Luise Poley (Humboldt U.) "Testbeam studies for the ATLAS ITk strip tracker"

Abstract
During Long Shutdown 3 (2024/2025) of the Large Hadron Collider, the ATLAS Inner Detector will be replaced with a new all-silicon tracker, composed of a pixel and a strip tracker. The strip tracker will consist of 18,000 detector modules, each comprised of a silicon strip sensor with readout electronics glued on to its surface.

Extensive quality assurance and quality control programmes have been established for module components as well as combined structures in order to ensure high reliability and efficiency. Among different methods to test components and modules, measurements in particle beams (testbeams) provide operating conditions similar to the LHC and thus are critical for understanding the detector performance.

This talk presents measurements performed using an electron beam at the DESY-II testbeam facility and X-ray photons at the Diamond Light Source. The results show the influence of different sensor architectures on the module performance, how testbeams can improve the understanding of material distribution in the detector and how these measurements can benefit the future ATLAS detector.

BIO:
I have studied at the Humboldt-Universität zu Berlin, where I worked on ATLAS analysis (b-tagging efficiencies) for my bachelor thesis. I joined the ITk strip tracker project in 2012, when I started to work at DESY for my master thesis and later for my PhD. Since 2015, I have participated in all ITk testbeam activities at DESY and organised nine testbeams myself.