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http://dx.doi.org/10.5369/JSST.2016.25.5.333

Feasibility Study on Development of an Underwater Beta-ray Monitoring Sensor  

Park, Hye Min (Department of Physics, Myongji Unversity)
Joo, Koan Sik (Department of Physics, Myongji Unversity)
Publication Information
Journal of Sensor Science and Technology / v.25, no.5, 2016 , pp. 333-336 More about this Journal
Abstract
In this study, a beta monitoring sensor was developed as a part of basic research for quantitative beta monitoring underwater, and its performance was evaluated using a calibration source. A beta detection sensor was manufactured by using SiPM(silicon photomultiplier) and $CaF_2$:Eu, YAG:Ce, YAP:Ce scintillator. A large-area light guide was introduced to improve beta-ray detection efficiency. As calibration sources, the Beta source $^{90}Sr$, which is the main fission product of a nuclear accident, and the gamma source $^{137}Cs$ are used. In the performance evaluation, it is confirmed that scintillator $CaF_2:Eu$ gives the highest beta-ray detection response. Compared to gamma ray, beta-ray detection responsivity and detection efficiency are verified. Therefore, this study is expected to contribute to basic research in the development of an underwater beta-ray monitoring system.
Keywords
Beta-ray monitoring sensor; Silicon photomultiplier; Lighttools; Light guide;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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