CALL GPFISI GPFISI computes and stores in the appropriate bank (see JMATE data structure) the value of the photo-fission cross sections as a function of the energy for all the material for which this process is activated and with . It is called during initialisation by GPHYSI.
CALL GPFIS GPFIS is called by the tracking routine GTGAMA to generate the final state of a photon-induced fission.