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HK: Fachverband Physik der Hadronen und Kerne

HK 51: Instrumentation XI

HK 51.3: Vortrag

Donnerstag, 13. März 2025, 16:30–16:45, SR Exp1A Chemie

Timing resolution of the Analogue Pixel Test Structure — •Lars Döpper for the ALICE Germany collaboration — Helmholtz-Institut für Strahlen- und Kernpyhsik — Forschungs- und Technologiezentrum Detektorphysik

The ALICE collaboration plans a complete overhaul of its detector for Long Shutdown 4 of the LHC titled ALICE 3. This new detector will utilize a fully MAPS-based detector for charged particle tracking. To achieve the envisioned time binning of 500 ns, a timing resolution of 100 ns is required for the sensor.

The Analogue Pixel Test Structure (APTS), a prototype sensor developed in the scope of the Inner Tracking System 3 project, offers direct access to the analogue waveforms of the sensor diodes. As the 65 nm production process used for APTS will also be used for the final sensor of ALICE 3, testing the timing resolution of APTS offers insight into the performance of sensors fabricated in this production process. In this talk I present a novel approach to measure the timing resolution of APTS without the need for any external time reference.
This work is supported by BMBF.

Keywords: ALICE3; MAPS; Timing; ITS3