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Figure 8
Divergences for the ID06 U18 undulator, set close to the first harmonic resonance. (a) 2D plot for photon energy red-shifted E = E0[1 − (Nn)−1] = 9910 eV, (b) 2D plot at resonance E = E0 = 10000 eV, (c) 2D plot at blue-shifted E = E0[1 + 0.4(Nn)−1] = 10036 eV, all calculated with the `internal' algorithm. On the right, we compare the histograms of the vertical divergences given by the three calculation modes SHADOW4 internal algorithm, pySRU + WOFRY, and SRW for the three photon energies: (d) red-shifted from resonance, (e) at resonance, and (f) blue-shifted from resonance.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 32| Part 2| March 2025| Pages 340-354
https://doi.org/10.1107/S1600577525000190
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