skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Prediction of sub-surface 37 Ar concentrations at locations in the Northwestern United States

Abstract

The Comprehensive Nuclear Test-Ban Treaty, which is intended to prevent nuclear weapon testing, includes a verification regime, which provides monitoring to identify potential nuclear testing. The presence of elevated 37Ar is one way to identify subsurface nuclear testing. However, the naturally occurring formation of 37Ar in the subsurface adds a complicating factor. Prediction of the naturally occurring concentration of 37Ar can help to determine if a measured 37Ar concentration is elevated. The naturally occurring 37Ar background concentration has been shown to vary between less than 1 mBq/m3 to greater than 100 mBq/m3 (Riedmann and Purtschert 2011). Here, we evaluate a model for predicting the average concentration of 37Ar at any depth under transient barometric pressures, and compare it with measurements. This model is shown to compare favorably with concentrations of 37Ar measured at multiple locations in the Northwestern United States.

Authors:
; ORCiD logo; ; ; ; ; ORCiD logo
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1427900
Report Number(s):
PNNL-SA-124417
Journal ID: ISSN 0265-931X; 400809000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Environmental Radioactivity; Journal Volume: 181; Journal Issue: C
Country of Publication:
United States
Language:
English

Citation Formats

Fritz, Bradley G., Aalseth, Craig E., Back, Henning O., Hayes, James C., Humble, Paul H., Ivanusa, Pavlo, and Mace, Emily K. Prediction of sub-surface 37 Ar concentrations at locations in the Northwestern United States. United States: N. p., 2018. Web. doi:10.1016/j.jenvrad.2017.10.005.
Fritz, Bradley G., Aalseth, Craig E., Back, Henning O., Hayes, James C., Humble, Paul H., Ivanusa, Pavlo, & Mace, Emily K. Prediction of sub-surface 37 Ar concentrations at locations in the Northwestern United States. United States. doi:10.1016/j.jenvrad.2017.10.005.
Fritz, Bradley G., Aalseth, Craig E., Back, Henning O., Hayes, James C., Humble, Paul H., Ivanusa, Pavlo, and Mace, Emily K. Mon . "Prediction of sub-surface 37 Ar concentrations at locations in the Northwestern United States". United States. doi:10.1016/j.jenvrad.2017.10.005.
@article{osti_1427900,
title = {Prediction of sub-surface 37 Ar concentrations at locations in the Northwestern United States},
author = {Fritz, Bradley G. and Aalseth, Craig E. and Back, Henning O. and Hayes, James C. and Humble, Paul H. and Ivanusa, Pavlo and Mace, Emily K.},
abstractNote = {The Comprehensive Nuclear Test-Ban Treaty, which is intended to prevent nuclear weapon testing, includes a verification regime, which provides monitoring to identify potential nuclear testing. The presence of elevated 37Ar is one way to identify subsurface nuclear testing. However, the naturally occurring formation of 37Ar in the subsurface adds a complicating factor. Prediction of the naturally occurring concentration of 37Ar can help to determine if a measured 37Ar concentration is elevated. The naturally occurring 37Ar background concentration has been shown to vary between less than 1 mBq/m3 to greater than 100 mBq/m3 (Riedmann and Purtschert 2011). Here, we evaluate a model for predicting the average concentration of 37Ar at any depth under transient barometric pressures, and compare it with measurements. This model is shown to compare favorably with concentrations of 37Ar measured at multiple locations in the Northwestern United States.},
doi = {10.1016/j.jenvrad.2017.10.005},
journal = {Journal of Environmental Radioactivity},
number = C,
volume = 181,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2018},
month = {Mon Jan 01 00:00:00 EST 2018}
}