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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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.",
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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

TY - JOUR

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 - fusion energy

KW - fusion reactors

KW - tokamak

KW - ITER

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DO - 10.1088/0741-3335/47/3/003

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