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Figure 2
For the NSLS-II upgrade lattice with harmonic 2000 and electron beam energy 3 GeV, regarding the first part of the cascaded EEHG, (a) total energy modulation ΔEtot, (b) prebunching bn and (c) required stage-1 seed laser power as a function of A1. The required stage-2 seed laser power, normalized energy modulation A2 and momentum compaction of chicane 2 stay nearly constant, 0.162 MW, 0.254 and −212 µm, respectively, despite the variation of A1. Similarly, for the second part of the cascaded EEHG, (d) total energy modulation ΔEtot, (e) prebunching bn and (f) required stage-1 seed laser power as a function of A1. The required stage-2 seed laser power, normalized energy modulation A2 and momentum compaction of chicane 2 stay nearly constant, 6.9 MW, 0.376, and −7.02 µm, respectively. (g) Prebunching bn as a function of the cascaded EEHG harmonic h for two different values of A1: 1.3 (blue) and 2.5 (red).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 5| September 2023| Pages 861-875
https://doi.org/10.1107/S1600577523006586
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