SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 20: Pixel ITk, Si-Strips/Other
T 20.4: Vortrag
Montag, 20. März 2023, 17:15–17:30, REC/C213
Commissioning and Testing of a QC-Setup for the ATLAS ITK-Pixel Outer Barrel Bare Cell — •Nico Klein1, Matthias Hamer1, Klaus Desch1, Florian Hinterkeuser1, Diego Alvarez Feito2, Alexandre Lacroix2, and Nicola Pacifico2 — 1Universität Bonn — 2CERN
The high-luminosity upgrade of the Large Hadron Collider at CERN requires a complete redesign of the current tracking detector of the ATLAS experiment. The new Inner Tracker, the ITk Detector, will consist of a silicon pixel detector and a silicon strip detector. The ITk Pixel Detector is divided into three subsystems, the Outer Barrel (OB), Outer Endcaps and Inner System. In the OB, modules are loaded on cells (pyrolytic graphic tiles that are glued to an aluminum-graphite cooling block) before they are mounted on the local supports. These cells play a crucial role in the thermal performance of the modules, as they provide the connection between the modules and the cooling system. In order to meet the demanding requirements that are placed on the cooling system of the ITk Pixel Detector, bare cells must be tested for their thermal conductivity before silicon modules are loaded onto them. In this contribution, a setup for the thermal quality control of the bare cells is presented, as well as measurements of the thermal performance of prototype cells with this setup.