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
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
Gregory A. Johnson
Nuclear Technology | Volume 170 | Number 3 | June 2010 | Pages 416-421
Technical Paper | Fuel Cycle and Management | doi.org/10.13182/NT10-A10327
Articles are hosted by Taylor and Francis Online.
Transuranic (TRU) conversion ratio is a key cost driver of the advanced fuel cycle. The reactor capacity required to consume the national TRU inventory increases as conversion ratio increases. Achieving zero conversion ratio with metal alloy or oxide fuels is fraught with technical challenges. These difficulties can be overcome by hydriding the metal alloy fuel. In this paper, we present the novel concept of using a uranium-free hydrided metal alloy fuel to achieve zero conversion ratio. A reactor core composed of this novel fuel and that would fit in the Sodium Advanced Fast Reactor core geometry was developed; core performance and TRU consumption is estimated and presented. Concerns about the safety of uranium-free fuels are addressed. Although the Doppler effect is nonexistent in a uranium-free fast core, a substantial Doppler effect is present with the uranium-free hydrided metal alloy fuel.