Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Comprehensive Analysis on the Role of Helical Movement of the Magnetic Axis in Stellarators
Shoichi OKAMURA
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2014 Volume 9 Pages 3402031

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Abstract

The physical confinement properties of stellarators are analyzed for the neo-classical transport and the magnetic well. Three typical concepts of stellarators (LHD, Wendelstein 7-X and TJ-II) are compared in terms of the helical movement of cross sections of the last closed magnetic surface. It is shown that this geometric element strongly determines the confinement properties of both non-planar axis and planar axis stellarators.

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© 2014 by The Japan Society of Plasma Science and Nuclear Fusion Research
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