کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1739126 | 1016834 | 2008 | 14 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Measurement and modelling of radioxenon plumes in the Ottawa Valley Measurement and modelling of radioxenon plumes in the Ottawa Valley](/preview/png/1739126.png)
Since 2001 a real-time radiation monitoring network of Canadian nuclear facilities and major population centres has been implemented for response to nuclear incidents including a possible terrorist attack. Unshielded NaI(Tl) spectroscopic detectors are employed to measure gamma radiation from airborne radioactivity and radioactivity deposited on the ground. These detectors are composed of a standard 3″ × 3″ cylindrical NaI(Tl) spectrometers with data storage and integrated telemetry. Some of the detectors have been deployed in the Ottawa Valley near Chalk River Laboratories and Ottawa, which has a complex radioxenon environment due to the proximity of nuclear power reactors, and medical isotope facilities. Although not a health threat, these releases have provided an opportunity for the Canadian Meteorological Centre and the Commissariat à l'Energie Atomique to validate their meteorological models. The meteorological models of the two organizations are in good agreement on the origin and the source terms of these releases.
Journal: Journal of Environmental Radioactivity - Volume 99, Issue 11, November 2008, Pages 1775–1788