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dc.contributor.advisorFairbank, William M.
dc.contributor.authorWalton, Timothy
dc.contributor.committeememberBerger, Bruce
dc.contributor.committeememberVan Orden, Alan
dc.contributor.committeememberWilson, Robert
dc.date.accessioned2016-07-12T23:03:11Z
dc.date.available2016-07-12T23:03:11Z
dc.date.issued2016
dc.description2016 Spring.
dc.descriptionIncludes bibliographical references.
dc.description.abstractThe nEXO experiment will search for neutrinoless double beta decay of the isotope 136Xe in a ton-scale liquid xenon time projection chamber, in order to probe the Majorana nature of neutrinos. Detecting the daughter 136Ba of double beta decay events, called barium tagging, is a technique under investigation which would provide a veto for a background-free measurement. This would involve detecting a single barium ion from within a macroscopic volume of liquid xenon. One proposed barium tagging method is to trap the barium ion in solid xenon at the end of a cold probe, and then detect it by its fluorescence in the solid xenon. In this thesis, new studies on the spectroscopy of deposits of Ba and Ba+ in solid xenon are presented. Imaging of barium atoms in solid xenon is demonstrated with sensitivity down to the single atom level. Achievement of this level of sensitivity is a major step toward barium tagging by this method.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierWalton_colostate_0053A_13458.pdf
dc.identifier.urihttp://hdl.handle.net/10217/173350
dc.languageEnglish
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019 - CSU Theses and Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectmatrix isolation
dc.subjecttagging
dc.subjectbarium
dc.subjectxenon
dc.subjectspectroscopy
dc.titleImaging single barium atoms in solid xenon for barium tagging in the nEXO neutrinoless double beta decay experiment
dc.typeText
dcterms.rights.dplaThe copyright and related rights status of this Item has not been evaluated (https://rightsstatements.org/vocab/CNE/1.0/). Please refer to the organization that has made the Item available for more information.
thesis.degree.disciplinePhysics
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)


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