Status of the EXO-200 Experiment

Tim Daniels, Michelle Dolinski, Kevin O'Sullivan, Liang Yang

Research output: Contribution to journalArticlepeer-review


A 200-kg low-background liquid Xe double beta decay detector (EXO-200) has been installed underground at the WIPP facility outside Carlsbad, NM. In addition to serving as a prototype for research and development toward a ton-scale experiment, EXO-200 is expected to provide the first measurement of the two-neutrino decay mode of 136Xe, as well as place competitive limits on the possible neutrinoless mode. All system components outside the time-projection chamber (TPC) itself were tested in a cryogenic commissioning run last fall. The TPC was installed earlier this year, and detector electronics are now undergoing initial testing. This summer will see the liquid Xe TPC fill, final electronics commissioning, and detector calibration. An instrumentation run with natural Xe is planned before data-taking with enriched Xe.

Original languageEnglish (US)
Pages (from-to)494
Number of pages1
JournalNuclear Physics B - Proceedings Supplements
StatePublished - Aug 2012
Externally publishedYes


  • Double-beta decay
  • Liquid Xe TPC
  • Low-background detector
  • Underground experiment

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics


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