Aachen 2019 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 51: Halbleiterdetektoren III
T 51.5: Vortrag
Mittwoch, 27. März 2019, 17:00–17:15, H03
Characterization of RD53A, a readout ASIC prototype for the Phase-II upgrades of ATLAS and CMS — •Michael Daas, Jochen Dingfelder, Tomasz Hemperek, Florian Hinterkeuser, Fabian Hügging, Hans Krüger, David-Leon Pohl, Mark Standke, Marco Vogt, and Norbert Wermes — Physikalisches Institut der Universität Bonn, Bonn, Deutschland
The Large Hadron Collider (LHC) at CERN will be upgraded for higher luminosities in 2025. The increased luminosity poses new demanding requirements for its detectors.
This talk gives a comprehensive overview over front-end characterization measurements on the RD53A pixel detector readout chip. It was developed by the RD53 collaboration, a joint research and development initiative of the ATLAS and CMS experiments. The RD53A readout chip features a smaller pixel pitch of 50 × 50 µ m2 to mitigate single-pixel pile-up, higher data rate capabilities and high radiation tolerance. This enables the chip to cope with the very high occupancy, that is expected close to the interaction points of the upgraded LHC due to the higher luminosity.
The chip was characterized with regard to the performance of the three different analog front-end implementations in order to conclude the front-end R&D phase and decide which flavor will be used in the final production chip for the pixel tracking detectors of ATLAS and CMS. Measurement results comparing all three front-end flavors will be presented in this talk.