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Karate − A setup for high rate tests of the CMS outer tracker 2S module readout chain

Dierlamm, A. ORCID iD icon 1; Husemann, U. 1; Maier, S. 1; Müller, T. 1
1 Institut für Experimentelle Teilchenphysik (ETP), Karlsruher Institut für Technologie (KIT)


KARATE (KArlsruhe high RAte TEst) is a new test system to stress test the readout chain of detector modules for the upgrade of the CMS Outer Tracker for the high-luminosity LHC. Modules consisting of two silicon strip sensors, called 2S modules, are deployed in the outer regions of the Outer Tracker. The readout chain of a 2S module consists of 16 CMS Binary Chips (CBC) each connected to two stacked silicon strip sensors. The CBC contributes data to the first trigger level by identifying particles with large transverse momenta. The output is sparsified on two concentrator chips which in turn are connected to a Gigabit transceiver that prepares the data for output through an optical module. Standard test systems such as test beams or radioactive source measurements need a track reconstruction or do have Gaussian distributed hit profiles and do not reach the occupancy or trigger rates expected in the future Outer Tracker of CMS. KARATE uses a combination of LEDs and photodiodes to inject hit patterns with varying pulse heights, occupancies and trigger rates into the front-end of the CBC, giving full control on 48 channels at 40 MHz. This offers the opportunity to directly compare injection patterns with readout patterns. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000121391
Veröffentlicht am 22.07.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 1824-8039
KITopen-ID: 1000121391
HGF-Programm 54.02.03 (POF III, LK 01) ASICs und Integrationstechnologien
Erschienen in Proceedings of Topical Workshop on Electronics for Particle Physics, TWEPP 2019, Santiago de Compostela, Spain, 2 - 6 September 2019
Veranstaltung Topical Workshop on Electronics for Particle Physics (TWEPP 2019), Santiago de Compostela, Spanien, 02.09.2019 – 06.09.2019
Seiten Code 160323
Serie Proceedings of Science ; 370
Nachgewiesen in Scopus
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