Author/Authors :
Aalseth، نويسنده , , C.E. and Amman، نويسنده , , M. and Avignone III، نويسنده , , F.T. and Back، نويسنده , , H.O. and Barabash، نويسنده , , A.S. and Barbeau، نويسنده , , P.S. and Bergevin، نويسنده , , M. J. Bertrand، نويسنده , , F.E. and Boswell، نويسنده , , M. and Brudanin، نويسنده , , V. and Bugg، نويسنده , , David W. and Burritt، نويسنده , , Th. and Busch، نويسنده , , M. and Capps، نويسنده , , G. and Chan، نويسنده , , Y.-D. and Coll، نويسنده ,
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 1–10 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.
Keywords :
Neutrino experiments , Neutrino properties , Low-background , Germanium detector , Dark matter
