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Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 94: Silicon Strip Detectors 2

T 94.3: Vortrag

Donnerstag, 24. März 2022, 16:45–17:00, T-H25

Recent results from the End-of-Substructure card for the ATLAS Strip Tracker Upgrade — •Rickard Stroem1, Artur Boebel1, Harald Ceslik1, Mogens Dam2, Sergio Diez Cornell1, Peter Goettlicher1, Ingrid Gregor1, James Keaveney3, Max Nikoi Van Der Merwe3, Jan Oechsle2, Stefan Schmitt1, Marcel Stanitzki1, and Jane Wyngaard31DESY, Germany — 2Niels Bohr Institute, Denmark — 3University of Cape Town, South Africa

The silicon tracker of the ATLAS experiment will be upgraded for the High-Luminosity Upgrade of the LHC. The main building blocks of the new strip tracker are modules of silicon sensors and hybrid PCBs hosting the read-out ASICs. The modules are mounted on rigid carbon-fibre substructures, known as staves in the central barrel region and petals in the end-cap regions, that provide services to all the modules. At the end of each stave/petal, a so-called End-of-Substructure (EoS) card facilitates the transfer of data, power, and control signal between the modules and the off-detector systems. The module front-end ASICs transfer data to the EoS card on 640 Mbit/s differential lines. The EoS connects up to 28 data lines to one or two lpGBT chips that provide data serialisation and uses a 10 GBit/s versatile optical link (VL+) to transmit signals to the off-detector systems. We will here present the EoS card's design, results from various stress tests, and the design and status of the dedicated production quality control test-stands in the Detector Assembly Facility at DESY.

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