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.
Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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!
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Nuclear Science and Engineering
June 2025
Nuclear Technology
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Latest News
Atomic Museum marks 20 years of education
The National Atomic Testing Museum, better known as the Atomic Museum, is celebrating its 20th anniversary this year. Located in Las Vegas, Nev., the museum was established in 2005 to preserve the legacy of the Nevada Test Site, now called the Nevada National Security Sites.
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.
