[Table of Contents]

Plasma and Fusion Research

Volume 6, 1401050 (2011)

Regular Articles

Method for Estimating the Wavenumber of Standing Waves Using Three Langmuir Probes
Tatsuya KOBAYASHI, Yoshihiko NAGASHIMA1), Shigeru INAGAKI2), Hiroyuki ARAKAWA, Makoto SASAKI2), Takuma YAMADA1), Masatoshi YAGI2), Naohiro KASUYA3), Akihide FUJISAWA2), Sanae-I. ITOH2) and Kimitaka ITOH3)
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
1)
Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 277-8561, Japan
2)
Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan
3)
National Institute for Fusion Science, Toki 509-5292, Japan
(Received 5 January 2011 / Accepted 25 April 2011 / Published 31 May 2011)

Abstract

A new method for estimating the wavenumber of a standing wave system by using three Langmuir probes is proposed. Analytical formulae are derived from a simple model in which two waves of the same frequency and the same wavenumber propagate in opposite directions. The proposed method can estimate the wavenumber correctly even if the two waves have equal amplitude.

Keywords

drift wave, standing wave, Langmuir probe, wavenumber measurement, cross phase

DOI: 10.1585/pfr.6.1401050

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References

  • [1] P.H. Diamond et al., Plasma Phys. Control. Fusion 47, R35 (2005).
  • [2] K. Itoh et al., Phys. Plasmas 13, 055502 (2007).
  • [3] Y. Nagashima et al., Phys. Plasmas 16, 20706 (2009).
  • [4] M. Sasaki et al., Contrib. Plasma Phys. 48, 68 (2008).
  • [5] T. Ido et al., Plasma Phys. Control. Fusion 48, S41 (2006).
  • [6] K. Hallatschek et al., Phys. Rev. Lett. 86, 1223 (2001).
  • [7] N. Miyato et al., Phys. Plasma 11, 5557 (2004).
  • [8] T. Yamada et al., Rev. Sci. Instrum. 78, 123501 (2007).
  • [9] T. Yamada et al., Nature Phys. 4, 721 (2008).
  • [10] M. Ramisch et al., New J. Phys. 5, 12.1 (2003).

This paper may be cited as follows:

Tatsuya KOBAYASHI, Yoshihiko NAGASHIMA, Shigeru INAGAKI, Hiroyuki ARAKAWA, Makoto SASAKI, Takuma YAMADA, Masatoshi YAGI, Naohiro KASUYA, Akihide FUJISAWA, Sanae-I. ITOH and Kimitaka ITOH, Plasma Fusion Res. 6, 1401050 (2011).