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Ignore whitespace Rev 34 → Rev 35

/sipmScan/examples/thresholdScan.C
0,0 → 1,513
#include "TROOT.h"
#include "TFile.h"
#include "TBenchmark.h"
#include "TH1F.h"
#include "TH2F.h"
#include "TH3F.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 thresholdScan(char filename[256] = "test", char plopt[256]="th", int chXstart=0, int chXend=7, int chYstart=0, int chYend=7, bool debug = false)
{
const int c_nChannels = 64;
const double c_xOffset = 1; // mm
const double c_yOffset = 0.7;
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}
};
RTSetStyle(gStyle);
// open the file with histograms
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);
}
 
if (strstr(plopt, "th") != NULL) {
TCanvas* canvas1 = new TCanvas("canvas1","",800,800);
canvas1->cd();
//gPad->SetLogz();
//canvas1->SetLogz();
TH2F* h_threshold = (TH2F*) rootfile->Get("h_threshold");
h_threshold->SetTitleOffset(1.5,"y");
//h_threshold->GetZaxis()->SetRangeUser(0,1000);
h_threshold->SetContour(20);
h_threshold->Draw("colz");
TCanvas* canvas2 = new TCanvas("canvas2","",1600,800);
canvas2->Divide(2);
TH1D* h_projection1 = h_threshold->ProjectionY("Ch 37",38,38);
canvas2->cd(1);
//h_projection1->GetYaxis()->SetRangeUser(0,1000);
//gPad->SetLogy();
h_projection1->Draw();
TH1D* h_projection2 = h_threshold->ProjectionY("Ch 38",39,39);
canvas2->cd(2);
//gPad->SetLogy();
h_projection2->Draw();
}
if(strstr(plopt, "tdc") != NULL) {
TCanvas *canvas21 = new TCanvas("canvas21","canvas21",1600,800);
TH3F* h0 = (TH3F*) rootfile->Get("h_correctedTDC");
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;
Int_t binsZ = h0->GetZaxis()->GetNbins();
Int_t minZ = h0->GetZaxis()->GetFirst();
Int_t maxZ = h0->GetZaxis()->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);
canvas21->Divide(2);
//h0->Draw();
canvas21->cd(1);
//h0->Project3D("xy")->Draw("colz");
//canvas21->cd(2);
//h0->Project3D("yz")->Draw("colz");
//canvas21->cd(3);
TH2D* h_correctedTDC = (TH2D*) h0->Project3D("xz");
//h0->GetZaxis()->SetRangeUser(-5,5);
//h0->Project3D("xzo")->Draw("colz");
h_correctedTDC->SetTitle("; t [ns]; Channel");
h_correctedTDC->Draw("colz");
/*
TH1F* tdc1 = new TH1F("tdc1",";TDC [ns];Events",binsZ, minZ, maxZ);
//for(int j=minY; j<maxY; j++) {
for(int k=minZ; k<maxZ; k++) {
double signal = h0->GetBinContent(1,1,k);
tdc1->Fill(k,signal);
//}
}
tdc1->Draw();
*/
TH2D* h_timeWalk = (TH2D*) h0->Project3D("zy");
canvas21->cd(2);
h_timeWalk->SetTitle(";Threshold [V]; t [ns]");
h_timeWalk->Draw("colz");
}
if(strstr(plopt,"16") != NULL)
{
TH2F* h_threshold = (TH2F*) rootfile->Get("h_threshold");
TCanvas* canvas = new TCanvas("canvas","",1600,1600);
canvas->cd();
TVirtualPad *main = new TPad("main","main",0,0,1,1,10,1);
main->Draw();
main->Divide(4,4);
for(int i=chXstart; i<chXend; i++) {
for(int j=chYstart; j<chYend; j++) {
int channel = map[i][j];
TH1D* h_projection = h_threshold->ProjectionY("",channel+1,channel+1);
int canvasPosition = i-chXend+4*(chYend-j)+1;
printf(" %d ", canvasPosition);
main->cd(canvasPosition);
char name[128];
sprintf(name,"Channel %d",channel);
h_projection->SetTitle(name);
h_projection->DrawCopy();
}
}
printf("\n");
}
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("colz");
}
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);
}
/** 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 = 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);
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
*/
if (strstr(plopt, "2d") != NULL) {
int nX = chXend - chXstart + 1;
int nY = chYend - chYstart + 1;
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=chYstart; i<=chYend; i++) {
for(int j=chXstart; j<=chXend; j++) {
//int canvasPosition = nX*(i-chYstart)+(j-chXstart)+1;
int canvasPosition = nX*(chYend-i)+(j-chXstart)+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[1][2];
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()->GetBinLowEdge(minX);
Double_t xUpUser = h_2d->GetXaxis()->GetBinUpEdge(maxX);
Double_t yLowUser = h_2d->GetYaxis()->GetBinLowEdge(minY);
Double_t yUpUser = h_2d->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);
double noise = getNoise(h_2d, 1, 89);
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 = k*(xUpUser-xLowUser)/double(binsX);
double y = j*(yUpUser-yLowUser)/double(binsY);
h_corrected->Fill(x+3,y+8, eta);
}
}
h_corrected->SetTitle("n_pe = - ln P(0);x[mm];y[mm]");
h_corrected->GetZaxis()->SetRangeUser(-0.05,0.3);
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[9];
// 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, signal);
}
}
}
}
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");
}
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));
}
/sipmScan/examples/threshold64.C
0,0 → 1,43
 
{
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}
};
TCanvas* canvas = new TCanvas("canvas","",1200,1200);
canvas->cd();
//canvas->Divide(4,4);
TVirtualPad *main = new TPad("main","main",0,0,1,1,10,1);
main->Draw();
main->Divide(4,4);
TH1F* h_thrProj[16];
for(int i=0; i<4; i++) {
for(int j=0; j<4; j++) {
int channel = map[i][j];
printf("%d ", channel);
TH1D* histogram = h_threshold->ProjectionY("",channel+1,channel+1);
int nBins = histogram->GetXaxis()->GetNbins();
char name[128];
int current = i*4+j;
sprintf(name,"histo%d",current);
//h_thrProj[i*4+j] = (TH1F*)gROOT->FindObject(name);
if (h_thrProj[i*4+j]) delete h_thrProj[i*4+j];
h_thrProj[current] = new TH1F(name, name, nBins,0,nBins);
for(int k=0; k< nBins; k++){
int signal = histogram->GetBinContent(k);
h_thrProj[current]->Fill(k,signal);
}
int canvasPosition = i+4*(3-j)+1;
main->cd(canvasPosition);
//printf("%d \n", canvasPosition);
h_thrProj[current]->Draw();
}
}
 
}
/sipmScan/examples/sipm.C
0,0 → 1,538
#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
gStyle->SetOptStat("ne");
gStyle->SetPalette(1, 0);
gStyle->SetPaperSize(TStyle::kA4);
gStyle->SetStatBorderSize(1);
gStyle->SetFrameBorderMode(0);
gStyle->SetFrameFillColor(0);
gStyle->SetCanvasBorderMode(0);
gStyle->SetPadBorderMode(0);
gStyle->SetPadColor(0);
gStyle->SetCanvasColor(0);
gStyle->SetStatColor(0);
gStyle->SetOptFit(11);
gStyle->SetOptStat();
gStyle->SetPadRightMargin(0.15);
gStyle->SetPadLeftMargin(0.12);
//gStyle->SetTitleYOffset(1.4);
 
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]");
h_corrected->GetZaxis()->SetRangeUser(-0.01,0.5);
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));
}
/sipmScan/examples/tdc.C
0,0 → 1,109
#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"
 
int tdc(char filename[256] = "test", int chX=0, int chY=0, double rangeLeft=-16, double rangeRight=16, bool debug = false)
{
//const int c_nChannels = 64;
//const double c_xOffset = 2.2; // mm
//const double c_yOffset = 2.3;
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
gStyle->SetPalette(1, 0);
gStyle->SetPaperSize(TStyle::kA4);
gStyle->SetStatBorderSize(1);
gStyle->SetFrameBorderMode(0);
gStyle->SetFrameFillColor(0);
gStyle->SetCanvasBorderMode(0);
gStyle->SetPadBorderMode(0);
gStyle->SetPadColor(0);
gStyle->SetCanvasColor(0);
gStyle->SetStatColor(0);
gStyle->SetOptFit(11);
gStyle->SetOptStat(0);
gStyle->SetPadRightMargin(0.15);
gStyle->SetPadLeftMargin(0.12);
//gStyle->SetTitleYOffset(1.4);
TCanvas* canvas1 = new TCanvas("canvas1","canvas1",1000,1000);
TH2F* htdc = (TH2F*) rootfile->Get("htdc");
canvas1->cd();
htdc->Draw("colz");
TH2F* h_correctedTDC = (TH2F*) rootfile->Get("h_correctedTDC");
TCanvas* canvas2 = new TCanvas("canvas2","canvas2",800,800);
canvas2->cd();
h_correctedTDC->Draw("colz");
/*
canvas2->cd(2);
int binY = map[chX][chY];
TH1D* channelY = h_correctedTDC->ProjectionX("",binY+1,binY+1);
//channelY->SetStats(0);
char title[256];
sprintf(title,"Channel %d;t [ns];Events", binY);
channelY->SetTitle(title);
channelY->GetYaxis()->SetTitleOffset(1.7);
//TAxis* xAxis = h_correctedTDC->GetXaxis();
//int range = xAxis->GetBinUpEdge(xAxis->GetLast()+1);
//channelY->GetXaxis()->SetRangeUser(-range, range);
channelY->Draw();
 
TF1* f_gaus1 = new TF1("f_gaus1","[0] + gaus(1)", rangeLeft,rangeRight);
TF1* f_gaus2 = new TF1("f_gaus2","[0] + gaus(1) + gaus(4)",-8,8);
f_gaus1->SetParNames("Linear","Norm","#mu","#sigma");
f_gaus2->SetParNames("Linear","Norm1","Mean1","Sigma1","Norm2","Mean2","Sigma2");
Int_t n = channelY->GetMaximum();
Float_t mean = channelY->GetBinCenter(channelY->GetMaximumBin());
f_gaus1->SetParameters(channelY->GetMinimum(), n, mean, 2.0);
channelY->Fit(f_gaus1,"0");
channelY->Fit(f_gaus1,"r");
*/
//Fit in range +- 3 sigma
//channelY->Fit(f_gaus1,"r","", f_gaus1->GetParameter(2)-3*f_gaus1->GetParameter(3),
// f_gaus1->GetParameter(2)+3*f_gaus1->GetParameter(3));
 
//f_gaus2->SetParameters(-1, n, mean-0.1, 0.01,
// n, mean+0.1, 0.1);
//channelY->Fit(f_gaus2,"0");
//channelY->Fit(f_gaus2,"rl");
// set range to +- 3 sigma
//channelY->Fit(f_gaus,"lr","",f_gaus->GetParameter(2)-3*f_gaus->GetParameter(3),
// f_gaus->GetParameter(2)+3*f_gaus->GetParameter(3));
return (0);
}