Speaker
Description
Future liquid xenon (LXe) low background experiments such as those searching for dark matter or neutrinoless double beta decay will have to grapple with Rn-222 and its decay chain products as a significant background. Promising results in gas phase chromatography measurements indicated that liquid phase chromatography using synthetic charcoal could be a viable strategy for Rn removal from LXe. These results led to the creation of the Removal of Liquid Impurities via Chromatography (ReLIC) program at SLAC National Accelerator Lab. The ReLIC program is focused on determining the feasibility and performance of a phase swing chromatography system to remove Rn-222 from LXe at scale. In this talk, I will present novel measurements of the properties of synthetic charcoal and silver exchange zeolite as chromatographic media for such a system, and what these measurements mean for the feasibility of the phase swing system.