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SUMMARY:Preliminary Tests of Dual-Phase Xenon-Doped Argon Mixtures in the 
 CHILLAX Detector
DTSTART;VALUE=DATE-TIME:20210915T153000Z
DTEND;VALUE=DATE-TIME:20210915T154500Z
DTSTAMP;VALUE=DATE-TIME:20260909T030807Z
UID:indico-contribution-41@indico.physics.ucsd.edu
DESCRIPTION:Speakers: Ethan Bernard (Lawrence Livermore National Laborator
 y)\nUtilizing xenon as a dopant at the $10^{-5}$ level in the gas region o
 f a dual-phase argon time projection chamber (TPC) presents the enticing p
 rospects of faster and longer wavelength electroluminescence response to i
 onization electrons. This light can then be directly detected by UV-sensit
 ive SiPMs without the use of fluorescent wavelength-shifting materials. Th
 ese advantages would improve sensitivity to low energy nuclear recoils\, w
 hich kinetically favor argon over xenon\; examples include coherent neutri
 no-nucleus scattering (CENNS)\, and the possibility of light WIMP dark mat
 ter interactions. However\, operating such a detector imposes the novel te
 chnical requirement of cryogenic systems which must prevent xenon from par
 titioning between the liquid and gas phases. This has compelled the develo
 pment of CoHerent Ionization Limits in Liquid Argon and Xenon (CHILLAX)\, 
 a new xenon-doped\, dual-phase argon detector. This talk will survey the p
 hysics implications of xenon-doped argon TPCs\, and describe the special c
 ooling and circulation systems in CHILLAX. It will conclude with an overvi
 ew of the current status of the detector and recent cryogenic tests perfor
 med..\n\nPrepared by LLNL under Contract DE-AC52-07NA27344. Release number
  LLNL-ABS-824388. The SCGSR program is administered by ORISE under Contrac
 t DE-SC0014664.\n\nhttps://indico.physics.ucsd.edu/event/1/contributions/4
 1/
LOCATION:
URL:https://indico.physics.ucsd.edu/event/1/contributions/41/
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