An experimental setup is being developed to extract Ba ions from a high-pressure Xe gas environment. It aims to transport Ba ions from 10 bar Xe to vacuum conditions. The setup utilizes a converging-diverging nozzle in combination with a radio-frequency (RF) funnel to move Ba ions into vacuum through the pressure drop of several orders of magnitude. This technique is intended to be used in a future multi-ton detector investigating double-beta decay in 136Xe. Efficient extraction and detection of Ba ions, the decay product of Xe, would allow for a background-free measurement of the 136Xe double-beta decay.
@article{arxiv.1302.6940,
title = {Ba-ion extraction from a high pressure Xe gas for double-beta decay studies with EXO},
author = {T. Brunner and D. Fudenberg and A. Sabourov and V. L. Varentsov and G. Gratta and D. Sinclair},
journal= {arXiv preprint arXiv:1302.6940},
year = {2019}
}