Surface waves on the boundary of a conducting medium and their excitation by a relativistic electron beam

Journal Article · Fri Sep 15 00:00:00 EDT 2017 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X17090045· OSTI ID:22760302

Kukushkin, A. V., E-mail: [e-mail] ^[1]; Rukhadze, A. A., E-mail: [e-mail] ^[2]

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1. Nizhny Novgorod State Technical University (Russian Federation)
2. Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

Excitation of surface waves by a relativistic electron beam propagating over a conducting cylindrical medium (metal or highly ionized plasma) is investigated theoretically. Dispersion relations describing the linear interaction of surface electromagnetic waves with a monoenergetic electron beam are derived, and the growth rates and spatial amplification factors of excited waves are determined. Condition for the nonlinear trapping of the beam electrons by a surface wave is used to determine the maximum amplitude of the excited wave and the optimal radiator length. The electric field of a surface wave excited by an electron beam is estimated for a particular case.

• OSTI ID: 22760302
• Journal Information: Plasma Physics Reports, Vol. 43, Issue 9; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DISPERSION RELATIONS
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
NONLINEAR PROBLEMS
RELATIVISTIC RANGE
WAVE PROPAGATION