• Title/Summary/Keyword: 방사성 오염

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Phoswich Detector for Simultaneous Measuring Alpha/beta Particles (알파/베타선 동시측정용 phoswich 검출기)

  • Kim, Gye-Hong;Park, Chan-Hee;Lee, Kune-Woo;Jung, Chong-Hun;Seo, Bum-Kyoung
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.6 no.2
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    • pp.111-117
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    • 2008

  • 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.

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