ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
May 2025
Nuclear Technology
Fusion Science and Technology
Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Technical Session|Radioisotope Power Systems
Wednesday, May 7, 2025|10:00–11:40AM CDT|Salon EF (Marriott)
Session Chair:
Chris Whiting (NASA Glenn Research Center)
Alternate Chair:
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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