Where this data came from: The scattering factor data files indexed through the table above were calculated using the subroutine library by Brennan and Cowan (see references). The values for f' and f" are derived using the theoretical approximation developed by Cromer and Liberman. This theory gives accurate values far from an absorption edge but does not account for the effects of neighboring atoms, which can be very substantial near an absorption edge. Before conducting an anomalous scattering experiment close to an absorption edge it is therefore advisable to determine the actual scattering behaviour of your sample (see theory v. experiment). Other periodic table interfaces to elemental properties:
X-ray properties from W.H.McMaster's compilation of cross-sections The Pictorial Periodic Table NMR periodic table WebElements home page UBC (text-only interface) YOGI (work in progress) PeriodiCity X-ray Anomalous Scattering Ethan A Merritt ©1996-2010/ merritt@u.washington.edu / Biomolecular Structure Center at UW