WebSVN – f9daq – Diff – /sipmScan/examples/sipm.C


#include "TROOT.h"
#include "TFile.h"
#include "TBenchmark.h"
#include "TH1F.h"
#include "TH2F.h"
#include "TCanvas.h"
#include "TStyle.h"
#include "TPad.h"
#include "TF1.h"
#include "TGraph.h"
#include "TSpectrum.h"
#include "stdio.h"
 
#include "include/RTUtil.h"
 
double getNoise(TH2F*, int, int);
 
int sipm(char filename[256] = "test", char plopt[256]="all", int chXstart=0, int chXend=7, int chYstart=0, int chYend=7, bool debug = false)
{
  const int c_nChannels = 64;
  const double c_xOffset = 0; // mm
  const double c_yOffset = 0;
 
  int map[8][8]={{32,34,53,55,40,42,61,63},
                 {48,50,37,39,56,58,45,47},
                 {33,35,52,54,41,43,60,62},
                 {49,51,36,38,57,59,44,46},
                 {17,19,4,6,25,27,12,14},
                 {1,3,20,22,9,11,28,30},
                 {16,18,5,7,24,26,13,15},
                 {0,2,21,23,8,10,29,31}
                };
 
  char fnameroot[256];
  TFile* rootfile;
        sprintf(fnameroot, "root/%s.root", filename);
        rootfile = (TFile *) gROOT->FindObject(filename);
        if(rootfile==NULL) rootfile = new TFile(fnameroot);
        if(rootfile==NULL) {
          printf("Cannot open root file %s!!!\n",fnameroot);
          return(0);
        }
 
        // set draw style
        RTSetStyle(gStyle);
 
  if( strstr(plopt, "all") != NULL ) {
    TCanvas *canvas2 = new TCanvas("canvas2","Hits x;;",2000,2000);
    TCanvas *canvas3 = new TCanvas("canvas3","Hits y;;",2000,2000);
    canvas2->Divide(8,8);
    canvas3->Divide(8,8);
    TH1F* h_hitsx;
    TH1F* h_hitsy;
    for(int i=0; i<c_nChannels; i++) {
      canvas2->cd(i+1);
      char hname[128];
      sprintf(hname, "hnhitsx%d", i);
      h_hitsx = (TH1F*)rootfile->Get(hname);
      h_hitsx->Draw();
      canvas3->cd(i+1);
      sprintf(hname, "hnhitsy%d", i);
      h_hitsy = (TH1F*)rootfile->Get(hname);
      h_hitsy->Draw();  
    }
  }
 
  if( strstr(plopt, "x") != NULL ) {
    TCanvas *canvas10 = new TCanvas("canvas10","Ch x;;",500,500);
    TH1F* h_hitsx;
    canvas10->cd();
    char hname[128];
    sprintf(hname, "hnhitsx%d", chXstart);
    h_hitsx = (TH1F*)rootfile->Get(hname);
    h_hitsx->Draw();
  }
 
  if( strstr(plopt, "y") != NULL ) {
    TCanvas *canvas11 = new TCanvas("canvas11","Ch x;;",500,500);
    TH1F* h_hitsy;
    canvas11->cd();
    char hname[128];
    sprintf(hname, "hnhitsy%d", chXstart);
    h_hitsy = (TH1F*)rootfile->Get(hname);
    h_hitsy->Draw();
  }
 
  if( strstr(plopt, "share") != NULL ) {
   /*TCanvas *canvas4 = new TCanvas("canvas1","canvas1",1000,1000);
   int nChannels = chYend-chYstart+1;
   int ncols = nChannels/2;
   printf("nch %d nch\\2 %d\n", nChannels, ncols);
   canvas4->Divide(2,ncols);
   TH1F* h_hitsy;
   for(int i=chYstart; i<=chYend; i++){
     canvas4->cd(i-chYstart+1);
     char hname[128];
     int chPosition = map[0][i];
     sprintf(hname, "hnhitsy%d", chPosition);
     h_hitsy = (TH1F*)rootfile->Get(hname);
     h_hitsy->Draw();
   }*/
   
   TCanvas *canvas4 = new TCanvas("canvas4","canvas4",500,500);
   canvas4->cd();
   for(int i=chXstart; i<=chXend; i++) {
     TH1F* h_hitsx;
     char hname[128];
     int chPosition = map[i][chYstart];
     sprintf(hname, "hnhitsx%d", chPosition);
     h_hitsx = (TH1F*)rootfile->Get(hname);
     h_hitsx->SetTitle("Scan X;x [mm]; Entries");
     h_hitsx->GetYaxis()->SetTitleOffset(1.3);
     h_hitsx->SetStats(0);
     if (i == chXstart)
      h_hitsx->Draw();
     else {
      h_hitsx->SetLineColor(i+1);
      h_hitsx->Draw("same");
     }
   }
   //sprintf(fullname, "ps/%s_Yshare.eps", filename);
         //canvas4->SaveAs(fullname);
   
   TCanvas *canvas5 = new TCanvas("canvas5","canvas5",500,500);
   canvas5->cd();
   for(int i=chYstart; i<=chYend; i++) {
     TH1F* h_hitsy;
     char hname[128];
     int chPosition = map[chXstart][i];
     sprintf(hname, "hnhitsy%d", chPosition);
     h_hitsy = (TH1F*)rootfile->Get(hname);
     h_hitsy->SetTitle("Scan Y;y [mm]; Entries");
     h_hitsy->GetYaxis()->SetTitleOffset(1.3);
     h_hitsy->SetStats(0);
     if (i == chYstart)
      h_hitsy->Draw();
     else {
      h_hitsy->SetLineColor(i+1);
      h_hitsy->Draw("same");
     }
   }
   //sprintf(fullname, "ps/%s_Yshare.eps", filename);
         //canvas5->SaveAs(fullname);
  }
 
  /** Draw one channel in x and y
    * Without and with the noise subtraction
    */
  if (strstr(plopt, "noise") != NULL) {
    TCanvas *canvas51 = new TCanvas("canvas51","canvas51",500,500);
    canvas51->cd();
   
    // Get the filled histogram from scan
    TH1F* h_x;
    char name[32];
    sprintf(name, "hnhitsx%d", chXstart);
    h_x = (TH1F*)rootfile->Get(name);
    h_x->DrawCopy();
   
    TH1F* h_y;
    sprintf(name, "hnhitsy%d", chXstart);
    h_y = (TH1F*)rootfile->Get(name);
   
    // Create and fill corrected histogram
    Int_t binsX = h_x->GetXaxis()->GetNbins();
    if(debug) printf("nBins: %d\n", binsX);
    //Double_t xLowUser  = h_x->GetXaxis()->GetBinLowEdge(1);
    //Double_t xUpUser = h_x->GetXaxis()->GetBinUpEdge(binsX);
    Double_t xLowUser = h_x->GetXaxis()->GetXmin();
    Double_t xUpUser = h_x->GetXaxis()->GetXmax();
    TH1F* h_xCorrected = new TH1F("h_xCorrected",";;",binsX, xLowUser, xUpUser);
    if (debug) printf("xLow %f xUp %f\n",xLowUser,xUpUser);
    double noise = h_x->GetBinContent(2);
    for (int jk = 0; jk < binsX; jk++) {
      double signal = h_x->GetBinContent(jk+1);
      signal -= noise;
      double x = h_x->GetXaxis()->GetBinCenter(jk+1);
      h_xCorrected->Fill(x, signal);
    }
    h_xCorrected->SetLineColor(2);
    h_xCorrected->DrawCopy("same");
   
    //Create and fill corrected histogram
    Int_t binsY = h_y->GetXaxis()->GetNbins();
    Double_t yLowUser = h_y->GetXaxis()->GetXmin();
    Double_t yUpUser = h_y->GetXaxis()->GetXmax();
    TH1F* h_yCorrected = new TH1F("h_yCorrected",";;",binsY, yLowUser, yUpUser);
    noise = h_y->GetBinContent(2);
    for (int jk = 0; jk < binsY; jk++) {
      double signal = h_y->GetBinContent(jk+1);
      signal -= noise;
      double x = h_y->GetXaxis()->GetBinCenter(jk+1);
      h_yCorrected->Fill(x, signal);
    }
    TCanvas *canvas52 = new TCanvas("canvas52","canvas52",500,500);
    canvas52->cd();
    h_y->DrawCopy();
    h_yCorrected->SetLineColor(2);
    h_yCorrected->DrawCopy("same");
  }
 
  /** Draws the signal from 8 channels in x-row
    * for one specific y bin, so the background and cross-talk
    * can be estimated.
    * Draws also a 2d scan of these channels.
    */
  if (strstr(plopt, "line") != NULL) {
    TCanvas* canvas6 = new TCanvas("canvas6","canvas6",500,500);
    canvas6->cd(0);
    gStyle->SetOptStat(0);
   
    TH2F* h0 = (TH2F*) rootfile->Get("h2d0");
          Int_t binsX = h0->GetXaxis()->GetNbins();
    Int_t minX  = h0->GetXaxis()->GetFirst();
    Int_t maxX  = h0->GetXaxis()->GetLast()+1;
    Int_t binsY = h0->GetYaxis()->GetNbins();
    Int_t minY  = h0->GetYaxis()->GetFirst();
    Int_t maxY  = h0->GetYaxis()->GetLast()+1;
    Double_t xLowUser  = h0->GetXaxis()->GetBinLowEdge(minX);
    Double_t xUpUser = h0->GetXaxis()->GetBinUpEdge(maxX);
    Double_t yLowUser  = h0->GetYaxis()->GetBinLowEdge(minY);
    Double_t yUpUser = h0->GetYaxis()->GetBinUpEdge(maxY);
    if (debug) printf("xLow %f xUp %f\n",xLowUser,xUpUser);
   
    //! 1-dimension position in x vs. hits
    TH2F* h[8];
    TH1F* h_line[8];
    for(int j=0; j<8; j++) {
      h_line[j] = new TH1F("h_line", "h_line", binsX, xLowUser, xUpUser);
    }
   
    for(int j=chXstart; j<=chXend; j++) {
      int chPosition = map[j][chYstart];
      char hname[128];
      sprintf(hname, "h2d%d", chPosition);  
      int histogram = j;
      h[histogram] = (TH2F *) rootfile->Get(hname);
      int noise = getNoise(h[histogram], 1, 160);
      for(int k=minX; k<=maxX; k++) {
        int l=chYstart*20+12;
        //for(int l=12; l<=16; l++) {
          double signal = h[histogram]->GetBinContent(k,l);
          //signal -= noise;
          //signal /= 5*10000.0;
          double eta = -log(1 - signal);
          double x = xLowUser + k*(xUpUser-xLowUser)/double(binsX);
          //double y = l*(yUpUser-yLowUser)/double(binsY);
          h_line[j]->Fill(x-c_xOffset, signal);
        //}
      }
      if (j == chXstart) {
        h_line[j]->SetTitle("SiPM#2 w/o noise subtraction;x[mm];Hits");
        //h_line[j]->GetYaxis()->SetRangeUser(-0.05, 0.3);
        //h_line[j]->GetYaxis()->SetRangeUser(-50, 2500);
        h_line[j]->Draw("");
      }
      else {
        h_line[j]->SetLineColor(j+1);
        h_line[j]->Draw("same");
      }
    }
   
   
    //! 2d scan
    TCanvas* canvas61 = new TCanvas("canvas61","canvas61",8*200,300);
    canvas61->cd();
    TH2F* h_corrected = new TH2F("h_corrected","h_corrected",binsX,xLowUser,xUpUser, binsY,yLowUser,yUpUser);
    for(int i=chXstart; i<=chXend; i++) {
      //int canvasPosition = nX*(i-chYstart)+(j-chXstart)+1;
      //int canvasPosition = nX*(chYend-i)+chXstart+1;
      //if (debug) printf("canvas %d\n",canvasPosition);
        int chPosition = map[i][chYstart];
        char hname[128];
              sprintf(hname, "h2d%d", chPosition);  
              int histogram = i;
              h[histogram] = (TH2F *) rootfile->Get(hname);
              int noise = getNoise(h[histogram], 1, 100);
             
              for(int k=minX; k<=maxX; k++) {
          for(int l=minY; l<=maxY; l++) {
            int signal = h[histogram]->GetBinContent(k,l); // detected
            //p /= 10000.;
            //double p0 = 1.0 - p; // events with zero photons
            //double eta = (-log(p0) * p0 ) / (1-p0-0.00001);
            //double eta = -log(p0);
            //printf("p=%f p0=%f log(p0)=%f eta=%f\n",p,p0,log(p0),eta);      
            //double signal = ((p - noise) > 0.1) ? (p-noise) : 0.1;
            double p = signal - noise;
            p /= 10000.0;
            double eta = -log(1 - p);
            //double x = k*(xUpUser-xLowUser)/double(binsX);
            //double y = l*(yUpUser-yLowUser)/double(binsY);
            double x = h[histogram]->GetXaxis()->GetBinCenter(k);
            double y = h[histogram]->GetYaxis()->GetBinCenter(l);
            h_corrected->Fill(x-c_xOffset, y-c_yOffset, eta);
          }
        }
    }
    h_corrected->SetTitle("SiPM#2 n_pe = - ln(P0);x[mm];y[mm]");
    h_corrected->GetZaxis()->SetRangeUser(-0.05,0.30);
    h_corrected->Draw("colz");
   
  }
 
  /** Draws the sum of the channels
    * Each channel is a 2d plot
    * Intended for the study of 1 channel
    *
    * Input: scanned channel coordinates (x,y)
    */
  if (strstr(plopt, "2d") != NULL) {
   
    int nX = 3;
    int nY = 3;
    TCanvas* canvas7 = new TCanvas("canvas7","canvas7", nX*400,nY*400);
    printf("nx %d ny %d\n",nX,nY);
    canvas7->Divide(nX,nY);
    for(int i=chXend-1; i<=chXend+1; i++) {
      for(int j=chXstart-1; j<=chXstart+1; j++) {
      //int canvasPosition = nX*(i-chYstart)+(j-chXstart)+1;
      int canvasPosition = nX*(chXend+1-i) + (j-chXstart+1) +1;
      if (debug) printf("canvas %d\n",canvasPosition);
        canvas7->cd(canvasPosition);
        char hname[128];
        int chPosition = map[j][i];
        sprintf(hname, "h2d%d", chPosition);
        TH2F* h_2d = (TH2F*)rootfile->Get(hname);
        h_2d->Draw("colz");
      } //x
    }
   
    // Number of photoelectrons - Poissonian correction
    TCanvas* canvas8 = new TCanvas("canvas8","canvas8", 1000,1000);
    canvas8->cd();
    gStyle->SetOptStat(0);
      char hname[128];
      int chPosition = map[chXstart][chXend];
      sprintf(hname, "h2d%d", chPosition);
      TH2F* h_2d = (TH2F*)rootfile->Get(hname);
 
      Int_t binsX = h_2d->GetXaxis()->GetNbins();
      Int_t minX  = h_2d->GetXaxis()->GetFirst();
      Int_t maxX  = h_2d->GetXaxis()->GetLast()+1;
      Int_t binsY = h_2d->GetYaxis()->GetNbins();
      Int_t minY  = h_2d->GetYaxis()->GetFirst();
      Int_t maxY  = h_2d->GetYaxis()->GetLast()+1;
      Double_t xLowUser  = h_2d->GetXaxis()->GetXmin();
      Double_t xUpUser   = h_2d->GetXaxis()->GetXmax();
      Double_t yLowUser  = h_2d->GetYaxis()->GetXmin();
      Double_t yUpUser =   h_2d->GetYaxis()->GetXmax();
      if (debug) printf("xLow %f xUp %f\n",xLowUser,xUpUser);
      TH2F* h_corrected = new TH2F("h_corrected","h_corrected",binsX, xLowUser, xUpUser, binsY, yLowUser, yUpUser);
      //TH2F* h_corrected = new TH2F("h_corrected","h_corrected",binsX, minX, maxX, binsY, minY, maxY);
     
      double noise = getNoise(h_2d, 1, 70);
      if(debug) printf("Noise = %f\n", noise);
      for(int k=minX; k<=maxX; k++) {
        for(int j=minY; j<=maxY; j++) {
          double signal = h_2d->GetBinContent(k,j); // detected
          //double p = ((signal - noise) > 1) ? (signal-noise) : 1;
          double p = signal - noise;
          p /= 10000.;
          double p0 = 1.0 - p; // events with zero photons
          //double eta = (-log(p0) * p0 ) / (1-p0-0.00001);
          double eta = -log(p0); // constant of the poissonian statistics
          if (debug) printf("p=%f p0=%f log(p0)=%f eta=%f\n",p,p0,log(p0),eta);
          //double x = xLowUser + k*(xUpUser - xLowUser) / double(binsX);
          double x = h_2d->GetXaxis()->GetBinCenter(k);
          //double y = yLowUser + j*(yUpUser-yLowUser)/double(binsY);
          double y = h_2d->GetYaxis()->GetBinCenter(j);
          if (debug) printf("x=%f y=%f\n", x, y);
          h_corrected->Fill(x + c_xOffset, y + c_yOffset, eta);
        }
       }
      h_corrected->SetTitle("n_pe = - ln P(0);x[mm];y[mm]");
      //h_corrected->SetTitle(";x[mm];y[mm]");
      gStyle->SetPalette(52,0);
      h_corrected->GetZaxis()->SetRangeUser(-0.05,0.7);
      h_corrected->SetContour(50);
      h_corrected->Draw("colz");
     
      // collection efficiency
      int nPoints =0;
      double efficiency=0;
      for (int i=18; i<=58; i++) {
        for (int j=19; j<=59; j++) {
          double signal = h_corrected->GetBinContent(i,j);
          if(debug) printf("signal %f\n",signal);
          efficiency += signal;
          nPoints++;
        }
      }  
    printf("Signal sum = %f\n   # of points = %d\n",efficiency,nPoints);
  }
 
  /** Draws the sum of channel signals
    * Each channel is a 2d ('h2d') histogram
    * Suitable for 8x8 chs scan
    */
  if( strstr(plopt, "sum") != NULL ) {
    int nX = chXend - chXstart + 1;
    int nY = chYend - chYstart + 1;
          TCanvas* canvas12 = new TCanvas("canvas12","c2",8*200, 8*200);
          canvas12->cd();
          gStyle->SetOptStat(0);
 
    // final histogram parameters
    TH2F* h0 = (TH2F*) rootfile->Get("h2d0");
          Int_t binsX = h0->GetXaxis()->GetNbins();
    Int_t minX  = h0->GetXaxis()->GetFirst();
    Int_t maxX  = h0->GetXaxis()->GetLast()+1;
    Int_t binsY = h0->GetYaxis()->GetNbins();
    Int_t minY  = h0->GetYaxis()->GetFirst();
    Int_t maxY  = h0->GetYaxis()->GetLast()+1;
    Double_t xLowUser  = h0->GetXaxis()->GetBinLowEdge(minX);
    Double_t xUpUser = h0->GetXaxis()->GetBinUpEdge(maxX);
    Double_t yLowUser  = h0->GetYaxis()->GetBinLowEdge(minY);
    Double_t yUpUser = h0->GetYaxis()->GetBinUpEdge(maxY);
    if (debug) printf("xLow %f xUp %f\n",xLowUser,xUpUser);
    TH2F* h_corrected = new TH2F("h_corrected","h_corrected",binsX,xLowUser,xUpUser, binsY,yLowUser,yUpUser);
    TH2F* h[nX*nY];
   
    // 2d histogram noise subtraction and poisson scaling
    for(int i=chYstart; i<=chYend; i++) {
      for(int j=chXstart; j<=chXend; j++) {
        int chPosition = map[j][i];
        char hname[128];
              sprintf(hname, "h2d%d", chPosition);  
              int histogram = nX*(i-chYstart)+(j-chXstart);
              h[histogram] = (TH2F *) rootfile->Get(hname);
              int noise = getNoise(h[histogram], 1, 170);
              if (debug) printf("noise: %d\n",noise);
              for(int k=minX; k<=maxX; k++) {
          for(int l=minY; l<=maxY; l++) {
            int signal = h[histogram]->GetBinContent(k,l); // detected
            //double p = ((signal - noise) > 0.1) ? (signal-noise) : 0.1;
            double p = signal - noise;
            p /= 10000.;
            double p0 = 1.0 - p; // events with zero photons
            //double eta = (-log(p0) * p0 ) / (1-p0-0.00001);
            double eta = -log(p0);
            //printf("p=%f p0=%f log(p0)=%f eta=%f\n",p,p0,log(p0),eta);
            double x = k*(xUpUser-xLowUser)/double(binsX);
            double y = l*(yUpUser-yLowUser)/double(binsY);
            h_corrected->Fill(x-c_xOffset, y-c_yOffset, eta);
          }
        }    
     
      }
    }
 
    h_corrected->SetTitle("SiPM#2 n_p.e.;x[mm];y[mm]");
    h_corrected->GetZaxis()->SetRangeUser(-0.05,.30);
    h_corrected->Draw("colz");
   
    TCanvas* canvas13 = new TCanvas("canvas13","canvas13",600,300);
    canvas13->Divide(2);
    canvas13->cd(1);
    h[16]->Draw("colz");
    canvas13->cd(2);
    h[8]->Draw("colz");
  }
 
  /** Draws the beam profile and fits it with error function
    * on some background function
    */
  if (strstr(plopt, "beam") != NULL) {
 
  TCanvas* canvas9 = new TCanvas("canvas9","canvas9", 500,500);
  canvas9->cd();
  char hname[128];
  sprintf(hname, "hnhitsx%d", 36);
  TH1F* h_laser = (TH1F*)rootfile->Get(hname);
  h_laser->Draw();
  h_laser->SetStats(1);
 
  TF1* err = new TF1("err","[0]+[1]*TMath::Erf((x-[2])/[3])",17.02,17.30);
  err->SetParameter(0,2500);
  err->SetParameter(1, h_laser->GetMaximum());
  err->SetParameter(2, h_laser->GetBinCenter(h_laser->GetMaximumBin()));
  err->SetParameter(3, 0.001);
  h_laser->Fit(err,"qr");
  h_laser->Fit(err,"lr");
  double sigma = err->GetParameter(3);
  printf("sigma = %2.0f um,     FWHM = %2.0f um\n", sigma*1000, 2.35*sigma*1000);
  }
 
  if (strstr(plopt, "map") != NULL) {
    TCanvas* canvas1 = new TCanvas("canvas1","canvas1",1000,1000);
    canvas1->cd();
    TH2I* h_map = new TH2I("h_map","h_map",8,-0.5,7.5,8,-0.5,7.5);
    for (int i=7; i>=0; i--) {
      //for (int j=7; j>=0; j--) printf("(%d, %d) ", j,i);
      for (int j=7; j>=0; j--) {
        printf("%2d (%d %d)\n", map[j][i], j*10080+5040, i*10080+5040);
        h_map->Fill(j,i, map[j][i]);
      }
      printf("\n");
    }
    gStyle->SetOptStat(0);
    h_map->Draw("text");  
  }
   
  return(0);
}
 
/** Function calculates the noise from one channel
  * it runs through the bins along x and returns the average value
  */
double getNoise(TH2F* histogram, int yStart, int yEnd)
{
  double noise=0;
  int count=0;
  for(int j=yStart; j<yEnd; j++) {
    double value = histogram->GetBinContent(j,2);
    //if (noise < value) noise = value;
    noise += value;
    count++;
    }
  return (noise/double(count));
}
 
 
Subversion Repositories f9daq

(root)/sipmScan/examples/sipm.C – Rev 38 → 40
