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J Radiat Prot > Volume 31(3); 2006 > Article
Journal of Radiation Protection 2006;31(3):123-0.
배관 내부 방사능 오염도 측정용 ZnS(Ag)/BC-408 phoswich 검출기 개발
Development of the ZnS(Ag)/BC-408 phoswich detector for monitoring radioactive contamination inside pipes
Kim, Gye-Hong;Park, Chan-Hee;Jung, Chong-Hun;Lee, Kune-Woo;Seo, Bum-Kyoung;
A small radiation detection system is necessary for the direct characterization of alpha/beta-ray contamination inside pipes generated during the decommission of a nuclear facility. In this work, the new type phoswich detector consisting of the ZnS(Ag) and plastic scintillator for ${alpha}/{beta}$ simultaneous counting was designed as part of a development of a equipment capable of monitoring radiological contamination inside pipes. The optimum counting conditions in dimensions of scintillator and a detection system were experimentally confirmed and a performance of alpha/beta-ray discrimination was evaluated. As a result, optimum conditions of a detector suitable for monitoring radiological contamination inside pipes and a feasibility of application to pipe-inside were confirmed.
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