Effect of nitrogen compounds on transport of ruthenium through the RCS

Ivan Kajan (Corresponding Author), Teemu Kärkelä, Ari Auvinen, Christian Ekberg

    Research output: Contribution to journalArticleScientificpeer-review

    6 Citations (Scopus)


    Ruthenium is a fission product that can be released from the fuel in case of a severe nuclear accident. In this work the impact of the atmosphere composition, including air radiolysis products, on the transport of ruthenium through a primary circuit was examined. Experiments were performed at temperatures 1300, 1500 and 1700 K in a slightly humid air. In the experiments significant effect of nitrogen oxides (N2O, NO2) and nitric acid on the ruthenium chemistry in the model primary circuit was observed. The obtained results indicate a strong effect of air radiolysis products on the quantity partitioning of transported ruthenium to gaseous and aerosol compounds.
    Original languageEnglish
    Pages (from-to)2097-2109
    JournalJournal of Radioanalytical and Nuclear Chemistry
    Issue number3
    Publication statusPublished - 1 Mar 2017
    MoE publication typeA1 Journal article-refereed


    • air radiolysis
    • nuclear accidents
    • primary circuit
    • ruthenium
    • ruthenium tetroxide
    • Primary circuit
    • Air radiolysis
    • Ruthenium
    • Nuclear accidents
    • Ruthenium tetroxide


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