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Online $^{222}Rn$ removal by cryogenic distillation in the XENON100 experiment


XENON Collaboration; Baudis, Laura; Brown, Adam; Capelli, Chiara; Galloway, Michelle; Kazama, Shingo; Kish, Alexander; Piastra, Francesco; Reichard, Shayne; Wulf, Julien; et al (2017). Online $^{222}Rn$ removal by cryogenic distillation in the XENON100 experiment. European Physical Journal C - Particles and Fields, C77(6):358.

Abstract

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 $^{222}Rn$ background originating from radon emanation. After inserting an auxiliary $^{222}Rn$ 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 $^{222}Rn$ activity concentration inside the XENON100 detector.

Abstract

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 $^{222}Rn$ background originating from radon emanation. After inserting an auxiliary $^{222}Rn$ 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 $^{222}Rn$ activity concentration inside the XENON100 detector.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:12 Feb 2018 16:22
Last Modified:31 Jul 2018 04:47
Publisher:Springer
ISSN:1434-6044
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1140/epjc/s10052-017-4902-x

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