• T. Idehara
  • H. Tsuchiya
  • O. Watanabe
  • La Agusu
  • S. Mitsudo


A THz gyrotron with a pulse magnet has been designed, constructed and operated in FIR FU. It is developed as one of high frequency gyrotrons included in Gyrotron FU Series. The gyrotron has already achieved the first experimental result for high frequency operations whose radiation frequency exceeds 1 THz. In this paper, the design detail and the operation test results for sub-terahertz to terahertz range are described. The second harmonic operation is confirmed experimentally at the expected frequency of 1.005 THz due to TE6,11 cavity mode at the magnetic field intensity of 19.0 T.

Key words

Gyrotron Pulse magnet Terahertz radiation Gyrotron FU Series Second harmonic operation 


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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • T. Idehara
    • 1
  • H. Tsuchiya
    • 1
  • O. Watanabe
    • 1
  • La Agusu
    • 1
  • S. Mitsudo
    • 1
    • 2
  1. 1.Research Center for Development of Far Infrared RegionUniversity of Fukui (FIR FU)Fukui-shiJapan
  2. 2.Cryogenic Laboratory, Faculty of EngineeringUniversity of FukuiFukui-shiJapan

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