Impact of cross section libraries on CASMO-4E and CASMO-4 results

Karin Rantamäki (Corresponding Author), Silja Häkkinen, Mika Anttila

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    A detailed comparison between the code CASMO-4 and its extended version CASMO-4E has been made. In addition to the standard library, CASMO-4E calculations have been performed also with its extended libraries. The differences are significant enough to be considered when choosing the library to be used for a particular problem. The differences in the multiplication factor k∞ range up to several hundred pcm depending on the void history, burnup and other parameters. The differences in fuel temperature or void coefficients are smaller especially at small void fraction and low burnup. At large void and low burnup CASMO-4E with the standard library gives significantly different results than the other combinations. The microscopic cross sections show small differences when calculated with the same library but clear differences due to the extended libraries.
    Original languageEnglish
    Pages (from-to)2830-2835
    Number of pages6
    JournalAnnals of Nuclear Energy
    Volume38
    Issue number12
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

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    Void fraction
    Temperature

    Cite this

    Rantamäki, Karin ; Häkkinen, Silja ; Anttila, Mika. / Impact of cross section libraries on CASMO-4E and CASMO-4 results. In: Annals of Nuclear Energy. 2011 ; Vol. 38, No. 12. pp. 2830-2835.
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    abstract = "A detailed comparison between the code CASMO-4 and its extended version CASMO-4E has been made. In addition to the standard library, CASMO-4E calculations have been performed also with its extended libraries. The differences are significant enough to be considered when choosing the library to be used for a particular problem. The differences in the multiplication factor k∞ range up to several hundred pcm depending on the void history, burnup and other parameters. The differences in fuel temperature or void coefficients are smaller especially at small void fraction and low burnup. At large void and low burnup CASMO-4E with the standard library gives significantly different results than the other combinations. The microscopic cross sections show small differences when calculated with the same library but clear differences due to the extended libraries.",
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    Impact of cross section libraries on CASMO-4E and CASMO-4 results. / Rantamäki, Karin (Corresponding Author); Häkkinen, Silja; Anttila, Mika.

    In: Annals of Nuclear Energy, Vol. 38, No. 12, 2011, p. 2830-2835.

    Research output: Contribution to journalArticleScientificpeer-review

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