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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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.
M. Ogawa, T. Kunugi, The ITER/FER Safety Group
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 2036-2040
Safety, Recycling, and Waste Management | doi.org/10.13182/FST92-A30020
Articles are hosted by Taylor and Francis Online.
When a loss of vacuum accident (LOVA) would occur in a nuclear fusion experimental reactor, a buoyancy-driven exchange flow takes place through breaches of a vacuum vessel. To concern the safety analysis, experiments were carried out to examine the effects of the enclosure configuration and the breach arrangement on the exchange flow rate at the vertical and/or horizontal breaches in an annular enclosure. Comparing the experimental results with the existing correlations of the exchange flow rate, the correlation based on the Bernoulli equation was found to provide the conservative results for small breaches in aspect of the release of radioactive materials from the vacuum vessel.
