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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.
Don M. Parkin, Donald G. Schweitzer
Nuclear Technology | Volume 22 | Number 1 | April 1974 | Pages 108-114
Technical Paper | Fusion Reactor Materials / Material | doi.org/10.13182/NT74-A16279
Articles are hosted by Taylor and Francis Online.
Multifilamentary composite wires of Nb Ti and Nb3Sn have been irradiated at 60 ± 5°C with fast neutrons to fluences of 6 × 1019 n/cm2. Measurements of the superconducting critical current, Ic , as a function of transverse field show that the NbTi wires are only moderately affected by neutron irradiation. At a fluence of 6 × 1019 n/cm2, Ic (40 kG) is 82% of the unirradiated value. The Nb3Sn composites undergo a catastrophic reduction in Ic with an apparent threshold at a fluence of 2 to 3 × 1018 n/cm2. Between 2 to 3 × 1018 and 1.1 × 1019 n/cm2, Ic (40 kG) has been reduced to 4% of the unirradiated value. At a fluence of 6×1019 n/cm2, the upper critical field of Nb3Sn has been reduced from 240 kG to 9 ± 0.5 kG. The corresponding Tc has been decreased from 16.4 to 6°K. Annealing of Nb3Sn samples irradiated to 1.1 × 1019 n/cm2 produces only 19% recovery in Ic after h at 400°C.
