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Uranium in Fallout Particles

Nature volume 218, pages 555–556 (1968)Cite this article

A Corrigendum to this article was published on 25 May 1968

Abstract

THE activity of uranium in hot particles (highly radio-active fallout particles) collected on a roof at our laboratory shortly after several nuclear explosions was measured by uranium separation and electrodeposition followed by α-ray spectrometry. Hot particles were isolated from dust particles under a microscope and their diameters were measured1,2. Similar measurements of uranium activity were also made on rainwater samples and a soil sample. Hot particles are very suitable for determining the abundance ratio of uranium isotopes in nuclear debris, because there can be no contamination by natural uranium. Rainwater or airborne dust samples inevitably contain soil particles, the uranium content of which makes the determinations unreliable.

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References

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Authors and Affiliations

  1. Department of Health Physics and Instrumentation, Radiation Centre of Osaka Prefecture, Osaka, Japan

    T. MATSUNAMI & T. MAMURO

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  1. T. MATSUNAMI
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  2. T. MAMURO
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An erratum to this article is available at https://doi.org/10.1038/218798g0

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MATSUNAMI, T., MAMURO, T. Uranium in Fallout Particles. Nature 218, 555–556 (1968). https://doi.org/10.1038/218555a0

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