  A new method for directional fast neutron detection is proposed based on a
neutron time projection chamber (TPC) and position-sensitive plastic
scintillation detectors. The detection system can efficiently locate the
approximate location of a hot spot with 4{\pi} field-of-view using only the
neutron TPC. Then, the system generates a high-resolution image of the hot spot
using selected coincidence events in the TPC and the scintillation detectors. A
prototype was built and tested using a Cf-252 source. An efficiency of 7.1x10-3
was achieved for fast searching. The angular resolution was 7.8{\deg} (full
width at half maximum, FWHM) for high-resolution imaging using the simple back
projection method.
