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Creators/Authors contains: "Norman, L R"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Nature Communications)
    Abstract The imaging of individual Ba2+ions in high pressure xenon gas is one possible way to attain background-free sensitivity to neutrinoless double beta decay and hence establish the Majorana nature of the neutrino. In this paper we demonstrate selective single Ba2+ion imaging inside a high-pressure xenon gas environment. Ba2+ions chelated with molecular chemosensors are resolved at the gas-solid interface using a diffraction-limited imaging system with scan area of 1 × 1 cm2located inside 10 bar of xenon gas. This form of microscopy represents key ingredient in the development of barium tagging for neutrinoless double beta decay searches in136Xe. This also provides a new tool for studying the photophysics of fluorescent molecules and chemosensors at the solid-gas interface to enable bottom-up design of catalysts and sensors. 
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    Free, publicly-accessible full text available December 1, 2025