A study of the trace 39Ar content in argon from deep underground sources

  title={A study of the trace 39Ar content in argon from deep underground sources},
  author={J. Xu and F. Calaprice and C. Galbiati and A. Goretti and G. Guray and T. Hohman and D. Holtz and A. Ianni and M. Laubenstein and B. Loer and C. Love and C. Martoff and D. Montanari and S. Mukhopadhyay and A. Nelson and S. Rountree and R. Vogelaar and A. Wright},
  journal={Astroparticle Physics},
Abstract The discovery of argon from deep underground sources with significantly less 39Ar than atmospheric argon was an important step in the development of direct dark matter detection experiments using argon as the active target. We report on the design and operation of a low-background single-phase liquid argon detector that was built to study the 39Ar content of this underground argon. Underground argon from the Kinder Morgan CO 2 plant in Cortez, Colorado was determined to have less than… Expand
Low energy neutron background in deep underground laboratories
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³⁹Ar/Ar measurements using ultra-low background proportional counters.
  • Jeter Hall, C. Aalseth, +6 authors A. Seifert
  • Environmental Science, Medicine
  • Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
  • 2016
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