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Online Rn-222 removal by cryogenic distillation in the XENON100 experiment
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Number of Authors: 122
2017 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 77, no 6, 358Article in journal (Refereed) Published
Abstract [en]

We describe the purification of xenon from traces of the radioactive noble gas radon using a cryogenic distillation column. The distillation column was integrated into the gas purification loop of the XENON100 detector for online radon removal. This enabled us to significantly reduce the constant Rn-222 background originating from radon emanation. After inserting an auxiliary 222Rn emanation source in the gas loop, we determined a radon reduction factor of R > 27 (95% C.L.) for the distillation column by monitoring the Rn-222 activity concentration inside the XENON100 detector.

Place, publisher, year, edition, pages
2017. Vol. 77, no 6, 358
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-144648DOI: 10.1140/epjc/s10052-017-4902-xISI: 000402676000001OAI: oai:DiVA.org:su-144648DiVA: diva2:1115979
Available from: 2017-06-27 Created: 2017-06-27 Last updated: 2017-06-27Bibliographically approved

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Bauermeister, BorisCalvén, JakobConrad, JanFerella, Alfredo D.Pelssers, Bart
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