New stochastic substep based burnup scheme for Serpent 2

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    A new substep based burnup algorithm was implemented into Serpent 2 combining the previously implemented Stochastic Implicit Euler (SIE) and substep based burnup solutions. The implemented algorithm was shown to reproduce the gadolinium depletion better than the standard SIE algorithm in a miniassembly case while still producing stable results in a 3D coupled burnup calculation with fuel behavior feedback.
    Original languageEnglish
    Title of host publicationProceedings of PHYSOR 2018, Cancun, Mexico
    PublisherAmerican Nuclear Society ANS
    Publication statusAccepted/In press - 2018
    MoE publication typeNot Eligible
    EventPHYSOR 2018: Reactor Physics Paving The Way Towards More Efficient Systems - Cancun, Mexico
    Duration: 22 Apr 201826 Apr 2018


    ConferencePHYSOR 2018
    Abbreviated titlePHYSOR 2018



    • Monte Carlo
    • Burnup
    • Serpent 2
    • Substep
    • Stochastic Implicit Euler

    Cite this

    Valtavirta, V., & Leppänen, J. (Accepted/In press). New stochastic substep based burnup scheme for Serpent 2. In Proceedings of PHYSOR 2018, Cancun, Mexico (pp. 523-534). American Nuclear Society ANS.