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Abstract
A method is proposed for production of polonium-210 via the 209Bi(α, 3n)210At nuclear reaction. Bombardment of a bismuth-209 target was performed with a 37 MeV alpha-particle beam that leads to the production of astatine-210 (T1/2 = 8.1 h), which decays to polonium-210. It is purified from the bismuth target matrix by employing liquid–liquid extraction using tributyl phosphate (TBP) in para-xylene from 7 M hydrochloric acid. Back extraction of polonium-210 was performed by 9 M nitric acid. This method allows to purify a tracer amount of Po-210 (2.6 · 10–13 mol) from macroscopic amount of Bi (2.8 · 10–2 mol).
Received: 2013-7-26
Accepted: 2014-2-17
Published Online: 2014-4-24
Published in Print: 2014-8-28
©2014 Walter de Gruyter Berlin/Boston
