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

C. Zona, M. L. Bonardi, F. Groppi, S. Morzenti, L. Canella, E. Persico, E. Menapace, Z. B. Alfassi, K. Abbas, U. Holzwarth, N. Gibson

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14 Scopus citations

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.

Original languageEnglish
Pages (from-to)819-824
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume276
Issue number3
DOIs
StatePublished - 1 Jun 2008

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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