Multimodal photofission approach of 238U at intermediate energies

The photofission fragment yields of uranium using Bremsstrahlung at energies of 50 and 3500 MeV are measured. The nuclear charge and mass distributions of the fission fragments are obtained. On the basis of the multimodal fission approach the symmetric and asymmetric channels in the photofission process of 238U are deduced. This decomposition allowed to get the estimation of contribution of different components and to calculate fissilities at investigated photon energies