Speaker
Description
Photon-to-Digital Converters (PDCs), or digital SiPMs, are a new generation of single-photon sensors that overcome the intrinsic limitations of conventional analog SiPMs. By digitizing the output of individual SPADs directly on-chip, PDCs eliminate the need for amplification chains and external ADCs, while providing excellent timing resolution, wide dynamic range, simplified data processing, and channel masking to disable noisy SPADs, reducing baseline noise. We report on the first application of PDC technology to particle physics applications, with proof-of-concept studies in calorimetry and tracking. Using realistic detector conditions, we evaluate the potential of PDCs to improve performance compared to traditional SiPM-based readout. These results demonstrate how these vertical-integrated PDCs can address key challenges in large-scale instrumentation and pave the way for their integration in next-generation high-energy physics experiments.
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