Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Measurement of Impurity Emission Intensity Distribution in the Edge Region of LHD and Its Relation with Magnetic Field Structure
Taisuke KOBAYASHIMasahiro KOBAYASHIArseniy KUZMINMotoshi GOTOHirohiko TANAKAGakushi KAWAMURAByron J. PETERSONNaofumi IWAMALHD Experiment Group
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2018 Volume 13 Pages 3402030

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Abstract

In order to understand plasma transport in the edge stochastic layers, a visible spectrometer has been developed. Two-dimensional impurity emission intensity distributions in the edge stochastic layer of LHD, including divertor plate, divertor legs, X-point, and the last closed flux surface, have been measured. Carbon emission intensities and their distributions are found to be clearly different depending on the different magnetic field configuration and on the charge state. Effects of the edge magnetic field structure on these results are discussed.

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© 2018 by The Japan Society of Plasma Science and Nuclear Fusion Research
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