ANGLE-RESOLVED ENERGY CORRELATED COINCIDENCE ELECTRON-SPECTROSCOPY OFSOLID-SURFACES

We report on the first measurements of the angle resolved energy distr ibution of correlated electrons created in single scattering events by low energy (E(p) = 14-25 eV) electrons. We combined coincidence and t ime-of-flight techniques to measure simultaneously energies and moment a of both scattered electrons of the correlated pair. The measurements were performed in the backscattering geometry on a single crystal W(1 00) and a thin film of LiF. We found that the most probable energy dis tribution of electron pairs corresponds to a constant sum of energies of both electrons.