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
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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.
Liu Cheng-An, Wang Tian-Long, Lu Xun
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 876-881
Advanced Reactor | doi.org/10.13182/FST91-A29455
Articles are hosted by Taylor and Francis Online.
With the Tokamak driver parameters that could be chieved round about 2000 in the world, neutronics studies and analyses have been performed to the blanket configurtion and materials and self-shielding effect of group cross section for the commercial Tokamak fusion-fission hybrid reactor. The main concern of the study has been the assessment of the global tritium breeding ratio, the global Pu239 breeding ratio and determinmatton of the total power production. The results show that it's possible to produce 4 tons of Pu239 per year and net electric output of one GWe, that the self-shielding effect is not important for the fast fission blanket.
