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Figure 8
Single-shot pulse energy correlation for the SASE3 beam at the XTD10 and SCS XGM. Correlation of single-shot intra-pulse-train numbers 1, 5 and 10 are shown. The correlation coefficient for the intra-pulse number 1 is 0.98 and the scatter points stay within ±7% (lower absolute measurement uncertainty). The standard deviation of the SASE fluctuation for this run is measured consistently with both XGMs to be around 11%. The slopes are 0.02 indicating an overall beamline and gas attenuator transmission to the SCS hutch of 2% for these settings. Data sources are the single-shot XGMDh electron signals calibrated to the average ion signal, date 11 November 2018, wavelength 1.127 nm, 120 pulses per train, XTD10 XGM with Kr and SCS XGM with Xe gas target, gas attenuator was set to 5.5% transmission. The absolute measurement uncertainty σ for both XGMs was 7–10%

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 4| July 2019| Pages 1045-1051
https://doi.org/10.1107/S1600577519003795
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