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29 March 2024
 
  » arxiv » 1603.8483

 Article overview


High voltage testing for the MAJORANA Demonstrator
N. Abgrall ; I.J. Arnquist ; F.T. Avignone III ; A.S. Barabash ; F.E. Bertrand ; A.W. Bradley ; V. Brudanin ; M. Busch ; M. Buuck ; D. Byram ; A.S. Caldwell ; Y-D. Chan ; C.D. Christofferson ; P.-H. Chu ; C. Cuesta ; J.A. Detwiler ; P.J. Doe ; C. Dunagan ; Yu. Efremenko ; H. Ejiri ; S.R. Elliott ; Z. Fu ; A. Galindo-Uribarri ; G.K. Giovanetti ; J. Goett ; M.P. Green ; J. Gruszko ; I.S. Guinn ; V.E. Guiseppe ; R. Henning ; E.W. Hoppe ; S. Howard ; M.A. Howe ; B.R. Jasinski ; K.J. Keeter ; M.F. Kidd ; S.I. Konovalov ; R.T. Kouzes ; B.D. LaFerriere ; J. Leon ; A. Li ; J. MacMullin ; R.D. Martin ; R. Massarczyk ; S.J. Meijer ; S. Mertens ; J.L. Orrell ; C. O'Shaughnessy ; A.W.P. Poon ; D.C. Radford ; J. Rager ; K. Rielage ; R.G.H. Robertson ; E. Romero-Romero ; B. Shanks ; M. Shirchenko ; N. Snyder ; A.M. Suriano ; D. Tedeschi ; A. Thompson ; K.T. Ton ; J.E. Trimble ; R.L. Varner ; S. Vasilyev ; K. Vetter ; K. Vorren ; B.R. White ; J.F. Wilkerson ; C. Wiseman ; W. Xu ; E. Yakushev ; C.-H. Yu ; V. Yumatov ;
Date 28 Mar 2016
AbstractThe 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 eff?ect 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 diff?erent 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 eff?ects 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.
Source arXiv, 1603.8483
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