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Question Spectrum of Optical photons generated in scintillator 

Forum: Processes Involving Optical Photons
Date: 12 Dec, 2014
From: Amit Kumar <Amit Kumar>

Hello every one

I want to see energy spectrum of optical photons generated by gamma ray in a scintillator. For that I have introduced following lines in ClassifyNewTrack() of StackingAction

      == "opticalphoton")
{ if(aTrack->GetParentID()> 0)
    G4double E = (aTrack->GetVertexKineticEnergy())/MeV;

FILE *beam;
beam = fopen("beam_Energy.txt","a");

OpRun is pointing RunAction where I am plotting Energy spectrum but I am not getting any spectrum in histogramme and all energy values printed in beam_Energy.txt is zero.

But when I used

G4double E = (aTrack->GetKineticEnergy())/MeV;

then I am getting some spectrum non zero energy values in the text file.

I want to know whether it is the actual spectrum to what I am looking for. Because I don't know whether GetKineticenergy is giving energy at the starting point or end point of a optical photon track or it is at some different point.

If it is not the spectrum that I want to get then what should do in the code?

Any comment or suggestion will be appreciated


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1 Feedback: Re: Spectrum of Optical photons generated in scintillator   (Gumplinger Peter - 12 Dec, 2014)
(_ None: Re: Spectrum of Optical photons generated in scintillator   (Amit Kumar - 15 Dec, 2014)
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