paper

Demonstration of a 25-picosecond single-photon time resolution with gaseous photomultiplication

arXiv:2302.12694 · doi:10.1016/j.nima.2023.168378

Abstract

Photosensitive gaseous detectors with a simple photoelectron multiplication mechanism of resistive plate chambers (RPCs) are expected to have both a large photocoverage and an excellent time resolution and to be low-cost. To demonstrate the time resolution of the RPC-based photodetectors, we built a prototype detector with a LaB $_{6}$ photocathode. It was tested with a picosecond pulse laser and the intrinsic time resolution for single photons was measured to be $25.0 \pm 1.1$ ps at a gain of $3.3 \times 1 0^{6}$ .

To be published in Nucl. Instrum. Meth. A