Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 66: DAQ, trigger and electronics III

T 66.1: Vortrag

Mittwoch, 17. März 2021, 16:00–16:15, Tp

Power Distribution in the Mu3e Experiment — •Lucas Sebastian Binn for the Mu3e collaboration — PRISMA+ Cluster of Excellence and Institute of Nuclear Physics, Johannes Gutenberg University Mainz

The Mu3e experiment at PSI searches for new physics utilizing the lepton-flavor-violating decay of a positive muon into two positrons and one electron. The detector consists of a lightweight tracker built from high-voltage monolithic active pixel sensors complemented by scintillating tiles and fibres for precise timing measurements. Powering of the pixel sensors and scintillating detector poses unique challenges, requiring voltages in the range of 2.0V to 3.3V and currents of up to 21A per power partition. The experiment will supply these by using DC-DC converters placed as close as possible to the consumers inside the detector's magnet. The converters step-down 20V, produced by external commercial power supplies, to the required voltages. In the final experiment, 16 converters will be mounted together in one crate. A first prototype crate has been designed and produced, providing space for four board and using an external controller. To allow high-current operation, a custom water-cooling solution has been designed and is currently being tested.