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Figure 8
Gratings with various line density operated so that the resolving power of a 20 µm patch of the detector is approximately constant at Rdet ≃ 32000. θ is half the included angle. A gold-coated grating would have 5000 lines mm−1. Multilayer gratings would operate at smaller values of α and θ and would need (effectively) higher line density.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 21| Part 4| June 2014| Pages 736-743
doi:10.1107/S1600577514009692
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