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Figure 1
Intrinsic (i.e. for zero angular divergence of incident radiation) reflectivity of a Si(111) double-crystal monochromator at 14.412 keV for σ- and π-polarized radiation. The peak reflectivity is nearly identical, and the polarization factor affects mainly the energy bandwidth, via the difference in the angular Darwin width. The throughputs for σ- and π-polarized radiation correspond to diffraction in the vertical and horizontal scattering plane, respectively, and their corresponding energy bandwidths are 1.966 eV and 1.892 eV or, in angular units, 18.3 µrad and 17.7 µrad.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 1| January 2021| Pages 91-103
https://doi.org/10.1107/S1600577520014009
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