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Free-electron maser based on a cavity with two- and one-dimensional distributed feedback

Konoplev, I.V. and Cross, A.W. and MacInnes, P. and He, W. and Phelps, A.D.R. and Whyte, C.G. and Ronald, K. and Robertson, C.W. (2008) Free-electron maser based on a cavity with two- and one-dimensional distributed feedback. Applied Physics Letters, 92 (21). ISSN 0003-6951

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Abstract

The study of a coaxial free-electron maser (FEM) based on two-dimensional (2D) and one-dimensional (1D) distributed feedback, driven by a 70 mm diameter, annular electron beam is presented. A new cavity formed with 2D and 1D periodic lattices, positioned at the input and output of the interaction region, respectively, was used. It has been demonstrated that 2D distributed feedback in the input mirror allowed 8 mm radiation emitted from different parts of the electron beam to be synchronized. The FEM operating in the 35.9-38.9 GHz frequency region generated 65 MW, 150 ns duration millimetre wave pulses which contained ∼ 10 J of energy in the pulse.

Item type:Article
ID code:17071
Keywords:free-electron maser, cavity, two- and one-dimensional distributed feedback, Physics, Physics and Astronomy (miscellaneous)
Subjects:Science > Physics
Department:Faculty of Science > Physics
Depositing user: Strathprints Administrator
Date deposited:22 Apr 2010 11:36
Last modified:30 Jan 2019 08:46
URI:https://strathprints.strath.ac.uk/id/eprint/17071
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