Speaker
Description
The Liquid Xenon Time-Projection Chamber (LXe TPC) is a prominent technology for direct dark matter and neutrinoless double-beta decay searches. The next generation of LXe TPCs aims to increase their drift lengths while maintaining high operational electric fields in the hundreds of volts per centimeter. To achieve this goal, we need to gain a clearer understanding of how various engineered factors impact the risk of electrostatic discharge (ESD) when scaling up LXe TPCs. To explore this, we utilized the Xenon Breakdown Apparatus (XeBrA), a 5-liter spark chamber equipped with adjustable large-area electrodes and transparent viewports. This setup allows us to study the dominant factors contributing to ESD, such as pressure, stressed electrode area, or surface finish. In addition, we employ a system of two high-frame rate cameras to investigate the origin mechanism of ESD. In this talk, I will summarize the main results from our last data-acquisition campaign and discuss future run plans.
