A high-power Ka-band free electron maser, defined by a 2D – 1D Bragg lasing cavity

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


One of the on-going research programs, at the University of Strathclyde, involves the development of high-power, pulsed, Free-Electron Masers (FEMs) with the lasing cavity defined using periodic corrugations on the drift-tube walls 1-4 . These corrugations form 1D and 2D Bragg resonators, whose reflection bands determine the dominant resonance of the maser 5 . Proper selection of the FEM undulator magnetic field strength, allows for efficient extraction of energy from a mildly relativistic (400 - 500 keV) electron beam at the resonant frequency of the lasing cavity, leading to monochromatic output at power levels of several tens of megawatts and pulse durations of ~150ns (determined primarily by the pulse duration of the driving power supply of ~250ns).
Original languageEnglish
Title of host publication2012 Abstracts IEEE International Conference on Plasma Science
Number of pages1
ISBN (Print)9781457721274
Publication statusPublished - 24 Dec 2012
EventIEEE International Conference on Plasma Science - 2012 - Edinburgh, United Kingdom
Duration: 8 Jul 201213 Jul 2012


ConferenceIEEE International Conference on Plasma Science - 2012
CountryUnited Kingdom


  • masers
  • lasers
  • physics
  • cavity resonators
  • educational institutions
  • finite element methods
  • electron beams
  • free electron lasers

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