Relative and absolute partial photoionization cross sections of the2sand2psubshells of neon

In an attempt to resolve the disagreement between previous theoretical calculations of the $2s$ partial photoionization cross section in neon, we have examined in detail the relative contribution from the initial-state configuration interaction and the final-state interchannel interaction. In addition, we have calculated the ratio of the $2s$ to $2p$ partial photoionization cross sections for photon energies ranging from the $2s$ ionization threshold to about 220 eV. The calculated value is compared with the recent experimental measurement.