Atmospheric radioxenon isotope monitoring in Beijing after the Fukushima nuclear power plant accident

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• 作者：Chongyang Zhou ; ^{zhouchongyang@pku.org.cn} ; Guoqing Zhou ; Shujuan Feng ; Yuren Jin ; Xinhua Zhao ; Ziwei Cheng ; Xiongliang Huang ; Hui Xu ; Xu Zhou
• 关键词：Fukushima nuclear power plant accident ; Radioxenon isotope concentration ; On-site inspection ; Radioxenon sampling ; Separation and monitoring system ; Adsorption separation
• 刊名：Applied Radiation and Isotopes
• 出版年：2013
• 出版时间：February, 2013
• 年：2013
• 卷：72
• 期：Complete
• 页码：123-127
• 全文大小：635 K

文摘

A custom-made, on-site radioxenon sampling, separation and monitoring system was used to monitor atmospheric radioxenon concentrations in Beijing, released from the Fukushima Daiichi nuclear power plant after the earthquake of 11 March 2011. The results show that ¹³³Xe concentrations ranged from 393 to 26 mBq/m³ from 12 to 27 April 2011, and those of ^131mXe were 84 and 40 mBq/m³ on 13 and 15 April 2011, respectively. The highest dose rate caused by ¹³³Xe was 2¡Á10^?5 mSv/yr, and the average ¹³³Xe/^131mXe ratio was 3.8¡À0.4.