Speaker
Brian Mong
(SLAC)
Description
nEXO plans to search for $0\nu\beta\beta$ decay of $^{136}Xe$ with a sensitivity of $1.35\times 10^{28}~\text{yrs}$ using a liquid xenon time projection chamber. The experiment is expected to contain $5000~\text{kg}$ of xenon, and our goal is $< 1.2~\mathrm{mBq}$ $^{222}Rn$ in that system, responsible for 48% of the overall background budget. All xenon wetted components will be assayed to meet this goal, requiring sensitive Rn Assay instruments. I will discuss the performance of new Rn assay instruments built at SLAC that will be used to perform many of these assays.
Primary author
Brian Mong
(SLAC)
