摘要
按照费米年龄理论,提出包含6个待定参数的数学表达式来描述反应堆堆内空间某点完整的中子注量率谱,并由此使用非线性规划可变容差法建立了新的解谱方法和相应解谱程序SNAIL。对于热中子反应堆内部的中子注量率谱,根据测量的反应率数据计算得到的整个能区中子注量率谱结果很满意,与NEUSPAC解谱程序解得的中子注量率谱符合得很好。对于中能中子场和快中子反应堆,在未使用可裂变材料探测器情况下,计算结果与文献公布的结果基本符合。
Based on Ferm-age theory, the neutron flux spectrum at certain point in a reactor can be described by using a set of mathematical expressions with 6 parameters to be are solved by the modified flexible tolerance of nonlinear programming. The estimation code is called SNAIL. The calculations of the established method show that for a thermal reactor the KUR, the flux spectra from reaction rate measurements fit well those obtained by NEUSPAC code. For application to the intermediate neutron field and the fast neutron reactor, our calculations adopted the reaction rate of famous MOL-ΣΣ, YAYOI and CFRMF in the world. The neutron flux spectra calculated by the modified flexible tolerance method are basically coincident with those given in references.
出处
《核科学与工程》
CSCD
北大核心
2003年第4期337-342,共6页
Nuclear Science and Engineering
