Combined digital imaging of mixed-field radioactivity with a single detector

We have performed combined digital imaging of neutrons and γ rays in mixed radiation fields. An organic liquid fast scintillation detector has been integrated into a system with a digitizer, a collimator and an equatorial mount to characterize two mixed-field environments. Images have been produced corresponding to the angular distribution of events and the three-dimensional Cartesian co-ordinate system for both γ rays and neutrons simultaneously. These data indicate that mixed fields can be readily imaged with a single detector in terms of their γ -ray and neutron components at the same time.