Theory of the tokamak beta limit and implications for second stability
- 1 August 1991
- journal article
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 3 (8), 2247-2250
- https://doi.org/10.1063/1.859643
Abstract
A comprehensive picture of the tokamak stability limits against ideal magnetohydrodynamic (MHD) pressure‐gradient‐driven modes is put forward. The approach is based on scaling arguments for large q, and affords a first principle understanding of the Troyon limit once the normalized ratio βaB/I is modified by an extra q0 factor. The effects related to a possible access to the second stability region are clarified.Keywords
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