Erosion of tungsten and carbon markers in the outer divertor of ASDEX-Upgrade

M. Mayer, V. Rohde, G. Ramos, Elizaveta Vainonen-Ahlgren, Jari Likonen, J.L. Chen

    Research output: Contribution to journalArticleScientificpeer-review

    28 Citations (Scopus)

    Abstract

    The erosion of tungsten and carbon marker layers was studied in the outer divertor of ASDEX Upgrade. The outer strike point area and a large fraction of the outer baffle are net erosion areas for both materials.
    The net erosion rate of carbon is about 10–20 times larger than the net erosion rate of tungsten.
    The erosion is strongly inhomogeneous due to surface roughness, with a large erosion on plasma exposed areas of the rough surfaces, and deposition in recessions and pores.
    Original languageEnglish
    Pages (from-to)106-110
    JournalPhysica Scripta
    Volume2007
    Issue numberT128
    DOIs
    Publication statusPublished - 2007
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Erosion
    markers
    erosion
    Carbon
    tungsten
    carbon
    Baffle
    recession
    baffles
    Rough Surface
    Surface Roughness
    surface roughness
    Plasma
    porosity

    Keywords

    • JET
    • plasma
    • fusion energy
    • fusion reactors
    • ITER
    • plasma toroidal confinement
    • divertor tiles
    • tungsten
    • plasma-wall interactions

    Cite this

    Mayer, M., Rohde, V., Ramos, G., Vainonen-Ahlgren, E., Likonen, J., & Chen, J. L. (2007). Erosion of tungsten and carbon markers in the outer divertor of ASDEX-Upgrade. Physica Scripta, 2007(T128), 106-110. https://doi.org/10.1088/0031-8949/2007/T128/021
    Mayer, M. ; Rohde, V. ; Ramos, G. ; Vainonen-Ahlgren, Elizaveta ; Likonen, Jari ; Chen, J.L. / Erosion of tungsten and carbon markers in the outer divertor of ASDEX-Upgrade. In: Physica Scripta. 2007 ; Vol. 2007, No. T128. pp. 106-110.
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    abstract = "The erosion of tungsten and carbon marker layers was studied in the outer divertor of ASDEX Upgrade. The outer strike point area and a large fraction of the outer baffle are net erosion areas for both materials. The net erosion rate of carbon is about 10–20 times larger than the net erosion rate of tungsten. The erosion is strongly inhomogeneous due to surface roughness, with a large erosion on plasma exposed areas of the rough surfaces, and deposition in recessions and pores.",
    keywords = "JET, plasma, fusion energy, fusion reactors, ITER, plasma toroidal confinement, divertor tiles, tungsten, plasma-wall interactions",
    author = "M. Mayer and V. Rohde and G. Ramos and Elizaveta Vainonen-Ahlgren and Jari Likonen and J.L. Chen",
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    Mayer, M, Rohde, V, Ramos, G, Vainonen-Ahlgren, E, Likonen, J & Chen, JL 2007, 'Erosion of tungsten and carbon markers in the outer divertor of ASDEX-Upgrade', Physica Scripta, vol. 2007, no. T128, pp. 106-110. https://doi.org/10.1088/0031-8949/2007/T128/021

    Erosion of tungsten and carbon markers in the outer divertor of ASDEX-Upgrade. / Mayer, M.; Rohde, V.; Ramos, G.; Vainonen-Ahlgren, Elizaveta; Likonen, Jari; Chen, J.L.

    In: Physica Scripta, Vol. 2007, No. T128, 2007, p. 106-110.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Erosion of tungsten and carbon markers in the outer divertor of ASDEX-Upgrade

    AU - Mayer, M.

    AU - Rohde, V.

    AU - Ramos, G.

    AU - Vainonen-Ahlgren, Elizaveta

    AU - Likonen, Jari

    AU - Chen, J.L.

    PY - 2007

    Y1 - 2007

    N2 - The erosion of tungsten and carbon marker layers was studied in the outer divertor of ASDEX Upgrade. The outer strike point area and a large fraction of the outer baffle are net erosion areas for both materials. The net erosion rate of carbon is about 10–20 times larger than the net erosion rate of tungsten. The erosion is strongly inhomogeneous due to surface roughness, with a large erosion on plasma exposed areas of the rough surfaces, and deposition in recessions and pores.

    AB - The erosion of tungsten and carbon marker layers was studied in the outer divertor of ASDEX Upgrade. The outer strike point area and a large fraction of the outer baffle are net erosion areas for both materials. The net erosion rate of carbon is about 10–20 times larger than the net erosion rate of tungsten. The erosion is strongly inhomogeneous due to surface roughness, with a large erosion on plasma exposed areas of the rough surfaces, and deposition in recessions and pores.

    KW - JET

    KW - plasma

    KW - fusion energy

    KW - fusion reactors

    KW - ITER

    KW - plasma toroidal confinement

    KW - divertor tiles

    KW - tungsten

    KW - plasma-wall interactions

    U2 - 10.1088/0031-8949/2007/T128/021

    DO - 10.1088/0031-8949/2007/T128/021

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    JO - Physica Scripta

    JF - Physica Scripta

    SN - 0031-8949

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    ER -