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http://dx.doi.org/10.5370/KIEE.2014.63.2.284

Feasibility Study on Development of a Fiber-Optic Dual Detector to Measure Beta- and Gamma-rays Simultaneously  

Hong, Seunghan (Research Institute of Biomedical Engineering, Konkuk University)
Shin, Sang Hun (Research Institute of Biomedical Engineering, Konkuk University)
Sim, Hyeok In (Research Institute of Biomedical Engineering, Konkuk University)
Kim, Seon Geun (Research Institute of Biomedical Engineering, Konkuk University)
Jeon, Hyesu (Research Institute of Biomedical Engineering, Konkuk University)
Jang, Jaeseok (Research Institute of Biomedical Engineering, Konkuk University)
Kim, Jaeseok (Research Institute of Biomedical Engineering, Konkuk University)
Kwon, Guwon (Research Institute of Biomedical Engineering, Konkuk University)
Jang, Kyoung Won (Research Institute of Biomedical Engineering, Konkuk University)
Yoo, Wook Jae (Research Institute of Biomedical Engineering, Konkuk University)
Lee, Bongsoo (Research Institute of Biomedical Engineering, Konkuk University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.63, no.2, 2014 , pp. 284-290 More about this Journal
Abstract
A fiber-optic beta/gamma dual detector system with two types of sensing probes was fabricated to detect the beta- and gamma-rays simultaneously. As scintillators of the sensing probe type 1, two different inorganic scintillators, $CaF_2(Eu)$ and LYSO(Ce) crystals, were used to obtain the each scintillating efficiency with respect to beta-and gamma-rays and the inherent energy spectra of radioactive isotopes. In the case of the sensing probe type 2, which is composed of two identical inorganic scintillators and a beta shielding material based on the lead, it could discriminate beta- and gamma-rays using a subtraction method. In conclusion, we demonstrated that the proposed fiber-optic beta/gamma dual detector could measure and discriminate beta- and gamma-rays using both energy spectroscopy and subtraction method.
Keywords
Fiber-optic detector; Beta-ray; Gamma-ray; $CaF_2(Eu)$ cryatal; LYSO(Ce) cryatal;
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Times Cited By KSCI : 3  (Citation Analysis)
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