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|Special Session on Research Activities of the Center for Exascale Monte Carlo Neutron Transport (CEMeNT)
Wednesday, April 30, 2025|1:00–2:40PM MDT|Lawrence B
Session Chair:
Madicken Munk (Oregon State)
Alternate Chair:
Todd Palmer (Oregon State)
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A Batch Power Iteration Approach for the Iterative Quasi-Monte Carlo Method Using a Randomized-Halton Sequence
1:00–1:25PM MDT
Samuel Pasmann (Thea Energy), Ilham Variansyah (Oregon State), C.T. Kelley (NCSU), Ryan G. McClarren (Univ. Notre Dame)
Paper
Monte Carlo Uncertainty Quantification and Sensitivity Analysis for the C5G7 Benchmark
1:25–1:50PM MDT
Kayla B. Clements (Oregon State), Todd S. Palmer (Oregon State), Aaron J. Olson (Sandia), Gianluca Geraci (Sandia), Ilham Variansyah (Oregon State)
Derivative Source Method for Monte Carlo Transport Calculation of Sensitivities to Material Densities and Dimensions
1:50–2:15PM MDT
Ilham Variansyah (Oregon State), Ryan G. McClarren (Univ. Notre Dame), Todd S. Palmer (Oregon State)
Implicit Collision Multiplicity Adjustment for Efficient Monte Carlo Transport Simulation of Reactivity Excursion
2:15–2:40PM MDT
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