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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Deep geologic repository progress—2025 Update
Editor's note: This article has was originally published in November 2023. It has been updated with new information as of June 2025.
Outside my office, there is a display case filled with rock samples from all over the world. It contains a disk of translucent, orange salt from the Waste Isolation Pilot Plant near Carlsbad, N.M.; a core of white-and-bronze gneiss from the site of the future deep geologic repository in Eurajoki, Finland; several angular chunks of fine-grained, gray claystone from the underground research laboratory at Bure, France; and a piece of coarse-grained granite from the underground research tunnel in Daejeon, South Korea.
Ichiro Yamamoto, Akira Kaba, Akira Kanagawa
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 590-595
Tritium Processing | Proceedings of the Third Topical Meeting on Tritium Technology in Fission, Fusion and Isotopic Applications (Toronto, Ontario, Canada, May 1-6, 1988) | doi.org/10.13182/FST88-A25198
Articles are hosted by Taylor and Francis Online.
Experiments of H2-HT isotope separation were carried out with a hot wire column of 3 cm in diameter and 1.5 m in length. Separation factors were measured with cut changed from 0.1 to 0.9, and other operational conditions; pressure, feed rate and temperature difference, fixed. First, the feed rate was altered under the constant pressure, and next, pressure was changed. Experimental results were compared with those from an axisymmetric separative analysis, based on a Newton iterative solution of a convection-diffusion equation. Pressure dependence of separation factors agreeed qualitatively with those from theory. The separative power has a maximum value at 0.12 ∼ 0.16 MPa, when the feed rate was under 100 cm3/m(at 0.1 MPa, 25°C).
