Development of Fast Front-End Electronics for the Muon Trigger Detector in the PSI muEDM Experiment

TL;DR

This paper presents a novel fast front-end electronic readout system for the muon trigger detector in the muEDM experiment, optimized for high efficiency, minimal delay, and stability within a magnetic environment.

Contribution

It introduces a new electronic design tailored for the muEDM muon trigger detector, addressing challenges of operation in magnetic fields and contamination rejection.

Findings

High detection efficiency achieved in tests

Minimal signal propagation delays demonstrated

Stable operation under experimental conditions

Abstract

This paper outlines the design and development of a fast front-end electronic readout board for the muon trigger detector in the muEDM experiment at the Paul Scherrer Institute. The trigger detector, which consists of a gate and aperture detector, is strategically located at the end of the superconducting injection channel to generate trigger signals for a magnetic kicker, which activates upon the injection of muons into the central region of the storage solenoid. Within the magnetic field of the solenoid, the system configuration is optimized to meet stringent performance specifications, including minimal signal propagation delays, high detection efficiency, non-magnetic properties, and consistent operational stability under varying experimental conditions. Additionally, the design incorporates robust methods for rejecting positron contamination in the muon beamline. The results presented include performance evaluations from both bench testing and actual beam tests, highlighting the effectiveness and reliability of the electronic design.