Identification and integrity verification of final disposal casks

Dirk Holm; Wolfgang Osten; Ulrike Mieth; Werner P. O. Jueptner; Klaus Rudolf

doi:10.1117/12.194334

15 November 1994 Identification and integrity verification of final disposal casks

Dirk Holm, Wolfgang Osten, Ulrike Mieth, Werner P. O. Jueptner, Klaus Rudolf

Proceedings Volume 2248, Optical Measurements and Sensors for the Process Industries; (1994) https://doi.org/10.1117/12.194334
Event: Optics for Productivity in Manufacturing, 1994, Frankfurt, Germany

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.

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Dirk Holm, Wolfgang Osten, Ulrike Mieth, Werner P. O. Jueptner, and Klaus Rudolf "Identification and integrity verification of final disposal casks", Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); https://doi.org/10.1117/12.194334

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