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2017•Physics of Particles and NucleiOpen access

Status of the MAJORANA DEMONSTRATOR

S. Vasilyev, N. Abgrall, I. J. Arnquist, Frank T. Avignone III, C. X. Balderrot-Barrera, Alexander S. Barabash, F. E. Bertrand, A. W. Bradley, V. B. Brudanin, M. Busch, M. Buuck, D. Byram, Allen Caldwell, Y. D. Chan, C. D. Christofferson, C. Cuesta, J. A. Detwiler, Yu V Efremenko, H. Ejiri, S.R. Elliott, Alfredo Galindo-Uribarri, T. Gilliss, Graham Kurt Giovanetti, J. Goett, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, R. Henning, E. W. Hoppe, Stanley M. Howard, Mark A. Howe, B.R. Jasinski, K. Keeter, M. F. Kidd, С. И. Коновалов, R. T. Kouzes, B. D. LaFerriere, J. Leon, J. MacMullin, R. D. Martin, S. J. Meijer, S. Mertens, John L. Orrell, Christopher M. O’Shaughnessy, Alan W. P. Poon, D. C. Radford, J. Rager, Keith R. Rielage, R. G. H. Robertson, E. Romero-Romero, B. Shanks, M. Shirchenko, N. Snyder, A. M. Suriano, David J. Tedeschi, J. E. Trimble, Robert L. Varner, K. Vetter, K. Vorren, B. R. White, John F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, C.-H. Yu, V. I. Umatov, I. Zhitnikov

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Abstract

The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, an ultralow background, 40-kg modular high purity Ge (HPGe) detector array to search for neutrinoless double-beta decay (0νββ-decay) in 76 Ge. The goal of the experiment is to demonstrate a background rate at or below 3 counts/(t-y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76 Ge 0νββ-decay. In this paper, the status of the MAJORANA DEMONSTRATOR, including its design and measurements of properties of the HPGe crystals is presented.

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What this paper is about

The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, an ultralow background, 40-kg modular high purity Ge (HPGe) detector array to search for neutrinoless double-beta decay (0νββ-decay) in 76 Ge. The goal of the experiment is to demonstrate a background rate at or below 3 counts/(t-y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76 Ge 0νββ-decay. In this paper, the status of the MAJORANA DEMONSTRATOR, including its design and measurements of properties of the HPGe crystals is presented.

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Available abstract

The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, an ultralow background, 40-kg modular high purity Ge (HPGe) detector array to search for neutrinoless double-beta decay (0νββ-decay) in 76 Ge. The goal of the experiment is to demonstrate a background rate at or below 3 counts/(t-y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76 Ge 0νββ-decay. In this paper, the status of the MAJORANA DEMONSTRATOR, including its design and measurements of properties of the HPGe crystals is presented.

Key concepts: MAJORANA, Physics, Double beta decay, Nuclear physics, Semiconductor detector, Detector, Particle physics, Modular design

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