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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.
Friedrich H. Helm
Nuclear Science and Engineering | Volume 16 | Number 2 | June 1963 | Pages 235-238
Technical Paper | doi.org/10.13182/NSE63-A26505
Articles are hosted by Taylor and Francis Online.
The method for evaluating thermal neutron flux measurements by foils, which was developed by Ritchie and Eldridge, has proven to be a valuable tool for the experimenter. However, there is some difficulty in obtaining the proper definitions and numerical quantities essential for its application. Especially, there developed a need for an easy way to find the function g(γ, τ). Therefore, a compilation was made of all important définitions, exact and approximate relations, and numerical values pertaining to this problem.
