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
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
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|Fission Surface Power
Wednesday, May 7, 2025|3:15–4:55PM CDT|Atlantis/Discovery/Columbia (Marriott)
Session Chair:
Tyler Steiner (NASA Glenn Research Center)
Session Organizer:
Alternate Chair:
Robert Okojie (NASA Glenn Research Paper)
Track Organizer:
Harold Gerrish (Marshall Space Flight Center)
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
SNAP-10A Experimental Criticality Benchmark Estimated By OpenMC Monte Carlo Code
3:15–3:40PM CDT
Zelong Zhao (CIAE), Gu Hu (CIAE)
Paper
Feasibility Assessment of Micro Molten Salt and Metal Reactor (MSMR) for Long Life Lunar Base Power
3:40–4:05PM CDT
Jaehyun Ryu (KAIST), Yonghee Kim (KAIST)
Multiphysics Modeling of SNAP 10A/2 Space Reactor with Cardinal
4:05–4:30PM CDT
Maximiliano Dalinger (Penn State), Elia Merzari (Penn State), Tri Nguyen (Penn State), Michael Seneca (Penn State), Richard Martineau (Sawtooth Simulation, LLC)
Optimization of the BISON UN Fission Gas Release and Swelling Model
4:30–4:55PM CDT
Zachary Miller (Univ. California, Berkeley), Massimiliano Fratoni (Univ. California, Berkeley), Alex Levinsky (LANL), Galen T. Craven (LANL), Christopher Matthews (LANL)
To join the conversation, you must be logged in and registered for the meeting.