OPT-PROD card clarification

Dear FLUKA experts,

I have a simple question regarding WHAT(2) of the OPT-PROD card in the case of scintillation light.

How is the “fraction of deposited energy going into i-th scintillation photon emission” related to characteristic tabulated parameters of a scintillator, such as the light-yield?
Is this fraction given by the product of the light-yield (usually expressed in photons/keV) and the energy of the scintillation photon? Or is it related to some other parameter?

Thank you very much for your help,
Best regards,

Dear Francesco @FraCas

that’s correct

Thank you for your help!