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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Nuclear Science and Engineering
June 2025
Nuclear Technology
May 2025
Fusion Science and Technology
Latest News
Sam Altman steps down as Oklo board chair
Advanced nuclear company Oklo Inc. has new leadership for its board of directors as billionaire Sam Altman is stepping down from the position he has held since 2015. The move is meant to open new partnership opportunities with OpenAI, where Altman is CEO, and other artificial intelligence companies.
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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