THREE-DIMENSIONAL SCINTILLATION DETECTION TECHNIQUE FOR RADIATION DETECTION

A technique for determining the three-dimensional position of radiation interaction in a scintillator is disclosed. The method comprises detecting a scintillation event within a scintillator to produce a measured detector response, by using a photodetector that has a planar surface optically coupled to the scintillator and that has a plurality of pixels defined on the planar surface. The method further comprises calculating a spatial distribution of photons, resulting from the scintillation event, across the planar surface of the detector, and determining an angle-dependent quantum efficiency of the photodetector, associated with the scintillation event. The method further comprises calculating a detector response of the photodetector based on the spatial distribution of photons and the angle-dependent quantum efficiency, to produce a calculated detector response; and computing a position in three dimensions of the scintillation event based on the calculated detector response and the measured detector response.