수중 내 베타선 모니터링 센서 개발을 위한 기초연구
Feasibility Study on Development of an Underwater Beta-ray Monitoring Sensor
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초록
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 CaF2: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 90Sr, which is the main fission product of a nuclear accident, and the gamma source 137Cs are used. In the performance evaluation, it is confirmed that scintillator CaF2: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.
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 CaF2: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 90Sr, which is the main fission product of a nuclear accident, and the gamma source 137Cs are used. In the performance evaluation, it is confirmed that scintillator CaF2: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.
참고문헌 (10)
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