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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Drift Alfvén energetic particle stability with circulating particles

Yongfu Li, +3 more

- 02 Jun 2020 -

Physics of Plasmas

TL;DR: The drift Alfven energetic particle stability (DAEPS) code as mentioned in this paper was developed from scratch to investigate the physics of various stable and unstable modes observed in toroidal fusion plasmas, which has the advantage of accurate calculation of the mode characteristics near marginal stability.

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Journal ArticleDOI

Kinetic toroidal Alfvén eigenmodes in finite-β tokamak plasmas

Linjin Zheng, +1 more

- 07 Oct 1998 -

Physics of Plasmas

TL;DR: In this article, a new effect associated with finite parallel electric field effect due to ion magnetic drift (IMD) is discovered, which is of the same order as that due to the finite ion Larmor radii.

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Radiative Damping of Low Shear Toroidal Alfvén Eigenmodes

Robert Nyqvist, +2 more

TL;DR: In this paper, the authors developed a theory of LSTAEs by incorporating non-ideal effects associated with finite ion Larmor gyroradius into the MHD model.

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Journal ArticleDOI

Dynamic evolutions of multiple toroidal Alfvén eigenmodes with energetic particles

J. Zhu, +2 more

- 01 Dec 2013 -

Physics of Plasmas

TL;DR: In this article, a reduced model is used to study dynamic evolutions of multiple toroidicity-induced shear Alfven eigenmodes driven by energetic particles, and it is found that passing and trapped particles play quite different roles on the mode evolution.

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Journal ArticleDOI

Parametric study of linear stability of toroidal Alfvén eigenmode in JET and KSTAR

Jaemin Seo, +12 more

- 28 Apr 2020 -

Nuclear Fusion

TL;DR: In this article, the linear stability of toroidal Alfvén eigenmode (TAE) in the presence of neutral beam injection (NBI) is investigated to understand the beam drive and damping effect of TAEs in JET and KSTAR.

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References

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Harold P. Furth, +2 more

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Physics of Fluids

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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.

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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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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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