Figure 2
The percentage discrepancy between the derived mass attenuation coefficient and the tabulated FFAST values (circles) (Chantler, 2000 ) over the energy range 8.5 keV to 11.59 keV, and the percentage discrepancies between XCOM tabulated values with Hartree–Slater calculations (crosses) (Berger & Hubbell, 1987 ), Scofield tabulated values renormalized with Hartree–Fock calculations (stars) (Scofield, 1973 ) and Rae et al. (2010 ) measurements (squares). The near-edge region has a large discrepancy from current measurements due to the solid-state XAFS structure and the triangle effect. Renormalized Scofield (1973 ) values deviate dramatically everywhere, implying that the earlier belief that correct theory lies between the unrenormalized and the renormalized predictions is not valid for these data. |