Design and construction of a Cerenkov counter for in situ monitoring of 90Sr in groundwater

Migration of groundwater contamination from beneath the Hanford Site into the Columbia River creates a need for in situ 90 Sr monitoring. The prototype monitor discussed here was designed for deployment downwell and provides near-real-time determination of the 90 Sr concentration in a two-liter grou...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2008-07, Vol.277 (1), p.235-239
Main Authors: Brodzinski, R. L., Runkle, R. C., Hartman, J. S., Ashbaker, E. D., Douglas, M., Jordan, D. V., McCormick, K. R., Sliger, W. A., Todd, L. C.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Environmental Radioactivity
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
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Summary:Migration of groundwater contamination from beneath the Hanford Site into the Columbia River creates a need for in situ 90 Sr monitoring. The prototype monitor discussed here was designed for deployment downwell and provides near-real-time determination of the 90 Sr concentration in a two-liter groundwater sample. This manuscript discusses the design, construction and preliminary results for a prototype monitor. Calibration and testing results of the as-built system show qualitative agreement between simulated predictions and experimental results. Downwell and laboratory tests demonstrate a sensitivity to 90 Sr at concentrations below 8 pCi/l (0.3 Bq/1) at a 90% confidence level in measurement times of less than four hours.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-008-0736-1