Timing performance of large prototype based on $\upmu$RWELL- PICOSEC detector technology with $10 \times 10\ \mathrm{cm}^{2}$ active area

TL;DR

This paper reports on the timing performance of a large $ ext{cm}^2$ prototype of the $ ext{mu}$RWELL-PICOSEC detector, achieving timing resolutions around 50 ps in beam tests, demonstrating its potential for fast timing applications.

Contribution

The study presents the first large-area $ ext{cm}^2$ prototype of the $ ext{mu}$RWELL-PICOSEC detector with measured timing resolutions near 50 ps, showcasing its suitability for TOF applications.

Findings

Achieved timing resolutions of approximately 48 ps and 52 ps on two detector pads.

Demonstrated the detector's fast timing capability with a 150 GeV/c muon beam.

Validated the large-area prototype performance for potential practical applications.

Abstract

The $\upmu$RWELL-PICOSEC detector, which combines a $\upmu$RWELL gaseous amplification structure with a Cherenkov radiator and photocathode, is a novel approach to acheive fast and precise timing in gaseous detectors. With timing precision at the level of tens of picoseconds, this technology is particularly suited for time-of-flight (TOF) applications in particle physics and potentially medical imaging. Beam tests with a 150~GeV/$c$ muon beam have been carried out on a large-area (10~$\times$~10~cm$^{2}$) prototype equipped with a cesium iodide (CsI) photocathode. Using an oscilloscope-based single-channel readout, timing measurements on two individual pads of the detector have yielded resolutions of $\approx$ 48 ps and $\approx$ 52 ps under different biasing conditions respectively.