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
February 2026
Nuclear Technology
December 2025
Fusion Science and Technology
November 2025
Latest News
Mark your calendars for the ANS Student Conference
Spring will be here before we know it, and with it will come the 2026 ANS Student Conference, which will take place April 16–18 in College Station, Texas, at Texas A&M University.
Registration for the conference is now open. Click here to learn more.
International Conference on Physics of Reactors 2022 Plenary SPeaker
ORNL
Dr. David Kropaczek of Oak Ridge National Laboratory (ORNL) is the Deputy Technical Director for the Nuclear Energy Advanced Modeling and Simulation (NEAMS) program and former Director for the Consortium for Advanced Simulation of LWRs (CASL). He joined ORNL in 2018 after having served as CASL Chief Scientist and Duke Energy Distinguished Professor of Nuclear Engineering at North Carolina State University. Dr. Kropaczek has over 30 years of experience in the field of nuclear energy with a focus on computational methods development in the areas of nuclear fuel cycle optimization, reactor physics and thermal-hydraulics for both PWRs and BWRs. Previous experience included positions in both R&D and leadership within Westinghouse, General Electric, and most recently, Studsvik Scandpower as CEO.
Last modified February 28, 2022, 10:45am EST