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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Jan 2026
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
January 2026
Nuclear Technology
December 2025
Fusion Science and Technology
November 2025
Latest News
The Meta-Vistra deal: A closer look
With last Friday's announcement regarding its vision for nuclear energy, Meta has entered into 20-year power purchase agreements (PPAs) for more than 2,600 MW of electricity from a combination of three Vistra-owned nuclear plants to support the tech behemoth's planned operations in the PJM region.
2024 International Congress on Advances in Nuclear Power Plants (ICAPP) SPeaker
Chemist/Engineer
Nuclear Energy Agency
Steering Committee Bureau
Policy Director
Generation IV International Forum
Fiona Rayment enjoys a plural career covering nuclear advisory and non executive director roles and has dedicated decades to the nuclear sector with extensive strategic and operational experience. She is a chartered chemist and engineer with a PhD in chemistry from University of Strathclyde, Glasgow and a fellow of the Royal Academy of Engineering, the Royal Society of Chemistry and of the UK Nuclear Institute. She has an MBA from Manchester Business School.
Fiona has recently served as a member of Euratom’s Science and Technology Committee, the Idaho National Laboratory's Nuclear Science and Technology Advisory Committee, the American Nuclear Society Board and was the first chair of the UK’s Nuclear Skills Strategy Group. Her current roles across the sector include being an advisor to the CEO of the National Nuclear Laboratory and the Office of Nuclear Regulation Chief Nuclear Inspector’s Independent Advisory Panel. Fiona is chair of the Scientific Advisory Committee of the Energy Division at CEA - the French Alternative Energies and Atomic Energy Commission, a Non-Executive Member of the UK Space Agency Steering Board, Patron of Women in Nuclear UK and President Elect of the UK Nuclear Institute.
In addition Fiona is a vice chair of the Nuclear Energy Agency’s Steering Committee Bureau and Policy Director of the Generation IV International Forum.
Fiona has long advocated widening participation in science and engineering and champions our sector- leading approach to diversity and inclusion.
She was awarded an OBE in 2017 and the French Légion d’Honneur in 2020.
Last modified March 5, 2024, 10:36am PST