Fluctuation Measurement in the Edge Plasma on TST-2

Fluctuation Measurement in the Edge Plasma on TST-2

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...

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Veröffentlicht in:Plasma and Fusion Research 2010/12/10, Vol.5, pp.S2049-S2049
Hauptverfasser: NAGASHIMA, Yoshihiko, OZAKI, Jun'ichi, SONEHARA, Masateru, TAKASE, Yuichi, EJIRI, Akira, YAMADA, Kotaro, KAKUDA, Hidetoshi, INAGAKI, Shigeru, OOSAKO, Takuya, AN, Byung Il, HAYASHI, Hiroyuki, HANASHIMA, Kentaro, HIRATSUKA, Junichi, KOBAYASHI, Hiroaki, KURASHINA, Hiroki, MATSUZAWA, Hazuki, SAKAMOTO, Takuya, YAMAGUCHI, Takashi, WATANABE, Osamu, WAKATSUKI, Takuma
Format: Artikel
Sprache:eng
Schlagworte:
conditional technique
edge plasma
plasma turbulence
temperature fluctuation
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Zusammenfassung: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.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.5.S2049