Operation and performance of a dual-phase crystalline/vapor xenon time projection chamber
arXiv:2201.05740 · doi:10.1088/1748-0221/17/04/P04014
Abstract
We have built and operated a crystalline/vapor xenon TPC, with the goal of improving searches for dark matter. The motivation for this instrument is the fact that beta decays from the radon decay chain to the ground state presently limit the state-of-the-art liquid/vapor xenon experiments. In contrast, a crystalline xenon target has the potential to tag and reject radon-chain backgrounds, due to the time and energy signature of their decays. The present article is the first demonstration of a crystalline/vapor xenon TPC with electroluminescence (gas gain) for the electron signal readout. It also shows that the scintillation yield in crystalline xenon appears to be identical to that in liquid xenon, in contrast to previous results.
References in corpus (7)
- Implication of neutrino backgrounds on the reach of next generation dark matter direct detection experiments
- Projected WIMP Sensitivity of the XENONnT Dark Matter Experiment
- The LUX-ZEPLIN (LZ) Experiment
- Fog on the horizon: a new definition of the neutrino floor for direct dark matter searches
- VUV-sensitive Silicon Photomultipliers for Xenon Scintillation Light Detection in nEXO
- Characterisation of Silicon Photomultipliers for Liquid Xenon Detectors
- Scalability, scintillation readout and charge drift in a kilogram scale solid xenon particle detector