Letter | Published:

Evidence for Radio-Ruthenium in Milk

Naturevolume 207pages775776 (1965) | Download Citation

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Abstract

DURING routine counting for the determination of caesium-137 levels, an unexpected gamma-ray peak at about 0.51 MeV was observed in a number of milk samples from many different locations throughout Utah (Figs. 1 and 2). It was detected in milk produced on all dairy farms which we sampled between March 1962 and March 1963.

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References

  1. 1

    Strominger, D., Hollander, J. M., and Seaborg, G. T., Rev. Mod. Physics, 30, 585 (1958).

  2. 2

    Crouthamel, C. W., Applied Gamma-Ray Spectrometry (Pergamon Press, London, 1960).

  3. 3

    Goldman, D. T., and Stehn, J. R., Chart of the Nuclides, sixth ed. (General Electric Company, 1961).

  4. 4

    Slater, D. N., Gamma Rays of Radionuclides in Order of Increasing Energy (Butterworth and Co., Glasgow, 1962).

  5. 5

    Nelson, A., Ullberg, S., Kristaffersson, H., and Ronnback, C., Acta Radiologica, 58, 353 (1962).

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Affiliations

  1. University of Utah, Salt Lake City

    • BRUCE W. CHURCH
    • , RAY D. LLOYD
    • , ROBERT C. PENDLETON
    •  & CHARLES W. MAYS

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https://doi.org/10.1038/207775a0

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