ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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!
Latest Magazine Issues
Dec 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
Fusion Science and Technology
November 2025
Latest News
3D-printed tool at SRS makes quicker work of tank waste sampling
A 3D-printed tool has been developed at the Department of Energy’s Savannah River Site in South Carolina that can eliminate months from the job of radioactive tank waste sampling.
J. R. Lemley, G. A. Keyworth, B. C. Diven
Nuclear Science and Engineering | Volume 43 | Number 3 | March 1971 | Pages 281-285
Technical Paper | doi.org/10.13182/NSE71-A19974
Articles are hosted by Taylor and Francis Online.
The fission cross section of 235U has been measured with a nominal resolution of 1 nsec/m from 20 eV to 100 keV. Structure is seen over the entire range with fluctuations as great as 40% in the range 10 to 100 keV. These measurements have an average absolute accuracy of 8% and are based upon the 6Li(n, α) cross section. Some questions are raised concerning existing cross sections that assume smooth energy variation in the region of 10 to 50 keV.
