Angular correlations in double ionization of Helium by high-energy Compton scattering

We present theoretical results for double differential cross section d 2 σ / d Ω 1 d Ω 2 in the process of double ionization of Helium by high-energy Compton scattering. We discuss the energy and angular dependence of the cross section, as well as the relative importance of shake and final state interaction mechanisms.