Development of internal ICRF wave detection using microwave reflectometry on GAMMA 10

R. Ikezoe, M. Ichimura, J. Itagaki, M. Hirata, S. Sumida, S. Jang, M. Yoshikawa, J. Kohagura, M. Sakamoto, Y. Nakashima

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

The microwave reflectometer system in the GAMMA 10 central cell has been recently upgraded using PIN diode switches and an axial array of transmitting and receiving horn antennas to investigate internal structures of ICRF waves. The system successfully worked to measure high-frequency density fluctuations accompanied by ICRF waves at multi axial locations in a single discharge. By using several discharges for radial scan with the axial antenna switching, radial and axial measurement of the density fluctuations was achieved. Obtained profiles of 6.36 MHz ICRF wave for ion heating show axial variation in those intensity, suggesting the effect of cyclotron damping. Furthermore, in accordance with the unexplained variation of diamagnetism before the main ramp-up, the intensity near the ICRF antenna is found to also vary in time. The developed system is useful to study the behavior of ICRF waves inside a hot plasma.

本文言語英語
ホスト出版物のタイトルOpen Magnetic Systems for Plasma Confinement, OS 2016
ホスト出版物のサブタイトルProceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement
編集者Aleksey Arakcheev, Anton Sudnikov
出版社American Institute of Physics Inc.
ISBN(電子版)9780735414297
DOI
出版ステータス出版済み - 10 11 2016
外部発表はい
イベント11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016 - Akademgorodok, Novosibirsk, ロシア連邦
継続期間: 8 8 20168 12 2016

出版物シリーズ

名前AIP Conference Proceedings
1771
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

その他

その他11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016
Countryロシア連邦
CityAkademgorodok, Novosibirsk
Period8/8/168/12/16

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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