As liquid xenon time projection chambers scale to ever-larger sizes, so too do the engineering challenges they pose. We describe a large, flexible, multipurpose test facility capable of supporting the development of a number of key aspects of liquid xenon detector systems. Example applications of this facility include characterization of large-area light and charge sensor arrays, tests of xenon purification techniques and materials compatibility, and investigations into high-voltage phenomena. This facility uses an automated and remotely monitored cryo-cooling system based on immersion of the test chamber in a liquid bath rather than conductive coupling, leading to advantages in temperature and pressure stability, as well as increasing required response times in the case of cooling-power loss. Design advantages, operational procedures, and performance of the facility are described, as well as five examples of liquid xenon test chambers that use the facility.
@article{arxiv.2508.05853,
title = {A flexible test facility for liquid xenon detector development},
author = {Evan Angelico and Jacopo Dalmasson and Ralph DeVoe and Giorgio Gratta and Clarke A. Hardy and Brian Lenardo and Lin Si and Marie Vidal and Shuoxing Wu},
journal= {arXiv preprint arXiv:2508.05853},
year = {2025}
}