Quality assurance of temporal variability of natural decay chain and neutron induced background for low-level NORM analysis
Journal Article
·
· Journal of Radioanalytical and Nuclear Chemistry
- Univ. of Texas, Austin, TX (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1296660
- Report Number(s):
- LA-UR-15-22454
- Journal Information:
- Journal of Radioanalytical and Nuclear Chemistry, Vol. 307, Issue 3; Conference: International Conference on Methods and Applications of Radioanalytical Chemistry (MARC), Kona Keauhou, HI (United States), 12-14 Apr 2015; ISSN 0236-5731
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 1 work
Citation information provided by
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