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

被引：8
|
作者：
Gorelenkov, NN
Cheng, CZ
Fu, GY
Kaye, S
White, R
Gorelenkova, MV
机构：
[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
[2] TRINITI, Troitsk 142092, Moscow Region, Russia
来源：
PHYSICS OF PLASMAS | 2000年 / 7卷 / 05期
关键词：
D O I：
10.1063/1.873961
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Toroidicity-induced Alfven eigenmode (TAE) stability in the National Spherical Torus Experiment (NSTX) [S. M. Kaye, M. Ono, Y.-K. M. Peng , 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)]. (C) 2000 American Institute of Physics. [S1070-664X(00)00705-9].
引用
收藏
页码：1433 / 1436
页数：4
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