Space-resolved visible spectroscopy for two-dimensional measurement of hydrogen and impurity emission spectra and of plasma flow in the edge stochastic layer of LHD

A space-resolved visible spectrometer system has been developed for two-dimensional (2D) distribution measurements of hydrogen and impurity emission spectra and of plasma flow in the edge stochastic layer of Large Helical Device (LHD). Astigmatism of the spectrometer has been suppressed by introduci...

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Bibliographic Details
Published in:Review of scientific instruments 2017-03, Vol.88 (3), p.033501
Main Authors: Kobayashi, M., Morita, S., Goto, M.
Format: Article
Language:English
Subjects:
Astigmatism
Dimensional measurement
Doppler effect
Emission spectra
Error correction
Flow velocity
Grooves
Hydrogen
Impurities
Legs
Magnetic fields
Optical fibers
Plasma
Position measurement
Scientific apparatus & instruments
Spectral resolution
Spectrum analysis
Two dimensional flow
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