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Figure 6
Day-to-day fluctuations of the refocused beam profile at 7.6 keV. (a), (b) and (c) were obtained at different times during the multi-day beam time performing a similar electron energy scan on different days. The minimum spot size as well as the optimally focused photon energy vary from day to day. The spot size dependence on photon energy also changes and the relative size of the horizontal and vertical profiles is not maintained. Differences in tuning and alignment on any given day are likely at the source of these fluctuations.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 3| May 2015| Pages 634-643
https://doi.org/10.1107/S1600577515004002
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