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Title: Testing the Ge detectors for the MAJORANA DEMONSTRATOR

High purity germanium (HPGe) crystals will be used for the MAJORANA DEMONSTRATOR, where they serve as both the source and the detector for neutrinoless double beta decay. It is crucial for the experiment to understand the performance of the HPGe crystals. A variety of crystal properties are being investigated, including basic properties such as energy resolution, efficiency, uniformity, capacitance, leakage current and crystal axis orientation, as well as more sophisticated properties, e.g. pulse shapes and dead layer and transition layer distributions. In this talk, we will present our measurements that characterize the HPGe crystals. We will also discuss the our simulation package for the detector characterization setup, and show that additional information can be extracted from data-simulation comparisons.
Authors:
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  4. Univ. of South Carolina, Columbia, SC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Institute for Theoretical and Experimental Physics, Moscow (Russia)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. Joint Institute for Nuclear Research, Dubna (Russia)
  8. Duke Univ., Durham, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  9. Univ. of South Dakota, Vermillion, SD (United States)
  10. South Dakota School of Mines and Technology, Rapid City, SD (United States)
  11. North Carolina State Univ., Raleigh, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  12. Univ. of Washington, Seattle, WA (United States)
  13. Univ. of Tennessee, Knoxville, TN (United States)
  14. Osaka Univ., Osaka (Japan)
  15. Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  16. Univ. of South Carolina, Columbia, SC (United States)
  17. Univ. of Alberta, Edmonton, AB (Canada)
  18. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); North Carolina State Univ., Raleigh, NC (United States)
  19. Black Hills State Univ., Spearfish, SD (United States)
  20. Tennessee Tech Univ., Cookeville, TN (United States)
  21. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  22. South Dakota School of Mines and Technology, Rapid City, SD (United States); Black Hills State Univ., Spearfish, SD (United States)
  23. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  24. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States); Univ. of North Carolina, Chapel Hill, NC (United States)
Publication Date:
OSTI Identifier:
1201774
Type:
Accepted Manuscript
Journal Name:
Physics Procedia
Additional Journal Information:
Journal Volume: 61; Journal Issue: C; Journal ID: ISSN 1875-3892
Publisher:
Elsevier
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY neutrinoless double beta decay; germanium detector; majorana