Monte Carlo Code for Reactor Analysis-RMC2.0

This paper describes a newly developed Monte Carlo code RMC2.0 used for reactor analysis which is applicable to continuous energy and arbitrary geometry.RMC2.0 employs ACE format library and includes two different tracking methods（ray-tracking and delta-tracking）.Some techniques such as uniform energy grid and hash-table method are adopted to improve the performance of RMC2.0.Criticality benchmarks and typical reactor examples are calculated for validation,which shows that RMC2.0 performs well in both accuracy and efficiency compared with MCNP5.Based on Message Passing Interface（MPI）,RMC2.0 succeeds in parallel computation and represents a high speed-up.