Development of 28/35 GHz dual-frequency gyrotron for ECH study

T. Kariya; T. Imai; R. Minami; K. Tsumura; Y. Ebashi; H. Idei; K. Hanada; M. Ono; K. Komurasaki; T. Numakura; Y. Endo; Y. Nakashima

doi:10.1063/1.4964176

Development of 28/35 GHz dual-frequency gyrotron for ECH study

T. Kariya, T. Imai, R. Minami, K. Tsumura, Y. Ebashi, H. Idei, K. Hanada, M. Ono, K. Komurasaki, T. Numakura, Y. Endo, Y. Nakashima

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

The high power and long pulse operation of the gyrotron as well as efficient transmission of its output are quite important for achieving improved plasma performances. A 28 GHz 1 MW gyrotron developed for GAMMA 10/PDX achieved an output power of 1.38 MW in 2015 experiment after the power supply was improved. Furthermore, a new 28/35 GHz dual-frequency gyrotron (2 MW 3 s and 0.4 MW CW) for QUEST, NSTX-U, Heliotron J and GAMMA 10/PDX has been fabricated, after the preliminary test of a double-disk sapphire window installed in the gyrotron was performed. In the first experimental test, the oscillation of the main mode was confirmed at a frequency of 28.036 GHz with a Gaussian-like beam and an output power of 1.22 MW.

Original language	English
Title of host publication	Open Magnetic Systems for Plasma Confinement, OS 2016
Subtitle of host publication	Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement
Editors	Aleksey Arakcheev, Anton Sudnikov
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735414297
DOIs	https://doi.org/10.1063/1.4964176
Publication status	Published - Oct 11 2016
Event	11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016 - Akademgorodok, Novosibirsk, Russian Federation Duration: Aug 8 2016 → Aug 12 2016

Publication series

Name	AIP Conference Proceedings
Volume	1771
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016
Country/Territory	Russian Federation
City	Akademgorodok, Novosibirsk
Period	8/8/16 → 8/12/16

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.4964176

Cite this

Kariya, T., Imai, T., Minami, R., Tsumura, K., Ebashi, Y., Idei, H., Hanada, K., Ono, M., Komurasaki, K., Numakura, T., Endo, Y., & Nakashima, Y. (2016). Development of 28/35 GHz dual-frequency gyrotron for ECH study. In A. Arakcheev, & A. Sudnikov (Eds.), Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement [030020] (AIP Conference Proceedings; Vol. 1771). American Institute of Physics Inc.. https://doi.org/10.1063/1.4964176

Development of 28/35 GHz dual-frequency gyrotron for ECH study. / Kariya, T.; Imai, T.; Minami, R. et al.
Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. ed. / Aleksey Arakcheev; Anton Sudnikov. American Institute of Physics Inc., 2016. 030020 (AIP Conference Proceedings; Vol. 1771).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kariya, T, Imai, T, Minami, R, Tsumura, K, Ebashi, Y, Idei, H , Hanada, K, Ono, M, Komurasaki, K, Numakura, T, Endo, Y & Nakashima, Y 2016, Development of 28/35 GHz dual-frequency gyrotron for ECH study. in A Arakcheev & A Sudnikov (eds), Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement., 030020, AIP Conference Proceedings, vol. 1771, American Institute of Physics Inc., 11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016, Akademgorodok, Novosibirsk, Russian Federation, 8/8/16. https://doi.org/10.1063/1.4964176

Kariya T, Imai T, Minami R, Tsumura K, Ebashi Y, Idei H et al. Development of 28/35 GHz dual-frequency gyrotron for ECH study. In Arakcheev A, Sudnikov A, editors, 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. 030020. (AIP Conference Proceedings). doi: 10.1063/1.4964176

Kariya, T. ; Imai, T. ; Minami, R. et al. / Development of 28/35 GHz dual-frequency gyrotron for ECH study. Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. editor / Aleksey Arakcheev ; Anton Sudnikov. American Institute of Physics Inc., 2016. (AIP Conference Proceedings).

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AU - Kariya, T.

AU - Imai, T.

AU - Minami, R.

AU - Tsumura, K.

AU - Ebashi, Y.

AU - Idei, H.

AU - Hanada, K.

AU - Ono, M.

AU - Komurasaki, K.

AU - Numakura, T.

AU - Endo, Y.

AU - Nakashima, Y.

PY - 2016/10/11

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N2 - The high power and long pulse operation of the gyrotron as well as efficient transmission of its output are quite important for achieving improved plasma performances. A 28 GHz 1 MW gyrotron developed for GAMMA 10/PDX achieved an output power of 1.38 MW in 2015 experiment after the power supply was improved. Furthermore, a new 28/35 GHz dual-frequency gyrotron (2 MW 3 s and 0.4 MW CW) for QUEST, NSTX-U, Heliotron J and GAMMA 10/PDX has been fabricated, after the preliminary test of a double-disk sapphire window installed in the gyrotron was performed. In the first experimental test, the oscillation of the main mode was confirmed at a frequency of 28.036 GHz with a Gaussian-like beam and an output power of 1.22 MW.

AB - The high power and long pulse operation of the gyrotron as well as efficient transmission of its output are quite important for achieving improved plasma performances. A 28 GHz 1 MW gyrotron developed for GAMMA 10/PDX achieved an output power of 1.38 MW in 2015 experiment after the power supply was improved. Furthermore, a new 28/35 GHz dual-frequency gyrotron (2 MW 3 s and 0.4 MW CW) for QUEST, NSTX-U, Heliotron J and GAMMA 10/PDX has been fabricated, after the preliminary test of a double-disk sapphire window installed in the gyrotron was performed. In the first experimental test, the oscillation of the main mode was confirmed at a frequency of 28.036 GHz with a Gaussian-like beam and an output power of 1.22 MW.

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Development of 28/35 GHz dual-frequency gyrotron for ECH study

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