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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
NEA report calls for more accurate data on SNF heat decay
The OECD Nuclear Energy Agency has issued a report calling for more-detailed information on tracking the decay heat of spent nuclear fuel from light water reactors. According to the NEA, the report highlights the increasing importance of accurate decay heat estimations due to evolving fuel characteristics, including higher initial fuel enrichment, increased burn-up rates, and extended reactor cycle lengths.
The report, Summary of the NEA Assessment on Spent Nuclear Fuel Decay Heat for Light Water Reactors, summarizes the findings of a subgroup of the NEA’s Working Party on Nuclear Criticality Safety (WPNCS), which ran from January 2022 to January 2024.
Technical Session|Sponsored by NCSD
Monday, June 17, 2024|3:15–5:00PM PDT|Jasmine G
Session Chair:
Ben Martin
Alternate Chair:
James I. Cole
Session Organizer:
Deborah A. Hill
Whilst the word “innovation” is often synonymous with research & technological advances in the nuclear industry, the importance of innovation in the nuclear criticality safety discipline should not be underestimated. Submissions are welcomed on areas where novel products, processes or approaches have the potential to be a real game changer in viably addressing current or future challenges with nuclear criticality safety implications.
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The PARADIGM Project: An Integral Experiment Optimized to Reduce Plutonium Intermediate Energy Nuclear Data Uncertainties
3:15–3:35PM PDT
T. Cutler (LANL), K. Amundson (LANL), P. Brain (LANL), M. Devlin (LANL), N. Gibson (LANL), J. Hutchinson (LANL), N. Kleedtke (LANL), R. Little (LANL), D. Neudecker (LANL), E. Williamson (LANL)
Paper
Criticality Safety Support for Deactivated Facilitates at Savannah River Site
3:35–3:55PM PDT
Tracy E. Stover (Savannah River Nuclear Solutions), David Lehner (Savannah River Nuclear Solutions)
Nuclear Criticality Safety Considerations for Hydraulic Elevator Systems
3:55–4:15PM PDT
Adam Walker (Y-12 Nat'l Security Complex), Joshua Schwartz (Y-12 Nat'l Security Complex)
Equivalency Factors and Mixed Isotope Subcritical Limits in H-Canyon
4:15–4:35PM PDT
R.M. Rice (Savannah River Nuclear Solutions), T.E. Stover (Savannah River Nuclear Solutions), N.P. Devine (Savannah River Nuclear Solutions), D. Randle (Savannah River Nuclear Solutions)
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