Mitigation of backgrounds from cosmogenic 137Xe in xenon gas experiments using 3He neutron capture
Entity
UAM. Departamento de Física TeóricaPublisher
IOP PublishingDate
2020-06-25Citation
10.1088/1361-6471/ab8915
Journal of Physics G: Nuclear and Particle Physics 47.7 (2020): 075001
ISSN
0954-3899 (print); 1361-6471 (online)DOI
10.1088/1361-6471/ab8915Funded by
The work described was supported by the Department of Energy under Award numbers DE-SC0019054 and DE-SC0019223. The NEXT Collaboration acknowledges support from the following agencies and institutions: the European Research Council (ERC) under the Advanced Grant 339787-NEXT; the European Union’s Framework Program for Research and Innovation Horizon 2020 (2014–2020) under the Marie Skłodowska-Curie Grant Agreements No. 674896, 690575 and 740055; the Ministerio de Economía y Competitividad of Spain under grants FIS2014-53371-C04, the Severo Ochoa Program SEV-2014-0398 and the María de Maetzu Program MDM-2016-0692; the GVA of Spain under grants PROMETEO/2016/120 and SEJI/2017/011; the Portuguese FCT under project PTDC/FISNUC/2525/2014, under project UID/FIS/04559/2013 to fund the activities of LIBPhys, and under grants PD/BD/105921/2014, SFRH/BPD/109180/2015 and SFRH/BPD/76842/2011. Finally, we are grateful to the Laboratorio Subterráneo de Canfranc for hosting and supporting the NEXT experimentProject
info:eu-repo/grantAgreement/EC/FP7/339787/EU//NEXT; info:eu-repo/grantAgreement/EC/H2020/674896/EU//ELUSIVES; info:eu-repo/grantAgreement/EC/H2020/690575/EU//InvisiblesPlus; info:eu-repo/grantAgreement/EC/H2020/740055/EU//MELODIC; Gobierno de España. FIS2014-53371-C04; Gobierno de España. SEV-2014-0398; Gobierno de España. MDM-2016-0692Editor's Version
https://doi.org/10.1088/1361-6471/ab8915Subjects
Gaseous Detectors; Scintillators; Scintillation and Light Emission Processes; Solid; Gas and Liquid Scintillators; FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiereThis is the Accepted Manuscript version of an article accepted for publication in Journal of Physics G: Nuclear and Particle Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1361-6471/ab8915
Rights
© 2020 IOP Publishing LtdAbstract
136Xe is used as the target medium for many experiments searching for 0νββ. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector materials. A potential background that is difficult to veto using muon tagging comes in the form of 137Xe created by the capture of neutrons on 136Xe. This isotope decays via beta decay with a half-life of 3.8 min and a Q β of ∼4.16 MeV. This work proposes and explores the concept of adding a small percentage of 3He to xenon as a means to capture thermal neutrons and reduce the number of activations in the detector volume. When using this technique we find the contamination from 137Xe activation can be reduced to negligible levels in tonne and multi-tonne scale high pressure gas xenon neutrinoless double beta decay experiments running at any depth in an underground laboratory
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Google Scholar:Rogers, L.
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Labarga Echeverría, Luis Alfonso
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NEXT collaboration
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