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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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!
Latest Magazine Issues
Apr 2025
Jan 2025
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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|Experimental Reactor Physics
Monday, April 22, 2024|3:30–5:15PM PDT|Franciscan B
Session Chair:
Jesson D. Hutchinson
Alternate Chair:
Catherine Percher (LLNL)
Session Organizer:
Luka Snoj
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Application of Monte Carlo Solver Solomon to Critical Mass Calculation of Fuel Randomization System
3:30–3:50PM PDT
Tomoaki Watanabe (Japan Atomic Energy Agency), Taro Ueki (Japan Atomic Energy Agency), Kenya Suyama (Japan Atomic Energy Agency)
Paper
Statistical Error Estimation of Autocorrelation Method Using Circular Block Bootstrap Method
3:50–4:10PM PDT
Ryoga Hirota (Nagoya Univ.), Tomohiro Endo (Nagoya Univ.), Akio Yamamoto (Nagoya Univ.), Kenichi Watanabe (Kyushu Univ.), Junichi H. Kaneko (Hokkaido Univ.)
Sensitivities of Configurations with Missing Fuel Rods
4:10–4:30PM PDT
Benjamin Dechenaux (IRSN)
Presentation Slides (Visible to Attendees)
Investigation of Subcriticality Monitoring Method Using Improved Simplest Reactivity Estimator with Bilateral Filter
4:30–4:50PM PDT
Taiyo Moribe (Nagoya Univ.), Tomohiro Endo (Nagoya Univ.), Akio Yamamoto (Nagoya Univ.), Junichi H. Kaneko (Hokkaido Univ.)
Evaluation of Thermal Scattering Law for U3Si2 Using Temperature-Dependent Phonon Density of States
4:50–5:10PM PDT
Junhyoung Gil (NCSU), Ayman I. Hawari (NCSU)
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