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Title: The MAJORANA Demonstrator Radioassay Program

Journal Article · · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

The Majorana collaboration is constructing the Majorana Demonstrator at the Sanford Underground Research Facility at the Homestake gold mine, in Lead, SD. The apparatus will use Ge detectors, enriched in isotope 76Ge, to demonstrate the feasibility of a large-scale Ge detector experiment to search for neutrinoless double beta decay. The long half-life of this postulated process requires that the apparatus be extremely low in radioactive isotopes whose decays may produce backgrounds to the search. The radioassay program conducted by the collaboration to ensure that the materials comprising the apparatus are suffciently pure is described. The resulting measurements of the radioactiveisotope contamination for a number of materials studied for use in the detector are reported.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1306745
Report Number(s):
PNNL-SA-115634; 830403000
Journal Information:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 828; ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

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Cited By (9)

PandaX-III: Searching for neutrinoless double beta decay with high pressure 136Xe gas time projection chambers journal April 2017
Background assessment for the TREX dark matter experiment journal September 2019
New Limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator text January 2017
New limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator text January 2016
Low background techniques in bolometers for double-beta decay search text January 2017
Main features of detectors and isotopes to investigate double beta decay with increased sensitivity text January 2018
Background assessment for the TREX Dark Matter experiment text January 2018
Ultra-low radioactivity Kapton and copper-Kapton laminates text January 2019
Sensitivity of a tonne-scale NEXT detector for neutrinoless double beta decay searches preprint January 2020

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