Current-readout technique for ultra-high-rate experiments

TL;DR

This paper introduces a novel current-readout method capable of measuring extremely high count rates up to 1 Gcps, enabling advanced experiments and potential applications in non-binary logic circuits.

Contribution

The study presents a new direct current measurement technique that overcomes pulse pileup and deadtime limitations, demonstrated in high-rate muon experiments and applicable to future logic circuits.

Findings

Achieved measurement of 1 Gcps count rates.

Successfully applied to muon spin experiments.

Explored applications in analog-logic gates.

Abstract

This study developed a new current-readout technique capable of handling measurements with high count rates reaching 1 Gcps. By directly capturing the output current of a photomultiplier as a digitized waveform, we estimated event rates, overcoming the limitations imposed by pulse pileup constraints and deadtimes. This innovative method was applied to a muon spin rotation/relaxation/resonance experiment at the Japan Proton Accelerator Research Complex, demonstrating its anticipated performance. Furthermore, we explored methods for estimating statistical uncertainty and investigated potential applications in analog-logic OR/AND gates. Overall, our findings reveal that the developed technique opens up avenues for the development of future non-binary logic circuits operating based on n-adic numbers.