Waste-surface mapping of the Fernald K-65 silos using a structured light measurement system

Technical Report · Thu Oct 01 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/10103256· OSTI ID:10103256

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

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

A remotely operated surface-mapping measurement system was developed by the Robotics & Process Systems Division at Oak Ridge National Laboratory for use in the K-65 waste-storage silos at Fernald, Ohio. The mapping system used three infrared line-generating laser diodes as illumination sources and three high-resolution, low-lux, calibrated, black-and-white, charge-coupled-device video cameras as receivers. These components were combined to form structured light source range and direction sensors with six different possible emitter-receiver pairs. A technology demonstration and predeployment tests were performed at Fernald using the empty Silo 4 into which was placed rectangular objects of known dimensions. These objects were scanned by the structured light sources to demonstrate functionality and verify that the system was giving sufficiently accurate range data in three dimensions. The structured light sources were deployed in Silos 1 and 2 to scan the waste surfaces. The resulting data were merged to create three-dimensional maps of those surfaces. A bentonite clay cap was placed over the waste surfaces and surface maps were obtained. The change in surface height before and after bentonite addition was utilized as a measure of clay cap thickness.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10103256
• Report Number(s): ORNL/TM--12185; ON: DE93002874
• Country of Publication: United States
• Language: English

Related Subjects

052002
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
440600
47 OTHER INSTRUMENTATION
BENTONITE
CALIBRATION
DATA ACQUISITION
FEED MATERIALS PRODUCTION CENTER
LIGHT SOURCES
MAPPING
MEASURING INSTRUMENTS
MEASURING METHODS
OCCUPATIONAL SAFETY
OPTICAL INSTRUMENTATION
RADIOACTIVE WASTE STORAGE
RADIOACTIVITY
REMEDIAL ACTION
REMOTE HANDLING
SHAPE
STORAGE FACILITIES
SURFACES
WASTE DISPOSAL AND STORAGE