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

Conference · · Transactions of the American Nuclear Society; (United States)
OSTI ID:6968042
; ; ;  [1];  [2];  [3]
  1. Oak Ridge National Lab., TN (United States)
  2. Westinghouse Environmental Management Co., Cincinnati, OH (United States)
  3. Sandia National Lab., 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 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 an absorber to capture the emitted radon gas. The authors 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.
OSTI ID:
6968042
Report Number(s):
CONF-920606--
Conference Information:
Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 65
Country of Publication:
United States
Language:
English