ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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.
T. B. Burley, M. D. Freshley
Nuclear Technology | Volume 9 | Number 2 | August 1970 | Pages 233-241
Fuel | Symposium on Theoretical Models for Predicting In-Reactor Performance of Fuel and Cladding Material | doi.org/10.13182/NT70-A28812
Articles are hosted by Taylor and Francis Online.
Plenum gas temperature and internal gas pressure buildup were measured during irradiation in four vibrationally compacted UO2-2 wt% PuO2 fuel rods. Two each of the four instrumented fuel rods operated to peak burnups of 9900 and 6000 MWd/ MTM, respectively. Experimental results indicate that sorbed gases and moisture released from the fuel react rapidly with the Zircaloy cladding and do not contribute to the internal pressure. The predominant modes of fission gas release from high and lower power fuel rods is different. The rates of pressure buildup in the high and low burnup fuel rods, which correspond to about 34 and 12% fission gas release, respectively, were consistent with fuel temperature-dependent fission gas release fractions predicted from postirradiation gas collection data obtained from similar fuel rods. Measured plenum gas temperatures during irradiation varied directly with coolant outlet temperature.
