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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
May 2025
Fusion Science and Technology
Latest News
Sam Altman steps down as Oklo board chair
Advanced nuclear company Oklo Inc. has new leadership for its board of directors as billionaire Sam Altman is stepping down from the position he has held since 2015. The move is meant to open new partnership opportunities with OpenAI, where Altman is CEO, and other artificial intelligence companies.
19th International Conference on Probabilistic Safety Assessment and Analysis (PSA 2025)
Technical Session|Sponsored by NISD
Monday, June 16, 2025|3:15–5:00PM CDT|Purdue/Wisconsin
Session Chair:
David Grabaskas
Session Organizer:
Alternate Chair:
Jonathen Facemire
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Developing a Probabilistic Risk Assessment Framework for Sodium-Cooled Thermal Reactors: Addressing Unique Challenges and Uncertainties
3:15–3:35PM CDT
Asmaa S. Farag (Nuclear Installations Safety Division), Parthasarathy Chandran (Aalo Atomics), Amir Afzali (Aalo Atomics), Curtis L. Smith (INL)
Paper
Xe-100 PRA Event Sequence Models in Risk-Informed Applications
3:35–3:55PM CDT
Huafei Liao (X-Energy LLC), Karl N. Fleming (KNF Consulting Services LLC), Glen I. Lawson (X-Energy LLC), Mihai A. Diaconeasa (NCSU)
Application Research of the TI-RIPB Licensing Basis in China's Multi-Module High-Temperature Gas-Cooled Reactor
3:55–4:15PM CDT
Jun Zhao (National Tsinghua University), Jiejuan Tong (INET, Tsinghua University), Yanhua Zheng (INET, Tsinghua university), Jingang Liang (INET,Tsinghua university), liguo Zhang (INET,Tsinghua university), Fubing Chen (INET,Tsinghua university), Hongru ZHAO (INET, Tsinghua university)
To join the conversation, you must be logged in and registered for the meeting.
