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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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Latest News
2025 annual assessments out for U.S. reactors
The Nuclear Regulatory Commission has released its 2025 annual performance assessments of the country’s 95 operating commercial nuclear reactors. And of the 95 reactors, all but five earned the highest marks.
Nuclear power plant assessments can fall under one of five categories: Licensee Response, Regulatory Response, Degraded Cornerstone, Degraded Performance, and Unacceptable Performance. Ninety reactors fell under Licensee Response, the highest performance category in safety and security. Plants that achieve this level of performance are subject to a Reactor Oversight Process (ROP) baseline inspection.
Technical Session
Wednesday, July 24, 2024|10:15AM–12:05PM CDT|Madison Ballroom
Session Chair:
Kate Borowiec (ORNL)
Alternate Chair:
Ethan Peterson (Massachussets Institute of Technology)
Session Organizer:
Paul P. Wilson
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Scheme for Calculating the Complete Stochastic Uncertainty in Nuclear Analysis Based on 2 Monte Carlo Code Systems
10:15–10:40AM CDT
J. Alguacil (Univ. Nacional de Educacion a Distancia), I. Lopez (Univ. Nacional de Educacion a Distancia), J.P. Catalan (Univ. Nacional de Educacion a Distancia), P. Sauvan (Univ. Nacional de Educacion a Distancia), J. Sanz (Univ. Nacional de Educacion a Distancia)
Paper
Local Uncertainty and Unstructured Mesh Element Volume in MCNP
10:40–11:05AM CDT
John Tortorello (Commonwealth Fusion Systems), Andrea A. Saltos (Commonwealth Fusion Systems), Ryanne Kennedy (Commonwealth Fusion Systems)
Uncertainty Analysis of OpenMC Shutdown Dose Rates Calculation
11:05–11:25AM CDT
Bamidele Ebiwonjumi (MIT), Ethan Peterson (MIT)
Presentation Slides (Visible to Attendees)
Optimization of SPARC Vacuum Spectroscopy Shielding Design Using Cottonwood Adjoints
11:25–11:45AM CDT
Ian R. Miner (Commonwealth Fusion Systems), Inwoo Song (Commonwealth Fusion Systems), Andrea Saltos (Commonwealth Fusion Systems), Ryanne Kennedy (Commonwealth Fusion Systems)
Machine Learning Uncertainty Quantification for Fusion Plasma Controllers
11:45AM–12:05PM CDT
Cyd Cowley (digiLab Solutions), Andy Corbett (digiLab Solutions), Mikkel Lykkegaard (digiLab Solutions), Adam Parrott (Culham Centre for Fusion Energy)
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