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
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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Apr 2025
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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.
W. V. Goeddel
Nuclear Technology | Volume 3 | Number 10 | October 1967 | Pages 599-614
Technical Paper and Note | doi.org/10.13182/NT67-A27919
Articles are hosted by Taylor and Francis Online.
Coated-particle fuels have been adopted for all of the current and proposed high-temperature gas-cooled thermal reactors: the General Atomic High-Temperature Gas-Cooled Reactor (HTGR), the OECD DRAGON Reactor Experiment, the German pebble-bed reactors (AVR and THTR), and the Ultra-High-Temperature Reactor Experiment (UHTREX) of the Los Alamos Scientific Laboratory. In addition, coated-particle fuel is being considered for the British Advanced Gas-Cooled Reactor (AGR) in order to achieve higher fuel-surface temperatures. The design and operational characteristics of these reactors are summarized, and detailed descriptions and illustrations of their fuel elements, fuel compacts, and coated-particle fuel are presented. A comprehensive list of references is given for each reactor and its fuel.
