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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Mar 2025
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Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
El Salvador: Looking to nuclear
In 2022, El Salvador’s leadership decided to expand its modest, mostly hydro- and geothermal-based electricity system, which is supported by expensive imported natural gas and diesel generation. They chose to use advanced nuclear reactors, preferably fueled by thorium-based fuels, to power their civilian efforts. The choice of thorium was made to inform the world that the reactor program was for civilian purposes only, and so they chose a fuel that was plentiful, easy to source and work with, and not a proliferation risk.
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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