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Figure 4
(a) rGD (red filled circles, left axis) and detector tilt angle φ (blue open squares, right axis) as a function of photon energy. The red dotted line marks the fixed rGD value. (b)–(g) Histograms produced by binning the images at the detector plane across the non-dispersive direction at (b) 250 eV, (c) 300 eV, (d) 400 eV, (e) 500 eV, (f) 600 eV, and (g) 700 eV. In each figure, the central ray photon energy and energy detuning are listed on the top. Red, black, and blue lines denote the results with nominal rGD, fixed rGD = 209.224 cm without and with tweaking the spectrometer mirror angle θ, respectively.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 27| Part 3| May 2020| Pages 695-707
https://doi.org/10.1107/S1600577520004440
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