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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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Nuclear Science and Engineering
May 2025
Nuclear Technology
Fusion Science and Technology
Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Technical Session|Panel|Sponsored by NISD
Tuesday, November 14, 2023|3:15–5:00PM EST|Columbia 10
Session Chair:
Kevin R. O'Kula
Session Organizer:
Mihai A. Diaconeasa
In 2018 and 2021, fuel failure events occurred in research reactors at Oak Ridge National Laboratory (ORNL) and the National Institute of Standards and Technology (NIST) in the ORNL High Flux Isotope Reactor (HFIR) and NIST Center for Neutron Research (NCNR) Reactor, respectively. While neither event resulted in significant radiological exposure, each of the affected reactor facilities paused operations to review fuel fabrication, training, operations, quality assurance, conduct causal analyses and other activities before returning to normal operations. An earlier panel session at the 2021 ANS Winter Meeting provided an update on where the two reactor facilities stood in their recovery efforts. This session will be a panel with key representatives from ORNL, NIST, and NRC staff that will discuss the events, the associated causal analyses, corrective actions, and lessons learned since the two events before recovery of full operations in both HFIR and NCNR.
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