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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 RPD
Monday, November 14, 2022|3:15–5:00PM MST|Sonoran 7
Session Chair:
Jason Hou (NCSU)
Alternate Chair:
Massimiliano Fratoni (UC Berkeley)
Session Organizer:
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Open-Source Computational Model of a Molten Chloride Fast Reactor
3:15–3:35PM MST
Harrison Reisinger (Univ. Tennessee, Knoxville), C. Erika Moss (Univ. Tennessee, Knoxville), Nathaniel Howard (Univ. Tennessee, Knoxville), Maxwell Wagner (Univ. Tennessee, Knoxville), Peyton Mann (Univ. Tennessee, Knoxville), Ondrej Chvala (Univ. Tennessee, Knoxville)
Paper
Molten Salt Reactor Modeling in SCALE: Effects of Multigroup Libraries on Depletion Analysis
3:35–3:55PM MST
Christopher E. Bayne (Georgia Tech), Bojan Petrovic (Georgia Tech)
MSR Reactivity, Power, and Inventory Simulations with SCALE
3:55–4:15PM MST
Friederike Bostelmann (ORNL), Austin Lo (ORNL), Benjamin R. Betzler (ORNL), Donny Hartanto (ORNL), William A. Wieselquist (ORNL)
Parametric Study of the Thorium-Based Molten Salt Reactor Core
4:15–4:35PM MST
Seda Yilmaz Kaygisiz (Purdue), Shripad Revankar (Purdue)
MSRE Transient Benchmark Development and Evaluation: NEUP Project Updates
4:35–4:55PM MST
Zeyun Wu (Virginia Commonwealth Univ.), Mohamed Elhareef (Virginia Commonwealth Univ.), Massimiliano Fratoni (Univ. California, Berkeley), Benjamin Betzler (ORNL), Tingzhou Fei (ANL), Kurt Harris (Flibe Energy)
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