Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 39: Pixel Detectors II

T 39.2: Talk

Tuesday, March 16, 2021, 16:20–16:35, Tn

Testing and Characterization of RD53A Quad Modules — •Lars Schall, Michael Daas, Fabian Hügging, David-Leon Pohl, and Jochen Dingfelder — Physikalisches Institut, University of Bonn, Germany

The increased data rate and radiation level expected for the High-Luminosity upgrade of the Large Hadron Collider (LHC) demands the ATLAS Experiment to upgrade its detector systems. To maintain an excellent tracking performance in the high occupancy environment and cope with the increased total radiation fluence the improved Inner Tracker (ITk) will consist of all-silicon detectors. The ITk will be built largely of quad modules. As part of the ITk preproduction program RD53A quad modules are assembled and tested. The RD53A readout chip is a half-size prototype for testing purposes only, developed by the RD53 collaboration. Four RD53A readout chips interconnected with one large sensor tile yield a quad module.

First results from the ongoing tests and characterizations of RD53A quad modules are presented. Special emphasis is put on electrical tests and tuning procedures of digital quad modules. Further measurements procedures for RD53A quad modules with sensors will be discussed.