Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Silicon trackers 1

T 11.7: Talk

Monday, March 4, 2024, 17:30–17:45, Geb. 30.22: kl. HS B

Developments for tests with the ITk Pixel Outer-Barrel LLS QC setups — •Hans Joos^1,2, Benedikt Vormwald¹, Stan Lai², and Leyre Flores Sanz De Acedo¹ — ¹CERN — ²II. Physikalisches Institut, Georg-August-Universität Göttingen

For the upgrade of the LHC to the High-Luminosity LHC (HL-LHC), the ATLAS tracking detector will be replaced with an all-silicon detector, the Inner Tracker (ITk), as the higher luminosity requires radiation hard components. Given the close proximity to the interaction point, the environment is especially challenging for the pixel detector. The Outer-Barrel layers of the pixel detector will comprise quad chip modules that are combined into serially powered (SP) chains and loaded on ring and stave shaped low mass carbon-fibre local supports (LLS) to reduce the material budget of the detector.

The integration from individual detector components to a final detector is one of the big challenges of the HL-LHC detector upgrades. Five institutes will be integrating modules on an Outer Barrel local support and test this building block of the detector in a Quality Control (QC) setup in order to ensure the electrical and thermal performance of the LLS before being sent to the final integration stage of the ITk Pixel detector.

This talk will explain the developments for operating, controlling and monitoring of the QC setups and new approaches for deploying the necessary software components to many sites. A successful commissioning of the setups ultimately enables the project to move to preproduction of the LLSs.

Keywords: ATLAS; Phase 2 Upgrade; High-Luminosity LHC (HL-LHC); Inner Tracker (ITk)