Plasma and Fusion Research
Volume 8, 1403156 (2013)
Regular Articles
- 1)
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
Abstract
We analyze linear instability in low beta tokamak plasmas with nonmonotonic q-profiles using resistive magnetohydrodynamic equations. We consider n = 2 (where n is the toroidal mode number) modes for configurations where qmin is close to 1.5 and sufficiently below 2 so that the separation of the rational surfaces with q = 2 is large. Similar instability characteristics arise when qmin is slightly and moderately above 1.5.
Keywords
tokamak, low beta plasma, nonmonotonic safety factor profile, resistive MHD, linear instability
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This paper may be cited as follows:
Goshi YAMADA, Yuji NAKAMURA and Katsumi KONDO, Plasma Fusion Res. 8, 1403156 (2013).