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Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 11: Silicon trackers 1

T 11.1: Vortrag

Montag, 4. März 2024, 16:00–16:15, Geb. 30.22: kl. HS B

Status update of the ATLAS ITk Pixel cell integration site in Bonn — •Alexandra Wald, Klaus Desch, Matthias Hamer, Florian Hinterkeuser, Nico Klein, Dominik Hauner, Fabian Hügging, and Jochen Dingfelder — PI, Uni Bonn, Germany

In conjunction with the high luminosity upgrade of the Large Hadron Collider at CERN, the current tracking system of the ATLAS experiment will be replaced by the Inner Tracker (ITk), an all-silicon detector consisting of 5 layers of pixel and 4 layers of strip detectors. More than 8000 modules will be installed in the pixel layers, which together have an active area of approximately 13 m2 and cover a pseudorapidity of up to 4. In order to build such a large detector in time, the integration of the ITk Pixel modules on their local support structures, as well as the quality control of individual loaded local supports will be distributed over several institutes. One of the assembly lines will be setup at the University of Bonn, with technicians from other German locations also helping with cell integration. Due to the serial powering scheme of the ITk Pixel Detector, the quality control of a loaded local support is challenging in several aspects, as the simultaneous operation of multiple modules is necessary for any tests. A large number of different components must hence be integrated into the quality control setup, such as an optical readout system, an interlock system, industrial power supplies and a scalable DCS. In this presentation, the status of the loaded local support assembly line and QC setup in Bonn is presented, with particular attention to the data aquisition system based on a Felix server and the integration into the DCS.

Keywords: Pixel; ITk; ATLAS; Cell integration

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