Erosion and deposition on JET divertor and limiter tiles during the experimental campaigns 2005-2009

S. Krat (Corresponding Author), J.P. Coad, Y. Gasparyan, Antti Hakola, Jari Likonen, M. Mayer, A. Pisarev, A. Widdowson, JET-EFDA collaborators

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    Abstract

    Erosion from and deposition on JET divertor tiles used during the 2007–2009 campaign and on inner wall guard limiter (IWGL) tiles used during 2005–2009 are studied. The tungsten coating on the divertor tiles was mostly intact with the largest erosion ∼30% in a small local area. Locally high erosion areas were observed on the load bearing divertor tile 5 and on the horizontal surface of the divertor tile 8. The IWGL tiles show a complicated distribution of erosion and deposition areas. The total amount of carbon deposited on the all IWGL tiles during the campaign 2005–2009 is estimated to be 65 g. The density of carbon deposits is estimated to be 0.67–0.83 g/cm3.
    Original languageEnglish
    Pages (from-to)S742-S745
    Number of pages4
    JournalJournal of Nuclear Materials
    Volume438
    Issue numberSupplement
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed
    Event20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany
    Duration: 21 May 201225 May 2012

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    Krat, S., Coad, J. P., Gasparyan, Y., Hakola, A., Likonen, J., Mayer, M., Pisarev, A., Widdowson, A., & JET-EFDA collaborators (2013). Erosion and deposition on JET divertor and limiter tiles during the experimental campaigns 2005-2009. Journal of Nuclear Materials, 438(Supplement), S742-S745. https://doi.org/10.1016/j.jnucmat.2013.01.158