Refine your search�ソスF     
Report No.
 - 

Development of linear motion ECRF antenna for JT-60SA

Moriyama, Shinichi; Kobayashi, Takayuki; Isayama, Akihiko; Sawahata, Masayuki; Suzuki, Sadaaki; Terakado, Masayuki; Hiranai, Shinichi; Wada, Kenji; Sato, Yoshikatsu; Hinata, Jun; Yokokura, Kenji; Hoshino, Katsumichi; Sakamoto, Keishi

Development of an antenna featuring linear motion (LM) concept for electron cyclotron range of frequency (ECRF) heating and current drive in JT-60SA is in progress. It will handle the injection power of 1MW for 100s. Combination of a linearly movable first mirror and a fixed curved second mirror realizes control of the injection beam angle. A support structure of the shaft using a metallic sliding bearing with solid lubricant was designed and tested. It showed smooth movement in vacuum. Heating and current drive characteristics with the LM antenna for typical experimental scenarios of JT-60SA have been investigated by calculation. As a result, it was confirmed by ECCD calculation that the range of toroidal injection angle, from -15 deg to +15 deg is appropriate at 110 GHz. On the contrary, at 138GHz for experiment scenario at 2.3T of full toroidal field of JT-60SA, the angle in the positive direction of IP, may be larger, e.g., +20 deg, for higher ECCD efficiency.

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.