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
NNSA furloughs 1,400 employees, pays contractors until end of month
After nearly three weeks of a government shutdown, the Department of Energy’s National Nuclear Security Administration has furloughed 1,400 employees and has retained 400 as essential employees who will continue working without pay.
F. F. Felber, Jr., D. R. Farmelo, V. C. Van Sickle
Nuclear Science and Engineering | Volume 25 | Number 1 | May 1966 | Pages 1-7
Technical Paper | doi.org/10.13182/NSE66-A17494
Articles are hosted by Taylor and Francis Online.
The integral 9Be (n, 2n) cross section was determined by using Be and BeO samples irradiated in the core of the Battelle Research Reactor. The value obtained was 460 ±60 mb for neutrons having energies above 2.7 MeV and a fission spectrum. Fast-neutron dosimetry was accomplished using iron, nickel, and titanium threshold detectors. The results are based on measurement of the total amount of helium produced during irradiation. Corrections were made for the small contribution from (n, α) reactions on 9Be and 16O.
