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
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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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Apr 2025
Jan 2025
Latest Journal Issues
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|Sponsored by RPD
Tuesday, November 15, 2022|3:15–5:00PM MST|Sonoran 7
Session Chair:
Massimiliano Fratoni
Session Organizer:
Alternate Chair:
Pavel V. Tsvetkov
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High-Fidelity Multiphysics Modeling of Load Following for 3-D Gas-Cooled Microreactor Assembly Using NEAMS Codes
3:15–3:35PM MST
Ahmed Abdelhameed (ANL), Yan Cao (ANL), Daniel Nunez (ANL), Yinbin Miao (ANL), Kun Mo (ANL), Changho Lee (ANL), Emily Shemon (ANL), Nicolas E. Stauff (ANL)
Paper
Applications of NEAMS Codes for Multiphysics Modeling of Several Microreactors Problems
3:35–3:55PM MST
Nicolas E. Stauff (ANL), Ahmed Abdelhameed (ANL), Yan Cao (ANL), Daniel Nunez (ANL), Yinbin Miao (ANL), Kun Mo (ANL), Changho Lee (ANL), Christopher Matthews (LANL), Emily Shemon (ANL), Justin Thomas (ANL)
Design Optimization of the Holos-Mono Microreactor Concept
3:55–4:15PM MST
Alisha Kasam-Griffith (ANL), Nicolas Stauff (ANL), Yinbin Miao (ANL), Sumit Bhattacharya (ANL), Claudio Filippone (HolosGen)
High Fidelity Multiphysics Simulation of Holos Quad Micro Reactor Design
4:15–4:35PM MST
Changho Lee (ANL), Brent P. Hollrah (ANL), Kristina (ANL), Nicolas E. Stauff (ANL), Ling Zou (ANL), Claudio Filippone (HolosGen)
Application of the Coolant Sleeve Technology to Holos Gas Cooled Microreactors
4:35–4:55PM MST
Nicolas E. Stauff (ANL), Y. Miao (ANL), S. Bhattacharya (ANL), L. Zou (ANL), A. Kasam-Griffith (ANL), C. Filippone (HolosGen)
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