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
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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!
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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.
E. D. Jones, A. McBride, K. C. Thomas
Nuclear Technology | Volume 52 | Number 3 | March 1981 | Pages 393-400
Technical Paper | Fission Reactor | doi.org/10.13182/NT81-A32713
Articles are hosted by Taylor and Francis Online.
Fabrication and welding methods used to make 217-rod grid spacers for liquid-metal fast breeder reactor application have been developed. Grid straps are formed from cold-worked Type 316 stainless-steel strip material and are assembled into a hexagonalshaped honeycomb grid, using resistance welding. A support strap is then welded onto the periphery of the grid using a manual gas tungsten arc welding (GTAW) process. The grids (11) are then located and appropriately spaced inside a hexagonal duct and attached using an automatic GTAW process. Three of these subassemblies have been completed and are awaiting loading of the fuel rods. After loading, the subassemblies are to be inserted in driver positions of the Fast Flux Test Facility for the acceptance test phase.
