Alfv{acute e}n{endash}wave particle interaction in finite-dimensional self-consistent field model

Journal Article · Mon Mar 01 04:00:00 EST 1999 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.873337· OSTI ID:321502

Padhye, N; Horton, W ^[1]

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1. Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (United States)

A low-dimensional Hamiltonian model is derived for the acceleration of ions in finite-amplitude Alfv{acute e}n waves in a finite-pressure plasma sheet. The reduced low-dimensional wave{endash}particle Hamiltonian is useful for describing the reaction of the accelerated ions on the wave amplitudes and phases through the self-consistent fields within the envelope approximation. As an example, we show that for a single Alfv{acute e}n wave in the central plasma sheet of the Earth{close_quote}s geotail, modeled by the linear pinch geometry called the Harris sheet, the time variation of the wave amplitude during the acceleration of fast protons. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 321502
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 6; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
ALFVEN WAVES
EARTH MAGNETOSPHERE
HAMILTONIANS
PLASMA WAVES
SELF-CONSISTENT FIELD