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Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 68: Detektorsysteme IV

T 68.5: Talk

Wednesday, March 27, 2019, 17:00–17:15, H08

Test System for Service Hybrids of CMS Silicon Strip ModulesChristian Dziwok2, Lutz Feld1, Waclaw Karpinski1, Katja Klein1, Martin Lipinski1, Franz Josef Neus1, •Alexander Pauls1, Gerhard Pierschel1, Oliver Pooth2, Marius Preuten1, Max Rauch1, Michael Wlochal1, and Tim Ziemons211. Physikalisches Institut B, RWTH Aachen — 23. Physikalisches Institut B, RWTH Aachen

The CMS collaboration is developing two-sided silicon strip modules for the second phase of the CMS outer tracker upgrade. This upgrade will enable the CMS experiment to utilize the high luminosity provided by the future HL-LHC. The modules' Service Hybrids are responsible for the high and low voltage distribution on the module and the data connection via optical links to the back-end electronics. During the production a test system for the roughly 20,000 Service Hybrids will be needed. It is designed to test all functions of the Service Hybrids during active thermal cycling. The design is centred around a dedicated test board PCB, which hosts a Raspberry Pi miniature computer, serializer/deserializer ASICs to mimic the readout hybrids' data stream, and components to test the slow control and power distribution features. The design of the system, the test software, and recent measurements with fully functional Service Hybrid prototypes are presented.

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