原子能科学技术2013，Vol.47Issue(2)：193-196,4.DOI:10.7538/yzk.2013.47.02.0193
β-γ符合效率外推法绝对测量133Xe活度
Radioactivity Absolute Measurement of 133Xe With β-γCoincidence Efficiency Extrapolation Method
贾怀茂 1张新军 1李奇 1王世联 1樊元庆 1赵允刚1
作者信息
摘要
Abstract
Radioactive xenon isotope is one of important components for International Monitoring System (IMS) of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). It is a difficult problem that the activity of radioactive xenon isotope should be accurately measured. The principle of β-γ coincidence efficiency extrapolation method was described in detail in this paper. And the activity of 133Xe was absolutely determined by β-γ coincidence efficiency extrapolation method. In conclusion, β-γ coincidence efficiency extrapolation method can be applied to measure the activity of gas radionuclide. For the sake of increasing accuracy, β detector efficiency should be enhanced by decreasing gas self-absorption effect.关键词
效率外推法/全面禁止核试验条约/133XeKey words
efficiency extrapolation method/ CTBT/133Xe分类
数理科学引用本文复制引用
贾怀茂,张新军,李奇,王世联,樊元庆,赵允刚..β-γ符合效率外推法绝对测量133Xe活度[J].原子能科学技术,2013,47(2):193-196,4.
