Köln 2025 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 43: Instrumentation IX
HK 43.4: Vortrag
Donnerstag, 13. März 2025, 15:00–15:15, SR Exp1A Chemie
Test-beam measurements with a babyMOSS beam telescope — •Alexander Rachev for the ALICE Germany collaboration — Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn — Forschungs- und Technologiezentrum Detektorphysik, Universität Bonn
ALICE 3 is a novel, next-generation heavy-ion experiment at the LHC that is planned to be installed during the Long Shutdown 4. In the new detector, charged-particle tracking will be performed entirely by monolithic active pixel sensors (MAPS) based on 65nm CMOS technology. For the outer tracking alone an area of 45 m2 needs to be covered, which requires extensive R&D on sensors, mechanics and cooling, as well as cooperation with industry.
In order to quantify the characteristics of new sensors, e.g. the spatial resolution, a reliable beam telescope is indispensible. A beam telescope is an arrangement of detectors used to track particles, providing a reference for the Device under Test (DUT) in a particle (test-)beam. Sensors that are currently being investigated for the upcoming inner tracker upgrade form the starting point for developments of the outer tracker. One of these sensors is the babyMOSS which is being used to construct a beam telescope for future characterizations and to understand the behavior of the newly developed MAPS.
In this talk I will present the setup of a babyMOSS beam telescope and show analysis results of testbeam data. Supported by BMBF.
Keywords: ALICE 3; Beam Telescope; Outer Tracker; babyMOSS