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SUMMARY:The LZ Krypton Removal Chromatography System
DTSTART;VALUE=DATE-TIME:20210917T180000Z
DTEND;VALUE=DATE-TIME:20210917T181500Z
DTSTAMP;VALUE=DATE-TIME:20261017T124019Z
UID:indico-contribution-82@indico.physics.ucsd.edu
DESCRIPTION:Speakers: Andrew Ames (SLAC\, Stanford University)\nTrace radi
 oactive noble gases are a source of electron recoil backgrounds in liquid 
 xenon dark matter experiments\, and cannot be mitigated by self-shielding.
  Naturally occurring krypton\, which contains trace amounts of the beta em
 itter krypton-85\, is found in commercially available research-grade xenon
  at a level of 1-100 parts-per-billion. In the LZ dark matter experiment\,
  we require the xenon in the detector to contain no more than 300 parts pe
 r quadrillion krypton. This limit reduces the rate of electron recoil even
 ts from krypton-85 to be comparable to the solar neutrino contribution. To
  achieve this\, krypton is removed from the xenon using gas charcoal chrom
 atography prior to its deployment in the detector. In this talk\, I will p
 resent an overview of the krypton removal chromatography system\, which wa
 s designed\, built and operated by LZ at SLAC.\n\nhttps://indico.physics.u
 csd.edu/event/1/contributions/82/
LOCATION:
URL:https://indico.physics.ucsd.edu/event/1/contributions/82/
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