Short Rayleigh length free electron laser: Experiments and simulations
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Authors
Crooker, P.P.
Colson, W.B.
Blau, J.
Burggraff, D.
Aguilar, J. Sans
Benson, S.
Neil, G.
Shinn, M.
Evtushenko, P.
Subjects
Advisors
Date of Issue
2008
Date
Publisher
Language
Abstract
We report experiments at Jefferson National Accelerator Facility (Jlab) and computer simulations
performed at the Naval Postgraduate School (NPS) designed to probe the small Rayleigh length regime.
We compare the gain, power, and sensitivity to mirror and electron beam misalignments as a function of
decreasing Rayleigh length. The agreement is quite good, with experiments and simulations showing
comparable trends as the Rayleigh length is decreased. In particular, we find that the gain and power do
not decrease substantially at short Rayleigh length, contrary to a common Gaussian-mode filling factor
argument. Within currently achievable alignment tolerances, the gain and power are still acceptable for
FEL operation.
Type
Article
Description
The article of record as published may be located at http://dx.doi.org/10.1103/PhysRevSTAB.11.090701
Series/Report No
Department
Physics
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NPS Report Number
Sponsors
Funder
Support for this project was provided by the High Energy Laser Joint Technology Office and the Office of Naval Research.
Format
Citation
Physical Review Special Topics - Accelerators and Beams, Volume 11, 090701, 2008
Distribution Statement
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.