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Figure 1
A compact design of the cascaded EEHG for the NSLS-II upgrade lattice has the stage-1 modulator in common for both beamlines. For the first cascaded EEHG beamline, named eehg1, modulator 2, chicane 2 and radiator 1 are positioned in the SS which is three BM sections downstream of the common modulator 1. An optical transport line built with four Mo/Si multilayer mirrors (PXRMS Multilayer Survey Results: https://henke.lbl.gov/cgi-bin/mldata.pl) transfers the CR pulse from radiator 1 to modulator 2 of the second cascaded EEHG beamline which is ten BM sections downstream of the common modulator 1; it is followed by chicane 2 and radiator 2 of the second beamline, named eehg2.

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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