Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Rapid Communications
Impacts of External Momentum Torque on Impurity Particle Transport in LHD
Masanori NUNAMIMasahiko SATOMotoki NAKATAShinichiro TODAHideo SUGAMAMasayuki YOKOYAMAHiroyuki YAMAGUCHI
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2017 Volume 12 Pages 1203039

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Abstract

Particle transport processes of impurity ions in a multi-ion-species plasma in the Large Helical Device are investigated by neoclassical transport simulations. While the quasi-linear gyrokinetic analyses indicate that the anomalous contribution of the impurity particle transport is radially inward-directed, it is found that the external momentum sources can cause the existence of the electron root with positive radial electric field and outward-directed neoclassical particle flux of the impurity ion.

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© 2017 by The Japan Society of Plasma Science and Nuclear Fusion Research
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