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Anomalous90Sr deposition during the fall, 1995 at MRI, Tsukuba, Japan

  • Environmental Assay: Environmental Radioactivity
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Abstract

We have observed an anomalous90Sr deposition at the Meteorological Research Institute (MRI), Tsukuba, Japan during the fall of 1995. This anomalous90Sr deposition was confirmed by the re-analysis of the sample, the associated lowest137Cs/90Sr activity ratio and high r/s ratio, etc. We discuss the cause of this anomalous90Sr deposition and conclude that the anomalous90Sr may come from an accidental release of nuclear battery, etc.

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Authors and Affiliations

  1. Geochemical Research Department, Meteorological Research Institute, 1-1 Nagamine, 305, Tsukuba, Ibaraki, Japan

    Y. Igarashi, M. Aoyama, T. Miyao & K. Hirose

  2. Kansai Environmental Engineering Center, 2-3-39 Nakazakinishi, Kita-ku, 530, Osaka, Japan

    M. Tomita

Authors
  1. Y. Igarashi
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  2. M. Aoyama
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  3. T. Miyao
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  4. K. Hirose
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  5. M. Tomita
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Igarashi, Y., Aoyama, M., Miyao, T. et al. Anomalous90Sr deposition during the fall, 1995 at MRI, Tsukuba, Japan. J Radioanal Nucl Chem 239, 539–542 (1999). https://doi.org/10.1007/BF02349065

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  • DOI: https://doi.org/10.1007/BF02349065

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