Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 82: Pixel detectors IV

T 82.3: Vortrag

Donnerstag, 2. April 2020, 17:00–17:15, L-2.004

Radiation Damage Measurements of the Hybrid Pixel Readout Chip RD53AJochen Dingfelder, Florian Hinterkeuser, Tomasz Hemperek, Fabian Hügging, Hans Krüger, Konstantinos Moustakas, Piotr Rymaszewski, •Marco Vogt, and Norbert Wermes — Physikalisches Institut der Universität Bonn

After the phase-2 upgrade of the LHC at CERN, the instantaneous luminosity will be increased substantially. New detector systems are required which are able to deliver hit information at drastically increased data rates and cope with unprecedented radiation levels. The RD53 collaboration will provide the pixel readout chips for the innermost tracking detector layers of both ATLAS and CMS. The first large-scale prototype chip RD53A was manufactured in a 65 nm CMOS process and is available since 2017.

Accelerated irradiation campaigns indicate that the radiation damage of RD53A is significantly dose rate dependent. It is therefore necessary to improve the radiation models to make better predictions about the detector performance during its lifetime, prior to the submission of the next prototype chip.

In this contribution, the ongoing low-dose-rate irradiation campaigns and their results will be presented.

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