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Effect of impurities on the tearing mode in toroidal geometry

Journal Article · · Sov. J. Plasma Phys. (Engl. Transl.); (United States)
OSTI ID:5769251
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The role played by impurities in the tearing mode is analyzed. An impurity changes the interval of values of the parameter eta = dlnT/sub 0//dlnn/sub 0/ (T/sub 0/ and n/sub 0/ are the plasma temperature and density) in which the ''electron'' branch of the tearing mode is unstable. The kinetic contribution from passing bulk ions at eta = 0 drives the inertial branch of the tearing mode. The kinetic contribution of the passing impurity ions, in contrast, tends to stabilize this branch.
OSTI ID:
5769251
Journal Information:
Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 8:5; ISSN SJPPD
Country of Publication:
United States
Language:
English

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANNULAR SPACE
CLOSED PLASMA DEVICES
CONFIGURATION
IMPURITIES
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC SURFACES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SPACE
TEARING INSTABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION