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 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!
Latest Magazine Issues
Nov 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
November 2025
Fusion Science and Technology
Latest News
Sellafield awards $6B ‘high hazard risk reduction’ framework contract
Sellafield Ltd., the site license company overseeing the decommissioning of the United Kingdom’s Sellafield nuclear site in Cumbria, England, has awarded a 15-year framework contract worth up to £4.6 billion ($6 billion) to support “high hazard risk reduction programs” at the site.
P. M. Lantz, C. R. Baldock and L. E. Idom
Nuclear Science and Engineering | Volume 20 | Number 3 | November 1964 | Pages 302-306
Technical Paper | doi.org/10.13182/NSE64-A19573
Articles are hosted by Taylor and Francis Online.
The thermal-neutron capture cross section of Ce140 and its resonance capture integral, measured by an activation method, have been found to be 0.59 ± .06 barns and 0.48 ± .05 barns, respectively. The effective capture cross section of Ce141 in the Materials Testing Reactor was found to be 29 ± 3 barns. This value was determined by mass analysis for the neutron-induced Ce142.