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NRC cancels advanced reactor meeting due to government shutdown
The Nuclear Regulatory Commission has announced it is cancelling an upcoming advanced reactor stakeholder meeting, originally scheduled for November 19, due to the government shutdown and the limitations on staffing at the agency.
Y. Edao, H. Okitsu, H. Noguchi, S. Fukada
Fusion Science and Technology | Volume 60 | Number 3 | October 2011 | Pages 1163-1166
Blanket and Breeder Materials | Proceedings of the Ninth International Conference on Tritium Science and Technology | doi.org/10.13182/FST60-1163
Articles are hosted by Taylor and Francis Online.
We performed an experiment of H and D permeation through Li17Pb83 in the two-component (H+D) system by an unsteady permeation method to clarify interactions between H and D atoms. It was found that H and D permeate independently regardless of the H/D composition ratio in the upstream gas. Dissolution of H and D atoms into Li17Pb83 follows the Sieverts' law in the two-component system in a similar way to the single one. Diffusion of H and D in Li17Pb83 was the rate-determining step in the overall permeation process. An isotope effect of permeability between H and D was around 1.4 in the temperature range from 400°C to 700°C. The ratio of the isotope effect was in proportion to the square root of mass ratio of D to H. Tritium permeation can be estimated in a similar way.
