Tianqi Gao

HV-MAPS Pixel Detectors for Particle Tracking and LiDAR: A Dual-Use Silicon R&D

Abstract: High-voltage monolithic active pixel sensors (HV-MAPS) are a new generation of silicon detectors developed for high-energy physics tracking. Projects such as MightyPix (LHCb), ATLASPix, MuPix, TelePix and ALPIDE demonstrate how HV-MAPS combine fine spatial resolution, sub-nanosecond timing, radiation hardness and low cost through standard CMOS processes that enable mass production. Within the LHCb MightyPix programme, these sensors already achieve high efficiency and excellent timing, paving the way for precision vertex and timing detectors in future collider upgrades. This talk will explore how HV-MAPS can be adapted beyond high-energy physics to applied sensing, such as LiDAR and robotic vision. By tailoring their pixel and readout architectures, HV-MAPS could enable compact, high-speed, and cost-efficient depth sensors that capture both timing and intensity information. Such devices have the potential to deliver richly textured 3D imaging, bridging collider instrumentation and applied sensing with opportunities across autonomous systems, quantum imaging and industrial metrology.