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Magnetic island: Difference between revisions
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The rupture of the assumed initial topology of toroidally nested flux surfaces needed to produce the island requires the reconnection of magnetic field lines, which can only occur with finite resistivity. | The rupture of the assumed initial topology of toroidally nested flux surfaces needed to produce the island requires the reconnection of magnetic field lines, which can only occur with finite resistivity. | ||
<ref>[http://dx.doi.org/10.1088/0029-5515/49/10/104025 F.L. Waelbroeck, ''Theory and observations of magnetic islands'', Nucl. Fusion '''49''' (2009) 104025]</ref> | <ref>[http://dx.doi.org/10.1088/0029-5515/49/10/104025 F.L. Waelbroeck, ''Theory and observations of magnetic islands'', Nucl. Fusion '''49''' (2009) 104025]</ref> | ||
[[Stellarator]]s may have a vacuum magnetic field structure that already contains some islands (so-called 'natural islands'). | |||
Since these are completely determined by the external magnetic field, they are static. | |||
== Island growth and saturation == | == Island growth and saturation == | ||