Secondary ionization mass spectrometric analysis of impurity element isotope ratios in nuclear reactor materials

D.C. Gerlach, John Cliff, D.E. Hurley, B.D. Reid, W.W. Little, G.H. Meriwether, A.J. Wickham, T.A. Simmons

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Abstract

During reactor operations and fuel burn up, some isotopic abundances change due to nuclear reactions and provide sensitive indicators of neutron fluence and fuel burnup. Secondary ion mass spectrometry (SIMS) analysis has been used to measure isotope ratios of selected impurity elements in irradiated nuclear reactor graphite. Direct SIMS measurements were made in graphite samples, following shaping and surface cleaning. Models predicting local fuel burnup based on isotopic measurements of B and Li isotopes by SIMS agreed well with U and Pu isotopic measurements obtained by thermal ionization mass spectrometry (TIMS). (c) 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)7041-7044
JournalApplied Surface Science
Volume252
Issue number19
DOIs
Publication statusPublished - 2006

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    Gerlach, D. C., Cliff, J., Hurley, D. E., Reid, B. D., Little, W. W., Meriwether, G. H., ... Simmons, T. A. (2006). Secondary ionization mass spectrometric analysis of impurity element isotope ratios in nuclear reactor materials. Applied Surface Science, 252(19), 7041-7044. https://doi.org/10.1016/j.apsusc.2006.02.221