Dual-phase liquid xenon detectors for dark matter searches

作者：Schumann Marc^*

来源：Journal of Instrumentation, 2014, 9(08): C08004.

DOI：10.1088/1748-0221/9/08/C08004

• Noble liquid detectors (scintillation, ionization, double-phase)
• Dark Matter detectors (WIMPs, axions, etc.)
• Detector design and construction technologies and materials

Dual-phase time projection chambers (TPCs) filled with the liquid noble gas xenon (LXe) are currently the most sensitive detectors searching for interactions of WIMP dark matter in a laboratory-based experiment. This is achieved by combining a large, monolithic dark matter target of a very low background with the capability to localize the interaction vertex in three dimensions, allowing for target fiducialization and multiple-scatter rejection. The background in dual-phase LXe TPCs is further reduced by the simultaneous measurement of the scintillation and ionization signal from a particle interaction, which is used to distinguish signal from background signatures. This article reviews the principle of dual-phase LXe TPCs, and provides an overview about running as well as future experimental efforts.

• 出版日期2014-8