Fast wave current drive in JET ITB-plasma

T. Hellsten; M. Laxåback; T. Bergkvist; T. Johnson; M. Mantsinen; G. Matthews; F. Meo; F. Nguyen; J.-M. Noterdaeme; C.C. Petty; Tuomas Tala; D. van Eester; P. Andrew; P. Beaumont; V. Bobkov; M. Brix; J. Brzozowski; L.G. Eriksson; C. Giroud; E. Joffrin; V. Kiptily; J. Mailloux; M.-L. Mayoral; I. Monakhov; R. Sartori; A. Staebler; E. Rachlew; E. Tennfors; A. Tuccillo; A. Walden; K. D. Zastrow

doi:10.1063/1.2098240

Fast wave current drive in JET ITB-plasma

T. Hellsten, M. Laxåback, T. Bergkvist, T. Johnson, M. Mantsinen, G. Matthews, F. Meo, F. Nguyen, J.-M. Noterdaeme, C.C. Petty, Tuomas Tala, D. van Eester, P. Andrew, P. Beaumont, V. Bobkov, M. Brix, J. Brzozowski, L.G. Eriksson, C. Giroud, E. JoffrinV. Kiptily, J. Mailloux, M.-L. Mayoral, I. Monakhov, R. Sartori, A. Staebler, E. Rachlew, E. Tennfors, A. Tuccillo, A. Walden, K. D. Zastrow

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

Fast wave current drive has been performed in JET plasmas with internal transport barriers, ITBs, and strongly reversed magnetic shear. Although the current drive efficiency of the power absorbed on the electrons is fairly high, only small effects are seen in the central current density. The main reasons are the parasitic absorption of RF power, the strongly inductive nature of the plasma and the interplay between the fast wave driven current and bootstrap current. The direct electron heating in the FWCD experiments is found to be strongly degraded compared to that with the dipole phasing.

Original language	English
Title of host publication	Radio Frequency Power in Plasmas
Subtitle of host publication	16th Topical Conference on Radio Frequency Power in Plasmas
Publisher	American Institute of Physics (AIP)
Pages	273-278
ISBN (Electronic)	978-0-7354-0276-8
ISBN (Print)	0-7354-0276-0
DOIs	https://doi.org/10.1063/1.2098240
Publication status	Published - 26 Sept 2005
MoE publication type	A4 Article in a conference publication
Event	16th Topical Conference on Radio Frequency Power in Plasmas - Park City, United States Duration: 11 Apr 2005 → 13 Apr 2005

Publication series

Series	AIP Conference Proceedings
Number	787
ISSN	0094-243X

Conference

Conference	16th Topical Conference on Radio Frequency Power in Plasmas
Country/Territory	United States
City	Park City
Period	11/04/05 → 13/04/05

Keywords

Fast Wave Current Drive
ICRH
ITB

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/1.2098240

Cite this

Hellsten, T., Laxåback, M., Bergkvist, T., Johnson, T., Mantsinen, M., Matthews, G., Meo, F., Nguyen, F., Noterdaeme, J.-M., Petty, C. C., Tala, T., van Eester, D., Andrew, P., Beaumont, P., Bobkov, V., Brix, M., Brzozowski, J., Eriksson, L. G., Giroud, C., ... Zastrow, K. D. (2005). Fast wave current drive in JET ITB-plasma. In Radio Frequency Power in Plasmas: 16th Topical Conference on Radio Frequency Power in Plasmas (pp. 273-278). American Institute of Physics (AIP). https://doi.org/10.1063/1.2098240

@inproceedings{d9ca3a5d2bf04e0f9a461881f18a8d9a,

title = "Fast wave current drive in JET ITB-plasma",

abstract = "Fast wave current drive has been performed in JET plasmas with internal transport barriers, ITBs, and strongly reversed magnetic shear. Although the current drive efficiency of the power absorbed on the electrons is fairly high, only small effects are seen in the central current density. The main reasons are the parasitic absorption of RF power, the strongly inductive nature of the plasma and the interplay between the fast wave driven current and bootstrap current. The direct electron heating in the FWCD experiments is found to be strongly degraded compared to that with the dipole phasing.",

keywords = "Fast Wave Current Drive, ICRH, ITB",

author = "T. Hellsten and M. Lax{\aa}back and T. Bergkvist and T. Johnson and M. Mantsinen and G. Matthews and F. Meo and F. Nguyen and J.-M. Noterdaeme and C.C. Petty and Tuomas Tala and {van Eester}, D. and P. Andrew and P. Beaumont and V. Bobkov and M. Brix and J. Brzozowski and L.G. Eriksson and C. Giroud and E. Joffrin and V. Kiptily and J. Mailloux and M.-L. Mayoral and I. Monakhov and R. Sartori and A. Staebler and E. Rachlew and E. Tennfors and A. Tuccillo and A. Walden and Zastrow, {K. D.}",

year = "2005",

month = sep,

day = "26",

doi = "10.1063/1.2098240",

language = "English",

isbn = "0-7354-0276-0",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics (AIP)",

number = "787",

pages = "273--278",

booktitle = "Radio Frequency Power in Plasmas",

address = "United States",

note = "16th Topical Conference on Radio Frequency Power in Plasmas ; Conference date: 11-04-2005 Through 13-04-2005",

}

Hellsten, T, Laxåback, M, Bergkvist, T, Johnson, T, Mantsinen, M, Matthews, G, Meo, F, Nguyen, F, Noterdaeme, J-M, Petty, CC, Tala, T, van Eester, D, Andrew, P, Beaumont, P, Bobkov, V, Brix, M, Brzozowski, J, Eriksson, LG, Giroud, C, Joffrin, E, Kiptily, V, Mailloux, J, Mayoral, M-L, Monakhov, I, Sartori, R, Staebler, A, Rachlew, E, Tennfors, E, Tuccillo, A, Walden, A & Zastrow, KD 2005, Fast wave current drive in JET ITB-plasma. in Radio Frequency Power in Plasmas: 16th Topical Conference on Radio Frequency Power in Plasmas. American Institute of Physics (AIP), AIP Conference Proceedings, no. 787, pp. 273-278, 16th Topical Conference on Radio Frequency Power in Plasmas, Park City, Utah, United States, 11/04/05. https://doi.org/10.1063/1.2098240

Fast wave current drive in JET ITB-plasma. / Hellsten, T.; Laxåback, M.; Bergkvist, T. et al.
Radio Frequency Power in Plasmas: 16th Topical Conference on Radio Frequency Power in Plasmas. American Institute of Physics (AIP), 2005. p. 273-278 (AIP Conference Proceedings; No. 787).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Fast wave current drive in JET ITB-plasma

AU - Hellsten, T.

AU - Laxåback, M.

AU - Bergkvist, T.

AU - Johnson, T.

AU - Mantsinen, M.

AU - Matthews, G.

AU - Meo, F.

AU - Nguyen, F.

AU - Noterdaeme, J.-M.

AU - Petty, C.C.

AU - Tala, Tuomas

AU - van Eester, D.

AU - Andrew, P.

AU - Beaumont, P.

AU - Bobkov, V.

AU - Brix, M.

AU - Brzozowski, J.

AU - Eriksson, L.G.

AU - Giroud, C.

AU - Joffrin, E.

AU - Kiptily, V.

AU - Mailloux, J.

AU - Mayoral, M.-L.

AU - Monakhov, I.

AU - Sartori, R.

AU - Staebler, A.

AU - Rachlew, E.

AU - Tennfors, E.

AU - Tuccillo, A.

AU - Walden, A.

AU - Zastrow, K. D.

PY - 2005/9/26

Y1 - 2005/9/26

N2 - Fast wave current drive has been performed in JET plasmas with internal transport barriers, ITBs, and strongly reversed magnetic shear. Although the current drive efficiency of the power absorbed on the electrons is fairly high, only small effects are seen in the central current density. The main reasons are the parasitic absorption of RF power, the strongly inductive nature of the plasma and the interplay between the fast wave driven current and bootstrap current. The direct electron heating in the FWCD experiments is found to be strongly degraded compared to that with the dipole phasing.

AB - Fast wave current drive has been performed in JET plasmas with internal transport barriers, ITBs, and strongly reversed magnetic shear. Although the current drive efficiency of the power absorbed on the electrons is fairly high, only small effects are seen in the central current density. The main reasons are the parasitic absorption of RF power, the strongly inductive nature of the plasma and the interplay between the fast wave driven current and bootstrap current. The direct electron heating in the FWCD experiments is found to be strongly degraded compared to that with the dipole phasing.

KW - Fast Wave Current Drive

KW - ICRH

KW - ITB

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U2 - 10.1063/1.2098240

DO - 10.1063/1.2098240

M3 - Conference article in proceedings

AN - SCOPUS:33749669219

SN - 0-7354-0276-0

T3 - AIP Conference Proceedings

SP - 273

EP - 278

BT - Radio Frequency Power in Plasmas

PB - American Institute of Physics (AIP)

T2 - 16th Topical Conference on Radio Frequency Power in Plasmas

Y2 - 11 April 2005 through 13 April 2005

ER -

Fast wave current drive in JET ITB-plasma

Abstract

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Conference

Keywords

UN SDGs

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