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Conference Spotlight
2026 ANS Winter Conference & Expo
November 15–18, 2026
Phoenix, AZ|Arizona Grand Resort & Spa
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Nuclear Science and Engineering
October 2026
Nuclear Technology
Fusion Science and Technology
August 2026
Latest News
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
Monday, September 26, 2022|3:45–5:50PM PDT|Grand Pacific D
Session Chair:
Tanja Goričanec (Jožef Stefan Institute)
Alternate Chair:
Pedro Vaz (Tecnico Lisboa)
Session Organizer:
Thomas M. Miller (ORNL)
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Study on Effects of Pressurizer Cutting Scenario of Pressurizer in Pressurized Water Reactor
3:45–4:10PM PDT
Hak Yun Lee (Chosun Univ.), Min Ho Lee (Chosun Univ.), Sun il Kim (Chosun Univ.), Jong Soon Song (Chosun Univ.)
Paper
Dosimetry for Decommissioning of Nuclear Power Plants
4:10–4:35PM PDT
Reuven Rachamin (Helmholtz-Zentrum Dresden-Rossendorf), Joerg Konheiser (Helmholtz-Zentrum Dresden-Rossendorf), Astrid Barkleit (Helmholtz-Zentrum Dresden-Rossendorf), Marcus Seidl (PreussenElektra)
Assessment of Waste Form Acceptance Criteria for Phosphate-Based Geopolymer Waste Form to Immobilize Radioactive Borate Waste
4:35–5:00PM PDT
Byoungkwan Kim (Pohang Univ. Science and Technology), Jaehyuk Kang (Pohang Univ. Science and Technology), Younglim Shin (Pohang Univ. Science and Technology), Wooyong Um (Pohang Univ. Science and Technology)
Study of Activation in Fuel Assemblies for Decommissioning Tasks Optimization
5:00–5:25PM PDT
E. Jabaloyas (Univ. Politècnica de València), J. Ródenas (Univ. Politècnica de València), A. Querol (Florida Univ.), G. Verdu (Univ. Politècnica de València)
Decommissioning of Steam Reformers -- From Radiological Characterization to a Decommissioning Concept
5:25–5:50PM PDT
Luc Schlömer (WTI), Henning Keller (WTI), Sven Tittelbach (WTI)
