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J Environ Radioact. 2013 Aug;122:9-15. doi: 10.1016/j.jenvrad.2013.02.006. Epub 2013 Mar 20.

The determination of trace amounts of natural 133Xe in gas under high radon activity concentration levels.

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  • 1Northwest Institute of Nuclear Technology, Xi'an 710024, PR China.


Radioxenon monitoring has become one of the major concerns in both international monitoring systems and on-site inspection. The most important technical specifications for radioxenon system are the radon removal coefficient and the minimum detectable activity concentration. We have developed one kind of on-site radioxenon sampling, separation and measurement system, and have tested it under high radon activity concentration levels. The result shows the natural (133)Xe background activity concentration, the (133)Xe/(222)Rn ratio and the radon removal coefficient to be in the ranges 0.73-1.6 mBq/m(3), (1.5-3.5) × 10(-8) and (2.3-57) × 10(-8), respectively.

Copyright © 2013 Elsevier Ltd. All rights reserved.

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