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Dependence of Output Power on Cavity Length in a Gyrotron Backward Wave Oscillator

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Abstract

A relativistic electron beam (500 keV, 200 A, 10 ns) generated magnetically tunable microwave radiation in a frequency range of 9-13 GHz when it is injected into an X-band rectangular waveguide immersed in a uniform axial magnetic field (4-10 kG). The mechanism of the microwave radiation was identified as the gyrotron backward wave interaction. The output power of the radiated microwave increased exponentially with the increase of the cavity length.

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Author notes

  1. Kouichi Nawashiro

    Present address: Nissin Electric Co. Ltd., Ukyou-Ku Kyoto, 615-0906, Japan

  2. Fumiyasu Tamagawa

    Present address: Toshiba Corporation, Ootawara Tochigi, 324-0036, Japan

Authors and Affiliations

  1. Department of Physics, Faculty of Science, Kanazawa University, Kanazawa, 920-1192, Japan

    Keiichi Kamada, Cha-Yeol Lee, Hiroshi Yoshida, Ritoku Ando & Masaru Masuzaki

  2. Department of Physics, Faculty of Science, Saitama University, Saitama, 338-8570, Japan

    Sunao Kawasaki

Authors
  1. Keiichi Kamada
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  2. Kouichi Nawashiro
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  3. Fumiyasu Tamagawa
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  4. Cha-Yeol Lee
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  5. Hiroshi Yoshida
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  6. Sunao Kawasaki
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  7. Ritoku Ando
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  8. Masaru Masuzaki
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Kamada, K., Nawashiro, K., Tamagawa, F. et al. Dependence of Output Power on Cavity Length in a Gyrotron Backward Wave Oscillator. International Journal of Infrared and Millimeter Waves 21, 1441–1449 (2000). https://doi.org/10.1023/A:1026457024180

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  • DOI: https://doi.org/10.1023/A:1026457024180

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