METHOD, DEVICE AND SYSTEM FOR LOCALIZING AN INTERACTION POINT

摘要

The present invention relates to a method of localizing an interaction point from the light distribution generated in a monolithic scintillator element, the scintillator being provided with a photodetector and the photosensitive area of the photodetector being subdivided in an array of photosensitive pixel elements, comprising sensing by the pixel elements the light distribution in response to interaction of radiation with the scintillator element and providing for each pixel element an output signal representative of the light sensed. The method further comprises, for each column of pixel elements, summing output signals of the pixel elements in that column and providing a respective summed column output signal and, for each row of pixel elements, summing output signals of the pixel elements in that row and providing a respective summed row output signal. The method furthermore comprises determining position information about the interaction point from the summed column output signals and the summed row output signals.