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We developed a digital signal processing method to measure the coincidence timing resolution of a 13×13 (4×4×20 mm3) PQS LYSO block coupled with Hamamatsu R9779 PMT and investigated the time alignment effect. A single LYSO (4×4×20 mm3) coupled with R9779 was used as a timing measurement reference which has a resolution of 214 ps (FHWM). Signals from PMTs were captured by oscilloscope and analyzed...
Current clinical PET with 4-6 mm intrinsic resolution (6-9 mm practical) limits many important brain studies. The objective of this study is to use our existing technology for realizing an ultrahigh resolution high-sensitivity PET with a lower cost for neuroimaging. This proposed neuro-PET has a 54-cm detector ring diameter, a large 21-cm axial field of view (AFOV) for capturing the whole brain and...
Using standard circular photomultipliers in quadrant sharing configuration (PQS), four new high resolution L(Y)SO detector blocks for human PET applications have been developed. The detector blocks were assembled in very large arrays of 14times14, 15times15, and, 16times16 for two of them. The crystal pitch sizes were 2.74times2.74times20 mm3, 3.25times3.25times20 mm3, 2.42times2.42times20 mm3, 2...
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