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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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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|Methods
Wednesday, April 24, 2024|3:30–5:15PM PDT|Franciscan D
Session Chair:
Eugene Shwageraus
Session Organizer:
Alternate Chair:
Valeria Raffuzzi
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Particle Tracking in Involute-Based Reactor Geometries in SCONE Monte Carlo Code
3:30–3:50PM PDT
Mikolaj Adam Kowalski (Univ. Cambridge), Congjin Ding (Univ. Cambridge), Eugene Shwageraus (Univ. Cambridge)
Paper
Calculating the Change in Power Shape due to Localised Perturbations to Nuclear Data Using a Generalised Sensitivities Method in MONK
3:50–4:10PM PDT
Andrew J. Cox (ANSWERS Software Service), Richard P. Hiles (ANSWERS Software Service), Simon D. Richards (ANSWERS Software Service), Paul N. Smith (ANSWERS Software Service)
Seismic Deformation of Spacer Grids -- Extension of ARCADIA and Validation of Proposed Neutronic Model
4:10–4:30PM PDT
J. Marten (Framatome), M. Schneider (Framatome), G. Sieber (Framatome), H. Keßler (Framatome)
UO2-Mo Composite Fuel Model Development and Simulation Using the ENIGMA Code
4:30–4:50PM PDT
Aiden Peakman (Univ. Manchester), Glyn Rossiter (National Nuclear Laboratory)
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