The simulation of an high power 390GHz large-orbit harmonic gyrotron

Fengping Li, Wenlong He, Alan Phelps, Adrian Cross, Craig Donaldson, Kevin Ronald, Colin Whyte

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

1 Citation (Scopus)


This paper presents the design and simulation of a 390 GHz harmonic gyrotron operating with a TE 71 mode at the 7 th electron cyclotron harmonic of a large orbit electron beam from a cusp electron gun. The electron beam has an energy of 40 keV, beam current of 1.5 A, an adjustable pitch alpha from 1 to 2 with a minimum beam velocity spread and scalloping in the beam trajectory. Interaction region based on cylindrical waveguide with smooth inner surface and slotted structures have been studied. Theoretical analysis and numerical simulation results of this source operating at THz frequencies are presented.
Original languageEnglish
Title of host publication2008 IEEE International Vacuum Electronics Conference
Number of pages2
ISBN (Print)9781424417155
Publication statusPublished - 2 Jul 2008
EventIEEE International Vacuum Electronics Conference, 2008 - Monterey, CA
Duration: 22 Apr 200824 Apr 2008


ConferenceIEEE International Vacuum Electronics Conference, 2008
CityMonterey, CA


  • THz
  • harmonic gyrotron
  • cusp electron gun
  • large-orbit electron beam
  • high power microwave


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