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Current charged-particle detectors are able to estimate the position and energy of a particle, but not its direction. This study is aimed at developing a detector capable of measuring the direction of a charged particle as well as its position. The detector uses an image intensifier and a lens-coupled CMOS (complementary metal-oxide-semiconductor) camera to capture the scintillation light excited...
A fast search algorithm capable of operating in multi-dimensional spaces is introduced. As a sample application, we demonstrate its utility in the 2D and 3D maximum-likelihood position-estimation problem that arises in the processing of PMT signals to derive interaction locations in compact gamma cameras. We demonstrate that the algorithm can be parallelized in pipelines, and thereby efficiently implemented...
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