  A multi-detector array has been designed and constructed for the simultaneous
measurement of energy- and angular correlations of electron-positron pairs.
Experimental results are obtained over a wide angular range for high-energy
transitions in 16O, 12C and 8Be. A comparison with GEANT simulations
demonstrates that angular correlations between 50 and 180 degrees of the
electron-positron pairs in the energy range between 6 and 18 MeV can be
determined with sufficient resolution and efficiency.
