4 Papers
6 Citations
M. Iwase is an academic researcher from Japan Atomic Energy Research Institute. The author has contributed to research in topics: Neutral beam injection & Ion. The author has an hindex of 3, co-authored 4 publications.
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Papers
Recent RF activities on JT-60U
Y. Ikeda,T. Fujita,K. Hamamatus,S. Ide,T. Imai,A. Isayama,M. Iwase,A. Kasugai,Takashi Kondoh,Y. Kusama,S. Moriyama,O. Naito,M. Nemoto,T. Oikawa,K. Sakamoto,M. Seki,Shinichi Shinozaki,M. Simono,T. Takahashi,M. Terakado,K. Tobita,M. Tsuneoka,K. Ushigusa,T. Yamamoto,T. Fujii +24 more
- 20 Sep 1999
TL;DR: In this paper, the performance of ICRF on the reversed magnetic shear (R/S) configuration with internal transport barrier (ITB) was successfully maintained for 4.7 s in a quasisteady state by LHCD in addition to the bootstrap current, where all profiles of temperature and plasma current were almost stationary.
4
Effects of low particle fuelling and electron heating on the internal transport barrier in ICRF heated reversed magnetic shear plasmas of JT-60U
M. Iwase,Yoshihiko Koide,Kenji Tobita,S. Moriyama,Hidenobu Takenaga,Takaaki Fujita,Hiroshi Shirai,Y. Kusama,G. J. Kramer,Haruyuki Kimura +9 more
TL;DR: In this paper, a second-harmonic ion cyclotron range of frequency (ICRF) minority heating was used for the reversed magnetic shear (RS) experiments in JT-60U.
3
Fast particle experiments in JT-60U
G. J. Kramer,M. Iwase,Y. Kusama,A. Morioka,M. Nemoto,Takeo Nishitani,K. Shinohara,S. Takeji,Kenji Tobita,T. Ozeki,Chio-Zong Cheng,Guoyong Fu,Raffi Nazikian +12 more
TL;DR: In this paper, the results of fast particle experiments in JT-60U were presented, where the fast particles were created with ICRF heating and negative ion based neutral beam injection (N-NBI) heating.
Characteristics of Alfvén eigenmodes, burst modes and chirping modes in the Alfvén frequency range driven by negative ion based neutral beam injection in JT-60U
Y. Kusama,G. J. Kramer,Haruyuki Kimura,M. Saigusa,T. Ozeki,Kenji Tobita,T. Oikawa,Kouji Shinohara,Takashi Kondoh,M. Moriyama,F. V. Tchernychev,M. Nemoto,A. Morioka,M. Iwase,N. Isei,Takaaki Fujita,S. Takeji,Masaaki Kuriyama,Raffi Nazikian,Guoyong Fu,K. W. Hill,Chio-Zong Cheng +21 more
TL;DR: In this paper, the excitation and stabilization of Alfv?n eigenmodes and their impact on energetic ion confinement were investigated with negative ion based neutral beam injection at 330-360?keV into weak or reversed magnetic shear plasmas on JT-60U.