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http://dx.doi.org/10.9718/JBER.2017.38.5.256

Buildup Characteristics of Radiophotoluminescent Glass Dosimeters with Exposure Time of X-ray  

Kweon, Dae Cheol (Department of Radiological Science, College of Health Science, Shinhan University)
Publication Information
Journal of Biomedical Engineering Research / v.38, no.5, 2017 , pp. 256-263 More about this Journal
Abstract
By using the buildup characteristics of the radiophotoluminescence glass dosimeter(RPLGD), it is aimed to help the measurement of the accurate dose by measuring the radiation dose according to the time of the glass element. Five glass elements were arranged on the table and the source to image receptor distance(SID) was set to 100 cm for the build-up radiation dose measurement of the fluorescent glass dosimeter glass element(GD-352M). Radiation doses and saturation rates were measured over time according to irradiation time, with the tube voltage (30, 60, 90 kVp) and tube current (50, 100 mAs) Repeatability test was repeated ten times to measure the coefficient of variation. The radiation dose increased from 0.182 mGy to 12.902 mGy and the saturation rate increased from 58.3% with increasing exposure condition and time. The coefficient of variation of the glass elements of the fluorescent glass dosimeter was ranged from 0.2 to 0.77 according to the X - ray exposure conditions. X - ray exposure showed that the radiation dose and saturation rate were increased with buildup characteristics, and degeneration of glass elements was not observed. The reproducibility of the variation coefficient of the radiation generator was included within the error range and the reproducibility of the radiation dose was excellent.
Keywords
Buildup; Radiation dose; Radiophotoluminescence glass dosimeter; X-ray;
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Times Cited By KSCI : 2  (Citation Analysis)
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