4πβ-γ符合测量^(198)Au活度方法研究  

The Research of Measuring the Activity of ^(198)Au Using 4πβ-γ Coincidence Method

作　　者：谷振军[1] 张一云[1] 

机构地区：[1]四川大学物理科学与技术学院,成都610064

出　　处：《核电子学与探测技术》2008年第5期1034-1036,1050,共4页Nuclear Electronics & Detection Technology

摘　　要：金箔活化法是中子注量率绝对测量常用方法之一,通过测量活化生成的198Au核数目,可以获知辐照场热中子注量率信息。本文分析了利用4πβ-γ符合装置测量198Au薄膜源活度的原理,提出了不制源情况下直接测量198Au箔片活度命题,理论上证明了该方法的可行性,并提出了具体实现方案。Activating gold foil is one of the usual methods absolute measuring the thermal neutron flux rate. Through measuring the number of 198^Au, we can acknowledge the information of thermal neutron flux rate in neutron field. The paper analysed the principle of measuring the activity of thin film 198^Au source using 4πβ-γ coincidence equipment. Put forward a topic measuring the activity of 198^Au foil directly, certifieated the theories possibility of it, and put forward a way to achieve it.

关 键 词：4πβ-γ符合 薄膜源 金箔 直接测量 

分 类 号：TL[核科学技术]