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Measurement of krypton-85 in the atmosphere with a portable apparatus

  • Nuclear Methods in Environmental Science
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Abstract

A portable apparatus was developed for the rapid collection, separation and counting of krypton-85 in the environmental air samples. The apparatus consists of a molecular sieve trap for the elimination of H2O and CO2, a charcoal trap for the collection of krypton, a chromatographic column for the isolation of krypton in the air sample and a vial for the dissolution of krypton in the scintillation solution. With this apparatus, krypton can be collected from half a cubic meter of air with 94% recovery in about 3 hrs. The measurements of krypton-85 have been done several times in Fukuoka area between the periods Jan. 30, 1981 and Dec. 9, 1981. And then, the krypton-85 concentration was found to be approximately 21 pCi/m3 air. The results were compared with those obtained by foregin investigators.

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Authors and Affiliations

  1. Department of Nuclear Engineering, Faculty of Engineering, Kyushu University 36, Hakozaki, Higashiku, 812, Fukuoka, (Japan)

    T. Okai

  2. Department of Chemistry, Faculty of Science, Kyushu University 33, (Japan)

    Y. Takashima

  3. Kyushu Environmental Evaluation Association, (Japan)

    N. Shiraishi & N. Matsuoka

Authors
  1. T. Okai
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  2. Y. Takashima
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  3. N. Shiraishi
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  4. N. Matsuoka
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Okai, T., Takashima, Y., Shiraishi, N. et al. Measurement of krypton-85 in the atmosphere with a portable apparatus. Journal of Radioanalytical and Nuclear Chemistry, Articles 81, 161–165 (1984). https://doi.org/10.1007/BF02132931

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  • DOI: https://doi.org/10.1007/BF02132931

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