Physics – Plasma Physics
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rspta.300..525r&link_type=abstract
(Royal Society, Discussion on High Temperature Plasma Physics and Its Applications, London, England, Apr. 16, 17, 1980.) Royal S
Physics
Plasma Physics
1
Magnetohydrodynamic Stability, Plasma Currents, Plasma Jets, Reverse Field Pinch, Toroidal Plasmas, Current Density, Current Distribution, Electrical Resistivity, Magnetic Field Configurations, Plasma Control, Plasma Oscillations, Plasma Pinch, Solar Flares, Tokamak Devices
Scientific paper
The experimental behavior of plasma instabilities in high-current discharges is found to be in good agreement with the predictions of linear and nonlinear magnetohydrodynamic theory. Observations show that on time-scales comparable with the Alfven transit time there are rapidly growing ideal magnetohydrodynamic perturbations whereas experiments on longer time-scales show the growth and saturation of resistive instabilities which involve changes in field line topology. The plasmas are observed to exhibit self-control mechanisms which are related to the relaxation of configurations to states of lower magnetic energy. Rapid magnetic field line reconnection phenomena, as in solar flares, are observed.
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