同位素2025，Vol.38Issue(2)：170-177,8.DOI:10.7538/tws.2024.youxian.087
相对效率刻度技术用于钚同位素丰度分析的拟合方法研究
Fitting Methods for Plutonium Abundance Analyses Using the Relative Efficiency Scale Technique
刘一帆 1张可语 1赵浩程 1吕浩 1许小明1
作者信息
- 1. 中国原子能科学研究院,北京 102413
- 折叠
摘要
Abstract
In order to improve the precision of plutonium isotope abundance analysis by γ-spectrometry,the article fits the relative efficiency scaling curves of 239Pu and 241Pu energy peaks in the energy region of 120-460 keV by studying the principle of relative efficiency scaling in γ-spectrometry and improves it by polynomial interpolation in response to the shortcoming of insufficient fitting accuracy in the traditional method,and finally improves the fitting effect of the previous and previous methods by comparing with the actual spectra.Finally,we compare the fitting effects of the improved method with the actual energy spectrum and conclude that the analytical accuracy is higher after the improvement than before.The work of the article is of great significance for the analysis of plutonium isotope abundance by the relative efficiency scale technique.关键词
核保障/γ能谱法/相对效率刻度Key words
nuclear safeguards/gamma spectrometry/relative efficiency scale分类
核科学引用本文复制引用
刘一帆,张可语,赵浩程,吕浩,许小明..相对效率刻度技术用于钚同位素丰度分析的拟合方法研究[J].同位素,2025,38(2):170-177,8.
