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An improved apparatus for the determination of krypton-85 and xenon-133 in an emergency situation

  • N. Matsuoka
  • N. Momoshima
  • T. Okai
  • Y. Takashima
  • N. Shiraishi
Article

Abstract

A simple and portable apparatus was developed for measurements of85Kr and133Xe that would be released into the atmosphere in an emergency situation of nuclear facilities. The method is based on cryogenic adsorption of these gases on charcoal followed by chromatographic separation from other gases. The85Kr and133Xe recovered from atmospheric air are determined separately by liquid scintillation counting. It takes about 1 hour for the stepwise determination of85Kr and133Xe. The atmospheric concentration of 3·10−3 μCi per m3 air (1.1·102 Bq/m3 air) is measurable for both nuclides with 20% counting error.

Keywords

Atmosphere Physical Chemistry Inorganic Chemistry Charcoal Chromatographic Separation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1988

Authors and Affiliations

  • N. Matsuoka
    • 1
  • N. Momoshima
    • 2
  • T. Okai
    • 3
  • Y. Takashima
    • 2
  • N. Shiraishi
    • 1
  1. 1.Kyushu Environmental Evaluation AssociationFukuoka(Japan)
  2. 2.Department of Chemistry, Faculty of ScienceKyushu UniversityFukuoka(Japan)
  3. 3.Department of Nuclear Engineering, Faculty of EngineeringKyushu UniversityFukuoka(Japan)

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