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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Nuclear Science and Engineering
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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|Space Nuclear Propulsion
Monday, May 5, 2025|3:15–4:55PM CDT|SPOC B (Space & Rocket Center)
Session Chair:
Jarvis Caffrey (NASA Marshall Space Flight Center)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Effects of Microstructure on Hydrogen Retention in Metal Hydride Moderators
3:15–3:21PM CDT
Jianqi Xi (Univ. Illinois, Urbana-Champaign)
Paper
Hydrogen Corrosion Model of Nuclear Thermal Propulsion Carbide Fuels
3:21–3:27PM CDT
Kai E. Duemmler (LANL), Christopher Matthews (LANL), Erofili Kardoulaki (LANL), Michael W. D. Cooper (LANL)
Global HTGR Effort and Supply Chain
3:27–3:33PM CDT
Peter Ewing (Colorado Nuclear Alliance)
Presentation Slides (Visible to Attendees) — NETS Final Slides
Electrodeposition of a Protective Zirconium Coating on Uranium Nitride
3:33–3:39PM CDT
Jarom Chamberlain (LANL), Adrien Terricabras (LANL), Rami Batrice (LANL), Tim Coons (LANL), Marisa Monreal (LANL)
Effects of Hydrogen Environment Testing on Zirconium Carbide Material
3:39–3:45PM CDT
Scarlett Widgeon Paisner (LANL), Joseph C. Schaeperkoetter (LANL), Tyler J. Gerczak (ORNL), Matt Kurley (ORNL), Dylan Richardson (ORNL), Amanda Greenlaw (BWX Technologies), John Salasin (BWX Technologies), Sabrina McCoy (BWX Technologies), Sabyasachi Sen (Univ. California, Davis), Erofili Kardoulaki (LANL), Kenneth McClellan (LANL)
Advances in the Modeling and Simulation of NTPs Using OpenFOAM and OpenModelica
3:45–3:51PM CDT
Carlo Fiorina (TAMU), Benjamin Stroup (TAMU), Zachary Hughes (TAMU), Thomas Guilbaud (École Polytechnique Fédérale de Lausanne), Giovanni Nervi (École Polytechnique Fédérale de Lausanne), Alessandro Scolaro (Ecole Polytechnique Federale de Lausanne)
Thermophysical Properties of Refractory Carbides as NTP Surrogate Fuel
3:51–3:57PM CDT
Alexander T. Nadermann (Univ. Tennessee, Knoxville), Jonas Kessing (Univ. Tennessee, Knoxville), Praveen Negi (Stony Brook Univ.), David Sprouster (Stony Brook Univ.), Lance Snead (Stony Brook Univ.), Steven J. Zinkle (Univ. Tennessee, Knoxville)
Presentation Slides (Visible to Attendees)
Sintering Behavior and Homogeneity of Ti-Containing Tri-Carbides for Nuclear Thermal Propulsion
3:57–4:03PM CDT
Ethan Payne (Univ. Tennessee, Knoxville), Alex Nadermann (Univ. Tennessee, Knoxville), Sean Drewry (Univ. Tennessee, Knoxville), Steven Zinkle (Univ. Tennessee, Knoxville)
Design Activities of In-Situ Hydrogen Loops at MIT Reactor
4:03–4:09PM CDT
Patrick D. Riley (MIT), Nesrin O. Cetiner (MIT), David M. Carpenter (MIT), Koroush Shirvan (MIT)
High Temperature, Reactor Irradiation of Surrogate Coated Particle Fuel for Nuclear Thermal Propulsion
4:09–4:15PM CDT
Brandon A. Wilson (ORNL), Emily N. Hutchins (Univ. Tennessee, Knoxville), Eddie Lopez Honorato (ORNL), N. Dianne Ezell Bull (ORNL)
Nuclear Thermal Rocket Emulator for a Hardware in the Loop Testbed
4:15–4:21PM CDT
Brandon A. Wilson (ORNL), Wesley Williams (ORNL), Jono McConnell (ORNL), Craig Gray (ORNL), Charles Taylor (Louisiana State), N. Dianne Bull Ezell (ORNL)
Progress Toward Transient System Modeling of the Centrifugal Nuclear Thermal Rocket
4:21–4:27PM CDT
Taylor Hampson (MIT), Gyutae Park (MIT), Koroush Shirvan (MIT)
Preliminary Investigation on UZrCN Formation via Hydrogen Cyanide Synthesis for Nuclear Thermal Propulsion Applications
4:27–4:33PM CDT
James Zillinger (INL), Sarah Hamilton (INL)
Fabrication of Fuel Geometries via Fused Deposition Modeling 3D Printing and Spark Plasma Sintering for Nuclear Thermal Propulsion Applications
4:33–4:39PM CDT
Nathaniel Cavanaugh (Rensselaer Polytechnic Institute), Jie Lian (Rensselaer Polytechnic Institute)
ZrC Insulators for Space Nuclear Propulsion
4:39–4:45PM CDT
Bryant Kanies (LANL), Maria Kosmidou (LANL), Joseph Schaeperkoetter (LANL), Miles Beaux (LANL), Scarlett Widgeon Paisner (LANL), Erofili Kardoulaki (LANL)
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