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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
J. Hirota, M. Nakano, S. Iijima, K. Shirakata
Nuclear Science and Engineering | Volume 87 | Number 3 | July 1984 | Pages 252-261
Technical Paper | doi.org/10.13182/NSE84-A17781
Articles are hosted by Taylor and Francis Online.
An experimental study of the heterogeneous liquid-metal fast breeder reactor core has been made using FCA VII-3 assemblies of an axially heterogeneous configuration. The internal blankets inserted in these assemblies differed in composition, arrangement, and thickness. The analysis was carried out using the Japan Atomic Energy Research Institute Fast Set Version II and the diffusion code in R-Z geometry. The S4 calculation was made to evaluate the transport effects. Comparison between the calculated and experimental results reveals that the eigenvalue and the plutonium sample worth in the core are underestimated for the heterogeneous assembly, although they are well represented for the homogeneous assembly. The 238U capture rate is underestimated in the internal blanket relative to the core of the heterogeneous assembly. Further study is needed to solve the inconsistent prediction of the sodium-void worth observed between the heterogeneous and homogeneous assemblies.