Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade

L. Aho-Mantila (Corresponding Author), X. Bonnin, D.P. Coster, C. Lowry, M. Wischmeier, S. Brezinsek, G. Federici, ASDEX Upgrade Team, JET-EFDA Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)

    Abstract

    Effects of N-seeding in L-mode experiments in ASDEX Upgrade and JET are analysed numerically with the SOLPS5.0 code package. The modelling yields 3 qualitatively different radiative regimes with increasing N concentration, when initially attached outer divertor conditions are studied. The radiation pattern is observed to evolve asymmetrically, with radiation increasing first in the inner divertor, then in the outer divertor, and finally on closed field lines above the X-point. The properties of these radiative regimes are observed to be sensitive to cross-field drifts and they differ between the two devices. The modelled scaling of the divertor radiated power with the divertor neutral pressure is similar to an experimental scaling law for H-mode radiation. The same parametric dependencies are not observed in simulations without drifts.
    Original languageEnglish
    Pages (from-to)546-550
    JournalJournal of Nuclear Materials
    Volume463
    DOIs
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    scaling
    Radiation
    Scaling laws
    radiation
    inoculation
    Experiments
    scaling laws
    simulation

    Cite this

    Aho-Mantila, L., Bonnin, X., Coster, D. P., Lowry, C., Wischmeier, M., Brezinsek, S., ... Contributors, JET-EFDA. (2015). Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade. Journal of Nuclear Materials, 463, 546-550. https://doi.org/10.1016/j.jnucmat.2014.11.049
    Aho-Mantila, L. ; Bonnin, X. ; Coster, D.P. ; Lowry, C. ; Wischmeier, M. ; Brezinsek, S. ; Federici, G. ; Team, ASDEX Upgrade ; Contributors, JET-EFDA. / Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade. In: Journal of Nuclear Materials. 2015 ; Vol. 463. pp. 546-550.
    @article{2b280912fb214c6db5f7ac1f7e53e21a,
    title = "Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade",
    abstract = "Effects of N-seeding in L-mode experiments in ASDEX Upgrade and JET are analysed numerically with the SOLPS5.0 code package. The modelling yields 3 qualitatively different radiative regimes with increasing N concentration, when initially attached outer divertor conditions are studied. The radiation pattern is observed to evolve asymmetrically, with radiation increasing first in the inner divertor, then in the outer divertor, and finally on closed field lines above the X-point. The properties of these radiative regimes are observed to be sensitive to cross-field drifts and they differ between the two devices. The modelled scaling of the divertor radiated power with the divertor neutral pressure is similar to an experimental scaling law for H-mode radiation. The same parametric dependencies are not observed in simulations without drifts.",
    author = "L. Aho-Mantila and X. Bonnin and D.P. Coster and C. Lowry and M. Wischmeier and S. Brezinsek and G. Federici and Team, {ASDEX Upgrade} and JET-EFDA Contributors",
    year = "2015",
    doi = "10.1016/j.jnucmat.2014.11.049",
    language = "English",
    volume = "463",
    pages = "546--550",
    journal = "Journal of Nuclear Materials",
    issn = "0022-3115",
    publisher = "Elsevier",

    }

    Aho-Mantila, L, Bonnin, X, Coster, DP, Lowry, C, Wischmeier, M, Brezinsek, S, Federici, G, Team, ASDEXU & Contributors, JET-EFDA 2015, 'Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade', Journal of Nuclear Materials, vol. 463, pp. 546-550. https://doi.org/10.1016/j.jnucmat.2014.11.049

    Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade. / Aho-Mantila, L. (Corresponding Author); Bonnin, X.; Coster, D.P.; Lowry, C.; Wischmeier, M.; Brezinsek, S.; Federici, G.; Team, ASDEX Upgrade; Contributors, JET-EFDA.

    In: Journal of Nuclear Materials, Vol. 463, 2015, p. 546-550.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade

    AU - Aho-Mantila, L.

    AU - Bonnin, X.

    AU - Coster, D.P.

    AU - Lowry, C.

    AU - Wischmeier, M.

    AU - Brezinsek, S.

    AU - Federici, G.

    AU - Team, ASDEX Upgrade

    AU - Contributors, JET-EFDA

    PY - 2015

    Y1 - 2015

    N2 - Effects of N-seeding in L-mode experiments in ASDEX Upgrade and JET are analysed numerically with the SOLPS5.0 code package. The modelling yields 3 qualitatively different radiative regimes with increasing N concentration, when initially attached outer divertor conditions are studied. The radiation pattern is observed to evolve asymmetrically, with radiation increasing first in the inner divertor, then in the outer divertor, and finally on closed field lines above the X-point. The properties of these radiative regimes are observed to be sensitive to cross-field drifts and they differ between the two devices. The modelled scaling of the divertor radiated power with the divertor neutral pressure is similar to an experimental scaling law for H-mode radiation. The same parametric dependencies are not observed in simulations without drifts.

    AB - Effects of N-seeding in L-mode experiments in ASDEX Upgrade and JET are analysed numerically with the SOLPS5.0 code package. The modelling yields 3 qualitatively different radiative regimes with increasing N concentration, when initially attached outer divertor conditions are studied. The radiation pattern is observed to evolve asymmetrically, with radiation increasing first in the inner divertor, then in the outer divertor, and finally on closed field lines above the X-point. The properties of these radiative regimes are observed to be sensitive to cross-field drifts and they differ between the two devices. The modelled scaling of the divertor radiated power with the divertor neutral pressure is similar to an experimental scaling law for H-mode radiation. The same parametric dependencies are not observed in simulations without drifts.

    U2 - 10.1016/j.jnucmat.2014.11.049

    DO - 10.1016/j.jnucmat.2014.11.049

    M3 - Article

    VL - 463

    SP - 546

    EP - 550

    JO - Journal of Nuclear Materials

    JF - Journal of Nuclear Materials

    SN - 0022-3115

    ER -