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Figure 4
Graphs of parameters a and f in equation (5[link]) (shown as red and blue squares, respectively) versus the beam electron energy, E0, after fitting equation (5[link]) to fj′B&K(Zj, 0.05 Å2 ≤ Bj ≤ 2.0 Å2, E0, 0 Å−1 ≤ s ≤ 6 Å−1) for Al (Z = 13), Cu (Z = 29), Ag (Z = 47), Nd (Z = 60), Au (Z = 79) and U (Z = 92). The fitted functions for a versus E0 and f versus E0 (red and blue lines, respectively) all have the same form (given explicitly below the plots), independent of the element and independent of the parameter a or f. The only difference is in the relative magnitudes of the functions, so these are assigned new parameters m and n for the functions describing a and f, respectively. The functions for a and f versus E0 fit the plotted points perfectly without any mismatch at all.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 58| Part 5| October 2025| Pages 1665-1676
https://doi.org/10.1107/S160057672500545X
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