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Figure 3
The optimal geometry for the detector of the SXFEL online spectrometer is illustrated, where the desired focal length and orientation angle θ (red) of the detector plane with respect to the first-order beam at various energies are shown. The dashed line in each sub-plot is perpendicular to the propagation direction of the 0th-order beam, while the thin solid line represents the surface normal of the grating.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 5| September 2024| Pages 1373-1381
https://doi.org/10.1107/S1600577524005812
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