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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
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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|Sponsored by RPD|Cosponsored by ANSTD, OPD
Tuesday, June 9, 2020|4:35–6:20PM EDT|9
Session Chair:
Kristin N. Smith
Alternate Chair:
Pavel V. Tsvetkov (LANL)
Session Organizer:
Track Organizer:
Staff Producer:
Jessica Vazquez (American Nuclear Society)
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Neutronics Analysis of Cold Critical KRUSTY Experiments using MCNP and Serpent
Pavel Tsvetkov (Texas A&M Univ.), Rene Sanchez (LANL), Theresa Cutler (LANL), Jesson Hutchinson (LANL), Kristin Smith (Texas A&M Univ.)
Paper
Preliminary Study of Model Predictive Control for Load Follow Operation of Holos Reactor
Sooyoung Choi (Univ. of Michigan), Brendan Kochunas (Univ. of Michigan), Claudio Filippone (HolosGen LLC), Volkan Seker (Univ. of Michigan), Shai Kinast (Univ. of Michigan/Nuclear Research Center Negev)
Linear Stability Analysis of HTR-like Micro-reactors
Volkan Seker (Univ. of Michigan), Brendan Kochunas (Univ. of Michigan), Claudio Filippone (HolosGen LLC), Erez Gilad (Ben-Gurion Univ. of the Negev), Sooyoung Choi (Univ. of Michigan), Shai Kinast (Nuclear Research Center Negev/Univ. of Michigan), Doron Sivan (Ben-Gurion Univ. of the Negev/Israel Atomic Energy Commission)
