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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.
R. Breun, D. Brouchous, D. Diebold, R. Fonck, N. Hershkowitz, T. Intrator, Y.J. Kim, M. Kishinevsky, W. LIa, R. Majeski, J. Pew, P. Probert, E.Y. Wanga, Y. Wena, H. Che, M. Doczy, G. McKee, J. Sorensen, T. Tanaka, M. Vukovic, P. Bellanb, M.R. Brownb
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1327-1330
Result of Large Experiment and Plasma Engineering | doi.org/10.13182/FST91-A29526
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Phaedrus-T is a moderate sized tokamak with low toroidal field and substantial radio frequency power capabilities. This machine has only recently become operational and full RF power is expected in the next year. The initial studies include edge modifications due to variable phased antenna structures and RF helicity current drive experiments. Spheromak particle refueling tests will be started in the Fall of 1991. The tokamak is also being used as a test site for diagnostic development.
