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![[Figure 4]](ing5024fig4mag.jpg)
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Figure 4
Subshell-specific calculations of the minimum number of incident photons  per pixel for a fixed incident photon energy of Einc = 10 keV with and without the incorporation of cascade effects. Cascading due to K shell photoionization ceased when the K edge energy (labeled `K cutoff') exceeded Einc, which occurs for Z ≥ 31 when Einc = 10 keV. Double vacancies caused by electrons emitted during L-shell super Coster–Kronig transitions were omitted; thus, there were no cascade effects at all past the `K cutoff' shown. Shown here are the results when cascade effects (both radiative and nonradiative) are both considered (E-D PCS + CK + C) and ignored (E-D PCS + CK). In both cases, we used energy-dependent partial cross sections (E-D PCS) and included Coster-Kronig transitions (CK). We assumed a windowless EDS detector and a vacuum environment for these calculations so as to not affect at lower L fluorescence emission energies. Tabulated data from xraylib (Schoonjans et al., 2011 ). |
![[Figure 4]](ing5024fig4.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
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