#include <TProfile.h>
#include <TF1.h>
+using std::cout;
+using std::endl;
ClassImp(AliT0CalibWalk)
//________________________________________________________________
{
//
}
-//________________________________________________________________
-void AliT0CalibWalk::SetWalk(Int_t ipmt)
-{
- //read QTC walk graph from external file
-
- Int_t mv, ps;
- Int_t x[70000], y[70000], index[70000];
- Float_t time[10000],amplitude[10000];
- string buffer;
- Bool_t down=false;
-
- const char * filename = gSystem->ExpandPathName("$ALICE_ROOT/T0/data/CFD-Amp.txt");
- ifstream inFile(filename);
- if(!inFile) AliError(Form("Cannot open file %s !",filename));
-
- Int_t i=0;
- while(getline(inFile,buffer)){
- inFile >> ps >> mv;
-
- x[i]=ps; y[i]=mv;
- i++;
- }
- inFile.close();
- // cout<<" number of data "<<i<<endl;
-
- TMath::Sort(i, y, index,down);
- Int_t amp=0, iin=0, isum=0, sum=0;
- Int_t ind=0;
- for (Int_t ii=0; ii<i; ii++)
- {
- ind=index[ii];
- if(y[ind] == amp)
- {
- sum +=x[ind];
- iin++;
- }
- else
- {
- if(iin>0)
- time[isum] = Float_t (sum/(iin));
- else
- time[isum] =Float_t (x[ind]);
- amplitude[isum] = Float_t (amp);
- amp=y[ind];
- iin=0;
- isum++;
- sum=0;
- }
- }
-
- inFile.close();
-
- TGraph* gr = new TGraph(isum, amplitude, time);
- fWalk.AddAtAndExpand(gr,ipmt);
-
- //should be change to real
- Double_t xq[10] = { 1220, 1370, 1542, 1697, 1860, 2023,2171,2331,2495,2684};
- Double_t yq[10] = {1,2,3,4,5,6,7,8,9,10};
- TGraph* gr1 = new TGraph(10, xq, yq);
- fQTC.AddAtAndExpand(gr1,ipmt);
-}
-
-//________________________________________________________________
+//________________________________________________________________
-void AliT0CalibWalk::SetAmpLEDRec(Int_t ipmt)
-{
- // read LED walk from external file
- Float_t mv, ps;
- Float_t x[100], y[100];
- string buffer;
-
- const char * filename = gSystem->ExpandPathName("$ALICE_ROOT/T0/data/CFD-LED.txt");
- ifstream inFile(filename);
- if(!inFile) {AliError(Form("Cannot open file %s !",filename));}
-
- inFile >> mv>>ps;
- Int_t i=0;
-
- while(getline(inFile,buffer)){
- x[i]=mv; y[i]=ps;
- inFile >> mv >> ps;
- i++;
- }
- inFile.close();
- Float_t y1[100], x1[100];
- for (Int_t ir=0; ir<i; ir++){
- y1[ir]=y[i-ir]; x1[ir]=x[i-ir];}
- TGraph* gr = new TGraph(i,y1,x1);
- fAmpLEDRec.AddAtAndExpand(gr,ipmt);
- //should be change to real
- Double_t xq[10] = { 411, 412,413,415,417,419,422,428,437,452};
- Double_t yq[10] = {1,2,3,4,5,6,7,8,9,10};
- TGraph* gr1 = new TGraph(10, xq, yq);
- fAmpLED.AddAtAndExpand(gr1,ipmt);
-
-}
-
-//________________________________________________________________
-
-void AliT0CalibWalk::MakeWalkCorrGraph(const char *laserFile)
+Bool_t AliT0CalibWalk::MakeWalkCorrGraph(const char *laserFile)
{
//make walk corerction for preprocessor
- Int_t nmips=14;
+ 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();
-
- Float_t x1[14], y1[14];
- Float_t x2[14], y2[14];
-
- Float_t mips[14] = {1.,2,3,4,5,6,7,8,9,10,20,30,40,50};
-
- Float_t xx1[14],yy1[14], xx[14];
- for (Int_t ii=0; ii<14; ii++)
- { x1[ii]=0; y1[ii]=0; x2[ii]=0; y2[ii]=0; }
+ 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;
- TH2F* hCFDvsQTC[24][14]; TH2F* hCFDvsLED[24][14];
+ 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 qtc = Form("CFDvsQTC%i_%i",i+1,im+1);
- TString led = Form("CFDvsLED%i_%i",i+1,im+1);
- hCFDvsQTC[i][im] = (TH2F*) gFile->Get(qtc.Data()) ;
- hCFDvsLED[i][im] = (TH2F*) gFile->Get(led.Data());
+ 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);
- if(!hCFDvsQTC[i][im] || !hCFDvsLED[i][im])
- AliWarning(Form(" no walk correction data in LASER DA for channel %i for amplitude %f MIPs",i,mips[im]));
-
- Float_t qtc0 = hCFDvsQTC[i][0]->GetMean(2);
- if(hCFDvsQTC[i][im])
- {
- x1[im] = hCFDvsQTC[i][im]->GetMean(1);
- y1[im] = hCFDvsQTC[i][im]->GetMean(2) - qtc0;
+ 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();
+
+ Int_t maxBin = hCFD->GetMaximumBin();
+ Double_t meanEstimate = hCFD->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - cfdmean) > 20 ) cfdmean = meanEstimate;
+ 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;
}
- Float_t led0 = hCFDvsLED[i][0]->GetMean(2);
- if( hCFDvsLED[i][im]){
- x2[im] = hCFDvsLED[i][im]->GetMean(1);
- y2[im] = hCFDvsLED[i][im]->GetMean(2) - led0;
+ }
+
+ 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;
}
- xx[im]=mips[im];
+ 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);
- TGraph *grwalkled = new TGraph (nmips,x2,y2);
- fWalk.AddAtAndExpand(grwalkqtc,i);
- fAmpLEDRec.AddAtAndExpand(grwalkled,i);
-
- //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);
+ 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
- //fit amplitude graphs
- Double_t parled [2], parqtc[2];
+ return ok;
+}
- TF1 *fuled = new TF1("fuled","expo",x1[0],x1[nmips]);
- TF1 *fuqtc = new TF1 ("fuqtc","pol1",x1[0],x1[nmips]);
- grqtc->Fit("fuqtc","Q"," ",x1[0],x1[nmips]);
- grampled->Fit("fuled","Q"," ",xx1[0],xx1[nmips]);
- fuled->GetParameters(&parled[0]);
- fuqtc->GetParameters(&parqtc[0]);
+void AliT0CalibWalk::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma)
+{
- for(Int_t ipar=0; ipar<2; ipar++) {
- SetQTCpar(i,ipar,parqtc[ipar]);
- SetAmpLEDpar(i,ipar,parled[ipar]);
- // cout<<" pars :::: "<<i<<" "<<ipar<<" qtc "<<parqtc[ipar]<<" led "<<parled[ipar]<<endl;
- }
+ const double window = 2.; //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");
- if(i==23){
- cout<<"Graphs created..."<<endl;
- }
- }
- } //if gFile exits
-}
+ mean = (Float_t) fit->GetParameter(1);
+ sigma = (Float_t) fit->GetParameter(2);
+ printf(" mean %f max %f sigma %f \n",mean, meanEstimate , sigma);
+ delete fit;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff