Activity incorporation into the oxide films on stainless steel samples exposed to primary coolant in Loviisa 1 unit

Martin Bojinov, Ulla Ehrnsten, Petri Kinnunen, Timo Laitinen, Kari Mäkelä, Timo Saario, Pekka Sirkiä, Laura Taivalaho, Thomas Buddas, Magnus Halin, K. Tompuri

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

    2 Citations (Scopus)

    Abstract

    Changes in operational conditions may induce changes in the oxide films and rate of activity incorporation. To predict these changes and find means to affect activity build-up, experimental correlations between water chemistry, oxide film properties and activity incorporation are sought for. Flow-through cells have been installed in the sampling line of Loviisa unit 1 in order to collect the data needed when looking for such correlations. The main sources of activity in the samples are 110mAg and 124Sb. The 124Sb in-corporation was highest during the shutdown to refuelling outage and it seems to be a surface related phenomenon. Because of its long half life, 60Co is also an important isotope. The rate of 60Co content increase is highest during the start-up.
    Original languageEnglish
    Title of host publicationPlant Life Management
    Subtitle of host publicationMidterm status of a R&D project
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages211-240
    ISBN (Electronic)951-38-5728-X
    ISBN (Print)951-38-5727-1
    Publication statusPublished - 2001
    MoE publication typeA4 Article in a conference publication
    EventPlant Life Management: Midterm status of a R&D project - Espoo, Finland
    Duration: 1 Jan 20011 Jan 2001

    Publication series

    SeriesVTT Symposium
    Number218
    ISSN0357-9387

    Conference

    ConferencePlant Life Management
    CountryFinland
    CityEspoo
    Period1/01/011/01/01

    Fingerprint Dive into the research topics of 'Activity incorporation into the oxide films on stainless steel samples exposed to primary coolant in Loviisa 1 unit'. Together they form a unique fingerprint.

    Cite this