Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 52: Silicon Detectors V

T 52.1: Vortrag

Mittwoch, 18. März 2026, 16:15–16:30, KH 01.012

Performance of FBK Trench-Isolated LGAD coupled to Timpix3 Chip — •Chin-Chia Kuo, Erika Garutti, Jörn Schwandt, Annika Vauth, and Constanze Wais — University of Hamburg, 22761, Luruper Chaussee 149, Hamburg, Germany

The widely used instrumentation telescope operated at the DESY-II beam lines consists of six sensor planes using MIMOSA 26 monolithic active pixel devices for track reconstruction. However, the readout time of the current telescope is around 115 µ s. As a result, a time reference layer is necessary to properly associate telescope tracks with the hits in the device under test. Additionally, a layer with high time resolution would provide a reference for the characterization of timing detectors. The low-gain avalanche diode (LGAD) with a good time resolution at the picosecond level is a good candidate for this purpose. LGAD with an isolated trench design is chosen for the study. With the trench design, the multiplication layer is extended, resulting in a better fill factor. In this presentation, the performance of FBK TI-LGAD bump-bonded to the Timepix3 chip is presented, including the gain factor, efficiency, and time resolution. Modules are tested at the DESY testbeam facility, using electrons with an energy of 3 GeV.

Keywords: Trench-Isolated LGAD; Timepix3; DESY Telescope; Time resolution; Testbeam