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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|Radioisotope Power Systems
Wednesday, May 7, 2025|10:00–11:40AM CDT|Salon EF (Marriott)
Session Chairs:
Chris Whiting (NASA Glenn Research Center)
Emily Hsu (DOE)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Modeling the Performance of a Cascaded Thermionic-Thermoelectric Energy Conversion System for Space Nuclear Power Systems
10:00–10:25AM CDT
Elizabeth D. Juette (Univ. California, Berkeley), Van P. Carey (Univ. California, Berkeley), Jean-Pierre Fleurial (NASA Jet Propulsion Laboratory)
Paper
A Mixed Methods Approach to Modeling Performance Losses In Thermoelectric Generators Due to Material Sublimation
10:25–10:50AM CDT
Carter D. Gassler (Univ. Pittsburgh), Michael J. Durka (Univ. Pittsburgh), Matthew M. Barry (Univ. Pittsburgh)
Qualification Testing of the ESA Radioisotope Thermoelectric Generator
10:50–11:15AM CDT
Ramy Mesalam (Univ. Leicester), Alessandra Barco (Univ. Leicester), Rob Tute (Univ. Leicester), Kris Bell (Univ. Leicester), Hannah Sargeant (Univ. Leicester), Emily Jane Watkinson (Univ. Leicester), Tony Crawford (Univ. Leicester), Christopher Bicknell (Univ. Leicester), Richard Ambrosi (Univ. Leicester), Christophe Fongarland (ESA)
Testing and Characterization of Industrial Thermoelectric Modules for Space Applications
11:15–11:40AM CDT
Kenton Sherick (Univ. Dayton Research Institute), Boyd Allen Tolson (Univ. Dayton Research Institute), Matthew Johnson (Univ. Dayton Research Institute), Asa Palmer (Univ. Dayton Research Institute), Christopher Venturella (Univ. Dayton Research Institute), Rebecca Hoffman (Univ. Dayton Research Institute), Chadwick Barklay (Univ. Dayton Research Institute)
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