Speaker
Description
The Low Gain Avalanche Diode (LGAD) is a novel silicon sensor known for its excellent timing resolution. The AC-Coupled LGAD (AC-LGAD) is a new type 4D detector developed based on LGAD technology, capable of accurately measuring the time and position information of particles. This presentation will showcase the development status of LGAD and AC-LGAD sensors designed by the Institute of High Energy Physics (IHEP). Following irradiation fluence of 2.5 × 1015 neq/cm2, the time resolution of IHEP LGAD sensors is superior to 35 ps, with collected charges exceeding 10 fC. The IHEP LGAD has been selected as the sensor for the ATLAS High Granularity Timing Detector (HGTD) project. The position resolution of IHEP AC-LGAD can achieve 10 μm, with a time resolution of 38 ps, making it suitable for the development of time-track detectors in future collider experiments such as the Circular Electron Positron Collider (CEPC) and the Future Circular Collider (FCC).
