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

We have performed combined digital imaging of neutrons and gamma rays in mixed radiation fields. An organic liquid fast scintillation detector has been integrated into a system with a digitizer, 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 coordinate system for both gamma rays and neutrons, simultaneously. These data indicate that mixed fields can be readily imaged with a single detector in terms of their gamma-ray and neutron components at the same time.