Monte Carlo Calculation of First Wall Neutron Flux in Tokamak Fusion Reactor

摘要

The poloidal distribution of the first wall 14 MeV neutron flux and the tritium breed-ing ratio in a Tokamak fusion reactor were calculated using Monte Carlo method. The poloidal distribution of the 14 MeV neutron flux in the first wall was found to be quite different from that of the primary incident flux. The tritium breeding ratio calculated by the Monte Carlo method became about 5% larger than the value obtained from SN transport calculations.