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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Getting back to yes: A local perspective on decommissioning, restart, and responsibility
For 45 years, Duane Arnold Energy Center operated in Linn County, Ia., near the town of Palo and just northwest of Cedar Rapids. The facility, owned by NextEra Energy, was the only nuclear power plant in the state.
In August 2020, a historic derecho swept across eastern Iowa with winds approaching 140 miles per hour. Damage to the plant’s cooling towers accelerated a shutdown that had already been planned, and the facility entered decommissioning soon after, with its fuel removed in October of that year. Iowa’s only nuclear plant had gone off line.
Today the national energy landscape looks very different than it did just six short years ago. Electricity demand is rising rapidly as data centers, artificial intelligence infrastructure, advanced manufacturing, and electrification expand across the country. Reliable, carbon-free baseload power has become increasingly valuable. In that context, Linn County has approved the rezoning necessary to support the recommissioning and restart of Duane Arnold and is actively supporting NextEra’s efforts to secure the remaining state and federal approvals.
Technical Session|Sponsored by RPD
Wednesday, June 14, 2023|1:00–2:45PM EDT|Marriott 9
Session Chair:
Jason Hou (NCSU)
Alternate Chair:
Pavel V. Tsvetkov
Session Organizer:
Massimiliano Fratoni (UC Berkeley)
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Reactor Physics Validation Roadmap for the High Flux Isotope Reactor Conversion to Low-Enriched Uranium Fuel
1:00–1:20PM EDT
D. Chandler (ORNL), J.W. Bae (ORNL), D. Hartanto (ORNL), C.W. Sizemore (ORNL), K.M. Burg (ORNL), J.R. Burns (ORNL)
Paper
252Cf Production at the High Flux Isotope Reactor: Nuclear Data Selection and LEU Conversion Impacts
1:20–1:40PM EDT
D. Hartanto (ORNL), D. Chandler (ORNL), J.W. Bae (ORNL), J.R. Burns (ORNL), C. Sizemore (ORNL)
Isotope Production and Materials Irradiation Research Studies to Support HFIR LEU Conversion Assessment
1:40–2:00PM EDT
D. Chandler (ORNL), D. Hartanto (ORNL), J.W. Bae (ORNL), J.R. Burns (ORNL), J.R. Griswold (ORNL)
Peaking Factor Uncertainty of VERA-MPACT with the ENDF/B-VII.1 51-Group Library Through Benchmark Calculations for Critical Experiments
2:00–2:20PM EDT
Kang Seog Kim (ORNL)
Simulation of the Sodium-Cooled Fast Reactor Benchmark Cores Using MC2-3/Griffin
2:20–2:40PM EDT
Changho Lee (ANL), Somyung Park (ANL), Shikhar Kumar (ANL), Nicolas Stauff (ANL), Zhiwen Xu (TerraPower), Jacob Hader (TerraPower)
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