Quality assurance of temporal variability of natural decay chain and neutron induced background for low-level NORM analysis
Abstract
In this study, twenty-one high purity germanium (HPGe) background spectra were collected over 2 years at Los Alamos National Laboratory. A quality assurance methodology was developed to monitor spectral background levels from thermal and fast neutron flux levels and naturally occurring radioactive material decay series radionuclides. 238U decay products above 222Rn demonstrated minimal temporal variability beyond that expected from counting statistics. 238U and 232Th progeny below Rn gas displayed at most twice the expected variability. Further, an analysis of the 139 keV 74Ge(n, γ) and 691 keV 72Ge(n, n') spectral features demonstrated temporal stability for both thermal and fast neutron fluxes.
- Authors:
-
- Univ. of Texas, Austin, TX (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1296660
- Report Number(s):
- LA-UR-15-22454
Journal ID: ISSN 0236-5731
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Radioanalytical and Nuclear Chemistry
- Additional Journal Information:
- Journal Volume: 307; Journal Issue: 3; Conference: International Conference on Methods and Applications of Radioanalytical Chemistry (MARC), Kona Keauhou, HI (United States), 12-14 Apr 2015; Journal ID: ISSN 0236-5731
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; NORM; neutron; background; quality assurance; HPGe
Citation Formats
Yoho, Michael, Porterfield, Donivan R., and Landsberger, Sheldon. Quality assurance of temporal variability of natural decay chain and neutron induced background for low-level NORM analysis. United States: N. p., 2015.
Web. doi:10.1007/s10967-015-4467-9.
Yoho, Michael, Porterfield, Donivan R., & Landsberger, Sheldon. Quality assurance of temporal variability of natural decay chain and neutron induced background for low-level NORM analysis. United States. https://doi.org/10.1007/s10967-015-4467-9
Yoho, Michael, Porterfield, Donivan R., and Landsberger, Sheldon. Tue .
"Quality assurance of temporal variability of natural decay chain and neutron induced background for low-level NORM analysis". United States. https://doi.org/10.1007/s10967-015-4467-9. https://www.osti.gov/servlets/purl/1296660.
@article{osti_1296660,
title = {Quality assurance of temporal variability of natural decay chain and neutron induced background for low-level NORM analysis},
author = {Yoho, Michael and Porterfield, Donivan R. and Landsberger, Sheldon},
abstractNote = {In this study, twenty-one high purity germanium (HPGe) background spectra were collected over 2 years at Los Alamos National Laboratory. A quality assurance methodology was developed to monitor spectral background levels from thermal and fast neutron flux levels and naturally occurring radioactive material decay series radionuclides. 238U decay products above 222Rn demonstrated minimal temporal variability beyond that expected from counting statistics. 238U and 232Th progeny below Rn gas displayed at most twice the expected variability. Further, an analysis of the 139 keV 74Ge(n, γ) and 691 keV 72Ge(n, n') spectral features demonstrated temporal stability for both thermal and fast neutron fluxes.},
doi = {10.1007/s10967-015-4467-9},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 3,
volume = 307,
place = {United States},
year = {Tue Sep 22 00:00:00 EDT 2015},
month = {Tue Sep 22 00:00:00 EDT 2015}
}
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