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Generator of actinium-225

  • Research and Development of Isotopes
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Abstract

Dependence upon pH of Ac and Th distribution coefficients between the cation exchange resin and buffer citrate solutions had been investigated; the optimal conditions are suggested for effective separation of the elements in this system. These results are in successful accordance with such conditions calculated on the basement of Ac and Th citrate complex formation constants.

The generator method for225 Ac periodical separation from229 Th samples is developed.229 Th storage in solution between separations excludes the contamination of actinium final solution with radiolysis products and provides 100-% yield of this isotope and its high radiochemical purity. The parent nuclide loss after continuous use of the generator does not take place.

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Authors and Affiliations

  1. Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980, Dubna, Moscow Region, (Russia)

    V. Tsoupko-Sitnikov, Yu. Norseev & V. Khalkin

Authors
  1. V. Tsoupko-Sitnikov
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  2. Yu. Norseev
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  3. V. Khalkin
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Tsoupko-Sitnikov, V., Norseev, Y. & Khalkin, V. Generator of actinium-225. Journal of Radioanalytical and Nuclear Chemistry, Articles 205, 75–83 (1996). https://doi.org/10.1007/BF02040552

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  • DOI: https://doi.org/10.1007/BF02040552

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