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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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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Jun 2025
Jan 2025
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Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Technical Session|Computational Thermal Hydraulics
Monday, August 21, 2023|1:30–3:10PM EDT|Columbia 1
Session Chair:
Jun Liao (Westinghouse Electric Co.)
Alternate Chair:
Igor A. Bolotnov
Session Organizer:
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Implementation of a Three-Field Framework in TRACE to Improve the Prediction of Reactor Core Reflood Conditions Part I
1:30–1:50PM EDT
Matthew Bernard (U.S. Nuclear Regulatory Commission), Stephen Bajorek (U.S. Nuclear Regulatory Commission)
Paper
Implementation of a Three-Field Framework in TRACE to Improve the Prediction of Reactor Core Reflood Conditions Part II
1:50–2:10PM EDT
Omar S. Al-Yahia (Paul Scherrer Institute), Matthew Bernard (U.S. Nuclear Regulatory Commission), Ivor Clifford (Paul Scherrer Institute), Gregory Perret (Paul Scherrer Institute), Stephen Bajorek (U.S. Nuclear Regulatory Commission), Hakim Ferroukhi (Paul Scherrer Institute)
Analysis of a Selected Experiment of the OSU-MASLWR Test Facility Regarding the Heat Transfer in Helically Coiled Steam Generators Using AC²-ATHLET
2:10–2:30PM EDT
Julia Krieger (Ruhr-Universität Bochum), Christoph Bratfisch (Ruhr-Universität Bochum), Marco K. Koch (Ruhr-Universität Bochum)
Numerical Evaluation of the Thermal-Hydraulic Effect due to the Thermal Expansion Behavior of Fuel Subassembly
2:30–2:50PM EDT
Liancheng Guo (GRS), Armin Seubert (GRS), Philipp Schöffel (GRS)
Presented by Sebastian Buchholz (GRS)
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