Mainz 2012 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 3: Astroteilchenphysik
HK 3.7: Talk
Monday, March 19, 2012, 15:45–16:00, RW 3
Majorana Demonstrator Project Overview and Status — •Florian Fraenkle — Department of Physics, University of North Carolina, Chapel Hill, NC, USA — Triangle Universities Nuclear Laboratory, Durham, NC, USA
The Majorana Demonstrator is a mixed array of enriched and natural high-purity germanium p-type point-contact detectors (P-PC HPGe) that will search for the neutrinoless double beta decay (0νββ) of the 76Ge isotope. The instrument is composed of two cryostats built from ultra-pure electroformed copper, each containing 20 kg of HPGe detectors. Goals of the Demonstrator are to demonstrate the feasibility of achieving a background rate below one count/tonne/year in the 4 keV region of interest around the 2039 keV Q-value of the 76Ge 0νββ-decay and to demonstrate technical and engineering scalability toward a tonne-scale instrument. The talk will give an overview of the project and the current status.