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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, November 18, 2020|4:50–6:30PM EST
Session Chair:
Igor Remec
Alternate Chair:
Irina I. Popova
Session Organizer:
Staff Producer:
Julie Bry (American Nuclear Society)
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Supplemental Shielding for the Advanced Photon Source Upgrade Particle Accumulator Ring
Uli Wienands (Argonne National Laboratory), Chih-yuan Yao (Argonne National Laboratory), Kent Wootton (Argonne National Laboratory), Bradley J. Micklich (Argonne National Laboratory), Stanley Wiedmeyer (Argonne National Laboratory), John Vacca (Argonne National Laboratory), Greg Fystro (Argonne National Laboratory), Victor Guarino (Argonne National Laboratory), Jeffrey Dooling (Argonne National Laboratory), Glenn Decker (Argonne National Laboratory), Joseph Calvey (Argonne National Laboratory), Michael Borland (Argonne National Laboratory), Katherine Harkay (Argonne National Laboratory)
Paper
A Fundamental Study on the Calculation Environment for Radiation Shielding Design of Accelerator Facilities
Nobuo Ikeda (Kyusyu University), Nobuhiro Shigyo (Kyusyu University), Ken-ichi Kimura (Fujita Corporation)
DESIGN AND OPTIMIZATION OF THE SHIELDING OF AN ACCELERATOR DRIVEN THORIUM-FUELED MOLTEN SALT LOOP USING MCNP6
Yassin A. Hassan (Texas A&M University), Rodolfo Vaghetto (Texas A&M University), Se R. Yang (Texas A&M University), Luay Alawneh (Texas A&M University), Eman H. Alsmadi (Texas A&M University)
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