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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.
K. F. Schoepf, M. Heindler, A. A. Harms
Nuclear Science and Engineering | Volume 80 | Number 4 | April 1982 | Pages 700-710
Technical Note | doi.org/10.13182/NSE82-A18979
Articles are hosted by Taylor and Francis Online.
A comparative analysis of three distinct classes of self-sufficient nuclear energy systems is undertaken: 1. fast breeder-converter system 2. deuterium-tritium fusion reactor 3. fusion-fission hybrid/symbiont. Consistent power and isotope balances are imposed and relevant performance criteria are established. While no one system seems to excel in all physical criteria, we find that the improved neutron economy of the combined fusion-fission system provides the basis for a substantial and enhanced range of fuel and energy production capacity.
