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
2025 ANS Winter Conference & Expo
November 9–12, 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!
Latest Magazine Issues
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
Fusion Science and Technology
Latest News
TVA nominees promise to support advanced reactor development
Four nominees to serve on the Tennessee Valley Authority Board of Directors told the Senate Environment and Public Works Committee that they support the build-out of new advanced nuclear reactors to meet the increased energy demand being shouldered by the country’s largest public utility.
J. B. Czirr, M. L. Stelts
Nuclear Science and Engineering | Volume 52 | Number 3 | November 1973 | Pages 299-309
Technical Paper | doi.org/10.13182/NSE73-A19477
Articles are hosted by Taylor and Francis Online.
As part of a continuing program to accurately measure neutron capture cross sections, we have obtained data for 165Ho and 197Au in the 167-eV to 0.6-MeV energy range. All capture reactions are measured relative to the fission rate of 235U for neutron energies above 800 eV and to the 10B(n, αo + α1) reaction below 13 keV. In addition, current best estimates of σF(235U) and σn,α(10B) are used to convert these ratios to up-to-date capture cross sections. The 3.9-eV “black resonance” of 165Ho is used to normalize all cross sections.
