Title: Prototypic corium analysis: a round robin for SEM and EDS characterization
Authors: BRISSONNEAU L.JOURNEAU ChristophePILUSO P.KISELOVA M.BAKARDJIEVA S.WISS ThierryBOTTOMLEY PaulTHIELE Hartmut
Citation: IOP Conference Series: Materials Science and Engineering vol. 32 p. 012005
Publisher: IOP PUBLISHING LTD
Publication Year: 2012
JRC N°: JRC67619
ISSN: 1757-8981
URI: http://iopscience.iop.org/1757-899X/32/1/012005
http://publications.jrc.ec.europa.eu/repository/handle/JRC67619
DOI: 10.1088/1757-899X/32/1/012005
Type: Articles in periodicals and books
Abstract: In case of a nuclear reactor severe accident, the core could melt, forming a high temperature mixture called corium. A uranium oxide-containing sample from a corium-concrete interaction test has been analyzed by Scanning Electron Microscopy (SEM) and X-Ray Energy Dispersion Spectrometry (EDS) at three different laboratories. In all the measured windows, the composition lay on or close to the line connecting the initial corium melt composition to the concrete average composition. The round robin exercise confirmed that SEM and EDS analysis can be used confidently to perform fast and good quality local corium analyses and provide local quantitative compositions in the metallic elements of corium with an uncertainty of 10% of the measured value. Differences up to 25% of the measured value were found for the oxygen content, although two of the laboratories provided very close results.
JRC Directorate:Nuclear Safety and Security

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