Fast particle destabilization of toroidicity-induced Alfvén eigenmodes in the National Spherical Torus Experiment

N. N. Gorelenkov; C. Z. Cheng; G. Y. Fu; S. Kaye; R. White; M. V. Gorelenkova

doi:10.1063/1.873961

Fast particle destabilization of toroidicity-induced Alfvén eigenmodes in the National Spherical Torus Experiment

N. N. Gorelenkov, C. Z. Cheng, G. Y. Fu, S. Kaye, R. White, M. V. Gorelenkova

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Toroidicity-induced Alfvén eigenmode (TAE) stability in the National Spherical Torus Experiment (NSTX) [S. M. Kaye, M. Ono, Y.-K. M. Peng et al., Fusion Technol. 36, 16 (1999)] is analyzed using the improved NOVA-K code [N. N. Gorelenkov, C. Z. Cheng, and G. Y. Fu, Phys. Plasmas 6, 2802 (1999)], which includes finite orbit width and Larmor radius effects and is able to predict the saturation amplitude for the mode using the quasilinear theory. A broad spectrum of unstable global TAEs with different toroidal mode numbers is predicted. Due to the strong poloidal field and the presence of the magnetic well in NSTX, better particle confinement in the presence of TAEs in comparison with tokamaks is illustrated making use of the ORBIT code [R. B. White and M. S. Chance, Phys. Fluids 27, 2455 (1984)].

Original language	English (US)
Pages (from-to)	1433-1436
Number of pages	4
Journal	Physics of Plasmas
Volume	7
Issue number	5 I
DOIs	https://doi.org/10.1063/1.873961
State	Published - May 2000

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.873961

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@article{17e8eaef334441cda735468dc9f2ec05,

title = "Fast particle destabilization of toroidicity-induced Alfv{\'e}n eigenmodes in the National Spherical Torus Experiment",

abstract = "Toroidicity-induced Alfv{\'e}n eigenmode (TAE) stability in the National Spherical Torus Experiment (NSTX) [S. M. Kaye, M. Ono, Y.-K. M. Peng et al., Fusion Technol. 36, 16 (1999)] is analyzed using the improved NOVA-K code [N. N. Gorelenkov, C. Z. Cheng, and G. Y. Fu, Phys. Plasmas 6, 2802 (1999)], which includes finite orbit width and Larmor radius effects and is able to predict the saturation amplitude for the mode using the quasilinear theory. A broad spectrum of unstable global TAEs with different toroidal mode numbers is predicted. Due to the strong poloidal field and the presence of the magnetic well in NSTX, better particle confinement in the presence of TAEs in comparison with tokamaks is illustrated making use of the ORBIT code [R. B. White and M. S. Chance, Phys. Fluids 27, 2455 (1984)].",

author = "Gorelenkov, \{N. N.\} and Cheng, \{C. Z.\} and Fu, \{G. Y.\} and S. Kaye and R. White and Gorelenkova, \{M. V.\}",

year = "2000",

month = may,

doi = "10.1063/1.873961",

language = "English (US)",

volume = "7",

pages = "1433--1436",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "5 I",

}

TY - JOUR

T1 - Fast particle destabilization of toroidicity-induced Alfvén eigenmodes in the National Spherical Torus Experiment

AU - Gorelenkov, N. N.

AU - Cheng, C. Z.

AU - Fu, G. Y.

AU - Kaye, S.

AU - White, R.

AU - Gorelenkova, M. V.

PY - 2000/5

Y1 - 2000/5

N2 - Toroidicity-induced Alfvén eigenmode (TAE) stability in the National Spherical Torus Experiment (NSTX) [S. M. Kaye, M. Ono, Y.-K. M. Peng et al., Fusion Technol. 36, 16 (1999)] is analyzed using the improved NOVA-K code [N. N. Gorelenkov, C. Z. Cheng, and G. Y. Fu, Phys. Plasmas 6, 2802 (1999)], which includes finite orbit width and Larmor radius effects and is able to predict the saturation amplitude for the mode using the quasilinear theory. A broad spectrum of unstable global TAEs with different toroidal mode numbers is predicted. Due to the strong poloidal field and the presence of the magnetic well in NSTX, better particle confinement in the presence of TAEs in comparison with tokamaks is illustrated making use of the ORBIT code [R. B. White and M. S. Chance, Phys. Fluids 27, 2455 (1984)].

AB - Toroidicity-induced Alfvén eigenmode (TAE) stability in the National Spherical Torus Experiment (NSTX) [S. M. Kaye, M. Ono, Y.-K. M. Peng et al., Fusion Technol. 36, 16 (1999)] is analyzed using the improved NOVA-K code [N. N. Gorelenkov, C. Z. Cheng, and G. Y. Fu, Phys. Plasmas 6, 2802 (1999)], which includes finite orbit width and Larmor radius effects and is able to predict the saturation amplitude for the mode using the quasilinear theory. A broad spectrum of unstable global TAEs with different toroidal mode numbers is predicted. Due to the strong poloidal field and the presence of the magnetic well in NSTX, better particle confinement in the presence of TAEs in comparison with tokamaks is illustrated making use of the ORBIT code [R. B. White and M. S. Chance, Phys. Fluids 27, 2455 (1984)].

UR - https://www.scopus.com/pages/publications/0038124163

UR - https://www.scopus.com/inward/citedby.url?scp=0038124163&partnerID=8YFLogxK

U2 - 10.1063/1.873961

DO - 10.1063/1.873961

M3 - Article

AN - SCOPUS:0038124163

SN - 1070-664X

VL - 7

SP - 1433

EP - 1436

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5 I

ER -

Fast particle destabilization of toroidicity-induced Alfvén eigenmodes in the National Spherical Torus Experiment

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