Local deposition of 13C tracer in the JET MKII-HD divertor

Jari Likonen (Corresponding Author), Markus Airila, Paul Coad, Antti Hakola, Seppo Koivuranta, E. Ahonen, E. Alves, N. Barradas, A. Widdowson, M. Rubel, S. Brezinsek, M.ag Groth, JET-EFDA collaborators

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    Abstract

    Migration and deposition of 13C have been investigated at JET by injecting 13C-labelled methane at the outer divertor base at the end of the 2009 campaign. The 13C deposition profile was measured with enhanced proton scattering (EPS) and secondary ion mass spectrometry (SIMS) techniques. A strong toroidal deposition band for 13C was observed experimentally on each of the analysed four outer divertor floor tiles. In addition, 13C was also found on the vertical edge of load bearing tile (LBT) and at the bottom of the LBT tile facing the puffing hole. Local 13C migration in the vicinity of the injection location was modelled by the ERO code. The ERO simulations also produced the strong toroidal 13C deposition band but there is strong deposition also on the vertical edge of the LBT tile and elsewhere on the horizontal part of the outer divertor floor tile.
    Original languageEnglish
    Pages (from-to)S762-S765
    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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    Likonen, J., Airila, M., Coad, P., Hakola, A., Koivuranta, S., Ahonen, E., Alves, E., Barradas, N., Widdowson, A., Rubel, M., Brezinsek, S., Groth, M. A., & JET-EFDA collaborators (2013). Local deposition of 13C tracer in the JET MKII-HD divertor. Journal of Nuclear Materials, 438(Supplement), S762-S765. https://doi.org/10.1016/j.jnucmat.2013.01.163