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We have developed a PET detector module based on sub-millimeter lutetium oxyorthosilicate (LSO) crystal block and prototype Silicon Photomultiplier (SiPM) arrays with additional fast timing output. The LSO array consists of 20×20 crystals of which each pixel is 0.78 × 0.78×3 mm3 and the pitch is 0.8 mm due to the reflector between pixels. The FM SiPM array and FB SiPM array are arranged 4×4 with 4×4mm...
Multi-Pixel Photon Counter (MPPC) is a Geigermode APD developed by Hamamatsu Corp. We proposed that it could be a suitable photo-sensor for next-generation time-of-flight PET detectors due to mainly its high photon detection efficiency. Therefore, we concentrated on the measurement of coincidence timing performance of various MPPCs in conjunction with LYSO crystal scintillators. With 3mm × 3mm devices...
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