|Message: Re: Fluence rate computed from the deposited energy of the optical photons||Not Logged In (login)|
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From the Appl. Devel. Manual:
"Optical photons are generated in GEANT4 without energy conservation and their energy must therefore not be tallied as part of the energy balance of an event."
As a result, the coding in G4OpAbsorption process is incomplete:
It does not set:
Now if you start with an optical photon with a given energy, the warning of the manual can be ignored, if you add these lines in your version of G4OpAbsorption.cc at:
const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
thePhotonMomentum = aParticle->GetTotalMomentum();
I believe then your sensitive detector should behave as you expect.