کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1884067 | 1043323 | 2012 | 5 صفحه PDF | دانلود رایگان |
A conceptual design is presented to use measurements of localized absorbed dose in inner cities for production of high resolution maps of the radioactive contamination following a nuclear emergency or radiological attack. The doses are derived from luminescent detectors pre-fixed at places of high importance (e.g. public squares). For such an environmental dosimeter, BeO is used, which can be read out using optically stimulated luminescence (OSL). A suitable casing of black Perspex has been developed to give a sufficiently accurate estimate of the air kerma value at the detector position. The dosimeter is characterized according to light tightness, dose response and angular photon energy dependence. A short overview of the approach for map production is also given.
► An inexpensive, environmentally stable BeO based OSL dosimeter has been developed for emergency response.
► The detector enables fast readouts and shows highly favorable dosimetric properties.
► A conceptual design is described to produce maps of radioactive contamination from localized dose measurements in urban areas.
Journal: Radiation Measurements - Volume 47, Issue 8, August 2012, Pages 609–613