Verification of MultiTrans calculations by the VENUS-3 benchmark experiment

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


    The MultiTrans software has been developed at VTT Technical Research Centre of Finland for 3D radiation transport problems. Adaptive tree multigrid technique is used as a deterministic solution method. This enables local refinement of the calculation grid combined with the use of effective multigrid acceleration on tree-structured nested grids: starting from a fast solution on coarse grid, successive solutions are obtained on finer and finer grids. In the MultiTrans code, simplified spherical harmonics (SP3) radiation transport approximation is used. In order to test the applicability of the new MultiTrans code to reactor dosimetry problems, light water reactor pressure vessel steel (LWR-PVS) benchmark experiment VENUS-3 (with partial length shielded assemblies) was chosen. The results show good agreement to the experimental reaction rates of the VENUS-3 benchmark, demonstrating the applicability of the new MultiTrans code in reactor dosimetry.

    Original languageEnglish
    Title of host publicationReactor Dosimetry: 12th International Symposium
    Place of PublicationWest Conshohocken
    PublisherAmerican Society for Testing and Materials (ASTM)
    Number of pages6
    ISBN (Print)978-0-8031-3412-6, 978-0-8031-6242-6
    Publication statusPublished - 1 Jan 2006
    MoE publication typeA4 Article in a conference publication
    Event12th International Symposium on Reactor Dosimetry - Gatlinburg, TN, United States
    Duration: 8 May 200513 May 2005

    Publication series

    SeriesASTM Special Technical Publication


    Conference12th International Symposium on Reactor Dosimetry
    Country/TerritoryUnited States
    CityGatlinburg, TN


    • MultiTrans
    • Radiation transport
    • Reactor dosimetry
    • Tree multigrids
    • VENUS-3 benchmark


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