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Proceedings Paper

Identification and integrity verification of final disposal casks
Author(s): Dirk Holm; Wolfgang Osten; Ulrike Mieth; Werner P. O. Jueptner; Klaus Rudolf
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Paper Abstract

Final disposal casks will be stored up to 60 years in an intermediate storage facility. Unauthorized access to the radioactive content has to be detected. For this reason a short weld seam acting as a seal is applied between the cask body and the lid. The seal has to be examined using unique and reproducible features characterizing the weld seams even under the influence of aging. Relief inspection is investigated for this task. Received images are segmented into slices corresponding to different altitude levels. Every slice shows a number of objects, which are analyzed by morphometrical and contour features. The identification algorithm is basically a supervised minimum distance classifier. The initial references are learned automatically by the system when a cask is introduced into the storage. References will be updated every time a cask is inspected.

Paper Details

Date Published: 15 November 1994
PDF: 9 pages
Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); doi: 10.1117/12.194334
Show Author Affiliations
Dirk Holm, Bremer Institut fuer Angewandte Strahltechnik (Germany)
Wolfgang Osten, Bremer Institut fuer Angewandte Strahltechnik (Germany)
Ulrike Mieth, Bremer Institut fuer Angewandte Strahltechnik (Germany)
Werner P. O. Jueptner, Bremer Institut fuer Angewandte Strahltechnik (Germany)
Klaus Rudolf, Gesellschaft fuer Nuklear-Service (Germany)

Published in SPIE Proceedings Vol. 2248:
Optical Measurements and Sensors for the Process Industries
Christophe Gorecki; Richard W. T. Preater, Editor(s)

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