Monte Carlo Calculation of the Characteristics of Source Neutrons and Irradiation Field of the FNS Rotating Target

摘要

The characteristics of the source neutrons generated by the rotating target and the irradiation field in the target room at the Fusion Neutronics Source (FNS) were calculated using a three-dimensional Monte Carlo method. The angular distributions of reaction rates around the target, the radial distribution of reaction rates in the target room and the source neutron spectrum were calculated and compared with the measured results. The comparison showed a reasonably good agreement for all the reaction rates and source neutron spectrum. The good agreement assures the validity of the calculated source neutron characteristics to be used in the future analyses of the experiments using the same rotating target. (Atomindex citation 16:082747)