Study of Optimal Segmentation for Active Hybrid Single-Photon Sensors

FastICpix is a novel reconfigurable low-light level hybrid detector concept that can be scaled to arbitrarily large areas and aims to measure the position and the time of arrival of single photons with ~20 ps time resolution, bringing a revolution in medical imaging and other Time-of-Flight applications. FastICPix consists of an array of groups of SPADs 3D-connected to a pixelated readout ASIC based on novel reconfigurable architectures designed in 65 nm CMOS technology. Two flavours of front-end amplifiers have been studied, achieving picosecond jitter. FastICpix concept has been validated by simulation.