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Chromatographic separation of radioactive noble gases from xenon

  • LUX Collaboration
  • , D. S. Akerib
  • , H. M. Araújo
  • , X. Bai
  • , A. J. Bailey
  • , J. Balajthy
  • , P. Beltrame
  • , E. P. Bernard
  • , A. Bernstein
  • , T. P. Biesiadzinski
  • , E. M. Boulton
  • , R. Bramante
  • , S. B. Cahn
  • , M. C. Carmona-Benitez
  • , C. Chan
  • , A. A. Chiller
  • , C. Chiller
  • , T. Coffey
  • , A. Currie
  • , J. E. Cutter
  • T. J. R. Davison, A. Dobi, J. E. Y. Dobson, E. Druszkiewicz, B. N. Edwards, C. H. Faham, S. Fiorucci, R. J. Gaitskell, V. M. Gehman, C. Ghag, K. R. Gibson, M. G. D. Gilchriese, C. R. Hall, M. Hanhardt, S. J. Haselschwardt, S. A. Hertel, D. P. Hogan, M. Horn, D. Q. Huang, C. M. Ignarra, M. Ihm, R. G. Jacobsen, W. Ji, K. Kamdin, K. Kazkaz, D. Khaitan, R. Knoche, N. A. Larsen, C. Lee, B. G. Lenardo, K. T. Lesko, A. Lindote, M. I. Lopes, A. Manalaysay, R. L. Mannino, M. F. Marzioni, D. N. McKinsey, D. -M. Mei, J. Mock, M. Moongweluwan, J. A. Morad, Alexander Murphy, C. Nehrkorn, H. N. Nelson, F. Neves, K. O'Sullivan, K. C. Oliver-Mallory, K. J. Palladino, E. K. Pease, K. Pech, P. Phelps, L. Reichhart, C. Rhyne, S. Shaw, T. A. Shutt, C. Silva, V. N. Solovov, P. Sorensen, S. Stephenson, T. J. Sumner, M. Szydagis, D. J. Taylor, W. Taylor, B. P. Tennyson, P. A. Terman, D. R. Tiedt, W. H. To, M. Tripathi, L. Tvrznikova, S. Uvarov, J. R. Verbus, R. C. Webb, J. T. White, T. J. Whitis, M. S. Witherell, F. L. H. Wolfs, K. Yazdani, S. K. Young, C. Zhang

Research output: Contribution to journal › Article › peer-review

Abstract

The Large Underground Xenon (LUX) experiment operates at the Sanford Underground Research Facility to detect nuclear recoils from the hypothetical Weakly Interacting Massive Particles (WIMPs) on a liquid xenon target. Liquid xenon typically contains trace amounts of the noble radioactive isotopes $^{85}$Kr and $^{39}$Ar that are not removed by the {\em in situ} gas purification system. The decays of these isotopes at concentrations typical of research-grade xenon would be a dominant background for a WIMP search exmperiment. To remove these impurities from the liquid xenon, a chromatographic separation system based on adsorption on activated charcoal was built. 400\,kg of xenon was processed, reducing the average concentration of krypton from 130\,ppb to 3.5\,ppt as measured by a cold-trap assisted mass spectroscopy system. A 50 kg batch spiked to 0.001 g/g of krypton was processed twice and reduced to an upper limit of 0.2 ppt.
Original languageEnglish
Pages (from-to)80-87
JournalAstroparticle Physics
Volume97
Early online date31 Oct 2017
DOIs
Publication statusPublished - Jan 2018

Keywords / Materials (for Non-textual outputs)

  • physics.ins-det

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