Geophysical investigation of 218-W-4C trenches {number_sign}1 and {number_sign}4, 200 west [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 7 pages : digital, PDF file
Additional Creators:: Westinghouse Electric Corporation, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The objective of these surveys was to determine the effectiveness of Ground-Penetrating Radar (GPR) for defining the depth and location of barrels in Burial Ground 218-W-4C, 200 West area of the Hanford Reservation. GPR data were collected in a portion of trench {number_sign}1-module 3 and trench {number_sign}4. The GPR system used for this work utilized a 300-megahertz antenna to transmit the electromagnetic energy into the ground. A percentage of the transmitted energy is reflected back to a receiving antenna where variations in the return signal are recorded. Common reflectors include natural geologic conditions such as bedding, cementation moisture and clay, or man-made objects such as pipes, barrels, foundations and buried wires. Depth of penetration, which varies with changes in geology, ranged from 10 to 15 feet for this survey. The method is limited in depth by transmit power, receiver sensitivity and attenuation of the transmitted energy. Depth of investigation is also limited by highly conductive materials, such as metal drums, which reflect all the transmitted energy, preventing investigation below such objects. Display and interpretation of the data are similar to that of seismic reflection data. In some areas interpretations can be straight forward, however, unknown parameters within a highly variable subsurface often yield complex data.

Report Numbers:

E 1.99:whc-sd-en-ti--174
whc-sd-en-ti--174

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Other Subject(s):

Note:

Published through SciTech Connect.
09/01/1993.
"whc-sd-en-ti--174"
"DE93040394"
Mitchell, T.H.; Bergstrom, K.A.; Kiesler, J.P.

Type of Report and Period Covered Note:

Topical; 12/31/1993 - 12/31/1993

Funding Information:

AC06-87RL10930

View MARC record | catkey: 14146290