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An 8 16 pixel array based on CMOS small-area silicon photomultipliers (mini-SiPMs) detectors for PET applications is reported. Each pixel is 570 610 m in size and contains four digital mini-SiPMs, for a total of 720 SPADs, resulting in a full chip fill-factor of 35.7%. For each gamma detection, the pixel provides the total detected energy and a timestamp, obtained through...
A new architecture for Positron Emission Tomography visible-light detectors is presented. The architecture is based on mini-SiPMs (arrays of 32 SPADs), which are locally digitized. With this architecture we expect to achieve a high fill factor while still performing an early enough analog-to-digital conversion so as to avoid interconnect parasitics common of standard SiPMs. The detector is implemented...
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