Major advances in silicon pixel detectors, with outstanding timing performance, have recently attracted significant attention in the community. In this work we present and discuss the use of state-of-the-art Geiger-mode APDs, also known as single-photon avalanche diodes (SPADs), for the detection of minimum ionizing particles (MIPs) with best-in-class timing resolution. The SPADs were implemented in standard CMOS technology and integrated with on-chip quenching and recharge circuitry. Two devices in coincidence allowed to measure the time-of-flight of 180 GeV/c momentum pions with a coincidence time resolution of 22 ps FWHM (9.5 ps Gaussian sigma). Radiation hardness measurements, also presented here, highlight the suitability of this family of devices for a wide range of high energy physics (HEP) applications.
@article{arxiv.2111.09998,
title = {Sub-10 ps Minimum Ionizing Particle Detection with Geiger-Mode APDs},
author = {Francesco Gramuglia and Emanuele Ripiccini and Carlo Alberto Fenoglio and Ming-Lo Wu and Lorenzo Paolozzi and Claudio Bruschini and Edoardo Charbon},
journal= {arXiv preprint arXiv:2111.09998},
year = {2021}
}