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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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.
John J. Taylor, Karl E. Stahlkopf, Electric Power Research Institute, 3412 Hillview Avenue, P.O. Box 10412, Palo Alto, California 94303
Nuclear Technology | Volume 91 | Number 1 | July 1990 | Pages 129-132
Technical Paper | Safety of Next Generation Power Reactor / Economic | doi.org/10.13182/NT90-A34449
Articles are hosted by Taylor and Francis Online.
Despite the Shoreham and Rancho Seco shutdowns and very slow progress in radioactive waste disposal, there are signs that a more positive atmosphere for nuclear power development is on the horizon. Concerns about acid rain and the possible consequences of burning fossil fuels on the “greenhouse” effect have spurred national legislative action to provide money for improved nuclear reactor technology. A U.S. Nuclear Regulatory Commission (NRC) Reorganization Act to replace the NRC with the new Nuclear Safety Administration has been introduced. New legislation concerning the uranium enrichment industry has also been introduced to clarify existing industry costs and stimulate the domestic mining industry. Several drafts of the Nuclear Standardization Reform Act are being considered for introduction. Antinuclear power initiatives in Oregon, Massachusetts, and Maine have failed to shut down nuclear power plants. Finally, NRC has taken a strong step toward assuring the ability to license nuclear power plants more easily by instituting features of one-step licensing through changes to 10CFR52. The nuclear utility industry has taken a number of steps to improve current nuclear power systems through the “drive for excellence” in operation and substantial research and development to enhance safety reliability and availability. A major program has been undertaken to develop an advanced light water reactor for deployment as the next increment of nuclear power generating capacity in the United States. Other programs are actively pursuing the completion of conceptual designs of the liquid-metal reactor and the modular high-temperature gas-cooled reactor. If the initiatives undertaken by Congress and the industry are supported, nuclear power will be the ultimate component of an electrified “nonsmoking” energy system, providing safe, reliable, and affordable energy in the twenty-first century.