DEMONSTRATION OF 3-DIMENSIONAL IMAGING WITH A GERMANIUM COMPTON CAMERA

A proof-of-concept experiment was performed to demonstrate the three-d imensional imaging capabilities of an all-germanium Compton camera for near-field sources. Eight high purity germanium (HPGe) coaxial detect ors were configured in two planes of four detectors each. The data acq uisition system was assembled from available hardware and off-the-shel f electronics using standard NIM and CAMAC modules. Sixteen-parameter data were recorded event-by-event for later analysis and image reconst ruction. The energy resolution of the system was 0.3% at 1333 keV. Pre liminary analysis indicates the position resolution for a source at on e meter and a specific detector geometry was less than a centimeter.