改进的源倍增方法测量控制棒价值

摘要

该文给出了改进的源倍增方法测量控制棒价值的原理，在高富集度235 U 燃料元件转换为低富集度235 U 的微型中子源零功率反应堆上进行研究，实验测量微型中子源零功率反应堆中心控制棒的价值，与周期方法相比在2％内符合，但减少了测量时间。该方法为今后加速器驱动次临界系统 ADS 的次临界在线监督提供一种可能的方法。%Control rod worth measurement principle with improved neutron source multiplication (INSM)method is described and its worth measurement was completed on the miniature neutron source reactor by this method. Worth of control rod located in the center of the core is in accordance with the value measured by period method within the error 2%,but the measuring time is quite short. INSM can be used to monitor the sub-critical reactivity of accelerator driven sub-critical system (ADS)on line in the future.