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
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!
Latest Magazine Issues
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
Latest News
NRC v. Texas: Supreme Court weighs challenge to NRC authority in spent fuel storage case
The State of Texas has not one but two ongoing federal court challenges to the Nuclear Regulatory Commission that could, if successful, turn decades of NRC regulations, precedent, and case law on its head.
ANS has a number of policy task forces and submits annual appropriations recommendations to House and Senate committees, along with producing related reports to support its public policy efforts.
Special Committee on Generic Standards for Disposal of High-Level Radioactive Waste
The ANS Special Committee on Generic Standards released this report in August 2023 to recommend updates to the U.S. geologic repository standards under regulation 40 CFR Part 191.
The U.S. Nuclear R&D Imperative
Released February of 2021, this study examines the investments needed to field a new generation of nuclear energy technologies in 2030 and beyond.
ANS Special Committee on Advanced Reactor Policy
This report from November 2019 includes recommendations for accelerating the deployment of advanced reactors in the U.S. and abroad that best represent the consensus position of the U.S. nuclear community.
ANS Nuclear Waste Policy Task Force
Formed in 2019, this task force interacts with policymakers, government representatives, and the public on spent fuel and high-level radioactive waste management issues.
ANS Collaborative-Based Siting Consortium
Supported by an award from the DOE, the ANS-led Consortium partners with four universities to develop a scalable, community-driven model for collaborative siting of interim storage facilities for used nuclear fuel through respectful, inclusive engagement across the country.
Testimony for the Record for FY 2025 Nuclear Energy Programs to Energy and Water Appropriators
Each year ANS submits appropriations recommendations on DOE programs to the House and Senate for the upcoming fiscal year.
Risk-Informed and Performance-Based Decision Making
ANS supports regulatory reform that uses risk-informed, performance-based principles. Get the background information and simplified definitions on these principles.
Beneficial Uses of Radioisotopes
Radioisotopes go unnoticed for their everyday applications, from life-saving cancer treatments and oil/gas well-logging to extending produce shelf life and sterilizing medical devices, implants and supplies.
The Nexus Between Safety and Operational Performance
Over the past 20 years, the nuclear industry’s efforts to improve plant performance have taken a risk-informed approach that focuses resources on the most safety-significant issues.
Risk-informed, Performance-based Safety: Past, Present, and Future
Risk-informed and performance-based approaches to nuclear safety have saved money and improved safety for current reactors and have the potential to offer even greater benefits for advanced reactors.
