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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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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Nuclear Science and Engineering
May 2025
Nuclear Technology
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Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Technical Session|Methods
Wednesday, April 24, 2024|10:15AM–12:00PM PDT|Continental Ballroom 1
Session Chair:
Tomoaki Watanabe (Japan Atomic Energy Agency)
Alternate Chair:
Anselmo T. Cisneros (TerraPower)
Session Organizer:
Go Chiba (Hokkaido University)
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Validation of ENDF/B-VIII.0 Cross-Section Library for METAL-FAST Graphite Systems
10:15–10:35AM PDT
Paul Vollrath (Georgia Tech), Farzad Rahnema (Georgia Tech), Alex Shaw (ORNL)
Paper
Investigation of the Impact of TSL Data Libraries and Geometry Variations on the MSRE Benchmark
10:35–10:55AM PDT
Aidana Bauyrzhan (NCSU), Ayman I. Hawari (NCSU)
Assessing Criticality Implications of Small Angle Neutron Scattering and Porosity Misrepresentation in ENDF/B-VIII.1 TSLs for Nuclear Graphite
10:55–11:15AM PDT
Kemal Ramic (ORNL), Iyad Al-Qasir (ORNL), Friederike Bostelmann (ORNL), Chris W. Chapman (ORNL), Anne Campbell (ORNL), Kyle Grammer (ORNL), Zain Karriem (ORNL), Jose Ignacio Marquez Damian (European Spallation Source), Mark Baird (ORNL), Dorothea Wiarda (ORNL), Luke Daemen (ORNL), Eric Novak (ORNL), Jesse Brown (ORNL), Goran Arbanas (ORNL), Luiz Leal (ORNL), Germina Ilas (ORNL), William A. Wieselquist (ORNL)
Comparison of Coarse Energy Group Structures for Graphite Moderated Molten Salt Reactors and Molten Salt Reactor Experiment Modeling
11:15–11:35AM PDT
J. Faulkner (Georgia Tech), B. Petrovic (Georgia Tech)
Reactivity Impact of Updated 35Cl Nuclear Data on the Molten Chloride Reactor Experiment
11:35–11:55AM PDT
T. Cisneros (TerraPower), M. Wargon (TerraPower), K. Hanselman (LANL), T. Kawano (LANL), S.A. Kuvin (LANL), H.Y. Lee (LANL)
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