Circular Free-Electron Laser Using Velvet-Covered Cathode

• Sekita Hitoshi

  Institute of Space and Astronautical Science

• Mizuno Takahide

  Institute of Space and Astronautical Science

• Ohta Hiroshi

  Institute of Space and Astronautical Science

• Kitora Masakazu

  Institute of Space and Astronautical Science

• Naito Yoshihiko

  Institute of Space and Astronautical Science

• Saito Hirobumi

  Institute of Space and Astronautical Science

抄録

Generation of microwave radiation from a rotating electron beam in a circular wiggler magnetic field (circular free-electron laser) has been studied. The electron beam is emitted by a velvet-covered cathode; its energy is typically 300–500 keV and its beam current is 160 A. Measured frequency, power and pulse width of the radiated microwave are 12.7 GHz, 11 kW and 500 ns, respectively. Measured frequency agrees with the theoretical prediction. The interaction between the beam mode and the traveling magnetic waveguide mode is discussed based upon the dispersion relation.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 31 (11), 3569-3574, 1992

  社団法人応用物理学会

キーワード

• free-electron laser
• circular wiggler
• velvet cathode
• beam quality
• emittance
• brightness
• electron beam
• dispersion relation
• microwave

詳細情報

• CRID: 1571417127340235904
• NII論文ID: 110003901157
• NII書誌ID: AA10457675
• 本文言語コード: en
• データソース種別:
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