Configuration Optimization of a Planar-Axis Stellarator with a Reduced Shafranov Shift
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Magnetic configurations of LHD experiment are analyzed based on the Fourier modes of the plasma boundary shapes. It was found that a small number of Fourier modes is sufficient to determine the confinement characteristics of different configurations with the magnetic axis shift of LHD. A new configuration is proposed with adifferent combination of Fourier modes, which has good particle orbits and a favorable property of high beta equilibrium. This solution has a smaller Shafranov shift than the inward-shifted configuration of LHD.
- Plasma and Fusion Research
Plasma and Fusion Research 8(0), 2402029-2402029, 2013
The Japan Society of Plasma Science and Nuclear Fusion Research