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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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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Latest News
Dragonfly, a Pu-fueled drone heading to Titan, gets key NASA approval
Curiosity landed on Mars sporting a radioisotope thermoelectric generator (RTG) in 2012, and a second NASA rover, Perseverance, landed in 2021. Both are still rolling across the red planet in the name of science. Another exploratory craft with a similar plutonium-238–fueled RTG but a very different mission—to fly between multiple test sites on Titan, Saturn’s largest moon—recently got one step closer to deployment.
On April 25, NASA and the Johns Hopkins University Applied Physics Laboratory (APL) announced that the Dragonfly mission to Saturn’s icy moon passed its critical design review. “Passing this mission milestone means that Dragonfly’s mission design, fabrication, integration, and test plans are all approved, and the mission can now turn its attention to the construction of the spacecraft itself,” according to NASA.
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.
