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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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September 2025
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October 2025
Latest News
Empowering the next generation: ANS’s newest book focuses on careers in nuclear energy
A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.
When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.
Technical Session|Computational Thermal Hydraulics
Tuesday, August 22, 2023|1:30–3:10PM EDT|Columbia 1
Session Chair:
Cesare Frepoli (FPolisolutions)
Alternate Chair:
Joshua Kaizer
Session Organizer:
Stephen M. Bajorek (USNRC)
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Modeling of Table Top Primary Heat Exchanger Experiment RUN#5 by Means of the System Codes RELAP5 MOD 3.3 and Flownex SE 8.4
1:30–1:50PM EDT
D. Rozzia (SCK CEN), M. Potgieter (SCK CEN), J. Cools (SCK CEN), T. Van Loy (SCK CEN), G. Kennedy (SCK CEN), J. Pacio (SCK CEN), K. Van Tichelen (SCK CEN), R. Fernandez (SCK CEN)
Paper
Transient Quench Model for Top and Bottom Flooding of Debris Beds with Non-Condensable Gas
1:50–2:10PM EDT
Abinson Paul Nedumparambil (Institute of Nuclear Technology and Energy Systems), Markus Petroff (Institute of Nuclear Technology and Energy Systems), Michael Buck (Institute of Nuclear Technology and Energy Systems), Jörg Starflinger (Institute of Nuclear Technology and Energy Systems)
Development and Verification of the Model for Supercritical Carbon Dioxide Closed Brayton Cycle System in the Reactor System Analysis Code RESYS
2:10–2:30PM EDT
Zongyun Wu (China Institute of Atomic Energy), Mingyu Wu (China Institute of Atomic Energy), Tiancai Liu (China Institute of Atomic Energy)
Best-Estimate-Plus-Uncertainty Analyses of PTS Using a Mixing-Analysis Program for the APAL European Project
2:30–2:50PM EDT
Richard Trewin (Framatome), Pavel Kral (Nuclear Research Institute Rez), Tomas Nikl (Nuclear Research Institute Rez)
A Lumped-Parameter Model of a Pool Heated from Below with Gravity-Driven Flashing Occurence
2:50–3:10PM EDT
Jimmy Martin (IRSN), Pierre Ruyer (IRSN), Matthieu Duponcheel (Universite Catholique de Louvain), Yann Bartosiewicz (Universite Catholique de Louvain)
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