Product yields for the photofission of 232Th, 234,238U, 237Np, and 239,240,242Pu actinides at various incident photon energies

摘要

Photofission fragments mass yield for 232Th, 234,238U, 237Np, and 239,240,242Pu isotopes are investigated. The calculations are done using a developed approach based on Gorodisskiy's phenomenological formalism. The Gorodisskiy's method is developed to be applied for the neutron-induced fission. Here we revised it for application to photofission. The effect of emitted neutron prior to fis-sion on the fission fragment mass yields has also been studied. The peak-to-valley ratio is extracted for the 240Pu isotope as a function of energy. Obtained results of the present formalism are compared with the available exper-imental data. Satisfactory agreement is achieved between the results of present approach and the experimental data.