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
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|Panel|Sponsored by FCWMD
Tuesday, November 14, 2023|1:00–2:45PM EST|Fairchild East/West
Session Chairs:
Nathan Ryan (Univ. Illinois)
Hannah Patenaude (Univ. Nevada Las Vegas)
Alternate Chair:
Sven O. Bader (Orano Federal Services)
Session Organizer:
This panel will provide the current status of, and advancements occurring in, international repository programs and provide an update on the status of the Consent-Based Siting (CBS) process pursued domestically. The focus of this panel will be on providing an update on the tangible progress made on the repository programs in Canada, Finland, France, Sweden, and Switzerland, as well as discussing the lessons learned from these programs that may be of benefit to the U.S. CBS process. In addition to the repositories, this panel will identify progress made on support facilities integral to the use of the repositories (e.g., repackaging).
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