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
Latest News
House, Senate bills aim to improve nuclear decommissioning and waste disposal
Two bills were introduced in the last several weeks aiming to address nuclear power at the end of life—decommissioning plants and recycling used fuel.
L. C. Baird, P. F. Zweifel
Nuclear Science and Engineering | Volume 55 | Number 3 | November 1974 | Pages 351-353
Technical Note | doi.org/10.13182/NSE74-A23463
Articles are hosted by Taylor and Francis Online.
A simplified derivation of the Poincaré-Bertrand formula is presented in the form in which the formula is usually applied in transport theory calculations. It is not necessary to go to the complex plane for the analysis; instead, the integrals are reduced to tabulated form.
