Plasma pressure effect on the multiple low-shear toroidal Alfven eigenmodes

Journal Article · Wed Apr 15 00:00:00 EDT 2009 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3111030· OSTI ID:21277051

Marchenko, V S ^[1]

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1. Institute for Nuclear Research, Prospect Nauky 47, Kyiv 03680 (Ukraine)

It is shown that there is a critical thermal pressure gradient at which the polarizations of the multiple low-shear toroidal Alfven eigenmodes (TAEs) are reversed. Below the critical value, the TAE spectrum consists of two bands of the even (odd) modes located in the upper (lower) part of the toroidal Alfven gap, which is consistent with the zero-pressure limit [J. Candy, B. N. Breizman, J. W. Van Dam, and T. Ozeki, Phys. Lett. A 215, 299 (1996)]. Above the critical pressure, the odd (even) TAEs appear in the upper (lower) part of the gap.

• OSTI ID: 21277051
• Journal Information: Physics of Plasmas, Vol. 16, Issue 4; Other Information: DOI: 10.1063/1.3111030; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
CRITICAL PRESSURE
EIGENFUNCTIONS
EIGENVALUES
PLASMA
PLASMA PRESSURE
POLARIZATION
PRESSURE GRADIENTS