A Microscopic Study of Nuclear Fission using the Time-Dependent Hartree-Fock Method

摘要: This thesis is concerned with the application of the time-dependent Hartree-Fock method, adopting the Skyrme effective nuclear interaction, to investigate induced nuclear fission processes. Three-dimensional, symmetry-unrestricted constrained Hartree-Fock calculations of 240Pu are presented to obtain the static potential energy surface corresponding to an increasing quadrupole deformation. The time-dependent Hartree-Fock method is applied to evolve in time these deformed states. Different types of fission process are considered. Firstly, the evolution of static configurations which are deformed sufficiently such that they fission upon time evolution, without any external excitation,(deformation-induced fission) is investigated. The fragments smoothly form during a gradual evolution of the static state (taking up to~ 1500 fm/c for scission to occur), and the resulting fission products agree well with experimental …