Figure 3
Contributions of the off-axis angle γθ = 0.1 (a) and of the non-periodic field Hd (b) to the spectral line of the second UR harmonic of the LCLS undulator, λu = 3 cm, k = 3.5, N = 113, σe = 0.0003, γ = 8400 for the detuning parameter νn and the field strength Hd. |