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
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Two updated standards on criticality safety published
The American National Standards Institute (ANSI) recently approved two new American Nuclear Society standards covering different aspects of nuclear criticality safety (NCS).
2023 ANS Annual Meeting Speaker
The Honorable Jeffrey S. Merrifield, the leader of Pillsbury Winthrop Shaw Pittman LLP’s Energy practice group and a former presidential appointee to the Nuclear Regulatory Commission, is widely recognized as an international thought leader on nuclear power and the deployment of complex energy systems for the avoidance of carbon generation.
During his three decades of involvement in the energy industry, Jeff has developed wide-ranging relationships throughout the international nuclear community that allow him to identify strategic and legal solutions for major energy and environmental matters. He is recognized as a leader in advanced nuclear deployment and has assisted large and developing nuclear utilities, suppliers and governments in effectively meeting their regulatory requirements and strategic objectives regarding the deployment of complex energy systems. Jeff's well-received corporate executive experience as well as media and public speaking capabilities also provide a significant resource for the advocacy of common-sense and cost-effective solutions.
Last modified April 18, 2023, 10:50am EDT
