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
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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
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Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
American Nuclear Society presents
October 21, 2015|12:00–1:30PM (1:00–2:30PM EDT)
ANS Members Only
CASL is the first U.S. Energy Innovation Hub connecting fundamental research and technology development through an integrated partnership of government, academia, and industry. CASL.s objective is to provide leading edge modeling and simulation (M&S) capability to improve the performance of currently operating light water reactors and its vision is safer and more productive commercial nuclear power production afforded through comprehensive science-based predictive M&S technology. Towards that end, CASL is developing the Virtual Environment for Reactor Applications (VERA). VERA software simulates nuclear reactor physical phenomena using coupled multi-physics models and includes a range of physical domains, from microscale to engineering scale. VERA's current physics capabilities include neutron transport, thermal-hydraulics, fuel performance, and coolant chemistry.
