NE VALENCE CORRELATION SATELLITES IN THE PHOTON ENERGY REGION 80-220 EV

Photoelectron spectroscopy using monochromatized synchrotron radiation has been made to study the 2s(2)2p4nl correlation satellites of the N e atom in the range of photoelectron kinetic energy E(K) from 30 eV to 160 eV (hv = 80 approximately 220 eV). For five main satellites inclu ding 2p4(3P)np 2P (n = 3, 4) and 2P4(1D)3s 2D states, the (satellite)/ (2p-mainline) intensity ratio has been determined as a function of E(K ). From a combination of these relative intensities with the reported 2p cross section, partial cross sections for the satellite excitation have also been obtained. The intensity ratios for the satellites are n ot constant over the photon energy region studied, indicating that the dynamic electron correlation cannot be neglected.