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김계홍,박찬희,이근우,정종헌,서범경,Kim, Gye-Hong,Park, Chan-Hee,Lee, Kune-Woo,Jung, Chong-Hun,Seo, Bum-Kyoung 한국방사성폐기물학회 2008 방사성폐기물학회지 Vol.6 No.2
The new type phoswich detector consisting of the ZnS(Ag) and plastic scintillator for alpha/beta-ray simultaneous counting was developed for monitoring radiological contamination inside pipes. The detection performance was estimated using the PSD (pulse shape discrimination) method as a function of distance between the scintillator and radioactive source. The attenuation of particles traveling through a thin film for preventing the detector from being contaminated was experimentally estimated. It is concluded from our investigation that the phoswich detector developed can provide a sufficient alpha/beta-ray discrimination. The application of a thin film for preventing the detector from being contaminated was proven to be feasible.