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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.
N. J. Pattenden, J. A. Harvey
Nuclear Science and Engineering | Volume 17 | Number 3 | November 1963 | Pages 404-410
Technical Paper | doi.org/10.13182/NSE63-A17389
Articles are hosted by Taylor and Francis Online.
The neutron total cross section of U233 was measured from 0.07 to 10,000 ev, using the ORNL fast chopper time-of-flight neutron spectrometer. Below 30 ev the neutron energy resolution varied from 0.7 to 1.5% and above 30 ev it was 60 nanosec/meter. A description is given of the measurements, the samples, and some of the errors in the measurements. The errors on the total cross section data are estimated to be from ±0.6 to 1.1% below 1 ev, from 1.1 to 2.5% between 1 and 100 ev, and from 1.5 to 5.5% above 100 ev.
