TRIPLE DIFFERENTIAL CROSS-SECTION MEASUREMENTS FOR DOUBLE PHOTOIONIZATION OF D-2

Angular distributions of the two ejected electrons following photodoub le ionization of molecular deuterium have been measured using a toroid al photoelectron-photoelectron coincidence spectrometer in conjunction with synchrotron radiation. Six (gamma,2e) triple differential cross sections (TDCS) were measured in the plane orthogonal to the photon be am direction with E-1 = E-2 = 10 eV. The angular distributions are sim ilar to those of helium, but with differences which we highlight by co mparing the D-2 TDCS with helium TDCS measured under nearly identical conditions.