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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Fusion Science and Technology
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Innovation for advanced fuels at SRNL
As the only Department of Energy Office of Environmental Management–sponsored national lab, Savannah River National Laboratory has a history deeply rooted in environmental stewardship efforts such as nuclear material processing and disposition technologies. SRNL’s demonstrated expertise is now being leveraged to solve nuclear fuel supply -chain obstacles by providing a source of high-assay low-enriched uranium fuel for advanced reactors.
R.A. Surette, R.G.C. McElroy
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 1141-1146
Tritium Safety | doi.org/10.13182/FST88-1
Articles are hosted by Taylor and Francis Online.
This presentation describes some experiments to investigate the removal, regrowth and evolution of tritium from stainless steel planchets that had been exposed to elemental tritium. The total tritium sorbed onto and into a planchet was measured by heating the planchet and collecting the evolved tritium. The removable surface activity was determined from swipe measurements. The evolution of tritium from the planchets was determined by leaving some of the planchets exposed to air for almost one year and then measuring the tritium remaining. The swipe experiments indicate that a removal efficiency of 10% is representative but usually conservative for an undisturbed surface. In general, the fraction of activity that is removable is dependent on the surface history. If a cleaned surface is left undisturbed for a few days removable surface activity may regrow. If the surface is left undisturbed for a long period of time (months) some of the tritium in the planchet will be lost to the atmosphere.