SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 124: Si-Strip/CMS, Pixel/DMAPS

T 124.3: Vortrag

Donnerstag, 23. März 2023, 16:20–16:35, WIL/C307

Systematic tests of the testing infrastructure for CMS Outer Tracker Service Hybrids — Christian Dziwok², Lutz Feld¹, Katja Klein¹, Martin Lipinski¹, Daniel Louis¹, Alexander Pauls¹, Oliver Pooth², Nicolas Röwert¹, •Felix Thurn¹, Michael Wlochal¹, and Tim Ziemons² — ¹1. Physikalisches Institut B, RWTH Aachen — ²3. Physikalisches Institut B, RWTH Aachen

The CMS Collaboration is developing so-called 2S modules for the Phase-2 upgrade of the CMS tracker. This upgrade will enable the CMS experiment to utilize the high luminosity provided by the future HL-LHC. A 2S module consists of two silicon strip sensors, two support bridges and three electronics hybrids. One of these hybrids is the Service Hybrid (SEH), which supplies the power to all other parts of the module, aggregates the data lines from both sides of the module and is responsible for the data transmission via optical links to the back-end of the detector. During the production roughly 20,000 SEHs will undergo a vigorous quality control procedure. The test card for testing the functionality of the SEH is developed by RWTH Aachen and around 100 test cards were manufactured. These will be distributed to the manufacturer and collaborating institutes of the SEHs. Before that they have been tested and the statistical fluctuations of the measurements have been analyzed. A crate with several test cards was set up in a climatic chamber and the whole testing procedure including thermal cycling was exercised. Selected results from the commissioning and quality control of the test cards are presented.