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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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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|Fantail
Session Chair:
Amy E. van der Vyver
Alternate Chair:
Benjamin Martin
Session Organizer:
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Safety Cases: Assumptions Versus Reality
8:00–8:20AM EST
James Rendell (National Nuclear Laboratory)
Paper
Functional Classification of Criticality Safety Controls at the Savannah River Plutonium Processing Facility
8:20–8:40AM EST
Brittany M. Williamson (Spectra Tech)
Investigating Hydrogen Thermal Scattering Law Data with Critical Benchmarks
8:40–9:00AM EST
T.M. Greene (ORNL), W.J. Marshall (ORNL), C.W. Chapman (ORNL)
Evaluation of Thermal Neutron Scattering Cross Section of α-U3O8 with Ab Initio Lattice Dynamics
9:00–9:20AM EST
Junhyoung Gil (NCSU), Ayman I. Hawari (NCSU)
An Approach to Obtaining the Best-Estimate keff for Uncertainty in ZPPR Plates
9:20–9:40AM EST
Veronica Karriem (ORNL), Douglas G. Bowen (ORNL)
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