{sup 208}Tl and {sup 24}Na Gamma Sources for Tracing soil Water Movement with Deuterium [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2001.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: vp : digital, PDF file
Additional Creators:: United States. Department of Energy. Savannah River Site, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The heavy water soil water tracer technique is based on the reaction of high-energy gamma photons with deuterium to indicate the tracer's location. The high-energy gamma sources ²°⁸Tl and ²⁴Na were compared in their effectiveness to produce neutrons from heavy water. In tests with vials of heavy water at various locations in 208-liter (55-gallon) drums of dry and moist soil, ²⁴Na gave 23 percent higher neutron count rates than ²°⁸Tl, but this was more than offset by its shorter effective half-life (15 hours vs. 1.9 years).

Report Numbers:

E 1.99:dp-ms-68-43
dp-ms-68-43

Subject(s):

Environmental Sciences

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Note:

Published through SciTech Connect.
08/29/2001.
"dp-ms-68-43"
"Contract AT(07-2)-1"
Soil Science Society of America, New Orleans, LA (US), 11/10/1968--11/15/1968.
Hawkins, R.H.

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