【摘要】 溶解、沉淀等工艺过程中，两相非均匀系统的临界计算是较难算准的问题。用常规的一些计算方法所得结果偏差较大。本文用ＭＣＮＰ蒙特卡洛程序对一系列两相非均匀系统的基准实验进行了计算分析，取得了较好的结果，表明点截面蒙特卡洛方法是处理这类问题的有效途径更多还原

【Abstract】 In the dissolution and precipitation process,It is difficult to make criticality calculation accurately for two phase heterogeneous system.In this paper,a Monte Carlo code MCNP is used to calculate several benchmark experiments for heterogeneous system,with good results obtained.The numerical results demonstrate that the Monte Carlo method with point wise cross section library is effective for heterogeneous systems.更多还原