High- n ideal and resistive shear Alfvén waves in tokamaks
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.read more
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Heuristic closures for numerical simulations of neoclassical tearing modes
TL;DR: In this paper, heuristic closures are presented for use in simulations of neoclassical modifications to magnetohydrodynamic phenomenon in tokamaks, which capture the dominant physics expected from linear and quasilinear instability theory.
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Kinetic theory of geodesic acoustic modes in toroidal plasmas: a brief review
TL;DR: In this paper, a unified theoretical framework of geodesic acoustic modes (GAM) and EPs (EGAM) is presented, with emphasis on kinetic treatment, system non-uniformity and realistic magnetic geometry.
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Gyrokinetic δf particle simulations of toroidicity-induced Alfvén eigenmode
TL;DR: In this article, gyrokinetic simulations demonstrate the kinetic damping effect of thermal ions, where the finite radial structure of kinetic Alfven waves is well resolved and the damping rate is compared to and found to agree well with analytical theory.
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Convective beam ion losses due to Alfvén eigenmodes in DIII-D reversed-shear plasmas
TL;DR: In this paper, convective beam ion losses are observed at frequencies corresponding to toroidal and reversed-shear Alfven eigenmodes (RSAEs) in DIII-D.
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Excitation of low-n TAE instabilities by energetic particles in global gyrokinetic tokamak plasmas
TL;DR: In this paper, the first linear global electromagnetic gyrokinetic particle simulation on the excitation of toroidicity induced Alfven eigenmode (TAE) by energetic particles is reported.
References
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Journal ArticleDOI
Finite‐Resistivity Instabilities of a Sheet Pinch
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.
Journal ArticleDOI
Resistive instabilities in general toroidal plasma configurations
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,Akira Hasegawa +1 more
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,W. Grossmann +1 more
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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Kinetic-ballooning-mode theory in general geometry
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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