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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|Panel|Sponsored by NCSD
Wednesday, June 19, 2024|1:00–2:45PM PDT|Jasmine G
Session Chair:
Kristan M. Wessels
Session Organizer:
Alternate Chair:
Kevin H. Reynolds
Nuclear criticality safety process analysis is required to determine that the entire process will be subcritical under both normal and credible abnormal upsets. The analysis documents generated tend to focus on the operating process and does not always address infrequent activities like preventative and/or corrective maintenance. Panelists will discuss the interface of NCS and maintenance activities at their facility.
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