摘要
次临界反应堆的反应性测量问题,一直是实验反应堆物理中的一个难题,且近年来越来越迫切。文章针对ADS次临界系统的特征,提出了用脉冲源法结合源倍增法测量系统次临界度的新思路,并在ADS启明星1号次临界实验装置上进行了测量实验。根据几组不同次临界度的测量结果来看,与理论计算结果偏差一般在600 pcm左右,确认了该方法的有效性。
The reactivity measurement of the subcritical reactor has always been a difficult problem in experimental reactor physics, and it has become more and more urgent in recent years. In view of the characteristics of the ADS subcritical system, a new idea of measuring the subcritical degree of the system by pulse source method combined with source multiplication method is put forward in this paper, and a measurement experiment is carried out on the subcritical device of the ADS Venus 1#. According to the measurement results of several groups of different sub-criticality, the deviation from the theoretical calculation results is generally around 600 pcm, confirming the effectiveness of this method.
作者
刘锋
张巍
章秩烽
刘洋
刘东海
李开健
LIU Feng;ZHANG Wei;ZHANG Zhifeng;LIU Yang;LIU Donghai;LI Kaijian(China Institute Of Atomic Energy,P.O.Box 275-45,Beijing 102413,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2022年第2期262-265,共4页
Nuclear Science and Engineering
基金
国家自然科学基金资助项目(91126005)资助。
关键词
次临界反应堆
次临界度
脉冲源法
源倍增法
Subcritical Reactor
Sub-criticality
Pulse source method
Source multiplication method