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Certification of the NAC-LWT Cask for Shipment of Sodium Debris Bed Experiments

[+] Author Affiliations
Yung Liu, Vikram Shah, Ralph Fabian

Argonne National Laboratory, Argonne, IL

James Shuler

Department of Energy, Washington, D.C.

Paper No. PVP2008-61241, pp. 623-630; 8 pages
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 7: Operations, Applications and Components
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4830-2 | eISBN: 0-7918-3828-5
  • Copyright © 2008 by U.S. Government and UChicago Argonne LLC, Operator of Argonne National Laboratory


The Department of Energy Headquarters Certifying Official has issued a Certificate of Compliance for the shipment of sodium debris bed experiments (DBE) in the NAC International’s Legal Weight Truck (NAC-LWT) casks. The shipment is part of a major de-inventory project at Sandia National Laboratories. The sodium debris bed experiments consist of crucibles containing UO2 immersed in sodium. The uranium is 93% enriched U235 . Potential sodium-water reaction and criticality safety under hypothetical accident conditions of transport are the two major technical issues for the design and certification of the NAC-LWT casks for the DBE shipment. The certification review took ≈ 13 months, including one round of questions and responses and source-verification QA audits of the fabrication and welding of the DBE transport canisters at two locations.

Copyright © 2008 by U.S. Government and UChicago Argonne LLC, Operator of Argonne National Laboratory
Topics: Sodium



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