Dry-distillation of astatine-211 from irradiated bismuth targets: a time-saving procedure with high recovery yields
Abstract
Astatine-211 was produced via the 209Bi(α,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:
-
Applied Radiation and Isotopes
- Pub Date:
- 2001
- DOI:
- 10.1016/S0969-8043(01)00044-6
- Bibcode:
- 2001AppRI..55..157L
- Keywords:
-
- <SUP>211</SUP>At;
- Dry-distillation