Micro-stability and transport modelling of internal transport barriers on JET

X. Garbet (Corresponding Author), Yuri Baranov, G. Bateman, S. Benkadda, P. Beyer, Tuomas Tala, JET-EFDA collaborators

    Research output: Contribution to journalArticleScientificpeer-review

    28 Citations (Scopus)

    Abstract

    The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.
    Original languageEnglish
    Pages (from-to)974-981
    JournalNuclear Fusion
    Volume43
    Issue number9
    DOIs
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    turbulence
    physics
    simulation
    profiles
    electron energy
    electrostatics
    shear
    impurities
    fluids
    shift
    ions

    Keywords

    • JET
    • plasma
    • Tokamak
    • fusion energy
    • fusion reactors
    • internal transport barriers

    Cite this

    Garbet, X., Baranov, Y., Bateman, G., Benkadda, S., Beyer, P., Tala, T., & JET-EFDA collaborators (2003). Micro-stability and transport modelling of internal transport barriers on JET. Nuclear Fusion, 43(9), 974-981. https://doi.org/10.1088/0029-5515/43/9/323
    Garbet, X. ; Baranov, Yuri ; Bateman, G. ; Benkadda, S. ; Beyer, P. ; Tala, Tuomas ; JET-EFDA collaborators. / Micro-stability and transport modelling of internal transport barriers on JET. In: Nuclear Fusion. 2003 ; Vol. 43, No. 9. pp. 974-981.
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    abstract = "The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.",
    keywords = "JET, plasma, Tokamak, fusion energy, fusion reactors, internal transport barriers",
    author = "X. Garbet and Yuri Baranov and G. Bateman and S. Benkadda and P. Beyer and Tuomas Tala and {JET-EFDA collaborators}",
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    Garbet, X, Baranov, Y, Bateman, G, Benkadda, S, Beyer, P, Tala, T & JET-EFDA collaborators 2003, 'Micro-stability and transport modelling of internal transport barriers on JET', Nuclear Fusion, vol. 43, no. 9, pp. 974-981. https://doi.org/10.1088/0029-5515/43/9/323

    Micro-stability and transport modelling of internal transport barriers on JET. / Garbet, X. (Corresponding Author); Baranov, Yuri; Bateman, G.; Benkadda, S. ; Beyer, P. ; Tala, Tuomas; JET-EFDA collaborators.

    In: Nuclear Fusion, Vol. 43, No. 9, 2003, p. 974-981.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Micro-stability and transport modelling of internal transport barriers on JET

    AU - Garbet, X.

    AU - Baranov, Yuri

    AU - Bateman, G.

    AU - Benkadda, S.

    AU - Beyer, P.

    AU - Tala, Tuomas

    AU - JET-EFDA collaborators

    PY - 2003

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    AB - The physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.

    KW - JET

    KW - plasma

    KW - Tokamak

    KW - fusion energy

    KW - fusion reactors

    KW - internal transport barriers

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    DO - 10.1088/0029-5515/43/9/323

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    JO - Nuclear Fusion

    JF - Nuclear Fusion

    SN - 0029-5515

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