Geophysical tomography imaging system. Final CRADA report
- Lockheed Martin Energy Research, Oak Ridge, TN (United States)
- Geophex, Ltd., Raleigh, NC (United States)
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).
- Research Organization:
- Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 665884
- Report Number(s):
- Y/AMT-612; ON: DE98058309; CRN: C/Y-1295-0392; TRN: AHC29819%%38
- Resource Relation:
- Other Information: PBD: 20 May 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Machining and inspection of structural ceramic components. CRADA final report for CRADA number Y-1292-0078
Geophysics: Building E5282 decommissioning, Aberdeen Proving Ground