Design and production of the high voltage electrode grids and electron extraction region for the LZ dual-phase xenon time projection chamber
arXiv:2106.06622 · doi:10.1016/j.nima.2021.165955
Abstract
The dual-phase xenon time projection chamber (TPC) is a powerful tool for direct-detection experiments searching for WIMP dark matter, other dark matter models, and neutrinoless double-beta decay. Successful operation of such a TPC is critically dependent on the ability to hold high electric fields in the bulk liquid, across the liquid surface, and in the gas. Careful design and construction of the electrodes used to establish these fields is therefore required. We present the design and production of the LUX-ZEPLIN (LZ) experiment's high-voltage electrodes, a set of four woven mesh wire grids. Grid design drivers are discussed, with emphasis placed on design of the electron extraction region. We follow this with a description of the grid production process and a discussion of steps taken to validate the LZ grids prior to integration into the TPC.
arXiv comment23 pages, 20 figures, to be submitted to Nuclear Instruments and Methods in Physics Research Section A. Corresponding authors: [email protected] and [email protected]
References in corpus (17)
- The XENON100 Dark Matter Experiment
- Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment
- Liquid noble gas detectors for low energy particle physics
- The LUX-ZEPLIN (LZ) Experiment
- The ZEPLIN-III dark matter detector: instrument design, manufacture and commissioning
- Solar Neutrinos as a Signal and Background in Direct-Detection Experiments Searching for Sub-GeV Dark Matter With Electron Recoils
- Investigation of background electron emission in the LUX detector
- The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs
- Measurement of the Drift Velocity and Transverse Diffusion of Electrons in Liquid Xenon with the EXO-200 Detector
- Discrimination of electronic recoils from nuclear recoils in two-phase xenon time projection chambers
- Simulations of Events for the LUX-ZEPLIN (LZ) Dark Matter Experiment
- Electron extraction efficiency study for dual-phase xenon dark matter experiments
- Projected sensitivity of the LUX-ZEPLIN experiment to the decay of Xe
- Ab-initio electron scattering cross-sections and transport in liquid xenon
- Study and mitigation of spurious electron emission from cathodic wires in noble liquid time projection chambers
- High Voltage in Noble Liquids for High Energy Physics
- Removal of long-lived Rn daughters by electropolishing thin layers of stainless steel