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2026 ANS Winter Conference & Expo
November 15–18, 2026
Phoenix, AZ|Arizona Grand Resort & Spa
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Posiva begins drilling disposal holes at Finland’s Onkalo repository
Last week the Finnish nuclear waste management company Posiva began drilling holes for final disposal at the Onkalo deep geological repository, near the Olkiluoto nuclear power plant in western Finland. The company’s German-made Deposition Hole Boring Machine (DHBM) took about 10 hours to drill the first hole, with a depth of 8.4 meters and a diameter of 1.75 meters, into the 1.9-billion-year-old bedrock. This is the first deposition hole intended for an iron-copper canister containing spent nuclear fuel—though test holes have been drilled at the site since 2022.
The Onkalo repository received a favorable safety assessment from the Radiation and Nuclear Safety Authority of Finland earlier in August.
Technical Session|Sponsored by MSTD
Tuesday, June 9, 2020|4:35–6:20PM EDT|7
Session Chair:
Kallie E. Metzger
Alternate Chair:
Kenneth J. Geelhood
Session Organizer:
Staff Producer:
Jay Bogardus (American Nuclear Society)
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In Situ Mechanical Testing of AM 316L Steel-TCR Core Material
K. A. Terrani (ORNL), R. R. Dehoff (ORNL), T. S. Byun (ORNL), M. N. Gussev (ORNL)
Paper
Evaluation of Heat Treatments for Additively Manufactured 316L
C. Joslin (ORNL), T.S. Byun (ORNL), R. Dehoff (ORNL), L. Donovan (ORNL), J. Simpson (ORNL)
Modeling Time-Dependent Surrogates of Additive-Manufactured Nuclear Fuels Processes
Yipeng Gao (INL), Wen Jiang (INL), Congjian Wang (INL)
In-situ High-energy X-ray Study of Deformation Mechanisms in Additively Manufactured 316 Stainless Steel
Xuan Zhang (ANL), Jonathan Almer (ANL), Peter Kenesei (ANL), Jun-Sang Park (ANL), Meimei Li (ANL)
