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Title: Design improvements to cables and connectors in the Majorana Demonstrator

Journal Article · · Journal of Physics. Conference Series
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  1. Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of Washington, Seattle, WA (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Univ. of South Carolina, Columbia, SC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow (Russia)
  7. Univ. of South Dakota, Vermillion, SD (United States)
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  9. Max-Planck- Institut fur Physik, Munchen (Germany)
  10. Joint Institute for Nuclear Research, Dubna (Russia)
  11. Duke Univ., Durham, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  12. South Dakota School of Mines and Technology, Rapid City, SD (United States)
  13. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  14. Univ. of Washington, Seattle, WA (United States); CIEMAT, Madrid (Spain)
  15. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  16. Osaka Univ., Osaka (Japan)
  17. Princeton Univ., Princeton, NJ (United States)
  18. North Carolina State Univ., Raleigh, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  19. Univ. of South Carolina, Columbia, SC (United States)
  20. Black Hills State Univ., Spearfish, SD (United States)
  21. Tennessee Technological Univ., Cookeville, TN (United States)
  22. Univ. of Tennessee, Knoxville, TN (United States)
  23. Queen's Univ. Kingston, ON (Canada)
  24. Max-Planck-Institut fur Physik, Munchen (Germany); Technische Univ., Munchen (Germany)
  25. Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations

The Majorana Demonstrator is an experiment constructed to search for neutrinoless double-beta decays in germanium-76 and to demonstrate the feasibility to deploy a ton-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and 76Ge-enriched germanium p-type point contact detectors totaling 44.1 kg, located at the 4850 level of the Sanford Underground Research Facility in Lead, South Dakota, USA. The Demonstrator uses custom high voltage cables to bias the detectors, as well as custom signal cables and connectors to read out the charge deposited at the point contact of each detector. These low-mass cables and connectors must meet stringent radio purity requirements while being subjected to thermal and mechanical stress. A number of issues have been identified with the currently installed cables and connectors. An improved set of cables and connectors for the Majorana Demonstrator are being developed with the aim of increasing their overall reliability and connectivity. In conclusion, we will discuss some of the issues encountered with the current cables and connectors as well as our improved designs and their initial performance.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1460331
Journal Information:
Journal of Physics. Conference Series, Vol. 1342; Conference: XV International Conference on Topics in Astroparticle and Underground Physics , Sudbury, ON (Canada), 24-28 Jun 2017; Related Information: https://arxiv.org/abs/1712.03459; ISSN 1742-6588
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (4)

The MAJORANA DEMONSTRATOR Neutrinoless Double-Beta Decay Experiment journal January 2014
The Majorana Demonstrator radioassay program
  • Abgrall, N.; Arnquist, I. J.; Avignone, F. T.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 828 https://doi.org/10.1016/j.nima.2016.04.070
journal August 2016
High voltage testing for the Majorana Demonstrator
  • Abgrall, N.; Arnquist, I. J.; Avignone, F. T.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 823 https://doi.org/10.1016/j.nima.2016.04.006
journal July 2016
Low Background Signal Readout Electronics for the Majorana Demonstrator journal May 2015

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Design Improvements To Cables And Connectors In The Majorana Demonstrator poster June 2018

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