同位素2022，Vol.35Issue(2)：92-97,6.DOI:10.7538/tws.2021.youxian.016
有源中子计数法测量铀总量方法研究
Research on Uranium Mass Determination Methodology Using Active Neutron Counting
陈勇 1程毅梅 1许小明1
作者信息
- 1. 中国原子能科学研究院 放射化学研究所,北京 102413
- 折叠
摘要
Abstract
Uranium material is a very important ingredient of nuclear industry，it is also a very important object in the field of nuclear safeguards. How to accurately determine the mass of uranium in nuclear material is a popular research topic of non-destructive assay. Nowadays，active non-destructive assay is the most usual assay to accurately determine the mass of uranium in nuclear material. Previous active neutron detection assay is the quality of calibration，but this report use a new method of active neutron detection, this report include principle of measurement，method of measurement，the experimental process，data processing and result analyzing. This research explores and validates new method with measuring and analyzing 10 group of uranium samples. From the measurements result, the measurement error is 1.7%，which is within non-destructive error(5%)，improve that this method is available. In the process of method establishment, using different abundance uranium samples to confirm the formula to calculate effective mass of 235U，applicable to the same conditions to rapid non-destructive measurements.关键词
铀材料/有源中子法/无损分析技术/有效235U质量Key words
uranium material/active neutron assay/non-destructive assay/effective mass of 235U分类
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陈勇,程毅梅,许小明..有源中子计数法测量铀总量方法研究[J].同位素,2022,35(2):92-97,6.
