[Table of Contents]

Plasma and Fusion Research

Volume 5, S2079 (2010)

Regular Articles

Development of Multi-Wavelength-Range High-Resolution Spectrometer for Hydrogen Atomic and Molecular Emission Lines
Keisuke FUJII, Taiichi SHIKAMA, Atsushi IWAMAE1), Motoshi GOTO2), Shigeru MORITA2) and Masahiro HASUO
Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
Japan Atomic Energy Agency, Naka 311-0193, Japan
National Institute for Fusion Science, Toki 509-5292, Japan
(Received 18 January 2010 / Accepted 22 April 2010 / Published 10 December 2010)


We have developed a spectrometer specialized for a simultaneous high-resolution measurement of emission spectra of the hydrogen atomic Balmer-α, -β, -γ lines and molecular Fulcher-α (v' = v'' = 0) and (v' = v'' = 2) ro-vibronic bands, where v' and v'' is the vibrational quantum number. The instrumental widths for the respective wavelength ranges are 0.008, 0.009, 0.010, 0.008, and 0.007 nm. We apply the spectrometer to the observation of emissions from a LHD plasma. The observed profiles of these emission lines and bands show polarization dependence. The absolute intensities of these emissions are also estimated.


LHD, hydrogen, atomic and molecular emissions, Zeeman spectroscopy, peripheral plasma

DOI: 10.1585/pfr.5.S2079


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This paper may be cited as follows:

Keisuke FUJII, Taiichi SHIKAMA, Atsushi IWAMAE, Motoshi GOTO, Shigeru MORITA and Masahiro HASUO, Plasma Fusion Res. 5, S2079 (2010).