Eliminating Islands in High-pressure Free-boundary Stellarator Magnetohydrodynamic Equilibrium Solutions

[摘要] Magnetic islands in free-boundary stellarator equilibria are suppressed using a procedure that iterates the plasma equilibrium equations and, at each iteration, adjusts the coil geometry to cancel resonant fields produced by the plasma. The coils are constrained to satisfy certain measures of engineering acceptability and the plasma is constrained to ensure kink stability. As the iterations continue, the coil geometry and the plasma simultaneously converge to an equilibrium in which the island content is negligible. The method is applied with success to a candidate plasma and coil design for the National Compact Stellarator eXperiment [Physics of Plasma, 7 (2000) 1911].

[发布日期] 2002-11-19 [发布机构] Princeton University. Plasma Physics Laboratory.

[关键词] 75 Condensed Matter Physics, Superconductivity And Superfluidity;Toroidal Mhd Equilibrium;70 Plasma Physics And Fusion Technology;Geometry;Stellarators