Other
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2010..168b&link_type=abstract
Proc. SPIE Vol. 2010, p. 168-173, X-Ray and Ultraviolet Polarimetry, Silvano Fineschi; Ed.
Other
1
Scientific paper
The crossed field undulator independently proposed by Moiseev et al. and K. J. Kim generates short wavelength (photon energy above 35 eV) circularly polarized radiation. It is based on the coherent superposition of two mutually orthogonally polarized wavetrains generated in two `ordinary' undulators arranged one after the other along with electron beam axis. The superposition is achieved in a monochromator of sufficient spectral resolution. The relative phase is determined by the so called modulator located in between the two undulators. It is a three pole magnetic structure returning the electrons to the axis with a time delay with respect to the straight path of the order of an optical period.
Bahrdt Johannes
Gaupp Andreas
Peatman William B.
Schaefers Franz
Wang Ch.
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