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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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Oct 2025
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Nuclear Science and Engineering
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
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 FED
Wednesday, June 14, 2023|10:00–11:45AM EDT|Marriott 4
Session Chair:
Lauren M. Garrison (Commonwealth Fusion Systems)
Session Organizer:
Paul W. Humrickhouse
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Integrated Fusion Neutronics Workflow for MCNP, OpenMC, and Shift
10:00–10:20AM EDT
J.W. Bae (ORNL), K. Borowiec (ORNL), A. Sircar (ORNL), V. Badalassi (ORNL)
Paper
Searching the Plasma Geometry and Configuration Spaces for Feasible Tokamak Design Point
10:20–10:40AM EDT
Ehab Hassan (ORNL), C.E. Kessel (ORNL), J.M. Park (ORNL), P.B. Snyder (ORNL), C.S. Collins (ORNL)
Validation and Verification of a RELAP5-3D Model of the Lobo Lead Loop
10:40–11:00AM EDT
Jonathan L. Barthle (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville), Nicholas R. Brown (Univ. Tennessee, Knoxville)
Shielding Design of SPARC Diagnostic Ports: Practical Lessons
11:00–11:20AM EDT
Ian R. Miner (Commonwealth Fusion Systems), Megan Wart (Commonwealth Fusion Systems), Ryanne Kennedy (MPR Assoc.)
Presentation Slides (Visible to Attendees)
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