The EXO-200 detector, part II: Auxiliary Systems

Abstract

The EXO-200 experiment searched for neutrinoless double-beta decay of ${}^{136}$Xe with a single-phase liquid xenon detector. It used an active mass of 110 kg of 80.6%-enriched liquid xenon in an ultra-low background time projection chamber with ionization and scintillation detection and readout. This paper describes the design and performance of the various support systems necessary for detector operation, including cryogenics, xenon handling, and controls. Novel features of the system were driven by the need to protect the thin-walled detector chamber containing the liquid xenon, to achieve high chemical purity of the Xe, and to maintain thermal uniformity across the detector.

arXiv commentManuscript updated in response to JINST reviewer comments

References in corpus (11)

• Search for Neutrinoless Double-Beta Decay with the Complete EXO-200 Dataset
• Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector
• The LUX-ZEPLIN (LZ) Experiment
• An improved measurement of the 2νββ half-life of Xe-136 with EXO-200
• The EXO-200 detector, part I: Detector design and construction
• Systematic study of trace radioactive impurities in candidate construction materials for EXO-200
• Characterization of large area APDs for the EXO-200 detector
• Investigation of radioactivity-induced backgrounds in EXO-200
• A magnetically-driven piston pump for ultra-clean applications
• Xenon purity analysis for EXO-200 via mass spectrometry
• A xenon gas purity monitor for EXO

Cited by in corpus (2)

• Search for MeV Electron Recoils from Dark Matter in EXO-200
• Development of a ${}^{127}$Xe calibration source for nEXO