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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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Oct 2025
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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
Wednesday, May 11, 2022|1:30–3:30PM EDT|Vanda
Session Chair:
Katey E. Lenox (INL)
Session Organizer:
Alternate Chair:
Harold Gerrish (NASA)
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Thermal Shock Testing of Surrogate Fuel Materials for Nuclear Thermal Propulsion
Neal D. Gaffin (Univ. Tennessee, Knoxville), Cean Ang (Univ. Tennessee, Knoxville), Timothy Ironman (Univ. Tennessee, Knoxville), Steven J. Zinkle (Univ. Tennessee, Knoxville)
Paper
Updates on European Americium Uranium Oxide Fuel and Clad Compatibility Tests for European Radioisotope Power Systems
E.J. Watkinson (Univ. Leicester), B. Cremer (European Commission Joint Research Centre Karlsruhe), P. Lajarge (European Commission Joint Research Centre Karlsruhe), S. Gardeur (European Commission Joint Research Centre Karlsruhe), J.-F. Vigier (European Commission Joint Research Centre Karlsruhe), C. Berkmann (European Commission Joint Research Centre Karlsruhe), M. Ernstberger (European Commission Joint Research Centre Karlsruhe), T. Wiss (European Commission Joint Research Centre Karlsruhe), D. Freis (European Commission Joint Research Centre Karlsruhe), T. Crawford (Univ. Leicester), S. Pfirrmann (European Commission Joint Research Centre Karlsruhe), R. Ambrosi (European Commission Joint Research Centre Karlsruhe), R. Konings (European Commission Joint Research Centre Karlsruhe), K. Stephenson (European Space Agency)
In-Pile High-Temperature Testing Vehicle for Nuclear Thermal Rocket Instrumentation, Materials, and Fuel Testing
Brandon Wilson (ORNL), Tyler Steiner (Univ. Tennessee, Knoxville), Emily Hutchins (Univ. Tennessee, Knoxville), Lawrence Heilbronn (Univ. Tennessee, Knoxville), N. Dianne Bull Ezell (ORNL)
Hot Hydrogen Testing of W-Coated UN Kernels for Nuclear Thermal Propulsion
Arne Croell (Univ. Alabama, Huntsville), Jamelle Williams (NASA Marshall Space Flight Center), Martin Volz (NASA Marshall Space Flight Center), Brian Taylor (NASA Marshall Space Flight Center), Jhonathan Rosales (NASA Marshall Space Flight Center)
Design and Construction of a Low-Pressure Wind Tunnel for the Experimental Validation of a Forced-Convection Heat Exchanger for Mars Surface Reactor Waste Heat Rejection
Nathan Colgan (Univ. Wisconsin, Madison), Gregory Nellis (Univ. Wisconsin, Madison), Mark Anderson (Univ. Wisconsin, Madison)
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