Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 90: Silicon trackers 4

T 90.4: Vortrag

Donnerstag, 7. März 2024, 16:45–17:00, Geb. 30.22: kl. HS B

Temperature dependence study of data link stability of MuPix11 — •Florian Schlötzer for the HD-HVMAPS collaboration — Physikalisches Institut Universität Heidelberg, Germany

For the Mu3e experiment the need for detectors with the ability to handle a high rate of muon decays is crucial. High-Voltage Monolithic Active Pixel Sensor (HV-MAPS) achieves an accurate time and spatial resolution combined with a high readout capability, fitting this requirement. It combines sensor and readout-electronics in one ultra-thin chip. The MuPix11 is a fully developed HV-MAPS chip used for the construction of the tracking detector for the Mu3e experiment.

In the Mu3e experiment the sensors will be operated in a large temperature range, which will influence their performance. This talk focuses on the data integrity and the stability of data links for a temperature range from -20°C to 80°C. The signal quality is studied with the help of eye diagrams and the adjustable parameter space of the data transmitter is checked for stable ranges. A linear decrease of the signal amplitude is observed with increasing temperature, yet a stable operation without transmission errors can be achieved in all cases.

Keywords: MuPix11; HV-MAPS; Mu3e; temperature dependence