ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
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!
Latest Magazine Issues
Sep 2025
Jan 2025
Latest Journal Issues
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
Thursday, September 18, 2025|8:00–9:40AM CDT|Grand Salon AB
Session Chair:
Peter Brain
Alternate Chair:
Rowdy Davis
Session Organizer:
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Status of the International Criticality Safety Benchmark Evaluation Project
8:00–8:20AM CDT
Catherine M. Percher (LLNL), John D. Bess (JFoster & Assoc.), William J. Marshall (ORNL), Julie-Fiona Martin (OECD NEA), Ian P. Hill (OECD NEA), Tatiana Ivanova (OECD NEA)
Paper
Reactor Critical Experiments of the Rensselaer Polytechnic Institute Reactor Critical Facility with Noteworthy Non-fissile Stainless Steel Elements Sensitivity
8:20–8:40AM CDT
Mathieu Dupont (ORNL), Wei Ji (Rensselaer Polytechnic Institute), Matthew D. Eklund (INL)
Presented by Andrew Holcomb (ORNL)
Computational Investigation of 2D Nuclide Concentrations at Burnups close to Peak Reactivity in the Context of the LAGER Project
8:40–9:00AM CDT
Volker Hannstein (BGZ Gesellschaft für Zwischenlagerung mbH), Maik Stuke (BGZ Gesellschaft für Zwischenlagerung mbH)
The Need to Revise the Flattop-Plutonium Benchmark
9:00–9:10AM CDT
Kristin N. Stolte (LANL), Theresa E. Cutler (LANL)
TRISO-form HALEU-fueled Experiment for Transport Applications (THETA) Serpent 2 Benchmarking
9:10–9:30AM CDT
Alex Levinsky (LANL), Kristin N. Stolte (LANL), Michael E. Rising (LANL), Christopher B. Campbell (Kairos Power), Nader Satvat (Kairos Power), Theresa E. Cutler (LANL)
To join the conversation, you must be logged in and registered for the meeting.