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. 2017 Apr 7;24(Pt 3):600–608. doi: 10.1107/S1600577517004726

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© M. Calvi et al. 2017

This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

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The values of and have been calculated as a function of the undulator (Apple X) gap. The numerical calculation (red markers) are presented together with the fitting functions (solid black line) introduced in equation (62).

Inline graphic — The values of and have been calculated as a function of the undulator (Apple X) gap. The numerical calculation (red markers) are presented together with the fitting functions (solid black line) introduced in equation (62).