Electron beam acceleration by nonresonantly driven relativistic electron plasma waves

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870512· OSTI ID:6640069

Sugaya, R ^[1]

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

Acceleration and heating of a relativistic electron beam induced by nonlinear Landau damping of intense electromagnetic waves in a plasma are investigated theoretically based on kinetic wave equations and momentum-space diffusion equations derived from relativistic Vlasov--Maxwell equations. Two electromagnetic waves excite nonresonantly a beat-wave driven relativistic electron plasma wave with a phase velocity near the speed of light [[ital v][sub [ital p]]=[ital c](1[minus][gamma][sup [minus]2][sub [ital p]])[sup 1/2], [gamma][sub [ital p]]=[omega]/[omega][sub [ital pe]]]. This wave interacts nonlinearly with the electron beam and accelerates effectively it to a highly relativistic energy [gamma][sub [ital pm]][sub [ital ec]][sup 2]. When the beat-wave frequency equals the electron plasma frequency, the beam acceleration and the beat-wave energy density become maximum, and they are equal to those by stimulated Raman scattering.

• OSTI ID: 6640069
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:8; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ACCELERATION
ACCELERATORS
BEAMS
BEAT WAVE ACCELERATORS
DAMPING
ELECTRON BEAMS
EQUATIONS
KINETIC EQUATIONS
LANDAU DAMPING
LEPTON BEAMS
LINEAR ACCELERATORS
PARTICLE BEAMS
PHASE VELOCITY
PLASMA
PLASMA WAVES
RELATIVISTIC PLASMA
VELOCITY