Erlangen 2026 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 52: Silicon Detectors V
T 52.8: Vortrag
Mittwoch, 18. März 2026, 18:00–18:15, KH 01.012
Module assembly for the ATLAS High Granularity timing detector — •Hendrik Smitmanns1, Jessica Höfner1, Frederic Maximilian Matthias Silvan Fischer1, Annika Stein1, Lucia Masetti1, Andrea Brogna2, Atila Kurt2, Fabian Piermaier2, Steffen Schönfelder2, Quirin Weitzel2, and Florian Lika2 — 1Institut für Physik, Johannes-Gutenberg Universität Mainz — 2PRISMA+ Detector Lab, Johannes-Gutenberg Universität Mainz
To meet the challenges of the High Luminosity Large Hadron Collider (HL-LHC), especially the increase of pile-up interactions, the ATLAS detector will need to be upgraded. One of the foreseen upgrades will be the installation of the High-Granularity Timing Detector (HGTD). The HGTD will mitigate the effects of pile-up in the ATLAS forward region, providing a time resolution of about 30−50 ps per track. The active detector area consists of 2-double-sided disks per end-cap. A disc side contains about 1000 modules, each consisting of two 2x2 cm2 Low Gain Avalanche Detectors which are bump-bonded to two ASICs and glued to a PCB. Multiple modules are then glued onto a support unit to form a detector unit, which will then be built into the final detector at CERN. The current phase of pre-production is used to test and finalize all procedures towards production, for while around 1000 modules, roughly 10 % of the final detector, will be assembled at Johannes Gutenberg University Mainz, one of the six assembly sites. The complete assembly procedure of the final version of the detector module is presented, with focus on assembly, metrology, wire bonding, initial testing and the assembly process for the detector units.
Keywords: ATLAS; High Granularity Timing Detector; HGTD