Astroparticle physics with a customized low-background broad energy Germanium detector
The Majorana Collaboration is building the Majorana Demonstrator, a 60 kg array of high purity germanium detectors housed in an ultra-low background shield at the Sanford Underground Laboratory in Lead, SD. The Majorana Demonstrator will search for neutrinoless double-beta decay of 76Ge while demonstrating the feasibility of a tonne-scale experiment. It may also carry out a dark matter search in the 110 GeV/c2 mass range. We have found that customized Broad Energy Germanium (BEGe) detectors produced by Canberra have several desirable features for a neutrinoless double-beta decay experiment, including low electronic noise, excellent pulse shape analysis capabilities, and simple fabrication. We have deployed a customized BEGe, the Majorana Low-Background BEGe at Kimballton (MALBEK), in a low-background cryostat and shield at the Kimballton Underground Research Facility in Virginia. This paper will focus on the detector characteristics and measurements that can be performed with such a radiation detector in a low-background environment. © 2010 Elsevier B.V.
Aalseth, CE; Amman, M; Avignone, FT; Back, HO; Barabash, AS; Barbeau, PS; Bergevin, M; Bertrand, FE; Boswell, M; Brudanin, V; Bugg, W; Burritt, TH; Busch, M; Capps, G; Chan, YD; Collar, JI; Cooper, RJ; Creswick, R; Detwiler, JA; Diaz, J; Doe, PJ; Efremenko, Y; Egorov, V; Ejiri, H; Elliott, SR; Ely, J; Esterline, J; Farach, H; Fast, JE; Fields, N; Finnerty, P; Fujikawa, B; Fuller, E; Gehman, VM; Giovanetti, GK; Guiseppe, VE; Gusey, K; Hallin, AL; Harper, GC; Hazama, R; Henning, R; Hime, A; Hoppe, EW; Hossbach, TW; Howe, MA; Johnson, RA; Keeter, KJ; Keillor, M; Keller, C; Kephart, JD; Kidd, MF; Knecht, A; Kochetov, O; Konovalov, SI; Kouzes, RT; Leviner, L; Loach, JC; Luke, PN; MacMullin, S; Marino, MG; Martin, RD; Mei, DM; Miley, HS; Miller, ML; Mizouni, L; Meyers, AW; Nomachi, M; Orrell, JL; Peterson, D; Phillips, DG; Poon, AWP; Prior, G; Qian, J; Radford, DC; Rielage, K; Robertson, RGH; Rodriguez, L; Rykaczewski, KP; Salazar, H; Schubert, AG; Shima, T; Shirchenko, M; Steele, D; Strain, J; Swift, G; Thomas, K; Timkin, V; Tornow, W; Van Wechel, TD; Vanyushin, I; Varner, RL; Vetter, K; Wilkerson, JF; Wolfe, BA; Xiang, W; Yakushev, E; Yaver, H; Young, AR; Yu, CH; Yumatov, V
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