A linear RFQ ion trap for the Enriched Xenon Observatory

B. Flatt , M. Green , J. Wodin , R. DeVoe , P. Fierlinger , G. Gratta , F. LePort , M. Montero Diez

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R. Neilson K. OSullivan A. Pocar S. Waldman E. Baussan M. Breidenbach R. Conley W. Fairbank Jr. J. Farine C. Hall K. Hall D. Hallman C. Hargrove M. Hauger J. Hodgson F. Juget D.S. Leonard D. Mackay Y. Martin B. Mong A. Odian L. Ounalli A. Piepke C.Y. Prescott P.C. Rowson K. Skarpass D. Schenker D. Sinclair V. Strickland C. Virtue J.-L. Vuilleuimier J.-M. Vuilleuimier K. Wamba P. Weber

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classification ⚛️ physics.ins-det

keywords decaytrapcandidatedescribeddouble-betaenrichedlinearobservatory

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The design, construction, and performance of a linear radio-frequency ion trap (RFQ) intended for use in the Enriched Xenon Observatory (EXO) are described. EXO aims to detect the neutrinoless double-beta decay of $^{136}$Xe to $^{136}$Ba. To suppress possible backgrounds EXO will complement the measurement of decay energy and, to some extent, topology of candidate events in a Xe filled detector with the identification of the daughter nucleus ($^{136}$Ba). The ion trap described here is capable of accepting, cooling, and confining individual Ba ions extracted from the site of the candidate double-beta decay event. A single trapped ion can then be identified, with a large signal-to-noise ratio, via laser spectroscopy.

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A linear RFQ ion trap for the Enriched Xenon Observatory

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