Excitation of azimuthal surface modes by relativistic flows of electrons in the high-frequency range

Journal Article · Sun May 15 00:00:00 EDT 2011 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X11040052· OSTI ID:22047526

Girka, V O; Girka, I O; Pavlenko, I V ^[1]

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1. V.N. Karazin Kharkiv National University (Ukraine)

Excitation of extraordinarily polarized azimuthal surface eigenwaves is shown to be possible in the frequency range above the upper hybrid resonance in waveguides with metal walls which are partially filled by cold magnetoactive plasma. Interaction of these waves with flows of electrons which rotate around the plasma column in the narrow gap separating the plasma from the wall of the waveguide is studied. Conditions of resonant interaction of the beam with the mentioned high-frequency azimuthal surface waves are shown by numerical methods to be reachable ones in the case of enough strong external magnetic fields without passing to the field of ultra-relativistic velocities of the beam.

• OSTI ID: 22047526
• Journal Information: Plasma Physics Reports, Vol. 37, Issue 5; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRONS
EXCITATION
HYBRID RESONANCE
MAGNETIC FIELDS
PLASMA
PLASMA WAVES
RELATIVISTIC RANGE
WAVE PROPAGATION
WAVEGUIDES