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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
Senate EPW Committee to hold Nieh nomination hearing
Nieh
The Senate Environment and Public Works Committee will hold a nomination hearing Wednesday for Ho Nieh, President Donald Trump’s nominee to serve as commission at the Nuclear Regulatory Commission.
Trump nominated Nieh on July 30 to serve as NRC commissioner the remainder of a term that will expire June 30, 2029, as Nuclear NewsWire previously reported.
Nieh has been vice president of regulatory affairs at Southern Nuclear since 2021, though since June 2024 he has been at the Institute of Nuclear Power Operations as a loaned executive.
A return to the NRC: If confirmed by the Senate, Nieh would be returning to the NRC after three previous stints totaling nearly 20 years.
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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