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Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 39: Pixel Detectors II

T 39.3: Vortrag

Dienstag, 16. März 2021, 16:35–16:50, Tn

Radiation Damage Measurements of the Hybrid Pixel Readout Chip RD53A — •Marco Vogt, Jochen Dingfelder, Florian Hinterkeuser, Tomasz Hemperek, Fabian Hügging, Hans Krüger, Konstantinos Moustakas, Piotr Rymaszewski, Mark Standke, and Norbert Wermes — Physikalisches Institut der Universität Bonn

After the phase-2 upgrade of the LHC at CERN, the instantaneous luminosity will be increased by a factor of ~7. New detector systems are required which are able to deliver hit information at drastically increased data rates and cope with unprecedented radiation levels of almost 1 Grad.

The RD53 collaboration will provide the pixel readout chips for the innermost tracking detector layers of both ATLAS and CMS. The half- and full-scale prototype chips RD53A and ITkPixV1 have been manufactured in a 65 nm CMOS process.

Irradiation campaigns with X-rays and radioactive sources indicate that the radiation damage of RD53A is significantly dose rate dependent. It is therefore necessary to improve the radiation models to further optimize the design and make better predictions about the degradation of detector performance during its lifetime, prior to the submission of the final production chip.

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

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