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Figure 9
(a) An image of a focal beam spot on a scaled YAG:Ce crystal with an exit slit width of 100 µm × 100 µm. The red quadrilateral unit represents a 200 µm2 square on the YAG:Ce crystal. The red and yellow arrows point to the focal beam spot on the front and back surfaces of the crystal, respectively. (b) The dependence of the vertical beam spot size on the monochromator exit slit width measured at photon energies of 25 eV (diamonds) and 100 eV (dots). An `ideal' dependence (exit slit width divided by a demagnification coefficient) is shown by the dashed line.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 5| September 2021| Pages 1620-1630
https://doi.org/10.1107/S1600577521006032
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