A chromatographic system for removal of radioactive 85Kr from xenon

A. I. Bolozdynya, P. P. Brusov*, T. Shutt, C. E. Dahl, J. Kwong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Extremely low count rates of useful events in detectors of neutrino or weakly interacting exotic particles require using detector working media with low levels of radioactive contaminants. Liquid xenon, highly purified and filtered using advanced semiconductor industry technologies serves as an attractive target for several modern experiments searching for cold dark matter, double beta decay, and detection of low energy neutrino. Separation of xenon from trace amounts of 85Kr cannot be achieved with commercially available gas purifiers. We have developed an automated system for purification of xenon from trace amounts of krypton. The system has been used to purify 25 kg of xenon to the level of < 3 ppt of krypton. The purified xenon will be used for the two-phase emission detector, XENON10, to search for WIMP dark matter in the Gran Sasso Underground Laboratory.

Original languageEnglish (US)
Pages (from-to)50-53
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - Aug 21 2007


  • Gas purification
  • Xenon experiment

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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