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Title: Germanium-76 Sample Analysis: Revision 3

Abstract

The MAJORANA DEMONSTRATOR is a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0{nu}{beta}{beta}). The DEMONSTRATOR will utilize 76Ge from Russia. The first one-gram sample was received from the supplier for analysis on April 24, 2011. The second one-gram sample was received from the supplier for analysis on July 12, 2011. The third sample, which came from the first large shipment of germanium from the vendor, was received from Oak Ridge National Laboratory (ORNL) on September 13, 2011. The Environmental Molecular Sciences facility, a DOE user facility at PNNL, was used to make the required isotopic and chemical purity measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR. The results of these analyses are reported here. The isotopic composition of a sample of natural germanium was also measured twice. Differences in the result between these two measurements led to a re-measurement of the second 76Ge sample.

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028075
Report Number(s):
PNNL-20368 Revision 3
43992; 830403000; TRN: US1105913
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; DECAY; GE SEMICONDUCTOR DETECTORS; GERMANIUM; GERMANIUM 76; ORNL; QUALITY ASSURANCE; Environmental Molecular Sciences Laboratory

Citation Formats

Kouzes, Richard T., Zhu, Zihua, and Engelhard, Mark H. Germanium-76 Sample Analysis: Revision 3. United States: N. p., 2011. Web. doi:10.2172/1028075.
Kouzes, Richard T., Zhu, Zihua, & Engelhard, Mark H. Germanium-76 Sample Analysis: Revision 3. United States. doi:10.2172/1028075.
Kouzes, Richard T., Zhu, Zihua, and Engelhard, Mark H. Mon . "Germanium-76 Sample Analysis: Revision 3". United States. doi:10.2172/1028075. https://www.osti.gov/servlets/purl/1028075.
@article{osti_1028075,
title = {Germanium-76 Sample Analysis: Revision 3},
author = {Kouzes, Richard T. and Zhu, Zihua and Engelhard, Mark H.},
abstractNote = {The MAJORANA DEMONSTRATOR is a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay (0{nu}{beta}{beta}). The DEMONSTRATOR will utilize 76Ge from Russia. The first one-gram sample was received from the supplier for analysis on April 24, 2011. The second one-gram sample was received from the supplier for analysis on July 12, 2011. The third sample, which came from the first large shipment of germanium from the vendor, was received from Oak Ridge National Laboratory (ORNL) on September 13, 2011. The Environmental Molecular Sciences facility, a DOE user facility at PNNL, was used to make the required isotopic and chemical purity measurements that are essential to the quality assurance for the MAJORANA DEMONSTRATOR. The results of these analyses are reported here. The isotopic composition of a sample of natural germanium was also measured twice. Differences in the result between these two measurements led to a re-measurement of the second 76Ge sample.},
doi = {10.2172/1028075},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {9}
}

Technical Report:

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