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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
Wednesday, November 20, 2024|8:00–9:45AM EST|Canaveral 2
Session Chair:
Angela Chambers
Session Organizer:
Alternate Chair:
Douglas G. Bowen
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Design Evolution of a UO2-BeO Critical Experiment
8:00–8:20AM EST
William M. Cook (Sandia), Elijah Lutz (Sandia), David Ames (Sandia)
Paper
Presentation Slides (Visible to Attendees) — Presentation Slides
Sum-of-Fractions Method
8:20–8:40AM EST
Travis J. Zipperer (PNNL), Andrew W. Prichard (PNNL, Retired), Travis M. Greene (ORNL), William J. Marshall (ORNL), Alex Lang (ORNL)
The Completion of Surrogate Testing for Low-Temperature TEX and a Look Towards the Future
8:40–9:00AM EST
Eric Aboud (LLNL), Jacob Glesmann (LLNL), Jesse Norris (LLNL), Catherine Percher (LLNL), Nick Killingsworth (LLNL), Paul Yap-Chiongco (LLNL), Venkata Ravindra (National Nuclear Laboratory), Alfie O'Neill (National Nuclear Laboratory), Deborah Hill (National Nuclear Laboratory), Steve Graham (National Nuclear Laboratory)
SCALE Developments for the U.S. Nuclear Criticality Safety Program: Recent Achievements and Outlook
9:00–9:20AM EST
K.B. Bekar (ORNL), J. Brown (ORNL), C. Celik (ORNL), T. Greene (ORNL), S.W.D. Hart (ORNL), W.J. Marshall (ORNL), J.D. McDonnell (ORNL), U. Mertyurek (ORNL), S.E. Skutnik (ORNL), W.A. Wieselquist (ORNL)
IER 555: Status of Godiva-IV Benchmark (HEU-MET-FAST-086) Revision
9:20–9:40AM EST
Jeffrey A. Favorite (LANL), Joetta Goda (LANL)
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