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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
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!
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Jun 2025
Jan 2025
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Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Technical Session|Computational Thermal Hydraulics
Tuesday, August 22, 2023|10:45AM–12:25PM EDT|Columbia 1
Session Chair:
Chul-Hwa Song (KAERI)
Alternate Chair:
Cheng-Kai Tai (NCSU)
Session Organizer:
Stephen M. Bajorek (USNRC)
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Trace Code Reflood Thermal-Hydraulics Benchmarking Against the NRC-PSU Rod Bundle Heat Transfer (RBHT) Test Facility
10:45–11:05AM EDT
Grant R. Garrett (Penn State), Douglas J. Miller (Penn State), Turki Almudhhi (Penn State), Fan-Bill Cheung (Penn State), Brian R. Lowery (ARL), Molly K. Hanson (ARL), Stephen M. Bajorek (NRC), Kirk Tien (NRC), Chris L. Hoxie (NRC)
Paper
SBLOCA Analysis of Floating Nuclear Reactor Under Ocean Condition Using MARS-KS Moving Reactor Model
11:05–11:25AM EDT
Yujoeng Ko (Seoul Nat'l Univ.), Hyungjoo Seo (Seoul Nat'l Univ.), Hyoung Kyu Cho (Seoul Nat'l Univ.), Han Rim Choi (KEPCO-ENC)
Implementation of the Homogeneous Equilibrium Model (HEM) into the SAM Code for Two-Phase Flow Modeling
11:25–11:45AM EDT
Michael Gorman (TAMU), Ling Zou (ANL), Rui Hu (ANL), Yassin A. Hassan (TAMU)
Core Damage Extent Analysis of Large-Break LOCA for 4-Loop Pressurized Water Reactor with Detailed 3D Model of Reactor Pressure Vessel and Core
11:45AM–12:05PM EDT
Matthias Jobst (Helmholtz-Zentrum Dresden-Rossendorf), Eduard Diaz-Pescador (Helmholtz-Zentrum Dresden-Rossendorf), Sören Kliem (Helmholtz-Zentrum Dresden-Rossendorf)
Research on Accelerated Methods for Three-Dimensional Nuclear System Analysis Programs
12:05–12:25PM EDT
Ge Li (Xi’an Jiaotong Univ.), Li Huaqi (Northwest Institute of Nuclear Technology), Shan Jianqiang (Xi’an Jiaotong Univ.)
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