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Chromatographic separation of radioactive noble gases from xenon

机译：来自氙的放射性惰性气体的色谱分离

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摘要

AbstractThe 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 isotopes85Kr and39Ar that are not removed by thein situgas purification system. The decays of these isotopes at concentrations typical of research-grade xenon would be a dominant background for a WIMP search experiment. 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.]]>
机译：<！[cdata [ 抽象 大型地下氙气（LUX）实验在桑福德地下研究设施中运营，从假设弱互动的大规模粒子（WIMPS）上检测核反冲液体氙气目标。液体氙通常含有痕量的贵荷量放射性同位素 85 kr和 39 ar 原位气体净化系统不删除。这些同位素的诸如研究级氙的浓度的衰减将是WIMP搜索实验的主要背景。为了从液体氙中除去这些杂质，构建了基于活性炭的吸附的色谱分离系统。加工400 kg的氙，将氪至3.5μppp的平均浓度降低到3.5〜3.5°PPT。通过冷阱辅助质谱系统测量。将50kg批量掺入0.001g / g氪氪，并减少到0.2 ppt的上限。 ]]>

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  • 来源
    《Astroparticle physics》 |2018年第2018期|共8页
  • 作者

    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;

  • 作者单位

    Case Western Reserve University Dept. of Physics;

    Imperial College London High Energy Physics Blackett Laboratory;

    South Dakota School of Mines and Technology 501 East St Joseph St.;

    Imperial College London High Energy Physics Blackett Laboratory;

    University of Maryland Dept. of Physics;

    SUPA School of Physics and Astronomy University of Edinburgh;

    Yale University Dept. of Physics;

    Lawrence Livermore National Laboratory;

    Case Western Reserve University Dept. of Physics;

    Yale University Dept. of Physics;

    Case Western Reserve University Dept. of Physics;

    Yale University Dept. of Physics;

    University of California Santa Barbara Dept. of Physics;

    Brown University Dept. of Physics;

    University of South Dakota Dept. of Physics;

    University of South Dakota Dept. of Physics;

    Case Western Reserve University Dept. of Physics;

    Imperial College London High Energy Physics Blackett Laboratory;

    University of California Davis Dept. of Physics;

    SUPA School of Physics and Astronomy University of Edinburgh;

    Lawrence Berkeley National Laboratory;

    Department of Physics and Astronomy University College London;

    University of Rochester Dept. of Physics and Astronomy;

    Yale University Dept. of Physics;

    Lawrence Berkeley National Laboratory;

    Brown University Dept. of Physics;

    Brown University Dept. of Physics;

    Lawrence Berkeley National Laboratory;

    Department of Physics and Astronomy University College London;

    Case Western Reserve University Dept. of Physics;

    Lawrence Berkeley National Laboratory;

    University of Maryland Dept. of Physics;

    South Dakota School of Mines and Technology 501 East St Joseph St.;

    University of California Santa Barbara Dept. of Physics;

    Yale University Dept. of Physics;

    University of California Berkeley Department of Physics;

    Yale University Dept. of Physics;

    Brown University Dept. of Physics;

    SLAC National Accelerator Laboratory;

    University of California Berkeley Department of Physics;

    University of California Berkeley Department of Physics;

    Case Western Reserve University Dept. of Physics;

    University of California Berkeley Department of Physics;

    Lawrence Livermore National Laboratory;

    University of Rochester Dept. of Physics and Astronomy;

    University of Maryland Dept. of Physics;

    Yale University Dept. of Physics;

    Case Western Reserve University Dept. of Physics;

    Lawrence Livermore National Laboratory;

    Lawrence Berkeley National Laboratory;

    LIP-Coimbra Department of Physics University of Coimbra;

    LIP-Coimbra Department of Physics University of Coimbra;

    University of California Davis Dept. of Physics;

    Texas A &

    M University Dept. of Physics;

    SUPA School of Physics and Astronomy University of Edinburgh;

    Yale University Dept. of Physics;

    University of South Dakota Dept. of Physics;

    University of California Davis Dept. of Physics;

    University of Rochester Dept. of Physics and Astronomy;

    University of California Davis Dept. of Physics;

    SUPA School of Physics and Astronomy University of Edinburgh;

    University of California Santa Barbara Dept. of Physics;

    University of California Santa Barbara Dept. of Physics;

    LIP-Coimbra Department of Physics University of Coimbra;

    Yale University Dept. of Physics;

    University of California Berkeley Department of Physics;

    SLAC National Accelerator Laboratory;

    Yale University Dept. of Physics;

    Case Western Reserve University Dept. of Physics;

    Case Western Reserve University Dept. of Physics;

    Department of Physics and Astronomy University College London;

    Brown University Dept. of Physics;

    Department of Physics and Astronomy University College London;

    Case Western Reserve University Dept. of Physics;

    LIP-Coimbra Department of Physics University of Coimbra;

    LIP-Coimbra Department of Physics University of Coimbra;

    Lawrence Berkeley National Laboratory;

    University of California Davis Dept. of Physics;

    Imperial College London High Energy Physics Blackett Laboratory;

    University at Albany State University of New York Department of Physics;

    South Dakota Science and Technology Authority Sanford Underground Research Facility;

    Brown University Dept. of Physics;

    Yale University Dept. of Physics;

    Texas A &

    M University Dept. of Physics;

    South Dakota School of Mines and Technology 501 East St Joseph St.;

    Case Western Reserve University Dept. of Physics;

    University of California Davis Dept. of Physics;

    Yale University Dept. of Physics;

    University of California Davis Dept. of Physics;

    Brown University Dept. of Physics;

    Texas A &

    M University Dept. of Physics;

    Texas A &

    M University Dept. of Physics;

    Case Western Reserve University Dept. of Physics;

    University of California Santa Barbara Dept. of Physics;

    University of Rochester Dept. of Physics and Astronomy;

    Imperial College London High Energy Physics Blackett Laboratory;

    University at Albany State University of New York Department of Physics;

    University of South Dakota Dept. of Physics;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高能物理学;
  • 关键词

    Xenon; Krypton; Adsorption; Chromatography; Gas Separation; Dark Matter;

    机译：氙气;氪;吸附;色谱;气体分离;暗物质;

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