Polarization analysis for seeded FELs in a crossed-planar undulator

ePubs

The open archive for STFC research publications

Persistent URL	http://purl.org/net/epubs/work/53298
Record Status	Checked
Record Id	53298
Title	Polarization analysis for seeded FELs in a crossed-planar undulator
Contributors	H Geng (National Synchrotron Radiation Source & SLAC, Menlo Park, California) (Pr.Au.), R Bartolini (Diamond Light Source), Y Ding (SLAC), D Dunning (STFC Daresbury Lab.), Z Huang (SLAC), N Thompson (STFC Daresbury Lab.)
Abstract	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 over 90% and 80% is obtainable at the fundamental and 2nd harmonic frequencies, respectively.
Organisation	ASTeC , ASTeC-MaRS , CI , STFC
Keywords	ASTeC 2010-2011 , Polarization , Physics , FEL , Diamond Light Source , Crossed-Planar , NLS
Funding Information
Related Research Object(s):
Licence Information:
Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Paper In Conference Proceedings	In 1st International Particle Accelerator Conference (IPAC 10), Kyoto, Japan, 24-28 May 2010, (2010).	http://accelconf.…0/papers/tupe068.pdf	tupe068.pdf	2010