摘要
对于定量描述Ge探测器全能峰效率与测量几何关系的“有效作用深度”原理(EID)进行了系统的研究。首次说明了该原理的适用范围和准确度,并将其实用于堆中子活化分析中不同测量几何下全能峰效率的参量法归一。
A systematic study on effective interaction depth (EID) theory is conducted in an effort to achieve parametric normalization for peak count rates taken from different counting positions. The results show that the errors introduced by EID prediction are generally less than 3% for analytical peaks with neg-legible summing effect. S0(Eγ) functions for two Ge detectors have been established and successfully used for 3 years. With the use of EID law, each sample (or standard) can be measured at its most suitable position (not necessarily at the same position for all the samples and standards in one batch). As a result, comparative analysis of activated samples and standards with extremely different gross radioactivities can be easily accomplished with no cost in precision and counting time.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1992年第2期65-70,共6页
Journal of Nuclear and Radiochemistry
基金
国家自然科学基金
关键词
中子活化分析
参量法
EID原理
Neutron activation analysis, Parametric method, Effective interaction depth (EID).
