Experimental study of a FEM based on a 2D distributed feedback cavity

I.V Konoplev,A.W Cross,P Mcgrane,N.Yu Peskovb,A.S Sergeev,W He,N.S Ginzburg,C.G Whyte,K Ronald,C.W Robertson,D.C Speirs,A.D.R Phelps,M Thumm

doi:10.1109/icimw.2005.1572631

Experimental study of a FEM based on a 2D distributed feedback cavity

I.V Konoplev, A.W Cross + Show 11 more

https://doi.org/10.1109/icimw.2005.1572631

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Publication Date: Sep 19, 2005

Citations: 5

Affiliation: University of Strathclyde, Institute of Applied Physics, Research Center for Information Technology, Karlsruhe University of Applied Sciences

#Free-electron Maser #GHz Free-electron Maser + Show 8 more

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Abstract

We report operation of a co-axial free-electron maser (FEM) based on two-dimensional distributed feedback. The 37.3GHz FEM was driven by an annular electron beam (475kV, 500A, 250ns) and generated 15MW /spl plusmn/1.5MW of radiation with a 6% conversion efficiency. To investigate an increase in FEM output power and efficiency a new cavity configuration based on a copper 2D Bragg reflector is studied.

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