Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 97: Electronics 1

T 97.3: Vortrag

Donnerstag, 24. März 2022, 16:45–17:00, T-H28

Powering Scheme of the Tracking Detector of the P2 Experiment at MESA — •Lars Steffen Weinstock — PRISMA+ Cluster of Excellence and Institute of Nuclear Physics, Johannes Gutenberg University Mainz

P2 is a precision experiment planned for the Mainz Energy recovering Superconducting Accelerator (MESA) currently under construction. The goal of P2 is to determine the electroweak mixing angle at low energy scales with unprecedented precision by measuring the parity violating asymmetry in proton-electron scattering at low momentum transfer. A key parameter for the analysis, the electron momentum transfer during scattering, is measured by the P2 tracker, which is placed inside the 0.6 T solenoid spectrometer. The tracker consists of eight identical modules utilising a total of 4320 novel High Voltage Monolithic Active Pixel Sensors (HV-MAPS) for precise track reconstruction. With each HV-MAPS drawing about 1W the tracker front-end requires more than 5kW of power, which is supplied to the tracker using a remote-sense technique. This talk presents the current state of the powering scheme of the P2 tracking detector, key design parameters, and technical details of the implementation including first test measurements.