Heidelberg 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 97: Electronics 1

T 97.2: Vortrag

Donnerstag, 24. März 2022, 16:30–16:45, T-H28

Development of a DC-DC converter for powering the Mu3e detector — •Sophie Gagneur for the Mu3e collaboration — Institut für Kernphysik, JGU Mainz

The Mu3e experiment under construction at the Paul Scherrer Institute, Switzerland, aims to search for the lepton flavour violating decay of a muon into one electron and two positrons with an ultimate sensitivity of one in 10¹⁶ muon decays. The Mu3e detector consists of a tracker based on High-Voltage Monolithic Active Pixel Sensors (HV-MAPS) combined with scintillating tile and fibre timing detectors. The detector ASICs need a supply voltage of around 2V. This voltage is generated from the 20V external supply voltage via switching DC-DC converters. These buck converters must be able to operate within a magnetic field and provide a constant output voltage with a ripple of less than 10mV to guarantee a proper operation of the pixel sensors and timing detectors. The second version of the Mu3e DC-DC converter has been designed, produced and already tested successfully in the laboratory, implementing features such as a secondary output filter and a temperature interlock for the pixel sensors. The final version is currently being designed and integrated into the experiment to be used during the upcoming commissioning runs.