反应性阶跃变化从深次临界到瞬发超临界中子增殖统一公式  

An Uniform Formula of Neutron Multiplication Calculation from Sub-Criticality to Prompt-Criticality with Step Change of Reactivity

作　　者：蔡章生[1] 桂学文[1] 于雷[1] 

机构地区：[1]海军工程大学,武汉430033

出　　处：《核动力工程》2006年第2期14-16,25,共4页Nuclear Power Engineering

摘　　要：根据点堆公式导出了反应性阶跃变化时反应堆内中子增殖的统一公式,可用于反应堆深次临界、次临界、缓发超临界和瞬发超临界状态中子增殖计算。实例计算表明新推导的公式具有较高的计算精度,可用于定量分析与计算。An uniform formula of neutron multiplication calculation with step change of reactivity is derived from the point reactor kinetics equation. The model is applicable to calculate neutron multiplication in reactor sub-critical state, delay-critical state and prompt-critical state. The results show that the uniform formula can be used in quantitative analysis and calculation with a high operational precision.

关 键 词：中子增殖 中子动力学 反应堆安全 

分 类 号：TL329.2[核科学技术—核技术及应用]