Development of a High Power Gyrotron Operating at 28 and 35 GHz

Development of a High Power Gyrotron Operating at 28 and 35 GHz

An experimental and design study has been commenced for a dual-frequency gyrotron (28 and 35 GHz). The target output power at 28 GHz is 2 MW. For a modified 28 GHz 1 MW gyrotron, an output power of 1.25 MW and operation of 0.6 MW for 2 s have been achieved at 28 GHz. For the 35.45 GHz oscillation te...

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Veröffentlicht in:Plasma and Fusion Research 2013/08/15, Vol.8, pp.1205107-1205107
Hauptverfasser: KARIYA, Tsuyoshi, MINAMI, Ryutaro, IMAI, Tsuyoshi, EGUCHI, Taku, SAKAMOTO, Keishi, MITSUNAKA, Yoshika, NUMAKURA, Tomoharu, ENDO, Yoichi
Format: Artikel
Sprache:eng
Schlagworte:
dual-frequency (28GHz and 35GHz) gyrotron
electron cyclotron heating
mode converter
oscillation test
radiation angle
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Beschreibung
Zusammenfassung:An experimental and design study has been commenced for a dual-frequency gyrotron (28 and 35 GHz). The target output power at 28 GHz is 2 MW. For a modified 28 GHz 1 MW gyrotron, an output power of 1.25 MW and operation of 0.6 MW for 2 s have been achieved at 28 GHz. For the 35.45 GHz oscillation test, a cavity oscillation power of 1.2 MW and an efficiency of 33.9% have been confirmed by considering the calculated transmission efficiency of 72%. These results support the development of dual-frequency gyrotrons for lower frequency ranges.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.8.1205107