  The Majorana Collaboration is using an array of high-purity Ge detectors to
search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless
double-beta decay are understood to be the only viable experimental method for
testing the Majorana nature of the neutrino. Observation of this decay would
imply violation of lepton number, that neutrinos are Majorana in nature, and
provide information on the neutrino mass. The Majorana Demonstrator comprises
44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge)
surrounded by a low-background shield system. The experiment achieved a high
efficiency of converting raw Ge material to detectors and an unprecedented
detector energy resolution of 2.5 keV FWHM at Q$_{\beta\beta}$. The Majorana
collaboration began taking physics data in 2016. This paper summarizes key
construction aspects of the Demonstrator and shows preliminary results from
initial data.
