Tritium( $^3$H) Activity Measurement by the Liquid Scintillation Counting Method

  • Hwang, Sun-Tae (Division of Chemistry and Radiation Research Korea Research Institute of Standards and Science) ;
  • Oh, Pil-Jae (Division of Chemistry and Radiation Research Korea Research Institute of Standards and Science) ;
  • Lee, Min-Kie (Division of Chemistry and Radiation Research Korea Research Institute of Standards and Science) ;
  • Kim, Wi-Soo (Radiological Control Dept. Wolsung Nuclear Power Plant Korea Electric Power Corporation)
  • Published : 1994.12.01

Abstract

At a nuclear power plant, environmental radioactivity monitoring is routine work for the radiation safety management For the environmental monitoring of tritium($^3$H) activity in water sampled liquid scintillation counting( LSC) method is applied to measure low- energy beta activity from tritium in the samples. The $^3$H activity is measured using the BECKMAN 5801 system at the KRISS( Korea Research Institute of Standards and Science) for evaluating the lower limits of detection( LLD) of $^3$H measurement and the measuring capability of low-level $^3$H activity at four nuclear Power Plant sites. The LSC systems used for low-level $^3$H activity measurements at the nuclear Power Plants are confirmed to satisfy throughout an intercomparison study under the experimental arrangements by the KRISS.

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