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This paper presents the system design and engineering of a lower-cost, large axial field-of-view micro PET-CT (MuPET) for small animal imaging. The system has been constructed and being tested. 30,420 LYSO detectors (1.25 transaxial × 1.4 axial × 10 mm3) form a 16.5-cm detector solid ring and a large 11.6-cm axial field for high detection sensitivity. The 30240 crystals are configured into 180 pentagon-shaped...
A fully digital FPGA-based high count-rate coincidence system has been developed for TOF (Time of Flight) and non-TOF PET cameras. Using a hybrid of AND-logic and Time-mark technology produced both excellent timing resolution and high processing speed. In this hybrid architecture, every gamma event was synchronized by a 125 MHz system clock and generating a trigger associated with a time-mark given...
A low-cost fully digital FPGA-based high count-rate coincidence system has been developed for TOF (Time of Flight) and non-TOF PET cameras. Using a hybrid of AND-logic and Time-mark technology produced both excellent timing resolution and high processing speed. In this hybrid architecture, every gamma event was synchronized by a 125 MHz system clock and generating a trigger associated with a time-mark...
Time-of-flight (TOF) information can improve the imaging quality of positron emission tomography (PET) camera by calculating the original positron-electron annihilation position. In this work, we measured the preliminary TOF resolution of non-TOF-optimized LYSO arrays for TOF PET using our PMT-Quadrant-Sharing (PQS) technology which has higher light collection efficiency (no external light guide)...
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