Astroparticle physics with a customized low-background broad energy Germanium detector

C. E. Aalseth, M. Amman, F. T. Avignone, H. O. Back, A. S. Barabash, P. S. Barbeau, M. Bergevin, F. E. Bertrand, M. Boswell, V. Brudanin, W. Bugg, T. H. Burritt, M. Busch, G. Capps, Y. D. Chan, J. I. Collar, R. J. Cooper, R. Creswick, J. A. Detwiler, J. DiazP. J. Doe, Yu Efremenko, V. Egorov, H. Ejiri, S. R. Elliott, J. Ely, J. Esterline, H. Farach, J. E. Fast, N. Fields, P. Finnerty, B. Fujikawa, E. Fuller, V. M. Gehman, G. K. Giovanetti, V. E. Guiseppe, K. Gusey, A. L. Hallin, G. C. Harper, R. Hazama, R. Henning, A. Hime, E. W. Hoppe, T. W. Hossbach, M. A. Howe, R. A. Johnson, K. J. Keeter, M. Keillor, C. Keller, J. D. Kephart, M. F. Kidd, A. Knecht, O. Kochetov, S. I. Konovalov, R. T. Kouzes, L. Leviner, J. C. Loach, P. N. Luke, S. MacMullin, M. G. Marino, R. D. Martin, D. M. Mei, H. S. Miley, M. L. Miller, L. Mizouni, A. W. Meyers, M. Nomachi, J. L. Orrell, D. Peterson, D. G. Phillips, A. W.P. Poon, G. Prior, J. Qian, D. C. Radford, K. Rielage, R. G.H. Robertson, L. Rodriguez, K. P. Rykaczewski, H. Salazar, A. G. Schubert, T. Shima, M. Shirchenko, D. Steele, J. Strain, G. Swift, K. Thomas, V. Timkin, W. Tornow, T. D. Van Wechel, I. Vanyushin, R. L. Varner, K. Vetter, J. F. Wilkerson, B. A. Wolfe, W. Xiang, E. Yakushev, H. Yaver, A. R. Young, C. H. Yu, V. Yumatov, C. Zhang, S. Zimmerman

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)692-695
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume652
Issue number1
DOIs
StatePublished - Oct 1 2011

Keywords

  • Dark matter
  • Germanium detector
  • Low-background
  • Neutrino experiments
  • Neutrino properties

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