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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|1:00–2:40PM CDT|SPOC B (Space & Rocket Center)
Session Chair:
Jason Cassibry (Univ. Alabama, Huntsville)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Preliminary Study of Fission Product Entrainment Impact on a Centrifugal Nuclear Thermal Rocket
1:00–1:25PM CDT
Mitchell Schroll (Univ. Alabama, Hunstville), Robert Frederick Jr. (Univ. Alabama, Hunstville), L. Dale Thomas (Univ. Alabama, Hunstville)
Paper
Hydrogen Flow and Heat Transfer Enhancements for the Centrifugal Nuclear Thermal Rocket
1:25–1:50PM CDT
Bahram Nassersharif (Univ. Rhode Island), Joel Aubin (Univ. Rhode Island), Nicholas Caito (Univ. Rhode Island), Nicholas Colavecchio (Univ. Rhode Island), Nicholas DeFranzo (Univ. Rhode Island)
Design and Analysis of an Internal Gas Turbine for the Centrifugal Nuclear Thermal Rocket (CNTR)
1:50–2:15PM CDT
Bahram Nassersharif (Univ. Rhode Island), Andrik Puentes (Univ. Rhode Island), Lucas Murphy (Univ. Rhode Island), Mycarthy Newton (Univ. Rhode Island), Michael Kenney (Univ. Rhode Island), Shamar Morgan (Univ. Rhode Island)
Simulating Flow and Heat Transfer Properties of Centrifugal Nuclear Thermal Propulsion Reactor
2:15–2:40PM CDT
Joshua Naudet (Ohio State), Spencer Christian (Ohio State), Calvin Chandler (Ohio State)
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