Open AccessA high‐performance wide‐range beamline for elliptically polarized undulator source
Author(s) -
Chung S.C.,
Song Y.F.,
Tseng P.C.,
Chen C.C.,
Chen C. T.,
Tsang K.L.
Publication year - 1998
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049597015409
Subject(s) - beamline , undulator , elliptical polarization , optics , physics , degree of polarization , polarization (electrochemistry) , circular polarization , photon , linear polarization , laser , scattering , chemistry , beam (structure) , microstrip
A high‐performance wide‐range beamline has been designed for monochromatizing circularly polarized photons with energies from 10 to 1400 eV. A grazing SGM‐based beamline with two entrance slits has been employed to optimize the performance. The degree of the circular polarization affected by the beamline optics has been analysed. The horizontal and vertical refocusing mirrors have been specially arranged to improve greatly the polarization degree in the low‐energy region. By connecting this beamline to a high‐efficiency elliptically polarized undulator, this beamline should be able to provide, in the entire energy range, intensive and high‐resolution photons of a high degree of circular polarization.