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Figure 3
Flux measured simultaneously by the gas detector (GD) (squares) and the XGMD (circles) as a function of horizontal beam size, as defined by the horizontal slit gap. This measurement was performed at EX-ray = 6 keV. Solid and dotted lines are simulations of the transmission of a 2D Gaussian beam profile through a one-dimensional slit. The dashed line indicates the average value of the flux measured in the saturation region by the XGMD above ∼420 µm. The dashed area highlights the transmission loss from the HOMS related to its effective active length. The error bars originate from the inherent SASE intensity fluctuation of the beam.

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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