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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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Sep 2025
Jan 2025
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Nuclear Science and Engineering
October 2025
Nuclear Technology
September 2025
Fusion Science and Technology
Latest News
PR: American Nuclear Society welcomes Senate confirmation of Ted Garrish as the DOE’s nuclear energy secretary
Washington, D.C. — The American Nuclear Society (ANS) applauds the U.S. Senate's confirmation of Theodore “Ted” Garrish as Assistant Secretary for Nuclear Energy at the U.S. Department of Energy (DOE).
“On behalf of over 11,000 professionals in the fields of nuclear science and technology, the American Nuclear Society congratulates Mr. Garrish on being confirmed by the Senate to once again lead the DOE Office of Nuclear Energy,” said ANS President H.M. "Hash" Hashemian.
Technical Session
Tuesday, September 16, 2025|8:00–9:40AM CDT|Grand Salon DE
Session Chair:
Rowdy Davis
Session Organizer:
Alternate Chair:
Jesson D. Hutchinson
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From Quarter Inch to Infinite Reflection: Designing Ta-Reflected Pu Systems
8:00–8:20AM CDT
Peter Brain (LANL), Riley Bulso (LANL), Theresa Cutler (LANL), Jesson Hutchinson (LANL), Noah Kleedtke (LANL), Isaac Michaud (LANL), Nick Wynne (LANL)
Paper
Nuclear Data Sensitivity, Uncertainties, and Sensitivity Metrics for Tantalum Reflected Systems
8:20–8:40AM CDT
J. Hutchinson (LANL), P. Brain (LANL), M. Catlett (LANL), T. Cutler (LANL), N. Gibson (LANL), M. Herman (Brookhaven), N. Kleedtke (LANL), R. Little (LANL), I. Michaud (LANL), D. Neudecker (LANL), N. Wynne (LANL)
Comparison of Approach-to-Critical Methods for Systems with Changing Starter Neutron Rates
8:40–9:00AM CDT
Jesson Hutchinson (LANL), Natalie Cannon (Georgia Tech), Daniela Henzlova (LANL), Cole Kostelac (LANL), George McKenzie (LANL), Jawad Moussa (LANL), Mark Nelson (LANL), Robert Weldon (LANL), Nicholas Whitman (LANL)
PFUNS: Critical Experiment with Bare Highly Enriched Uranium Shells Benchmark
9:00–9:20AM CDT
Rene Sanchez (LANL), Alexander McSpaden (LANL)
The PARADIGM Experiment: An Experiment to Maximally Reduce Uncertainty in Pu-239 Intermediate Energy Nuclear Data
9:20–9:40AM CDT
Theresa Cutler (LANL), Kelsey Amundson (LANL), Peter Brain (LANL), Matt Devlin (LANL), Jesson Hutchinson (LANL), Noah Kleedtke (LANL), Annamaria McHugh (LANL), Denise Neudecker (LANL), Eric Williamson (LANL)
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