Destabilized ion acoustic mode in toroidal plasmas

Journal Article · Wed May 01 04:00:00 EDT 1991 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859803· OSTI ID:5618184

Hirose, A ^[1]

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1. Plasma Physics Laboratory, Department of Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W0, Canada (CA)

An unstable long-wavelength electrostatic mode well described by {omega}{congruent}{omega}{sub {ital s}} (the ion acoustic transit frequency) has been identified in an isothermal ({ital T}{sub {ital i}}{congruent}{ital T}{sub {ital e}}) tokamak. The ion Landau damping is prohibited by the ion magnetic drift provided {omega}{gt}0. For realistic discharge parameters, the mode frequency exceeds the diamagnetic frequency by a factor 2 to 3 at the stability boundary.

• OSTI ID: 5618184
• Journal Information: Physics of Fluids B; (USA), Journal Name: Physics of Fluids B; (USA) Vol. 3:5; ISSN 0899-8221; ISSN PFBPE
• 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
ANNULAR SPACE
CHARGED PARTICLES
CLOSED CONFIGURATIONS
CLOSED PLASMA DEVICES
CONFIGURATION
DAMPING
ELECTROSTATICS
FLUID MECHANICS
HYDRODYNAMICS
ION ACOUSTIC WAVES
ION WAVES
IONS
ISOTHERMAL PROCESSES
LANDAU DAMPING
MAGNETIC FIELD CONFIGURATIONS
MECHANICS
PLASMA
PLASMA WAVES
SPACE
STABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION