Quantifying the dynamic evolution of individual arched magnetic flux tubes
Identifieur interne : 000015 ( Main/Exploration ); précédent : 000014; suivant : 000016Quantifying the dynamic evolution of individual arched magnetic flux tubes
Auteurs : E V Stenson [États-Unis] ; P M Bellan [États-Unis]Source :
- Plasma Physics and Controlled Fusion [ 0741-3335 ] ; 2012-12.
Abstract
Highly dynamic arched loops of plasma were created in the laboratory with a magnetized plasma gun. The magnetic structure of the loops was found to be consistent with that of an expanding flux tube subject to a kink instability. High-speed flows were found to transport plasma along the loop axis, from both footpoints toward the apex of the arched loop. Two complementary MHD models were used to explain the expansion and axial flows, both of which scale in proportion to a toroidal Alfven speed.
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DOI: 10.1088/0741-3335/54/12/124017
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