High- n ideal and resistive shear Alfvén waves in tokamaks

doi:10.1016/0003-4916(85)90335-5

Open AccessJournal ArticleDOI

High- n ideal and resistive shear Alfvén waves in tokamaks

Chio-Zong Cheng, +2 more

- 15 Apr 1985 -

Annals of Physics

- Vol. 161, Iss: 1, pp 21-47

TLDR

In this paper, the ideal and resistive MHD equations for the shear Alfven waves are studied in a low-β toroidal model by employing the high-n ballooning formalism.

About:

This article is published in Annals of Physics.The article was published on 1985-04-15 and is currently open access. It has received 450 citations till now. The article focuses on the topics: Resistive touchscreen.

Figures

Fig. 11 "Hie e i^enfunct ion of the r e s i s t i v e p e r i o d i c shear Alfven mode versus 6 for the parameters s = 0 . 2 , v = 1 0 ~ 5 , ou = 0, s = 1, •• id j2 = ( 0 . 4 4 , - 0 , 0 1 4 5 ) .

Fig. 1 The Stokes1 diagram of the potential function Q(6) in the complex 6 plane for s = 1.

Citations

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Fast particle destabilization of toroidal Alfven eigenmodes

C.Z. Cheng, +2 more

- 01 Dec 1995 -

Nuclear Fusion

TL;DR: In this article, high-n, toroidal Alfven eigenmodes (TAEs) are studied on the basis of a kinetic model that includes full thermal ion finite Larmor radius effects, trapped electron collisions and fast particle instability drive.

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Journal ArticleDOI

Transition from weak to strong energetic ion transport in burning plasmas

Fulvio Zonca, +4 more

- 24 May 2005 -

Nuclear Fusion

TL;DR: The change in nonlinear energetic particle mode dynamics that accompanies the transition from weak to strong ion transport is discussed in this paper, where it is demonstrated that the nonlinear threshold in fast ion energy density for the onset of strong convective transport occurring in avalanches is close to the linear EPM excitation threshold.

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Journal ArticleDOI

Characteristics of Alfvén eigenmodes, burst modes and chirping modes in the Alfvén frequency range driven by negative ion based neutral beam injection in JT-60U

Y. Kusama, +21 more

- 01 Nov 1999 -

Nuclear Fusion

TL;DR: In this paper, the excitation and stabilization of Alfv?n eigenmodes and their impact on energetic ion confinement were investigated with negative ion based neutral beam injection at 330-360?keV into weak or reversed magnetic shear plasmas on JT-60U.

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Journal ArticleDOI

Spectroscopic determination of the internal amplitude of frequency sweeping TAE

S. D. Pinches, +4 more

- 01 Jul 2004 -

Plasma Physics and Controlled Fusion

TL;DR: Pinches et al. as mentioned in this paper used the MISHKA code to determine the global mode structure of toroidal Alfven eigenmodes (TAEs) from spectroscopic measurements of the frequency sweeping rate, e.g. with Mirnov coils outside the plasma.

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Journal ArticleDOI

Super-thermal particles in hot plasmas—Kinetic models, numerical solution strategies, and comparison to tokamak experiments

Philipp Lauber

- 10 Dec 2013 -

Physics Reports

TL;DR: In this article, a more detailed and quantitative understanding of fast-particle-driven instabilities in hot plasmas has been presented, which can be used to diagnose various kinetic features of the plasma modes that are responsible for the transport of energetic particles.

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References

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Journal ArticleDOI

Finite‐Resistivity Instabilities of a Sheet Pinch

Harold P. Furth, +2 more

- 01 Apr 1963 -

Physics of Fluids

TL;DR: In this paper, the stability of a plane current layer is analyzed in the hydromagnetic approximation, allowing for finite isotropic resistivity, and the effect of a small layer curvature is simulated by a gravitational field.

...read moreread less

Journal ArticleDOI

Resistive instabilities in general toroidal plasma configurations

A. H. Glasser, +2 more

- 01 Jul 1975 -

Physics of Fluids

TL;DR: In this article, the Mercier criterion for the stability of the ideal magnetohydrodynamic interchange mode is derived, the generalization of the earlier stability criterion for resistive interchange mode was obtained, and a relation between the two was noted.

...read moreread less

Journal ArticleDOI

A theory of long‐period magnetic pulsations: 2. Impulse excitation of surface eigenmode

Liu Chen, +1 more

- 01 Mar 1974 -

Journal of Geophysical Research

TL;DR: In this paper, a wave equation that shows a coupling between a surface wave and a shear Alfven wave is derived, and a theory of long-period magnetic pulsations (Pc 3 to Pc 5) is presented as an initial value problem to explain impulse-excited pulsations.

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Journal ArticleDOI

Decay of MHD waves by phase mixing

J. Tataronis, +1 more

- 01 Jan 1973 -

European Physical Journal A

TL;DR: In this article, the authors examined the dispersion relation for plasmas with non-uniform profiles and compared the results with those of a sharp boundary model, showing that the frequency of the waves is a complex quantity having a real and imaginary part.

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Journal ArticleDOI

Kinetic-ballooning-mode theory in general geometry

William Tang, +2 more

- 01 Nov 1980 -

Nuclear Fusion

TL;DR: In this article, a systematic procedure for studying the influence of kinetic effects on the stability of MHD ballooning modes is presented, which includes effects due to finite gyroradius, trapped particles, and wave-particle resonances.

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