Barium Tagging in High Pressure Xenon Gas

16 Jul 2019, 11:00
Ball Room (McGill University)

Ball Room

McGill University

Thomson House 3650 McTavish Montreal, Quebec, H3A 1Y2 Canada


Dr Ben Jones (UTA)


The identification of a single barium ion in coincidence with an energy deposit measured with a precision of 1% in xenon is widely recognized as an unambiguous signature of neutrinoless double beta decay. The detection of single ions in tons of gas or liquid xenon, however, is a major experimental challenge. In this talk I will discuss barium tagging methodologies based on single molecule fluorescence imaging adapted to high pressure xenon gas time projection chambers. Recent advances in ion sensing chemistry and gas phase microscopy will be presented, followed by a discussion of the subsequent R&D steps planned by the NEXT collaboration to enable an ultra-low background, barium tagging neutrinoless double beta decay technology.

Primary author

Dr Ben Jones (UTA)

Presentation Materials

Your browser is out of date!

Update your browser to view this website correctly. Update my browser now