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文章摘要

气溶胶γ核素测量技术水平评估

Evaluation of Measurement Capability of Gamma Nuclides in Aerosol

DOI：

英文关键词: Aerosol Gamma nuclide Measurement evaluation

基金项目:环境保护部核设施安全监管司“2013年国家辐射环境监测网络质量保证与技术保障”基金资助项目（监测1306）

作者	单位
姚海云	浙江省辐射环境监测站，浙江省辐射环境安全监测重点实验室

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中文摘要:

评估了全国辐射环境监测网络气溶胶γ核素的测量技术水平，对24家成员单位的考核结果统计分析表明，137Cs、238U、60Co、133Ba测量结果的合格率分别为92.0%、60.0%、64.0%、70.8%，总体合格率为71.7%；各核素的测量结果均不同程度地存在系统负误差，特别是低能γ核素238U的测量相对误差近15%，可采用反康普顿谱仪加以改善。

英文摘要:

The measurement capability of gamma nuclides in aerosol was evaluated. The evaluative results of 24 units showed that the qualification rate of 137Cs,238U,60Co and 133Ba were 92.0%,60.0%,64.0% and 70.8% respectively,and the total qualification rate of four nuclides was 71.7%. Negative system errors were found to some degrees in the measurement results of nuclides,especially in low energy gamma ray 238U,the relative error was close to 15%,which could be improved by using the anti Compton spectrometer.

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