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T: Fachverband Teilchenphysik

T 20: DAQ, trigger and electronics I

T 20.1: Vortrag

Montag, 15. März 2021, 16:00–16:15, Tt

Prototyping Serial Powering with RD53A — •Florian Hinterkeuser, Klaus Desch, Matthias Hamer, Fabian Hügging, Hans Krüger, and Charlotte Perry — Physikalisches Institut, Universität Bonn

The high luminosity upgrade for the Large Hadron Collider at CERN requires a complete redesign of the current inner detectors of ATLAS and CMS. These new inner detectors will consist of all-silicon tracking detectors. A serial powering scheme has been chosen as baseline for the pixel detector to cope with the higher number of modules and the higher power consumption of the new front-end chip, spatial constraints and the need to minimize the tracker's material budget.

This new powering scheme provides challenges for the electrical and mechanical design. In order to verify this new powering scheme and its implications on the detector integration, efforts are ongoing to set up a prototype for serial powering using modules based on the RD53A chip, a half-size prototype for the new Pixel front-end chip, developed by the RD53 collaboration. In particular, a serial powering stave consisting of up to 8 RD53A quad chip modules has been set up in Bonn.

First results from the ongoing activities with RD53A chips are presented. Emphasis is put on the electrical characterization of an RD53A serial powering chain, using representative services and power supplies. The setup, measurement goals and characterization of the serial powering chain will be discussed.