Actions for Enhancing FEL Power with Phase Shifters [electronic resource].

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Enhancing FEL Power with Phase Shifters [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Science, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
4 pages : digital, PDF file
Additional Creators
SLAC National Accelerator Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Tapering the undulator parameter is a well-known method for maintaining the resonant condition past saturation, and increasing Free Electron Laser (FEL) efficiency. In this paper, we demonstrate that shifting the electron bunch phase relative to the radiation is equivalent to tapering the undulator parameter. Using discrete phase changes derived from optimized undulator tapers for the Linac Coherent Light Source (LCLS) x-ray FEL, we show that appropriate phase shifts between undulator sections can reproduce the power enhancement of undulator tapers. Phase shifters are relatively easy to implement and operate, and could be used to aid or replace undulator tapers in optimizing FEL performance.
Report Numbers
E 1.99:slac-pub-14192
slac-pub-14192
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Note
Published through SciTech Connect.
07/30/2010.
"slac-pub-14192"
Contributed to 29th International Free Electron Laser Conference (FEL 07), Novosibirsk, Russia, 26-31 Aug 2007.
Huang, Zhirong; Chao, Alex; Ratner, Daniel.
Funding Information
AC02-76SF00515
View MARC record | catkey: 14678788