Adiabatic description of capture into resonance and surfatron acceleration of charged particles by electromagnetic waves

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Chaos (Woodbury, N. Y.)

DOI:https://doi.org/10.1063/1.3518360· OSTI ID:21567432

Artemyev, A V; Zelenyi, L M ^[1]; Neishtadt, A I ^[1]; Vainchtein, D L ^[1]

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1. Space Research Institute, RAS, Profsouznaya st., 84/32, GSP-7, 117997 Moscow (Russian Federation)

We present an analytical and numerical study of the surfatron acceleration of nonrelativistic charged particles by electromagnetic waves. The acceleration is caused by capture of particles into resonance with one of the waves. We investigate capture for systems with one or two waves and provide conditions under which the obtained results can be applied to systems with more than two waves. In the case of a single wave, the once captured particles never leave the resonance and their velocity grows linearly with time. However, if there are two waves in the system, the upper bound of the energy gain may exist and we find the analytical value of that bound. We discuss several generalizations including the relativistic limit, different wave amplitudes, and a wide range of the waves' wavenumbers. The obtained results are used for qualitative description of some phenomena observed in the Earth's magnetosphere.

• OSTI ID: 21567432
• Journal Information: Chaos (Woodbury, N. Y.), Vol. 20, Issue 4; Other Information: DOI: 10.1063/1.3518360; (c) 2010 American Institute of Physics; ISSN 1054-1500
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
AMPLITUDES
CAPTURE
CHARGED PARTICLES
EARTH MAGNETOSPHERE
ELECTROMAGNETIC RADIATION
GAIN
NUMERICAL ANALYSIS
RELATIVISTIC PLASMA
RELATIVISTIC RANGE
RESONANCE
VELOCITY
AMPLIFICATION
EARTH ATMOSPHERE
ENERGY RANGE
MATHEMATICS
PLASMA
RADIATIONS