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
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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Apr 2025
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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.
R. W. Steffens, J. C. Crowe, G. L. Borsheim, J. C. Wormeli
Nuclear Technology | Volume 11 | Number 2 | June 1971 | Pages 213-221
Technical Paper | Radioactive Waste | doi.org/10.13182/NT71-A30886
Articles are hosted by Taylor and Francis Online.
A nondestructive testing (NDT) program is currently being developed at Battelle-Northwest, under the sponsorship of the Atlantic Richfield Hanford Company, to provide integrity assurance for waste capsules containing solidified radioactive cesium and strontium. Initiation of this project early in the design program for the waste capsules has permitted advanced nondestructive testing techniques to be included in the testing program. An ultrasonic inspection system has been developed and successfully tested in the laboratory using simulated specimens. Acoustic emission techniques, examined for potential use as a weld quality monitor, are promising but development is not yet complete.