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Figure 8
Shift of the center of mass of the final-focus position in the horizontal and vertical directions as a function of photon energy. The exit-slit location is adjusted to track the SGM focus and M5 is bent to maintain the smallest focus. However, the positional degrees of freedom of the M4 (vertical) and M5 (horizontal) focusing mirrors are fixed, which can be used to correct for the shift.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 27| Part 3| May 2020| Pages 836-843
https://doi.org/10.1107/S1600577520003689
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