Results 231 to 240 of about 5,148,143 (269)

Models of Resonant Wave‐Particle Interactions

Journal of Geophysical Research: Space Physics, 2021
AbstractRadiation belt electrons are strongly affected by resonant interactions with cyclotron‐resonant waves. For broad band, small amplitude waves the interactions are well described by quasi‐linear diffusion in pitch angle and energy, but coherent, large amplitude waves such as strong whistler mode chorus call for a different treatment. The standard
J. M. Albert, A. V. Artemyev, W. Li, L. Gan, Q. Ma   +4 more
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Relativistic structure of stochastic wave–particle interaction

The Physics of Fluids, 1988
Stochastic interactions of charged particles with electrostatic waves propagating at arbitrary angles to an external magnetic field are studied based on a relativistic canonical Hamiltonian formalism. The present theory, however, is valid also for electromagnetic waves after a slight modification.
Akimoto, K., Karimabadi, H.
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A Modified Fermi Model for Wave-Particle Interactions in Plasmas

Physical Review Letters, 2006
Wave-particle interactions in plasmas are investigated through a nonlinear map that describes elastic collisions between an ensemble of particles and two barriers. The amplitude of the barriers, proportional to the energy of the wave, can increase or decrease due to the sequence of stochastic collisions.
DE MARCO R., CARBONE, Vincenzo, VELTRI, Pierluigi   +2 more
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Wave–particle interactions in plasmas

Plasma Physics and Controlled Fusion, 2006
An overview of the interactions between waves and particles in plasmas is given. Interest is focused on cases where special particle populations, like energetic particle tails, interact with waves. The two basic, but inter-related, mechanisms through which waves and particles can exchange energy, resonance and stochastization are briefly illustrated ...
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ON THE EFFICIENCY OF WAVE-PARTICLE INTERACTION

Problems of Atomic Science and Technology
The efficiency of acceleration of charged particles during cyclotron resonances and acceleration of particles in a vacuum without an external magnetic field are considered. It is shown that the statement formulated in Lawson-Woodward theorem that relativistic particles do not exchange energy with an external electromagnetic wave in a vacuum is not ...
V.A. Buts, A.G. Zagorodny
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Wave-particle interactions in the outer magnetosphere: A review

Space Science Reviews, 1975
The application of wave-particle interactions to magnetospheric phenomenology is so extensive and wide-ranging that to attempt to review it in its entirety would result in the production of a sizeable monographic book. For this reason, I have chosen to restrict the present review to only wave-particle interactions and their implication in outer ...
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Linear Wave-Particle Interactions

1998
Abstract Collisionless absorption of h.f. power is a remarkable property of hot plasmas, and it is of great theoretical interest to understand how it occurs. It also has practical importance, since the possibility of selective dissipation and thermalisation of h.f. waves with the appropriate frequency, phase velocity, and polarization is
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Wave–Particle and Wave–Wave Interactions

2012
In Chap. 3 we have discussed how plasma responds to an external (weak) electromagnetic perturbation, which results in a specific wave dispersion and damping. This damping is linear, i.e., proportional to the wave amplitude and there is no change in the plasma distribution function other than small oscillations proportional to the wave amplitude ...
Gregory D. Fleishman, Igor N. Toptygin
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Gyroresonant Wave-Particle Interactions

1972
This review will be restricted to gyroresonant interactions. The basic processes of these interactions are discussed in the frame of the quasi-linear theory. Frequencies of interaction, anisotropy of the particle distribution function, and amplification and diffusion coefficients are computed for different types of interaction and different regions of ...
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Ac Fields and Wave Particle Interactions

1970
Several new experiments provide detailed information about electrostatic and electromagnetic plasma waves in the outer magnetosphere, magnetosheath, and solar wind. Dipole antennas now commonly detect the electric components of whistler mode chorus and triggered emissions near 20 to 50 % of the local or equatorial gyrofrequency, and purely ...
F. L. Scarf, C. F. Kennel, R. W. Fredricks, I. M. Green, G. M. Crook   +4 more
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