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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
Monday, October 4, 2021|3:30–5:10PM EDT
Session Chair:
Todd Palmer (Oregon State Univ.)
Session Organizer:
Todd S. Palmer (Oregon State Univ.)
Student Producer:
Khaldoon Al-Dawood (NC State Univ.)
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Surrogate Modeling of Criticality Experiments with Mixed Qualitative and Quantitative Factors
3:30–3:55PM EDT
Daniel Siefman (LLNL), William Zywiec (LLNL), Catherine Percher (LLNL), David Heinrichs (LLNL)
Paper
Proper Orthogonal Decomposition-Based Nonlinear Acceleration for Fuel Depletion Calculations
3:55–4:20PM EDT
Colin R. Brennan (Univ. of Texas at Austin), Kevin T. Clarno (Univ. of Texas at Austin)
Projection-based Parametric Model Order Reduction for Transport Simulation Based on Affine Decomposition of the Operators
4:20–4:45PM EDT
Patrick Behne (Texas A&M Univ.), Jean Ragusa (Texas A&M Univ.), Mauricio Tano (Texas A&M Univ.)
A Non-Intrusive Reduced Order Model for Neutronic Transient Analyses of the Alfred Reactor
4:45–5:10PM EDT
Nicolo Abrate (Politecnico di Torino), Sandra Dulla (Politecnico di Torino), Nicola Pedroni (Politecnico di Torino), Piero Ravetto (Politecnico di Torino)
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