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Figure 7
With the mirror holder configured for vertical focusing, over 12 h periods the radius of curvature drifted by ∼10% (upper plot) and ∼3% (lower plot) for maximum positive and negative voltages, respectively. Remounted in a horizontal geometry, with fewer mechanical constraints, the curvature drift was only 0.4%. This gives credence to the hypothesis that the large drifts were caused by non-optimal clamping of the substrate.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 1| January 2015| Pages 10-15
https://doi.org/10.1107/S1600577514020025
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