ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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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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.
J. Wei, L. Bromberg, R. C. Myer, D. R. Cohn
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 1071-1075
Plasma Heating and Current Drive — II | doi.org/10.13182/FST89-A39834
Articles are hosted by Taylor and Francis Online.
Neutral beam injection into CIT is discussed. Monte Carlo methods are used to evaluate available windows of operating density and beam energies. The beam deposition profile is determined for a wide range of parameters. The effects of the excitation enhanced ionization cross section have been studied, both with and without impurities. Enhanced ionization processes and impurities are found to prevent the penetration of 300 keV deuterium beams. Requirements for low energy beam injection are determined. In order to utilize the TFTR power supplies (300 kV maximum), it is necessary to inject hydrogen beams.
