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Search: WFRF:(Conrad C. E.) > (2020-2024) > Rn-222 emanation me...

  • Aprile, E. (author)

Rn-222 emanation measurements for the XENON1T experiment

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • 2021-04-20
  • Springer Science and Business Media LLC,2021
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-194351
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-194351URI
  • https://doi.org/10.1140/epjc/s10052-020-08777-zDOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The selection of low-radioactive construction materials is of utmost importance for the success of lowenergy rare event search experiments. Besides radioactive contaminants in the bulk, the emanation of radioactive radon atoms from material surfaces attains increasing relevance in the effort to further reduce the background of such experiments. In this work, we present the 222Rn emanation measurements performed for the XENON1T dark matter experiment. Together with the bulk impurity screening campaign, the results enabled us to select the radio-purest construction materials, targeting a 222Rn activity concentration of 10 mu Bq/kg in 3.2 t of xenon. The knowledge of the distribution of the 222Rn sources allowed us to selectively eliminate problematic components in the course of the experiment. The predictions from the emanation measurements were compared to data of the 222Rn activity concentration in XENON1T. The final 222Rn activity concentration of (4.5 +/- 0.1) mu Bq/kg in the target of XENON1T is the lowest ever achieved in a xenon dark matter experiment.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Aalbers, JelleStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)jeaa8772 (author)
  • Antochi, Vasile C.Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)vaan4998 (author)
  • Barge, DerekStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)dbarg (author)
  • Bauermeister, BorisStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)bobau (author)
  • Conrad, JanStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)conrad (author)
  • Mahlstedt, JörnStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)jmahl (author)
  • Morå, KnutStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Columbia University, USA(Swepub:su)kdund (author)
  • Pelssers, BartStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)bpels (author)
  • Zopounidis, J. P. (author)
  • Stockholms universitetFysikum (creator_code:org_t)

Related titles

  • In:European Physical Journal C: Springer Science and Business Media LLC81:41434-60441434-6052

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