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!
Latest Magazine Issues
Apr 2025
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Latest Journal Issues
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. D. B. Lambert, B. Y. C. So, F. S. Kirn, J. R. Armstrong, E. R. Ebersole, M. T. Laug
Nuclear Technology | Volume 39 | Number 3 | August 1978 | Pages 275-282
Technical Paper | Reactor | doi.org/10.13182/NT78-4
Articles are hosted by Taylor and Francis Online.
The detection of a xenon tag released from an element with breached cladding has proved to be the best method of identifying a source of fission product release in the Experimental Breeder Reactor II. From experience gained from December 1974 to September 1977 in identifying the sources of 25 major releases, allowance can now be made for the composition changes in xenon tags brought about by irradiation and for the presence of more than one tag in the cover gas. This experience has also shown that calculated ratios of fission gas to tag gas in subassemblies can be used in identifying a source of release. An ancillary method, which uses the measured 131Xe/ 134Xe ratio in the cover gas, can also determine whether or not the source is uranium. The success of these recent improvements is reflected in the short time to identify a source and in the small number of other sources—frequently none—that are suspect.
