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.
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
2024 ANS Annual Conference
June 9–12, 2024
Las Vegas, NV|The Mirage
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
Latest Journal Issues
Nuclear Science and Engineering
Fusion Science and Technology
The Sodium Reactor Experiment
In February 1957, construction was completed on the Sodium Reactor Experiment (SRE), a sodium-cooled, graphite-moderated reactor with an output of 20 MWt. The design of theSRE had begun three years earlier in 1954, and construction started in April 1955. On April 25, 1957, the reactor reached criticality, and the SRE operated until February 1964.
May 19, 2021|12:00–1:00PM (1:00–2:00PM EDT)
Available to All Users
Help us celebrate the launch of our newest virtual field trip and learn how ANS has helped reach more than 1.5 million K-12 students through Navigating Nuclear: Energizing Our World. This special event includes a viewing of our latest virtual field trip, Nuclear Frontiers: Powering Possibility. Launched May 6, 2021, the video explores the amazing ways that nuclear science is fueling earthly innovation and deep space exploration.
Following the viewing, ANS President Mary Lou Dunzik-Gougar was joined by several special guests, including some of the key participants in Nuclear Frontiers, for a brief Q&A.
• Melinda Higgins, U.S. Department of Energy Office of Nuclear Energy
• Franklin Chang-Diaz, NASA Hall of Fame astronaut; CEO, Ad Astra Rocket Company
• Candace Davison, Assistant Director for Education and Outreach, Radiation Science and Engineering Center, Penn State University
• David Poston, Chief Reactor Designer, Los Alamos National Laboratory
• Dr. Mary Lou Dunzik-Gougar, ANS President 2020-2021