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	Short wavelength ion temperature gradient instability in toroidal plasmas
	Gao, Z ; Sanuki, H ; Itoh, K ; Dong, JQ
	2010-05-10 ; 2010-05-10
关键词	ETA-I-MODE MAGNETIC CONFINEMENT TOKAMAK PLASMAS DRIVEN TURBULENCE SHEAR TRANSPORT PARTICLE DRIFT Physics, Fluids & Plasmas
中文摘要	Series of ion temperature gradient (ITG or eta(i)) driven modes in the short wavelength region, parallel tok(perpendicular to)rho(i)parallel to>1, are investigated with a gyrokinetic integral equation code in toroidal plasmas. These instabilities exist even if electrons are assumed adiabatic. However, nonadiabatic electron response can influence these short wavelength ITG (SWITG) modes, especially the fundamental l=0 mode. At typical parameters, excitation of the l=0 mode requires that both eta(i) and eta(e) exceed thresholds, while the l=1 and l=2 modes with higher harmonic eigenfunctions persist unstable even at eta(e)=0. Dependence of the SWITG modes on other parameters is also investigated. The l=1 mode with an odd potential eigenfunction grows faster than the l=0 mode and may be dominant in low eta(e), high beta, weak positive magnetic shear, and/or weak toroidicity regions. (C) 2005 American Institute of Physics.
语种	英语 ; 英语
出版者	AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22435]
专题	清华大学
推荐引用方式 GB/T 7714	Gao, Z,Sanuki, H,Itoh, K,et al. Short wavelength ion temperature gradient instability in toroidal plasmas[J],2010, 2010.
APA	Gao, Z,Sanuki, H,Itoh, K,&Dong, JQ.(2010).Short wavelength ion temperature gradient instability in toroidal plasmas..
MLA	Gao, Z,et al."Short wavelength ion temperature gradient instability in toroidal plasmas".(2010).

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