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Extraction chromatographic separation of carrier-free Tb and Pm generated in (p, xn)-type nuclear reactions

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Abstract

The nuclear reactions of (p, xn)-type, Ep=100–120 MeV, on Gd and Nd have been used to produce highly radioactive preparations of Tb and Pm enriched with neutron-deficient isotopes. Under comparable conditions the yields of practically all isotopes are considerably higher than in Tb and Gd spallation reactions at Ep=660 MeV. The radioactivity of screened154Tb and156Tb isotopes has been increased more than 40 times. Tb and Pm were separated from gram amounts of the target-elements by the extraction chromatography technique with undiluted di-(2-ethylhexyl) phosphoric acid as stationary phase. The radiochemical method developed was also applied to separate the radiochemically pure preparation of161Tb from Gd oxide irradiated with thermal neutrons.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, (USSR)

    Do Kim Tiung, N. A. Lebedev, Nguyen Quang Main & V. A. Khalkin

Authors
  1. Do Kim Tiung
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  2. N. A. Lebedev
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  3. Nguyen Quang Main
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  4. V. A. Khalkin
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Tiung, D.K., Lebedev, N.A., Main, N.Q. et al. Extraction chromatographic separation of carrier-free Tb and Pm generated in (p, xn)-type nuclear reactions. J. Radioanal. Chem. 30, 353–360 (1976). https://doi.org/10.1007/BF02516968

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  • DOI: https://doi.org/10.1007/BF02516968

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