Final results of the application of a structured light source for surface mapping in the Fernald K-65 silos

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:5720420

Burks, B L; DePiero, F W; Dinkins, M A; Rowe, J C ^[1]; Jacoboski, D L ^[2]; Selleck, C B ^[3]

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1. Oak Ridge National Lab., TN (United States)
2. Westinghouse Environmental Management Co. of Ohio, Cincinnati, OH (United States)
3. Sandia National Labs., Albuquerque, NM (United States)

During 1991, a remotely operated surface mapping measurement system was developed at Oak Ridge National Laboratory for use in the K-65 waste storage silos at Fernald, Ohio. Preliminary reports have been presented discussing the planned development project and intermediate results. In this report the authors discuss the sensor system development and present the final results of the hot deployment. The K-65 silos are above-ground, domed, concrete and reinforced steel structures built in the early 1950s to store uranium residue from the Feed Materials Production Center (FMPC), Fernald, Ohio. Two of the four silos contain a waste material that is rich in radium content and, hence, generate large amounts of radon gas. During the fall of 1991, a layer of bentonite clay was deposited over the entire waste surface in silos 1 and 2. This bentonite layer was placed to act as absorber to capture the emitted radon gas. We describe the application of a structured light source to obtain waste surface contour data before bentonite deposition and to obtain bentonite surface contour data after deposition. The thickness of bentonite at any point along the waste surface can be determined by the change in surface height. Development of this technology and cold testing in silo 4 was sponsored by the DOE Environmental Restoration and Waste Management Office of Technology (OTD) while hot deployment was sponsored by the DOE Office of Environmental Restoration.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5720420
• Report Number(s): CONF-920606-11; ON: DE92008894
• Country of Publication: United States
• Language: English

Related Subjects

052002 -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
440600* -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
ACTINIDES
ALKALINE EARTH METALS
BENTONITE
CLAYS
DEPOSITION
ELEMENTS
FLUIDS
GASES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIGHT SOURCES
MAPPING
MATERIALS
METALS
NONMETALS
RADIATION SOURCES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIUM
RADON
RARE GASES
SURFACES
SYNTHESIS
URANIUM
WASTES