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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
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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 MCD
Wednesday, June 15, 2022|10:15AM–12:00PM PDT|Avila B
Session Chair:
Aaron Olson (Sandia)
Alternate Chair:
Stefano Terlizzi (INL)
Session Organizer:
Brian C. Kiedrowski (Univ. Michigan)
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Neutron Count Number Probability Distribution Approximations Using Two-Forked and Higher Correlations
Philippe P. Humbert (CEA)
Paper
A Continuous-Temperature Thermal Scattering Treatment Using Proper Orthogonal Decomposition
Aaron G. Tumulak (Univ. Michigan), Brian C. Kiedrowski (Univ. Michigan)
Inter-Code Comparison of Time Independent Pulsed Sphere Benchmark Results
Jordan Northrop (Oregon State ), Camille Palmer (Oregon State ), Aaron Reynolds (Oregon State)
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