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
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
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Mar 2025
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Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
El Salvador: Looking to nuclear
In 2022, El Salvador’s leadership decided to expand its modest, mostly hydro- and geothermal-based electricity system, which is supported by expensive imported natural gas and diesel generation. They chose to use advanced nuclear reactors, preferably fueled by thorium-based fuels, to power their civilian efforts. The choice of thorium was made to inform the world that the reactor program was for civilian purposes only, and so they chose a fuel that was plentiful, easy to source and work with, and not a proliferation risk.
Technical Session|Methods
Monday, April 22, 2024|10:15AM–12:00PM PDT|Franciscan D
Session Chair:
Jeremy Bousquet (GRS)
Alternate Chair:
Emily Shemon (ANL)
Session Organizer:
Mathieu Hursin (École Polytechnique Fédérale de Lausanne)
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Impact of the Multiphysics Coupling on the Reactivity Swing and Fuel Depletion of an SFR Phenix Like Subassembly
10:15–10:35AM PDT
V. Viallon (CEA), E.Y. Garcia-Cervantes (CEA), L. Buiron (CEA)
Paper
Investigation of Ring-Heterogeneous Geometry Approximation for Efficient and Practical SFR Analysis
10:35–10:55AM PDT
Namjae Choi (INL), Stefano Terlizzi (INL), Yaqi Wang (INL), Hansol Park (ANL), Changho Lee (ANL), Javier Ortensi (INL)
Modeling and Validation of Axial Thermal Expansion in the ARMI Framework
10:55–11:15AM PDT
Chris Keckler (TerraPower), Anthony L. Alberti (TerraPower)
Modeling of Sodium Fast Reactors Thermal Expansion Reactivity Feedback Using GeN-Foam and Serpent
11:15–11:35AM PDT
Giovanni Nervi (École Polytechnique Fédérale de Lausanne), Alessandro Scolaro (École Polytechnique Fédérale de Lausanne), Mathieu Hursin (École Polytechnique Fédérale de Lausanne), Carlo Fiorina (TAMU)
Uniform and Non-Uniform Geometric Deformations in Monte Carlo with Virtual Density Theory
11:35–11:55AM PDT
Anuj Dubey (Univ. Cambridge), Mikolaj Adam Kowalski (Univ. Cambridge), Eugene Shwageraus (Univ. Cambridge)
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