Quasilinear evolution of current-driven ion-acoustic instability in a magnetic field

Journal Article · Mon May 30 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.50.1783· OSTI ID:5953700

Ishihara, O; Hirose, A

Three-dimensional evolution of current-driven ion-acoustic instability in a magnetic field is studied numerically in the quasilinear framework. The electron-cyclotron resonance (anomalous Doppler effect) is shown to be responsible for the observed rapid cross-field heating of electrons. The formation of a high-energy ion tail, previously studied in a one-dimensional model, remains effective both parallel and perpendicular to the electron current and governs the saturation of the instability, subsequent decay, and anomalous k spectrum dominated by cross-field modes.

• Research Organization: Department of Physics, University of Saskatchewan, Saskatoon S7N0W0, Canada
• OSTI ID: 5953700
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:22; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
CROSSED FIELDS
CURRENTS
ECR HEATING
ELECTRIC CURRENTS
HEATING
HIGH-FREQUENCY HEATING
INSTABILITY
ION ACOUSTIC WAVES
ION WAVES
MAGNETIC FIELDS
NUMERICAL SOLUTION
PLASMA
PLASMA HEATING
PLASMA INSTABILITY
PLASMA WAVES
SATURATION
THREE-DIMENSIONAL CALCULATIONS