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Material radiopurity control in the XENONnT experiment.
Aprile, E; Abe, K; Agostini, F; Ahmed Maouloud, S; Alfonsi, M; Althueser, L; Angelino, E; Angevaare, J R; Antochi, V C; Antón Martin, D; Arneodo, F; Baudis, L; Baxter, A L; Bellagamba, L; Biondi, R; Bismark, A; Brown, A; Bruenner, S; Bruno, G; Budnik, R; Capelli, C; Cardoso, J M R; Cichon, D; Cimmino, B; Clark, M; Colijn, A P; Conrad, J; Cuenca-García, J J; Cussonneau, J P; D'Andrea, V; Decowski, M P; Gangi, P Di; Pede, S Di; Giovanni, A Di; Stefano, R Di; Diglio, S; Elykov, A; Farrell, S; Ferella, A D; Fischer, H; Fulgione, W; Gaemers, P; Gaior, R; Galloway, M; Gao, F; Glade-Beucke, R; Grandi, L; Grigat, J; Higuera, A; Hils, C.
Affiliation
  • Aprile E; Physics Department, Columbia University, New York, NY 10027 USA.
  • Abe K; Kamioka Observatory, Institute for Cosmic Ray Research, and Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Higashi-Mozumi, Kamioka Hida, Gifu 506-1205 Japan.
  • Agostini F; Department of Physics and Astronomy, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
  • Ahmed Maouloud S; LPNHE, Sorbonne Université, Université de Paris, CNRS/IN2P3, 75005 Paris, France.
  • Alfonsi M; Institut für Physik & Exzellenzcluster PRISMA+, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
  • Althueser L; Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany.
  • Angelino E; INAF-Astrophysical Observatory of Torino, Department of Physics, University of Torino and INFN-Torino, 10125 Turin, Italy.
  • Angevaare JR; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Antochi VC; Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, 10691 Stockholm, Sweden.
  • Antón Martin D; Department of Physics and Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637 USA.
  • Arneodo F; Particle and Planetary Physics, New York University Abu Dhabi-Center for Astro, Abu Dhabi, United Arab Emirates.
  • Baudis L; Physik-Institut, University of Zürich, 8057 Zurich, Switzerland.
  • Baxter AL; Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907 USA.
  • Bellagamba L; Department of Physics and Astronomy, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
  • Biondi R; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Bismark A; Physik-Institut, University of Zürich, 8057 Zurich, Switzerland.
  • Brown A; Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
  • Bruenner S; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Bruno G; Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
  • Budnik R; Particle and Planetary Physics, New York University Abu Dhabi-Center for Astro, Abu Dhabi, United Arab Emirates.
  • Capelli C; SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes, 44307 Nantes, France.
  • Cardoso JMR; Department of Particle Physics and Astrophysics, Weizmann Institute of Science, 7610001 Rehovot, Israel.
  • Cichon D; Physik-Institut, University of Zürich, 8057 Zurich, Switzerland.
  • Cimmino B; LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
  • Clark M; Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
  • Colijn AP; Department of Physics "Ettore Pancini", University of Napoli and INFN-Napoli, 80126 Naples, Italy.
  • Conrad J; Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907 USA.
  • Cuenca-García JJ; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Cussonneau JP; Institute for Subatomic Physics, Utrecht University, Utrecht, The Netherlands.
  • D'Andrea V; Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, 10691 Stockholm, Sweden.
  • Decowski MP; Institute for Astroparticle Physics, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany.
  • Gangi PD; SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes, 44307 Nantes, France.
  • Pede SD; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Giovanni AD; Department of Physics and Chemistry, University of L'Aquila, 67100 L'Aquila, Italy.
  • Stefano RD; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Diglio S; Department of Physics and Astronomy, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
  • Elykov A; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Farrell S; Particle and Planetary Physics, New York University Abu Dhabi-Center for Astro, Abu Dhabi, United Arab Emirates.
  • Ferella AD; Department of Physics "Ettore Pancini", University of Napoli and INFN-Napoli, 80126 Naples, Italy.
  • Fischer H; SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes, 44307 Nantes, France.
  • Fulgione W; Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
  • Gaemers P; Department of Physics and Astronomy, Rice University, Houston, TX 77005 USA.
  • Gaior R; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Galloway M; Department of Physics and Chemistry, University of L'Aquila, 67100 L'Aquila, Italy.
  • Gao F; Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
  • Glade-Beucke R; INAF-Astrophysical Observatory of Torino, Department of Physics, University of Torino and INFN-Torino, 10125 Turin, Italy.
  • Grandi L; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Grigat J; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Higuera A; LPNHE, Sorbonne Université, Université de Paris, CNRS/IN2P3, 75005 Paris, France.
  • Hils C; Physik-Institut, University of Zürich, 8057 Zurich, Switzerland.
Eur Phys J C Part Fields ; 82(7): 599, 2022.
Article de En | MEDLINE | ID: mdl-35821975
ABSTRACT
The 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 222 Rn 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 222 Rn activity concentration in XENONnT is determined to be 4.2 ( - 0.7 + 0.5 )  µ Bq/kg, a factor three lower with respect to XENON1T. This radon concentration will be further suppressed by means of the novel radon distillation system.

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Type d'étude: Prognostic_studies Langue: En Journal: Eur Phys J C Part Fields Année: 2022 Type de document: Article

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Type d'étude: Prognostic_studies Langue: En Journal: Eur Phys J C Part Fields Année: 2022 Type de document: Article
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