Institute for Nuclear Waste Disposal

VESPA II: Behavior of long-lived fission and activation products in the near-filed of nuclear waste repositories in different host rocks and analysis of retention potentials

  • contact:

    Marcus Altmaier

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  • Partner:

    Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH (GRS)

    Forschungszentrum Jülich, Institut für Energie- und Klimaforschung, (FZJ-IEK-6)

    Helmholtz-Zentrum Dresden Rossendorf, Institut für Ressourcenökologie (HZDR-IRE)

    Karlsruher Institut für Technologie, Institut für Nukleare Entsorgung (KIT-INE)

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Within VESPA II, the behavior of mainly anionic radionuclides is investigated in repository relevant systems. The knowledge on the retention of anionic radionuclides under various geochemical conditions is limited. Aim of the work in VESPA II is to derive an improved understanding of key retention mechanisms. The focus of the studies of KIT-INE centers on the nuclides 99Tc,  79Se, and 129I, and considers aquatic chemistry, mineral-radionuclide interactions and the release form irradiated nuclear fuel.