Plasma and Fusion Research

Volume 11, 2402051 (2016)

Regular Articles

Direct Observation of Electron Heating by Electron Landau Damping of Alfvén Ion Cyclotron Waves Using Thomson Scattering System in the Tandem Mirror GAMMA 10/PDX
Masayuki YOSHIKAWA, Ryuya IKEZOE, Koichi OHTA, Xiaolong WANG, Junko KOHAGURA, Yoriko SHIMA, Masayuki CHIKATSU, Kazuya ICHIMURA, Mizuki SAKAMOTO, Makoto ICHIMURA, Tsuyoshi IMAI, Ryutaro MINAMI, Kohei TSUMURA and Yousuke NAKASHIMA
Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
(Received 16 November 2015 / Accepted 9 March 2016 / Published 17 May 2016)

Abstract

In the hot ion mode of the tandem mirror GAMMA 10/PDX experiments, increases in the flux and temperature of end-loss electrons were observed after the excitation of Alfvén ion cyclotron (AIC) modes. The increase of the electron temperature in the central cell is directly observed using a Thomson scattering system, confirming electron heating due to the electron Landau damping of AIC modes.

Keywords

GAMMA 10/PDX, Thomson scattering, electron temperature, Alfvén ion cyclotron wave

DOI: 10.1585/pfr.11.2402051

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