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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|Nonproliferation, Security, and Safeguards
Saturday, April 5, 2025|1:40–3:00PM MDT|Gran Quivera 1
Session Chair:
Yuliia Trujillo
Alternate Chair:
Matthew J. Lazaric
Session Organizer:
Ashley Machado
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Spectral Feature Selection Approaches for Weapons Grade Plutonium Classification with GADRAS-DRF
1:40–2:00PM MDT
Tanner Heatherly (Oregon State), Camille Palmer (Oregon State)
Paper
Improvements in Line Broadening for Simulating Microcalorimetric Gamma Spectroscopy
2:00–2:20PM MDT
James T. Cahill (Virginia Commonwealth Univ.), Patience Obasi (Virginia Commonwealth Univ.), Braden Goddard (Virginia Commonwealth Univ.)
Feynman-Y Measurements of Cm-244 and Cf-252 Sources with Organic Scintillators
2:20–2:40PM MDT
Oscar P. Stennes (Univ. Michigan), Flynn B. Darby (Univ. Michigan), Juliann R. Lamproe (Univ. Michigan), Shaun D. Clarke (Univ. Michigan), Sara A. Pozzi (Univ. Michigan)
Modeling of Scintillation and Semiconductor Detectors for Nonproliferation Applications
2:40–3:00PM MDT
Tyrell B. Simmons (Virginia Commonwealth Univ.), Aristidis Loumis (Virginia Commonwealth Univ.), Braden Goddard (Virginia Commonwealth Univ.)
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