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!
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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.
David A. White, Fathurrachman
Nuclear Technology | Volume 110 | Number 2 | May 1995 | Pages 220-227
Technical Paper | Enrichment and Reprocessing System | doi.org/10.13182/NT95-A35119
Articles are hosted by Taylor and Francis Online.
The methodology necessary to design a solvent extraction plant for isotope separation by chemical exchange is outlined. This process involves the calculation of the number of stages used in banks of mixer settlers used in such a plant. The feed is introduced at both ends of the plant, and the product is withdrawn at one end and the tailings at another. The resulting analysis, illustrated for the case of uranium enrichment, produces a fairly simple algorithm, and then more complicated configurations are examined. The method of design can be used for other systems where the isotope separation factors are more favorable.
