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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.
International High-Level Radioactive Waste Management Conference
Technical Session
Monday, November 14, 2022|1:00–2:45PM MST|Lantana
Session Chair:
Seth King (Sandia)
Alternate Chair:
Chris Camphouse (Sandia)
Session Organizer:
Emily R. Stein
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Advances in Sensitivity Analysis for Repository Performance Assessment: Examples from the International JOSA Exercise
1:00–1:20PM MST
Dirk-Alexander Becker (GRS), Sabine M. Spiessl (GRS)
Paper
A Comparison of Uncertainty Quantification Methods for Modelling Radionuclide Transport in Nuclear Waste Disposal Systems
1:20–1:40PM MST
Merle Bjorge (Bundesgesellschaft für Endlagerung), Aqeel Afzal Chaudhry (Technische Universität Bergakademie Freiberg), Wolfram Rühaak (Bundesgesellschaft für Endlagerung), Thomas Nagel (Technische Universität Bergakademie Freiberg)
Multimodel Methods for Uncertainty Quantification of Repository Systems
1:40–2:00PM MST
Teresa Portone (Sandia), Michael Eldred (Sandia), Gianluca Geraci (Sandia), Laura Swiler (Sandia)
Beyond Kd: Next Generation Performance Assessment Framework Through Machine Learning
2:00–2:20PM MST
Haruko Wainwright (MIT), Elliot Chang (LLNL), Dinara Ermakova (Univ. California, Berkeley), Hannah Lu (Stanford Univ.), Linda Beverly (California State Univ., East Bay), Michael Nole (Sandia), Mavrik Zavarin (LLNL), Omotayo Omosebi (LBNL), Liange Zheng (LBNL)
Natural Analogue Studies in Support of Post-Closure Safety Assessment of Deep Geological Disposal
2:20–2:40PM MST
Zhenze Li (CNSC), Thanh Son Nguyen (CNSC), Matthew Herod (CNSC), Julie Brown (CNSC), Hamed Mozafarishamsi (Univ. Ottawa), Ian Clark (Univ. Ottawa)
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