由中子注量率空间分布形状测量确定反应堆次临界度的方法研究

Study on the method of determining the sub-criticality of a reactor via the measurement of core neutron flux spatial distribution

从堆物理的基础理论出发,提出了通过堆内中子注量空间分布的测量来确定反应堆次临界度的一种新方法,并通过对我国启明星1号次临界实验装置的数值模拟,初步说明了该方法的可行性。

A new methodology based on rigorous reactor physics theory astead of the point reactor assumption was proposed to determine or monitor the sub-criticality of a reactor, especially the sub-critical reactor of ADS, via the measurement of in-core flux spatial distribution. Preliminary numerical studies on the Ist ADS sub-critical experimental facilities-Venus 1 # in China have demonstrated the feasibility of this new method. Related discussions pointed out the potential applications of the method.