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Figure 2
Average absolute number of photons per shot as a function of X-ray photon energy EX-ray which is normalized by the FEE GD. The X-ray photon energy dependence of the number of photons, [\langle N_{\rm{p}}\rangle_{{\rm{XPP}}}], is provided by circles at the XPP sample location under typical experimental conditions. The same quantity circles 〈Np〉HOMS is extrapolated to the location downstream of the HOMS and is indicated by squares. This is achieved by correcting [\langle N_{\rm{p}}\rangle_{{\rm{XPP}}}] by the transmission of all components located between directly downstream of the HOMS and the XPP sample location. Details are provided in Appendix A[link]. The dashed line displays the photon energy dependence of the number of photons for a 1 mJ X-ray beam. Error bars of circles are contained within the symbol size. The gray area surrounding the squares indicates a total 10% error margin in transmission correction as a result of the uncertainty of the instrument optics (thickness of one diamond and one kapton window) and calibration error of the FEE GD (Moeller et al., 2011BB17).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 2| March 2019| Pages 320-327
https://doi.org/10.1107/S1600577519000250
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