title: Atmospheric radioxenon isotope monitoring in Beijing after the Fukushima nuclear power plant accident.
abstract: 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 (133)Xe concentrations ranged from 393 to 26 mBq/m(3) from 12 to 27 April 2011, and those of (131 m)Xe were 84 and 40 mBq/m(3) on 13 and 15 April 2011, respectively. The highest dose rate caused by (133)Xe was 2 × 10(-5)mSv/yr, and the average (133)Xe/(131 m)Xe ratio was 3.8 ± 0.4.
authors.affiliation: Northwest Institute of Nuclear Technology, P.O. Box 69-1, Xi'an 710024, PR China. zhouchongyang@pku.org.cn
authors.forename: Chongyang
authors.initials: C
authors.lastname: Zhou
authors.forename: Guoqing
authors.initials: G
authors.lastname: Zhou
authors.forename: Shujuan
authors.initials: S
authors.lastname: Feng
authors.forename: Yuren
authors.initials: Y
authors.lastname: Jin
authors.forename: Xinhua
authors.initials: X
authors.lastname: Zhao
authors.forename: Ziwei
authors.initials: Z
authors.lastname: Cheng
authors.forename: Xiongliang
authors.initials: X
authors.lastname: Huang
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.forename: Xu
authors.initials: X
authors.lastname: Zhou