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Figure 1
Oscilloscope traces of the X-ray signal (1 mm APD) at the UE56/1 ZPM beamline as a function of time at 850 eV (in 2 eV bandwidth) for three different slicing setups: with (a) 1 kHz, (b) 3 kHz and (c) 6 kHz repetition rate of the laser system. A stationary halo pattern evolves at higher laser frequency and the ratio between the femtosecond signal (red bar) and the halo intensity beneath (blue bar) decreases rapidly approaching a 1:1 ratio at ∼6 kHz. Operation in the so-called sequence mode is nearly equivalent to the 1 kHz situation (a) with each femtoslicing event occurring every 0.5 ms.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 3| May 2016| Pages 700-711
doi:10.1107/S160057751600401X
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