Low-Frequency Instabilities in Magnetic Pulses
- 1 November 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 4 (5), 2094-2103
- https://doi.org/10.1103/physreva.4.2094
Abstract
Electrons drifting relative to ions across a magnetic field are found to drive a set of intermediate-frequency long-wavelength waves () unstable for any temperature ratio One instability is caused by the coupling of a drift wave in a nonuniform plasma to either the ion plasma oscillation or a lower hybrid oscillation, depending on density and field strength. Another instability is a form of the two-stream instability, shown here to exist even for drift speeds less than electron thermal speeds. Growth rates are on the order of the ion plasma (or lower hybrid) frequency, depending on the density and field strength.
Keywords
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