       for(Int_t l=0;l<kNn;l++) mat[iCol][l]*=pivinv;
       vect[iCol]*=pivinv;
@@ -257,7 +317,7 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
     
   
     if(fParam) delete [] fParam;
-    fParam=new Float_t[kNn];
+    fParam=new Double_t[kNn];
     for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];
   }
 
@@ -268,10 +328,10 @@ void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
 //______________________________________________________________________
 void AliITSOnlineSDDInjectors::CalcDriftSpeed(Int_t jpad){
   // 
-  Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
+  Double_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
   Int_t npt=0;
-  Float_t y[kInjLines],ey[kInjLines];
-  Float_t tzero=0,erry=0;
+  Double_t y[kInjLines],ey[kInjLines];
+  Double_t tzero=0,erry=0;
   for(Int_t i=0;i<kInjLines;i++){ 
     y[i]=fCentroid[jpad][i];
     ey[i]=fRMSCentroid[jpad][i];
@@ -285,26 +345,32 @@ void AliITSOnlineSDDInjectors::CalcDriftSpeed(Int_t jpad){
       sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
       sumWEI+=1./ey[i]/ey[i];
       tzero=fTbZero/ey[i]/ey[i];
-      erry=ey[i];
+      erry=ey[i]/ey[i]/ey[i];
       npt++;
     }
   }
-  Float_t vel=0,evel=0;
+  Double_t slope=0.,eslope=0.;
+  if(npt==1){
+    slope=(sumY-tzero)/sumX;
+    eslope=erry/sumX;
+  }
   if(npt>1){ 
-    Float_t slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
-    Float_t eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
-    if(slope!=0){
-      vel=1./slope*10000./25.;// micron/ns
-      evel=eslope/slope/slope*10000./25.;// micron/ns
+    if(fUseTimeZeroSignal){
+      sumY+=fTbZero/fRMSTbZero/fRMSTbZero;
+      sumX+=0.;
+      sumXX+=0.;
+      sumYY+=fTbZero*fTbZero/fRMSTbZero/fRMSTbZero;
+      sumXY+=0.;
+      sumWEI+=1./fRMSTbZero/fRMSTbZero;
     }
+    slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
+    eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
   }
-  if(npt==1){
-    Float_t slope=(sumY-tzero)/sumX;
-    Float_t eslope=erry/sumX;
-    if(slope!=0){
-      vel=1./slope*10000./25.;// micron/ns    
-      evel=eslope/slope/slope*10000./25.;// micron/ns
-    }
+
+  Double_t vel=0,evel=0;
+  if(slope!=0. && fTimeStep>0.){
+    vel=1./slope*10000./fTimeStep;// micron/ns
+    evel=eslope/slope/slope*10000./fTimeStep;// micron/ns
   }
   if(vel>fMaxDriftSpeed||vel<fMinDriftSpeed || evel>fMaxDriftSpeedErr){ 
     vel=0.;
@@ -366,10 +432,12 @@ void AliITSOnlineSDDInjectors::FindGoodInjectors(){
       for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
 	Float_t c1=fHisto->GetBinContent(jjj,ian+1);
 	Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
-	Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
-	if(c1>fLowThreshold && c2>fHighThreshold && c3>fLowThreshold){ 
-	  fGoodInj[jpad][jlin]=1;
-	  break;
+	//	Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
+	if(c1>fLowThreshold && c2>fLowThreshold){ 
+	  if(c1>fHighThreshold || c2>fHighThreshold){
+	    fGoodInj[jpad][jlin]=1;
+	    break;
+	  }
 	}
       }
     }
@@ -382,41 +450,41 @@ void AliITSOnlineSDDInjectors::FindCentroids(){
     Int_t ian=GetAnodeNumber(jpad);
     for(Int_t jlin=0;jlin<kInjLines;jlin++){
       if(!fGoodInj[jpad][jlin]) continue;
-      Float_t maxcont=0;
+      Double_t maxcont=0;
       Int_t ilmax=-1;
       for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
-	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
+	Double_t cont=fHisto->GetBinContent(jjj,ian+1);
 	if(cont>maxcont){
 	  maxcont=cont;
 	  ilmax=jjj;
 	}
       }
-      Float_t intCont=0;
+      Double_t intCont=0;
       Int_t jjj=ilmax;
       while(1){
-	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
+	Double_t cont=fHisto->GetBinContent(jjj,ian+1);
 	if(cont<fLowThreshold) break;
 	if(cont<fgkSaturation){
-	  fCentroid[jpad][jlin]+=cont*(Float_t)jjj;
-	  fRMSCentroid[jpad][jlin]+=cont*TMath::Power((Float_t)jjj,2);
+	  fCentroid[jpad][jlin]+=cont*(Double_t)jjj;
+	  fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
 	  intCont+=cont;
 	}
 	jjj--;
       }
       jjj=ilmax+1;
       while(1){
-	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
+	Double_t cont=fHisto->GetBinContent(jjj,ian+1);
 	if(cont<fLowThreshold) break;
 	if(cont<fgkSaturation){
 	  fCentroid[jpad][jlin]+=cont*float(jjj);
-	  fRMSCentroid[jpad][jlin]+=cont*TMath::Power((Float_t)jjj,2);
+	  fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
 	  intCont+=cont;
 	}
 	jjj++;
       }
       if(intCont>0){ 
 	fCentroid[jpad][jlin]/=intCont;
-	fRMSCentroid[jpad][jlin]=TMath::Sqrt(fRMSCentroid[jpad][jlin]/intCont-fCentroid[jpad][jlin]*fCentroid[jpad][jlin]);
+	fRMSCentroid[jpad][jlin]=TMath::Sqrt(fRMSCentroid[jpad][jlin]/intCont-fCentroid[jpad][jlin]*fCentroid[jpad][jlin])/TMath::Sqrt(intCont);
       }
       else{ 
 	fCentroid[jpad][jlin]=0.;
@@ -459,3 +527,29 @@ void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_
   fprintf(outf,"\n");
   fclose(outf);  
 }
+//______________________________________________________________________
+Bool_t AliITSOnlineSDDInjectors::WriteToROOT(TFile *fil) const {
+  //
+  if(fil==0){ 
+    AliWarning("Invalid pointer to ROOT file");
+    return kFALSE;    
+  }  
+  Char_t hisnam[20];
+  fil->cd();
+  sprintf(hisnam,"hdrsp%02dc%02ds%d",fDDL,fCarlos,fSide);
+  TH1F hdsp(hisnam,"",kInjPads,-0.5,kInjPads-0.5);
+  if(fNEvents==0){
+    AliWarning("Zero analyzed events");
+    return kFALSE;    
+  }  
+    
+  for(Int_t i=0;i<kInjPads;i++){ 
+    hdsp.SetBinContent(i+1,GetMeanDriftSpeed(i));    
+    Double_t rms=GetRMSDriftSpeed(i);
+    Double_t err=0.;
+    if(rms>0.) err=rms/TMath::Sqrt(fNEvents);
+    hdsp.SetBinError(i+1,err);
+  }
+  hdsp.Write();
+  return kTRUE;    
+}