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Figure 5
Vibration measurements performed with (a, b) knife-edge and focused beam at (a) 17.5 keV and (b) 18.5 keV, (c) at the falling edge of the rocking curve at 52.5 keV. The blue circles show the average flux versus angle of the second DCM crystal (bottom axes), the solid black lines show flux oscillations versus time (top axes). The dashed lines show the RMS deviation of these oscillations from equilibrium which are converted to the angular scale as shown by the arrows. The solid black lines with average value around 1 show the flux oscillation without knife-edge (a, b) and at the maximum of the rocking curve (c) which practically demonstrate the noise oscillations.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 5| September 2016| Pages 1097-1103
https://doi.org/10.1107/S1600577516011188
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