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

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

研究成果: 著書/レポートタイプへの貢献会議での発言

2 引用 (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.

元の言語英語
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
出版者American Institute of Physics Inc.
ISBN(電子版)9780735414297
DOI
出版物ステータス出版済み - 10 11 2016
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(印刷物)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
ロシア連邦
Akademgorodok, Novosibirsk
期間8/8/168/12/16

Fingerprint

internal waves
microwaves
microwave reflectometers
antennas
horn antennas
diamagnetism
high temperature plasmas
ramps
cyclotrons
switches
damping
diodes
heating
profiles
cells
ions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Ikezoe, R., Ichimura, M., Itagaki, J., Hirata, M., Sumida, S., Jang, S., ... Nakashima, Y. (2016). Development of internal ICRF wave detection using microwave reflectometry on GAMMA 10. : A. Arakcheev, & A. Sudnikov (版), Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement [050002] (AIP Conference Proceedings; 巻数 1771). American Institute of Physics Inc.. https://doi.org/10.1063/1.4964196

Development of internal ICRF wave detection using microwave reflectometry on GAMMA 10. / Ikezoe, Ryuya; Ichimura, M.; Itagaki, J.; Hirata, M.; Sumida, S.; Jang, S.; Yoshikawa, M.; Kohagura, J.; Sakamoto, M.; Nakashima, Y.

Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. 版 / Aleksey Arakcheev; Anton Sudnikov. American Institute of Physics Inc., 2016. 050002 (AIP Conference Proceedings; 巻 1771).

研究成果: 著書/レポートタイプへの貢献会議での発言

Ikezoe, R, Ichimura, M, Itagaki, J, Hirata, M, Sumida, S, Jang, S, Yoshikawa, M, Kohagura, J, Sakamoto, M & Nakashima, Y 2016, Development of internal ICRF wave detection using microwave reflectometry on GAMMA 10. : A Arakcheev & A Sudnikov (版), Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement., 050002, AIP Conference Proceedings, 巻. 1771, American Institute of Physics Inc., 11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016, Akademgorodok, Novosibirsk, ロシア連邦, 8/8/16. https://doi.org/10.1063/1.4964196
Ikezoe R, Ichimura M, Itagaki J, Hirata M, Sumida S, Jang S その他. Development of internal ICRF wave detection using microwave reflectometry on GAMMA 10. : Arakcheev A, Sudnikov A, 編集者, Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. American Institute of Physics Inc. 2016. 050002. (AIP Conference Proceedings). https://doi.org/10.1063/1.4964196
Ikezoe, Ryuya ; Ichimura, M. ; Itagaki, J. ; Hirata, M. ; Sumida, S. ; Jang, S. ; Yoshikawa, M. ; Kohagura, J. ; Sakamoto, M. ; Nakashima, Y. / Development of internal ICRF wave detection using microwave reflectometry on GAMMA 10. Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. 編集者 / Aleksey Arakcheev ; Anton Sudnikov. American Institute of Physics Inc., 2016. (AIP Conference Proceedings).
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AU - Ikezoe, Ryuya

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AU - Hirata, M.

AU - Sumida, S.

AU - Jang, S.

AU - Yoshikawa, M.

AU - Kohagura, J.

AU - Sakamoto, M.

AU - Nakashima, Y.

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AB - 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.

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