|Message: Re: PhotonuclearXS : 22MeV gammas : O-16 : Lots of alphas...||Not Logged In (login)|
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The model which handles the photo-nuclear reaction is the Bertini-style intra-nuclear cascade, which is not really designed to work at these energies. As you mentioned, it does a reasonable job for neutrons and protons but that's only because the gamma bypasses the cascade and goes straight to exciton formation and decay. I suspect that the de-excitation code is not optimized for light nuclei like oxygen and that it could use some work. So, yes, it's fair to say the model is still under development for these energies.
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