NDLI: Excitation of contained interacting modes by fusion products

Content Provider	IEEE Xplore Digital Library
Author	Riconda, C. Penn, G. Coppi, B.
Copyright Year	1996
Description	Author affiliation: MIT, Cambridge, MA, USA (Riconda, C.)
Abstract	Summary form only given. We investigate modes that can interact with high energy reaction products in fusion burning plasmas giving rise to instability for frequencies that correspond to harmonics of the energetic particles' cyclotron frequency. The corresponding modes in a homogeneous plasma would be classified as magnetosonic-whistler modes. It is known that in a configuration with inhomogeneous magnetic field, density, and temperature, it is possible to find radially localized solutions, that we call "contained modes," for the perturbed field. We study new localized solutions for the perturbed fields by solving the equations obtained by linearizing the extended MHD equations, including the Hall term. The main effects associated with this term are to break the symmetry in /spl plusmn/k/sub /spl perp// and to include a (Whistler type) term in the dispersion equation related to propagation in the direction of the equilibrium magnetic field. We point out how the existence of this solution is essential to make it possible that the resonant interaction of the considered modes with relatively few fusion products will yield a positive growth rate.
File Size	122891
File Format	PDF
ISBN	0780333225
ISSN	07309244
DOI	10.1109/PLASMA.1996.551477
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Toroidal magnetic fields Frequency Physics Plasma temperature Plasma density Magnetic anisotropy Perpendicular magnetic anisotropy Equations Magnetic resonance Cyclotrons
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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