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Figure 4
The quantum efficiency QE of the detector, measured over the full energy range of the beamline with recommended settings (a) and for different threshold levels at the low end of the energy range (b). The green triangular symbols in (a) denote measurements using the high gain mode, while all other data were measured using the ultra-high gain mode. The shaded areas around the data points indicate the relative uncertainty of the values (3% in ultra-high gain mode, 1% in high gain mode). The inset in (b) displays a close-up around the silicon K-edge. The ring current of the storage ring was reduced to 22 µA (6 µA) for photon energies above (below) 3.5 keV, respectively.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 21| Part 3| May 2014| Pages 529-536
https://doi.org/10.1107/S160057751400294X
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