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
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Industry Update—May 2025
Here is a recap of industry happenings from the recent past:
TerraPower’s Natrium reactor advances on several fronts
TerraPower has continued making aggressive progress in several areas for its under-construction Natrium Reactor Demonstration Project since the beginning of the year. Natrium is an advanced 345-MWe reactor that has liquid sodium as a coolant, improved fuel utilization, enhanced safety features, and an integrated energy storage system, allowing for a brief power output boost to 500-MWe if needed for grid resiliency. The company broke ground for its first Natrium plant in 2024 near a retiring coal plant in Kemmerer, Wyo.
William M. Jacobi
Nuclear Technology | Volume 88 | Number 2 | November 1989 | Pages 183-189
Technical Paper | NSF Workshop on the Research Needs of the Next Generation Nuclear Power Technology / Fission Reactor | doi.org/10.13182/NT89-A34326
Articles are hosted by Taylor and Francis Online.
Although the time to develop new energy sources has been extended, the need for economic liquid-metal breeder reactors remains a key element in our economic future. In the United States, the development of liquid-metal reactors (LMRs) is directed toward reduction of fuel cycle and plant capital costs to promote early deployment as an economically competitive alternative to light water reactors. Reactor plant improvements have been made that focus on inherent reactor safety, plant modularity, and prepackaging of plant components. Alternate fuel systems and dramatic extension of fuel lifetimes offer potential for major cost improvements. With an economically competitive design, LMRs can be deployed in the near-term and refined over several design generations to achieve full commercial development by the time breeding and reprocessing are required to increase utilization of world uranium resources.