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Figure 11
Numerical convergence test of equation (27)[link]. I = ψ*ψ evaluated at [|x_{\perp}|] = r = 0, z = 1 m for E0 = 10 keV and f = 1 m. (a) Convergence when increasing the sampled frequency window. Evaluated with nsmpl = 512. (b) Difference when increasing ζ, e.g. [|I(\zeta = 8)-I(\zeta = 4)|]; note the good convergence for ζ > 16. (c) Convergence when increasing the number of sampling points. Evaluated with ζ = 32. (d) Difference when increasing nsmpl, e.g. |I(nsmpl = 64) − I(nsmpl = 32)|.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 1| January 2026| Pages 52-62
https://doi.org/10.1107/S1600577525008975
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