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
Researchers use one-of-a-kind expertise and capabilities to test fuels of tomorrow
At the Idaho National Laboratory Hot Fuel Examination Facility, containment box operator Jake Maupin moves a manipulator arm into position around a pencil-thin nuclear fuel rod. He is preparing for a procedure that he and his colleagues have practiced repeatedly in anticipation of this moment in the hot cell.
Trine-Yie Dawn, Ing-Jane Chen
Nuclear Science and Engineering | Volume 72 | Number 2 | November 1979 | Pages 237-243
Technical Paper | doi.org/10.13182/NSE72-237
Articles are hosted by Taylor and Francis Online.
Based on two properties of the discrete eigenvalues of the one-speed neutron transport equation with anisotropic scattering, we discuss the number and mathematical character of these discrete eigenvalues when the scattering function can be expanded into a finite series of Legendre polynomials. Such special cases as linearly and quadratically anisotropic scattering are studied in detail, and our results are plotted in parameter space. We also investigate the two physically interesting problems of isotropic scattering and linearly anisotropic scattering in the center-of-mass system. The discrete eigenvalues of these two problems are obtained numerically.
