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Conference Spotlight
2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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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Latest News
Japan gets new U for enrichment as global power and fuel plans grow
President Trump is in Japan today, with a visit with new Prime Minister Sanae Takaichi on the agenda. Takaichi, who took office just last week as Japan’s first female prime minister, has already spoken in favor of nuclear energy and of accelerating the restart of Japan’s long-shuttered power reactors, as Reuters and others have reported. Much of the uranium to power those reactors will be enriched at Japan’s lone enrichment facility—part of Japan Nuclear Fuel Ltd.’s Rokkasho fuel complex—which accepted its first delivery of fresh uranium hexafluoride (UF₆) in 11 years earlier this month.
W. Ciechanowicz
Nuclear Science and Engineering | Volume 31 | Number 3 | March 1968 | Pages 465-473
Technical Paper | doi.org/10.13182/NSE68-A17589
Articles are hosted by Taylor and Francis Online.
The paper involves the formulation of the transient digital control problem of power reactors. Simplifications have been considered that have to be made to enable modern control theory to be applicable for use in digital control. Included in the discussion are the approaches of digital control systems that would statisfy stability, autonomy, and optimal filtering criteria. The aim of this discussion is to propose possible solutions of the considered problem and further investigations.
