[Table of Contents]

Plasma and Fusion Research

Volume 6, 1202095 (2011)

Rapid Communications

Measuring Electron Temperature in the Tandem Mirror GAMMA 10 Plasma Using a Yttrium-Aluminum-Garnet Thomson Scattering System
Masayuki YOSHIKAWA, Fumiaki YAGUCHI, Yoshiaki MIYATA, Masato MORIMOTO, Yoriko SHIMA, Ichihiro YAMADA1), Kazuo KAWAHATA1), Hisamichi FUNABA1), Ryo YASUHARA1), Takashi MINAMI2), Kazumichi NARIHARA1), Yousuke NAKASHIMA, Makoto ICHIMURA and Tsuyoshi IMAI
Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
1)
National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
2)
Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
(Received 11 March 2011 / Accepted 11 June 2011 / Published 12 July 2011)

Abstract

A yttrium-aluminum-garnet Thomson scattering (TS) system was constructed and applied to the tandem mirror GAMMA 10 plasma to measure the electron temperature. A large solid-angle TS light-collection system was set using a spherical mirror system and a large numerical aperture of bundled optical fiber. A five-channel polychromator with avalanche silicon photo diodes was employed after being calibrated with standard light. Calibration was performed by Rayleigh and Raman scattering. An electron temperature increase from 40 eV to 80 eV was observed with application of electron cyclotron heating to plug/barrier cells.

Keywords

tandem mirror, GAMMA 10, Thomson scattering

DOI: 10.1585/pfr.6.1202095

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References

  • [1] M. Yoshikawa, Y. Miyata, M. Mizuguchi et al., Fusion Sci. Technol. 57, 312 (2010).
  • [2] M .Yoshikawa, Y. Miyata, M. Mizuguchi et al., Plasma Fusion Res. 5, S2010 (2010).
  • [3] Y. Miyata, T. Cho, M. Yoshikawa et al., Plasma Fusion Res. 2, S1101 (2007).
  • [4] K. Narihara, I. Yamada, H. Hayashi and K. Yamauchi, Rev. Sci. Instrum. 72, 1122 (2001).

This paper may be cited as follows:

Masayuki YOSHIKAWA, Fumiaki YAGUCHI, Yoshiaki MIYATA, Masato MORIMOTO, Yoriko SHIMA, Ichihiro YAMADA, Kazuo KAWAHATA, Hisamichi FUNABA, Ryo YASUHARA, Takashi MINAMI, Kazumichi NARIHARA, Yousuke NAKASHIMA, Makoto ICHIMURA and Tsuyoshi IMAI, Plasma Fusion Res. 6, 1202095 (2011).