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Wet-chemistry method for the separation of no-carrier-added 211At/211gPo from 209Bi target irradiated by alpha-beam in cyclotron

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Abstract

We present a fast and effective wet-chemistry method, used to obtain the pure alpha-emitter 211At/211gPo (T 1/2 = 7.214 h/516 ms), produced by 209Bi(α,2n) reaction in NCA form. It is a selective radiochemical separation of the At radionuclides from the target and the impurities, characterized by a radionuclidic purity close to 100%, based on the dissolution and the dilution of the irradiated target in acidic medium, on the extraction with DIPE, followed by the back-extraction with NaOH. As a result, we obtain a yield greater than 90–97% in a range from 0.75M to 2.00M.

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Authors and Affiliations

  1. LASA, Radiochemistry Laboratory, Università degli Studi di Milano and INFN, via F.lli Cervi 201, I-20090, Segrate, Milano, Italy

    C. Zona, M. L. Bonardi, F. Groppi, S. Morzenti, L. Canella & E. Persico

  2. Division for Advanced Physics Technologies, ENEA, via Don Fiammelli 2, I-40128, Bologna, Italy

    E. Menapace

  3. Department of Nuclear Engineering, Ben Gurion University of the Negev, Il-84105, Beer Sheva, Israel

    Z. B. Alfassi

  4. Institute for Health and Consumer Protection, IHCP, JRC-Ispra, Varese, Italy

    K. Abbas, U. Holzwarth & N. Gibson

Authors
  1. C. Zona
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  2. M. L. Bonardi
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  3. F. Groppi
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  4. S. Morzenti
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  5. L. Canella
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  6. E. Persico
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  7. E. Menapace
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  8. Z. B. Alfassi
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  9. K. Abbas
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  10. U. Holzwarth
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  11. N. Gibson
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Correspondence to C. Zona.

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Zona, C., Bonardi, M.L., Groppi, F. et al. Wet-chemistry method for the separation of no-carrier-added 211At/211gPo from 209Bi target irradiated by alpha-beam in cyclotron. J Radioanal Nucl Chem 276, 819–824 (2008). https://doi.org/10.1007/s10967-008-0638-2

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  • DOI: https://doi.org/10.1007/s10967-008-0638-2

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