长硼计数器测量脉冲中子的漏计数问题探讨

Counting Loss Problem of BF_3 Detector in Measuring Pulse Neutron Yield

根据BF3的探测原理,中子在聚乙烯的输运过程及管内10B(n,α)7Li反应机理,通过大量的测量实验,模拟出脉冲测量中BF3漏计数概率很小的边界条件,该测量方法适合目前脉冲中子装置中的中子产额测量。

According to measuring experiments, neutron movement in polyethylene, BF3 detection principle, and 10B（n, ？）7Li reaction in BF3, the paper gave restricted condition that the counting loss of BF3 detector could be neglected in measuring the pulse neutron yield. As a result, this way adapts to some pulse neutron yields measuring.