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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
October 2025
Nuclear Technology
September 2025
Fusion Science and Technology
Latest News
University of Nebraska–Lincoln: Home of ANS’s newest student section
Following official confirmation in June at the American Nuclear Society’s 2025 Annual Conference, the University of Nebraska–Lincoln has kicked off its first year as the newest ANS student section.
S. V. Topp
Nuclear Technology | Volume 7 | Number 2 | August 1969 | Pages 139-143
Economics | doi.org/10.13182/NT69-A28357
Articles are hosted by Taylor and Francis Online.
The utility of 238Pu produced from 237Np irradiation depends on the amount of 236Pu present. Calculations of 236Pu produced by the (n,2n) reaction on 237Np indicate that light-water power reactors produce 238Pu containing 10 to 20 times as much 236Pu as that produced in the USAEC D2O-or graphite-moderated plutonium production reactors, and the liquid-metal fast breeders produce 300 to 400 times as much 236Pu as the production reactors.