Eliminating Islands in High-Pressure Free-Boundary Stellarator Magnetohydrodynamic Equilibrium Solutions

S. R. Hudson, D. A. Monticello, A. H. Reiman, A. H. Boozer, D. J. Strickler, S. P. Hirshman, and M. C. Zarnstorff
Phys. Rev. Lett. 89, 275003 – Published 20 December 2002

Abstract

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 [Phys. Plasmas 8, 2083 (2001)].

  • Figure
  • Received 3 June 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.275003

©2002 American Physical Society

Authors & Affiliations

S. R. Hudson1, D. A. Monticello1, A. H. Reiman1, A. H. Boozer2, D. J. Strickler3, S. P. Hirshman3, and M. C. Zarnstorff1

  • 1Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543
  • 2Columbia University, New York, New York 10027
  • 3Oak Ridge National Laboratory, P.O. Box 2009, Oak Ridge, Tennessee 37831

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Issue

Vol. 89, Iss. 27 — 30 December 2002

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