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.
@article{arxiv.2406.06854,
title = {Current-readout technique for ultra-high-rate experiments},
author = {Maki Wakata and Shoei Akamatsu and Takuhiro Fujiie and Taisei Furuyama and Lisa Hara and Yumi Ishikawa and Tadashi Ito and Takahiro Kikuchi and Tsutomu Mibe and Sachi Ozaki and Mitsuhiko Yokomizo and Jiro Murata},
journal= {arXiv preprint arXiv:2406.06854},
year = {2025}
}