ADS启明星1号次临界度测量研究  

Study on the Sub-criticality Measurement for the ADS Venus 1#

作　　者：刘锋[1] 张巍[1] 章秩烽 刘洋[1] 刘东海[1] 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)

机构地区：[1]中国原子能科学研究院反应堆工程技术研究部,北京102413

出　　处：《核科学与工程》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。

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.

关 键 词：次临界反应堆 次临界度 脉冲源法 源倍增法 

分 类 号：TL375.1[核科学技术—核技术及应用]