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Magnetic island: Difference between revisions
→Island control
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Island control is possible by tailoring the ''q''-profile, external magnetic fields, | Island control is possible by tailoring the ''q''-profile, external magnetic fields, | ||
<ref>[http://dx.doi.org/10.1088/0741-3335/44/7/323 S.R. Hudson et al, Plasma Phys. Control. Fusion '''44''' (2002) 1377]</ref> | <ref>[http://dx.doi.org/10.1088/0741-3335/44/7/323 S.R. Hudson et al, ''Free-boundary full-pressure island healing in stellarator equilibria: coil-healing'', Plasma Phys. Control. Fusion '''44''' (2002) 1377]</ref> | ||
and the pressure profile. | and the pressure profile, or by spinning up the plasma. | ||
<ref>[http://dx.doi.org/10.1088/0741-3335/45/12A/012 H. Zohm et al,''MHD limits to tokamak operation and their control'', Plasma Phys. Control. Fusion '''45''' (2003) A163]</ref> | |||
Pressure effects can lead to 'island healing'. | Pressure effects can lead to 'island healing'. | ||
<ref>[http://dx.doi.org/10.1088/0029-5515/45/7/006 R. Kanno et al, Nucl. Fusion '''45''' (2005) 588]</ref> | <ref>[http://dx.doi.org/10.1088/0029-5515/45/7/006 R. Kanno et al, ''Formation and healing of n = 1 magnetic islands in LHD equilibrium'', Nucl. Fusion '''45''' (2005) 588]</ref> | ||
Active control of islands by external means is also possible (cf. the 'Seek and destroy' technique, under development <ref>[http://www.rijnhuizen.nl/en/node/195 Seek and Destroy System for magnetic island control]</ref>). | Active control of islands by external means is also possible (cf. the 'Seek and destroy' technique, under development <ref>[http://www.rijnhuizen.nl/en/node/195 Seek and Destroy System for magnetic island control]</ref>). | ||