Preliminary Concept Design on Blanket Neutronics of a Fusion-Fission Hybrid Reactor for Energy Production

A concept of energy production reactor is given in this paper.It uses the natural uranium or U-Zr alloy of the spent fuel in PWR as its fuel and cooled by water.This concept is proliferation resistant for it needs no separation of plutonium from spent fuel.Preliminary concept design on blanket neutronics is finished by a burnup code coupled by MCNP and ORIGENS.Designs with natural uranium or spent fuel from PWR as fuels are computed and preliminary reload scheme is given.It requires lower fusion power than ITER and makes full use of ²³⁸U,which is of great significance for the sustainable development of nuclear energy.