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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
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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|Sponsored by OPD
Wednesday, June 10, 2020|4:35–6:20PM EDT|3
Session Chair:
N. Dianne B. Ezell (ORNL)
Alternate Chair:
W. Neal Mann (The University of Texas at Austin)
Session Organizer:
Staff Producer:
John Fabian (American Nuclear Society)
This session is for technical papers relating to nuclear energy and nuclear power plant operations not covered by more specific session topics. Topics include, but are not limited to, nuclear power production; nuclear process heat; nuclear power plant design, construction, financing, and economics; and nuclear plant operations including safety and efficiency.
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To access paper attachments, you must be logged in and registered for the meeting.
Stochastic Analysis for Long Term Capital Structures, Systems, and Components Refurbishment and Replacement
Congjian Wang (INL), Diego Mandelli (INL), David Morton (Northwestern Univ.), Ivilina Popova (Texas State Univ.), Stephen Hess (Jensen Hughes), Shawn St. Germain (INL), Curtis Smith (INL)
Paper
Effective Nuclear Plant Waste Heat Utilization by a Bottoming Cryogenic Power Cycle
Alex Kravets (Veritask Energy Systems, Inc.), Don Grace (Veritask Energy Systems, Inc.)
IAEA Activities to Facilitate Near Term Deployment of SMRs
Frederik Reitsma (IAEA), M. Hadid Subki (IAEA), Gerardo Martinez-Guridi (IAEA)
Reference — Presentation made