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
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!
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May 2025
Jan 2025
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Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Webinar: MC&A and safety in advanced reactors in focus
Towell
Russell
Prasad
The American Nuclear Society’s Nuclear Nonproliferation Policy Division recently hosted a webinar on updating material control and accounting (MC&A) and security regulations for the evolving field of advanced reactors.
Moderator Shikha Prasad (CEO, Srijan LLC) was joined by two presenters, John Russell and Lester Towell, who looked at how regulations that were historically developed for traditional light water reactors will apply to the next generation of nuclear technology and what changes need to be made.
Decommissioning Environmental Science and Remote Technology 2021 Speaker
Ms Tadesse joined the NEA in January 2019 and is responsible for advancing information exchange and studies in the fields of radioactive waste management, nuclear facility decommissioning, and legacy management.
Prior to joining NEA, Ms Rebecca Tadesse served as the Chief of the Radiation Protection Branch in the Office of Nuclear Regulatory Research at the United States Nuclear Regulatory Commission. Ms Tadesse has over 27 years of domestic and international experience in the operation and radiation safety of research reactors, fuel fabrication facilities, nuclear power plants and biomedical research facilities. Ms Tadesse also served as Senior Policy Advisor for Commissioners and Senior Operational Assistant in the Executive Directors Office. In addition, Ms Tadesse was the Chief of the Material Decommissioning Branch, where she was responsible for managing the licensing and the oversight of complex decommissioning nuclear facilities. She also held numerous positions in the Reactor, Material and Fuels area at the NRC as Health Physicist, Project Manager, and Technical Assistant to the Director. Prior to her appointment with NRC, she worked for private industry and Federal Government as a Radiation Physicist at Common Wealth Edison Nuclear Corporation, General Atomics defense Contractor Company, and the U.S. Food and Drug Administration.
Ms Tadesse is a US national and holds a B.S. degree in Radiation Physics from Purdue University and an M.S. degree in Environmental Science/Policy from Johns Hopkins University
Last modified November 15, 2021, 1:23pm EST