/ physics.ins-det arXiv:1603.08483

High voltage testing for the MAJORANA Demonstrator

Abgrall, N. (LBL, Berkeley) ; Arnquist, I.J. (PNL, Richland) ; Avignone, F.T., III (Oak Ridge) ; Barabash, A.S. (Kurchatov Inst., Moscow) ; Bertrand, F.E. (Oak Ridge) ; Bradley, A.W. (LBL, Berkeley) ; Brudanin, V. (Dubna, JINR) ; Busch, M. (TUNL, Durham) ; Buuck, M. (Washington U., Seattle) ; Byram, D. (South Dakota U.) ; Caldwell, A.S. (South Dakota Sch. Mines Tech.) ; Chan, Y-D. (LBL, Berkeley) ; Christofferson, C.D. (South Dakota Sch. Mines Tech.) ; Chu, P.H. (Los Alamos) ; C. Cuesta\corref ca (Washington U., Seattle) ; Detwiler, J.A. (Washington U., Seattle) ; Doe, P.J. (Washington U., Seattle) ; Dunagan, C. (South Dakota Sch. Mines Tech.) ; Efremenko, Yu. (Tennessee U.) ; Ejiri, H. (Osaka U.) ; Elliott, S.R. (Los Alamos) ; Fu, Z. (Washington U., Seattle) ; Galindo-Uribarri, A. (Oak Ridge) ; Giovanetti, G.K. (TUNL, Durham) ; Goett, J. (Los Alamos) ; Green, M.P. (Oak Ridge) ; Gruszko, J. (Washington U., Seattle) ; Guinn, I.S. (Washington U., Seattle) ; Guiseppe, V.E. (South Carolina U.) ; Henning, R. (TUNL, Durham) ; Hoppe, E.W. (PNL, Richland) ; Howard, S. (South Dakota Sch. Mines Tech.) ; Howe, M.A. (TUNL, Durham) ; Jasinski, B.R. (South Dakota U.) ; Keeter, K.J. (Black Hills State U.) ; Kidd, M.F. (Tennessee Tech. U.) ; Konovalov, S.I. (Kurchatov Inst., Moscow) ; Kouzes, R.T. (PNL, Richland) ; LaFerriere, B.D. (PNL, Richland) ; Leon, J. (Washington U., Seattle) ; Li, A. (Washington U., Seattle) ; MacMullin, J. (TUNL, Durham) ; Martin, R.D. (Queen's U., Kingston) ; Massarczyk, R. (Los Alamos) ; Meijer, S.J. (TUNL, Durham) ; Mertens, S. (LBL, Berkeley) ; Orrell, J.L. (PNL, Richland) ; O'Shaughnessy, C. (TUNL, Durham) ; Poon, A.W.P. (LBL, Berkeley) ; Radford, D.C. (Oak Ridge) ; Rager, J. (TUNL, Durham) ; Rielage, K. (Los Alamos) ; Robertson, R.G.H. (Washington U., Seattle) ; Romero-Romero, E. (Oak Ridge) ; Shanks, B. (TUNL, Durham) ; Shirchenko, M. (Dubna, JINR) ; Snyder, N. (South Dakota U.) ; Suriano, A.M. (South Dakota Sch. Mines Tech.) ; Tedeschi, D. (South Carolina U.) ; Thompson, A. (Washington U., Seattle) ; Ton, K.T. (Washington U., Seattle) ; Trimble, J.E. (TUNL, Durham) ; Varner, R.L. (Oak Ridge) ; Vasilyev, S. (Dubna, JINR) ; K. Vetter\fnref ucb (LBL, Berkeley) ; Vorren, K. (TUNL, Durham) ; White, B.R. (Los Alamos) ; Wilkerson, J.F. (North Carolina U.) ; Wiseman, C. (South Carolina U.) ; Xu, W. (Los Alamos) ; Yakushev, E. (Dubna, JINR) ; Yu, C.H. (Oak Ridge) ; Yumatov, V. (Kurchatov Inst., Moscow)

Pages: 9

Abstract: The MAJORANA Collaboration is constructing the MAJORANA Demonstrator, an ultra-low background, 44-kg modular high-purity Ge (HPGe) detector array to search for neutrinoless double-beta decay in Ge-76. The phenomenon of surface micro-discharge induced by high-voltage has been studied in the context of the MAJORANA Demonstrator. This effect can damage the front-end electronics or mimic detector signals. To ensure the correct performance, every high-voltage cable and feedthrough must be capable of supplying HPGe detector operating voltages as high as 5 kV without exhibiting discharge. R&D measurements were carried out to understand the testing system and determine the optimum design configuration of the high-voltage path, including different improvements of the cable layout and feedthrough flange model selection. Every cable and feedthrough to be used at the MAJORANA Demonstrator was characterized and the micro-discharge effects during the MAJORANA Demonstrator commissioning phase were studied. A stable configuration has been achieved, and the cables and connectors can supply HPGe detector operating voltages without exhibiting discharge.

Web-Page: http://inspirehep.net/record/1435058/files/arXiv:1603.08483.pdf

Note: *Temporary entry*; 9 pages, 12 figures, 8 tables, submitted to NIM A

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 Record created 2016-04-04, last modified 2016-04-04

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