Material radiopurity control in the XENONnT experiment

XENON Collaboration

doi:10.1140/epjc/s10052-022-10345-6

Material radiopurity control in the XENONnT experiment

XENON Collaboration

Physics

Research output: Contribution to journal › Article › peer-review

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 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 (-0.7+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.

Original language	English (US)
Article number	599
Journal	European Physical Journal C
Volume	82
Issue number	7
DOIs	https://doi.org/10.1140/epjc/s10052-022-10345-6
State	Published - Jul 2022

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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10.1140/epjc/s10052-022-10345-6

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@article{31d0833843e94a60871bca56eb0221aa,

title = "Material radiopurity control in the XENONnT experiment",

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 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 (-0.7+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.",

author = "{XENON Collaboration} and E. Aprile and K. Abe and F. Agostini and {Ahmed Maouloud}, S. and M. Alfonsi and L. Althueser and E. Angelino and Angevaare, {J. R.} and Antochi, {V. C.} and {Ant{\'o}n Martin}, D. and F. Arneodo and L. Baudis and Baxter, {A. L.} and L. Bellagamba and R. Biondi and A. Bismark and A. Brown and S. Bruenner and G. Bruno and R. Budnik and C. Capelli and Cardoso, {J. M.R.} and D. Cichon and B. Cimmino and M. Clark and Colijn, {A. P.} and J. Conrad and Cuenca-Garc{\'i}a, {J. J.} and Cussonneau, {J. P.} and V. D{\textquoteright}Andrea and Decowski, {M. P.} and Gangi, {P. Di} and Pede, {S. Di} and Giovanni, {A. Di} and Stefano, {R. Di} and S. Diglio and A. Elykov and S. Farrell and Ferella, {A. D.} and H. Fischer and W. Fulgione and P. Gaemers and R. Gaior and M. Galloway and F. Gao and R. Glade-Beucke and L. Grandi and J. Grigat and A. Higuera and C. Hils",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = jul,

doi = "10.1140/epjc/s10052-022-10345-6",

language = "English (US)",

volume = "82",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "7",

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T1 - Material radiopurity control in the XENONnT experiment

AU - XENON Collaboration

AU - Aprile, E.

AU - Abe, K.

AU - Agostini, F.

AU - Ahmed Maouloud, S.

AU - Alfonsi, M.

AU - Althueser, L.

AU - Angelino, E.

AU - Angevaare, J. R.

AU - Antochi, V. C.

AU - Antón Martin, D.

AU - Arneodo, F.

AU - Baudis, L.

AU - Baxter, A. L.

AU - Bellagamba, L.

AU - Biondi, R.

AU - Bismark, A.

AU - Brown, A.

AU - Bruenner, S.

AU - Bruno, G.

AU - Budnik, R.

AU - Capelli, C.

AU - Cardoso, J. M.R.

AU - Cichon, D.

AU - Cimmino, B.

AU - Clark, M.

AU - Colijn, A. P.

AU - Conrad, J.

AU - Cuenca-García, J. J.

AU - Cussonneau, J. P.

AU - D’Andrea, V.

AU - Decowski, M. P.

AU - Gangi, P. Di

AU - Pede, S. Di

AU - Giovanni, A. Di

AU - Stefano, R. Di

AU - Diglio, S.

AU - Elykov, A.

AU - Farrell, S.

AU - Ferella, A. D.

AU - Fischer, H.

AU - Fulgione, W.

AU - Gaemers, P.

AU - Gaior, R.

AU - Galloway, M.

AU - Gao, F.

AU - Glade-Beucke, R.

AU - Grandi, L.

AU - Grigat, J.

AU - Higuera, A.

AU - Hils, C.

PY - 2022/7

Y1 - 2022/7

N2 - 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 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 (-0.7+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.

AB - 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 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 (-0.7+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.

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U2 - 10.1140/epjc/s10052-022-10345-6

DO - 10.1140/epjc/s10052-022-10345-6

M3 - Article

AN - SCOPUS:85134014988

SN - 1434-6044

VL - 82

JO - European Physical Journal C

JF - European Physical Journal C

IS - 7

M1 - 599

ER -

Material radiopurity control in the XENONnT experiment

Abstract

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