Time step length versus efficiency of Monte Carlo burnup calculations

J. Dufek (Corresponding Author), Ville Valtavirta

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)


    We demonstrate that efficiency of Monte Carlo burnup calculations can be largely affected by the selected time step length. This study employs the stochastic implicit Euler based coupling scheme for Monte Carlo burnup calculations that performs a number of inner iteration steps within each time step. In a series of calculations, we vary the time step length and the number of inner iteration steps; the results suggest that Monte Carlo burnup calculations get more efficient as the time step length is reduced. More time steps must be simulated as they get shorter; however, this is more than compensated by the decrease in computing cost per time step needed for achieving a certain accuracy.
    Original languageEnglish
    Pages (from-to)409-412
    Number of pages4
    JournalAnnals of Nuclear Energy
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed


    • Monte Carlo burnup
    • coupling schemes
    • implicit Euler method
    • nuclear reactors


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