Binding and correlation effects in nitrogen and oxygen, and the correlation effects in neon, as studied by gas-phase x-ray diffraction

Total (coherent and incoherent) x-ray scattering intensities of nitrogen, oxygen, and neon have been measured by the use of the energy-dispersive method with an accuracy of about 0.5%. A sealed-off tube with a tungsten target was used as the source of white x rays. Comparison of the measured intensities with the Hartree–Fock independent-atom calculations revealed the binding and correlation effects. Further comparison with advanced theoretical calculations in literature has been made and the experimental values have been found to be consistent with the theoretical predictions at the CI level.