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Figure 9
Schematic view of magnetic measurement Bench A. A diode laser generates the red beam that, after splitting, stabilizes the transverse position of the Hall probe. While a linear motor moves the probe along the undulator, the laser signals out of the two pinholes attached to the probe are used to correct its position within ±20 µm.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 25| Part 3| May 2018| Pages 686-705
https://doi.org/10.1107/S1600577518002205
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