|Message: Re: G4DynamicParticle - Energy and momentum||Not Logged In (login)|
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> The problem is that I pass the energy in the setting and I find a > different value in this point.
I don't understand this sentence. Are you saying that in PrimaryGeneratorAction you start a photon with 'x eV' but in your custom FDsimG4OpBoundaryProcess you find it has 'y eV'?
What do you get when you turn on tracking/verbose? What other processes, in previous steps, come before your boundary process? One of them must be changing the energy of the photon.
With a new version, random numbers fall differently.