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The Use of Digital Radiography in the Evaluation of Radioactive Materials Packaging Performance Testing

[+] Author Affiliations
Cecil G. May, Lawrence F. Gelder, Boyd D. Howard

Savannah River National Laboratory, Aiken, SC

Paper No. PVP2007-26590, pp. 509-519; 11 pages
doi:10.1115/PVP2007-26590
From:
  • ASME 2007 Pressure Vessels and Piping Conference
  • Volume 7: Operations, Applications and Components
  • San Antonio, Texas, USA, July 22–26, 2007
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4285-1 | eISBN: 0-7918-3804-8
  • Copyright © 2007 by Washington Savannah River Company LLC

abstract

New designs of radioactive material shipping packages are required to be evaluated in accordance with 10 CFR Part 71, Packaging and Transportation of Radioactive Material. This paper will discuss the use of digital radiography to evaluate the effects of the tests required by 10 CFR 71.71, Normal Conditions of Transport (NCT), and 10 CFR 71.73, Hypothetical Accident Conditions (HAC). One acceptable means of evaluating packaging performance is to subject packagings to the series of NCT and HAC tests. The evaluation includes a determination of the effect on the packaging by the conditions and tests. Historically, that determination has required that packagings be cut and sectioned to learn the actual effects on internal components, either after each test to document the effects of that test, or after all testing is complete which determines the cumulative effect on the package. Digital radiography permits the examination of internal packaging components without sectioning a package. This allows a single package to be subjected to the entire series of tests. After each test, the package is digitally radiographed and the effects of particular tests evaluated. Radiography reduces the number of packages required for testing and also reduces labor and materials required to section and evaluate numerous packages. This paper will include a description of the digital radiography equipment used in the testing and evaluation of the 9977 package at SRNL. The equipment is capable of making a single radiograph of a full-sized package in one exposure. Radiographs will be compared to sectioned packages that show actual conditions compared to radiographic images.

Copyright © 2007 by Washington Savannah River Company LLC

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