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
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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
International High-Level Radioactive Waste Management 2022 Speaker
Dr. Regalbuto is a leader in the development of nuclear fuel cycle technologies, combining her knowledge in separations, computer simulations, and proliferation risk reduction. She has over 30 years of experience in radio-isotope processing, recovery and immobilization for environmental remediation, resource conservation and medical applications. She currently leads the integrated fuel cycle strategic initiative at the Idaho National Laboratory. Dr. Regalbuto serves today as a member of (1) the Nuclear and Radiation Studies Board at the National Academy of Sciences (NAS) and (2) the Standing Advisory Group on Nuclear Energy (SAGNE) at the IAEA which advises the Director General. Dr. Regalbuto has served in multiple national leadership roles. In 2015, she was appointed by President Obama and confirmed by the Senate as Assistant Secretary for the Office of Environmental Management for the U.S. Department of Energy (DOE). In this capacity, she was responsible for managing the environmental cleanup resulting from weapons production as well as special nuclear materials. As the Deputy Assistant Secretary for Fuel Cycle Technologies with DOE’s Office of Nuclear Energy, Dr. Regalbuto managed the nation’s research and development fuel cycle portfolio. At Argonne National Laboratory, Dr. Regalbuto served as the head of the Process Chemistry and Engineering Department in the Chemical Sciences and Engineering Division. She is an INL and American Nuclear Society fellow and has authored multiple journal articles, reports, and presentations and holds six patents.
Last modified September 12, 2022, 8:03am MST
