I am trying to get cross sections for photonuclear reactions (gamma, n). So I have gamma beam with energy from 0.1 MeV up to 50 MeV and gold target. And I want to get cross sections for the next reactions for different gamma beam energy: Au197 + gamma = A196 + n, Au197 + gamma = A194 + 3n (attached image, I want to get the to compare). Now I use ShieldingLEND physics list.