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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
Argonne creates new methodology for digital twins
Hu
Argonne National Laboratory has added a new twist to digital twin technology for research into nuclear energy. According to Rui Hu, a principal nuclear engineer at Argonne, “Our digital twin technology introduces a significant step toward understanding and managing advanced nuclear reactors, enabling us to predict and respond to changes with the required speed and accuracy.”
The research of Hu and his colleagues, “Development of Whole System Digital Twins for Advanced Reactors: Leveraging Graph Neural Networks and SAM Simulations,” was published in the American Nuclear Society journal Nuclear Technology.
Virtual representation: A digital twin technology is an accurate virtual representation of a complex system. It is updated with real-time data from sensors applied to the physical system, such as a nuclear reactor.
November 9–12, 2025 | Washington, DC |
General Chair
Sylvia J. Saltzstein (Sandia National Laboratories)
Program Chair
Emily Stein (Sandia National Laboratories)
Assistant Program Chairs
Chammi Miller (Sandia National Laboratories)
Jens Birkholzer (LBNL)
Erika Holt (VTT)
Hiroyuki Umeki (NUMO)
SUBMISSION OF SUMMARIES: JUNE 24, 2025
AUTHOR NOTIFICATION OF ACCEPTANCE: JULY 18, 2025
REVISED SUMMARIES DUE: JULY 31, 2025
The landscape of nuclear energy has evolved dramatically since our last International High-Level Radioactive Waste Management Conference (IHLRWM) in 2022. As advanced reactor development accelerates, stakeholders increasingly recognize the essential role of nuclear energy in achieving clean energy goals, enhancing energy security, and providing reliable long-term baseload power. Management of the “back end” of the fuel cycle is an important issue for all countries using or considering nuclear power. As this conference demonstrates, solutions are found through integration of science, technology, and society. IHLRWM provides an international forum for the discussion of all aspects of storage, transportation, recycling, and disposal of used/spent fuel, high-level, and long-lived waste. Innovative approaches, progress, and lessons learned will be shared amongst participants from industry, government, academia, and the interested public. Young generation and student participation is welcomed and encouraged to enrich the exchange of ideas and experiences.
Cooperation is encouraged and expected from numerous professional and technical societies, national laboratories, federal agencies, and commercial organizations throughout the world.
Submissions should contain new data and investigations in scientific or program areas that are of general interest, address problems of interdisciplinary significance, or include in-depth discussions of scientific and technical issues or waste management regulatory and policy issues. Summaries are presented orally at the conference, and presenters are expected to register for the conference. All submissions must be in English. Non-U.S. attendees requesting a visa invitation letter: registrar@ans.org.
Summaries should be a maximum of four (4) pages and a minimum of one (1) page; references, tables, figures, and acknowledgements are counted as pages. Authors will be billed a per page charge of $100 for all pages over four.
Content:
The list of topics below is meant as guidance for areas of particular interest. Summaries in areas not specifically mentioned but part of the conference scope are encouraged. Contributions from international, next-generation experts, and university communities are highly encouraged.
INTERNATIONAL PROGRESS IN DEEP GEOLOGIC DISPOSAL
Advancements in the science, engineering, implementation, and optimization of deep geologic disposal facilities.
INNOVATIONS IN PREDISPOSAL WASTE MANAGEMENT
Optimization of used/spent fuel and radioactive waste management between generation and disposal.
PROGRAM DEVELOPMENT, STRATEGY, AND POLICY
Effective strategies for implementation of a waste management program.
EMERGING TECHNOLOGIES
Technologies inspiring the future of waste management.
CROSS-CUTTING
Common challenges across all areas of radioactive waste management.
https://epsr.ans.org/meeting/?m=430
Isabel Brinker 708-579-8290 ibrinker@ans.org