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17–22 Oct 2016
Kyoto International Conference Center
Japan timezone

Spatial Structure of Spontaneously Excited ICRF Waves and Relevant High-Energy Ion Loss in the GAMMA 10 Tandem Mirror

21 Oct 2016, 14:00
4h 45m
Kyoto International Conference Center

Kyoto International Conference Center

Takaragaike, Sakyo-ku, Kyoto 606-0001 Japan
Poster EXC - Magnetic Confinement Experiments: Confinement Poster 8

Speaker

Dr Ryuya Ikezoe (Plasma Research Center, University of Tsukuba)

Description

High-beta plasma confinement in a mirror field is subject to the influence of the temperature-anisotropy driven mode referred as Alfvén-ion-cyclotron (AIC) wave. The spatial structure of the AIC waves and the enhanced loss of high-energy ions owing to the AIC waves are simultaneously investigated in GAMMA 10 from a standpoint of wave-particle interaction. A clear correlation between the excitation of the AIC waves and the enhanced axial loss of high-energy ions is obtained and precise spatial structure of the AIC waves including those power and phase profiles, which is a key for the understanding of the temperature-anisotropy relaxation process, is clarified by using a reflectometer for the first time.
Country or International Organization Japan
Paper Number EX/P8-43

Primary author

Dr Ryuya Ikezoe (Plasma Research Center, University of Tsukuba)

Co-authors

Dr Junko Kohagura (Plasma Research Center, University of Tsukuba) Mr Junpei Itagaki (Plasma Research Center, University of Tsukuba) Dr Mafumi Hirata (Plasma Research Center, University of Tsukuba) Prof. Makoto Ichimura (Plasma Research Center, University of Tsukuba) Dr Masayuki Yoshikawa (University of Tsukuba) Prof. Mizuki Sakamoto (Plasma Research Center, JpUTsukuba) Mr Seowon Jang (Plasma Research Center, University of Tsukuba) Mr Shuhei Sumida (Plasma Research Center, University of Tsukuba) Mr Takuya Okada (Plasma Research Center, University of Tsukuba) Prof. Yousuke Nakashima (Plasma Research Center, University of Tsukuba)

Presentation materials