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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 RPSD
Wednesday, June 19, 2024|10:00–11:45AM PDT|Banyan C
Session Chair:
Adam Hecht
Alternate Chair:
Alexander Barzilov
Session Organizer:
Irina I. Popova
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MCNP6 Evaluation of Exposure Dose Rates from a 252Cf-Based Neutron Irradiator for NAA
10:00–10:20AM PDT
Livia Fernandes Barros (MIT), Jiankai Yu (MIT), Michael Philip Short (MIT), Tolga Durak (MIT), Edward Lamere (MIT), Mitchell S. Galanek (MIT), Akmal Safarov (Samarkand State Univ.), Haruko M. Wainwright (MIT)
Paper
Improvements on Oktavian Modeling with MCNP6.3
10:20–10:40AM PDT
Micky Dzur (LANL), Jerawan Armstrong (LANL), Chelsea D'Angelo (LANL)
Automated Vector Analysis Using Particle Swarm Optimization
10:40–11:00AM PDT
John C. Stooksbury (Bechtel)
Solution Grown Hybrid Halide Perovskite Single Crystals for Photon Detectors
11:00–11:20AM PDT
Kaleab Ayalew (Univ. Nevada, Las Vegas), Shea Tonkinson (Univ. New Mexico), Alexandria Ragsdale (Univ. New Mexico), Maya Narayanan Kutty (Univ. New Mexico), Ganesh Balakrishnan (Univ. New Mexico), Adam Hecht (Univ. New Mexico), Jaeyun Moon (Univ. Nevada, Las Vegas), Alexander Barzilov (Univ. Nevada, Las Vegas)
Tempest™: A Monte Carlo Code for Radiation Transport with Combined Native CAD and CSG Geometries
11:20–11:30AM PDT
Carl Hughes (Orthrus Software), Peter Taylor (Orthrus Software), Daniel Cork (Cerberus Nuclear)
Attachment — Tempest Paper
Integrating AI Assistant Technology into Cyclone™ for Simplified MCNP® Syntax Generation
11:30–11:40AM PDT
Daniel Cork (Cerberus Nuclear), John Billingsley (Cerberus Nuclear), Tu Nguyen (Cerberus Nuclear), Andrew Smith (Cerberus Nuclear), Peter Taylor (Orthrus Software)
Attachment — Cyclone Sage Paper
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