Electron beam acceleration by nonlinear Landau damping of electromagnetic waves in a plasma

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860972· OSTI ID:6897643

Sugaya, R ^[1]

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1. Department of Physics, Faculty of Science, Ehime University, Matsuyama 790 (Japan)

Acceleration and heating of an electron beam caused by nonlinear Landau damping of intense electromagnetic waves in a plasma are investigated theoretically based on a velocity-space diffusion equation. The beat wave, which does not satisfy the dispersion relation, is excited by the nonlinear interaction of two electromagnetic waves and interacts nonlinearly with the electron beam. As the frequency of the beat wave approaches the electron plasma frequency, the rates of acceleration and heating of the electron beam and the beat wave energy density become maximum values, being equal to those by stimulated Raman scattering. The beat wave is an electrostatic mode that can have a phase velocity near the light velocity and is able to accelerate the electron beam to a relativistic energy.

• OSTI ID: 6897643
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:1; ISSN 0899-8221; ISSN PFBPEI
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ACCELERATION
BEAM-PLASMA SYSTEMS
BEAMS
DAMPING
DIFFUSION
ELECTROMAGNETIC FIELDS
ELECTRON BEAMS
ELECTRON PLASMA WAVES
HEATING
LANDAU DAMPING
LEPTON BEAMS
PARTICLE BEAMS
PLASMA HEATING
PLASMA WAVES