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Proceedings Paper

Automatic Surface Flaw Inspection Of Nuclear Fuel Pellets
Author(s): D. R. McLemore; D. H. Nyman; R. S. Wilks
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Paper Abstract

The Hanford Engineering Development Laboratory (HEDL), operated by the Westinghouse Hanford Company, is developing automated equipment for fabrication and inspection of nuclear reactor fuels. One inspection process that has been evaluated is automatic surface flaw inspection of nuclear fuel pellets. The inspection technique involves projecting a well-defined spot of light onto the surface of a rotating pellet and collecting the light specularly reflected from the pellet's surface. The data form a binary description of the surface topography, which is then processed to identify and quantify flaw attributes before accept/reject decisions are made. The inspection apparatus is designed to operate at a rate of three pellets per second. A unique flaw interpretation algorithm is used to evaluate surface acceptability. The size and shape of a flaw is characterized by its area and by its area-to-perimeter ratio.

Paper Details

Date Published: 15 September 1978
PDF: 9 pages
Proc. SPIE 0143, Applications of Electronic Imaging Systems, (15 September 1978); doi: 10.1117/12.956558
Show Author Affiliations
D. R. McLemore, Hanford Engineering Development Laboratory (United States)
D. H. Nyman, Hanford Engineering Development Laboratory (United States)
R. S. Wilks, Westinghouse Mechanical Research Development Division (United States)


Published in SPIE Proceedings Vol. 0143:
Applications of Electronic Imaging Systems
Richard E. Franseen; Dieter K. Schroder, Editor(s)

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