反应性动态加入对脉冲堆中子脉冲波形的影响  

Effects of Loading Reactivity at Dynamic State on Wave of Neutrons in Burst Reactor

作　　者：高辉[1] 刘晓波[1] 范晓强[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《核动力工程》2013年第2期68-71,共4页Nuclear Power Engineering

基　　金：中国工程物理研究院科技发展基金项目(2010B0103010)

摘　　要：在点堆模型基础上开发了脉冲模拟程序,该程序考虑了缓发中子效应、裂变热反馈效应和脉冲棒的行进过程,可以描述脉冲堆爆发脉冲全过程的中子强度、裂变能以及反应性的变化,并经过实验数据验证。用该程序计算CFBR-Ⅱ堆在反应性动态加载过程中全波形、峰功率、反应性等脉冲特征参数,结果表明:脉冲引发的越晚,其峰功率和裂变产额越大,而且其最大裂变产额与静态爆发脉冲情况下的裂变产额相同。Based on the point reactor model, the program for simulating the burst of reactors, including delay neutron, thermal feedback and reactivity of rod, was developed. The program proves to be suitable to burst reactor by experimental data. The program can describe the process of neutron-intensity change in burst reactors. With the program, the parameters of burst （wave of burst, power of peak and reactivity of reactor） under the condition of dynamic reactivity can be calculated. The calculated result demonstrates that the later the burst is initiated, the greater its power of peak and yield are and that the maximum yield coordinates with the yield under static state.

关 键 词：脉冲堆 点堆模型 反应性 动态加载 

分 类 号：TL327[核科学技术—核技术及应用]