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
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
June 11–14, 2023
Failure is not an option.
Indianapolis, IN|Marriott Indianapolis Downtown
Thank you for participating in the 2023 ANS Annual Meeting!
The Annual Meeting TRANSACTIONS are now available to all who registered for the conference. Access to the TRANSACTIONS is linked to the account you used to register for the meeting.
You can also access the TRANSACTIONS by logging in to the ANS website.
Movie Screening
Monday, June 12 | 8:00PM | Marriott Ballroom 5/6
In this documentary Oliver Stone “explores the possibility for the global community to overcome the challenges of climate change and energy poverty to reach a brighter future through the power of nuclear energy...”
Top ten things to do in Indianapolis
Over 40 restaurants within one mile of the Marriott Indianapolis Downtown.
After our meeting events, the excitement continues with Indy's surprising nightlife!
Enhance your visibility at the 2023 ANS Annual Meeting by becoming a sponsor. All sponsors are recognized on the meeting website, in promotional communications, and the mobile app. All sponsors will also be acknowledged at the Opening Plenary and on signage displayed throughout the meeting. Sponsorship packages are limited, so reserve your package early. Download the ANS Annual Meeting 2023 Prospectus