MCMG程序用于多群截面检验的可行性研究  

Feasibility of MCMG Code Used in Validation of Multigroup Cross Sections

作　　者：胡泽华[1] 邓力[1] 陈朝斌[1] 孙伟力[1] 

机构地区：[1]北京应用物理与计算数学研究所,北京100088

出　　处：《原子能科学技术》2010年第12期1469-1476,共8页Atomic Energy Science and Technology

基　　金：中国工程物理研究院科学技术发展基金资助项目(2010B0103017)

摘　　要：以三维多群蒙特卡罗输运程序MCMG模拟计算了5个一维快临界基准实验装置和1个三维快临界基准装置的有效增殖因数和注量谱或泄漏谱,并与确定论多群离散纵坐标程序ANISN和连续截面蒙特卡罗程序MCNP的计算结果进行对比分析。结果表明,MCMG计算结果与ANISN结果有较好的符合,并接近MCNP计算结果,初步验证了MCMG应用于多群截面检验的可行性。The effective multiplication factors and fluence or currents of five 1D typical fast critical benchmark experiment models and one 3D fast critical benchmark experiment model were calculated using the 3D multigroup Monte-Carlo code MCMG.The results were compared with those of multigroup SN code ANISN and continued energy cross section Monte-Carlo code MCNP,respectively.The results of MCMG are in good agreement with those of ANISN,and close to those of MCNP as well.It is believed that MCMG can be used to test the validation of multigroup cross sections.

关 键 词：蒙特卡罗方法 S方法 多群截面检验 基准实验 有效增殖因数 注量 

分 类 号：TL64[核科学技术—核技术及应用]