Speaker
Mr
Satoshi Yamamoto
(Japan)
Description
We discuss the features of energetic-ion-driven MHD instabilities such as Alfvén eigenmodes (AEs) in three-dimensional magnetic configuration with low magnetic shear and low toroidal field period number (Np) that are characteristic of advanced helical plasmas. Comparison of experimental and numerical studies in Heliotron J with those in TJ-II indicates that the most unstable AE is global AE (GAE) in the low rotational transform (iota) configuration and helicity-induced AE (HAE) in the high iota configuration.
Country or International Organization of Primary Author
Japan
Primary author
Mr
Satoshi Yamamoto
(Japan)
Co-authors
Dr
Boyd Blackwell
(Plasma Research Laboratory, The Australian National University)
Dr
David Pretty
(Plasma Research Laboratory, The Australian National University)
Dr
Donald Spong
(Oak Ridge National Laboratory)
Dr
Enrique Ascasíbar
(National Laboratory for Magnetic Fusion, CIEMAT)
Dr
Fumimichi Sano
(Institute of Advanced Energy, Kyoto University)
Dr
Hiroyuki Okada
(Institute of Advanced Energy, Kyoto University)
Dr
Jiménez-Goméz Ruben
(National Laboratory for Magnetic Fusion, CIEMAT)
Dr
Kazunobu Nagasaki
(Institute of Advanced Energy, Kyoto University)
Mr
Keisuke Yasuda
(Graduate School of Energy Science, Kyoto University)
Dr
Kenichi Nagaoka
(National Institute for Fusion Science)
Dr
Kiyoshi Hanatani
(Institute of Advanced Energy, Kyoto University)
Dr
Shigeru Konoshima
(Institute of Advanced Energy, Kyoto University)
Dr
Shinji Kobayashi
(Institute of Advanced Energy, Kyoto University)
Dr
Shinsuke Ohshima
(Institute of Advanced Energy, Kyoto University)
Dr
Takashi Minami
(Institute of Advanced Energy, Kyoto University)
Dr
Teresa Estrada
(National Laboratory for Magnetic Fusion, CIEMAT)
Dr
Tohru Mizuuchi
(Institute of Advanced Energy, Kyoto University)
Dr
Yuji Nakamura
(Graduate School of Energy Science, Kyoto University)
