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Conference Spotlight
2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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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.
A. W. Castleman, Jr., I. N. Tang
Nuclear Science and Engineering | Volume 29 | Number 2 | August 1967 | Pages 159-164
Technical Paper | doi.org/10.13182/NSE67-A18523
Articles are hosted by Taylor and Francis Online.
The results of an experimental study of the behavior of fission products released from metallic uranium and a U-3.5%Mo alloy into helium and air are reported. A thermochromatographic technique for investigating the nature of low concentration gas species is described and applied to the release of barium, lanthanum, cerium, and molybdenum from irradiated fuels. Barium, lanthanum, and cerium, which deposit at high temperature in helium, are not significantly released into air because of the low volatility of their respective oxides. Molybdenum, which is quite nonvolatile in helium, is released as MoO3 in air.
