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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
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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.
J.M. Miller, S.R. Bokwa, D.S. Macdonald, R.A. Verrall
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 996-999
Blanket Technology | doi.org/10.13182/FST91-A29472
Articles are hosted by Taylor and Francis Online.
Tritium release from 1.5 mm diameter Li2ZrO3 spheres has been examined in post-irradiation annealing tests, to support the Canadian sphere-pac breeder-blanket concept. Rapid tritium release was observed over the complete temperature range studied, 573–723 K. The tritium was recovered primarily in the tritiated water (HTO) form, except when He-1% H2 sweep gas was used and the temperature was ≥673 K. Hydrogen added to the sweep gas increased the release rate. The features of the tritium release curves from the on-line ionization chamber indicate some unexplained tritium release behaviour, not previously seen with LiA1O2 or Li2O.
