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Journal Article

Online 222Rn removal by cryogenic distillation in the XENON100 experiment

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Cichon,  Dominick
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Lindner,  M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., et al. (2017). Online 222Rn removal by cryogenic distillation in the XENON100 experiment. European Physical Journal C, 77(6): 358. doi:10.1140/epjc/s10052-017-4902-x.


Cite as: https://hdl.handle.net/21.11116/0000-0001-1B69-C
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 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.