Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2010-07-19
Nucl.Instrum.Meth.A652:692-695,2011
Physics
Nuclear Physics
Nuclear Experiment
Submitted to NIMA Proceedings, SORMA XII. 9 pages, 4 figures
Scientific paper
10.1016/j.nima.2010.08.100
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 1-10 GeV/c^2 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.
Aalseth Craig E.
Amman Mark
Avignone III Frank T.
Back Henning O.
Barabash A. S.
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