학술논문
Design and production of the high voltage electrode grids and electron extraction region for the LZ dual-phase xenon time projection chamber
Document Type
Working Paper
Author
Linehan, R.; Mannino, R. L.; Fan, A.; Ignarra, C. M.; Luitz, S.; Skarpaas, K.; Shutt, T. A.; Akerib, D. S.; Alsum, S. K.; Anderson, T. J.; Araújo, H. M.; Arthurs, M.; Auyeung, H.; Bailey, A. J.; Biesiadzinski, T. P.; Breidenbach, M.; Cherwinka, J. J.; Conley, R. A.; Genovesi, J.; Gilchriese, M. G. D.; Glaenzer, A.; Gonda, T. G.; Hanzel, K.; Hoff, M. D.; Ji, W.; Kaboth, A. C.; Kravitz, S.; Kurita, N. R.; Lambert, A. R.; Lesko, K. T.; Lorenzon, W.; Majewski, P. A.; Miller, E. H.; Monzani, M. E.; Palladino, K. J.; Ratcliff, B. N.; Saba, J. S.; Santone, D.; Shutt, G. W.; Stifter, K.; Szydagis, M.; Tomás, A.; Va'vra, J.; Waldron, W. L.; Webb, R. C.; White, R. G.; Whitis, T. J.; Wilson, K.; Wisniewski, W. J.
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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.
Comment: 23 pages, 20 figures, to be submitted to Nuclear Instruments and Methods in Physics Research Section A. Corresponding authors: rlinehan@stanford.edu and mannino2@wisc.edu
Comment: 23 pages, 20 figures, to be submitted to Nuclear Instruments and Methods in Physics Research Section A. Corresponding authors: rlinehan@stanford.edu and mannino2@wisc.edu