Global migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade

Antti Hakola (Corresponding Author), Seppo Koivuranta, Jari Likonen, M. Groth, T. Kurki-Suonio, V. Lindholm, J. Miettunen, K. Krieger, M. Mayer, H.W. Müller, R. Neu, V. Rohde, P. Petersson, ASDEX Upgrade Team

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)

    Abstract

    We have studied the migration of 13C in ASDEX Upgrade after a global impurity injection experiment in 2011. The main chamber was observed to be the largest deposition region for carbon: almost 35% of the injected atoms end up there. Moreover, gaps between wall tiles account for surface densities which are comparable to those on the plasma-facing surfaces. SOLPS modeling of the experiment produced a set of background plasmas and poloidal flow profiles for simulating the transport of 13C with ASCOT; a match with measured deposition, however, required using an imposed flow profile. ASCOT reproduced the observed localized deposition at the outer midplane but work is needed to explain the measured deposition at the inner side of the torus and at the top of the vessel.
    Original languageEnglish
    Pages (from-to)S694-S697
    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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    Impurities
    Plasmas
    impurities
    Facings
    tiles
    Tile
    profiles
    vessels
    Carbon
    chambers
    Experiments
    injection
    Atoms
    carbon
    atoms

    Cite this

    Hakola, Antti ; Koivuranta, Seppo ; Likonen, Jari ; Groth, M. ; Kurki-Suonio, T. ; Lindholm, V. ; Miettunen, J. ; Krieger, K. ; Mayer, M. ; Müller, H.W. ; Neu, R. ; Rohde, V. ; Petersson, P. ; ASDEX Upgrade Team. / Global migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade. In: Journal of Nuclear Materials. 2013 ; Vol. 438, No. Supplement. pp. S694-S697.
    @article{02d3ab0048274e6bb87624f58cd9a919,
    title = "Global migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade",
    abstract = "We have studied the migration of 13C in ASDEX Upgrade after a global impurity injection experiment in 2011. The main chamber was observed to be the largest deposition region for carbon: almost 35{\%} of the injected atoms end up there. Moreover, gaps between wall tiles account for surface densities which are comparable to those on the plasma-facing surfaces. SOLPS modeling of the experiment produced a set of background plasmas and poloidal flow profiles for simulating the transport of 13C with ASCOT; a match with measured deposition, however, required using an imposed flow profile. ASCOT reproduced the observed localized deposition at the outer midplane but work is needed to explain the measured deposition at the inner side of the torus and at the top of the vessel.",
    author = "Antti Hakola and Seppo Koivuranta and Jari Likonen and M. Groth and T. Kurki-Suonio and V. Lindholm and J. Miettunen and K. Krieger and M. Mayer and H.W. M{\"u}ller and R. Neu and V. Rohde and P. Petersson and {ASDEX Upgrade Team}",
    year = "2013",
    doi = "10.1016/j.jnucmat.2013.01.147",
    language = "English",
    volume = "438",
    pages = "S694--S697",
    journal = "Journal of Nuclear Materials",
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    Hakola, A, Koivuranta, S, Likonen, J, Groth, M, Kurki-Suonio, T, Lindholm, V, Miettunen, J, Krieger, K, Mayer, M, Müller, HW, Neu, R, Rohde, V, Petersson, P & ASDEX Upgrade Team 2013, 'Global migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade', Journal of Nuclear Materials, vol. 438, no. Supplement, pp. S694-S697. https://doi.org/10.1016/j.jnucmat.2013.01.147

    Global migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade. / Hakola, Antti (Corresponding Author); Koivuranta, Seppo; Likonen, Jari; Groth, M.; Kurki-Suonio, T.; Lindholm, V.; Miettunen, J.; Krieger, K.; Mayer, M.; Müller, H.W.; Neu, R.; Rohde, V.; Petersson, P.; ASDEX Upgrade Team.

    In: Journal of Nuclear Materials, Vol. 438, No. Supplement, 2013, p. S694-S697.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Global migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade

    AU - Hakola, Antti

    AU - Koivuranta, Seppo

    AU - Likonen, Jari

    AU - Groth, M.

    AU - Kurki-Suonio, T.

    AU - Lindholm, V.

    AU - Miettunen, J.

    AU - Krieger, K.

    AU - Mayer, M.

    AU - Müller, H.W.

    AU - Neu, R.

    AU - Rohde, V.

    AU - Petersson, P.

    AU - ASDEX Upgrade Team

    PY - 2013

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    AB - We have studied the migration of 13C in ASDEX Upgrade after a global impurity injection experiment in 2011. The main chamber was observed to be the largest deposition region for carbon: almost 35% of the injected atoms end up there. Moreover, gaps between wall tiles account for surface densities which are comparable to those on the plasma-facing surfaces. SOLPS modeling of the experiment produced a set of background plasmas and poloidal flow profiles for simulating the transport of 13C with ASCOT; a match with measured deposition, however, required using an imposed flow profile. ASCOT reproduced the observed localized deposition at the outer midplane but work is needed to explain the measured deposition at the inner side of the torus and at the top of the vessel.

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