Free-electron maser based on two-dimensional distributed feedback

A.D.R. Phelps, I.V. Konoplev, A.W. Cross, P. MacInnes, W. He, K. Ronald, C.G. Whyte, C.W. Robertson, IEEE

Research output: Contribution to conferencePaperpeer-review

Abstract

The study of a co-axial free-electron maser (FEM) based on 2D and ID distributed feedback and driven by a large diameter (70 mm), annular electron beam is presented. It has been demonstrated that 2D distributed feedback in the input mirror allowed 8 mm radiation emitted from different parts of the oversized electron beam to be synchronized. The FEM operating in the (35.9 GHz to 38.9 GHz.) frequency region generated 60 MW, 150 ns duration millimetre wave pulses which contained ~9 J of energy in the pulse. Good agreement between theoretical predictions and experimental data is demonstrated.
Original languageEnglish
Pages830-832
Number of pages2
Publication statusPublished - 12 May 2008
EventJoint 32nd International Conference on Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics - Cardiff, United Kingdom
Duration: 2 Sept 20079 Sept 2007

Conference

ConferenceJoint 32nd International Conference on Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics
CityCardiff, United Kingdom
Period2/09/079/09/07

Keywords

  • free electron masers
  • distributed Bragg reflector masers
  • distributed feedback oscillators
  • electron beams

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