| Title |
Feasibility Study on Development of a Fiber-Optic Dual Detector to Measure Beta- and Gamma-rays Simultaneously |
| Authors |
홍승한(Hong, Seunghan) ; 신상훈(Shin, Sang Hun) ; 심혁인(Sim, Hyeok In) ; 김선근(Kim, Seon Geun) ; 전혜수(Jeon, Hyesu) ; 장재석(Jang, Jaeseok) ; 김재석(Kim, Jaeseok) ; 권구원(Kwon, Guwon) ; 장경원(Jang, Kyoung Won) ; 유욱재(Yoo, Wook Jae) ; 이봉수(Lee, Bongsoo) |
| DOI |
https://doi.org/10.5370/KIEE.2014.63.2.284 |
| Keywords |
Fiber-optic detector ; Beta-ray ; Gamma-ray ; CaF_2(Eu) cryatal ; LYSO(Ce) cryatal |
| 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. |