Toroidal drift mode stability in a contaminated plasma

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860621· OSTI ID:6072124

Jarmen, A; Froejdh, M ^[1]

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1. Institute for Electromagnetic Field Theory and Plasma Physics (EURATOM-NFR Association), Chalmers University of Technology, Goeteborg (Sweden)

Toroidal drift mode features and stability are studied, using a fluid description, for a plasma with two ion species: impurity and main ions. Impurity and main ion temperature gradient (ITG) modes dominate for larger temperature gradients, [eta][sub [ital i]][gt]1, while dissipative trapped electron (DTE) and impurity-induced modes are present also for [eta][sub [ital i]][lt]1. Simple analytical expressions for the stability thresholds are derived from conditions given by the impurity and main ion fluids.

• OSTI ID: 6072124
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:11; ISSN PFBPEI; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330 -- Plasma Kinetics
Transport
& Impurities-- (1992-)
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
ANNULAR SPACE
CHARGED PARTICLES
CLOSED CONFIGURATIONS
CLOSED PLASMA DEVICES
CONFIGURATION
DRIFT INSTABILITY
IMPURITIES
INSTABILITY
ION TEMPERATURE
IONS
MAGNETIC FIELD CONFIGURATIONS
PLASMA DRIFT
PLASMA IMPURITIES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
SPACE
TEMPERATURE GRADIENTS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION