Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Configuration Optimization of a Planar-Axis Stellarator with a Reduced Shafranov Shift
Shoichi OKAMURA
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2013 Volume 8 Pages 2402029

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Abstract

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.

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© 2013 by The Japan Society of Plasma Science and Nuclear Fusion Research
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