학술논문
Design and production of the high voltage electrode grids and electron extraction region for the LZ dual-phase xenon time projection chamber
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article
Author
Linehan, R; Mannino, RL; Fan, A; Ignarra, CM; Luitz, S; Skarpaas, K; Shutt, TA; Akerib, DS; Alsum, SK; Anderson, TJ; Araújo, HM; Arthurs, M; Auyeung, H; Bailey, AJ; Biesiadzinski, TP; Breidenbach, M; Cherwinka, JJ; Conley, RA; Genovesi, J; Gilchriese, MGD; Glaenzer, A; Gonda, TG; Hanzel, K; Hoff, MD; Ji, W; Kaboth, AC; Kravitz, S; Kurita, NR; Lambert, AR; Lesko, KT; Lorenzon, W; Majewski, PA; Miller, EH; Monzani, ME; Palladino, KJ; Ratcliff, BN; Saba, JS; Santone, D; Shutt, GW; Stifter, K; Szydagis, M; Tomás, A; Va'vra, J; Waldron, WL; Webb, RC; White, RG; Whitis, TJ; Wilson, K; Wisniewski, WJ
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Abstract
The dual-phase xenon time projection chamber (TPC) is a powerful tool fordirect-detection experiments searching for WIMP dark matter, other dark mattermodels, and neutrinoless double-beta decay. Successful operation of such a TPCis critically dependent on the ability to hold high electric fields in the bulkliquid, across the liquid surface, and in the gas. Careful design andconstruction of the electrodes used to establish these fields is thereforerequired. We present the design and production of the LUX-ZEPLIN (LZ)experiment's high-voltage electrodes, a set of four woven mesh wire grids. Griddesign drivers are discussed, with emphasis placed on design of the electronextraction region. We follow this with a description of the grid productionprocess and a discussion of steps taken to validate the LZ grids prior tointegration into the TPC.