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Determination of the 240Pu/239Pu atom ratio in global fallout at two locations in the Northern Hemisphere

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Summary

Extensive soil and sediment sampling was conducted along the Colorado Front Range and the plains east of the Front Range at locations believed to only be exposed to global fallout. The average 240Pu/239Pu atom ratio in the samples collected in Colorado was determined to be 0.165±0.008. A limited number of samples were collected at various locations in the Arctic at approximately 70° N latitude. Analyses of these samples predict that the 240Pu/239Pu atom ratio in environmental samples collected at 70° N latitude at locations only containing fallout is 0.183±0.009. These results provide data that help to precisely define the 240Pu/239Pu atom ratios representative of global fallout at the two locations studied.

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Authors and Affiliations

  1. Isotope and Nuclear Chemistry Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

    D. W. Efurd

  2. Isotope and Nuclear Chemistry Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

    R. E. Steiner

  3. Isotope and Nuclear Chemistry Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

    F. R. Roensch

  4. Isotope and Nuclear Chemistry Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

    S. E. Glover

  5. Isotope and Nuclear Chemistry Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

    J. A. Musgrave

Authors
  1. D. W. Efurd
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  2. R. E. Steiner
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  3. F. R. Roensch
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  4. S. E. Glover
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  5. J. A. Musgrave
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Efurd, D., Steiner, R., Roensch, F. et al. Determination of the 240Pu/239Pu atom ratio in global fallout at two locations in the Northern Hemisphere. J Radioanal Nucl Chem 263, 387–391 (2005). https://doi.org/10.1007/s10967-005-0599-7

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  • DOI: https://doi.org/10.1007/s10967-005-0599-7

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