Measurement of Ion Temperature during the Intermittent Negative Spike in Floating Potential

YAMADA, Yuto; OKAMOTO, Atsushi; FUJITA, Takaaki; KAWACHI, Yuichi; SUGIMOTO, Minami; SATO, Koki; KOIKE, Muneo; TAKEDA, Kota; TORII, Kazuhiro; YOSHIMURA, Shinji

oai:nifs-repository.repo.nii.ac.jp:02001685

Measurement of Ion Temperature during the Intermittent Negative Spike in Floating Potential

Authors: Yuto YAMADA
Atsushi OKAMOTO
Takaaki FUJITA
Yuichi KAWACHI
Minami SUGIMOTO
Koki SATO
Muneo KOIKE
Kota TAKEDA
Kazuhiro TORII
Shinji YOSHIMURA
Publication date: 13 May 2025
Publisher: The Japan Society of Plasma Science and Nuclear Fusion Research
Doi

Abstract

The ion temperature in an ECR plasma is determined from the ratio of wavelength-integrated spectra obtained using a spectrometer with sufficient time resolution. The ion temperature during the intermittent negative spikes in floating potential is extracted using the conditional averaging method. For the first time, we have successfully observed a decrease in ion temperature during intermittent events.journal articl

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Last time updated on 12/06/2025

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