Speaker
Mr
Ian Guinn
(University of Washington)
Description
The MAJORANA Collaboration will seek neutrinoless double beta decay in Ge-76 using isotopically enriched p-type point contact (PPC) high purity Germanium (HPGe) detectors. A tonne-scale array of HPGe detectors would require background levels below 1 count/ROI-tonne-year in the 4 keV region of interest (ROI) around the 2039 keV Q-value of the decay. In order to demonstrate the feasibility of such an experiment, the MAJORANA DEMONSTRATOR, a 40 kg HPGe detector array, is being constructed. The Demonstrator has a background goal of <3 counts/ROI-tonne-year, which is expected to scale down to <1 count/ROI-tonne-year for a one tonne experiment. The signal readout electronics, which must be placed in close proximity to the detectors, present a challenge toward reaching this background goal. This talk will discuss the novel materials and design used to construct signal readout electronics with low enough backgrounds for the MAJORANA DEMONSTRATOR.
Primary author
Mr
Ian Guinn
(University of Washington)
