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
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
No impact from Savannah River radioactive wasps
The news is abuzz with recent news stories about four radioactive wasp nests found at the Department of Energy’s Savannah River Site in South Carolina. The site has been undergoing cleanup operations since the 1990s related to the production of plutonium and tritium for defense purposes during the Cold War. Cleanup activities are expected to continue into the 2060s.
Keshab Ganguly
Nuclear Science and Engineering | Volume 93 | Number 3 | July 1986 | Pages 308-312
Technical Note | doi.org/10.13182/NSE86-A17759
Articles are hosted by Taylor and Francis Online.
The ideas of the FN and transport PN approximation (TPN) methods in transport theory are suitably combined to formulate an accurate approximation scheme for the monoenergetic transport equation. The method involves the use of the singular integral equation for the surface flux as used in the FN method and angular flux representation of the TPN approximation. This leads to a consistent approximate scheme for the computation of angular flux.