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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
Fusion Science and Technology
Latest News
Surplus plutonium for power reactor fuel: What’s on offer
The Department of Energy has a plan for private companies to “dispose of surplus plutonium”—about 19.7 metric tons in both oxide and metal forms—by “making the materials available for advanced nuclear technologies.” A Surplus Plutonium Utilization Program request for applications (RFA) issued October 21 describes the plutonium on offer, and the “thresholds” prospective applicants must meet.
Technical Session|Space Nuclear Propulsion
Wednesday, May 7, 2025|3:15–4:55PM CDT|Salon EF (Marriott)
Session Chair:
Elora Kurz (NASA Langley Research Center)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Assessment of Reduced Order Thermal Modeling Assumptions for Nuclear Thermal Propulsion
3:15–3:40PM CDT
Corey Smith (AMA), Jacob Stonehill (AMA), Daria Nikitaeva (AMA), Matthew Duchek (AMA)
Paper
A Preliminary Computational Thermal Model of the Centrifugal Nuclear Thermal Rocket
3:40–4:05PM CDT
Nicholas DeFranzo (Univ. Rhode Island), Bahram Nassersharif (Univ. Rhode Island)
Verification of a Reduced-Order, Thermal-Hydraulic Code Using Higher-Order Analysis Tools
4:05–4:30PM CDT
Jonathon Thomsen (Georgia Tech), Camden Eck (Georgia Tech), Dan Kotlyar (Georgia Tech)
Ensemble Kalman Smoothing for Estimating Unknown Heat Source in a Transient Thermal System
4:30–4:55PM CDT
Haeseong Kim (MIT), Sacit M. Cetiner (INL), Arunkumar Seshadri (MIT), Matteo Bucci (MIT)
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