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SUMMARY:Understanding the impact of high voltage electrodes on low-energy 
 dark matter searches with the LZ dual phase xenon TPC
DTSTART;VALUE=DATE-TIME:20210916T150000Z
DTEND;VALUE=DATE-TIME:20210916T151500Z
DTSTAMP;VALUE=DATE-TIME:20260510T045645Z
UID:indico-contribution-59@indico.physics.ucsd.edu
DESCRIPTION:Speakers: Ryan Linehan ()\nTo observe signals from low-energy 
 nuclear recoils\, including WIMP-xenon scatters\, the LZ dark matter detec
 tor must maintain strong drift and extraction fields within its dual-phase
  xenon time projection chamber (TPC). These fields are established by a se
 t of four stainless steel wire mesh high voltage electrode grids that span
  the full width of the TPC. During operation at their design voltages\, th
 ese grids will achieve wire surface fields well above 20 kV/cm. These high
  fields can produce spurious charge signals and signals from real radioact
 ive decays with atypical light-to-charge ratios\, both of which can lead t
 o low-energy backgrounds in LZ science data. This talk will present studie
 s of possible grid contributions to electron backgrounds in the low-energy
  regime\, with a focus on two specific sources: field-induced emission and
  radiogenic emission.\n\nhttps://indico.physics.ucsd.edu/event/1/contribut
 ions/59/
LOCATION:
URL:https://indico.physics.ucsd.edu/event/1/contributions/59/
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