Results 111 to 120 of about 42,541 (164)
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Plasma Physics and Controlled Fusion, 2000
We seek a description of plasma wave-particle interactions in the weakly collisional regime. Because weak collisions produce a qualitative change in the plasma degrees of freedom without totally suppressing kinetic effects, neither the Vlasov limit nor the fluid moment limit are found to be an adequate description of experimental data.
F Skiff +4 more
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We seek a description of plasma wave-particle interactions in the weakly collisional regime. Because weak collisions produce a qualitative change in the plasma degrees of freedom without totally suppressing kinetic effects, neither the Vlasov limit nor the fluid moment limit are found to be an adequate description of experimental data.
F Skiff +4 more
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Models of Resonant Wave‐Particle Interactions
Journal of Geophysical Research: Space Physics, 2021AbstractRadiation 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 +4 more
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Wave-particle interaction at double resonance
Physical Review E, 2008This paper is devoted to studying wave-particle interaction at "double resonance" condition, i.e., when two waves interact resonantly with the same group of charged particles. A theoretical Hamiltonian model and a symplectic numerical code are built to describe the three-dimensional interactions of wave spectra with resonant electrons in a magnetized ...
A, Zaslavsky +3 more
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Convection and wave-particle interactions
Journal of Atmospheric and Terrestrial Physics, 1978Abstract We study, by means of the adiabatic invariants and Liouville's theorem, the deformation of the distribution functions of substorm injected particles in the magnetosphere. Assuming a steady-state convection process, we can obtain simple analytical expressions for the particle flux, the anisotropy and the growth rate of electromagnetic ...
Jacques Solomon, René Pellat
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2014
AbstractIn this Chapter an alternative derivation of the self-consistent Vlasov-Maxwell equations for wave-particles interaction is given. The analysis is carried out under a rigorous Hamiltonian framework and targeted to modeling the dynamics of the Free Electron Laser.
A. Campa +3 more
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AbstractIn this Chapter an alternative derivation of the self-consistent Vlasov-Maxwell equations for wave-particles interaction is given. The analysis is carried out under a rigorous Hamiltonian framework and targeted to modeling the dynamics of the Free Electron Laser.
A. Campa +3 more
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1984
Note: Magnetospheric studies of the interactions between plasma waves and particles have generally been performed using Gaussian units. To allow the material presented here to be conveniently used in conjunction with other published material on magnetospheric wave-particle interactions, we have not converted equations from the literature into MKS units.
L. R. Lyons, D. J. Williams
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Note: Magnetospheric studies of the interactions between plasma waves and particles have generally been performed using Gaussian units. To allow the material presented here to be conveniently used in conjunction with other published material on magnetospheric wave-particle interactions, we have not converted equations from the literature into MKS units.
L. R. Lyons, D. J. Williams
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Relativistic structure of stochastic wave–particle interaction
The Physics of Fluids, 1988Stochastic 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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New resonances in wave–particle interactions
Physics of Plasmas, 2023One of the most characteristic features of relativistic particle dynamics at cyclotron resonances is the stepwise dependence of energy and momentum on time [V. A. Buts and A. G. Zagorodny, Phys. Plasmas 28(2), 022311 (2021)]. The reason for these steps is the phase synchronization of charged particles and waves. To describe other features, we introduce
V. A. Buts, A. G. Zagorodny
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Computational models for wave-particle interactions
Computer Physics Communications, 1986Abstract A 2-D finite-element evolution Fokker-Planck code, BACCHUS, is presented. The originally current-drive version and a more recent bounce-averaged version are discussed in some detail. A 1 1 2 - D quasi-linear code, RUNAWAY, is also described, especially to elucidate the major difficulties arising when the wave-particle interaction ...
S. Succi +5 more
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Wave–particle interactions in plasmas
Plasma Physics and Controlled Fusion, 2006An 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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