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
Nuclear and Emerging Technologies for Space (NETS 2025)
May 4–8, 2025
Huntsville, AL|Huntsville Marriott and the Space & Rocket Center
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
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
Latest News
U.S. nuclear capacity factors: Stability and energy dominance
Nuclear generation has inertia. Massive spinning turbines keep electricity flowing during grid disturbances. But nuclear generation also has a kind of inertia that isn’t governed by the laws of motion.
Starting—and then finishing—a power reactor construction project requires significant upfront effort and money, but once built a reactor can run for decades. Capacity factors of U.S. reactors have remained near 90 percent since the turn of the century, but it took more than a decade of improvements to reach that steady state. The payoff for nuclear investments is long-term and reliable.
Technical Session|Sponsored by OPD
Thursday, December 2, 2021|3:05–4:50PM EST |Gunston
Session Chair:
Tim Crook (MCR Performance Solutions)
Alternate Chair:
Erin Wehlage (Studsvik Scandpower)
Session Organizer:
W. Neal Mann (ANL)
Student Assistant:
David Reger
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The Fast Modular Reactor (FMR) Pre-Application Regulatory Engagement Plan
3:10–3:30PM EST
Chun Fu (General Atomics Electromagnetic Systems), Hangbok Choi (General Atomics Electromagnetic Systems), John Bolin (General Atomics Electromagnetic Systems)
Paper
Monte Carlo Analysis of Coolant Stream Impurity Gamma Emissions for Fuel Failure Monitoring in Generation IV Gas-Cooled Fast Reactors
3:30–3:50PM EST
Londrea Garrett (Univ. of Michigan), Milos Burger (Univ. of Michigan), Adam Burak (Univ. of Michigan), Victor Petrov (Univ. of Michigan), Annalisa Manera (Univ. of Michigan), Xiaodong Sun (Univ. of Michigan), Piyush Sabharwall (INL), Igor Jovanovic (Univ. of Michigan)
NERTHUS MSR Neutronics Model
3:50–4:10PM EST
Jarod Richardson (Univ. of Tenn., Knoxville), Ondrej Chvala (Univ. of Tenn., Knoxville)
Joining of FeCrAl Based Alloys for Lead Cooled Fast Reactor Applications
4:10–4:30PM EST
Brandon Bohanon (Univ. of New Mexico), Shuprio Ghosh (Univ. of New Mexico), Cemal Cakez (Univ. of New Mexico), Khaled Talaat (Univ. of New Mexico), Md Mehadi Hassan (Univ. of New Mexico), Osman Anderoglu (Univ. of New Mexico), Keith Woloshun (LANL), Stuart Maloy (LANL), Cetin Unal (LANL)
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