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Determination of uranium isotopic composition in aqueous solutions by combined gamma-spectrometry and X-ray fluorescence

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Abstract

The possibility of use of combined gamma spectrometry and X-ray fluorescence for uranium isotopic analysis in dilute aqueous solutions has been studied. Uranium K X-rays were excited by gamma-rays of57Co radionuclide source and were measured together with 185.7 keV gamma-rays of235U using a planar pure Ge detector. Uranium Kα1 fluorescent X-rays were used for the evaluation. The method was proved to be independent of total uranium concentration in the region of 8–20 mg U/ml. The procedure making use of measurement of 7 ml samples and allowing to achieve an accuracy better then 1% in the region of 0.4–4.5 at. % of235U is proposed.

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Authors and Affiliations

  1. Department of Nuclear Chemistry, Technical University of Prague, Břehová 7, 115 19, Prague 1, (Czechoslovakia)

    J. John, F. Šebesta & J. Sedláček

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  1. J. John
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  2. F. Šebesta
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  3. J. Sedláček
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John, J., Šebesta, F. & Sedláček, J. Determination of uranium isotopic composition in aqueous solutions by combined gamma-spectrometry and X-ray fluorescence. J. Radioanal. Chem. 78, 367–374 (1983). https://doi.org/10.1007/BF02530447

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  • DOI: https://doi.org/10.1007/BF02530447

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