Effects of Electron Temperature Fluctuation on Turbulence Measurement by Langmuir Probe in a Magnetized Helicon Plasma

被引：2
作者：
Kawachi, Yuichi [1 ]
Inagaki, Shigeru [2 ,3 ]
Sasaki, Makoto [2 ,4 ]
Kosuga, Yusuke [2 ,3 ]
Yamada, Takuma [5 ]
Nagashima, Yoshihiko [2 ,3 ]
Moon, Chanho [3 ]
Kasuya, Naohiro [2 ,3 ]
Fujisawa, Akihide [2 ,3 ]
机构：
[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan
[2] Kyushu Univ, Res Ctr Plasma Turbulence, Kasuga, Fukuoka 8168580, Japan
[3] Kyushu Univ, Res Inst Appl Mech, Kasuga, Fukuoka 8168580, Japan
[4] Nihon Univ, Coll Ind Technol, Narashino, Chiba 2758575, Japan
[5] Kyushu Univ, Fac Arts & Sci, Fukuoka 8190395, Japan
来源：
PLASMA AND FUSION RESEARCH | 2021年 / 16卷
关键词：
turbulence; transport; Langmuir probe;
D O I：
10.1585/pfr.16.1202081
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Effects of electron temperature fluctuation on measurement of other fluctuations by using of Langmuir probe is investigated in PANTA plasma with finite temperature gradient, where significant electron temperature fluctuations are observed. The temperature fluctuation and its effects are evaluated from spatiotemporal structures of ion saturation current and floating potential, derived by conditional sampling/averaging technique. It is found that electron density fluctuation is in phase with ion saturation current fluctuation, but plasma potential fluctuation is anti-phase with the floating potential fluctuation. (C) 2021 The Japan Society of Plasma Science and Nuclear Fusion Research
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页数：3
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