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moench data classes

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git-svn-id: file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorCalibration@3 113b152e-814d-439b-b186-022a431db7b5
This commit is contained in:
bergamaschi
2013-10-18 08:20:55 +00:00
parent 6a1ffaeda0
commit 11abebfe7e
5 changed files with 397 additions and 22 deletions
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66
slsDetectorCalibration/energyCalibration.cpp
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@ -22,14 +22,65 @@
using namespace std;
#ifdef MYROOT
Double_t energyCalibrationFunctions::pedestal(Double_t *x, Double_t *par) {
return par[0]-par[1]*sign*x[0];
}
Double_t energyCalibrationFunctions::gaussChargeSharing(Double_t *x, Double_t *par) {
Double_t f, arg=0;
if (par[3]!=0) arg=(x[0]-par[2])/par[3];
f=par[4]*TMath::Exp(-1*arg*arg/2.);
f=f+par[5]*(par[4]/2*(TMath::Erfc(sign*arg/(TMath::Sqrt(2.)))))+par[0]-par[1]*sign*x[0];
return f;
if (par[3]!=0) arg=sign*(x[0]-par[2])/par[3];
f=TMath::Exp(-1*arg*arg/2.);
f=f+par[5]/2.*(TMath::Erfc(arg/(TMath::Sqrt(2.))));
return par[4]*f+pedestal(x,par);
}
Double_t energyCalibrationFunctions::gaussChargeSharingPixel(Double_t *x, Double_t *par) {
Double_t f;
if (par[3]<=0 || par[2]*(*x)<=0 || par[5]<0 || par[4]<=0) return 0;
Double_t pp[3];
pp[0]=0;
pp[1]=par[2];
pp[2]=par[3];
f=(par[5]-par[6]*(TMath::Log(*x/par[2])))*erfBox(x,pp);
f+=par[4]*TMath::Gaus(*x, par[2], par[3], kTRUE);
return f+pedestal(x,par);
}
Double_t energyCalibrationFunctions::erfBox(Double_t *z, Double_t *par) {
Double_t m=par[0];
Double_t M=par[1];
if (par[0]>par[1]) {
m=par[1];
M=par[0];
}
if (m==M)
return 0;
if (par[2]<=0) {
if (*z>=m && *z<=M)
return 1./(M-m);
else
return 0;
}
return (TMath::Erfc((z[0]-M)/par[2])-TMath::Erfc((z[0]-m)/par[2]))*0.5/(M-m);
}
// basic erf function
Double_t energyCalibrationFunctions::erfFunction(Double_t *x, Double_t *par) {
double arg=0;
@ -155,6 +206,10 @@ Double_t energyCalibrationFunctions::spectrum(Double_t *x, Double_t *par) {
return gaussChargeSharing(x,par);
}
Double_t energyCalibrationFunctions::spectrumPixel(Double_t *x, Double_t *par) {
return gaussChargeSharingPixel(x,par);
}
Double_t energyCalibrationFunctions::scurve(Double_t *x, Double_t *par) {
return erfFunctionChargeSharing(x,par);
@ -193,6 +248,9 @@ energyCalibration::energyCalibration() :
fspectrum=new TF1("fspectrum",funcs,&energyCalibrationFunctions::spectrum,0,1000,6,"energyCalibrationFunctions","spectrum");
fspectrum->SetParNames("Background Pedestal","Background slope", "Peak position","Noise RMS", "Number of Photons","Charge Sharing Pedestal");
fspixel=new TF1("fspixel",funcs,&energyCalibrationFunctions::spectrumPixel,0,1000,7,"energyCalibrationFunctions","spectrumPixel");
fspixel->SetParNames("Background Pedestal","Background slope", "Peak position","Noise RMS", "Number of Photons","Charge Sharing Pedestal","Corner");
#endif