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Figure 4
The dynamic radius of curvature of a bimorph deformable mirror as a function of time after applying a 1000 V change to all piezos, followed by damped voltage oscillations. Over each 10 s interval, the Fizeau interferometer recorded the mirror's radius of curvature with sufficient sensitivity to resolve all dynamic features fully, including damped voltage oscillations deliberately applied by the high-voltage power supply.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 1| January 2019| Pages 36-44
https://doi.org/10.1107/S1600577518015953
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