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.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2008年第5期1034-1036,1050,共4页
Nuclear Electronics & Detection Technology
关键词
4πβ-γ符合
薄膜源
金箔
直接测量
4πβ-γ coincidence, thin film source, gold foil, direct measure
作者简介
谷振军(1978-),男,四川大学研究生,主要从事核技术及其应用研究。