Abstract
This paper examines the burn characteristics for inertial confinement fusion fuel pellets, using a hydrodynamics code modified to include neutron transport and charged particle transport. The results indicate that neutron heating has large effects on the burn performance, for instance the fusion yield and internal tritium breeding ratio of a DT ignitor/DD fuel pellet having a ϱR (density times radius) value of 10.4 g/cm 2 which exceeds the mass mean free path, 4.6 g/cm 2 of 14 MeV neutrons generated in the DT reactions. It is also shown that the transport of 14.7 MeV protons produced by the D 3He reaction plays a significant role in determining the burn characteristics of a DT ignitor/D 3He fuel pellet. Nuclear elastic scattering (NES) of 14.7 MeV protons enhances the ion heating, leading to a higher fuel gain. Finally, a neutronic analysis of a laser-driven inertial confinement fusion reactor, SENRI-I is presented. A Monte Carlo code was used for the time-dependent radiation damage analysis as well as for the radiation streaming analysis.
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