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Physics > Instrumentation and Detectors

arXiv:1605.03844 (physics)
[Submitted on 12 May 2016 (v1), last revised 27 Oct 2017 (this version, v2)]

Title:Chromatographic separation of radioactive noble gases from xenon

Authors: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, A.St.J. 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
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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 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.
Comments: Accepted in Astropart. Phys
Subjects: Instrumentation and Detectors (physics.ins-det)
Cite as: arXiv:1605.03844 [physics.ins-det]
  (or arXiv:1605.03844v2 [physics.ins-det] for this version)
  https://doi.org/10.48550/arXiv.1605.03844
Related DOI: https://doi.org/10.1016/j.astropartphys.2017.10.014

Submission history

From: Chang Lee [view email]
[v1] Thu, 12 May 2016 14:49:15 UTC (219 KB)
[v2] Fri, 27 Oct 2017 00:46:08 UTC (213 KB)
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