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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!
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The journey of the U.S. fuel cycle
Craig Piercycpiercy@ans.org
While most big journeys begin with a clear objective, they rarely start with an exact knowledge of the route. When commissioning the Lewis and Clark expedition in 1803, President Thomas Jefferson didn’t provide specific “turn right at the big mountain” directions to the Corps of Discovery. He gave goal-oriented instructions: explore the Missouri River, find its source, search for a transcontinental water route to the Pacific, and build scientific and cultural knowledge along the way.
Jefferson left it up to Lewis and Clark to turn his broad, geopolitically motivated guidance into gritty reality.
Similarly, U.S. nuclear policy has begun a journey toward closing the U.S. nuclear fuel cycle. There is a clear signal of support for recycling from the Trump administration, along with growing bipartisan excitement in Congress. Yet the precise path remains unclear.
Technical Session|Sponsored by RPD
Wednesday, June 15, 2022|10:15AM–12:00PM PDT|Carmel
Session Chair:
Moussa Mahgerefteh (Constellation)
Alternate Chair:
Massimiliano Fratoni
Session Organizer:
Pavel V. Tsvetkov (TAMU)
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Quantum Physics Inspired Methods for Two-Batch PWR Loading Pattern Optimization
Joseph Fustero (NCSU), Frank Mueller (NCSU), David Kropaczek (ORNL), Colleen Farrelly (Staticlsym)
Paper
The Neutronic and Economic Advantages of Cuboid Geometry for CANDU and Low-Pressure Reactors
Ibrahim K. Attieh (X-Energy), P. Eng (X-Energy), Roger Webb (SRNL (Retiree)), John Hilborn (Atomic Energy of Canada (Retiree))
Topologically Optimal Nuclear Core Designs Using Deterministic Neutronics
Gavin Ridley (MIT), Lorenzo Venneri (MIT), Benoit Forget (MIT)
Analytic Reactivity Error Analysis of Cross Section Interpolation Methods in Nodal Diffusion Codes
Thomas Folk (Univ. Michigan), Siddhartha Srivastava (Univ. Michigan), Brendan Kochunas (Univ. Michigan)
Understanding Xenon Oscillations Through Physics-Based Reduced Order Modelling
K.T. Pedersen (Chalmers Univ. of Technology), C. Demazière (Chalmers Univ. of Technology), P. Vinai (Chalmers Univ. of Technology)
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