Dry-distillation of astatine-211 from irradiated bismuth targets: a time-saving procedure with high recovery yields

Appl Radiat Isot. 2001 Aug;55(2):157-60. doi: 10.1016/s0969-8043(01)00044-6.

Abstract

Astatine-211 was produced via the 209Bi(alpha,2n) 211At reaction. The radionuclide was isolated with a novel procedure employing dry-distillation of the irradiated target material. The astatine was condensed as a dry residue in a PEEK-capillary cryotrap. Distillation was completed within 1-2 min with isolation yields of 92 +/- 3%. Subsequent work-up of the nuclide resulted in final recovery yields of 79 +/- 3%.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Astatine / chemistry
  • Astatine / isolation & purification*
  • Astatine / radiation effects
  • Bismuth / chemistry*
  • Half-Life
  • Radiochemistry / instrumentation
  • Radiochemistry / methods
  • Radioisotopes / chemistry
  • Radioisotopes / isolation & purification*

Substances

  • Radioisotopes
  • Bismuth
  • Astatine