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Low Background Signal Readout Electronics for the MAJORANA DEMONSTRATOR

Conference ·
DOI:https://doi.org/10.1063/1.4927982· OSTI ID:1343520
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  1. University of Washington, Seattle
  2. Lawrence Berkeley National Laboratory (LBNL)
  3. Pacific Northwest National Laboratory (PNNL)
  4. University of South Carolina/Oak Ridge National Laboratory (ORNL)
  5. Oak Ridge National Laboratory (ORNL)
  6. Institute of Theoretical & Experimental Physics (ITEP), Moscow, Russia
  7. Joint Institute for Nuclear Research, Dubna, Russia
  8. Duke University/TUNL
  9. University of South Dakota
  10. South Dakota School of Mines and Technology
  11. University of Tennessee, Knoxville (UTK)
  12. Osaka University, Japan
  13. Los Alamos National Laboratory (LANL)
  14. University of North Carolina, Chapel Hill / Triangle Universities Nuclear Laboratory, Durham, NC
  15. University of North Carolina / Triangle Universities Nuclear Lababoratory, Durham
  16. University of South Carolina, Columbia
  17. Black Hills State University, Spearfish, South Dakota
  18. Tennessee Technological University (TTU)
  19. UNC/Triangle Univ. Nucl. Lab, Durham, NC/ORNL
+ Show Author Affiliations
The MAJORANA Collaboration will seek neutrinoless double beta decay (0 nu beta beta) 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 with a background goal of <3 counts/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.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1343520
Country of Publication:
United States
Language:
English

References (5)

An array of low-background 3He proportional counters for the Sudbury Neutrino Observatory
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  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 579, Issue 3 https://doi.org/10.1016/j.nima.2007.05.321
journal September 2007
Double beta decay, Majorana neutrinos, and neutrino mass journal April 2008
Low-noise low-mass front end electronics for low-background physics experiments using germanium detectors
  • Barton, Paul; Luke, Paul; Amman, Mark
  • 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC), 2011 IEEE Nuclear Science Symposium Conference Record https://doi.org/10.1109/NSSMIC.2011.6154397
conference October 2011
Large-mass ultralow noise germanium detectors: performance and applications in neutrino and astroparticle physics journal September 2007
The MAJORANA DEMONSTRATOR Neutrinoless Double-Beta Decay Experiment journal January 2014

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