TITLE: ANGULAR DISTRIBUTIONS IN COMPTON SCATTERING WITH ONE AND TWO EJECTED ELECTRONS AUTHORS: M. A. Kornberg AFFILIATIONS: Max-Planck-Institut fuer Quantenoptik, Hans-Kopfermann-strasse 1, D-85748 Garching, Germany SUMMARY: Angular distributions of the scattered photon in two-electron ionization of helium by Compton scattering are studied. We show that backward scattering is adequately described using an uncorrelated final-state approximation, as compared with impulse approximation (IA) results. Distributions for one- and two-electron ejection are proportional within IA at high-photon energies.