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Figure 3
Step-by-step movement of the HU44 undulator gap using the undulator proxy as actuator. We can see that the movement has the expected ideal slope of 1. The inset shows the movement of the undulator when measured with the CPCI with a time step of 10−4 s. The steps reflect the closed-loop movement of the undulator gap.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 19| Part 4| June 2012| Pages 619-626
doi:10.1107/S090904951201374X
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