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High temperature Raman study of UO 2 : A possible tool for in situ estimation of irradiation‐induced heating
Author(s) -
Guimbretière G.,
Canizarès A.,
Raimboux N.,
Joseph J.,
Desgardin P.,
Desgranges L.,
Jegou C.,
Simon P.
Publication year - 2015
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.4661
Subject(s) - raman spectroscopy , irradiation , anharmonicity , atmospheric temperature range , in situ , phonon , uranium , analytical chemistry (journal) , range (aeronautics) , materials science , chemistry , thermodynamics , optics , condensed matter physics , physics , nuclear physics , composite material , metallurgy , organic chemistry
Recently, in situ Raman setups under irradiation become available, and uranium dioxide is one of the most studied compounds. This paper reports the temperature dependence of the only Raman‐active mode in fluorine UO 2 . Besides the interest in terms of phonon anharmonicity knowledge, this can be used to estimate the heating induced by irradiation: The frequency shift and width of the T 2g peak can be used as an internal indirect probe of the local temperature in the 20–590 °C range. Copyright © 2015 John Wiley & Sons, Ltd.