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
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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!
Latest Magazine Issues
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
High-temperature plumbing and advanced reactors
The use of nuclear fission power and its role in impacting climate change is hotly debated. Fission advocates argue that short-term solutions would involve the rapid deployment of Gen III+ nuclear reactors, like Vogtle-3 and -4, while long-term climate change impact would rely on the creation and implementation of Gen IV reactors, “inherently safe” reactors that use passive laws of physics and chemistry rather than active controls such as valves and pumps to operate safely. While Gen IV reactors vary in many ways, one thing unites nearly all of them: the use of exotic, high-temperature coolants. These fluids, like molten salts and liquid metals, can enable reactor engineers to design much safer nuclear reactors—ultimately because the boiling point of each fluid is extremely high. Fluids that remain liquid over large temperature ranges can provide good heat transfer through many demanding conditions, all with minimal pressurization. Although the most apparent use for these fluids is advanced fission power, they have the potential to be applied to other power generation sources such as fusion, thermal storage, solar, or high-temperature process heat.1–3
June 14–16, 2021
ANS President 2020-2021Mary Lou Dunzik-Gougar, PhD
General ChairDr. Thomas ZachariaOak Ridge National Laboratory
ANS Executive Director/CEOCraig H. Piercy
Monday, June 14, 2021 | 10:00AM
Opening Remarks from
Secretary of the U.S. Department of Energy
Monday, June 14, 2021 | 10:00AM–12:30PM EDT
Tuesday, June 15, 2021 | 10:00–11:30AM EDT
Wednesday, June 16, 2021 | 10:00–11:30AM EDT
New this year, Executive Panels have been added to provide busy nuclear professionals a broader look at developments in nuclear science and technology and their impact on policy and markets. The Executive Panels will focus on crisis communications, diversity and inclusion, lessons learned from new construction projects, and the 2021 Polar Vortex energy blackouts as well as advances in space technology, non-power technologies and nuclear capabilities, and action on nuclear waste.
Be a part of one of the largest gatherings of nuclear professionals in the country where the brightest minds engage – and inspire – leaders from across the nuclear science and technology landscape.
View our Supporting Partner/Exhibitor Prospectus
