Preventing xenon oscillations in Monte Carlo burnup calculations by enforcing equilibrium xenon distribution

A.E. Isotalo (Corresponding Author), Jaakko Leppänen, J. Dufek

    Research output: Contribution to journalArticleScientificpeer-review

    31 Citations (Scopus)

    Abstract

    Existing Monte Carlo burnup codes suffer from instabilities caused by spatial xenon oscillations. These oscillations can be prevented by forcing equilibrium between the neutron flux and saturated xenon distribution. The equilibrium calculation can be integrated to Monte Carlo neutronics, which provides a simple and lightweight solution that can be used with any of the existing burnup calculation algorithms. The stabilizing effect of this approach, as well as its limitations are demonstrated using the reactor physics code Serpent.
    Original languageEnglish
    Pages (from-to)78-85
    Number of pages10
    JournalAnnals of Nuclear Energy
    Volume60
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed

    Keywords

    • burnup calculations
    • Monte Carlo
    • spatial stability
    • xenon oscillations

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