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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Latest News
ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
G. Bellanger, J. J. Rameau
Fusion Science and Technology | Volume 31 | Number 2 | March 1997 | Pages 185-197
Technical Paper | Tritium System | doi.org/10.13182/FST97-A30821
Articles are hosted by Taylor and Francis Online.
A study was carried out to ascertain the diffusion and adsorption parameter values for tritiated water in contact with palladium-silver cathodic membranes with and without palladium black deposits. It is shown that the amount of diffused and trapped tritium, the retrodiffusion, diffusion coefficient, tritium concentrations in the alloy sublayer, and diffusion layer thickness depend on the applied cathodic potential, temperature, palladium-silver membrane thickness, palladium black deposits on the cathodic surface, and time. With a palladium black deposit on the palladium-silver, the tritium adsorption and diffusion increase. Parameter values including the activation energy are determined from electrochemical impedance spectroscopy, voltammetry, permeation experiments, and chronocoulometry.