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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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Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
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|Deterministic Transport Methods and Applications
Monday, April 28, 2025|3:15–4:55PM MDT|Lawrence A
Session Chair:
Jae Chang (LANL)
Alternate Chair:
Mathew Cleveland (LANL)
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A Hybrid SN-Diffusion Method for Molten Salt Reactor Control Rod Modeling
3:15–3:40PM MDT
Sun Myung Park (Univ. Illinois, Urbana-Champaign), Kathryn D. Huff (Univ. Illinois, Urbana-Champaign), Madicken Munk (Univ. Illinois, Urbana-Champaign)
Paper
Response Matrix Equivalence Method Based on Relaxed Flux Continuity Equation and its Application to Reflector Homogenization for Diffusion Calculations
3:40–4:05PM MDT
Sami Machach (Polytechnique Montréal), Alain Hebert (Polytechnique Montreal)
High-Accuracy Critical Radii Analytic Expressions for Spherical Reflected Systems Based on Discontinuous Asymptotic Diffusion Theory
4:05–4:30PM MDT
Shay I. Heizler (Hebrew Univ.)
Adaptive Mesh Refinement of the Domain Decomposition+𝐿2-Jumps Method Applied to the Neutron Diffusion Equation on 3D Structured Meshes
4:30–4:55PM MDT
Mario Gervais (CEA), François Madiot (CEA), Minh-Hieu Do (CEA), Patrick Ciarlet (ENSTA)
Presentation Slides (Visible to Attendees)
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