Neoclassical tearing physics in the spherical tokamak MAST

Physical Review Letters
R J ButteryMAST Team

Abstract

Results from MAST provide a first test of neoclassical tearing mode physics in the spherical tokamak (ST). The mode accounts for the main performance limit in conventional tokamaks. Its behavior in the ST is remarkably well described by existing theoretical models, although it is more readily seeded by sawtooth events in these scenarios. Modeling confirms the significance of stabilizing field-curvature effects. This provides good grounds for optimism that with suitable control of profiles, it may be possible to avoid these modes in the ST.

References

Jun 5, 1995·Physical Review Letters·Z ChangM C Zarnstorff
Oct 4, 2000·Physical Review Letters·A SykesH R Wilson
Mar 23, 2002·Physical Review Letters·O SauterJ Rapp

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Citations

Mar 21, 2008·Physical Review Letters·K IdaUNKNOWN LHD Experimental Group

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