High-Resolution Fast-Neutron and Gamma Digital Radiography

The fast neutron hodoscope at TREAT can be modified for high resolution radiography. Time-resolved radiography normally performed by the hodoscope with coarse spatial resolution may be traded for good space definition at the expense of time resolution, allowing the hodoscope to become a dual purpose instrument. The modifications require remote motorized scanning of the collimator and simultaneous 334-channel data collection over extended intervals of time. By doing so, it becomes possible to generate digital radiographs without the necessity for mechanical disturbance of the object being viewed. Furthermore, separate and distinct images of fuel and steel may be produced.