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
Nano to begin drilling next week in Illinois
It’s been a good month for Nano Nuclear in the state of Illinois. On October 7, the Office of Governor J.B. Pritzker announced that the company would be awarded $6.8 million from the Reimagining Energy and Vehicles in Illinois Act to help fund the development of its new regional research and development facility in the Chicago suburb of Oak Brook.
R. W. Hardie, W. W. Little, R. P. Omberg
Nuclear Technology | Volume 26 | Number 1 | May 1975 | Pages 115-116
Technical Note | Reactor | doi.org/10.13182/NT75-A24409
Articles are hosted by Taylor and Francis Online.
A wide range of expressions is currently used to calculate the doubling time of fast breeder reactors. These formulations often result in significantly different numerical values for the doubling time using the same reactor data. Since the treatment of out-of-reactor inventory and fuel cycle losses is usually responsible for the differences, an expression for the doubling time accounting for these effects in a simple and logical manner is developed.