摘要
依据美国核管会有关压力容器中子注量确定方法的管理导则,在二维SN程序DORT的基础上,通过自行开发X-Y与R-θ坐标系间的中子源转换程序,建立起了一套基于综合法的压力容器三维快中子注量计算方法。NUREG/CR-6453和NUREG/CR-6115基准问题检验结果表明,本文所建立的方法能够提供满足工程精度要求的压力容器注量空间和能谱分布。
According to the NRC regulatory guide for determining pressure vessel neutron fluence, a synthesis method for obtaining the 3D fluence was developed based on the 2D SN code of DORT and a neutron source conversion code that maps the source from X-Y coordinate to R-O coordinate. Results of verification against the NUREG/CR-6453 and NUREG/CR-6115 benchmark problems demonstrated that the developed methodology is capable of providing neutron fluence spatial and energy spectrum distribution with acceptable accuracy.
出处
《核科学与工程》
CSCD
北大核心
2012年第4期289-294,共6页
Nuclear Science and Engineering
