Study on Engineering Development for Monte Carlo Burnup Code

This paper analyzes the basic needs of the burnup codes in reactor design, and points out that the related functions in the traditional theory of implementation does not apply to Monte Carlo burnup code. Therefore, according to the characteristics of exact combination geometry and complex depletion chain, mixed burnup mode used in fuel and burnable poison depletion, more accurate body movement used in critical rod position searching and restart function under complex depletion chain have been developed for the Monte Carlo burnup code MOI, which would be preliminary feasibility for engineering application.