Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade

Leena Aho-Mantila (Corresponding Author), M. Wischmeier, K. Krieger, V. Rohde, H.W. Müller, D.P. Coster, M. Groth, A. Kirschner, R. Neu, S. Potzel, B. Sieglin, E. Wolfrum, ASDEX Upgrade Team

    Research output: Contribution to journalArticleScientificpeer-review

    11 Citations (Scopus)

    Abstract

    Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.
    Original languageEnglish
    Pages (from-to)S231-S234
    Number of pages4
    JournalJournal of Nuclear Materials
    Volume415
    Issue number1, Supplement
    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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    Fusion reactor divertors
    Carbon
    carbon
    Plasmas
    plasma currents
    upstream
    Magnetic fields
    magnetic fields

    Cite this

    Aho-Mantila, L., Wischmeier, M., Krieger, K., Rohde, V., Müller, H. W., Coster, D. P., ... ASDEX Upgrade Team (2011). Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade. Journal of Nuclear Materials, 415(1, Supplement), S231-S234. https://doi.org/10.1016/j.jnucmat.2010.10.080
    Aho-Mantila, Leena ; Wischmeier, M. ; Krieger, K. ; Rohde, V. ; Müller, H.W. ; Coster, D.P. ; Groth, M. ; Kirschner, A. ; Neu, R. ; Potzel, S. ; Sieglin, B. ; Wolfrum, E. ; ASDEX Upgrade Team. / Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade. In: Journal of Nuclear Materials. 2011 ; Vol. 415, No. 1, Supplement. pp. S231-S234.
    @article{d410c36807ea4ab9bd6620f05446fe64,
    title = "Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade",
    abstract = "Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32{\%} of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.",
    author = "Leena Aho-Mantila and M. Wischmeier and K. Krieger and V. Rohde and H.W. M{\"u}ller and D.P. Coster and M. Groth and A. Kirschner and R. Neu and S. Potzel and B. Sieglin and E. Wolfrum and {ASDEX Upgrade Team}",
    year = "2011",
    doi = "10.1016/j.jnucmat.2010.10.080",
    language = "English",
    volume = "415",
    pages = "S231--S234",
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    Aho-Mantila, L, Wischmeier, M, Krieger, K, Rohde, V, Müller, HW, Coster, DP, Groth, M, Kirschner, A, Neu, R, Potzel, S, Sieglin, B, Wolfrum, E & ASDEX Upgrade Team 2011, 'Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade', Journal of Nuclear Materials, vol. 415, no. 1, Supplement, pp. S231-S234. https://doi.org/10.1016/j.jnucmat.2010.10.080

    Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade. / Aho-Mantila, Leena (Corresponding Author); Wischmeier, M.; Krieger, K.; Rohde, V.; Müller, H.W.; Coster, D.P.; Groth, M.; Kirschner, A.; Neu, R.; Potzel, S.; Sieglin, B.; Wolfrum, E.; ASDEX Upgrade Team.

    In: Journal of Nuclear Materials, Vol. 415, No. 1, Supplement, 2011, p. S231-S234.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Effect of E × B driven transport on the deposition of carbon in the outer divertor of ASDEX Upgrade

    AU - Aho-Mantila, Leena

    AU - Wischmeier, M.

    AU - Krieger, K.

    AU - Rohde, V.

    AU - Müller, H.W.

    AU - Coster, D.P.

    AU - Groth, M.

    AU - Kirschner, A.

    AU - Neu, R.

    AU - Potzel, S.

    AU - Sieglin, B.

    AU - Wolfrum, E.

    AU - ASDEX Upgrade Team

    PY - 2011

    Y1 - 2011

    N2 - Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.

    AB - Reversal of the toroidal magnetic field and plasma current is observed to considerably change the re-deposition of 13C injected into the outer divertor scrape-off layer of ASDEX Upgrade. In forward field low-density L-mode plasmas, 24–32% of injected carbon is found locally re-deposited. The deposition tails are aligned toroidally both upstream and downstream of the exit holes and indicate transport towards the strike point. In reversed field with similar main plasma parameters, the re-deposition efficiency is a factor of 2 smaller. The deposition is more localized and shows transport towards the outer scrape-off layer. Numerical modelling with the SOLPS5.0 and ERO codes shows that these differences in 13C deposition can be attributed to the combination of the E × B drift reversal directly influencing the transport of carbon and changes in local plasma conditions due to the drift reversal.

    U2 - 10.1016/j.jnucmat.2010.10.080

    DO - 10.1016/j.jnucmat.2010.10.080

    M3 - Article

    VL - 415

    SP - S231-S234

    JO - Journal of Nuclear Materials

    JF - Journal of Nuclear Materials

    SN - 0022-3115

    IS - 1, Supplement

    ER -