Details

Autor(en) / Beteiligte

• Guinn, Ian
• Rielage, Keith Robert
• Elliott, Steven Ray
• Xu, Wenqin
• Goett, John Jerome III

Titel

Low background signal readout electronics for the MAJORANA DEMONSTRATOR

Ist Teil von

• AIP Conference Proceedings, 2015, Vol.1672 (1)

Ort / Verlag

Melville: American Institute of Physics

Erscheinungsjahr

2015

Beschreibungen/Notizen

• The MAJORANA Collaboration will seek neutrinoless double beta decay (0νββ) in 76Ge 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 with a background goal of < 3 count/ROI-tonne-year, which is expected to scale down to < 1 count/ROI-tonne-year for a tonne-scale 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 materials and design used to construct signal readout electronics with low enough backgrounds for the MAJORANA DEMONSTRATOR.