TY - JOUR
T1 - Effects of Electron Temperature Fluctuation on Turbulence Measurement by Langmuir Probe in a Magnetized Helicon Plasma
AU - Kawachi, Yuichi
AU - Inagaki, Shigeru
AU - Sasaki, Makoto
AU - Kosuga, Yusuke
AU - Yamada, Takuma
AU - Nagashima, Yoshihiko
AU - Moon, Chanho
AU - Kasuya, Naohiro
AU - Fujisawa, Akihide
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers JP20J12625, JP17H06089, JP17K06994, the collaboration programs of RIAM Kyushu University and of the National Institute for Fusion Science (NIFS17KOCH002, NIFS18KNWP007), and JSPS Core-to-Core Program (‘PLADyS’).
Publisher Copyright:
© 2021. The Japan Society of Plasma Science and Nuclear Fusion Research.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85109162161&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85109162161&partnerID=8YFLogxK
U2 - 10.1585/PFR.16.1202081
DO - 10.1585/PFR.16.1202081
M3 - Article
AN - SCOPUS:85109162161
VL - 16
SP - 1202081-1-1202081-3
JO - Plasma and Fusion Research
JF - Plasma and Fusion Research
SN - 1880-6821
ER -