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Title: ADC Nonlinearity Correction for the Majorana Demonstrator

Journal Article · · IEEE Transactions on Nuclear Science
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  1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
  2. Oak Ridge National Laboratory, Oak Ridge, TN, USA
  3. Pacific Northwest National Laboratory, Richland, WA, USA
  4. National Research Center, “Kurchatov Institute” Institute for Theoretical and Experimental Physics, Moscow, Russia
  5. Department of Physics, University of South Dakota, Vermillion, SD, USA
  6. Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC, USA
  7. Triangle Universities Nuclear Laboratory, Durham, NC, USA
  8. Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, WA, USA
  9. South Dakota School of Mines and Technology, Rapid City, SD, USA
  10. Los Alamos National Laboratory, Los Alamos, NM, USA
  11. Department of Physics and Astronomy, University of South Carolina, Columbia, SC, USA
  12. Research Center for Nuclear Physics, Osaka University, Osaka, Japan
  13. Physics Department, Williams College, Williamstown, MA, USA
  14. Department of Physics, Tennessee Tech University, Cookeville, TN, USA
  15. Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, USA
  16. Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, ON, Canada
  17. Max-Planck-Institut für Physik, Munich, Germany
  18. Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, Dubna, Russia
+ Show Author Affiliations

Imperfections in analog-to-digital conversion cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution, as is the case for the MAJORANA DEMONSTRATOR 76Ge neutrinoless double beta decay search. Enabling the experiment's high-resolution spectral analysis and efficient pulse shape discrimination required careful measurement and correction of ADC nonlinearites. Here, a simple measurement protocol was developed that did not require sophisticated equipment or lengthy data taking campaigns. A slope-dependent hysteresis was observed and characterized. A correction applied to digitized waveforms prior to signal processing reduced the differential and integral nonlinearites by an order of magnitude, eliminating these as dominant contributions to the systematic energy uncertainty at the double-beta decay Q value.

Research Organization:
University of North Carolina, Chapel Hill, NC (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program; Natural Sciences and Engineering Research Council of Canada (NSERC)
Contributing Organization:
MAJORANA Collaboration
Grant/Contract Number:
FG02-97ER41041; FG02-97ER41033; AC02-05CH11231; AC05-00OR22725; AC05-76RL0130; AC02-76SF00515; FG02-97ER41020; SC0012612; SC0014445; SC0018060; LANLE9BW; MRI-0923142; PHY-1003399; PHY-1102292; PHY-1206314; PHY-1614611; PHY-1812409; PHY-1812356; 15-02-02919; 89233218CNA000001
OSTI ID:
1834082
Alternate ID(s):
OSTI ID: 1670120; OSTI ID: 1776758; OSTI ID: 1776779; OSTI ID: 1784114
Report Number(s):
LA-UR-20-21663; TRN: US2300121
Journal Information:
IEEE Transactions on Nuclear Science, Vol. 68, Issue 3; ISSN 0018-9499
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

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