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Radioactivity in the highly contaminated area near the Chernobyl site

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Abstract

Field measurements of radioactivity were performed in highly contaminated areas around Chernobyl in the summer of 1990. Six radionuclides including the most dominant137Cs have been identified in soil samples through γ-ray spectrometry. The relation between the γ-ray dose rate above the ground and the radioactivity density in soils has been investigated. The external dose from deposited radiocesium for the period of 70 years after the deposition has been evaluated to be about 5 mSv per 1 and 0.5 Ci km−2 of137Cs and134Cs deposition, respectively.

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References

  1. USSR State Committee on the Utilization of Atomic Power, The Accident at the Chernobyl Nuclear Plant and Its Consequences, Report to IAEA, Vienna, 1986.

  2. Sovietskaya Byelorussia, 9 Feb. 1989.

  3. Pravda, 20 March 1989.

  4. Sovietskaya Byelorussia, 7 March 1990.

  5. Molodi Ukraini, 24 April 1990.

  6. USNRC, Reactor Safety Study, App. VI, WASH-1400, 1975.

  7. UNSCEAR, Ionizing Radiation: Sources and Biological Effects, UN Publ., 1982.

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Authors and Affiliations

  1. Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, 590-04, Osaka, Japan

    T. Imanaka, T. Seo & H. Koide

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  1. T. Imanaka
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  2. T. Seo
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  3. H. Koide
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Imanaka, T., Seo, T. & Koide, H. Radioactivity in the highly contaminated area near the Chernobyl site. Journal of Radioanalytical and Nuclear Chemistry Letters 154, 111–119 (1991). https://doi.org/10.1007/BF02162669

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  • DOI: https://doi.org/10.1007/BF02162669

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