Comprehensive Analysis on the Role of Helical Movement of the Magnetic Axis in Stellarators

Comprehensive Analysis on the Role of Helical Movement of the Magnetic Axis in Stellarators

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 s...

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Veröffentlicht in:Plasma and Fusion Research 2014/05/07, Vol.9, pp.3402031-3402031
1. Verfasser: OKAMURA, Shoichi
Format: Artikel
Sprache:eng
Schlagworte:
boundary shape
Fourier modes
helical axis
magnetic axis
magnetic configuration
non-planar axis
stellarator
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Zusammenfassung: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.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.9.3402031