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Figure 3
(a) Fringe field of the undulator obtained from simulations. The horizontal axis shows the distance along the beam axis. The schematic at the top of the figure depicts the relative position of the undulator magnet array and the poles of the phase shifter. (b) Dependence of the vertical field integral on the number of periods obtained by simulations. The undulator gap is 220 mm, and the horizontal linear mode is assumed in the simulation.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 1| January 2026| Pages 73-83
https://doi.org/10.1107/S1600577525010641
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