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

Waste-surface mapping of the Fernald K-65 silos using a structured light measurement system 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.
Authors: ; ; ; ; ;
Publication Date:
OSTI Identifier:6755754
Report Number(s):ORNL/TM-12185
ON: DE93002874
DOE Contract Number:AC05-84OR21400
Resource Type:Technical Report
Data Type:
Research Org:Oak Ridge National Lab., TN (United States)
Sponsoring Org:DOE; USDOE, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 47 OTHER INSTRUMENTATION; FEED MATERIALS PRODUCTION CENTER; REMEDIAL ACTION; STORAGE FACILITIES; DATA ACQUISITION; SHAPE; BENTONITE; CALIBRATION; LIGHT SOURCES; MAPPING; MEASURING INSTRUMENTS; MEASURING METHODS; OCCUPATIONAL SAFETY; RADIOACTIVE WASTE STORAGE; RADIOACTIVITY; REMOTE HANDLING; SURFACES; CLAYS; FEED MATERIALS PLANTS; INDUSTRIAL PLANTS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MANAGEMENT; MATERIALS; NATIONAL ORGANIZATIONS; NUCLEAR FACILITIES; RADIATION SOURCES; RADIOACTIVE WASTE MANAGEMENT; SAFETY; STORAGE; US AEC; US DOE; US ERDA; US ORGANIZATIONS; WASTE MANAGEMENT; WASTE STORAGE 052002* -- Nuclear Fuels-- Waste Disposal & Storage; 440600 -- Optical Instrumentation-- (1990-)