Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
Abstract
The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double beta decay. However, identification of one or a handful of decay events within a large mass of candidate isotope, without obfuscation by backgrounds is a formidable experimental challenge. One hypothetical method for achieving ultra- low-background neutrinoless double beta decay sensitivity is the detection of single 136Ba ions produced in the decay of 136Xe (“barium tagging”). To implement such a method, a single-ion-sensitive barium detector must be developed and demonstrated in bulk liquid or dry gaseous xenon. This paper reports on the development of two families of dry-phase barium chemosensor molecules for use in high pressure xenon gas detectors, synthesized specifically for this purpose. One particularly promising candidate, an anthracene substituted aza-18-crown-6 ether, is shown to respond in the dry phase with almost no intrinsic background from the unchelated state, and to be amenable to barium sensing through fluorescence microscopy. This interdisciplinary advance, paired with earlier work demonstrating sensitivity to single barium ions in solution, opens a new path toward singlemore »
- Authors:
-
- University of Texas at Arlington, Arlington, Texas (United States). Department of Physics; University of Texas at Arlington, Arlington, Texas (United States). Department of Chemistry and Biochemistry
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- University of Texas at Arlington, Arlington, Texas (United States). Department of Physics
- University of Texas at Arlington, Arlington, Texas (United States). Department of Chemistry and Biochemistry
- Publication Date:
- Research Org.:
- Univ. of Texas, Arlington, TX (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Univ. of Texas at Arlington, TX (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1624488
- Alternate Identifier(s):
- OSTI ID: 1863381; OSTI ID: 1908623
- Report Number(s):
- PNNL-SA-172091
Journal ID: ISSN 2045-2322; PII: 49283
- Grant/Contract Number:
- SC0019054; SC0019223; AC05-76RL01830
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; science & technology
Citation Formats
Thapa, P., Arnquist, Isaac J., Byrnes, N., Denisenko, A. A., Foss, Frank Wells, Jones, B. J. P., McDonald, Austin D., Nygren, David Robert, and Woodruff, Katherine. Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay. United States: N. p., 2019.
Web. doi:10.1038/s41598-019-49283-x.
Thapa, P., Arnquist, Isaac J., Byrnes, N., Denisenko, A. A., Foss, Frank Wells, Jones, B. J. P., McDonald, Austin D., Nygren, David Robert, & Woodruff, Katherine. Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay. United States. https://doi.org/10.1038/s41598-019-49283-x
Thapa, P., Arnquist, Isaac J., Byrnes, N., Denisenko, A. A., Foss, Frank Wells, Jones, B. J. P., McDonald, Austin D., Nygren, David Robert, and Woodruff, Katherine. Tue .
"Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay". United States. https://doi.org/10.1038/s41598-019-49283-x. https://www.osti.gov/servlets/purl/1624488.
@article{osti_1624488,
title = {Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay},
author = {Thapa, P. and Arnquist, Isaac J. and Byrnes, N. and Denisenko, A. A. and Foss, Frank Wells and Jones, B. J. P. and McDonald, Austin D. and Nygren, David Robert and Woodruff, Katherine},
abstractNote = {The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double beta decay. However, identification of one or a handful of decay events within a large mass of candidate isotope, without obfuscation by backgrounds is a formidable experimental challenge. One hypothetical method for achieving ultra- low-background neutrinoless double beta decay sensitivity is the detection of single 136Ba ions produced in the decay of 136Xe (“barium tagging”). To implement such a method, a single-ion-sensitive barium detector must be developed and demonstrated in bulk liquid or dry gaseous xenon. This paper reports on the development of two families of dry-phase barium chemosensor molecules for use in high pressure xenon gas detectors, synthesized specifically for this purpose. One particularly promising candidate, an anthracene substituted aza-18-crown-6 ether, is shown to respond in the dry phase with almost no intrinsic background from the unchelated state, and to be amenable to barium sensing through fluorescence microscopy. This interdisciplinary advance, paired with earlier work demonstrating sensitivity to single barium ions in solution, opens a new path toward single ion detection in high pressure xenon gas.},
doi = {10.1038/s41598-019-49283-x},
journal = {Scientific Reports},
number = 1,
volume = 9,
place = {United States},
year = {Tue Oct 22 00:00:00 EDT 2019},
month = {Tue Oct 22 00:00:00 EDT 2019}
}
Figures / Tables:
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Figures / Tables found in this record: