Scoping measurements of radionuclides in L Lake with an underwater HPGe detector

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This study of L Lake was conducted to determine whether the distribution of man-made radiation levels had changed from the time preceding the filling of the newly created lake in 1985. Overflight gamma measurements by EG&G in 1985 mapped the man-made radiation levels, indicating that significant levels were only detected from former stream beds that were to be covered by the lake. the present scoping gamma measurements were consistent with these earlier findings, indicating no major evidence of movement of the radioactivity. These results will be available to guide decisions concerning future plans for the lake. Gamma-emitting radionuclides of L … continued below

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36 p.

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Dunn, D.L.; Win, W.G. & Bresnahan, P.J. June 1, 1996.

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Description

This study of L Lake was conducted to determine whether the distribution of man-made radiation levels had changed from the time preceding the filling of the newly created lake in 1985. Overflight gamma measurements by EG&G in 1985 mapped the man-made radiation levels, indicating that significant levels were only detected from former stream beds that were to be covered by the lake. the present scoping gamma measurements were consistent with these earlier findings, indicating no major evidence of movement of the radioactivity. These results will be available to guide decisions concerning future plans for the lake. Gamma-emitting radionuclides of L Lake were examined in situ with an underwater HPGe detector and further studied by retrieving various sediment samples for analysis by HPGe gamma spectrometry in the Underground Counting Facility. The predominant man-made radionuclide detected was {sup 137}Cs; it had about 100 times greater activity than {sup 60}Co, which was the only other man-made radionuclide that was detected above trace levels.

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36 p.

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INIS; OSTI as DE96011106

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  • Other Information: PBD: [1996]

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  • June 1, 1996

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  • June 29, 2015, 9:42 p.m.

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Dunn, D.L.; Win, W.G. & Bresnahan, P.J. Scoping measurements of radionuclides in L Lake with an underwater HPGe detector, report, June 1, 1996; Aiken, South Carolina. (https://digital.library.unt.edu/ark:/67531/metadc669523/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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