We present a detailed study of an 8-channel 1×1 mm2 WSi superconducting microwire single photon detector (SMSPD) array exposed to 120 GeV hadron beam and 120 GeV muon beam at the CERN Super Proton Synchrotron H6 beamline. Following up on our first detailed characterization of the efficiency and response of an SMSPD fabricated on a 3 nm WSi film, we report measurements of enhanced particle detection efficiency using a sensor fabricated from a thicker 4.7nm-thick WSi film. We also report the first SMSPD detection efficiency measurement made for muons. Measurements are enabled by a silicon tracking telescope providing 10 μm in-situ spatial resolution. The results show a fill factor-normalized detection efficiency of 75% and a time resolution of about 130 ps across pixels. These findings represent a significant advancement toward developing high-efficiency SMSPD charged particle tracking systems with simultaneous precision timing, with potential applications in future accelerator-based experiments such as the FCC-ee and Muon Collider.
@article{arxiv.2510.11725,
title = {Towards High-Efficiency Particle Detection Using Superconducting Microwire Arrays},
author = {Christina Wang and Cristián Peña and Adolf Bornheim and Shuoxing Wu and Alexander Albert and Thomas Sievert and Artur Apresyan and Emanuel Knehr and Boris Korzh and Jamie Luskin and Ludovico Mori and Sahil Patel and Guillermo Reales Gutiérrez and Manish Sahu and Ekkehart Schmidt and Matthew Shaw and Elise Sledge and Maria Spiropulu and Towsif Taher and Si Xie},
journal= {arXiv preprint arXiv:2510.11725},
year = {2026}
}
Comments
arXiv admin note: substantial text overlap with arXiv:2410.00251