Determination of U, Pu and Am isotopes in Irish Sea sediment by a combination of
AMS and radiometric methods
Samples from a marine sediment core from the Irish Sea (54.416 N, 3.563 W) were analyzed for the isotopic composition of uranium, plutonium and americium by a combination of radiometric methods and AMS. The radiochemical procedure consisted of a Pu separation step by anion exchange, subsequent U separation by extraction chromatography using UTEVA® and finally Am separation with TRU® Resin. Additionally to radiometric determination of these isotopes by alpha spectrometry, the separated samples were also used for the determination of 236U/238U and plutonium isotope ratios by Accelerator Mass Spectrometry (AMS) at the VERA facility.
Keywords: Sellafield, sediment samples, 236U/238U, 240Pu/239Pu, 242Pu/239Pu
SRNCIK Michaela;
HRNECEK Erich;
STEIER P.;
WALLNER G.;
2012-02-14
ELSEVIER SCI LTD
JRC62306
0265-931X,
http://www.sciencedirect.com/science/article/pii/S0265931X11000051,
https://publications.jrc.ec.europa.eu/repository/handle/JRC62306,
10.1016/j.jenvrad.2011.01.004,
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