Electron bunches in nonlinear collective beam-plasma interaction

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Sov. Phys. - Usp. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/PU1983v026n02ABEH004321· OSTI ID:5385210

Kovalenko, V P

A number of facts established in numerous experiments on the nonlinear collective interaction of a monoenergetic electron beam with plasma and never previously satisfactorily explained became understandable after the concept of dense bunches, into which an electron beam separates, was developed in the 1970s. In this review, in addition to a description of these facts, the results of theoretical investigations of the formation and evolution of bunches under the conditions of stationary beam injection into a plasma with different parameters are presented. The role of higher-order harmonics of the electric field, dissipation, and plasma temperature is discussed. Special attention is given to experiments concerned with a direct study of the dynamics of electron bunches in plasma. Possible reasons for the observed rapid breakup of these bunches are enumerated. Results of experimental and theoretical investigations of the equilibrium state of bunches, created outside the plasma and then injected into it, are also examined. Under certain conditions, such bunches are conserved in a plasma much better than bunches that form spontaneously, while the periodic quasistationary waves created by them (Bernstein-Green-Kruskal waves) propagate much farther than evolving waves, which are excited when a continuous beam is injected into a plasma.

• Research Organization: Institute of Physics, Academy of Sciences of the Ukrainian SSR
• OSTI ID: 5385210
• Journal Information: Sov. Phys. - Usp. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Usp. (Engl. Transl.); (United States) Vol. 26:2; ISSN SOPUA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700103* -- Fusion Energy-- Plasma Research-- Kinetics
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
BEAM BUNCHING
BEAM DYNAMICS
BEAM INJECTION
BEAM-PLASMA SYSTEMS
BEAMS
DISPERSION RELATIONS
DOCUMENT TYPES
ELECTRON BEAM INJECTION
ELECTRON BEAMS
HARMONICS
LEPTON BEAMS
NONLINEAR PROBLEMS
OSCILLATIONS
PARTICLE BEAMS
REVIEWS
TRAVELLING WAVES
WAVE PROPAGATION