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
October 2025
Latest News
Amazon provides update on its Washington project with X-energy
A year ago this month, Amazon led a $500 million investment in X-energy, alongside Citadel founder Ken Griffin, the University of Michigan, and other investors. In addition to that financing, Amazon pledged to support the development of an initial four-unit, 320-MW project with Energy Northwest in Washington state.
Richard V. Babcock, Stanley L. Ruby
Nuclear Science and Engineering | Volume 8 | Number 5 | November 1960 | Pages 410-415
Technical Paper | doi.org/10.13182/NSE60-A25822
Articles are hosted by Taylor and Francis Online.
An instrument has been developed which can nondestructively determine the U235 and boron content of highly enriched, unirradiated fuel assemblies in five to fifteen minutes per element. Two nuclear measurement methods are used: counting of the natural radioactivity of U235 and neutron attenuation measurements. For MTR and ETR fuel elements, the instrument appears to be accurate to 0.3% and 4.0% in terms of the respective U235 and boron contents.