| 133Xe活度浓度的绝对测量 |
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| 引用本文： | 李奇,王世联,樊元庆,贾怀茂,陈占营,张新军,赵允刚,王军.133Xe活度浓度的绝对测量[J].原子能科学技术,2011,45(4):385-388. |
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| 作者姓名： | 李奇 王世联 樊元庆 贾怀茂 陈占营 张新军 赵允刚 王军 |
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| 作者单位： | 禁核试北京国家数据中心和北京放射性核素实验室，北京100085 |
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| 摘 要： | 惰性气体氙监测是全面禁止核试验条约（CTBT）国际监测系统（IMS）的关注重点，其中，放射性氙同位素的活度浓度主要采用HPGeγ能谱法和β-γ符合法测量，如何准确刻度系统的探测效率是放射性氙测量的难点。本工作介绍了一种采用内充气正比计数管长度补偿绝对测量放射性氙活度的原理和方法，对133Xe活度浓度进行了绝对测量，其活度浓度测量结果为21.36×（1±1.5%）Bq/mL。
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| 关 键 词： | 全面禁止核试验条约 133Xe" target="_blank">133Xe')">133Xe 内充气正比计数管 绝对测量 |
Absolute Measurement of 133Xe Activity Concentration |
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| LI Qi,WANG Shi-lian,FAN Yuan-qing,JIA Huai-mao,CHEN Zhan-ying,ZHANG Xin-jun,ZHAO Yun-gang,WANG Jun.Absolute Measurement of 133Xe Activity Concentration[J].Atomic Energy Science and Technology,2011,45(4):385-388. |
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| Authors: | LI Qi WANG Shi-lian FAN Yuan-qing JIA Huai-mao CHEN Zhan-ying ZHANG Xin-jun ZHAO Yun-gang WANG Jun |
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| Affiliation: | CTBT Beijing National Data Centre and Radionuclide Laboratory, Beijing 100085, China |
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| Abstract: | Noble gas xenon is one of important components for Comprehensive Nuclear-Test-Ban Treaty (CTBT) International Monitoring System (IMS). Monitoring sample was generally measured by HPGe γ spectrometer and β-γ coincidence system. How to accurately determine the detect efficiency of the system was a nodus of radioactive Xe measurement. The theory and method of activity concentration measurement of radioactive Xe by internal gas proportional counting were studied. 133Xe activity concentration measured by internal gas proportional counting is 21.36×（1±1.5%） Bq/mL. |
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| Keywords: | Comprehensive Nuclear-Test-Ban Treaty 133Xe internal gas proportional counting absolute measurement |
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