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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
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
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Jun 2025
Jan 2025
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Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Take steps on SNF and HLW disposal
Matt Bowen
With a new administration and Congress, it is time once again to ponder what will happen—if anything—on U.S. spent nuclear fuel and high-level waste management policy over the next few years. One element of the forthcoming discussion seems clear: The executive and legislative branches are eager to talk about recycling commercial SNF. Whatever the merits of doing so, it does not obviate the need for one or more facilities for disposal of remaining long-lived radionuclides. For that reason, making progress on U.S. disposal capabilities remains urgent, lest the associated radionuclide inventories simply be left for future generations to deal with.
In March, Rick Perry, who was secretary of energy during President Trump’s first administration, observed that during his tenure at the Department of Energy it became clear to him that any plan to move SNF “required some practical consent of the receiving state and local community.”1
Technical Session|Sponsored by THD|Cosponsored by IRD
Wednesday, June 18, 2025|8:00–9:45AM CDT|Northwestern/Ohio State
Session Chair:
Yang Liu (TAMU)
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Model Development of the Thermal-Hydraulic Test Loop for Potential Use for the High Flux Isotope Reactor
8:00–8:20AM CDT
Joel L. McDuffee (ORNL)
Paper
Multiphysics Coupled Calculations Using OpenFOAM, Serpent, and External Heat Conduction Solver for Prismatic GCRs: A Case Study on HTTR
8:20–8:40AM CDT
Zaid Abulawi (Young Members Group), Ville Rintala (Lappeenranta-Lahti University of Technology), Heikki Suikkanen (Lappeenranta-Lahti University of Technology), Iztok Tiselj (University of Ljubljana), Juhani Hyvarinen (Lappeenranta University of Technology), Yang Liu (TAMU)
V-SMR: Multi-Scale and Multi-Physics Integrated Simulation Platform for SMRs
8:40–9:00AM CDT
Yun-Je Cho (KAERI), Sung Hoon Choi (KAERI), Seong Ju Do (KAERI)
Progress in Neutronics and Thermal-Hydraulics Models for NBSR LEU Conversion
9:00–9:20AM CDT
Cihang Lu (Brookhaven), Athi Varuttamaseni (Brookhaven), Peter Kohut (Brookhaven), Arantxa Cuadra (Brookhaven), Lap-Yan Cheng (Brookhaven), Gerardo Aliberti (ANL), Kyle E. Anderson (ANL), John A. Stillman (ANL), Firat Cetinbas (ANL), Dhongik S. Yoon (ANL), Erik H. Wilson (ANL)
Recent Developments in STAT7 - Thermal Hydraulics Software with Statistical Uncertainty Propagation for Research and Test Reactors
9:20–9:40AM CDT
Sero Yang (ANL), Graham S. Wilson (ANL), Dhongik S. Yoon (ANL), Lin-Wen Hu (MIT), Arne P. Olson (ANL), Justin W. Thomas (ANL), Erik H. Wilson (ANL)
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