Speaker
Dr
Alan Poon
(Lawrence Berkeley National Laboratory)
Description
MAJORANA is a tonne-scale 76Ge neutrinoless double-beta decay
experiment with the goal of probing the Majorana neutrino mass in the
inverted mass hierarchy scenario. The experiment must meet the
stringent requirement of fewer than 1 background count/(keV tonne yr)
in the 4-keV region around the Q value of 2039 keV. The Collaboration
is building a ~60-kg prototype, the MAJORANA Demonstrator, of high
purity germanium detectors, half of which will be enriched in 76Ge.
Several detector options were pursued in order to assess and optimize
their ability in rejecting radioactive background events that interact at
multiple sites in the detectors. The most promising option is the class of
p-type point-contact detectors. In this poster, the detector
development program of MAJORANA is presented.
Author
Dr
Alan Poon
(Lawrence Berkeley National Laboratory)
