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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Existence of core localized toroidicity‐induced Alfvén eigenmode
TL;DR: In this article, the core-localized toroidicity-induced Alfven eigenmode (TAE) was shown to exist at finite plasma pressure due to finite aspect ratio effects in tokamak plasma.
Journal ArticleDOI
Physics of burning plasmas in toroidal magnetic confinement devices
TL;DR: In this article, the crucial physics aspects of burning plasmas magnetically confined in toroidal systems are presented from the viewpoint of nonlinear dynamics, with particular emphasis devoted to fluctuation induced transport processes of mega electron volts energetic ions and charged fusion products as well as to energy and particle transports of the thermal plasma.
Journal ArticleDOI
Active and fast particle driven Alfven eigenmodes in Alcator C-Mod
J. A. Snipes,Nils T. Basse,C. Boswell,E.M. Edlund,Ambrogio Fasoli,Nikolai Gorelenkov,Robert Granetz,L. Lin,Yuxuan Lin,R.R. Parker,Miklos Porkolab,Jason Sears,S. E. Sharapov,Vincent Tang,S. J. Wukitch +14 more
TL;DR: Alfven eigenmodes sAEsd are studied to assess their stability in high density reactor relevant regimes where Ti < Te and as a diagnostic tool in this paper, where stable AEs are excited with active magnetohydrodynamics antennas in the range of the expected AE frequency.
Journal ArticleDOI
Energetic particle mode stability in tokamaks with hollow q-profiles
TL;DR: In this article, a thorough analysis of EPM stability and mode structures for tokamaks with hollow q profiles is presented, focusing on the region near the minimum-q surface, EPM gap modes and resonant EPMs are shown to exist as solutions of the same dispersion relation.
Journal ArticleDOI
The role of energetic particles in fusion plasmas
S. D. Pinches,Herbert L Berk,D. N. Borba,Boris Breizman,Sergio Briguglio,Ambrogio Fasoli,G. Fogaccia,M. P. Gryaznevich,Vasily Kiptily,M. J. Mantsinen,S. E. Sharapov,D. Testa,Roddy G. L. Vann,Gregorio Vlad,Fulvio Zonca,Jet Efda contributors +15 more
TL;DR: In the burning fusion plasmas of next step devices such as ITER, the majority of the heating of the fusing fuel will come from the plasma self-heating by fusion born α-particles as discussed by the authors.
References
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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.
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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.
Journal ArticleDOI
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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