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 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!
Latest Magazine Issues
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
WIPP’s SSCVS: A breath of fresh air
This spring, the Department of Energy’s Office of Environmental Management announced that it had achieved a major milestone by completing commissioning of the Safety Significant Confinement Ventilation System (SSCVS) facility—a new, state-of-the-art, large-scale ventilation system at the Waste Isolation Pilot Plant, the DOE’s geologic repository for defense-related transuranic (TRU) waste in New Mexico.
Nuclear Criticality Safety Division Topical Meeting (NCSD 2022)
Plenary and Panel Session
Thursday, June 16, 2022|8:00–9:45AM PDT|Laguna A
Patterned after the highly successful closing plenary of ICNC 2019, the closing plenary of NCSD 2022 will provide a forum for each of the leaders of the 10 different technical tracks to present an overview of the papers discussed in their sessions share any emerging issues or themes with the broader NCS community. Each track representative will give a 5-10 minute highlight discussion. The meeting will be closed with preview presentation on ICNC 2023, which will be held in October of 2023 in Sendai, Japan.
Track 1: Lessons Learned in Nuclear Criticality Safety- Accidents, infractions, and lessons learned.
Track 2: Decontamination and Decommissioning- Recovery, restoration, and their respective challenges.
Track 3: Interesting Anomalies in Nuclear Criticality Safety- Non-intuitive phenomena, unexpected results, and interesting stories.
Track 4: Operational Practices- Operational criticality safety activities and applications.
Track 5: Fuel Storage, Transportation, and Disposal- Burnup credit, transportation needs, and storage issues.
Track 6: Experiments and Benchmarks- Measurements, experiments, and benchmarks.
Track 7: Codes, Data, and Methods- Analyses, validation, and sensitivities/uncertainties.
Track 8: Nuclear Criticality Safety for LEU+/HALEU- Response to growing needs for increased uranium enrichment.
Track 9: Knowledge Transfer- Education, Professional Development, and Training.
Track 10: Innovative Technologies and Thinking- Machine learning, Artificial Intelligence, etc.
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