Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Silicon trackers 1

T 11.4: Talk

Monday, March 4, 2024, 16:45–17:00, Geb. 30.22: kl. HS B

Module building and quality control for the ATLAS ITk strip sensor endcap — •Elizaveta Sitnikova, Sergio Diez Cornell, Christian Sander, Sarah Heim, Serhat Ördek, Kunlin Ran, Céline Gerdts, Eric Hüpel, Lukas Bayer, and Sören Ahrens — DESY, Hamburg, Germany

The current ATLAS Inner Detector, which has both silicon and gaseous parts, will reach the end of its operating life at the end of LHC Run 3. Before the start of the next run it will be completely replaced by an all-silicon tracker (ITk). DESY plays a significant role in building one of the silicon strip endcaps in collaboration with multiple institutes worldwide. The endcaps, positioned at the forward regions of the detector, are designed to capture particle tracks with small angles with respect to the beam axis. Two out of six module types, used in the endcap, are built at DESY Hamburg, and later the final assembly of the endcap will also take place there. The process of building modules takes multiple steps and requires regular strict quality control. This presentation will focus on the individual steps of the module building process at DESY Hamburg and its quality control. This process involves high precision gluing with custom-made tooling and gluing robots, multiple optical metrology steps, and detailed electrical testing of the completed modules at different temperatures.

Keywords: ATLAS ITk; Silicon strip; Module building