Regular Articles

Full Text / References

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

1)

Japan Atomic Energy Agency, Naka 311-0193, Japan

2)

National Institute for Fusion Science, Toki 509-5292, Japan

(Received 18 January 2010 / Accepted 22 April 2010 / Published 10 December 2010)

Abstract

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.

Copyright (c) 2010 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

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

DOI: 10.1585/pfr.5.S2079

Full Text

PDF format (549Kbytes)

References

• [1] F. Wagner et al., Phys. Rev. Lett. 49, 1408 (1982).
• [2] N. Ohyabu et al., Phys. Rev. Lett. 84, 103 (2000).
• [3] H. Kubo, H. Takenaga, K. Sawada, T. Nakano, S. Kobayashi, S. Higashijima, N. Asakura and K. Shimizu, J. Nucl. Mater. 337, 161 (2005).
• [4] A. Pospieszczyk, Ph. Mertens, G. Sergienko, A. Huber, V. Philipps, D. Reiter, D. Rusbuldt, B. Schweer, E. Vietzke and P. T. Greenland, J. Nucl. Mater. 266, 138 (1999).
• [5] A. Escarguel, B. Pegourie1, J. Hogan, C. De Michelis, Y. Corre, A. Azeroual, J. M. Ane, R. Guirlet, J. Gunn, H. Capes, L. Godbert-Mouret, M. Koubiti and R. Stamm, Plasma Phys. Control. Fusion 43, 1733 (2001).
• [6] K. Sawada, K. Eriguchi and T. Fujimoto, J. Appl. Phys. 73, 8122 (1993).
• [7] K. Sawada and T. Fujimoto, J. Appl. Phys. 73, 8122 (1993).
• [8] T. Shikama, S. Kado, H. Zushi and S. Tanaka, Phys. Plasmas 14, 072509 (2007).
• [9] U. Fantz and B. Heger, Plasma Phys. Control. Fusion 40, 2023 (1998).
• [10] A. Iwamae, M. Hayakawa, M. Atake, T. Fujimoto, M. Goto and S. Morita, Phys. Plasmas 12, 042501 (2005).
• [11] T. Shikama, S. Kado, H. Zushi, M. Sakamoto, A. Iwamae and S. Tanaka, Plasma Phys. Control. Fusion 48, 1125 (2006).

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).