Long pulse operation of a dual frequency gyrotron for JT-60SA

T. Kobayashi, M. Sawahata, M. Terakado, S. Hiranai, K. Wada, Y. Sato, J. Hinata, K. Yokokura, K. Hoshino, K. Kajiwara, Y. Oda, K. Takahashi, R. Ikeda, S. Moriyama, K. Sakamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Long pulse operation of a dual frequency gyrotron for JT-60SA, which can oscillate both 110 GHz and 138 GHz waves, was started. Oscillations at ∼ 0.4 MW for 2 s (both frequencies) and 0.7 MW for 1 s (110 GHz) were obtained, so far. Temperature increase in the cavity, the output window and some components, which absorb stray radiation in the gyrotron, were measured and cavity loss power and the dielectric loss tangent of the output window were evaluated. Heat loads in the gyrotron measured so far were acceptable for long pulse operation at an output power of 1 MW.

Original languageEnglish
Title of host publication2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013 - Mainz, Germany
Duration: 2013 Sep 12013 Sep 6

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
Country/TerritoryGermany
CityMainz
Period13/9/113/9/6

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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