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Statistical acceleration of electrons by lower-hybrid turbulenceThe statistical acceleration of electrons along an ambient magnetic field by large-amplitude lower-hybrid turbulence is discussed. Perturbations driven by a crossfield current and propagating nearly perpendicular to the applied magnetic field are considered. It is assumed that the instability saturates rapidly and that the fluctuating electric field is predominantly electrostatic. If the turbulence is characterized by a spectrum of small parallel wavenumbers, such that the parallel phase velocity of the waves is greater than the electron thermal velocity, then the turbulence can only accelerate electrons moving with large velocities along the magnetic field. The quasi-linear diffusion equation is solved using a Green's function technique, assuming a power law spectral energy density. The time evolution of an initial Maxwellian distribution is given and the time rate of change of the mean electron energy is calculated for various cases.
Document ID
19810056674
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wu, C. S.
(Maryland, University College Park, MD, United States)
Gaffey, J. D., Jr.
(U.S. Navy, Naval Research Laboratory, Washington DC, United States)
Liberman, B.
(Rio Grande do Sul, Universidade Federal, Porto Alegre, Brazil)
Date Acquired
August 11, 2013
Publication Date
June 1, 1981
Publication Information
Publication: Journal of Plasma Physics
Volume: 25
Subject Category
Plasma Physics
Accession Number
81A41078
Funding Number(s)
CONTRACT_GRANT: NGL-21-002-005
Distribution Limits
Public
Copyright
Other

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