Abstract
A class of low-β stellarator magnetohydrodynamic (MHD) equilibria with β∼(α/R0)2 is introduced, and the corresponding toroidal shift is calculated. It is shown that an apparent paradox exists with regard to the problem of position control in that a vertical field is capable of shifting vacuum flux surfaces, but produces no net body force on a current-free stellarator. This paradox is resolved by an analysis of the transient response of the plasma and demonstrates how the vertical field can be used as a means of position control.
Original language | English |
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Pages (from-to) | 2093-2100 |
Number of pages | 8 |
Journal | Physics of Fluids |
Volume | 27 |
Issue number | 8 |
DOIs | |
State | Published - 1984 |
Externally published | Yes |