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Polarization Analysis for Seeded FELs in a Crossed-Planar Undulator

Conference · · Conf.Proc.C100523:TUPE068,2010
OSTI ID:1044624
The crossed-planar undulator is a promising scheme for full polarization control in x-ray FELs. For SASE FELs, it has been shown a maximum degree of circular polarization of about 80% is achievable at fundamental wavelength just before saturation. In this paper, we study the effectiveness of a crossed undulator for a seeded x-ray FEL. The degree of circular polarization for both the fundamental and the harmonic radiation are considered. Simulations with realistic beam distributions show that a degree of circular polarization of over 90% and 80% is obtainable at the fundamental and 2nd harmonic frequencies, respectively.
Research Organization:
SLAC National Accelerator Laboratory (SLAC)
Sponsoring Organization:
US DOE Office of Science (DOE SC)
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1044624
Report Number(s):
SLAC-PUB-15115
Conference Information:
Journal Name: Conf.Proc.C100523:TUPE068,2010
Country of Publication:
United States
Language:
English

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