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.
Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
Fusion Science and Technology
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|3:30–5:15PM PDT|Franciscan D
Session Chair:
Eugene Shwageraus
Session Organizer:
Alternate Chair:
Valeria Raffuzzi
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Particle Tracking in Involute-Based Reactor Geometries in SCONE Monte Carlo Code
3:30–3:50PM PDT
Mikolaj Adam Kowalski (Univ. Cambridge), Congjin Ding (Univ. Cambridge), Eugene Shwageraus (Univ. Cambridge)
Paper
Calculating the Change in Power Shape due to Localised Perturbations to Nuclear Data Using a Generalised Sensitivities Method in MONK
3:50–4:10PM PDT
Andrew J. Cox (ANSWERS Software Service), Richard P. Hiles (ANSWERS Software Service), Simon D. Richards (ANSWERS Software Service), Paul N. Smith (ANSWERS Software Service)
Seismic Deformation of Spacer Grids -- Extension of ARCADIA and Validation of Proposed Neutronic Model
4:10–4:30PM PDT
J. Marten (Framatome), M. Schneider (Framatome), G. Sieber (Framatome), H. Keßler (Framatome)
UO2-Mo Composite Fuel Model Development and Simulation Using the ENIGMA Code
4:30–4:50PM PDT
Aiden Peakman (Univ. Manchester), Glyn Rossiter (National Nuclear Laboratory)
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