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
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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 Technology
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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.
John C. Lee, Jie Du
Nuclear Technology | Volume 108 | Number 1 | October 1994 | Pages 61-79
Technical Paper | Nuclear Fuel Cycle | doi.org/10.13182/NT94-A35043
Articles are hosted by Taylor and Francis Online.
Assembly-level collision probability calculations are performed with the CASMO code to study the feasibility and efficiency of recycling transuranics (TRUs) in pressurized water reactors (PWRs). A zero-dimensional equilibrium cycle approach is combined with an extrapolation algorithm to estimate equilibrium cycle configurations in a three-zone PWR core. A whole-core implementation of mixed-oxide assemblies containing TRUs may require an unusually large loading of TRUs, but a (2 × 2) colorset arrangement of TRU and uranium assemblies, with a sufficient 235U enrichment, may yield a reasonable PWR configuration. Colorset arrangements will not result in net depletion of TRUs but will slow down the accumulation of TRUs in a continuing PWR economy.
