Effects of temperature ratio on JET transport in hot ion and hot electron regimes

J. Weiland, E. Asp, X. Garbet, P. Mantica, V. Parail, P. Thomas, W. Suttrop, Tuomas Tala, JET-EFDA Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    17 Citations (Scopus)

    Abstract

    Two series of JET shots, one on hot ion shots and one on hot electron shots, have been analysed in order to improve the understanding of how the temperature ratio Te/Ti influences the performance. Comparisons are also made with ITER simulations which are in the hot electron regime. The temperature ratio has been varied between different shots, in partly interpretative simulations of one shot and locally. The effect of the variation of the temperature ratio depends strongly on how it is done but can also be different in different types of shots. In general, however, an increased electron heating deteriorates confinement rather strongly. This is the situation for increasing the alpha power in ITER. ITER simulations show, however, that the effect is not dramatic.
    Original languageEnglish
    Pages (from-to)441 - 449
    Number of pages9
    JournalPlasma Physics and Controlled Fusion
    Volume47
    Issue number3
    DOIs
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    temperature ratio
    Hot electrons
    hot electrons
    shot
    Ions
    ions
    electrons
    Temperature
    Heating
    Electrons
    simulation
    heating

    Keywords

    • JET
    • plasma
    • fusion energy
    • fusion reactors
    • tokamak
    • ITER

    Cite this

    Weiland, J., Asp, E., Garbet, X., Mantica, P., Parail, V., Thomas, P., ... JET-EFDA Contributors (2005). Effects of temperature ratio on JET transport in hot ion and hot electron regimes. Plasma Physics and Controlled Fusion, 47(3), 441 - 449. https://doi.org/10.1088/0741-3335/47/3/003
    Weiland, J. ; Asp, E. ; Garbet, X. ; Mantica, P. ; Parail, V. ; Thomas, P. ; Suttrop, W. ; Tala, Tuomas ; JET-EFDA Contributors. / Effects of temperature ratio on JET transport in hot ion and hot electron regimes. In: Plasma Physics and Controlled Fusion. 2005 ; Vol. 47, No. 3. pp. 441 - 449.
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    title = "Effects of temperature ratio on JET transport in hot ion and hot electron regimes",
    abstract = "Two series of JET shots, one on hot ion shots and one on hot electron shots, have been analysed in order to improve the understanding of how the temperature ratio Te/Ti influences the performance. Comparisons are also made with ITER simulations which are in the hot electron regime. The temperature ratio has been varied between different shots, in partly interpretative simulations of one shot and locally. The effect of the variation of the temperature ratio depends strongly on how it is done but can also be different in different types of shots. In general, however, an increased electron heating deteriorates confinement rather strongly. This is the situation for increasing the alpha power in ITER. ITER simulations show, however, that the effect is not dramatic.",
    keywords = "JET, plasma, fusion energy, fusion reactors, tokamak, ITER",
    author = "J. Weiland and E. Asp and X. Garbet and P. Mantica and V. Parail and P. Thomas and W. Suttrop and Tuomas Tala and {JET-EFDA Contributors}",
    year = "2005",
    doi = "10.1088/0741-3335/47/3/003",
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    Weiland, J, Asp, E, Garbet, X, Mantica, P, Parail, V, Thomas, P, Suttrop, W, Tala, T & JET-EFDA Contributors 2005, 'Effects of temperature ratio on JET transport in hot ion and hot electron regimes', Plasma Physics and Controlled Fusion, vol. 47, no. 3, pp. 441 - 449. https://doi.org/10.1088/0741-3335/47/3/003

    Effects of temperature ratio on JET transport in hot ion and hot electron regimes. / Weiland, J.; Asp, E.; Garbet, X.; Mantica, P.; Parail, V.; Thomas, P.; Suttrop, W.; Tala, Tuomas; JET-EFDA Contributors.

    In: Plasma Physics and Controlled Fusion, Vol. 47, No. 3, 2005, p. 441 - 449.

    Research output: Contribution to journalArticleScientificpeer-review

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    T1 - Effects of temperature ratio on JET transport in hot ion and hot electron regimes

    AU - Weiland, J.

    AU - Asp, E.

    AU - Garbet, X.

    AU - Mantica, P.

    AU - Parail, V.

    AU - Thomas, P.

    AU - Suttrop, W.

    AU - Tala, Tuomas

    AU - JET-EFDA Contributors, null

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    AB - Two series of JET shots, one on hot ion shots and one on hot electron shots, have been analysed in order to improve the understanding of how the temperature ratio Te/Ti influences the performance. Comparisons are also made with ITER simulations which are in the hot electron regime. The temperature ratio has been varied between different shots, in partly interpretative simulations of one shot and locally. The effect of the variation of the temperature ratio depends strongly on how it is done but can also be different in different types of shots. In general, however, an increased electron heating deteriorates confinement rather strongly. This is the situation for increasing the alpha power in ITER. ITER simulations show, however, that the effect is not dramatic.

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    KW - tokamak

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