Deposition of 13C tracer at the JET MKII-HD divertor

Jari Likonen (Corresponding Author), Antti Hakola, J. Strachan, J.P. Coad, A. Widdowson, Seppo Koivuranta, D.E. Hole, K. Mizohata, M. Rubel, S. Jacchmich, M. Stamp, JET-EFDA collaborators

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    Abstract

    Migration of 13C has been investigated at JET by puffing 13CH4 into the outer midplane at the end of the 2007 campaign. The 13C deposition profile was measured with secondary ion mass spectrometry (SIMS) and Rutherford backscattering (RBS) techniques. 13C was mainly found on Tile 1 and near the outer strike point (OSP) on Tile 7. The 13C transport was modelled with the EDGE2D/NIMBUS code. Previous work indicates that migration pathways are: (1) through the main chamber scrape-off layer (SOL), (2) migration through the private flux region (PFR) aided by E × B drifts and (3) neutral migration originating near the strike points. The main contribution of this paper is to further describe the neutral migration.
    Original languageEnglish
    Pages (from-to)S250-S253
    JournalJournal of Nuclear Materials
    Volume415
    Issue number1
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed
    Event19th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, PSI-19 - San Diego, United States
    Duration: 24 May 201028 May 2010

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    Keywords

    • plasma physics
    • divertors

    Cite this

    Likonen, J., Hakola, A., Strachan, J., Coad, J. P., Widdowson, A., Koivuranta, S., Hole, D. E., Mizohata, K., Rubel, M., Jacchmich, S., Stamp, M., & JET-EFDA collaborators (2011). Deposition of 13C tracer at the JET MKII-HD divertor. Journal of Nuclear Materials, 415(1), S250-S253. https://doi.org/10.1016/j.jnucmat.2010.10.076