Radiophysics and Quantum Electronics

, Volume 47, Issue 7, pp 520–527

Influence of Aftercavity Interaction on Gyrotron Efficiency

  • V. E. Zapevalov
  • M. A. Moiseev


We consider theoretically the influence of interaction of a used electron beam with a concurrent wave in the output waveguide transition outside the cavity on the efficiency and energy recovery in a powerful millimeter-wave gyrotron. Without energy recovery, parasitic interaction in the transition reduces the efficiency and output power of a gyrotron by 5–10%. In a gyrotron with energy recovery, losses due to interaction in the transition can become most significant compared with other losses, and the efficiency is reduced by 20–30%. The influence of the transition decreases with decreasing transition length and increasing ratio of the maximum radius to the minimum radius of the transition.


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Copyright information

© Plenum Publishing Corporation 2004

Authors and Affiliations

  • V. E. Zapevalov
    • 1
  • M. A. Moiseev
    • 1
  1. 1.Institute of Applied Physics of the Russian Academy of SciencesNizhny NovgorodRussia

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