Geological Survey of Canada, Natural Resources Canada, 601 Booth St, Ottawa, Ontario K1A 0E8, Canada.
J Environ Radioact. 2011 Nov;102(11):1018-23. doi: 10.1016/j.jenvrad.2011.06.008. Epub 2011 Jul 13.
In response to the Fukushima nuclear reactor accident, on March 20th, 2011, Natural Resources Canada conducted aerial radiation surveys over water just off the west coast of Vancouver Island. Dose-rate levels were found to be consistent with background radiation, however a clear signal due to (133)Xe was observed. Methods to extract (133)Xe count rates from the measured spectra, and to determine the corresponding (133)Xe activity concentration, were developed. The measurements indicate that (133)Xe concentrations on average lie in the range of 30-70 Bq/m(3).
针对福岛核反应堆事故，2011 年 3 月 20 日，加拿大自然资源部在温哥华岛西海岸附近的水域进行了空中辐射调查。结果发现剂量率水平与本底辐射一致，但观察到了一个明显的（133）Xe 信号。开发了从测量谱中提取（133）Xe 计数率并确定相应（133）Xe 活度浓度的方法。测量表明，（133）Xe 浓度平均在 30-70 Bq/m(3)范围内。
