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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
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!
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Apr 2025
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Nuclear Science and Engineering
May 2025
Nuclear Technology
Fusion Science and Technology
Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Technical Session|Verification, Validation and Uncertainty Quantification
Wednesday, August 23, 2023|10:45AM–12:25PM EDT|Embassy
Session Chair:
Lucia Rueda (ENGIE)
Alternate Chair:
Yue Jin
Session Organizer:
Joshua Kaizer
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Validation of the Thermal-Hydraulic Models in COBRA-TF Based on the NRC/PSU RBHT Benchmark
10:45–11:05AM EDT
Yue Jin (Univ. Missouri), Fan-Bill Cheung (Penn State), Stephen M. Bajorek (U.S. Nuclear Regulatory Commission), Kirk Tien (U.S. Nuclear Regulatory Commission), Chris L. Hoxie (U.S. Nuclear Regulatory Commission)
Paper
Validation of VIPRE-W/MEFISTO-T Subchannel Analysis Code for Void Fraction Predictions in Modern BWR Fuel Assemblies
11:05–11:25AM EDT
Jean-Marie Le Corre (Westinghouse Electric Sweden)
Uncertainty Analysis and Sensitivity Study on RBHT Blind Tests with Subchannel Code CTF
11:25–11:45AM EDT
Lucia Rueda-Villegas (Tractebel ENGIE), Adrien Dethioux (Tractebel ENGIE), Christophe Schneidesch (Tractebel ENGIE), Jinzhao Zhang (Tractebel ENGIE)
Presentation Slides (Visible to Attendees) — Presentation_Slides
Assessment and Testing of CTF for LOCA Reflood Conditions
11:45AM–12:05PM EDT
R. Salko (ORNL), A. Wysocki (ORNL), B. Hizoum (ORNL), N. Capps (ORNL)
Application of CTF Subchannel Code for BWR Reload Licensing Analysis Support
12:05–12:25PM EDT
K. Nikitin (Paul Scherrer Institute), B. Arnold (Paul Scherrer Institute), I. Clifford (Paul Scherrer Institute), H. Ferroukhi (Paul Scherrer Institute)
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