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Excitation of lower-hybrid instability by longitudinal currents

Journal Article · · Phys. Fluids; (United States)
DOI:https://doi.org/10.1063/1.865948· OSTI ID:6414839
The stability of a homogeneous plasma with currents along the magnetic field is investigated. It is found that electrons streaming along the magnetic field lines in a neutralizing positive ion background could excite lower-hybrid instability. The critical drift velocity should exceed the parallel phase velocity for instability: V/sub d/ > ..omega../sub r//k/sub parallel/, where ..omega../sub r/ is the lower-hybrid frequency (..cap omega../sub e/..cap omega../sub i/)/sup 1/2/. This condition is found to be easily met in the laboratory and space plasmas and is applicable both in the collisionless and collisional palsmas.
Research Organization:
Science Applications International Corporation, 1710 Goodridge Drive, P. O. Box 1303, McLean,Virginia 22102
OSTI ID:
6414839
Journal Information:
Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:1; ISSN PFLDA
Country of Publication:
United States
Language:
English

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