NIFS-130

FULL TEXT (PDF, 959 KB)


Author(s):

T. Hayashi, A. Takei and T. Sato

Title:

Magnetic Surface Breaking in 3D MHD Equilibria of l=2 Heliotron

Date of publication:

Jan. 1992

Key words:

helical system, Heliotron, 3D MHD equilibrium, magnetic surface breaking, finite pressure effect, equilibrium beta limit, vertical field, quadrupole field, hexapole field, l=1 coil, magnetic island

Abstract:

Magnetic surface breaking due to the finite pressure effect is analyzed for three dimensional magnetohydrodynamic equilibria of l=2 Heliotron configuration. Characteristics of magnetic island formation are extensively surveyed. It is found that the well-hill criterion which has been predicted by the local analysis is not always applicable for all cases.

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