Study on irradiation behavior of MOX fuel used in LWR

Nobuo Nakae, Toshikazu Baba, Katsuichiro Kamimura, Frédéric Jutier, Marc Verwerft

    Research outputpeer-review


    The microstructure of fresh MOX fuel pellet is mainly composed of low, medium and high plutonium enriched zones, which is characteristic of MOX fabricated by the Micronized MASterblend (MIMAS) process. It is considered that such kind of microstructure has a major influence on the fission gas behavior in MOX fuel. Fission gas release values were measured by means of puncture test and 85Kr gamma spectrometry. The distribution of the fission product Xe and Cs in MOX fuel pellet were measured by the Electron Probe MicroAnalysis (EPMA) technique. Using irradiation data, the kinetics of fission gas atoms are examined and discussed in this paper in order to contribute to the improvement of MOX fuel performance in LWRs.
    Original languageEnglish
    Title of host publicationFontevraud 7 proceedings
    Place of PublicationParis, France
    StatePublished - Sep 2010
    Event2010 - FONTEVRAUD 7: Contribution of Materials Investigations and Operating Experience to Light Water NPPs’ Safety, Performance and Reliability - French Nuclear Energy Society (SFEN), Avignon
    Duration: 26 Sep 201026 Sep 2010


    Conference2010 - FONTEVRAUD 7

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