Ultrasonic fingerprinting of structural materials: Spent nuclear fuel containers case-study

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Nowadays, NDT is mainly focused on safety purposes, but it seems possible to apply those methods to provide national and IAEA safeguards. The containment of spent fuel in storage casks could be dramatically improved in case of development of so-called "smart" spent fuel storage and transfer casks. Such casks would have tamper indicating and monitoring/tracking features integrated directly into the cask design. The microstructure of the containers material as well as of the dedicated weld seam is applied to the lid and the cask body and provides a unique fingerprint of the full container, which can be reproducibly scanned by using an appropriate technique. The echo-sounder technique, which is the most commonly used method for material inspection, was chosen for this project. The main measuring parameter is acoustic noise, reflected from material's artefacts. The purpose is to obtain structural fingerprinting. Reference measurement and additional measurement results were compared. Obtained results have verified the appliance of structural fingerprint and the chosen control method. The successful authentication demonstrates the levels of the feature points' compliance exceeding the given threshold which differs considerably from the percentage of the concurrent points during authentication from other points. Since reproduction or doubling of the proposed unique identification characteristics is impossible at the current state science and technology, application of this technique is considered to identify the interference into the nuclear materials displacement with high accuracy.

Original languageEnglish
Title of host publicationPhysics Procedia
PublisherElsevier
Pages505-509
Number of pages5
Volume70
DOIs
Publication statusPublished - 2015
EventICU International Congress on Ultrasonics, ICU 2015 - Metz, France
Duration: 11 May 201514 May 2015

Other

OtherICU International Congress on Ultrasonics, ICU 2015
CountryFrance
CityMetz
Period11.5.1514.5.15

Keywords

  • Dry Storage Cask
  • Feature extraction
  • Safeguards
  • Ultrasound testing

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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