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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.
Technical Session|Nuclear Thermal Propulsion
Wednesday, May 8, 2024|10:00–11:40AM MDT|Coronado/DeVargas
Session Chair:
Lindsey Holmes
Alternate Chair:
Session Organizer:
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Initial Verification of ntpThermo against Mixcoatl for Computationally Efficient Multiphysics Analysis of Nuclear Thermal Propulsion Reactors
10:00–10:25AM MDT
Seth Nettersom (BWX Technologies), Drew Bergeon (BWX Technologies), Bryan Zilka (BWX Technologies), Matt Krecicki (BWX Technologies)
Paper
Preliminary Full-Core Analysis of Nuclear Thermal Propulsion Reactors Using Nodal Diffusion Codes
10:25–10:50AM MDT
Jake Smith (Georgia Tech), Dan Kotlyar (Georgia Tech)
Preliminary Sensitivity Studies Using a Newly Developed System Code for NTP Analysis
10:50–11:15AM MDT
R. Myers (Georgia Tech), D. Kotlyar (Georgia Tech)
Coupled Reactor and Engine Nuclear Thermal Propulsion Modeling Methodology
11:15–11:40AM MDT
Jacob Stonehill (Analytical Mechanics Assoc.), Daria Nikitaeva (Analytical Mechanics Assoc.), Corey Smith (Analytical Mechanics Assoc.), Matthew Duchek (Analytical Mechanics Assoc.)
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