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PET based on TOF is desired to enhance the image quality by improving the noise variance in the reconstruction. This benchtop study evaluates the timing performance of the current Hi-Rez detector which is based on a 13times13 LSO array of 4 mm times 4 mm times 20 mm crystals and not optimized for TOF PET applications. A Hamamatsu R9779, fast, 51 mm-diameter PMT was used for some experiments in this...
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