Nuclear properties of Tungsten under 14 MeV neutron irradiation for fusion-fission hybrid reactors

Abstract

Monte-Carlo simulations were performed to study the behavior of Tungsten under 14 MeV neutron irradiation. At this energy, its multiplicative properties become relevant, especially due to the ðn; 2nÞ channel, but many other reactions are also present and a transmutation cycle can be drawn, showing the accumulation of metallic byproducts like Rhodium and Osmium. Also, a three-layer model was used to describe the interfaces within a schematic hybrid fusion-fission reactor to simulate the neutron transmission and reflection, showing that Tungsten can be a very useful material for a fission-breeding interface.