Material radiopurity control in the XENONnT experiment

dc.citation.articleNumber599en_US
dc.citation.journalTitleThe European Physical Journal Cen_US
dc.citation.volumeNumber82en_US
dc.contributor.authorXENON Collaborationen_US
dc.date.accessioned2022-08-04T14:53:26Zen_US
dc.date.available2022-08-04T14:53:26Zen_US
dc.date.issued2022en_US
dc.description.abstractThe selection of low-radioactive construction materials is of the utmost importance for rare-event searches and thus critical to the XENONnT experiment. Results of an extensive radioassay program are reported, in which material samples have been screened with gamma-ray spectroscopy, mass spectrometry, and 222Rn emanation measurements. Furthermore, the cleanliness procedures applied to remove or mitigate surface contamination of detector materials are described. Screening results, used as inputs for a XENONnT Monte Carlo simulation, predict a reduction of materials background (∼17%) with respect to its predecessor XENON1T. Through radon emanation measurements, the expected 222Rn activity concentration in XENONnT is determined to be 4.2 (+0.5−0.7) μBq/kg, a factor three lower with respect to XENON1T. This radon concentration will be further suppressed by means of the novel radon distillation system.en_US
dc.identifier.citationXENON Collaboration. "Material radiopurity control in the XENONnT experiment." <i>The European Physical Journal C,</i> 82, (2022) Springer Nature: https://doi.org/10.1140/epjc/s10052-022-10345-6.en_US
dc.identifier.digitals10052-022-10345-6en_US
dc.identifier.doihttps://doi.org/10.1140/epjc/s10052-022-10345-6en_US
dc.identifier.urihttps://hdl.handle.net/1911/112980en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleMaterial radiopurity control in the XENONnT experimenten_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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