[Table of Contents]

Plasma and Fusion Research

Volume 5, S2049 (2010)

Regular Articles

Fluctuation Measurement in the Edge Plasma on TST-2
Yoshihiko NAGASHIMA, Jun'ichi OZAKI, Masateru SONEHARA, Yuichi TAKASE, Akira EJIRI, Kotaro YAMADA, Hidetoshi KAKUDA, Shigeru INAGAKI1), Takuya OOSAKO, Byung Il AN, Hiroyuki HAYASHI, Kentaro HANASHIMA, Junichi HIRATSUKA, Hiroaki KOBAYASHI, Hiroki KURASHINA, Hazuki MATSUZAWA, Takuya SAKAMOTO, Takashi YAMAGUCHI, Osamu WATANABE and Takuma WAKATSUKI
The University of Tokyo, Chiba 277-8561, Japan
1)
Kyushu University, Kasuga 816-8580, Japan
(Received 9 December 2009 / Accepted 8 February 2010 / Published 10 December 2010)

Abstract

A new technique is used to estimate the amplitude of temperature fluctuation in the edge plasma on TST-2. Langmuir probe current-voltage characteristic curves are conditionally reconstituted in terms of the intensity of the floating potential. High/low electron temperatures are obtained in low/high floating potential phases. As a result, normalized temperature fluctuation levels are found to be about 19 % or larger.

Keywords

plasma turbulence, temperature fluctuation, edge plasma, conditional technique

DOI: 10.1585/pfr.5.S2049

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This paper may be cited as follows:

Yoshihiko NAGASHIMA, Jun'ichi OZAKI, Masateru SONEHARA, Yuichi TAKASE, Akira EJIRI, Kotaro YAMADA, Hidetoshi KAKUDA, Shigeru INAGAKI, Takuya OOSAKO, Byung Il AN, Hiroyuki HAYASHI, Kentaro HANASHIMA, Junichi HIRATSUKA, Hiroaki KOBAYASHI, Hiroki KURASHINA, Hazuki MATSUZAWA, Takuya SAKAMOTO, Takashi YAMAGUCHI, Osamu WATANABE and Takuma WAKATSUKI, Plasma Fusion Res. 5, S2049 (2010).