Production of (211)At by a vertical beam irradiation method

Appl Radiat Isot. 2014 Dec:94:363-371. doi: 10.1016/j.apradiso.2014.09.012. Epub 2014 Sep 28.

Abstract

We produced (211)At by irradiating the semi-sealed encapsulated Bi target with an external vertical beam. At 28.5MeV, the yield of (211)At was 22MBq/μAh (600μCi/μAh). (211)At was recovered by dry distillation, and 80% of the produced (211)At was successfully obtained in dry Na(211)At form within 2h from the end of bombardment (EOB). The radionuclidic purity of (211)At was >99% at 5h from EOB.

Keywords: (211)At production; Dry distillation; Encapsulated target; Vertical irradiation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Astatine / chemistry*
  • Astatine / isolation & purification
  • Astatine / radiation effects*
  • Bismuth / chemistry*
  • Bismuth / radiation effects*
  • Heavy Ions*
  • Isotope Labeling
  • Radiopharmaceuticals / chemical synthesis*
  • Radiopharmaceuticals / radiation effects

Substances

  • Radiopharmaceuticals
  • Bismuth
  • Astatine