Development of a Hermetic Gaseous Xenon Detector for Suppressing External Radon Background

Ryuta Miyata, Koki Fujikawa, Rina Harata +3

Radon-induced backgrounds, particularly from ${}^{222}$Rn and its beta-emitting progeny, present a critical challenge for next-generation liquid xenon (LXe) detectors aimed at probin…