Background Model for the Majorana Demonstrator

C. Cuesta, N. Abgrall, E. Aguayo, F. T. Avignone, A. S. Barabash, F. E. Bertrand, M. Boswell, V. Brudanin, M. Busch, D. Byram, A. S. Caldwell, Y. D. Chan, C. D. Christofferson, D. C. Combs, J. A. Detwiler, P. J. Doe, Yu Efremenko, V. Egorov, H. Ejiri, S. R. ElliottJ. E. Fast, P. Finnerty, F. M. Fraenkle, A. Galindo-Uribarri, G. K. Giovanetti, J. Goett, M. P. Green, J. Gruszko, V. E. Guiseppe, K. Gusev, A. L. Hallin, R. Hazama, A. Hegai, R. Henning, E. W. Hoppe, S. Howard, M. A. Howe, K. J. Keeter, M. F. Kidd, O. Kochetov, S. I. Konovalov, R. T. Kouzes, B. D. Laferriere, J. Leon, L. E. Leviner, J. C. Loach, J. MacMullin, S. MacMullin, R. D. Martin, S. Meijer, S. Mertens, M. Nomachi, J. L. Orrell, C. O'Shaughnessy, N. R. Overman, D. G. Phillips, A. W.P. Poon, K. Pushkin, D. C. Radford, J. Rager, K. Rielage, R. G.H. Robertson, E. Romero-Romero, M. C. Ronquest, A. G. Schubert, B. Shanks, T. Shima, M. Shirchenko, K. J. Snavely, N. Snyder, A. M. Suriano, J. Thompson, V. Timkin, W. Tornow, J. E. Trimble, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, A. R. Young, C. H. Yu, V. Yumatov

Publikation: Beitrag in FachzeitschriftKonferenzartikelBegutachtung

4 Zitate (Scopus)

Abstract

The Majorana Collaboration is constructing a system containing 40 kg of HPGe detectors to demonstrate the feasibility and potential of a future tonne-scale experiment capable of probing the neutrino mass scale in the inverted-hierarchy region. To realize this, a major goal of the Majorana Demonstrator is to demonstrate a path forward to achieving a background rate at or below 1 cnt/(ROI-t-y) in the 4 keV region of interest around the Q-value at 2039 keV. This goal is pursued through a combination of a significant reduction of radioactive impurities in construction materials with analytical methods for background rejection, for example using powerful pulse shape analysis techniques profiting from the p-type point contact HPGe detectors technology. The effectiveness of these methods is assessed using simulations of the different background components whose purity levels are constrained from radioassay measurements.

OriginalspracheEnglisch
Seiten (von - bis)821-827
Seitenumfang7
FachzeitschriftPhysics Procedia
Jahrgang61
DOIs
PublikationsstatusVeröffentlicht - 2015
Extern publiziertJa
Veranstaltung13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 - , USA/Vereinigte Staaten
Dauer: 8 Sept. 201313 Sept. 2013

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