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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|Space Nuclear Propulsion
Monday, May 5, 2025|10:00–11:40AM CDT|SPOC B (Space & Rocket Center)
Session Chair:
Mitchell Rodriguez (NASA Marshall Space Flight Center)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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The Case for Architecting Space Nuclear Propulsion Missions and Vehicles That Incorporate In-Space Servicing, Assembly and Manufacturing Principles
10:00–10:25AM CDT
Julia Cline (NASA Langley Research Center), John Dorsey (NASA Langley Research Center)
Paper
Alumni Project: Ntp Engine Design Options and Performance Assessment Against Mars Mission Use Cases
10:25–10:50AM CDT
Frederic Bertrand (CEA), Pierre Sciora (CEA), Valérie Brun-Magaud (CEA), Eric Proust (CEA), Gedeon Mauger (CEA), Thibault Moulignier (CEA), Michel L. Schlegel (CEA), Fabrice Jacquet (Ariane Group), Jean-Luc Dumont (Ariane Group), Lea Wullschleger (Ariane Group), Nicolas Guezennec (Ariane Group), Aranud Ruiz (Ariane Group), Nicolas Corlay (Ariane Group), Valere Girardin (ESA)
Mission Formulation Using Digital Engineering for Nuclear Thermal Propulsion System
10:50–11:15AM CDT
Saroj Kumar (Univ. Alabama, Huntsville), L. Dale Thomas (Univ. Alabama, Huntsville)
Safety Engineering Framework for Space Nuclear Reactor Control Mechanisms
11:15–11:40AM CDT
Matthew Granger (Lockheed Martin Space), Alexander Herbert (Lockheed Martin Space)
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