Geophysical tomography imaging system. Final CRADA report

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Description

The Cooperative Research and Development Agreement (CRADA) between Lockheed Martin Energy Systems, Inc., and Geophex, Ltd., was established to investigate high-resolution, shallow acoustic imaging of the subsurface. The primary objectives of the CRADA were accomplished, including the evaluation of a new tomographic imaging algorithm and the testing and comparison of two different acoustic sources, the hammer/plate source and an electromagnetic vibratory source. The imaging system was composed essentially of a linear array of geophones, a digital seismograph, and imaging software installed on a personal computer. Imaging was most successful using the hammer source, which was found to be less susceptible ... continued below

Physical Description

11 p.

Creation Information

Norton, S.J. & Won, I.J. May 20, 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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Authors

  • Norton, S.J. Lockheed Martin Energy Research, Oak Ridge, TN (United States)
  • Won, I.J. Geophex, Ltd., Raleigh, NC (United States)

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Publisher

  • Oak Ridge Y-12 Plant
    Publisher Info: Oak Ridge Y-12 Plant, TN (United States)
    Place of Publication: Tennessee

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Description

The Cooperative Research and Development Agreement (CRADA) between Lockheed Martin Energy Systems, Inc., and Geophex, Ltd., was established to investigate high-resolution, shallow acoustic imaging of the subsurface. The primary objectives of the CRADA were accomplished, including the evaluation of a new tomographic imaging algorithm and the testing and comparison of two different acoustic sources, the hammer/plate source and an electromagnetic vibratory source. The imaging system was composed essentially of a linear array of geophones, a digital seismograph, and imaging software installed on a personal computer. Imaging was most successful using the hammer source, which was found to be less susceptible to ground roll (surface wave) interference. It is conjectured that the vibratory source will perform better for deeper targets for which ground roll is less troublesome. Potential applications of shallow acoustic imaging are numerous, including the detection and characterization of buried solid waste, unexploded ordnance, and clandestine man-made underground structures associated with treaty verification (e.g., tunnels, underground storage facilities, hidden bunkers).

Physical Description

11 p.

Notes

OSTI as DE98058309

Source

  • Other Information: PBD: 20 May 1998

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Identifier

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  • Other: DE98058309
  • Report No.: Y/AMT--612
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/665884 | External Link
  • Office of Scientific & Technical Information Report Number: 665884
  • Archival Resource Key: ark:/67531/metadc708340

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • May 20, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • April 8, 2016, 5:48 p.m.

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Citations, Rights, Re-Use

Norton, S.J. & Won, I.J. Geophysical tomography imaging system. Final CRADA report, report, May 20, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc708340/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.