Systematic study of a corrugated waveguide as a microwave undulator

Microwave undulators have great potential to be used in short‐wavelength free‐electron lasers. In this paper, the properties of a corrugated waveguide and its performance as an undulator cavity for a UK X‐ray free‐electron laser were systematically studied. The equations presented in this paper allo...

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Bibliographic Details
Published in:Journal of synchrotron radiation 2019-01, Vol.26 (1), p.11-17
Main Authors: Zhang, Liang, He, Wenlong, Clarke, Jim, Ronald, Kevin, Phelps, Alan D. R., Cross, Adrian
Format: Article
Language:English
Subjects:
balanced hybrid condition
corrugated waveguide
Corrugated waveguides
free‐electron laser
microwave undulator
Research Papers
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Summary:Microwave undulators have great potential to be used in short‐wavelength free‐electron lasers. In this paper, the properties of a corrugated waveguide and its performance as an undulator cavity for a UK X‐ray free‐electron laser were systematically studied. The equations presented in this paper allow a fast estimation of the dimensions of the corrugated waveguide. An undulator cavity operating at 36 GHz designed for the HE11 and HE12 modes was investigated and the performance of both modes compared. A microwave undulator operating at 36 GHz has been designed for a UK X‐ray free‐electron laser. The equivalent magnetic field is 1.27 T when driven by 50 MW of input power.
ISSN:1600-5775
0909-0495
1600-5775
DOI:10.1107/S1600577518014297