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Figure 6
Effect of the third undulator field harmonic on the FEL power in the low-energy LCLS experiment with E = 4.3 GeV, I0 = 1 kA, σe = 3 × 10−4, ∊x,y = 0.4 mm mrad, β = 15 m, λu = 3 cm, k = 3.5. Modeled power for harmonics: n = 1 (red), n = 2 (orange), n = 3 (green), n = 5 (blue); d = −0.3 (dashed lines), d = +0.3 (dotted lines). The experimental saturated power range for harmonics is denoted by shadowed areas.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 5| September 2019| Pages 1481-1488
https://doi.org/10.1107/S1600577519008415
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