Ion Cyclotron Instabilities in a Bounded Beam-Plasma System
- 1 January 1966
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 5 (1)
- https://doi.org/10.1143/jjap.5.105
Abstract
Ion cyclotron instabilities in a bounded cold beam-plasma system are considered, with an electron beam injected parallel to an applied uniform magnetic field. The conditions and the growth rates of the instabilities of both of the electromagnetic and the electrostatic ion cyclotron waves due to their interactions with the electron beam are obtained. The surface current created by an azimuthal dc spinning times the radial ac displacement of the beam is found to have a significant role on the electromagnetic growth rate, while the presence of warm plasma electrons is found to be essential for the electrostatic instability. It is shown that if the direction of the dc spinning of the beam is in the same sense as that of the plasma ion gyration, the electromagnetic instability is remarkably enhanced.Keywords
This publication has 8 references indexed in Scilit:
- Microinstabilities in Transversely Magnetized Semiconductor PlasmasJournal of Applied Physics, 1965
- Resistive Instabilities in Semiconductor PlasmasJournal of the Physics Society Japan, 1965
- Two-Stream Cyclotron and Plasma Wave InteractionsJournal of Applied Physics, 1965
- Propagation and Instabilities of Waves in Bounded Finite Temperature PlasmasJournal of Applied Physics, 1965
- Sheet-Current Plasma Model for Ion-Cyclotron WavesPhysics of Fluids, 1964
- Instabilities in a Plasma-Beam System Immersed in a Magnetic FieldPhysical Review B, 1963
- Plasma instabilities associated with anisotropic velocity distributionsJournal of Nuclear Energy. Part C, Plasma Physics, Accelerators, Thermonuclear Research, 1961
- Space Charge Waves in Cylindrical Plasma ColumnsJournal of Applied Physics, 1959