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A route for polonium 210 production from alpha-particle irradiated bismuth-209 target

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).
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Submitted on : Thursday, June 19, 2014 - 10:57:53 AM
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Ali Younes, Gilles Montavon, Cyrille Alliot, Marcel Mokili, Ferid Haddad, et al.. A route for polonium 210 production from alpha-particle irradiated bismuth-209 target. Radiochimica Acta, R Oldenbourg Verlag GMBH, 2014, 35, pp.77-90. ⟨10.1515/ract-2013-2171⟩. ⟨in2p3-01010060⟩

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