The dependence of ion heat transport on the ion to electron temperature ratio in JET non-rotating plasmas

P. Migliano, P. Mantica, B. Baiocchi, A. Casati, J. Citrin, C. Giroud, N. Hawkes, E. Lerche, M. Tsalas, D. Eester, van

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Abstract

Detailed experimental studies of ion heat transport are carried out in JET to explore the Te/Ti dependence of ion heat transport in ITER relevant range of parameters (Te/Ti = 1) using low rotation plasmas with dominant ion cyclotron resonance heating to avoid the coupling of the effects of Te/Ti and rotation which affected previous experiments. This experimental setup has led to an accurate determination of the ion temperature gradient (ITG) threshold at varying Te/Ti, offering unique opportunities for validation of the well-established theory of ITG driven modes. A rather mild decrease in threshold with increasing Te/Ti in the interval of ITER interest was found. The new experimental result has found good agreement with theoretical predictions based on quasi-linear fluid and linear gyrokinetic models.
Original languageEnglish
Article number055003
Pages (from-to)055003-1/8
Number of pages8
JournalPlasma Physics and Controlled Fusion
Volume55
Issue number5
DOIs
Publication statusPublished - 2013

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temperature ratio
Electron temperature
electron energy
ion temperature
Plasmas
heat
temperature gradients
Ions
ions
thresholds
Thermal gradients
cyclotron resonance
Cyclotron resonance
intervals
heating
fluids
predictions
Hot Temperature
Heating
Fluids

Cite this

Migliano, P. ; Mantica, P. ; Baiocchi, B. ; Casati, A. ; Citrin, J. ; Giroud, C. ; Hawkes, N. ; Lerche, E. ; Tsalas, M. ; Eester, van, D. / The dependence of ion heat transport on the ion to electron temperature ratio in JET non-rotating plasmas. In: Plasma Physics and Controlled Fusion. 2013 ; Vol. 55, No. 5. pp. 055003-1/8.
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title = "The dependence of ion heat transport on the ion to electron temperature ratio in JET non-rotating plasmas",
abstract = "Detailed experimental studies of ion heat transport are carried out in JET to explore the Te/Ti dependence of ion heat transport in ITER relevant range of parameters (Te/Ti = 1) using low rotation plasmas with dominant ion cyclotron resonance heating to avoid the coupling of the effects of Te/Ti and rotation which affected previous experiments. This experimental setup has led to an accurate determination of the ion temperature gradient (ITG) threshold at varying Te/Ti, offering unique opportunities for validation of the well-established theory of ITG driven modes. A rather mild decrease in threshold with increasing Te/Ti in the interval of ITER interest was found. The new experimental result has found good agreement with theoretical predictions based on quasi-linear fluid and linear gyrokinetic models.",
author = "P. Migliano and P. Mantica and B. Baiocchi and A. Casati and J. Citrin and C. Giroud and N. Hawkes and E. Lerche and M. Tsalas and {Eester, van}, D.",
year = "2013",
doi = "10.1088/0741-3335/55/5/055003",
language = "English",
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Migliano, P, Mantica, P, Baiocchi, B, Casati, A, Citrin, J, Giroud, C, Hawkes, N, Lerche, E, Tsalas, M & Eester, van, D 2013, 'The dependence of ion heat transport on the ion to electron temperature ratio in JET non-rotating plasmas', Plasma Physics and Controlled Fusion, vol. 55, no. 5, 055003, pp. 055003-1/8. https://doi.org/10.1088/0741-3335/55/5/055003

The dependence of ion heat transport on the ion to electron temperature ratio in JET non-rotating plasmas. / Migliano, P.; Mantica, P.; Baiocchi, B.; Casati, A.; Citrin, J.; Giroud, C.; Hawkes, N.; Lerche, E.; Tsalas, M.; Eester, van, D.

In: Plasma Physics and Controlled Fusion, Vol. 55, No. 5, 055003, 2013, p. 055003-1/8.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - The dependence of ion heat transport on the ion to electron temperature ratio in JET non-rotating plasmas

AU - Migliano, P.

AU - Mantica, P.

AU - Baiocchi, B.

AU - Casati, A.

AU - Citrin, J.

AU - Giroud, C.

AU - Hawkes, N.

AU - Lerche, E.

AU - Tsalas, M.

AU - Eester, van, D.

PY - 2013

Y1 - 2013

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AB - Detailed experimental studies of ion heat transport are carried out in JET to explore the Te/Ti dependence of ion heat transport in ITER relevant range of parameters (Te/Ti = 1) using low rotation plasmas with dominant ion cyclotron resonance heating to avoid the coupling of the effects of Te/Ti and rotation which affected previous experiments. This experimental setup has led to an accurate determination of the ion temperature gradient (ITG) threshold at varying Te/Ti, offering unique opportunities for validation of the well-established theory of ITG driven modes. A rather mild decrease in threshold with increasing Te/Ti in the interval of ITER interest was found. The new experimental result has found good agreement with theoretical predictions based on quasi-linear fluid and linear gyrokinetic models.

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DO - 10.1088/0741-3335/55/5/055003

M3 - Article

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