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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
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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
Monday, May 9, 2022|4:00–6:00PM EDT|Vanda
Session Chair:
Todd Tofil (NASA)
Session Organizer:
Alternate Chair:
Sebastian Corbisiero (INL)
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The Hypatia Experiment Thermal Simulation
Mikaela Blood (LANL), Holly Tellue (LANL), Theresa Cutler (LANL)
Paper
Neutronics and Heat-Transfer Analysis of a Compact kW-Class Moderated Spectrum Reactor
Vedant K. Mehta (LANL), Aditya P. Shivprasad (LANL), Dasari V. Rao (LANL)
The Transition of KRUSTY to a 50-kWe Kilopower System
David Poston (Space Nuclear Power Corp.), Marc Gibson (Space Nuclear Power Corp.), Patrick McClure (Space Nuclear Power Corp.)
Hydrogen Loss from Clad Metal Hydride Moderators
A.P. Shivprasad (LANL), Erik Luther (LANL), D. V. Rao (LANL)
Space Nuclear Power Technologies for Robotic and Human Missions
Anthony Calomino (NASA Space Technology Mission Directorate), Lindsey Holmes (Analytical Mechanics Assoc.), Samantha Austin (Analytical Mechanics Assoc.)
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